5
2 - Features
2.1 - Physical and electrical data
42GM ItM
2 pipes
4 pipes
+ electric heater
nominal air flow
l/s (m
3
/h)
125 (450)
125 (450)
total cooling capacity*
kW
3.33
2.87
sensible heating capacity*
kW
2.31
2.12
Heating capacity**
kW
-
1.5
Power supply 230 V- 1 ph - 50 Hz
U %
+/- 10
+/- 10
operating weight (6-row coil)
kg
30
30
Water coil
3/8” copper tubes, aluminium fins,
test pressure 24 bar, operating pressure 16 bar
Water coil volume
l
1.42
1.22 + 0.2
Ptc electric heater (Ptc = positive temperature coefficient)
Max. capacity at nominal air flow
kW
1.88
-
Current draw (± 10%)
A
11
-
Power input at zero flow
W
100
-
Safety thermostat with automatic reset
- cut-out temperature (conforms with CE)
°C
70
-
Fan
Centrifugal fan, single wheel
double inlet
double inlet
Nominal air flow
l/s (m
3
/h)
125 (450)
125 (450)
Static pressure at nominal air flow (without air purifier)
Pa
210
210
Fan motor
230 V-1 ph-50 Hz, 2-pole open asynchronous, permanent capacitor, inherent
overload protection, class B insulation, varnish class F, connected to a speed
controller
Protection index
IP
44
44
Max. power input at 230 VAC
W
185
185
Min. output from electronic speed controller (RMS)
V
80
80
Nominal current
A
0.85
0.85
Starting current
A
3.64
3.64
air filter
Throwaway, 48 mm thick, efficiency F6 according to EN 779, EU6 according
to EUROVENT 4/5), fire rating medium M1, metal frame
Dimensions
mm
265 x 255
265 x 255
Pressure drop, clean, at 125 l/s (450 m
3
/h)
Pa
53
53
air purifier (option)
Number of UV-C lamps
1
1
Nominal current consumption
A
0.09
0.09
Pressure drop at 125 l/s (450 m
3
/h)
Pa
20
20
Fresh air connection
External diameter
mm
125
125
Minimum constant air flow (-10 %, +20 %)
l/s (m
3
/h)
8.3 (30)
8.3 (30)
Minimum constant air flow (-10 %, +20 %)
l/s (m
3
/h)
44.4 (160)
44.4 (160)
Min./max. variable air flow (optional motorised valve)
l/s (m
3
/h)
0/55 (0/200)
0/55 (0/200)
∆P (upstream/downstream)
- controller at 8.3 l/s (30 m
3
/h)
Pa
50/200
50/200
- controller at 44.4 l/s (160 m
3
/h)
Pa
70/200
70/200
Min. available pressure in the upstream air duct (motorised valve)
Pa
180
180
Water connections
42GM modules are designed and tested for 16 bar operating pressure. The total operating circuit of the 42GM is guaranteed for an operating pressure of 10 bar.
Contact your local Carrier representative for advice when an application calls for an operating pressure of 10 bar.
* Based upon water entering at 7°C, room air at 27°C dry bulb, 47% relative humidity, 5 K ∆t and nominal air flow.
Capacity takes account of the fan-motor assembly heat.
** Based upon water entering at 50°C, room air at 19°C, 10 K ∆t and nominal air flow.
Capacity takes account of the fan-motor assembly heat.