Liebert® DSE™
System Design Manual–Downflow, 80-165kW, 23-43 Tons; Upflow, 80-85kW, 23-24 Tons; 50/60Hz
TABLE OF CONTENTS
1.0
LIEBERT DSE COMPONENTS AND NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1
Model Number Nomenclature - 25 Digit Configuration Number . . . . . . . . . . . . . . . . . . . . . . 3
2.0
AIR-COOLED PERFORMANCE DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3.0
DIMENSIONS AND EQUIPMENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1
Floor Stand Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.0
PIPING SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.0
CONDENSERS—DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.0
PLENUM DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.1
Outdoor Equipment Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.0
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8.0
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
8.1
Standard Electrical Connections—Liebert MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.2
Notes on Electrical Connections—Liebert MC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.2.1
Wye- vs. Delta-Connected Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
8.3
Standard Electrical Field Connections, DA080 and DA085 Upflow and Downflow. . . . . . . 42
8.4
CANbus Electrical Connections, DA080 and DA085 Upflow and Downflow . . . . . . . . . . . . 42
8.5
Optional Electrical Field Connections, DA080 and DA085 Upflow and Downflow . . . . . . . 43
8.6
Optional Low-Voltage Terminal Package Field Connections, DA080 and DA085 Upflow
and Downflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8.7
Liebert DSE Electrical Field Connection Descriptions, DA125, DA150 and DA165
Downflow Models Standard Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
8.8
Optional Electrical Connections, DA125, DA150 and DA165 Downflow Models . . . . . . . . . 46
8.9
Optional Low-Voltage Terminal Package Connections, DA125, DA150 and DA165
Downflow Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.0
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
1.0
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2.0
PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.0
EXECUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
i
ii
Liebert DSE Components and Nomenclature
1.0
LIEBERT DSE COMPONENTS AND NOMENCLATURE
Figure 1
Downflow model component locations
10
11
1
9
2
3
4
4
8
7
6
5
1. Liebert iCOM
2. THD Assembly (575V units only)
3. Evaporator Coil
4. Smoke Sensor (optional)
5. Fan Modules (internal position)
6. Infrared Humidifier (optional)
7. Condensate Pump (optional)
8. Compressor Section
9. Disconnect (optional)
DPN003452
10. Filter Plenum
Rev. 0
11. Electric Box
1
Liebert® DSE™
Liebert DSE Components and Nomenclature
Figure 2
Upflow model component locations
1
11
10
2
9
3
8
Typical
1. EC Fans
2. Plenum (Front Discharge Shown)
3. Liebert iCOM
4. Evaporator Coil
5. Smoke Sensor (optional)
6. Infrared Humidifier (optional)
7. Condensate Pump (optional)
8. Filters (not shown for clarity)
9. Electric Box
10. Disconnect (optional)
11. Compressor Section
Liebert® DSE™
4
8
6
7
5
2
DPN003451
Rev. 0
Liebert DSE Components and Nomenclature
1.1
Model Number Nomenclature - 25 Digit Configuration Number
Model #** Part 1/2
Model Details
1
2
3
4
5
6
7
8
9
10
11
12
13
D
A
1
2
5
D
A
1
A
T
H
A
0
Digits 1-2 - Product Family
Model # Part 2 *
14
15
16
17
18
19
20
21
22
23
24
25
8
1
1
D
0
0
S
P
1
2
3
S
Digit 17 - High-Voltage Options
DA = Liebert DSE
0 = No disconnect
Digits 3-5 - Cooling Capacity, kW
D = Non-Locking Disconnect
Nominal Sensible Capacity, kW
L = Locking Disconnect
Digit 6 - Air Discharge
3 = No Disconnect, With Condensate Pump
D = Downflow
4 = Non-Locking Disconnect, With Condensate Pump
U = Upflow
5 = Locking Disconnect, With Condensate Pump
Digit 7 - System Type
Digit 18 - Option Packages
A = Air-Cooled
0 = None
P = Air-Cooled, Econ-O-Phase Ready
L = Option Package #1 - Low Voltage Terminal Package
Digit 8 - Airflow (Fan Type)
H = Reheat and Humidifier Lockout
1 = EC Plug Fans
R = Remote Humidity Contact
Digit 9 - Power Supply
C = Option Package #1, Plus Reheat/Humidifier Lockout
A = 460V / 3ph / 60Hz
D = Option Package #1, Plus Remote Humidifier Contact
B = 575V / 3ph / 60Hz
E = Option Package #1, Plus Reheat/Humidifier Lockout, plus remote
contact
C = 208V / 3ph / 60Hz
D = 230 / 3ph / 60Hz
2 = 380-415 / 3ph / 60Hz
F = Remote Humidity Contact Plus Reheat/Humidifier Lockout
Digit 19 - Monitoring Cards
M = 400 / 3ph / 50Hz
Digit 10 - Cooling System
0 = No Cards
D = Digital Scroll, R-410A
U = One Liebert IS-Unity-DP™ Card
T = Tandem with Digital, R-410A
C = One Liebert SiteLink-E™ Card
Digit 11 - Humidification
6 = One Liebert IS-Unity-DP Card and One Liebert SiteLink-E Card
0 = None
H = Infrared Humidifier
7 = Two Liebert IS-Unity-DP Cards
Digit 20 - Sensors
Digit 12 - Display
0 = None
H = Liebert iCOM Control
S = Smoke Sensor
Digit 13 - Reheat
H = High-Temperature Sensor
0 = None
F = Smoke and High-Temperature Sensors
1 = Electric Reheat, 30kW
C = Compressor Overload Sensors
Digit 14 - Air Filter
A = Compressor, High-Temperature Sensor
8 = MERV 8, 4"
D = Compressor, Smoke Sensor
9 = MERV 11, 4"
A = MERV 13, 4"
K = Compressor, High-Temperature, Smoke Sensors
Digit 21 - Packaging
6 = MERV 11, 2" plus MERV 8 prefilter, 2"
C = MERV 13, 2" plus MERV 8 prefilter, 2"
P = Domestic
Digit 22 - 24 Configuration Code
Digit 15 - Coil Options
1 = Non-Coated Coil, Indoor Unit
—
Digit 25 - Configuration Code
2 = Coated Coil, Indoor Unit
A=1
Digit 16 - Enclosure Options
S = SFA
1 = Color standard
2 = Color Optional
6 = Color Standard W/Double-Skin Panels
9 = Color Optional W/Double-Skin Panels
3 = Color Standard & IBC/OSHPD Bracing
4 = Color Optional & IBC/OSHPD Bracing
8 = Color Standard, IBC/OSHPD, W/Double-Skin Panels
*
A = Color Optional, IBC/OSHPD, W/Double-Skin Panels
3
The 14-digit model number consists of the first 10 digits and last four
digits of the Configuration Number.
Liebert® DSE™
Air-Cooled Performance Data
2.0
AIR-COOLED PERFORMANCE DATA
Table 1
Capacity data with and EC fans, 60Hz
Model Size
80
85
125
150
165
Net Capacity Data kW (kBTUH)
95°F DB, 67.7°F WB, 52.3°F DP (35°C DB, 19.8.°C WB) 24% RH
Total, kW (BTUH)
88 (300)
100 (341)
146 (499)
170 (581)
181 (53)
Sensible, kW (BTUH)
84 (287)
94 (321)
146 (499)
170 (581)
181 (53)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
3.2
3.1
3.8
3.2
3.2
Net Full-Load SCOP (kW/kW) @ 35 Outdoor Ambient
(Pump Mode)
10.5
10.1
17.5
13.0
13.0 4
90°F DB, 66.1°F WB, 52.3°F DP (32.2°C DB, 18.9°C WB) 28% RH
Total, kW (BTUH)
86 (294)
98 (334)
138 (471)
162 (552)
172 (50)
Sensible, kW (BTUH)
80 (273)
88 (300)
138 (471)
162 (552)
172 (50)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
3.1
3.0
3.6
3.1
3.0
Net Full-Load SCOP (kW/kW) @ 35 Outdoor Ambient
(Pump Mode)
9.8
9.4
14.1
12.5
12.5 4
85°F DB, 64.5°F WB, 52.3°FDP (29.4°C DB, 18.1°C WB) 32% RH
Total, kW (BTUH)
85 (290)
92 (314)
130 (444)
153 (522)
163 (48)
Sensible, kW (BTUH)
77 (263)
83 (283)
130 (444)
153 (522)
162 (48)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
3.0
2.7
3.4
2.9
2.9
Net Full-Load SCOP (kW/kW) @ 35 Outdoor Ambient
(Pump Mode)
9.1
8.7
12.2
12.0
12.0 4
80°F DB, 62.8°F WB, 52.3°F DP (26.7°C DB, 17.1°C WB) 38% RH
Total, kW (BTUH)
83 (283)
89 (304)
123 (420)
145 (494)
154 (45)
Sensible, kW (BTUH)
72 (246)
78 (266)
123 (420)
145 (494)
154 (45)
Net Full-Load SCOP (kW/kW) @ 95°F Outdoor Ambient
(Compressor Mode)
2.8
2.6
3.3
2.7
2.7
Net Full-Load SCOP (kW/kW) @ 35°F Outdoor Ambient
(Pump Mode)
8.2
7.9
11.5
11.1
11.1 4
75°F DB, 61.1°F WB, 52.3°F DP (23.9°C DB, 16.2°C WB) 45% RH
Total, kW (BTUH)
75 (256)
86 (294)
116 (396)
134 (457)
147 (43)
Sensible, kW (BTUH)
67 (229)
73 (249)
112 (382)
134 (457)
147 (43)
Net Full-Load SCOP (kW/kW) @ 95°F Outdoor Ambient
(Compressor Mode)
2.6
2.4
3.0
2.4
2.5
Net Full-Load SCOP (kW/kW) @ 35°F Outdoor Ambient
(Pump Mode)
7.5
7.2
10.7
10.2
10.2 4
9,600
(16,310)
10,400
(17,670)
18,000
(30,582)
18,000 3
(30,582)
20,000 3
(33980)
4.6
5.7
5.9
5.9
8.0
2
2
3
3
3
FAN SECTION - Downflow models
Standard Air Volume - CFM (CMH) 0.2" external static
Operating Fan kW, Total for All Fans
Quantity of Fans
1.
2.
3.
4.
Capacity data is rated and factory certified per ASHRAE 127-2007 with a 5% tolerance
Some options or combinations of options may result in reduced air flow; consult factory for recommendations.
Option for 24,000 CFM fans on DA150 and DA165 is available for DA150 and DA165. consult factory for more details.
DA165 will achieve full capacity at lower ambient temperatures than DA125 or DA150 units.
Liebert® DSE™
4
Air-Cooled Performance Data
Table 2
Capacity data with and EC fans, 50Hz
Model Size
80
85
125
150
Total kW (BTUH)
87 (297)
92 (314)
154 (526)
171 (584)
Sensible kW (BTUH)
83 (283)
86 (294)
154 (526)
171 (584)
Net Full-load SCOP (kW/kW) @ 95 Outdoor Ambient (Compressor Mode)
3.4
3.2
3.3
3.3
Net Full-load SCOP (kW/kW) @ 35 Outdoor Ambient (Pump Mode)
10.5
10.1
17.5
13.0
Total kW (BTUH)
84 (287)
90 (307)
145 (495)
161 (549)
Sensible kW (BTUH)
78 (266)
81 (276)
145 (495)
161 (549)
Net Capacity Data, kW (kBTUH)
95°F DB, 67.7°F WB, 52.3°F DP (35°C DB, 19.8.°C WB) 24% RH
90°F DB, 66.1°F WB, 52.3°F DP (32.2°C DB, 18.9°C WB) 28% RH
Net Full-load SCOP (kW/kW) @ 95 Outdoor Ambient (Compressor Mode)
3.2
3.0
3.2
3.2
Net Full-load SCOP (kW/kW) @ 35 Outdoor Ambient (Pump Mode)
9.8
9.4
14.1
12.5
Total kW (BTUH)
81 (276)
85 (290)
137 (468)
152 (519)
Sensible kW (BTUH)
85°F DB, 64.5°F WB, 52.3°FDP (29.4°C DB, 18.1°C WB) 32% RH
73 (249)
76 (259)
137 (468)
152 (519)
Net Full-load SCOP (kW/kW) @ 95 Outdoor Ambient (Compressor Mode)
3.0
2.9
3.0
3.0
Net Full-load SCOP (kW/kW) @ 35 Outdoor Ambient (Pump Mode)
9.1
8.7
12.2
12.0
Total kW (BTUH)
78 (266)
82 (280)
129 (440)
142 (485)
Sensible kW (BTUH)
69 (235)
72 (246)
129 (440)
142 (485)
Net Full-load SCOP (kW/kW) @ 95 Outdoor Ambient (Compressor Mode)
2.9
2.7
2.9
2.8
Net Full-load SCOP (kW/kW) @ 35 Outdoor Ambient (Pump Mode)
8.2
7.9
11.5
11.1
Total kW (BTUH)
72 (246)
78 (266)
125 (427)
135 (461)
Sensible kW (BTUH)
64 (218)
67 (229)
121 (413)
130 (444)
Net Full-load SCOP (kW/kW) @ 95 Outdoor Ambient (Compressor Mode)
2.7
2.6
2.7
2.6
Net Full-load SCOP (kW/kW) @ 35 Outdoor Ambient (Pump Mode)
7.5
7.2
10.7
10.2
9,600
(16,310)
10,400
(17,670)
18,000
(30,582)
18,000 3
(30,582)
4.4
5.5
7.3
7
2
2
3
3
80°F DB, 62.8°F WB, 52.3°F DP (26.7°C DB, 17.1°C WB) 38% RH
75°F DB, 61.1°F WB, 52.3°F DP (23.9°C DB, 16.2°C WB) 45% RH
FAN SECTION - Downflow models - Fixed Pitch, Two Belts
Standard Air Volume - CFM (CMH) 0.2" external static
Operating Fan kW, total for all fans
Number of Fans
1. Capacity data is rated and factory certified per ASHRAE 127-2007 with a 5% tolerance
2. Some options or combinations of options may result in reduced air flow; consult factory for recommendations.
3. Option for 24,000 CFM fans on DA150 and DA165 is available for DA150 and DA165. consult factory for more details.
5
Liebert® DSE™
Air-Cooled Performance Data
Table 3
Physical data—Air-cooled units, 60Hz models
Model Size
80
85
125
150
165
24.65 (2.3)
24.65 (2.3)
56.2 (5.2)
56.2 (5.2)
56.2 (5.2)
6
6
6
6
6
320.3 (1.6)
354
(1.8)
EVAPORATOR COIL- A-Frame - Copper Tube/Aluminum Fin
Face Area, sq. ft. (sq. m)
Rows of Coil
Face Velocity, FPM (m/s), Std. Air Volume
389.5 (2.0)
421.9 (2.2)
320.3 (1.6)
REHEAT SECTION
Electric - Three (3) Stage, Stainless Steel Fin Tubular, capacity does not include fan motor heat
Capacity,- kW (KBTUH) - Std. Selection
15 (51.20)
15 (51.20)
30 (102.4)
30.0 (102.4)
30.0 (102.4)
Capacity, kW (KBTUH) - Opt. Selection
10 (34.13)
10 (34.13)
10.0 (34.1)
10.0 (34.1)
10.0 (34.1)
22 (10)
22 (10)
22 (10)
22 (10)
22 (10.0)
HUMIDIFIER SECTION
Infrared Humidifier
Capacity, lb./hr. (kg/h)
FILTER SECTION - Disposable Type - Nominal Sizes and Quantities
Nominal Size, inches
Quantity
25 x 20
25 x 20
21.5 x 24
21.5 x 24
21.5 x 24
4
4
10
10
10
7/8"
7/8"
7/8"
1-1/8"
1-1/8"
1-1/8"
1-1/8"
1-3/8"
1-3/8"
1-3/8"
Line Sizes*
Liquid Line, O.D. Copper (2/unit), up to 300 eq. ft
Hot Gas Line, O.D. Copper (2/unit), up to 300 eq. ft.
*
Infrared Humidifier,O.D. Copper
1/4"
1/4"
1/4"
1/4"
1/4"
Condensate Drain, FPT
3/4"
3/4"
1-1/8"
1-1/8"
1-1/8"
Condensate Drain w/opt Condensate Pump, OD
1/2"
1/2"
1/2"
1/2"
1/2"
For installations using pre-fabricated heat rejection skids, included piping must be factored into total equivalent length calculation.
Consult factory for details.
Table 4
Physical data—Air-cooled units, 50Hz models
Model Size
80
85
125
150
24.65 (2.3)
24.65 (2.3)
56.2 (5.2)
56.2 (5.2)
EVAPORATOR COIL- A-Frame - Copper Tube/Aluminum Fin
Face Area - sq. ft. (sq. m)
Rows of Coil
Face Velocity - FPM (m/s) - Std. Air Vol.
6
6
6
6
389.5 (2.0)
421.9 (2.2)
320.3 (1.6)
320.3 (1.6)
REHEAT SECTION
Electric—Three-Stage, Stainless Steel Fin Tubular; capacity does not include fan motor heat
Capacity - kW (KBTUH) - Std Selection
15 (51.20)
15 (51.20)
30.0 (102.4)
30.0 (102.4)
Capacity - kW (KBTUH) - Opt Selection
10 (34.13)
10 (34.13)
10.0 (34.1)
10.0 (34.1)
22.0 (10.0)
22.0 (10.0)
22.0 (10.0)
22.0 (10.0)
25 x 20
25 x 20
21.5 x 24
21.5 x 24
4
4
10
10
HUMIDIFIER SECTION
Infrared Humidifier
Capacity, lb./hr. (kg/h)
FILTER SECTION - Disposable Type - Nominal Sizes and Quantities
Nominal Size, inches
Quantity
Line Sizes
Liquid Line - O.D. Copper (2/unit), up to 300 eq. ft
Hot Gas Line - O.D. Copper (2/unit), up to 300 eq. ft.
Infrared Humidifier - O.D. Copper
7/8"
7/8"
7/8"
1-1/8"
1-1/8"
1-1/8"
1-3/8"
1-3/8"
1/4"
1/4"
1/4"
1/4"
Condensate Drain - FPT
3/4"
3/4"
1-1/8"
1-1/8"
Condensate Drain w/opt Condensate Pump - OD
1/2"
1/2"
1/2"
1/2"
Liebert® DSE™
6
Air-Cooled Performance Data
Table 5
Electrical data—DA080, 50/60Hz
Reheat Options
Unit Voltage
Rating
Humidifier
Options
FLA
208V, 60Hz
230V, 60Hz
380V, 60Hz
460V, 60Hz
575V, 60Hz
380-415V, 50Hz
Standard kW
None
Standard kW
None
Infrared
Infrared
None
None
119.2
119.2
97.1
92.6
WSA
128.5
128.5
116.8
101.9
OPD
150.0
150.0
125.0
125.0
FLA
114.8
114.8
94.6
92.6
WSA
124.1
124.1
113.7
101.9
OPD
150.0
150.0
125.0
125.0
FLA
74.8
74.8
62.6
62.6
WSA
81.4
81.4
69.2
69.2
OPD
100.0
100.0
90.0
90.0
FLA
59.6
59.6
48.0
48.0
WSA
64.6
64.6
57.6
53.0
OPD
80.0
80.0
70.0
70.0
FLA
46.6
46.6
35.8
35.0
WSA
50.2
50.2
43.2
38.6
OPD
60.0
60.0
50.0
50.0
FLA
64.0
64.0
52.2
51.2
WSA
69.2
69.2
62.8
56.4
OPD
80
80
70
70
1. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device.
2. Full-load amperage values do not reflect operating amperage values.
Table 6
Electrical data—DA085, 50/60Hz
Reheat Options
Unit Voltage
Rating
208V, 60Hz
230V, 60Hz
380V, 60Hz
460V, 60Hz
575V, 60Hz
380-415V, 50Hz
Standard kW
None
Standard kW
None
Infrared
Infrared
None
None
FLA
152.2
152.2
125.6
125.6
WSA
165.6
165.6
139.0
139.0
OPD
200.0
200.0
175.0
175.0
FLA
147.8
147.8
125.6
125.6
Humidifier
Options
WSA
161.2
161.2
139.0
139.0
OPD
200.0
200.0
175.0
175.0
FLA
74.8
74.8
62.6
62.6
WSA
81.4
81.4
69.2
69.2
OPD
100.0
100.0
90.0
90.0
FLA
61.0
61.0
49.4
49.4
WSA
66.2
66.2
58.5
54.6
OPD
80.0
80.0
70.0
70.0
FLA
50.8
50.8
39.2
39.2
WSA
54.9
54.9
45.8
43.3
OPD
70.0
70.0
50.0
50.0
FLA
71.2
71.2
58.4
58.4
WSA
77.3
77.3
67.3
64.5
OPD
100
100
80
80
1. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device.
2. Full-load amperage values do not reflect operating amperage values.
7
Liebert® DSE™
Air-Cooled Performance Data
Table 7
Electrical data—DA125, 50/60Hz
Reheat Options
Unit Voltage
Rating
208V, 60Hz
230V, 60Hz
380V, 60Hz
1
460V, 60Hz
575V, 60Hz
380-415V, 50Hz
Standard kW
None
Standard kW
None
Infrared
Infrared
None
None
FLA
174.6
174.6
165.7
148.0
WSA
193.2
182.3
193.2
155.7
OPD
200.0
200
200.0
175.0
FLA
170.2
170.2
165.2
148.0
WSA
192.5
177.9
192.5
155.7
OPD
200.0
200
200.0
175.0
FLA
93.6*
93.6*
88.1*
81.4*
WSA
102.7*
97.9*
102.7*
85.7*
OPD
110*
110*
100*
100*
FLA
79.9
79.9
78.8
68.3
WSA
92.2
83.5
92.2
71.9
OPD
100.0
90.0
100.0
80.0
FLA
63.4
63.4
60.5
51.8
WSA
70.7
66.1
70.7
54.5
OPD
80.0
70.0
80.0
60.0
FLA
105.4
105.
95.9
92.6
WSA
111.7
110.4
111.7
97.6
OPD
125
125
110
110
Humidifier
Options
1. 380V version of DA125 is not CSA- listed.
2. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device.
3. Full-load amperage values do not reflect operating amperage values.
Table 8
Electrical data—DA150, 50-60Hz
Reheat Options
Unit Voltage
Rating
380V, 60Hz
460V, 60Hz
575V, 60Hz
380-415V 50Hz
Standard kW
None
Standard kW
None
Infrared
Infrared
None
None
FLA
130.4
130.4
118.2
118.2
WSA
137
137
128.1
124.8
Humidifier
Options
OPD
150
150
150
150
FLA
102.7
102.7
93.7
91.1
WSA
107.7
107.7
104.3
96.1
OPD
125
125
110
110
FLA
77.8
77.8
69.3
66.2
WSA
81.4
81.4
77.2
69.8
OPD
90
90
80
80
FLA
108.2
108.2
99.7
95.4
WSA
113.4
113.4
111.1
100.6
OPD
125
125
125
110
1. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device.
2. Full-load amperage values do not reflect operating amperage values.
Liebert® DSE™
8
Air-Cooled Performance Data
Table 9
Electrical data—DA165, 60Hz
Reheat Options
Unit Voltage
Rating
Standard kW
None
Standard kW
None
Infrared
Infrared
None
None
FLA
130.4
130.4
118.2
118.2
WSA
137
137
128.1
124.8
Humidifier
Options
380V, 60Hz
460V, 60Hz
575V, 60Hz
OPD
150
150
150
150
FLA
105.5
105.5
95.8
93.9
WSA
110.7
110.7
106.6
99.1
OPD
125
125
110
110
FLA
86.2
86.2
75.6
74.6
WSA
90.3
90.3
84
78.7
OPD
100
100
90
90
1. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device.
2. Full-load amperage values do not reflect operating amperage values.
Table 10
Electrical data—Liebert MC™ three- and four-fan, three-phase condensers
Model
MCL110
MCM160
MCL165
MCL220
Input
Voltage
FLA
WSA
OPD
FLA
WSA
OPD
FLA
WSA
OPD
FLA
WSA
OPD
208/230
11.4
12.8
15
9.2
9.8
15
17.1
18.5
20
22.8
24.2
25
460
5.6
6.3
15
5.6
6.0
15
8.4
9.1
15
11.2
11.9
15
1. FLA = Full Load Amps; WSA = Wire Size Amps; OPD = Maximum Overcurrent Protection Device.
2. Must be connected to wye 3-phase systems with solidly grounded neutral.
Table 11
Condenser shipping weights, dimensions and volume, approximate
Domestic Packaging
Model #
Number
of Fans
Weight
lb (kg)
Dimensions
LxWxH
in. (cm)
MCS028
1
359
(163)
MCS056
2
MCM040
Export Packaging
Dimensions
(L x W x H)
in. (cm)
Volume
ft3 (m3)
Weight
lb (kg)
Volume
ft3 (m3)
76 x 36 x 63
(193 x 91 x 160)
100 (2.8)
476 (216)
77 x 37 x 64
(196 x 94 x 163)
106 (3.0)
562
(255)
122 x 36 x 63
(310 x 91 x 160)
179 (5.0)
734 (333)
123 x 37 x 64
(312 x 94 x 163)
188 (5.3)
1
439
(199)
76 x 36 x 63
(193 x 91 x 160)
100 (2.8)
556 (252)
77 x 37 x 64
(196 x 94 x 163)
106 (3.0)
MCM080
2
769
(349)
122 x 36 x 63
(310 x 91 x 160)
179 (5.0)
941 (427)
123 x 37 x 64
(312 x 94 x 163)
188 (5.3)
MCM160
4
1509
(684)
256 x 36 x 63
(650 x 91 x 160)
336 (9.5)
1834 (832)
257 x 37 x 64
(653 x 94 x 163)
352 (10)
MCL055
1
552
(250)
76 x 36 x 63
(193 x 91 x 160)
100 (2.8)
669 (303)
77 x 37 x 64
(196 x 94 x 163)
106 (3.0)
MCL110
2
962
(436)
136 x 36 x 63
(345 x 91 x 160)
179 (5.0)
1134 (514)
137 x 37 x 64
(348 x 94 x 163)
188 (5.3)
MCL165
3
1364
(619)
196 x 36 x 63
(498 x 91 x 160)
257 (7.3)
1619 (734)
197 x 37 x 64
(500 x 94 x 163)
270 (7.7)
MCL220
4
1835
(832)
256 x 36 x 63
(650 x 91 x 160)
336 (9.5)
2160 (980)
257 x 37 x 64
(653 x 94 x 163)
352 (10)
1. Packaged weights will increase with factory options, such as legs taller than 18" (457mm), coated coils and seismic options.
See Tables 12,and 13 for option weights to add to the packaged weights above. Consult factory for additional information.
2. Receivers and 60" legs are shipped separately from the condenser.
9
Liebert® DSE™
Air-Cooled Performance Data
Table 12
Liebert MCM condenser and option net weights
Condenser Model
MCM160
Refrigeration Circuits
Condenser Dry
Weight, lb (kg)
2
18" Leg
860 (390)
36" Leg
1066 (484)
48" Leg
1114 (505)
60" Leg
1160 (526)
Additional Weight for Options, lb (kg)
Liebert DSE Receiver DA080/085
88 (40)
Liebert DSE Receiver DA125/150/165
184 (83)
Coated Coil
20 (9)
1. Total weight is the sum of condenser weight + receiver weight ( Liebert DSE receiver) + coated coil weight.
2. Source: DPN003034, Rev. 0
Table 13
Liebert MCL condenser and option net weights
Condenser Model
Refrigeration Circuits
MCL110
MCL165
MCL220
1
2
1
1
2
18" Leg
602 (273)
602 (273)
891 (404)
1186 (538)
1186 (538)
36" Leg
766 (347)
766 (347)
1136 (515)
1453 (659)
1453 (659)
48" Leg
798 (362)
798 (362)
1184 (537)
1501 (681)
1501 (681)
60" Leg
829 (376)
829 (376)
1230 (558)
1547 (702)
1547 (702)
Liebert DSE Receiver DA080/085
45 (20)
90 (41)
—
45 (20)
90 (41)
Liebert DSE Receiver DA125/150/165
94 (43)
188 (85)
94 (43)
94 (43)
188 (85)
Coated Coil
16 (7)
16 (7)
24 (11)
32 (15)
32 (15)
Condenser Dry
Weight, lb (kg)
Additional Weight for Options, lb (kg)
1. Total weight is the sum of condenser weight + receiver weight (Liebert DSE receiver) + coated coil weight.
2. Source: DPN003034, Rev. 0
Liebert® DSE™
10
Dimensions and Equipment Layout
3.0
DIMENSIONS AND EQUIPMENT LAYOUT
Figure 3
Cabinet and floor planning dimensions—Downflow, air-cooled, DA080, DA085, scroll and digital
scroll compressor models
Secondary Refrigerant
Piping Entrance
80" (2032mm)
Opening
33"
(838mm)
35"
(889mm)
24-5/8"
(625mm)
Opening
AIR INLET OPENING
Notes
1. Filters are accessible
through top of unit only.
2. Downflow electrical
connections can be made
from top or bottom of unit.
5/16"
(8mm) Bezel
Secondary Entrance
High-Voltage Connection(s)
1-3/4"
(44mm) Handle
Secondary Entrance
Low-Voltage Connections
TOP VIEW
Minimum required
for filter replacement
A
5"
(127mm)
76"
(1930mm)
2"
(51mm)
Shaded area indicates a
recommended minimum
clearance for component
access
B
DPN003138
Rev. 1
FRONT VIEW
Model No.
34"
(864mm)
DA080
DA085
Air-Cooled
2200 (998)
2250 (1021)
Dual-Cool
N/A
N/A
Air-Cooled “A”
100 (2540)
100 (2540)
Air Cooled “B”
99 (2515)
99 (2515)
Weights, lb. (kg)
Dimensions, in. (mm)
Source: DPN003138, Rev. 0
11
Liebert® DSE™
Dimensions and Equipment Layout
Figure 4
Cabinet and floor planning dimensions—Upflow, air-cooled, DA080U, DA085U, scroll and digital
scroll compressor models
Alternate Refrigerant
Piping Entrance
33"
(838mm)
35"
(883mm)
High-Voltage Connection(s)
3-1/4"
(81mm)
3/4"
(19mm)
Bezels
TOP VIEW
Minimum required
for blower replacement
Low-Voltage Connection(s)
100"
(2539mm)
24"
(610mm)
76"
(1929mm)
2"
(50mm)
34"
(864mm)
99"
(2517mm)
Shaded area indicates a
recommended minimum
clearance for
component access
FRONT VIEW
Front air return unit shown. For rear return unit,
in addition to front service area shown, also include
25" (635mm) on one side of unit for access to rear
APPROXIMATE DRY WEIGHT, lb (kg)
return filter box. See DPN001196.
DA080U - DA085U: 2150 (977)
Liebert® DSE™
12
DPN002950
Rev. 0
Dimensions and Equipment Layout
Figure 5
Cabinet and floor planning dimensions—Downflow, air-cooled, DA125, DA150 and DA165,
tandem scroll compressor models
Filter Plenum
(shipped separately)
Filters are removed though
the front of the plenum.
Secondary Refrigerant
Piping Entrance
48"
(1219mm)
117-11/16"
(2989mm) Opening
42"
(1067mm)
Opening
47"
1194mm) 45"
(1143mm)
1-3/4"
(44mm) Handle
TOP VIEW
5/16"
(8mm) Bezel
Striated area indicates
the recommended
minmum clearance for
component access.
24"
(610mm)
Shaded area indicates the required minimum clearance
below the unit to lower the fans into the floor.Fans
also remain in their shipped position if desired.
45" (1143mm)
Plenum
144" (3658mm)
18"
(457mm)
94"
(2388mm)
Total Height
76"
(1930mm)
Base Unit
1"
(25mm)
Typical
142" (3607mm)
FRONT VIEW
13
45"
(1143mm)
47"
1194mm)
Dry Weights, Approximate
DA125: 3465 lb. (1572kg)
DA150/165: 3574 lb. (1621kg)
DPN003175
Rev. 1
Liebert® DSE™
Dimensions and Equipment Layout
3.1
Floor Stand Dimensions
Figure 6
Floor stand and floor planning dimensions, DA080, DA085
99" (2515mm)
3/4"
17"
(19mm) (432mm)
Piping Access Area
31-1/2"
(800mm)
32"
(813mm)
Center Feet
3/4"
(19mm)
97-1/2" (2477")
Support Feet Centers
32-3/4"
(832mm)
See Note 4
1"
(25mm)
99" (2515mm)
3/4"
(19mm)
33" (838mm)
A*
7/8"
(23mm)
35" (889mm)
Overall Depth
3" (76mm)
100-1/2" (2553mm)
1. This floor stand should be used when EC fans are intended to be lowered under
a raised floor. The standard floor stand can be used if the fans are to remain raised.
2. Right side of paneled unit is flush with right side of floor stand. All other paneled sides
overhang floor stand 1" (25mm).
3. The floor stand used with EC units is not symmetrical and its orientation to the
Liebert DSE is critical for lowering the EC fans. Unless the floor stand is installed in
the correct position, the blowers will not lower into the floor stand.
4. Jack and jack support are shipped loose and are intended to be placed into position
under each fan and used to lower or raise that fan as needed.
*Leveling feet are provided with ±1-1/2” (38mm) adjustment from nominal height “F”.
Liebert® DSE™
14
DPN003173
Rev. 0
Height, A *
In. (mm)
24 (610)
30 (762)
36 (914)
42 (1067)
48 (1219)
Dimensions and Equipment Layout
Figure 7
Floor stand dimensions—Downflow, DA125, DA150 and DA165 models
C + 1-1/2" (38mm)
With Feet
C
D
46-1/2"
(1181mm)
43-1/2"
Outside of
(1105mm)
End Feet
Center of
Feet
47"
(1194mm)
Overall
118-1/2" (3010mm)
Center of Feet
43"
(1092mm)
59-1/4" (1505mm)
Center Feet
120-3/4" (3067mm)
Center of Feet
3/4" (19mm)
Typical
7/8"
(23mm)
Typical
1"
(25mm)
Typical
45" (1143mm)
A See
Note
6
B
3" (76mm)
Typical
47" (1194mm)
NOTES
1. This floor stand should be used when EC fans are intended to be lowered into the floor stand.
The standard Liebert floor stand can be used if the fans are to remain in their original raised position.
2. All paneled sides of unit overhang floor stand 1" (25mm).
3. The floor stand used with EC units is not symmetrical, and proper orientation required for lowering
the blowers. The blowers will not lower into the floor stand unless the floor stand is installed in the correct position.
4. The jack and jack support are shipped loose and are intended to be placed into position under each fan
and used to lower or raise that fan.
DPN003177
5. Jack to lower blowers not provided with 18" floorstand.
Rev. 2
6. Leveling feet are provided with ±1-1/2" (38mm) adjustment from nominal height “A.”
Height, in. (mm)
Dimensions, in. (mm)
A*
B*
Coolant
C
D
24 (610)
—
Air-Cooled
142 (3607)
21 (533)
30 (762)
—
Water/Glycol Cooled
164" (4166mm)
43" (1092mm)
36 (914)
5 (127)
42 (1067)
11 (279)
48 (1219)
17 (432)
1. Leveling feet have ±1-1/2" (38mm) adjustment from nominal
height “A.”
2. Source: DPN003177, Rev. 2
15
Liebert® DSE™
Piping Schematics
4.0
PIPING SCHEMATICS
Figure 8
Primary connection locations—Downflow, air-cooled DA080 and DA085, scroll compressor
models
All dimensions from
rear corner of unit
including panels
Note: Drawing not to scale.
Tolerance on
all piping dimensions
is ± 1/2" (13mm).
A
A
FRONT VIEW
X
SECTION A-A
5"
(127mm)
O
Y
R
L1 L2
G1 G2
Blower Outlet
35"
(899mm)
5"
(379mm)
LV1
ECS ECR
B1 LV2
CD
LV3
E1
E2
HUM
100" (2540mm)
FRONT OF UNIT
Point
Description
DPN002182
Rev. 3
X, in. (mm)
Y, in. (mm)
Connection Size / Opening
in. (mm)
R
Refrigerant Access
82-7/8 (2105)
13-11/1 (348)
15 x 5 (379 x127)
L1
Liquid Line System 1
94-11/16 (2405)
16-3/4 (425)
1/2" / 5/8" Cu Sweat
L2
Liquid Line System 2
91-7/8 (2334)
16-3/4 (425)
1/2" / 5/8" Cu Sweat
G1
Hot Gas Discharge 1
88-3/4 (2254)
16-3/8 (416)
7/8" / 1-1/8" Cu Sweat
G2
Hot Gas Discharge 2
85-9/16 (2173)
16-3/8 (416)
7/8" / 1-1/8" Cu Sweat
CD 1
Condensate Drain
(Infrared Humidifier or No Humidifier)
68-3/8 (1737)
31-3/8 (797)
3/4" FPT
W/ Optional Pump
68-3/8 (1737)
31-3/8 (797)
1/2" Cu Sweat
Hum
Humidifier Supply Line
76-1/2 (1943)
29 (736)
1/4" Cu Sweat
E1
Electrical Connection (High-Voltage)
78-1/2 (1994)
31-1/8 (790)
2-1/2"
E2
Electrical Connection (High-Voltage)
75-3/8 (1915)
31-1/8 (790)
2-1/2"
LV1
Electrical Connection (Low-Voltage)
2 (51)
29 (737)
7/8"
LV2
Electrical Connection (Low-Voltage)
2 (51)
30-7/8 (784)
7/8"
LV3
Electrical Connection (Low-Voltage)
2 (51)
32 (813)
7/8"
B1
Blower Outlet
4-1/2 (114)
33 (838)
58-3/8 x 30 (1483 x 762)
1. Field pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do
not trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply
with all local codes.
2. Source: DPN002182, Rev. 3
Liebert® DSE™
16
Piping Schematics
Figure 9
Primary connection locations—Downflow, air-cooled, DA125, scroll compressor models
A
A
NOTE: Drawing not to scale.
Tolerance on all piping dimensions
is ±1/2" (13mm).
FRONT VIEW
All dimensions from
rear corner of unit
including panels
SECTION A-A
X
O
3-3/8"
(86mm)
G1 G2
L1 L2
R
Y
19"
(483mm)
CD
41"
(1041mm) Typical
AIR DISCHARGE
AREA
47"
(1193mm)
29-5/16"
(744mm) Typical
AIR DISCHARGE
AREA
LV1
LV2
LV3
E1 E2 HUM
B
144" (3657mm)
FRONT EDGE OF UNIT
Opening for conduit chase, E1 and E2 are openings for conduit for connections to 2-1/2", 1-3/4" and
1-3/8" knockouts at electric panel
DX Only
Point
Description
DPN002312
Pg. 1, Rev. 4
DX with Liebert
EconoPhase™
X
inches (mm)
Y
inches (mm)
Connection Size/
Opening, inches (mm)
19 x 3-3/8 (483 x 86) 19 x 3-3/8 (483 x 86)
R
Refrigerant Access
122-5/16 (3106)
12-1/8 (333)
L1
Liquid Line System 1
127-7/8 (3248)
13-3/4 (348)
7/8 Cu Sweat
7/8 Cu Sweat
L2
Liquid Line System 2
124-13/16 (3170)
13-3/4 (348)
7/8 Cu Sweat
7/8 Cu Sweat
G1
Hot Gas Discharge 1
140 (3554)
14 (355)
1-1/8 Cu Sweat
1-3/8 Cu Sweat
G2
Hot Gas Discharge 2
136-11/16 (3471)
14 (355)
1-1/8 Cu Sweat
1-3/8 Cu Sweat
110 (2794)
35-1/16 (891)
1-1/8 FPT
1-1/8 FPT
Condensate Drain
(infrared humidifier or no humidifier)
CD 1
Condensate Drain
(steam generating humidifier)
W/ Optional Pump
HUM Humidifier Supply Line
Consult Factory
110 (2794)
35-1/16 (891)
1/2 Cu Sweat
1/2 Cu Sweat
101-1/4 (2572)
43 (1091)
1/4 Cu Sweat
1/4 Cu Sweat
HS
Hot Water Reheat Supply
Consult Factory
HR
Hot Water Reheat Return
Consult Factory
E1
Electrical Connection (High-Voltage)
113 (2870)
42-1/2 (1080)
2-1/2
2-1/2
E2
Electrical Connection (High-Voltage)
110 (2794)
42-1/2 (1080)
2-1/2
2-1/2
LV1
Electrical Connection (Low-Voltage)
2-1/2 (64)
36 (914)
7/8
7/8
LV2
Electrical Connection (Low-Voltage)
2-1/2 (64)
37-1/2 (952)
7/8
7/8
LV3
Electrical Connection (Low-Voltage)
2-1/2 (64)
39 (991)
7/8
7/8
Blower Outlet
5-1/8 (131)
44 (1117)
93 x 41 (2362 x 1041)
93 x 41 (2362 x 1041)
B
1. Field pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do
not trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply
with all local codes.
2. Source: DPN002312, Rev. 4, Pg. 1
17
Liebert® DSE™
Piping Schematics
Figure 10 Primary connection locations—Downflow, air-cooled, DA150, scroll compressor models
A
A
NOTE: Drawing not to scale.
Tolerance on all piping dimensions
is ±1/2" (13mm).
All dimensions from
rear corner of unit
including panels
X
FRONT VIEW
SECTION A-A
O
3-3/8"
(86mm)
L1 L2
G1 G2
R
Y
19"
(483mm)
CD
41"
(1041mm) Typical
AIR DISCHARGE
AREA
29-5/16"
(744mm) Typical
AIR DISCHARGE
AREA
47"
(1193mm)
LV1
LV2
LV3
E1 E2 HUM
B
144" (3657mm)
FRONT EDGE OF UNIT
Opening for conduit chase, E1 and E2 are openings for conduit for connections to 2-1/2", 1-3/4" and
1-3/8" knockouts at electric panel.
DX Only
Point
Description
DPN002312
Pg. 2, Rev. 4
DX with Liebert
EconoPhase™
X
inches (mm)
Y
inches (mm)
Connection Size/
Opening, inches (mm)
122-5/16 (3106)
12-1/8 (333)
19 x 3-3/8 (483 x 86) 19 x 3-3/8 (483 x 86)
14 (355)
R
Refrigerant Access
L1
Liquid Line System 1
140 (3554)
1-1/8 Cu Sweat
1-1/8 Cu Sweat
L2
Liquid Line System 2
136-11/16 (3471)
14 (355)
1-1/8 Cu Sweat
1-1/8 Cu Sweat
G1
Hot Gas Discharge 1
127-7/8 (3248)
13-3/4 (348)
1-3/8 Cu Sweat
1-3/8 Cu Sweat
G2
Hot Gas Discharge 2
124-13/16 (3170)
13-3/4 (348)
1-3/8 Cu Sweat
1-3/8 Cu Sweat
110 (2794)
35-1/16 (891)
1-1/8 FPT
1-1/8 FPT
Condensate Drain
(infrared humidifier or no humidifier)
CD 1 Condensate Drain
(steam generating humidifier)
W/ Optional Pump
HUM Humidifier Supply Line
HS
Consult Factory
110 (2794)
35-1/16 (891)
1/2 Cu Sweat
1/2 Cu Sweat
101-1/4 (2572)
43 (1091)
1/4 Cu Sweat
1/4 Cu Sweat
Hot Water Reheat Supply
Consult Factory
HR
Hot Water Reheat Return
E1
Electrical Connection (High-Voltage)
113 (2870)
42-1/2 (1080)
2-1/2
2-1/2
E2
Electrical Connection (High-Voltage)
110 (2794)
42-1/2 (1080)
2-1/2
2-1/2
LV1 Electrical Connection (Low-Voltage)
2-1/2 (64)
36 (914)
7/8
7/8
LV2 Electrical Connection (Low-Voltage)
2-1/2 (64)
37-1/2 (952)
7/8
7/8
LV3 Electrical Connection (Low-Voltage)
B
Blower Outlet
Consult Factory
2-1/2 (64)
39 (991)
7/8
7/8
5-1/8 (131)
44 (1117)
93 x 41 (2362 x 1041)
93 x 41 (2362 x 1041)
1. Field pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not
trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply with all
local codes.
2. Source: DPN002312, Rev. 4, Pg. 2
Liebert® DSE™
18
Piping Schematics
Figure 11 Primary connection locations—Upflow, DA080U and DA085U
3.
NOTES
1. Drawing not to scale.
2. Tolerance on all piping dimensions
is ± 1/2" (13mm).
3. Field-routed alternatives for refrigerant
gas and liquid line connection points.
4. See submittal page DPN002748
for plenum dimensional data.
All dimensions from
rear corner of unit
including panels
15-7/16"
(392mm)
O
X
R1
4"
(102mm)
35"
(889mm)
R2
5" (127mm)
HUM
CPD
L1L2G1G2
4.
Y
14-15/16"
(379mm)
3.
LV1
LV2
LV3
E1 E2
6"
(152mm)
100" (2540mm)
TOP VIEW OF UNIT
Front of Unit
R3
17-3/16"
(437mm)
3
CGD*
3-7/8"
(98mm)
14-1/4"
(362mm)
14-1/8"
(359mm)
15-7/8"
(403mm)
L1L2G1G2
Factory
Location
CGD*
FRONT SECTION VIEW OF UNIT
(Left Front Panel Not Shown)
LEFT SIDE SECTION VIEW OF UNIT
Point
Description
R1 3
Refrigerant Access (Top)
R2 3
Refrigerant Access (Bottom)
R3 3
Refrigerant Access (Side)
DPN002951
Rev. 1
X
inches (mm)
Y
inches (mm)
Connection Size/
Opening, inches (mm)
83-5/8 (2124)
1-7/8 (48)
15-7/16 x 4 (392 x 102)
82-15/16 (2106)
13-5/8 (346)
14-15/16 x 5 (379 x 127)
—
—
6 x 17-3/16 (152 x 437)
L1
Liquid Line System 1
94-9/16 (2402)
16-3/4 (425)
5/8 Cu Sweat
L2
Liquid Line System 2
91-7/8 (2334)
16-3/4 (425)
5/8 Cu Sweat
G1
Hot Gas Discharge 1
88-7/8 (2257)
16-7/16 (418)
1-1/8 Cu Sweat
G2
Hot Gas Discharge 2
85-5/8 (2175)
16-7/16 (418)
1-1/8 Cu Sweat
—
—
3/4 FPT
CGD 1
Condensate Gravity Drain
CPD
Condensate Pump Discharge (Optional)
79-5/16 (2015)
11-7/8 (302)
1/2 Cu Sweat
HUM
Humidifier Supply Line
79-5/16 (2015)
9-7/8 (251
1/4 Cu Sweat
E1
Electrical Connection (High Voltage)
78-1/8 (1984)
30 (762)
2-1/2
E2
Electrical Connection (High Voltage)
74-3/8 (1889)
30 (762)
2-1/2
LV1
Electrical Connection (Low Voltage)
2-5/8 (66)
29-1/16 (738)
7/8
LV2
Electrical Connection (Low Voltage)
2-5/8 (66)
30-7/16 (773)
7/8
LV3
Electrical Connection (Low Voltage)
2-5/8 (66)
31-13/16 (808)
7/8
1. Field pitch condensate drain line a minimum of 1/8" (3.2mm) per foot (305mm). All units contain a factory-installed condensate trap. Do not
trap external to the unit. Drain line may contain boiling water; select appropriate drain system materials. The drain line must comply with all
local codes.
2. Source: DPN002951, Rev. 1
19
Liebert® DSE™
Piping Schematics
Figure 12 Piping schematic—Air-cooled, tandem compressor models, DA0805, DA085
Optional Liebert
EconoPhase Unit
Differential
Check Valve
1-3/8" Liquid from Condenser
See Note 2
Liebert MC Condenser
Check
Valve
7/8" Liquid to Indoor Unit
See Note 2
Liebert DSE
Receiver
Ball Valve
Includes Factory traps.
No external trap required.
Differential
Check Valve
Hot Gas
Discharge
DA080 and DA085
Solenoid
Valve
Ball
Valve
1-1/8" Hot Gas Discharge from Indoor Unit
See Note 2
LIQUID
Evaporator
Coil
Service
Valve
For rises over 25ft. (7.6m),
trap every 20ft. (6m) or
evenly divided*
SUCTION
Field-installed relief valves
required for 50Hz EU CE
units rated maximum
650PSIG (45bar)
Check
Valve
Trap at base of risers
over 5ft. (1.5m)*
*Full Ported
Ball Valve
See Note 4
Service
Valve
Check
Valve
HOT GAS DISCHARGE
See Note 2
LIQUID RETURN
See Note 2
Electronic
Expansion Valve
Refrigerant Piping
Field Piping
Service/Schrader (Access) Connection, No Valve Core
Service/Schrader (Access) Connection, With Valve Core
*Full Ported
Ball Valve
See Note 4
* Components are not supplied by
Liebert but are required for
proper circuit operation and
maintenance.
1. Two refrigeration circuits provided. Single refrigeration circuit shown for clarity.
2. Circuit 1 must be maintained between indoor unit, condenser and Liebert EconoPhase unit.
Circuit 2 must be maintained between indoor unit, condenser and Liebert EconoPhase unit.
3. Schematic representation shown. Do not use for specific connection locations.
4. Port in ball must be the same diameter as the piping I.D.
5. Length of piping between condenser and indoor unit shall be no greater than
300 ft (91.4 m) (Maximum equivalent length of 450 ft [137.2 m]).
6. Vertical height of condenser above indoor unit must be no greater than 60ft (18.3m).
7. All indoor and outdoor field refrigerant piping must be insulated,
1/2" minimum thickness. All outdoor insulation must be UV- and ozone-resistant.
Liebert® DSE™
20
Differential
Check Valve
(Required)
DPN002615
Rev. 4
Piping Schematics
Figure 13 Piping schematic—Air-cooled, tandem compressor models, DA125, DA150 and DA165
Liebert DSE
Receiver
Ball
Valve
Includes Factory Traps
No External Trap Required
DA125: 7/8"
DA150: 7/8" or 1-1/8"
Liquid to Indoor Unit
Depending on length of line
See Note 2
Check
Valve
1-3/8" Liquid Line from Condenser
See Note 2.
Liebert MC Condenser
Differential
Check Valve
Optional EconoPhase
Unit
Differential
Check Valve
1-3/8" Hot Gas Discharge
from Indoor Unit
See Note 2.
Hot Gas
Discharge
DA125 and DA150
Solenoid Ball
Valve
Valve
Liquid
Evaporator
Coil
Service
Valve
For rises over 25ft.
(7.6m), trap every
20ft. (6m) or
evenly divided
Suction
Field-installed relief valves
required for 50Hz EU CE
units rated maximum
650 PSIG (45 Bar)
Check
Valve
* Trap at Base
of Risers Over
5ft. (1.5m)
*Full Ported
Ball Valve
See Note 4.
Check
Valve
Hot Gas Discharge
See Note 2.
Liquid Return
See Note 2.
Electronic
Expansion Valve
Refrigerant Piping
Field Piping
Service/Schrader (Access) Connection, No Valve Core
Service/Schrader (Access) Connection, With Valve Core
Differential
Check Valve
(Required)
* Components are not supplied by
Emerson but are required for
proper circuit operation and
maintenance.
1. Two refrigeration circuits provided. Single refrigeration circuit shown for clarity.
2. Circuit 1 must be maintained between indoor unit, condenser and EconoPhase unit.
Circuit 2 must be maintained between indoor unit, condenser and EconoPhase unit.
3. Schematic representation shown. Do not use for specific connection locations.
4. Port in ball must be the same diameter as the piping I.D.
5. Length of piping between condenser and indoor unit must be no greater than
300 ft (91.4 m) [Maximum equivalent length of 450 ft (137.2 m)].
6. Vertical height of condenser above indoor unit shall be no greater than 60ft (18.3m).
7. All indoor and outdoor field refrigerant piping must be insulated,
1/2" minimum thickness. All outdoor insulation must be UV- and ozone-resistant
21
*Full Ported
Ball Valve
See Note 4.
DPN002340
Rev. 8
Liebert® DSE™
Condensers—Dimensions
5.0
CONDENSERS—DIMENSIONS
Figure 14 Cabinet and anchor dimensions, MCM160
Emerson recommends a clearance of
36" (915mm) on each side for proper
operation and component access
Height to Top
of Fan Guard
Eyebolts for Lifting Condenser
Provided on Four-Fan Models
H
G
A*
A
B
F
575V Transformer
Enclosure Option
13/16"
(21mm)
2-1/2"
(64mm)
C
1-7/8" (48mm)
2-1/2"
(64mm)
46"
(1168mm)
3-5/8"
(93mm)
1/2" x 1"
12.7mm x 25.4mm)
Obround
1-7/8"
(48mm)
TYPICAL FOOTPRINT
ANCHOR PLAN
E
Electric Box End
D
Provided On
Four-Fan-models
39-5/16"
999mm)
44-3/8"
(1127mm)
DPN002172
Rev. 5
A
Liebert
No.
Model No. Fans in. (mm)
MCM160
4
202-7/16
(5142)
A* (575V)
B
C
D
E
G
H
in. (mm)
in. (mm) in. (mm) in. (mm) in. (mm)
in. (mm)
210-5/8
(5350)
113-1/2
(2883)
18 (457)
31-5/8
(803)
39-5/8
(1006)
36 (914)
49-5/8
(1260)
57-5/8
(1464)
48 (1219)
61-5/8
(1565)
69-5/8
(1768)
60 (1524)
73-5/8
(1870)
81-5/8
(2073)
192-1/4
(4883)
94-7/16
(2398)
96-3/16
(2444)
1. Cross-bracing required for legs longer than 18" (457mm). Quantity varies according to the
model and options selected.
2. Source: DPN002172, Rev. 5
Liebert® DSE™
Leg
Height
F1
22
in. (mm) in. (mm)
Condensers—Dimensions
Figure 15 Liebert MC™ cabinet and anchor dimensions, MCL110, MCL165 and MCL220
Height to
Top of Fan
Guard
Emerson recommends a clearance of
36" (915mm) on each side for proper
operation and component access
Eyebolts for Lifting
Condenser Provided
on 3&4 Fan Models
H
G
A*
A
B
F
575V Transformer
Enclosure Option
13/16"
(21mm)
3-5/8"
(93mm)
2-1/2"
(64mm)
C
1-7/8" (48mm)
2-1/2"
(64mm)
1/2"x1"
(12.7mm x 25.4mm)
Obround
3-5/8"
(93mm)
55-1/2"
(1409mm
1-7/8" (48mm)
TYPICAL FOOTPRINT
ANCHOR PLAN
E
Electric Box End
D
Provided on
3- and 4-Fan Models
53-7/8"
(1368mm)
48-3/4"
(1238mm)
DPN002416
Rev. 4
Table 14
Cabinet and anchor dimensions, MCL110, MCL165 and MCL220
Dimensions, In. (mm)
Liebert
Model #
# of
Fans
MCL055
A
A*
(575V)
1
68
(1727
MCL110
2
MCL165
MCL220
Leg
Height
F1
G
H
B
C
D
E
76-1/8
(1935)
—
56
(1423)
54-3/8
(1381)
—
18
(457)
35-7/8
(911)
43-5/8
(1108)
124-1/8
(3152)
132-1/4
(3360)
—
112-1/8
(2848)
110-1/2
(2806)
—
36
(914)
53- 7/8
(1368)
61-5/8
(1565)
3
180-1/4
(4578)
188-3/8
(4786)
73-7/16
(1866)
168-1/4
(4274)
110-1/2
(2806)
56-1/8
(1425)
48
(1219)
65-7/8
(1673)
73-5/8
(1870)
4
236-5/16
(6003)
244-1/4
(6211)
129-9/16
(3291)
224-3/8
(5699)
110-1/2
(2806)
112-1/4
(2851)
60
(1524)
77-7/8
(1978)
85-5/8
(2175)
1. *Cross-bracing required for legs longer than 18" (457mm). Quantity varies per model and options selected.
2. Source: DPN002416, Rev. 4
23
Liebert® DSE™
Condensers—Dimensions
Figure 16 Typical receiver mounting MCL110, MCL165, MCL220 units, left-side mounting outlet receiver
Receiver Mounting
Holes
Single Circuit
DETAIL A
Typically 4 Places
4, 3, 2
Trim piping
as needed
1 16 15
3
A
1
7
13 12
14
2
8
11.13" (282.6mm)
3
Notes
64.3"
(1383.1mm)
36"
(914.4mm)
Clearance required for
viewing sight glass
Cross-Bracing
Not Shown
1. Use Items 15 and 16 as needed
for mounting Item 1.
2. Item 12 to be used on MCL165 units.
Item 13 to be used on MCL220 units.
3. Small receiver shown. Actual receiver
DPN002554
Pg. 1, Rev. 4
size may vary.
1
Receiver and Bracket Assembly
1
2
Cap Screw HXDIN933M8-1.25x25A2
8
3
Fender Washer DIN9021 M8x24 A2
12
4
Lock Nut, Hex Nylon Insert, M8
8
7
90-degree Elbow FTGXC 7/8" Copper
1
8
Copper Formed Tube 1-1/8"
1
12
Coupling, Copper 1-1/8"
1
13
Reducer, Copper CXC 1-3/8" x 1-1/8"
1
14
Reducer, Copper CXC 1-1/8" x 7/8"
1
15
Support Leg
1
16
Fastener Assembly: Cap Screw, Lock Washer, Fender Washer
4
Source: DPN002554, Page 1, Rev. 4
Liebert® DSE™
24
Condensers—Dimensions
Figure 17 Typical receiver mounting MCL110, MCL165, MCL220 units, right-side mounting outlet receiver
Receiver Mounting
Holes
Single Circuit
Trim piping
as needed
12 13
2
DETAIL B
Typ. 4 Places
4, 3, 2
8
B
7
15 16 1
14
9
1
3
5 6
11.13" (282.6mm)
3
64.3"
(1383.1mm)
36"
(914.4mm)
Clearance required for
viewing sight glass
Cross-Bracing
Not Shown
Notes
1.
Use Items 15 and 16 as needed
for mounting Item 1.
2.
Item 12 to be used on MCL165 units.
Item 13 to be used on MCL220 units.
3.
Small receiver shown. Actual receiver
size may vary.
DPN002554
Pg. 2, Rev. 4
Item #
Description
Quantity
1
2
3
4
5
6
7
8
9
12
13
14
15
16
Receiver and Bracket Assembly
Cap Screw HXDIN933M8-1.25x25A2
Fender Washer DIN9021 M8x24 A2
Lock Nut, Hex, Nylon Insert, M8
Clamp Omega 1-1/8"
Screw, Self-Drilling, HWH YZ 10-16 x 5/8"
90-degree Elbow FTGXFTG 7/8" Copper
Copper Formed Tube 1-1/8"
Copper Formed Tube 1-1/8"
Coupling, Copper 1-1/8"
Reducer, Copper CXC 1-3/8" x 1-1/8"
Reducer, Copper CXC 1-1/8" x 7/8"
Support Leg
Fastener Assembly: Cap Screw, Lock Washer, Fender Washer
1
8
12
8
7
2
1
1
2
1
1
2
1
4
Source: DPN002554, Page 2, Rev. 4
25
Liebert® DSE™
Condensers—Dimensions
Figure 18 Required receiver mounting MCM160 units, left-side mounting outlet receiver
Receiver mounting holes
Single circuit
DETAIL A
Typically
4 Places
2
34
15
16
1
1
A
7
Trim piping
as needed
8
11.23" (285.3mm)
1
1. Small receiver shown.
Actual receiver size may vary
36"
(914.4mm)
Clearance required for
viewing sight glass
54.45"
(1383.1mm)
Cross Bracing
Not Shown
DPN002383
Pg. 1, Rev. 5
Item #
Description
Quantity
1
Receiver and Bracket Assembly
1
2
Cap Screw HXDIN933M8-1.25x25A2
8
3
Fender Washer DIN9021 M8x24 A2
12
4
Lock Nut, Hex Nylon Insert, M8
8
7
90-degree Elbow FTGXC 7/8" Copper
2
8
Copper Formed Tube 7/8"
1
15
Support Leg
1
16
Fastener Assembly: Cap Screw, Lock Washer, Fender Washer
4
Source: DPN002383, Page 1, Rev. 5
Liebert® DSE™
26
Condensers—Dimensions
Figure 19 Required receiver mounting MCM160 units, right-side mounting outlet receiver
Receiver Mounting
Holes
Single circuit
DETAIL A
Trim Piping
As Needed
8
A
3 Typically 4 Places
24
15
16
7
56
9
1 1
11.23" (285.3mm)
1
54.49"
(1384.1mm)
36"
(914.4mm)
Clearance required for
viewing sight glass
Cross Bracing
Not Shown
1. Small receiver shown.
Actual receiver size may vary
DPN002383
Pg. 2, Rev. 5
Item #
Description
Quantity
1
Receiver and Bracket Assembly
1
2
Cap Screw HXDIN933M8-1.25x25A22
8
3
Fender Washer DIN9021 M8x24 A2
12
4
Lock Nut, Hex Nylon Insert, M8
8
5
Clamp Omega 7/8"
1
6
Screw, Self-Drilling, HWH YZ 10-16 x 5/8"
2
7
90-degree Elbow FTGXC 7/8" Copper
1
8
Copper Formed Tube 7/8"
1
9
Copper Formed Tube 7/8"
1
15
Support Leg
1
16
Fastener assembly: Cap Screw, Lock Washer, Fender Washer
4
Source: DPN002383, Page 2, Rev. 5
27
Liebert® DSE™
Plenum Dimensions
6.0
PLENUM DIMENSIONS
Figure 20 Plenum dimensions—Downflow, DA080 and DA085
80-1/2" (2045mm)
Height,
A*
in. (mm)
20 (508)
24 (610)
7/8"
(22mm) Typical
36 (914)
34"
(864mm)
Plenum
Return air
inlet opening
32-1/8"
(816mm)
Opening
82-1/4" (2089mm)
Hinged door
for filter access
12" A
(305mm)
1"
(25mm)
76"
(1930mm)
Liebert
DSE
Typical 53-77kW (15-22 Tons) unit orientation shown. View varies by unit size
Liebert® DSE™
28
DPN003151
Pg. 2, Rev. 0
Plenum Dimensions
6.1
Outdoor Equipment Dimensions
Figure 21 Plenum dimensions—Upflow, DA080U and DA085U, EC fans
32"
(813mm)
Plenum Height * (Supply Air)
Grille & Top Discharge
Top Discharge Only
Top Discharge Only
24" (610mm)
30" (762mm)
36" (914mm)
8
(2
1"
05
7m
0.88"
(22.2mm)
3
m)
20"
(508mm)
4" (102mm)
2
1"
(25mm)
Plenum
Height *
Both top duct opening
and grilles shown. See
specification sheet
for specific
application.
34"
(864mm)
0.88"
(22.2mm)
"
3
(20
"
8
(20
80
82
2m
3m
m)
m)
1"
(25mm)
1
NOTES
1. Shaded areas indicate a recommended minimum clearance
of 36" (914mm) from the floor to the top of the plenum.
2. Must have access to remove the front grille or panel to remove EC fans.
3. Top duct flanges on plenum top for supply air ducting when
solid panel plenum is used.
29
DPN003453
Rev. 0
Liebert® DSE™
Plenum Dimensions
Figure 22 Liebert EconoPhase™ pump box dimensions, typical
Electric Box
End of Unit
42" (1067mm)
Minimum
Clearance
Pump Access
Typical Both
Sides
36"
(914mm)
Minimum
Clearance
21-3/8"
(543mm)
4-13/16"
(122mm)
36-15/16"
(939mm)
36"
(914mm)
Minimum
Clearance
B
ISOMETRIC VIEW
1-3/8" Liquid Line
from Condenser
System
Circuit 2
Liquid In
System
Circuit 1
Liquid In
System
Circuit 2
Liquid Out
System
Circuit 1
Liquid Out
42-1/8" (1071mm)
40-1/8"
(1019mm)
Ø 7/16" (11mm)
typical 8 places
for unit mounting
9-3/8"
(238mm)
4-13/16"
(123mm)
7/8" Liquid to
Indoor Unit
21-5/16"
(541mm)
40-11/16" (1033mm)
LEFT SIDE VIEW
DETAIL B
40"
(1016mm)
REAR VIEW
(PIPING END)
36-3/16"(919mm)
Ø 7/16" (11mm)
Typical 8 Places
for unit mounting
Unit Voltage
208/230, 460V 60Hz
380/400, 575V 60Hz
415V, 50Hz
Approximate
Weight, lb (kg)
340 (154)
390 (177)
347 (157)
39-3/8"
(1000mm)
2-15/16"
5/8"
(56mm)
12-15/16"
(16mm)
(328mm)
22-15/16"
(582mm)
32-15/16"
(836mm)
35-7/8"
(911mm)
35-7/8" (911mm)
A
FRONT VIEW
Liebert® DSE™
DPN002326
Rev. 4
A
30
SECTION A-A
Plenum Dimensions
Figure 23 Condenser and Liebert EconoPhase™ unit locations, typical unit arrangement diagram layout
Top View
Circuit 1
Circuit 2
Air-Cooled Condenser
Entering Hot Gas Line
CIRCUIT 1
Top View
Air-Cooled Condenser
42" (1067mm)
Minimum
Clearance
Entering Hot Gas Line
Liquid Line
to Liebert
EconoPhase
from Bottom of
Receiver
CIRCUIT 2
*Liquid line from
Condenser 1-3/8".
Do Not Trap Line
Slope toward Liebert
EconoPhase unit
2 in. per 10 ft. (50.8mm per 3m).
EconoPhase Unit
* Liquid from Condenser 1-3/8"
Do Not Trap Line
Slope toward Liebert
EconoPhase unit
2 in. per 10 ft. (50.8mm per 3m).
* Liquid from Condenser 1-3/8"
Do Not Trap Line
Slope toward Liebert
EconoPhase unit
2 in. per 10 ft. (50.8mm per 3m).
CIRCUIT 1 CIRCUIT 2
60"
(1524mm)
60" (1524mm)
leg height
Typical; see Note 1.
Factory-Supplied, Field-Installed
Field Piping
Notes:
1. For proper pump function, a minimum elevation difference of 60" (1524 mm)
must be maintained between the bottom of condenser box to the bottom
of Liebert EconoPhase unit.
2. All indoor and outdoor field refrigerant piping must be insulated, 1/2" minimum.
All outdoor insulation must be UV- and ozone-resistant.
31
*Components are not supplied by
Liebert but are recommended
for proper circuit operation and
maintenance.
**Components supplied by Liebert
and must be field-installed.
DPN002324
Rev. 5
Liebert® DSE™
Disassembly
7.0
DISASSEMBLY
Figure 24 Liebert DSE disassembly downflow air-cooled DA080, DA085 with EC fans
Filter and Electric Box Assembly
39"
(991mm)
Forward curved
blowers shown.
Liebert DSE units only
available with EC fans.
Compressor Assembly
76"
(1930mm)
Assembled
Height
Blower and Coil Assembly
76"
(1930mm)
59-7/16"
(1509mm)
37"
(940mm)
33"
(838mm)
17"
(432mm)
82" (2083mm)
99" (2515mm)
Assembled Length
Drawing simplified with panels removed to show overall dimensions.
See disassembly and handling instructions in installation manual.
Table 15
Dry weights, DA080/085 including panels
Component
Weight, lb. (kg)
Compressor Assembly
590 (269)
Filter and Electric Box Assembly
250 (114)
Blower and Coil Assembly
1410 (641)
Source: DPN003140, Rev. 0
Liebert® DSE™
32
DPN003140
Rev. 0
Disassembly
Figure 25 Liebert DSE disassembly dimensions, downflow air-cooled DA125 and DA150 models
Filter Assembly
18"
(457mm)
Electric Box Assembly
40-11/16"
(1034mm)
Compressor Assembly
94"
(2388mm)
Assembled
Height
Blower and Coil Assembly
74-3/16"
(1884mm)
76"
(1930mm)
35"
(889mm)
45"
(1143mm)
22"
(558mm)
120" (3048mm)
142" (3607mm)
Assembled Length
Drawing views are simplified with panels removed to show overall dimensions.
See disassembly and handling instructions in installation manual.
Table 16
DPN003178
Rev. 0
Dry weights, DA125, DA150, including panels
Dry Weight, lb. (kg)
Component
DA125
DA150
Compressor Assembly
630 (286)
739 (335)
Electric Box Assembly
417 (189)
417 (189
2218 (1006)
2218 (1006)
200 (91)
200 (91)
Blower and Coil Assembly
Filter Assembly
Source: DPN003178, Rev. 0
33
Liebert® DSE™
Disassembly
Figure 26 Liebert DSE disassembly dimensions, upflow air-cooled DA080U-DA085U
Blower and Electric
Box Assembly
31-1/4"
(794mm)
Drawing views are simplified with panels
removed to show overall dimensions.
See disassembly and handling instructions
in installation manual.
Compressor Assembly
Filter and Coil Assembly
76"
1930mm)
Assembled
Height
76"
(1930mm)
45-13/16"
(1163mm)
33"
(838mm)
Table 17
17"
(432mm)
82" (2083mm)
99" (2515mm)
Assembled Length
DA080U-DA085U dry weight including panels)
Weight, lb. (kg)
Component
Compressor Assembly
Blower and Electric Box Assembly (EC
Filter and Coil Assembly
590 (269)
Fans) 1
600 (272)
960 (436)
1. Fan weight not included in this unit weight. Fan is installed in plenum.
See 313221 for plenum weight.
2. Source: DPN003166, Rev. 0
Liebert® DSE™
34
DPN003166
Rev. 0
Electrical Connections
8.0
ELECTRICAL CONNECTIONS
Figure 27 Electrical field connections, Liebert MC™, Premium Efficiency Control
Fan 2
Fan 1
1
5A
5B
6
4
7
2
5C
11
Left
Knockout
3
Right Two
Knockouts
8
10
SH
12
9
13
70
71
230
35
Liebert® DSE™
Electrical Connections
8.1
Standard Electrical Connections—Liebert MC
(Source: DPN002169, Rev. 7, Page 1)
1. Three-Phase Electrical Service—Terminals are on top of the disconnect switch for one- and
two-fan units. Terminals are on the bottom for the disconnect switch for three- and four-fan units.
Three-phase service is not provided by Emerson (See Note 5 on page 38.)
2. Earth Ground—A field lug terminal is available for earth ground connection. Ground the
terminal strip to make a fan motor ground connection.
3. Primary High Voltage Entrance—Two knockouts, each 7/8" (22.2mm) diameter, at the bottom
of the enclosure.
4. Surge Protection Device (SPD) Field Connection Terminals—High-voltage surge
protective device terminals. (SPD is optional.)
5. CANbus Terminal Connections—Terminals for field CANbus cable connection.
a. 5A is the CANbus connectors
• TB49-1 is the input terminal for CANbus high.
• TB49-3 is the input terminal for CANbus low.
• TB50-1 is the output terminal for CANbus high.
• TB50-3 is the output terminal for CANbus low.
• Each CANbus cable shield is connected to Terminal SH, (see Item 9).
b. 5B is the END OF LINE jumper
c. 5C is the CANbus device address DIP switch. This CANbus cable is not supplied by Emerson
(see Note 2 on page 38).
6. Remote Unit Shutdown—Replace existing jumper between Terminals TB38-1 and TB38-2 with
field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied
Class 1 wiring. (This is an optional feature that may be owner-specified.)
7. Alarm Terminal Connections
a. The Common Alarm Relay indicates when any type of alarm occurs. TB74-1 is common;
TB74-2 is normally open; and TB74-3 is normally closed. 1A, 24VAC is the maximum load.
Use field-supplied Class 1 wiring.
b. The Shutdown Alarm Relay indicates when a condenser loses power or when a critical
alarm has occured that shuts down the condenser. TB74-4 is common; TB74-5 is normally
open; and TB74-6 is normally closed. 1A, 24VAC is the maximum load. Use field-supplied
Class 1 wiring.
8. Indoor Unit Interlock and SPD Alarm Terminals
a. On any call for compressor operation, normally open contact is closed across Terminals 70 and
71 for Circuit 1; and from an indoor unit, normally open contact is closed across Terminals 70
and 230 for Circuit 2.
b. During an SPD alarm, the normally open contact is closed across Terminals 12 and 13. (SPD
is an optional device.)
9. CANbus Shield Terminal—This terminal is for the field connection of the field-supplied
CANbus cables. The shield of the field-supplied CANbus cables must not be connected to ground.
10. Primary Low-Voltage Entrance—One knockout, 7/8" (22mm) diameter, free for customer
low-voltage wiring.
11. Surge Protection Device Entrance—One knockout, 7/8" (22mm) diameter, at the bottom of
the enclosure. (High-voltage SPD is an optional device.)
Liebert® DSE™
36
Electrical Connections
8.2
Notes on Electrical Connections—Liebert MC
(Source: DPN002169, Rev. 7, Pages 2-3)
1.
2.
•
•
•
•
•
•
•
•
•
3.
4.
5.
6.
7.
8.
9.
Refer to specification sheet for the unit voltage rating, full load amp and wire size amp ratings.
The CANbus wiring is field-supplied and must be:
Conductors 22-18AWG stranded tinned copper
Twisted pair, minimum four twists per foot (305mm)
Braided shield or foil shield with drain wire
Shield must be wired to ground at the indoor unit
Low capacitance (15pF/FT or less)
UL-approved temperature rated to 167°F (75°C)
UL-approved voltage rated to 300V
UV-resistant and moisture-resistant if not run in conduit
Plenum-rated NEC-type CMP, if required by national or local codes
Examples: Belden 89207 (plenum-rated) or Alpha Wire 6454 (UV resistant outdoor rated)
Category 5, 5e or higher
Do not run the CANbus cable in the same conduit, raceway or chase as high-voltage wiring.
No special considerations are required when the total external cable connection between the
indoor unit and outdoor unit(s) is less than 450 ft. (137m). A CANbus isolator is required for total
external cable connections greater than 450 ft. (137m) but less than 800 ft. (243m).
All wiring must be sized and selected for insulation case per National Electrical Code and other
local electrical codes.
Do not bend cables to less than four times the diameter of the cable.
Do not deform cables when securing them in bundles or when hanging them.
Do not run cables near devices that may introduce noise, such as machines, fluorescent lights and
electronics.
Do not stretch cables.
NOTICE
Risk of CANbus communication interference. Can cause improper operation.
Separate high voltage wires and other high voltage sources from CAN wires by 12 inches
(305mm).
8.2.1
Wye- vs. Delta-Connected Power Supply
Figure 28 Wye- vs. delta-connected power supply connection diagram
Wye-Connected Power Diagram
Delta-Connected Power Diagram
Phase A
Phase A
Phase B
Winding
A-B
Winding
C-A
Phase B
Winding B-C
Phase C
Phase C
Ground
37
Liebert® DSE™
Electrical Connections
NOTICE
Risk of improper input power. Can cause equipment damage.
The Liebert MC is designed to operate with wye-connected power with a solidly grounded
neutral. It will not operate properly with wye-connected power with high-resistance (or
impedance) ground or with delta-connected power
NOTE
A separate neutral wire does not need to be run to the Liebert MC.
Acceptable Power Supplies for Liebert MC—208 to 575V Nominal Units
Source: DPN002374, Pg. 3, Rev. 6
•
•
•
•
208V wye with solidly grounded neutral and 120V line-to-ground
380V wye with solidly grounded neutral and 220V line-to-ground
480V wye with solidly grounded neutral and 277V line-to-ground
575V wye with solidly grounded neutral and 332V line-to-ground (with step-down transformer)
Unacceptable Power Supplies for Liebert MC—480V Nominal Units
Source: DPN002374, Pg. 3, Rev. 6
•
•
•
•
Wye with high-resistance (or impedance) ground
Delta without ground or with floating ground
Delta with corner ground
Delta with grounded center tap
Liebert® DSE™
38
Electrical Connections
Figure 29 Liebert EconoPhase™ pump box field electrical connections
Field Connection From
Condenser CANbus.
Wire Per Local Codes
Field Ground Connection.
Wire Per Local Codes
Field High Voltage
Connection.
Wire Per Local Codes.
Optional Low-Voltage
Field Wiring Connection
7/8" Knockout
Optional High
Voltage
Field Wiring
Connection
2" Knockout Optional LowVoltage Field
Optional HighWiring Connections
Voltage Field
FRONT Wiring Connection
7/8" Knockout
VIEW
1-18" Knockout
DPN002327
Rev. 5
Optional High-Voltage
Field Wiring Connections
1-1/8" Knockouts
Input Voltage
Full Load Amps, FLA
Minimum Supply Circuit Ampacity
Maximum Fuse Size
208/230, 60Hz
380 */400, 60Hz
460, 60Hz
575, 60Hz
415, 50Hz
13.8
8.4
7.0
5.6
7.4
15.5
9.4
7.9
6.3
8.3
20.0
15.0
15.0
15.0
15.0
Source: DPN002327, Rev. 5
39
Liebert® DSE™
Electrical Connections
Figure 30 CANbus cable connections between indoor unit, Liebert MC™ and optional Liebert
EconoPhase™ unit
Factory wiring between control
boards and terminal strip
EconoPhase EconoPhase
Control Board Control Board
Dual Circuit
Single Circuit
(Factory Set) (Factory Set)
CIRCUIT ONE
CIRCUIT ONE
1
1
J6
4
J6
3
3
49-1 CANbus
49-3 Connections
ON
ON
CAN SW6
CAN SW6
No Shield
Connection
CIRCUIT TWO
1
J6
3
DETAIL 4
CAN Cable Connection
P80
CAN L
TB50
P15
H
3
J4
TB49
L
CONDENSER 2
3
3
1
2
3
C
J6
J6
1
TB49
ON
1
INPUT
CONDENSER 2
CONDENSER 2
D58
L
CAN H
Two
Two Condensers
Condensers With EconoPhase
1
1
Last Device on CANbus
(If Present)
1
1
2
3
A
1
OUTPUT
1
1
11
B
H
TB50
Liebert EconoPhase
ON
CAN SW6
ON
3
J6
CAN SW6
CAN SW6
TB50
BOOTPSWD SYS APP
CONDENSER 1
CONDENSER 1
OUT
PU
T
1
2
3
CA
NH
CA
NL
TB49
1
INPUT 2
3
1
1
J6
3
J6
3
3
ON
ON
ON
CAN SW6
CAN SW6
DETAIL 3
CAN Cable Connection
CAN SW6
CONDENSER 2
SH
Low-voltage field entrance
on bottom left of
Condenser 2 enclosure
70
71
230
Factory wiring
between Liebert MC
control board
and terminal strip
H
CONDENSER 1
TB50
OU
TP
UT
1
2
3
CA
NH
CAN
L
TB49
INPU
T
1
2
3
B G
3
CONDENSER 1
SH
Low-voltage field entrance
on bottom left of
Condenser 1 enclosure
70
71
230
Factory wiring between
Liebert MC control board
and terminal strip
Remove Jumper
F
HEAT REJECTION INTERLOCK
Component Notes:
DETAIL 2
1. Component appearance, orientation and position may vary
between product lines. Terminal names and callouts remain constant.
Heat Rejection Interlock
Cable Notes (A, B, C):
1. Field-supplied cable:
● shielded
70 71 230
● 24-18AWG stranded tinned copper
● twisted pair (minimum 8 twists per foot)
● low capacitance (15pF/ft or less)
● must be rated to meet local codes and conditions.
Shield
● examples Belden 89207 (plenum-rated), or Alpha
Connection
Wire 6454 Category 5, 5e or higher.
2. Do not run in same conduit, raceway or chase as highvoltage wiring.
3. Contact factory for CANbus network lengths greater
SH
than 350ft (107m).
Wire Notes (F, G,H):
49-1
1. Field-supplied wire:
49-3
● 18AWG or greater
● rated 600V
2. For single-circuit systems, run two wires from indoor
unit to condenser(s).
3. For dual-circuit systems, run three wires from the indoor
DETAIL 1 CAN Cable Connection
unit to first condenser and one wire from first condenser
Factory Wiring Between Liebert iCOM
to second condenser (if present).
A
24
51
38
50
55
56
230
70
71
237
1
INDOOR UNIT
and Terminal Strip
DPN002361
Rev. 4
Liebert® DSE™
40
Electrical Connections
8.3
Standard Electrical Field Connections, DA080 and DA085 Upflow and Downflow
Source: DPN000807, Revision 12; refer to Figures 31 and 32
1. Primary High-Voltage Entrance—Concentric knockouts, 2.5" (64mm); 1.75" (44mm); 1.375"
(35mm) diameter in bottom of box.
2. Secondary High-Voltage Entrance—Concentric knockouts, 2.5" (64mm); 1.75” (44mm); 1.375"
(35mm) diameter in top of box.
3. Primary Low-Voltage Entrance—Three knockouts, each 1.375" (35mm) diameter, in bottom of
unit.
4. Secondary Low-Voltage Entrance—Three knockouts, each 1. 375" (35mm) diameter, in top of
box.
5. Three-Phase Electrical Service—Terminals are on main fuse block (disregard if unit has
optional disconnect switch). Three-phase service not by Emerson.
6. Earth Ground—Terminal for field-supplied earth grounding wire. Earth grounding required for
Liebert units.
7. Remote Unit Shutdown—Replace existing jumper between Terminals 37 and 38 with
field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied
Class 1 wiring.
8. Customer Alarm Inputs—Terminals for field-supplied, normally open contacts, having a
minimum 75VA, 24VAC rating, between Terminals 24 and 50, 51, 55, 56. Use field-supplied
Class 1 wiring. Terminal availability varies by unit options.
9. Common Alarm—On any alarm, normally open dry contact is closed across Terminals 75 and 76
for remote indication. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.
10. Heat Rejection Interlock—On any call for compressor operation, normally open dry contact is
closed across Terminals 70 and 71 (Circuit 1), 230 (Circuit 2) to heat rejection equipment. 1A,
24VAC maximum load. Use field-supplied Class 1 wiring. Three wires must connect Terminals
70, 71 and 230 of the indoor unit to Terminals 70, 71 and 230 of the Liebert MC series condenser.
Liebert DSE units must be connected to Liebert MC series condenser with premium control. The
jumper between Terminals 71 and 230 must be removed. Three wires must connect terminals 70,
71, and 230 of the indoor unit to Terminals 70, 71 and 230 of the Liebert MC series condenser.
8.4
CANbus Electrical Connections, DA080 and DA085 Upflow and Downflow
Source: DPN000807, Revision 12; refer to Figures 31 and 32
11. CANBus Connector—Terminal block with Terminals 49-1 (CAN-H) and 49-3 (CAN-L) + SH
(shield connection). The terminals are used to connect the CANBus communication cable
(provided by others) from the indoor unit to the Liebert MC – Premium Model and optional PRE
unit.
12. CANbus Cable—CANbus cable provided by others to connect to the outdoor condenser, and
optional PRE unit. No special considerations are required when the total external cable
connection between the indoor unit and outdoor unit(s) is less than 450 ft. (137m). ACANbus
isolator is required for total external cable connections greater than 450 ft. (137m) but less than
800 ft. (243m). Cable must meet the following specifications:
• Conductors—22-18AWG stranded tinned copper
• Twisted pair (minimum four twists per foot)
• Braided shield or foil shield with drain wire
• Low-capacitance—15pF/FT or less
• UL-approved temperature rated to 167°F (75°C)
• UL-approved voltage rated to 300V
• UV-resistant and moisture-resistant if not run in conduit.
• Plenum-rated—NEC type CMP (if required by national or local codes.)
Examples: Belden 89207 (plenum rated), or Alpha Wire 6454 Category 5, 5E, or higher
41
Liebert® DSE™
Electrical Connections
8.5
Optional Electrical Field Connections, DA080 and DA085 Upflow and Downflow
Source: DPN000807, Revision 12; refer to Figures 31 and 32
13. Unit Factory-Installed Disconnect Switch, Fuse Block and Main Fuses—Two types of
disconnect switches are available: non-locking and locking. The non-locking type consists of a
non-automatic molded case switch operational from the outside of the unit. Access to the
high-voltage electric panel compartment can be obtained with the switch in either the On or Off
position. The locking type is identical except that access to the high-voltage electric panel
compartment can be obtained only with the switch in the Off position. Units with fused
disconnects are provided with a defeater button that allows access to the electrical panel when
power is On. The molded case switch disconnect models contain separate main fuses. Units with
fused disconnect have main fuses within the disconnect. Only fused disconnects are used on dual
disconnect options.
14. Secondary Disconnect Switch and Earth Ground
15. Three-Phase Electrical Service—Terminals are on top of the disconnect switch. Three-phase
service not by Emerson.
16. Smoke Sensor Alarm—Factory-wired dry contacts from smoke sensor are 91-common, 92-NO,
and 93-NC. Supervised contacts, 80 and 81, open on sensor trouble indication. This smoke sensor
is not intended to function as, or replace, any room smoke detection system that may be required
by local or national codes. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.
17. Reheat and Humidifier Lockout—Remote 24VAC required at Terminals 82 and 83 for lockout
of reheat and humidifier.
18. Condensate Alarm (with condensate pump option)—On pump high water indication, normally
open dry contact is closed across Terminals 88 and 89 for remote indication. 1A, 24VAC maximum
load. Use field-supplied Class 1 wiring.
19. Remote Humidifier—On any call for humidification, normally open dry contact is closed across
Terminals 11 and 12 to signal field-supplied remote humidifier. 1A, 24VAC maximum load. Use
field-supplied Class 1 wiring.
20. Auxiliary Cool Contact—On any call for Econ-O-Coil operation, normally open dry contact is
closed across Terminals 72 and 73 on dual-cool units only. 1A, 24VAC maximum load. Use fieldsupplied Class 1 wiring.
8.6
Optional Low-Voltage Terminal Package Field Connections, DA080 and DA085
Upflow and Downflow
Source: DPN000807, Revision 12; refer to Figures 31 and 32
21. Remote Unit Shutdown—Two additional contact pairs available for unit shutdown (labeled as
37B and 38B, 37C and 38C). Replace jumpers with field-supplied normally closed switch having a
minimum 75VA, 24VAC rating. Use field-supplied Class 1 wiring.
22. Common Alarm—On any alarm, two additional normally open dry contacts are closed across
Terminals 94 and 95 and 96 and 97 for remote indication. 1A, 24VAC maximum load. Use fieldsupplied Class 1 wiring.
23. Main Fan Auxiliary Switch—On closure of main fan contactor, normally open dry contact is
closed across Terminals 84 and 85 for remote indication. 1A, 24VAC maximum load. Use
field-supplied Class 1 wiring.
24. Liebert Liqui-tect® Shutdown and Dry Contact—On Liebert Liqui-tect activation, normally
open dry contact is closed across Terminals 58 and 59 for remote indication (Liebert Liqui-tect
sensor ordered separately). 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.
NOTE
Refer to specification sheet for total unit full load amps, wire size amps and maximum
overcurrent protective device size.
Liebert® DSE™
42
Electrical Connections
Figure 31 Electrical field connections, DA080 and DA085 upflow and downflow models, single molded
case switch disconnect with main fuses
Refer to Section 8.7 through 8.9 for keys to numbered items.
2
4
SINGLE MOLDED CASE SWITCH DISCONNECT WITH MAIN FUSES
A
Liebert
IntelliSlot
Housing
B
OVERCURRENT PROTECTION DEVICES
CD
15
Alternate
Location
P64
6
CONTACTORS
60 Hz
P67
CONTACTORS, RELAYS, &
OVERLOAD PROTECTORS
13
E
1
6
5
Note: Typical orientation of components shown. Component location
varies by option and unit size.
9
16
22
3
11
19
SH
17 18
DA080/085 UPFLOW
AND DOWNFLOW
LOW-VOLTAGE SECTION
75 76 94 95 96 97 91 92 93 80 81 11 12
49-1
82 83 88 89
24 23
58 59 84 85
C
21
7
49-3
B
A
8
10
20
37C38C 37B 38B 37 38 24 50 51 55 56 70 71 230 72 73
D
12
E
Item 12 Installation Conditions
1. Follow all local installation codes.
2. Do not run CAN cables in same conduit, raceway or
chase as high-voltage wires (120-600V).
3. Separate high-voltage wires from CAN wires by 12 in. (305mm)
DPN000807
Pg. 3, Rev. 12
43
Liebert® DSE™
Electrical Connections
Figure 32 Electrical field connections, DA080 and DA085 upflow and downflow models, dual-fused
disconnect switches
Refer to Section 8.7 through 8.9 for keys to numbered items.
2
Liebert
IntelliSlot
Housing
DUAL-FUSED DISCONNECT SWITCHES
A
OVERCURRENT PROTECTION DEVICES
15
C
14
60Hz
6
15
4
B
D
Alternate
Location
P64
P67
CONTACTORS
PRIMARY
SECONDARY
13
CONTACTORS, RELAYS and
OVERLOAD PROTECTORS
E
17 18
82 83 88 89
9
22
58 59 84 85
CAUTION
75 76 94 95 96 97 91 92 93 80 81 11 12
B
21
37C38C 37B 38B
7
UPFLOW
Risk of broken or shorted low-voltage
wiring. Field-installed low-voltage wiring
must be routed with loop as shown
to allow electric box to swing.
3
20
10
8
37 38 24 50 51 55 56 70 71 230 72 73
D
C
3
19
16
A
24 23
UPFLOW AND DOWNFLOW
LOW-VOLTAGE SECTION
Typical orientation of components shown.
Component location varies by option and unit size.
6
1
A
B
C
D
49-3
49-1
SH
11
12
E
DPN000807
Pg. 4, Rev. 12
Liebert® DSE™
E
Item 12 Installation Conditions
1. Follow all local installation codes.
2. Do not run CAN cables in same conduit, raceway or
chase as high-voltage wires (120-600V).
3. Separate high-voltage from CAN wires by 12 in. (305mm)
4. Contact factory for runs greater than 350 ft. (107m).
44
Point of hinged low-voltage
electric box
UPFLOW LOW-VOLTAGE SECTION
Electrical Connections
8.7
Liebert DSE Electrical Field Connection Descriptions, DA125, DA150 and DA165
Downflow Models Standard Electrical Connections
Source: DPN002318, Revision 6 (See Figure 34 for connection locations)
1. Primary high-voltage entrance—2.50" (64mm); 1.75" (44mm); 1.375" (35mm) diameter
concentric knockouts located in bottom of box.
2. Primary low-voltage entrance—Three knockouts in bottom of unit, each 1.375" (35mm) in
diameter.
3. Three-phase electrical service—Terminals are on top of the disconnect switch. Three-phase
service not by Emerson.
4. Earth ground—Terminal for field-supplied earth grounding wire and component ground
terminal strip. Earth grounding required for Liebert units.
5. Remote unit shutdown—Replace existing jumper between Terminals 37 and 38 with
field-supplied normally closed switch having a minimum 75VA, 24VAC rating. Use field-supplied
Class 1 wiring.
6. Customer alarm inputs—Terminals for field-supplied, normally open contacts, having a
minimum 75VA, 24VAC rating, between Terminals 24 and 50, 51, 55, 56. Use field-supplied
Class 1 wiring. Terminal availability varies by unit options.
7. Common alarm—On any alarm, normally open dry contact is closed across Terminals 75 and 76
for remote indication. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.
8. Heat rejection interlock—On any call for compressor operation, normally open dry contact is
closed across Terminals 70 and 71 (Circuit 1), 230 (Circuit 2) to heat rejection equipment. 1A,
24VAC maximum load. Use field-supplied Class 1 wiring.
9. CANbus Connector—Terminal block with terminals 49-1 (CAN-H) and 49-3 (CAN-L) + SH
(shield connection). The terminals are used to connect the CANbus communication cable
(provided by others) from the indoor unit to the Liebert MC premium model and optional PRE
unit.
10. CANbus Cable—CANbus cable provided by others to connect to the outdoor condenser and
optional PRE unit. No special considerations are required when the total external cable
connection between the indoor unit and the outdoor unit(s) is less than 450ft (137m) but less than
800ft (243m), a CANbus isolator is required. Cable must meet the following specifications:
• Conductors—22-18AWG stranded, tinned copper
• Twisted pair (minimum of four twists per foot [305mm])
• Braided shield or foil shield with drain wire
• Low capacitance—15pf/ft or less
• UL approved temperature rated to 167°F (75°C)
• UL approved voltage rated to 300V
• UV- and moisture-resistant if not run in conduit.
• Plenum rated—NEC type CMP, if required by national or local codes
Examples are Belden 89207 (plenum-rated), or Alpha Wire 6454 Category 5, 5E, or higher.
8.8
Optional Electrical Connections, DA125, DA150 and DA165 Downflow Models
Source: DPN002318, Revision 6 (See Figure 34 for connection locations)
11. Factory-installed disconnect switch
12. Smoke sensor alarm—Factory-wired dry contacts from smoke sensor are 91-common, 92-NO
and 93-NC. Supervised contacts, 80 and 81, open on sensor trouble indication. This smoke sensor
is not intended to function as or replace any room smoke detection system that may be required
by local or national codes. 1A, 24VAC maximum load. Use field-supplied Class 1 wiring.
13. Reheat and humidifier lockout—Remote 24VAC required at Terminals 82 and 83 for lockout
of reheat and humidifier.
14. Condensate alarm (with condensate pump option)—On pump high water indication, normally
open dry contact is closed across Terminals 88 and 89 for remote indication. 1A, 24VAC maximum
load. Use field-supplied Class 1 wiring.
15. Remote humidifier—On any call for humidification, normally open dry contact is closed across
Terminals 11 and 12 to signal field-supplied remote humidifier. 1A, 24VAC maximum load. Use
field-supplied Class 1 wiring.
45
Liebert® DSE™
Electrical Connections
8.9
Optional Low-Voltage Terminal Package Connections, DA125, DA150 and DA165
Downflow Models
Source: DPN002318, Revision 6 (See Figure 34 for connection locations)
16. Remote unit shutdown—Two additional contact pairs available for unit shutdown (labeled as
37B and 38B, 37C and 38C). Replace jumpers with field-supplied normally closed switch having a
minimum rating of 75VA, 24VAC. Use field-supplied Class 1 wiring.
17. Common alarm—On any alarm, two additional normally open dry contacts are closed across
Terminals 94 and 95 and 96 and 97 for remote indication. 1 amp, 24VAC maximum load. Use
field-supplied Class 1 wiring.
18. Main fan auxiliary switch—On closure of main fan contactor, normally open dry contact is
closed across Terminals 84 and 85 for remote indication. 1 amp, 24VAC maximum load. Use
field-supplied Class 1 wiring.
19. Liebert Liqui-tect® shutdown and dry contact—On Liebert Liqui-tect activation, normally
open dry contact is closed across Terminals 58 and 59 for remote indication (Liebert Liqui-tect
sensor ordered separately). 1 amp, 24VAC maximum load. Use field-supplied Class 1 wiring
NOTE
Refer to specification sheet for total unit full load amps, wire size amps and maximum
overcurrent protective device size.
Figure 33 Electrical field connections for DA125, DA150 and DA165 downflow models
High-Voltage Field
Wiring Pathways
Low-Voltage Field
Wiring Pathways
DPN002317
Pg. 1, Rev. 5
Liebert® DSE™
46
Electrical Connections
Figure 34 Electrical field connections for DA125, DA150 and DA165 downflow models
Refer to Section 8.7 through 8.9 for keys to numbered items.
Liebert IntelliSlot Housing
OVERCURRENT PROTECTION DEVICES
P67
P64
3
A
B
CONTACTORS AND RELAYS
C
4
F
D
OVERLOADS
11
E
G
4
6
24
50
51
55
56
A
16
38C
37B
9
F
38B
B
82
83
88
89
C
37
38
49-1
75
76
94
95
96
97
49-3
17
2
37C
5
7
Low-Voltage Section
Notes:
Typical orientation of components shown.
Component location varies by option and unit size.
Refer to DPN002318 for descriptions of numbered callouts.
SH
1
13
14
10
G
12
19
8
80
81
91
92
93
58
59
70
71
230
18
15
D
84
85
11
12
Item 10 Installation Conditions
1. Follow all local installation codes.
2. Do not run CAN cables in same conduit, raceway, or
chase as high-voltage wires (120-600V).
3. Separate high-voltage wires from CAN wires by 12 in. (305mm).
4. For runs greater than 350ft (107m), contact Liebert factory.
DPN002317
Pg. 2, Rev. 5
E
47
Liebert® DSE™
Guide Specifications
9.0
GUIDE SPECIFICATIONS
1.0
GENERAL
1.1
SUMMARY
These specifications describe requirements for a Thermal Management system. The system shall be
designed to control temperature and humidity conditions in rooms containing electronic equipment,
with good insulation and vapor barrier. The manufacturer shall design and furnish all equipment to
be fully compatible with heat dissipation requirements of the room.
1.2
DESIGN REQUIREMENTS
The Thermal Management system shall be a Liebert self-contained, factory-assembled unit with
downflow air delivery. The system shall have a net total cooling capacity of ____ kW (BTUH) with a
net sensible cooling capacity of ____ kW (BTUH) based on an entering air temperature of ____ °F
(____°C) dry bulb and ____ °F (____°C) wet bulb. The unit is to be supplied with ____ volt ____ ph ____
Hz electrical service. Net capacities shall include losses due to fan motor heat. The system cooling
capacity shall be factory certified per ASHRAE127-2007, and the system sensible coefficient of
performance (SCOP) shall exceed ASHRAE 90.1-2010.
1.3
SUBMITTALS
Submittals shall be provided after the agreement of the proposal and shall include: Single-Line
Diagrams; Dimensional, Electrical and Capacity Data; Piping and Electrical Connection Drawings.
2.0
PRODUCT
2.1
FRAME
The frame shall be welded, formed sheet metal. It shall be protected against corrosion using the
autophoretic coating process. The frame shall be capable of being separated into three parts in the
field to accommodate rigging through small spaces.
2.1.1
Downflow Air Supply
The supply air shall exit from the bottom of the unit.
2.1.2
Downflow Air Return
The return air shall enter the unit from the top
2.1.3
Exterior Panels
The exterior panels shall be insulated with a minimum 1 in. (25mm), 1.5 lb. (0.68 kg) density fiber
insulation. The main front panel shall have captive quarter-turn fasteners. The main unit color shall
be _______________.
2.2
FILTERS—DA080, DA085
2.2.1
Filters, 4" MERV 8
Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV8.
2.2.1
Filters, 4" MERV11
Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV11.
2.2.1
Filters, 2" MERV8 and 2" MERV11
Filters shall be deep pleated 2" filters with an ASHRAE 52.2 MERV8, plus 2" MERV11 filters.
2.2.2
Extra Filter Set
____ extra set(s) of filters shall be provided per system.
Liebert® DSE™
48
Guide Specifications
2.2
FILTERS—DA125, DA150 AND DA165
The filter plenum shall be exterior to the main cooling unit, and shall be field assembled and
installed. The filters shall be removable from the front or top of the filter plenum. The filter plenum
shall be painted to match the panel colors of the indoor cooling unit.
2.2.1
Filters, 4" MERV 8
Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV8.
2.2.1
Filters, 4" MERV11
Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV11.
2.2.1
Filters, 4" MERV13
Filters shall be deep pleated 4" filters with an ASHRAE 52.2 MERV13.
2.2.1
Filters, 2" MERV8 and 2" MERV11
Filters shall be deep pleated 2" filters with an ASHRAE 52.2 MERV8, plus 2" MERV11 filters.
2.2.1
Filters, 2" MERV8 and 2" MERV13
Filters shall be deep pleated 2" filters with an ASHRAE 52.2 MERV8, plus 2" MERV13 filters.
2.2.2
Extra Filter Set
____ extra set(s) of filters shall be provided per system.
2.3
FAN SECTION
2.3.1
Electronically Commutated (EC) Fan
The fans shall be plug/plenum type, motorized impellers, single inlet and dynamically balanced. The
drive package shall be direct drive, electronically commutated and variable speed. The fans shall be
located to draw air over the A-frame coil to ensure even air distribution and maximum coil
performance. EC fans shall be capable of being lowered into a raised floor (during field installation)
with minimum height of 24" (609.6mm). EC fans shall also be capable of operating within the cooling
cabinet, instead of under the floor.
2.4
HUMIDIFIER
A humidifier shall be factory-installed inside the unit. Bypass air slots shall be included to enable
moisture to be absorbed into the air stream. The humidifier capacity shall be 22.1lb./hr (10 kg/hr).
The humidifier shall be removable from the front of the cabinet.
2.4.1
Infrared Humidifier
The humidifier shall be of the infrared type, consisting of high-intensity quartz lamps mounted above
and out of the water supply. The humidifier pan shall be stainless steel and arranged to be removable
without disconnecting high-voltage electrical connections. The complete humidifier section shall be
pre-piped, ready for field connection to the water supply. The humidifier shall be equipped with an
automatic water supply system and shall have an adjustable water-overfeed to prevent mineral
precipitation. A high-water detector shall shut down the humidifier to prevent overflowing. A factory
provided air gap shall prevent back-flow of the humidifier supply water.
2.5
REHEAT
The Thermal Management unit shall include a factory-installed reheat to control temperature during
dehumidification.
2.5.1
Three-Stage Electric Reheat
The electric reheat coils shall be low watt density, 304/304 stainless steel fin tubular construction,
protected by thermal safety switches, shall be ____ kW (____ BTUH) controlled in three stages. The
reheat elements shall be removable from the front of the cabinet. A ground-current detection device
shall disable reheat in the case where a ground-fault is detected in the reheat element.
49
Liebert® DSE™
Guide Specifications
2.6
DUAL REFRIGERATION SYSTEM
Each unit shall include two (2) independent refrigeration circuits and shall include liquid line filter
driers, refrigerant sight glass with moisture indicator and electronic expansion valves. Compressors
shall be located outside the airstream and shall be removable and serviceable from the front of the
unit. Each compressor circuit shall be connected to the full-face area of the evaporator coil.
2.6.1
Digital Scroll Compressors-DA080, DA085
The compressors shall be scroll-type with a variable capacity operation capability. Compressor
solenoid valve shall unload the compressor and allow for variable capacity operation. The compressor
shall have vibration isolators, thermal overloads, automatic reset high-pressure switch with lockout
after three failures, rotalock service valves, suction line strainer and a maximum operating speed of
3500 RPM. The compressor motor shall be suction gas cooled.
2.6.1
Tandem Digital Scroll Compressors-DA125, DA150 and DA165
The compressors shall be tandem, scroll-type with a variable capacity operation capability of one
compressor of the pair. Compressor solenoid valve shall unload the compressor and allow for variable
capacity operation. The compressor shall have vibration isolators, thermal overloads, automatic reset
high-pressure switch with lockout after three failures, rotalock service valves, suction line strainer
and a maximum operating speed of 3500 RPM. The compressor motor shall be suction gas cooled.
2.6.1.1 Crankcase Heaters
The compressors shall include crankcase heaters, powered from the indoor unit electric panel.
2.6.2
Evaporator Coil
The evaporator coil shall be A-frame design and have ______ sq. ft. (______ sq m) face area, six rows
deep, with each circuit feeding three rows. It shall be constructed of rifled copper tubes and aluminum
fins with a maximum face velocity of _____ ft. per minute (_____ m/s) at _____ CFM (_____ CMH). A
stainless steel condensate drain pan shall be provided.
2.6.3
R-410A Refrigerant
The system shall be designed for use with R-410A refrigerant, which meets the U.S. Clean Air Act for
phase-out of HCFC refrigerants. Refrigerant shall be field supplied and field charged by the installing
contractor.
2.7
ECONOPHASE CYCLE (OPTIONAL) (SELECT ONLY IF PR085 OR PR125 IS SELECTED)
During cold outdoor temperatures, refrigerant pumps shall circulate refrigerant through the cooling
system, in lieu of operating the compressors. The compressors shall ramp down during EconoPhase
operation, and if able to completely offset the load, the control system shall shut the compressors off.
Dual refrigerant pumps shall be housed in an enclosure, with each pump dedicated to its own
refrigerant circuit. The EconoPhase system shall include a variable speed drive on each refrigerant
pump to enable to pumps' speed to adjust in response to the load.
2.8
MISCELLANEOUS OPTIONS
2.8.1
Non-Locking Disconnect Switch (Optional)
The manual disconnect switch shall be mounted in the high voltage section of the electrical panel. The
switch shall be accessible with the door closed. The electrical system shall be rated for 65 kA, shortcircuit current rating (28kA at 575V).
2.8.1
Locking Disconnect Switch (Optional)
The manual disconnect switch shall be mounted in the high-voltage section of the electrical panel.
The switch shall be accessible from the outside of the unit with the door closed and shall prevent
access to the high voltage electrical components until switched to the “Off” position. The electrical
system shall be rated for 65 kA, short-circuit current rating (28kA at 575V).
Liebert® DSE™
50
Guide Specifications
2.8.2
High-Temperature Sensor (Optional)
The high-temperature sensor shall be factory-installed in the unit and shall be factory-set to 125ºF
(52ºC). It shall immediately shut down the environmental control system when activated. The sensor
shall be mounted with the sensing element in the return air.
2.8.3
Smoke Sensor (Optional)
The smoke sensor shall immediately shut down the Thermal Management system and activate the
alarm system when activated. The smoke sensor shall be mounted in the electrical panel with the
sensing element in the return air compartment. The smoke sensor is not intended to function as or
replace any room smoke detection system that may be required by local or national codes. The smoke
sensor shall include a supervision contact closure.
2.8.4
Condensate Pump, Dual Float (Optional)
The condensate pump shall have a minimum capacity of 145 GPH (548 l/h) at 20 ft. (58 kPa) head. It
shall be complete with integral dual-float switches, pump-and-motor assembly and reservoir. The
secondary float shall send a signal to the local alarm and shut down the unit upon high water
condition.
2.8.5
Low Voltage Terminal Package (Optional)
Factory-installed and wired terminals shall be provided for customer connection to lock out the reheat
and humidifier upon contact closure. Two (2) extra N/O common alarm contacts shall be provided.
Two (2) extra remote shutdown terminals shall be provided.
2.8.6
Remote Humidifier Contact (Optional)
A pair of N/O contacts shall be provided for connection to a remote humidifier.
2.8.7
Main Fan Overload
A pair of N/O contacts shall be factory-installed and wired to indicate Main Fan Overload.
2.8.8
Compressor Overload (Optional)
A pair of N/O contacts shall be factory-installed and wired to each compressor to indicate Compressor
Overload.
2.9
AIR-COOLED SYSTEMS
The indoor evaporator unit shall include refrigerant piping and shall have a factory holding charge of
nitrogen. The hot-gas and liquid lines shall be spun shut and each shall include a factory-installed
Schrader valve. Field-relief of the Schrader valve shall indicate a leak-free system from the factory.
Installing contractor shall cut the evaporator piping and shall evacuate and charge the system.
Refrigerant shall be supplied by the installing contractor.
2.9.1
Air-Cooled Condenser
The Liebert-manufactured outdoor air-cooled condenser shall be the low profile, multiple direct drive,
propeller fan type. The condenser shall balance the heat rejection of the compressor at ____ °F
(____ °C) ambient. The condenser shall be constructed of a microchannel coil.
2.9.2
Liebert Liqui-tect® Sensors (Optional
____ (quantity) solid state water sensors shall be provided for installation under the raised floor.
2.10
FLOOR STAND
The floor stand shall be constructed of a welded steel frame. The floor stand shall have adjustable legs
with vibration isolation pads. The floor stand shall be ____ inches (______mm) high.
2.10.1 Seismic Rated Floor Stand (Optional)
The floor stand shall be seismic rated per IBC2009, and shall be attached to the unit frame (fieldinstalled). The floor stand shall also be capable of being anchored to the subfloor.
51
Liebert® DSE™
Guide Specifications
2.11
RETURN AIR PLENUM FOR DOWNFLOW UNITS
The air plenum shall be constructed of 20 gauge steel, powder coated to match unit color. The plenum
shall be _____" (_____ mm) high. A door shall be included in the front of the plenum to enable front
filter access. Air shall enter the plenum from the top.
3.0
EXECUTION
3.1
INSTALLATION OF THERMAL MANAGEMENT UNITS
The customer or the customer’s representative shall be responsible for the following:
3.1.1
General
Install Thermal Management units in accordance with manufacturer's installation instructions.
Install units plumb and level, firmly anchored in locations indicated and maintain manufacturer's
recommended clearances.
3.1.2
Electrical Wiring
Install and connect electrical devices furnished by manufacturer but not specified to be factorymounted. Furnish copy of manufacturer's electrical connection diagram submittal to electrical
contractor.
3.1.3
Piping Connections
Install and connect devices furnished by manufacturer but not specified to be factory-mounted.
Furnish copy of manufacturer's piping connection diagram submittal to piping contractor.
3.2
FIELD QUALITY CONTROL
Start cooling units in accordance with manufacturer's startup instructions. Test controls and
demonstrate compliance with requirements. These specifications describe requirements for a
computer room environmental control system. The system shall be designed to maintain temperature
and humidity conditions in the rooms containing electronic equipment.
The manufacturer shall design and furnish all equipment to be fully compatible with heat dissipation
requirements.
Liebert® DSE™
52
Guide Specifications
NOTES
53
Liebert® DSE™
Guide Specifications
Liebert® DSE™
54
Technical Support / Service
Web Site
www.liebert.com
Monitoring
liebert.monitoring@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Single-Phase UPS & Server Cabinets
liebert.upstech@emerson.com
800-222-5877
Outside North America: +00800 1155 4499
Three-Phase UPS & Power Systems
800-543-2378
Outside North America: 614-841-6598
Environmental Systems
800-543-2778
Outside the United States: 614-888-0246
Locations
While every precaution has been taken to ensure the accuracy
and completeness of this literature, Liebert Corporation assumes no
responsibility and disclaims all liability for damages resulting from use of
this information or for any errors or omissions.
© 2014 Liebert Corporation
All rights reserved throughout the world. Specifications subject to change
without notice.
® Liebert is a registered trademark of Liebert Corporation.
All names referred to are trademarks
or registered trademarks of their respective owners.
United States
1050 Dearborn Drive
P.O. Box 29186
Columbus, OH 43229
Europe
Via Leonardo Da Vinci 8
Zona Industriale Tognana
35028 Piove Di Sacco (PD) Italy
+39 049 9719 111
Fax: +39 049 5841 257
Asia
29/F, The Orient Square Building
F. Ortigas Jr. Road, Ortigas Center
Pasig City 1605
Philippines
+63 2 687 6615
Fax: +63 2 730 9572
SL-18934_REV1_08-15
Emerson Network Power
Liebert
www.emerson.com
www.EmersonNetworkPower.com