&/26(&21752/
DIRECT EXPANSION WATER COOLED
CLOSE CONTROL AIR CONDITIONER
5&
&RROLQJ
>N:@
5.7
8.5
9.7
13.0
18.8
21.4
24.9
The MR WC range of direct expansion water-cooled, close control air conditioning units have high sensible heat ratios, are designed for inroom installation and feature automatic temperature and humidity control with high efficiency air filtration. Compact in size, they are
suitable for all applications requiring precision control of temperature, humidity and air cleanliness.
Available in seven models sizes with nominal cooling capacities from 5kW to 25kW and a wide range of options and accessories, they can
meet most application requirements
The built-in plate condenser can be connected either in a closed loop with an exisiting dry-cooler/cooling tower, or in open loop with well
water, particularly suitable for sites with outdoor constraints as no additional external units are needed.
Typical applications are Data Centres, Telephone Exchanges, Control Rooms and Laboratories. Available in either upflow or downflow
configurations with front air return, the units are designed and built to robust standards utilising continuously rated, high reliability
components offering long, trouble free operation with routine maintenance access from the front of the unit only.
CERTIFIED QUALITY SYSTEM ISO 9001 : 2000
%7**%
6L]H
&/26(&21752/
67$1'$5'81,763(&,),&$7,216
&2035(6625
Hermetic orbiting scroll compressor complete with motor over-temperature and
over-current devices and protection against excessive gas discharge temperature. Fitted on rubber antivibration mounts and complete with oil charge
6758&785(
Structure made from electric-welded painted «ALUZINK», providing excellent
mechanical characteristics and extensive corrosion strength.
3$1(//,1*
External unit panelling made from painted metal plate (RAL 9002) with embossed effect, internally lined with heat insulation and soundproofing material. The
panelling is easy to remove for complete accessibility to the internal components.
The top panel on upflow versions includes the air supply grille, with double row
of adjustable fins
$,5(;&+$1*(5
Direct expansion finned exchanger, made from copper pipes in staggered rows
and mechanically expanded to the fin collars. The fins are made from aluminium with a corrugated surface and adequately distanced to ensure the maximum heat exchange efficiency.
:$7(5(;&+$1*(5
Brazed-plate exchanger in AISI 316 stainless steel for increased surface exchange with external thermal/anticondensate insulation
)$1
Dual intake centrifugal fan, directly coupled, motor with external rotor, located
in the centre of the fan in an aerodynamically optimum position and suspended
on antivibration dampers. Forward blades for maximum efficiency and low
noise, statically- and dynamically-balanced according to the ISO 1940 standards, section 6.3. The scroll, the rotor and the frame are made from galvanized steel plate (sendzimir).
Complete with differential pressure switch for lack of air flow alarm
5()5,*(5$17&,5&8,7
The circuit is complete with:
- thermostatic expansion valve with equalizer
- high pressure switch
- low pressure switch
- liquid line shut-off valve
- plug fuse: high pressure safety device
- dehydrator filter
- liquid flow and moisture indicator
),/75$7,21
Flat filter, made up of a galvanized plate frame with galvanized and electricwelded protective mesh, and regenerable filtering media made from polyester
fibre sized with synthetic resins. G4 efficiency according to CEN-EN 779
standard (Eurovent class EU4/5 - average efficiency 90.1% ASHRAE 52-76
Atm). Self-extinguishing (resistance to fire class 1 - DIN 534338).
75$<
Tray made from AISI 304 stainless steel and fitted with drain pipe.
(/(&75,&$/3$1(/
BT02G033GB-00
The electrical panel is positioned inside the units, with access through a swing
door that is opened by a special key.
The Power Section includes:
- main door lock isolator switch
- compressor power supply remote control switch
- compressor circuit breaker
- centrifugal fan motor power supply remote control switch
- fan overload circuit breakers
- 24 Vac transformer for auxiliary circuit
- auxiliary circuit breaker
The control section includes:
- microprocessor control
- display of the set values and the error codes
- ambient temperature display
- status bar display of the activity in progress
- hour counter exceeded display and buzzer active
- control keypad, including:
- yellow power supply signal LED
- green unit in operation signal LED
- red alarm signal LED
- ON/OFF button for status switching
- ENTER button for programming
- UP/DOWN buttons for setting the parameters
- ALARM button to access the alarm management functions
The microprocessor offers the following functions:
- treated air temperature control
- rotation: used to rotate a maximum of 6 units with one unit in stand-by. If an
alarm occurs on one of the active units, the unit in stand-by is activated
- remote alarm: the user can transfer the alarm signal remotely using two voltfree contacts (1 normally closed and 1 normally open)
$&&(6625,(6
- two port water pressostatic valve on the condenser
- electric heating coil operating via aluminium resistive elements with integral
fins, 2 steps and high temperature cut out switch
- additional 1 row heating coil with 3 port regulation valve supplied with external hot water
- 1-row hot gas post-heating coil with by-pass valve on the compressor discharge
- protocol converter kit (gateway) to Modbus supervisor (BMS)
- protocol converter kit (gateway) to BACnet supervisor (BMS)
- RS485/RS232 serial converter kit
- immersed electrode steam humidifier with electronic controller featuring
proportional control fitted with humidity probe on the air intake and steam
distributor.
- humidifier with openable and cleanable cylinder
- sandwich panels with standard lining and perforated internal surface for best
sound insulation
- three sides air supply plenum with double deflection grilles, in painted
"aluzink" (RAL 7016)
- front air supply plenum, with double deflection grille, in painted
"aluzink" (RAL7016)
- adjustable floor stand RAL 7016 with telescopic columns
(300mm<H<500mm)
- adjustable floor stand RAL 7016 with air discharge scoop and telescopic
columns (300mm<H<500mm)
- motorised damper on air supply for unit insulation (downflow version)
- condensate discharge pump
- F5 high efficiency air filters in lieu of standard ones
- phase monitor to check the presence and correct sequence of the power
supply phases
- floor water sensor to detect leak from the water circuit, with remote alarm.
- version with Isolert 3+ electronics with graphic display instead of the Carel
standard
- serial port RS485
- clock board for time band management and alarm logging
- differential pressure switch to measure the pressure difference between the
air intake and outlet in the filter section. In the event where the differential
pressure is greater than the set value, a remotable alarm is activated.
67$1'$5'81,763(&,),&$7,216
05:&
0
287/(7
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7RSRXWOHW0
2
&/26(&21752/
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6L]H
&22/,1*
Cooling capacity
Sensitive capacity
Compressor power input
1
1
1
kW
kW
kW
5.7
5.1
1.3
8.5
7.1
2
9.7
8
2.6
13
11.4
2.9
18.8
15.6
4.1
21.4
16.6
4.7
24.9
22.2
5.4
2
Txt
Num
l
SCROLL
1
1
SCROLL
1
1.1
SCROLL
1
1.1
SCROLL
1
1.85
SCROLL
1
1.65
SCROLL
1
1.65
SCROLL
1
4
m2
Num
mm
0.36
4
1.8
0.36
4
1.8
0.36
4
1.8
0.44
4
1.8
0.64
4
1.8
0.64
4
1.8
0.78
4
1.8
Num
mm
rpm
l/s
kW
Pa
1
252
600
472
0.4
100
1
252
1100
555
0.4
150
1
252
1300
639
0.4
200
1
280
1400
944
0.6
190
2
252
1300
1150
0.4
200
2
252
1300
1150
0.4
190
2
280
1400
1888
0.6
200
mm
mm
22/22
22
22/22
22
22/22
22
22/22
22
28/28
22
28/28
22
28/28
22
kg
172
176
176
226
275
277
310
mm
mm
mm
750
490
1800
750
490
1800
750
490
1800
925
490
1800
1250
490
1800
1250
490
1800
1500
490
1800
dB(A)
47
50
51
53
54
56
58
&2035(6625
Type of compressors
No. of Compressors
Oil charge (C1)
$,5+$1'/,1*6(&7,21
Front surface
Number of rows
Fin spacing
$,5+$1'/,1*6(&7,21)$16287/(7
Number of fans
Fan diameter
Fan RPM
Standard air flow
Installed unit power
Max outside static pressure
3
&211(&7,216
Water fittings
Condensate discharge
4
67$1'$5'81,7:(,*+76
Shipping weight
',0(16,216
Length
Depth
Height
12,6(/(9(/6
Sound pressure levels
5
(3) on request, with standard fans. Please contact our Sales office for further details.
(4) inlet / outlet
(5) sound pressure level given for reading 1 metre from front of unit..
(1) ambient temperature 24°C DB/ 17.1°C WB
relative humidity 50%
condenser water = 30/35°C
standard 50 Pa static pressure
(2) C1 = single cooling circuit
(/(&75,&$/'$7$
6L]H
A
A
Num
A
A
3.8
1.5
1
1
6.3
5.8
2.1
1
1
8.9
6.7
3.2
1
1
10.9
7.7
5.9
1
1
14.6
11.3
3.2
2
1
18.7
14.2
3.2
2
1
21.6
15.1
5.9
2
1
27.9
A
A
24
4
40
4
46
4
50
8
74
4
101
4
99
8
kW
kW
kW
kW
2.2
0.3
0.2
2.7
3.4
0.5
0.2
4.1
3.9
0.7
0.2
4.8
4.7
1.4
0.2
6.3
6.6
0.7
0.2
8.2
7.9
0.7
0.2
9.5
8.8
1.4
0.2
11.8
A
28
44
50
59
81
108
111
)/$)8///2$'&855(17$70$;$'0,66,%/(&21',7,216
Compressor 1 (400/3/50)
Outlet fans (400/3/50 )
Number of fans
Aux.trans.circuit (400/3/50 )
Total (400/3/50+N )
/5$/2&.('52725$03(5(6
Compressor 1 (400/3/50)
Outlet fans (400/3/50 )
Compressor 1 (400/3/50)
Outlet fans (400/3/50 )
Aux.trans.circuit (400/3/50 )
Total (400/3/50+N )
BT02G033GB-00
)/,)8///2$'32:(5,1387$70$;$'0,66,%/(&21',7,21
0,&0$;,080,1586+&855(17
Value (400/3/50+N )
32:(56833/<
power supply
V
400/3/50+N 400/3/50+N 400/3/50+N 400/3/50+N 400/3/50+N 400/3/50+N 400/3/50+N
(/(&75,&+($7(56
*5$1'
3 kW
6 kW
9 kW
12 kW
18 kW
X
-
X
-
X
X
-
X
X
-
X
X
-
X
X
-
X
X
The electrical heating is realized by aluminium heating elements on a galvanized steel frame, complete with a safety thermostat and a circuit breaker.
hot water coil and electric heaters, hot gas coil and electric heaters, hot gas coil and hot water coil cannot be mounted at the same time
3
&/26(&21752/
&22/,1*3(5)250$1&(
&21'(16(5:$7(5287/(77(03(5$785(ƒ&'7ƒ&
7D
6L]H
'%:%
25
ƒ&
30
35
40
45
50
kWf
kWe
kWs
kWf
kWe
kWs
kWf
kWe
kWs
kWf
kWe
kWs
kWf
kWe
kWs
kWf
kWe
kWs
20 / 13.8
5.19
1.21
4.83
5.18
1.22
4.81
5.08
1.30
4.78
4.88
1.46
4.76
4.58
1.69
4.58
4.19
1.99
4.19
22 / 15.4
5.50
1.22
4.99
5.48
1.24
4.97
5.36
1.32
4.95
5.14
1.48
4.93
4.82
1.71
4.82
4.41
2.02
4.41
23 / 16.2
5.65
1.23
5.07
5.63
1.24
5.05
5.50
1.33
5.02
5.28
1.49
5.00
4.95
1.73
4.95
4.52
2.03
4.52
24 / 17.1
5.82
1.23
5.11
5.80
1.25
5.09
5.67
1.35
5.06
5.43
1.51
5.04
5.10
1.74
5.01
4.65
2.04
4.65
25 / 17.9
5.97
1.24
5.21
5.95
1.26
5.19
5.82
1.36
5.16
5.58
1.52
5.13
5.23
1.75
5.11
4.78
2.06
4.78
26 / 18.7
6.12
1.24
5.34
6.10
1.27
5.31
5.97
1.36
5.28
5.73
1.53
5.25
5.37
1.77
5.23
4.91
2.07
4.91
20 / 13.8
7.92
1.83
6.81
7.84
1.89
6.76
7.64
2.04
6.70
7.31
2.28
6.65
6.84
2.62
6.60
6.25
3.05
6.25
BT02G033GB-00
22 / 15.4
8.37
1.82
7.03
8.28
1.89
6.97
8.05
2.04
6.91
7.68
2.29
6.85
7.17
2.63
6.78
6.52
3.06
6.52
23 / 16.2
8.61
1.82
7.14
8.51
1.89
7.08
8.26
2.04
7.01
7.88
2.29
6.95
7.34
2.63
6.88
6.67
3.06
6.67
24 / 17.1
8.88
1.82
7.19
8.77
1.88
7.12
8.52
2.04
7.06
8.11
2.29
6.99
7.56
2.63
6.93
6.85
3.06
6.85
25 / 17.9
9.13
1.81
7.29
9.02
1.88
7.23
8.75
2.04
7.17
8.33
2.29
7.10
7.76
2.63
7.04
7.03
3.06
6.97
26 / 18.7
9.38
1.81
7.39
9.27
1.88
7.33
9.00
2.04
7.27
8.57
2.29
7.21
7.97
2.63
7.15
7.22
3.06
7.09
20 / 13.8
9.10
2.21
7.79
8.98
2.30
7.72
8.71
2.50
7.64
8.28
2.82
7.56
7.69
3.26
7.49
6.94
3.82
6.94
22 / 15.4
9.61
2.23
8.00
9.49
2.32
7.92
9.20
2.53
7.84
8.74
2.86
7.76
8.12
3.32
7.68
7.32
3.89
7.32
23 / 16.2
9.88
2.23
8.08
9.75
2.33
8.00
9.45
2.54
7.93
8.98
2.88
7.85
8.34
3.34
7.77
7.52
3.93
7.52
24 / 17.1
10.2
2.24
8.12
10.0
2.34
8.04
9.74
2.56
7.97
9.25
2.91
7.89
8.59
3.38
7.82
7.75
3.97
7.74
25 / 17.9
10.5
2.25
8.24
10.3
2.35
8.17
9.99
2.58
8.09
9.50
2.93
8.02
8.82
3.41
7.95
7.96
4.01
7.88
26 / 18.7
10.7
2.26
8.40
10.6
2.37
8.33
10.3
2.60
8.26
9.74
2.95
8.19
9.05
3.44
8.12
8.18
4.05
8.06
20 / 13.8
12.6
2.38
11.4
12.2
2.65
11.2
11.7
2.96
11.0
11.1
3.29
10.8
10.5
3.65
10.5
9.68
4.05
9.68
22 / 15.4
13.3
2.36
11.7
12.9
2.65
11.4
12.3
2.95
11.2
11.7
3.28
11.0
11.0
3.64
10.8
10.2
4.02
10.2
23 / 16.2
13.7
2.36
11.8
13.2
2.64
11.5
12.7
2.94
11.3
12.0
3.27
11.1
11.3
3.63
10.9
10.5
4.01
10.5
24 / 17.1
14.1
2.35
11.8
13.6
2.63
11.6
13.0
2.93
11.4
12.4
3.26
11.1
11.6
3.61
10.9
10.8
3.99
10.7
25 / 17.9
14.4
2.34
11.9
13.9
2.61
11.7
13.4
2.92
11.5
12.7
3.24
11.3
11.9
3.59
11.1
11.0
3.97
10.9
26 / 18.7
14.8
2.32
12.1
14.3
2.60
11.9
13.7
2.90
11.7
13.0
3.22
11.5
12.2
3.57
11.3
11.3
3.94
11.1
20 / 13.8
18.3
3.32
15.2
17.6
3.65
14.8
16.9
4.04
14.5
16.1
4.50
14.1
15.3
5.01
13.8
14.4
5.57
13.4
22 / 15.4
19.3
3.35
15.8
18.6
3.69
15.4
17.8
4.08
15.1
17.0
4.53
14.7
16.1
5.05
14.4
15.2
5.62
14.0
23 / 16.2
19.8
3.37
16.1
19.1
3.70
15.8
18.3
4.10
15.4
17.4
4.55
15.1
16.5
5.07
14.7
15.6
5.64
14.3
24 / 17.1
20.4
3.39
16.3
19.7
3.72
15.9
18.8
4.12
15.6
17.9
4.57
15.2
17.0
5.09
14.9
16.0
5.67
14.5
25 / 17.9
21.0
3.40
16.5
20.2
3.74
16.1
19.3
4.13
15.8
18.4
4.59
15.4
17.4
5.11
15.1
16.4
5.70
14.7
26 / 18.7
21.5
3.42
16.6
20.7
3.75
16.2
19.9
4.14
15.9
18.9
4.60
15.5
17.9
5.13
15.2
16.8
5.72
14.8
20 / 13.8
20.2
3.89
16.4
19.7
4.18
16.2
19.1
4.56
16.0
18.3
5.05
15.8
17.4
5.64
15.5
16.3
6.32
15.3
22 / 15.4
21.4
3.93
16.8
20.8
4.23
16.6
20.2
4.62
16.4
19.3
5.11
16.1
18.4
5.69
15.9
17.2
6.37
15.6
23 / 16.2
22.0
3.95
17.0
21.4
4.25
16.8
20.7
4.65
16.5
19.9
5.14
16.3
18.9
5.72
16.0
17.7
6.40
15.8
24 / 17.1
22.7
3.97
17.1
22.1
4.28
16.8
21.4
4.68
16.6
20.5
5.17
16.3
19.5
5.76
16.1
18.3
6.44
15.9
25 / 17.9
23.3
4.00
17.3
22.7
4.30
17.1
22.0
4.70
16.8
21.1
5.20
16.6
20.0
5.79
16.3
18.8
6.47
16.1
26 / 18.7
23.9
4.02
17.6
23.3
4.33
17.3
22.6
4.73
17.1
21.7
5.23
16.8
20.6
5.82
16.6
19.3
6.50
16.4
20 / 13.8
24.0
4.54
21.9
23.3
4.84
21.6
22.5
5.26
21.4
21.5
5.81
21.1
20.5
6.49
20.5
19.3
7.29
19.3
22 / 15.4
25.3
4.57
22.5
24.5
4.87
22.2
23.7
5.30
21.9
22.7
5.87
21.6
21.6
6.56
21.3
20.3
7.39
20.3
23 / 16.2
26.0
4.59
22.8
25.2
4.89
22.5
24.3
5.33
22.1
23.2
5.90
21.8
22.1
6.60
21.5
20.9
7.43
20.9
24 / 17.1
26.8
4.61
22.9
25.9
4.92
22.5
24.9
5.36
22.2
23.9
5.93
21.9
22.8
6.64
21.5
21.5
7.48
21.2
25 / 17.9
27.5
4.63
23.2
26.6
4.94
22.8
25.6
5.38
22.4
24.5
5.96
22.1
23.3
6.67
21.7
22.1
7.52
21.4
26 / 18.7
28.2
4.64
23.5
27.2
4.96
23.1
26.2
5.41
22.7
25.1
5.99
22.3
23.9
6.71
22.0
22.6
7.55
21.6
Ta = evaporator inlet air temperature
DB = dry bulb
WB = wet bulb
kWf = Cooling capacity in kW
kWe = Compressor power input in kW
kWs = sensible cooling capacity (kW)
4
&/26(&21752/
',0(16,21$/'5$:,1*
6L]H
Dimensional dwg. no.
A
B
C
mm
mm
mm
1
750
490
1800
1
750
490
1800
1
750
490
1800
1
925
490
1800
1
1250
490
1800
1
1250
490
1800
1
1500
490
1800
',0(16,21$/'5$:,1*
A
B
(I) BOTTOM OUTLET (M3)
(II) TOP OUTLET (M5)
C
(1) ELECTRICAL PANEL
(2) EVAPORATOR COIL
(3) HOT WATER COIL OR HOT GAS COIL (OPTIONAL)
(4) HEATER SECTION (OPTIONAL)
(5) OUTLET FAN (DOWNWARDS OR UPWARDS)
(6) AIR FILTER
(7) STEAM HUMIDIFIER (OPTIONAL)
(8) COMPRESSOR
(9) MICROPROCESSOR KEYBOARD
(10) MAIN ISOLATOR SWITCH
(11) POWER INPUT AND CONNECTIONS
(12) PLATE EXCHANGER
,
,,
1
10
9
BT02G033GB-00
6
4
3
2
7
11
8
5
5
&/26(&21752/
BT02G033GB-00
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