Liebert® DSE™
System Design Manual–Downflow, 80-150kW, 23-43 Tons; Upflow, 80-85kW, 23-24 Tons; 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1
Floor Stand Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.0
PIPING SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.0
CONDENSERS—DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.0
PLENUM DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1
Outdoor Equipment Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.0
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.0
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.1
Standard Electrical Field Connections, DA080 and DA085 Upflow and Downflow. . . . . . . 35
8.2
CANbus Electrical Connections, DA080 and DA085 Upflow and Downflow . . . . . . . . . . . . 35
8.3
Optional Electrical Field Connections, DA080 and DA085 Upflow and Downflow . . . . . . . 36
8.4
Optional Low-Voltage Terminal Package Field Connections, DA080 and DA085
Upflow and Downflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
8.5
Liebert DSE Electrical Field Connection Descriptions, DA125 and DA150 Downflow
Models Standard Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.6
Optional Electrical Connections, DA125 and DA150 Downflow Models. . . . . . . . . . . . . . . . 39
8.7
Optional Low- Voltage Terminal Package Connections, DA125 and DA150 Downflow
Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
i
ii
Liebert DSE Components and Nomenclature
1.0
LIEBERT DSE COMPONENTS AND NOMENCLATURE
Figure 1
Downflow model component locations
3
2
1
8
11
4
10
6
9
7
5
1. Liebert iCom Control Display
2. Electric Box
3. Filters Plenum (not shipped with unit)
4. Evaporator Coil
5. Fan Modules (internal position)
6. Compressor Section
7. Infrared Humidifier (optional)
8. Disconnect (optional)
9. Condensate Pump (optional)
10. Smoke Sensor (optional)
11. THD Assembly (575V units only)
DPN002402
Rev. 0
1
Liebert® DSE™
Liebert DSE Components and Nomenclature
Figure 2
Upflow model component locations
10
5
7
11
2
1
Typ. 3
1. Liebert iCOM Control Display
2. Electric Box
3. Filters (not shown for clarity)
4. Evaporator Coil
5. Compressor Section
6. Infrared Humidifier (optional)
7. Disconnect (optional)
8. Condensate Pump (optional)
9. Smoke Sensor (optional)
10. EC Fans
11. Plenum (Front Discharge Shown)
Liebert® DSE™
4
8
6
9
2
DPN003010
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
DA = Liebert DSE
Digits 3-5 - Cooling Capacity, kW
Nominal Sensible Capacity, kW
Digit 6 - Air Discharge
D = Downflow
U = Upflow
Digit 7 - System Type
A = Air-Cooled
P = Air-Cooled, Econ-O-Phase Ready
Digit 8 - Airflow (Fan Type)
1 = EC Plug Fans
Digit 9 - Power Supply
A = 460V / 3ph / 60Hz
B = 575V / 3ph / 60Hz
C = 208V / 3ph / 60Hz
D = 230 / 3ph / 60Hz
2 = 380-415 / 3ph / 60Hz
Digit 10 - Cooling System
D = Digital Scroll, R-410A
T = Tandem with Digital, R-410A
Digit 11 - Humidification
0 = None
H = Infrared Humidifier
Digit 12 - Display
D = Liebert iCOM Control with Large Display
E = Liebert iCOM Control with Large Display with Supply Air
Sensor
Digit 13 - Reheat
0 = None
1 = Electric Reheat, 30kW
Digit 14 - Air Filter
8 = MERV 8, 4"
9 = MERV 11, 4"
A = MERV 13, 4"
6 = MERV 11, 2" plus MERV 8 prefilter, 2"
C = MERV 13, 2" plus MERV 8 prefilter, 2"
Digit 15 - Coil Options
1 = Non-Coated Coil, Indoor Unit
2 = Coated Coil, Indoor Unit
Digit 16 - Enclosure Options
1 = Color standard
2 = Color Optional
6 = Color Standard W/Double-Skin Panels
9 = Color Optional W/Double-Skin Panels
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
0 = No disconnect
D = Non-Locking Disconnect
L = Locking Disconnect
3 = No Disconnect, With Condensate Pump
4 = Non-Locking Disconnect, With Condensate Pump
5 = Locking Disconnect, With Condensate Pump
Digit 18 - Option Packages
0 = None
L = Option Package #1 - Low Voltage Terminal Package
H = Reheat and Humidifier Lockout
R = Remote Humidity Contact
C = Option Package #1, Plus Reheat/Humidifier Lockout
D = Option Package #1, Plus Remote Humidifier Contact
E = Option Package #1, Plus Reheat/Humidifier Lockout, plus remote
contact
F = Remote Humidity Contact Plus Reheat/Humidifier Lockout
Digit 19 - Monitoring Cards
0 = No Cards
1 = IS-WEBL Card
3 = IS-485L Card
F = IS-IPBML Card
C = IS-485EXI Card
5 = IS-WEBL & IS-485L Cards
H = IS-WEBL & IS-IPBML Cards
D = IS-WEBL & IS-485EXI Cards
J = IS-485L & IS-IPBML Cards
E = IS-485L & IS-485EXI Cards
K = IS-IPBML & IS-485EXI Cards
Digit 20 - Sensors
0 = None
S = Smoke Sensor
H = High-Temperature Sensor
F = Smoke and High-Temperature Sensors
C = Compressor Overload Sensors
A = Compressor, High-Temperature Sensor
D = Compressor, Smoke Sensor
K = Compressor, High-Temperature, Smoke Sensors
Digit 21 - Packaging
P = Domestic
Digit 22 - 24 Configuration Code
—
Digit 25 - Configuration Code
A=1
S = SFA
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
* The 14-digit model number consists of the first 10 digits and last four digits of the Configuration Number.
3
Liebert® DSE™
Air-Cooled Performance Data
2.0
AIR-COOLED PERFORMANCE DATA
Table 1
Capacity data with and EC fans
Model Size
80
85
125
150
Total, kW (BTUH)
88 (300)
100 (341)
146 (499)
170 (581)
Sensible, kW (BTUH)
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
84 (287)
94 (321)
146 (499)
170 (581)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
3.2
3.1
3.8
3.2
Net Full-Load SCOP (kW/kW) @ 35 Outdoor Ambient
(Pump Mode)
10.5
10.1
17.5
13.0
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)
Sensible, kW (BTUH)
80 (273)
88 (300)
138 (471)
162 (552)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
3.1
3.0
3.6
3.1
Net Full-Load SCOP (kW/kW) @ 35 Outdoor Ambient
(Pump Mode)
9.8
9.4
14.1
12.5
Total, kW (BTUH)
85 (290)
92 (314)
130 (444)
153 (522)
Sensible, kW (BTUH)
77 (263)
83 (283)
130 (444)
153 (522)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
3.0
2.7
3.4
2.9
Net Full-Load SCOP (kW/kW) @ 35 Odor Ambient
(Pump Mode)
9.1
8.7
12.2
12.0
Total, kW (BTUH)
83 (283)
89 (304)
123 (420)
145 (494)
Sensible, kW (BTUH)
72 (246)
78 (266)
123 (420)
145 (494)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
2.8
2.6
3.3
2.7
Net Full-Load SCOP (kW/kW) @ 35 Odor Ambient
(Pump Mode)
8.2
7.9
11.5
11.1
Total, kW (BTUH)
75 (256)
86 (294)
116 (396)
134 (457)
Sensible, kW (BTUH)
85°F DB, 64.5°F WB, 52.3°FDP (29.4°C DB, 18.1°C WB) 32% RH
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
67 (229)
73 (249)
112 (382)
134 (457)
Net Full-Load SCOP (kW/kW) @ 95 Outdoor Ambient
(Compressor Mode)
2.6
2.4
3.0
2.4
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
(30,582)
4.6
5.7
5.9
5.9
2
2
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. 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.
Liebert® DSE™
4
Air-Cooled Performance Data
Table 2
Physical data—Air-cooled units
Model Size
80
85
125
150
24.65 (2.3)
24.65 (2.3)
56.2 (5.2)
56.2 (5.2)
6
6
6
6
389.5 (2.0)
421.9 (2.2)
320.3 (1.6)
320.3 (1.6)
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.
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)
Capacity, kW (KBTUH) - Opt Selection
10 (34.13)
10 (34.13)
10.0 (34.1)
10.0 (34.1)
22 (10)
22 (10)
22 (10)
22 (10)
25 x 20
25 x 20
21.5 x 24
21.5 x 24
4
4
10
10
7/8"
7/8"
7/8"
1-1/8"
above 50ft.
1-1/8"
1-1/8"
1-3/8"
1-3/8"
Infrared Humidifier,O.D. Copper
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
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.
Table 3
Unit
Voltage
Rating
208V
230V
380V
460V
575V
Electrical data - DA080
Reheat
Options
Electric,
Std kW
None
Electric,
Std kW
None
Humidifier
Options
Infrared
Infrared
None
None
FLA
119.2
119.2
97.1
92.6
WSA
128.5
128.5
116.8
101.9
OPD
150
150
125
125
FLA
114.8
114.8
94.6
92.6
WSA
124.1
124.1
113.7
101.9
OPD
150
150
125
125
FLA
74.8
74.8
62.6
62.6
WSA
81.4
81.4
69.2
69.2
OPD
100
100
90
90
FLA
59.6
59.6
48.0
48.0
WSA
64.6
64.6
57.6
53.0
OPD
80
80
70
70
FLA
46.6
46.6
35.8
35.0
WSA
50.2
50.2
43.2
38.6
OPD
60
60
50
50
5
Liebert® DSE™
Air-Cooled Performance Data
Table 4
Unit
Voltage
Rating
208V
230V
380V
460V
575V
Table 5
Unit
Voltage
Rating
208V
230V
380V *
460V
575V
Electrical data - DA085
Reheat
Options
Electric,
Std. kW
None
Electric,
Std. kW
None
Humidifier
Options
Infrared
Infrared
None
None
FLA
152.2
152.2
125.6
125.6
WSA
165.6
165.6
139.0
139.0
OPD
200
200
175
175
FLA
147.8
147.8
125.6
125.6
WSA
161.2
161.2
139.0
139
OPD
200
200
175
175
FLA
74.8
74.8
62.6
62.6
WSA
81.4
81.4
69.2
69.2
OPD
100
100
90
90
FLA
61.0
61
49.4
49.4
WSA
66.2
66.175
58.5
54.575
OPD
80
80
70
70
FLA
50.8
50.8
39.2
39.2
WSA
54.9
54.9
45.775
43.3
OPD
70
70
50
50
Electrical data—DA125
Reheat
Options
Electric
Std. kW
None
Electric
Std. kW
None
Humidifier
Options
Infrared
Infrared
None
None
FLA
174.6
174.6
165.7
148
WSA
193.2
193.2
193.2
155.7
OPD
200
200
200
175
FLA
170.2
170.2
165.2
148
WSA
192.5
192.5
192.5
155.7
OPD
200
200
200
175
FLA
93.6
93.6
88.1
81.4
WSA
102.7
102.7
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
90
100
80
FLA
63.4
63.4
60.5
51.8
WSA
70.7
66.1
70.7
54.5
OPD
80
70
80
60
* 380V version of DA125 is not CSA- listed
Full-load amperage values do not reflect operating amperage values.
Liebert® DSE™
6
Air-Cooled Performance Data
Table 6
Unit
Voltage
Rating
208V
230V
380V *
460V
575V
Table 7
Electrical data - DA150
Reheat
Options
Electric
Std. kW
None
Electric
Std. kW
None
Humidifier
Options
Infrared
Infrared
None
None
FLA
200.2
200.2
182.2
173.6
WSA
209.5
209.5
207.6
182.9
OPD
225
225
225
200
FLA
195.8
195.8
181.9
173.6
WSA
206.9
205.1
206.9
182.9
OPD
225
225
225
200
FLA
130.4
130.4
118.2
118.2
WSA
137.0
137
128.1
124.8
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
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.
3. Source: 306258, Rev. 1
Table 8
Liebert MC™ shipping dimensions and weights
Weights,
Approximate
lb. (kg)
Model #
# of
Fans
Dimensions, L x W x H
in. (mm)
MCL110
2
124-1/8 x 55-5/8 x 43-5/8
(3152 x 1413 x 1108)
605 (273)
MCL165
3
180-1/4 x 55-5/8 x 43-5/8
(4578 x 1413 x 1108)
890 (404)
MCL220
4
236-3/8 x 55-5/8 x 43-5/8
(6003 x 1413 x 1108)
1185 (538)
MCM160
4
256 x 36 x 63
(650 x 91 x 160)
1425 (646)
7
Liebert® DSE™
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: Filters are accessible
through top of unit only.
Downflow electrical
connections can be made
from top or bottom of unit.
3/4"
(19mm) Bezels
Secondary Entrance
High Volt Connection(s)
TOP VIEW
Secondary Entrance
Low Volt Connections
Minimum required
for filter replacement
"A"
5"
(127mm)
76"
(1930mm)
2"
(51mm)
Shaded area indicates a
recommended minimum
clearance for component
access
"B"
DPN000925
Rev. 2
FRONT VIEW
Model No.
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: DPN000925, Rev. 2
Liebert® DSE™
34"
(864mm)
8
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)
9
DPN002950
Rev. 0
Liebert® DSE™
Dimensions and Equipment Layout
Figure 5
Cabinet and floor planning dimensions—downflow, air-cooled, DA125 and DA150, tandem scroll
compressor models
Filter Plenum
(shipped separately)
Filters are removed
though the front of
the plenum
Secondary Refrigerant
Piping Entrance
117-11/16"
Opening
(2989mm)
47"
(1194mm)
48"
(1219mm)
42"
(1067mm)
Opening
45"
(1143mm)
3/4" (19mm)
Bezels
TOP VIEW
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 may remain in their shipped position.
144" (3658mm)
18"
(457mm)
45"
(1143mm)
Plenum
94"
(2388mm)
Total Height
76"
(1930mm)
Base Unit
142" (3607mm)
FRONT VIEW
Dry Weights
DA125: 3465lb (1572kg)
DA150: 3565 (1617kg)
Liebert® DSE™
1"
(25mm)
Typical
10
45"
(1143mm)
47"
(1194mm)
DPN002311
Rev. 2
Dimensions and Equipment Layout
3.1
Floor Stand Dimensions
Figure 6
Floor stand and floor planning dimensions, DA080, DA085
A
B
Piping Access Area
3/4"
(19mm)
32"
(813mm)
Center Feet
31-1/2"
(800mm)
C
Support Feet Centers
3/4"
(19mm)
32-3/4"
(832mm)
D
3/4"
(19mm)
7/8"
(23mm)
See Note 4
3"
(76mm)
33"
(838mm)
1"
(25mm)
E
1. This floor stand should be used when EC fans are intended to be lowered under
a raised floor. The standard Liebert DS floor stand can be used if the fans are to
remain in their original raised position.
2. Right side of paneled unit is flush with right side of floorstand. 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 utilized to lower or raise that fan as needed.
F*
35"
(889mm)
Overall Depth
DPN002151
Rev. 1
* Leveling feet are provided with ±1-1/2" (38mm) adjustment from nominal height C.
Dimensions, In. (mm)
Model #
A
B
C
D
E
DA080, DA085
Air-Cooled
Digital Scroll Models
99
(2515)
17
(432)
97.5
(2477)
99
(2515)
100.5
(2553)
Height, F
In. (mm)
24 (610)
30 (762)
36 (914)
42 (1067)
Source: DPN002151, Rev. 1
48 (1219)
11
Liebert® DSE™
Dimensions and Equipment Layout
Figure 7
Floor stand dimensions—downflow, DA125 and DA150 models
C + 1-1/2" (38mm)
(with feet)
C
D
46-1/2"
(1181mm)
With Feet
Typ 43-1/2"
(1105mm)
Center Feet
Typ
43"
(1092mm)
59-1/4"
Center Feet
(1505mm)
118-1/2"
Center Feet
(3010mm)
120-3/4" Center Feet
(3067mm)
1" (25mm)
Typical
45"
(1143mm) Typical
3/4" (19mm)
Typical
A*
7/8"
(23mm)
Typical
47" (1194mm)
Typical
3" (76mm)
Typical
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. 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 individually.
5) Jack to lower blowers not provided with 18" floor stand.
* Leveling feet are provided with ±1-1/2” (38mm) adjustment from nominal height A.
Height, in. (mm)
A*
B*
24 (610)
—
30 (762)
—
36 (914)
5 (127)
42 (1067)
11 (279)
48 (1219)
17 (432)
Dimensions, in. (mm)
C
D
Air-Cooled
142 (3607)
21 (533)
Water/Glycol
Cooled
164" (4166mm)
43" (1092mm)
Source: DPN002315, Rev. 2
Liebert® DSE™
12
B
DPN002315
Rev. 2
Piping Schematics
4.0
PIPING SCHEMATICS
Figure 8
Primary connection locations—downflow, air-cooled DA080 and DA085, scroll compressor
models
NOTE: Drawing not to scale.
Tolerance on
all piping dimensions
is ±1/2" (13mm).
All dimensions from
rear corner of unit
including panels
A
A
FRONT VIEW
SECTION A-A
X
O
Y
R
5" (127mm)
BLOWER
OUTLET
L1 L2 G1 G2
35"
(889mm)
15"
(379mm)
ECS ECR
B1
E1
E2 HUM
LV1
LV2
LV3
FRONT OF UNIT
100" (2540mm)
DPN002182
Rev. 2
Point
Description
X, in. (mm)
Y, in. (mm)
Connection Size / Opening
in. (mm)
R
Refrigerant Access
81-3/4 (2076)
14-3/4 (374)
12-3/16 x4 (310 x 102)
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
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
HS
Hot Water Reheat Supply
Consult Factory
HR
Hot Water Reheat Return
Consult Factory
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)
*
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.
Source: DPN002182, Rev. 2
13
Liebert® DSE™
Piping Schematics
Figure 9
Primary connection locations—downflow, air-cooled, DA125, scroll compressor models
A
A
FRONT VIEW
NOTE: Drawing not to scale.
Tolerance on all piping dimensions
is ±1/2" (13mm).
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)
41"
(1041mm) Typical
AIR DISCHARGE
AREA
CD
47"
(1193mm)
29-5/16"
(744mm) Typical
AIR DISCHARGE
AREA
LV1
LV2
LV3
E1 E2 HUM
B
FRONT EDGE OF UNIT
144" (3657mm)
* Field pitch Condensate Drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). 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.
DPN002312
Opening for conduit chase, E1 and E2 are openings for conduit for connections to 2-1/2", 1-3/4" and
Pg. 1, Rev. 4
1-3/8" knockouts at electric panel
DX Only
Point
Description
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
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
Source: DPN002312, Rev. 4, Pg. 1
Liebert® DSE™
14
Piping Schematics
Figure 10 Primary connection locations—downflow, air-cooled, DA150, scroll compressor models
A
A
All dimensions from
rear corner of unit
including panels
X
FRONT VIEW
NOTE: Drawing not to scale.
Tolerance on all piping dimensions
is ±1/2" (13mm).
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
FRONT EDGE OF UNIT
144" (3657mm)
* Field pitch Condensate Drain line a minimum of 1/8" (3.2 mm) per foot (305 mm). 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.
DPN002312
Opening for conduit chase, E1 and E2 are openings for conduit for connections to 2-1/2", 1-3/4" and
Pg. 2, Rev. 4
1-3/8" knockouts at electric panel
DX Only
Point
Description
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
140 (3554)
14 (355)
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
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)
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)
B
Blower Outlet
Consult Factory
Source: DPN002312, Rev. 4, Pg. 2
15
Liebert® DSE™
Piping Schematics
Figure 11 Primary connection locations—upflow, DA080U and DA085U
15-7/16"
(392mm)
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 dimensions.
3.
35"
(889mm)
O
X
R1
4"
(102mm)
5" (127mm)
All dimensions from
rear corner of unit
including panels
R2
HUM
CPD
L1L2G1G2
4.
Y
14-15/16"
(379mm)
3.
LV1
LV2
LV3
E1 E2
6"
(152mm)
100" (2540mm)
TOP VIEW
Front of Unit
R3
17-3/16"
(437mm)
3
CGD*
14-1/4"
(362mm)
3-7/8"
(98mm)
14-1/8"
(359mm)
15-7/8"
(403mm)
L1L2G1G2
Factory Location
Left Side Section View of Unit
Front Section View of Unit
(Left Front Panel Not Shown)
CGD*
* Field pitch Condensate Drain line a minimum of 1/8" (3.2 mm) per foot (305 mm).
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.
Point
R1
Description
3
Refrigerant Access (Top)
R2
3
Refrigerant Access (Bottom)
R3
3
Refrigerant Access (Side)
L1
X
inches (mm)
Y
inches (mm)
DPN002951
Rev. 0
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)
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
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)
28-9/16 (726
7/8
LV2
Electrical Connection (Low Voltage)
2-5/8 (66)
30 (762)
7/8
LV3
Electrical Connection (Low Voltage)
2-5/8 (66)
31-7/16 (799)
7/8
Source: DPN002951, Rev. 0
Liebert® DSE™
16
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
*Full Ported
Ball Valve
See Note 4
Differential
Check Valve
(Required)
REFRIGERANT PIPING
* Components are not supplied by
Liebert but are required for
FIELD PIPING
proper circuit operation and
SERVICE/SCHRADER (ACCESS) CONNECTION, NO VALVE CORE
maintenance.
SERVICE/SCHRADER (ACCESS) CONNECTION, WITH VALVE CORE
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.
17
DPN002615
Rev. 4
Liebert® DSE™
Piping Schematics
Figure 13 Piping schematic—air-cooled, tandem compressor models, DA125 and DA150
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.
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
18
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
Liebert® DSE™
*Full Ported
Ball Valve
See Note 4.
DPN002340
Rev. 7
Condensers—Dimensions
5.0
CONDENSERS—DIMENSIONS
Figure 14 Cabinet and anchor dimensions, MCM040, MCM080, 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)
A* (575V)
in. (mm)
B
C
D
E
in. (mm) in. (mm) in. (mm) in. (mm)
Leg
Height
F1
in. (mm)
G
H
in. (mm) in. (mm)
MCM040
1
57-3/16
(1453)
65 3/8
(1661)
--
48
(1219)
46-5/16
(1177)
--
18 (457)
31-5/8
(803)
39-5/8
(1006)
MCM080
2
105-1/4
(2674)
113-7/16
(2882)
--
96-1/16
(2440)
94-7/16
(2398)
--
36 (914)
49-5/8
(1260)
57-5/8
(1464)
MCM160
4
202-7/16
(5142)
210-5/8
(5350)
113-1/2
(2883)
192-1/4
(4883)
94-7/16
(2398)
96-3/16
(2444)
48 (1219)
61-5/8
(1565)
69-5/8
(1768)
60 (1524)
73-5/8
(1870)
81-5/8
(2073)
1. Cross-bracing required for legs longer than 18" (457mm). Quantity varies according to the
model and options selected.
2. Source: DPN002172, Rev. 5
19
Liebert® DSE™
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 9
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
Liebert® DSE™
20
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"x1-1/8"
1
14
Reducer, Copper CXC 1-1/8"x7/8"
1
15
Support Leg
1
16
Fastener Assembly: Cap Screw, Lock Washer, Fender Washer
4
Source: DPN002554, Page 1, Rev. 4
21
Liebert® DSE™
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"x1-1/8"
Reducer, Copper CXC 1-1/8"x7/8"
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
Liebert® DSE™
22
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
23
Liebert® DSE™
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
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
Liebert® DSE™
Quantity
24
Plenum Dimensions
6.0
PLENUM DIMENSIONS
Figure 20 Plenum dimensions—downflow, DA080 and DA085, air-cooled digital scroll models
80-1/2" (2045mm)
Return air inlet
opening
Height,
in. (mm)
32-1/8"
(816mm)
Opening
7/8"
(22mm) Typical
H
20 (508)
24 (610)
36 (914)
34"
(864mm)
82-1/4" (2089mm)
Plenum
Hinged door for
filter access
12"
(305mm)
1"
(25mm)
H
76"
(1930mm)
Liebert
DSE Unit
DPN001107
Pg. 2, Rev. 2
25
Liebert® DSE™
Plenum Dimensions
6.1
Outdoor Equipment Dimensions
Figure 21 Plenum dimensions—upflow, DA080U and DA085U, 53-77kW (15-22 tons), EC fans
Top duct flanges on plenum
top for supply air ducting when
solid panel plenum is used.
D
0.88"
(22.2mm)
C
H
I
G
J
Both top duct opening
and grilles shown. See
specification sheet for
specific application.
0.88"
(22.2mm)
E
A
F
B
DPN002748
Rev. 1
Liebert® DSE™
26
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
36"
(914mm)
Minimum
Clearance
21-3/8"
(543mm)
ISOMETRIC VIEW
1-3/8" Liquid Line
from Condenser
4-13/16"
(122mm)
36-15/16"
(939mm)
B
42-1/8" (1071mm)
System
Circuit 2
Liquid In
System
Circuit 1
Liquid In
System
Circuit 2
Liquid Out
System
Circuit 1
Liquid Out
40-1/8"
(1019mm)
Ø 7/16" (11mm)
typical 8 places
for unit mounting
9-3/8"
(238mm)
Ø 7/16" (11mm)
Typical 8 Places
for unit mounting
40-11/16" (1033mm)
4-13/16"
(123mm)
7/8" Liquid to
Indoor Unit
LEFT SIDE VIEW
21-5/16"
(541mm)
40"
(1016mm)
REAR VIEW
(PIPING END)
39-3/8"
(1000mm)
36-3/16" (919mm)
Unit Voltage, Hz
208/230, 460V 60Hz
380/400, 575V 60Hz
415V 50Hz
Approximate Weight
lb (kg)
340 lb.(154kg)
390 lb. (177kg)
347 lb. (157kg)
5/8"
(16mm)
2-15/16"
(56mm)
35-7/8" (911mm)
A
DETAIL B
FRONT VIEW
DPN002326
Rev. 4
A
27
12-15/16"
(328mm)
22-15/16"
(582mm)
32-15/16"
(836mm)
35-7/8"
(911mm)
SECTION A-A
Liebert® DSE™
Plenum Dimensions
Figure 23 Condenser and Liebert EconoPhase™ unit locations, typical unit arrangement diagram layout
Top View
Circuit 1
Circuit 2
Air-Cooled
Condenser
Top View
Liebert
EconoPhase
Unit
Entering Hot
Gas Line
CIRCUIT 1
42"
(1067mm)
Minimum
Clearance
Air-Cooled
Condenser
Liquid Line
to Liebert
EconoPhase
from Bottom of
Receiver
Entering Hot
Gas Line
CIRCUIT 2
*Liquid line from
Condenser 1-3/8".
Do Not Trap Line.
Slope toward Liebert
EconoPhase unit.
* Liquid Line from Condenser 1-3/8"
Do Not Trap Line
Slope down 2" per 10' (51mm per 3m)
toward Liebert EconoPhase unit
* Liquid from Condenser 1-3/8"
Do Not Trap Line
Slope down 2" per 10' (51mm per 3m)
toward Liebert EconoPhase unit
CIRCUIT 1 CIRCUIT 2
60"
(1524mm)
60" leg height
Typical; see Note 1.
Factory-supplied, Field-installed
Field Piping
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.
Liebert® DSE™
28
*Components are not supplied by
Emerson but are recommended
for proper circuit operation and
maintenance.
**Components supplied by Emerson
and must be field-installed.
DPN002324
Rev. 3
Disassembly
7.0
DISASSEMBLY
Figure 24 Liebert DSE disassembly downflow air-cooled 53-77kW and DA080, DA085 with EC fans
Filter & Electric Box Assembly
39"
(991mm)
Forward curved
blowers shown.
DA units only
available with EC
blowers, optional
on DS.
Compressor Assembly
Blower & Coil Assembly
76"
(1930mm)
Assembled Height
76"
(1930mm)
59-7/16"
(1509mm)
37"
(940mm)
DS053-DS077 =
15" (381mm)
DA080,DA085 =
17" (432mm)
82"
(2083mm)
33"
(838mm)
NOTE: Drawing views are simplified with panels removed
to show over all dimensions. See disassembly and
handling instructions in installation manual.
Assembled Length
DS053-DS077 = 97" (2464mm)
DA080,DA085 = 99" (2515mm)
29
DPN000927
Rev. 5
Liebert® DSE™
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
Blower & Coil Assembly
94"
(2388mm)
Assembled Height
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.
Table 10
Approximate dry weight, lb (kg), includes panels
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: DPN002420, Rev. 0
Liebert® DSE™
30
DPN002420
Rev. 2
Disassembly
Figure 26 Liebert DSE disassembly dimensions, upflow air-cooled 53-77kW (15-22 tons) and
DA080U-DA085U
Blower & Electric
Box Assembly
31-1/4"
(794mm)
Compressor Assembly
Filter & Coil Assembly
76"
(1930mm)
Assembled Height
76"
(1930mm)
45-13/16"
(1163mm)
33"
(838mm)
VS053-VS077 =
15" (381mm)
DA080,DA085 =
17" (432mm)
NOTE: Drawing views are simplified with panels removed
to show overall dimensions. See disassembly and
handling instructions in installation manual.
82"
(2083mm)
Assembled Length
VS053-VS077 = 97" (2464mm)
DA080,DA085 = 99" (2515mm)
31
DPN001210
Rev. 2
Liebert® DSE™
Electrical Connections
8.0
ELECTRICAL CONNECTIONS
Figure 27 Electrical field connections Premium Efficiency Control, three-fan models
Condenser #1
Connect this
wire only to
Condenser #1
70
Fan #3
12
13
70
71
230
C1
71
C2
230
Fan #2
Condenser #2
Liebert Indoor Unit
12
13
70
71
230
Connect this
wire only to
Condenser #2
Fan #1
DETAIL A
ON
123 45678
CAN
DETAIL B
(DIPswitch 1 Setting Position)
Electrical Service Connection
Terminals with factory-supplied
disconnect
Factory-Installed Contactors
Factory-Installed Fuse Blocks
Factory-Installed
Disconnect
Earth Ground Connection
Connection terminal for fieldsupplied earth grounding wire
See
Note 4
B
A
Earth Ground Bar
Connection terminals with factory
ground from each high voltage
component for field-supplied earth
grounding wire. Factory-wired to
GND to the fans.
.
Electrical
Service Entrance
Remote
shutdown
Remote
Shutdown
(See Note 3)
Alarm
Connections
Factory-Installed
Transformer
7/8 in. (22.2mm) diameter holes in
1-1/8 in. (28.6mm) knockouts
provided in bottom of electric box
Field-wired SPD
Field-installed CANbus
Electrical Service
(Optional)
communication with indoor
Not by Emerson
unit. (See Note 2)
NOTE:
1. Refer to specification sheet for full load amp and wire size amp ratings.
2. For the Premium models, the CANbus wiring must be shielded cable that has at least one triad of 24-20AWG
conductors plus a drain wire, similar to Belden Part #1348A or Alpha Wire Part # 6351. The cable
must either be water resistant and sunlight resistant, or be run in conduit once it is outside the building.
3. 24V field-supplied control voltage wiring from Liebert indoor unit must be a minimum of 18 gauge (1.6mm)
or not to exceed 1 volt drop in control line. Wire per local code.
4. If two condensers are used for one dual-circuit Liebert indoor unit, the condenser used for Circuit 2 must
have CAN DIPswitch 1 set to the Off position. See Detail B.
306266
Rev. 3
Liebert® DSE™
32
Electrical Connections
Figure 28 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
33
Liebert® DSE™
Electrical Connections
Figure 29 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™
34
Electrical Connections
8.1
Standard Electrical Field Connections, DA080 and DA085 Upflow and Downflow
Source: DPN000807, Revision 9; refer to Figures 30 and 31
1. Primary high-voltage entrance—2.5" (64mm); 1.75" (44mm); 1.375" (35mm) diameter
concentric knockouts in bottom of box.
2. Secondary high-voltage entrance—2.5" (64mm); 1.75” (44mm); 1.375" (35mm) diameter
concentric knockouts 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 Terminal 71 and Terminal 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.
8.2
CANbus Electrical Connections, DA080 and DA085 Upflow and Downflow
Source: DPN000807, Revision 98; refer to Figures 30 and 31
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. Cable
must have the following specifications:
a. Conductors—22-18AWG stranded tinned copper
b. Twisted pair
c. Braided shield or foil shield with drain wire
d. Low-capacitance—15pf/ft or less
e. UL-approved temperature rated to 167 (75°C)
f. UL-approved voltage rated to 300V
g. UV-resistant and moisture-resistant if not provided in conduit.
h. Plenum-rated—NEC type CMP (if required by national or local codes.)
35
Liebert® DSE™
Electrical Connections
8.3
Optional Electrical Field Connections, DA080 and DA085 Upflow and Downflow
Source: DPN000807, Revision 9; refer to Figures 30 and 31
13. Unit factory-installed disconnect switch, fuse block and main fuses—Two types of
disconnect switches are available: locking and non-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 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 Liebert.
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
field-supplied Class 1 wiring.
8.4
Optional Low-Voltage Terminal Package Field Connections, DA080 and DA085
Upflow and Downflow
Source: DPN000807, Revision 9; refer to Figures 30 and 31
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
field-supplied 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™
36
Electrical Connections
Figure 30 Electrical field connections, DA080, DA085, single molded case switch disconnect with main
fuses
Refer to Section 8.5 through 8.7 for keys to numbered items.
2
Liebert
IntelliSlot
Housing
4
OVERCURRENT PROTECTION DEVICES
15
A
B
C
D
Alternate
Location
P64
6
CONTACTORS
60Hz
P67
CONTACTORS, RELAYS, &
OVERLOAD PROTECTORS
13
E
5
1
Typical orientation of components shown.
Component location varies by option and unit size.
17
18
82 83 88 89
9
22
16
19
B
23
58 59 84 85
C
11
75 76 94 95 96 97 91 92 93 80 81 11 12
A
24
3
Low-Voltage Section
DA080/-85
6
21
37C 38C 37B 38B
7
8
10
20
12
37 38 24 50 51 55 56 70 71 23072 73
E
D
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).
4. Contact factory for runs greater than 350ft. (107m).
37
DPN000807
Pg. 2, Rev. 9
Liebert® DSE™
Electrical Connections
Figure 31 Electrical field connections, DA080 and DA085 models, dual-fused disconnect switches
4
14
2
A
Overcurrent Protection Devices
15
6
Liebert
IntelliSlot
Housing
B
CD
60 Hz
Alternate
Location
15
P64
Contactors
P67
SECONDAR
Y
PRIMARY
13
Contactors, Relays, &
Overload Protectors
E
Low-Voltage Section
DA080/-85
6
1
Note: Typical orientation of components shown.
Component location varies by option and unit size.
18
22
9
16
11
19
SH
17
3
75 76 94 95 96 97 91 92 93 80 81 11 12
23
21
7
8
49-3
B
A
24
49-1
82 83 88 89
20
10
12
58 59 84 85
37C38C37B38B 37 38 24 50 51 55 56 70 71 230 72 73
C
E
D
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
4. For runs greater than 350ft. (107m), contact Liebert factory.
Pg. 3, Rev. 9
Liebert® DSE™
38
Electrical Connections
8.5
Liebert DSE Electrical Field Connection Descriptions, DA125 and DA150 Downflow
Models Standard Electrical Connections
Source: DPN002318, Revision 4 (See Figure 33 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. Cable
must meet the following specifications:
a. Conductors—22-18AWG stranded, tinned copper
b. Twisted pair (minimum of eight twists per foot [305mm])
c. Braided shield or foil shield with drain wire
d. Low capacitance—15pf/ft or less
e. UL approved temperature rated to 75°C
f. UL approved voltage rated to 300V
g. UV- and moisture-resistant if not run in conduit.
h. Plenum rated—NEC type CMP, if required by national or local codes
8.6
Optional Electrical Connections, DA125 and DA150 Downflow Models
Source: DPN002318, Revision 4 (See Figure 33 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.
39
Liebert® DSE™
Electrical Connections
8.7
Optional Low- Voltage Terminal Package Connections, DA125 and DA150
Downflow Models
Source: DPN002318, Revision 4 (See Figure 33 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 75VA, 24VAC rating. 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. 1A, 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. 1A, 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). 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.
Figure 32 Electrical field connections for DA125 and DA150 downflow models
High-Voltage Field
Wiring Pathways
Low-Voltage Field
Wiring Pathways
DPN002317
Pg. 1, Rev. 4
Liebert® DSE™
40
Electrical Connections
Figure 33 Electrical field connections for DA125 and DA150 downflow models
Refer to Section 8.5 through 8.7 for keys to numbered items.
Liebert IntelliSlot Housing
OVERCURRENT PROTECTION DEVICES
P67
P64
3
A
F
B
CONTACTORS AND RELAYS
C
4
D
OVERLOADS
11
E
G
Notes:
Typical orientation of components shown.
Component location varies by option and unit size.
Refer to DPN002318 for descriptions of numbered callouts.
4
1
Low-Voltage Section
2
9
7
17
13
14
12
19
8
15
5
SH
38C
37B
38B
B
82
83
88
89
C
80
81
91
92
93
16
F
49-1
A
75
76
94
95
96
97
37
38
10
Item 10 Installation Conditions
G
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. Contact factory for runs greater than 350ft (107m).
DPN002317
Pg. 2, Rev. 4
D
58
59
70
71
230
18
37C
49-3
6
24
50
51
55
56
84
85
11
12
E
41
Liebert® DSE™
GUIDE SPECIFICATIONS
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™
42
GUIDE SPECIFICATIONS
2.2
FILTERS-DA125, DA150
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 backflow 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.
43
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
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™
44
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.
45
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
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™
46
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-18926_REV4_09-14
Emerson Network Power
Liebert
www.emerson.com
www.EmersonNetworkPower.com