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8
2.4 - Physical and electrical data
42EM Atmosphera
Size 1.0
Size 2.0
Size 2.1
Size 2.2
Size 2.3
Nominal air flow at high speed
l/s (m
3
/h)
155 (558)
192 (690)
182 (655)
272 (980)
325 (1170)
Static pressure available at nominal air flow
Pa
50
50
50
50
50
(unit without supply and return air plenum)
Total cooling capacity - chilled water coil*
kW
3.49
4.62
4.41
6.11
7.02
Sensible capacity - chilled water coil*
kW
2.73
3.52
3.34
4.77
5.56
Heating capacity - hot water coil**
kW
1.61
1.93
1.85
2.44
2.74
Power supply 230 V - 1 ph - 50 Hz
U %
± 15
± 15
± 15
± 15
± 15
Operating weight (base unit and return air plenum)
kg
29+7
44+10
46+10
46+10
46+10
Water coil
Copper tubes Ø 3/8”
Aluminium fins, purge valve, female connection
•
Test pressure
kPa
2400
2400
2400
2400
2400
•
Operating pressure
kPa
1600
1600
1600
1600
1600
2-row coil
•
Connection
1/2” nut (gas)
•
Water content
l
1
1.7
1.7
1.7
1.7
Monobloc 4-row coil
•
Cooling connection
1/2” nut (gas)
•
Heating connection
1/2” nut (gas)
•
Water content
-
cooling
l
1
1.7
1.7
1.7
1.7
-
heating
l
0.2
0.3
0.3
0.3
0.3
Electric heater - resistance wire type
•
Power supply: 230 V - 1 ph - 50 Hz
U %
± 15
± 15
± 15
± 15
± 15
•
Heating capacity - excluding fan heat (+5/-10 %)
W
500
1000
1000
2000
2000
•
Self-resetting safety thermostat cut-out temperature
°C
75
75
75
75
75
•
Over-temperature thermofuse link, fusing temperature
°C
170
170
170
170
170
•
Current absorbed
A
2.17
4.35
4.35
8.7
8.7
•
Minimum heater air flow required
l/s (m
3
/h)
28 (100)
42 (150)
42 (150)
55 (200)
55 (200)
Fan
Forward-curved centrifugal fan
• Number of centrifugal wheels
1
2
2
2
2
Motor
Supply voltage 230 V - 1 ph - 50 Hz, 4 pole asynchronous, internal overload protection,
permanent capacitor, class B winding insulation, varnish class F
•
Maximum absorbed power at 230 V***
W
119
110
128
182
229
•
Nominal current***
A
0.52
0.52
0.60
0.82
1.02
•
Starting current
A
1.8
1.4
3.0
3.0
3.0
Air filter
Throwaway, fire rating medium: M1
•
Dimensions
mm
208 x 578
208 x 978
208 x 978
208 x 978
208 x 978
•
Filter efficiency: 85% (gravimetric) - G3
Fresh air connection
Outside diameter
mm
125
125
125
125
125
Constant minimum air flow (-10% - +20%)
l/s (m
3
/h)
8.3 (30)
8.3 (30)
8.3 (30)
8.3 (30)
8.3 (30)
Constant maximum air flow (-10% - +20%)
l/s (m
3
/h)
44.4 (160)
44.4 (160)
44.4 (160)
44.4 (160)
44.4 (160)
∆
P (upstream/downstream):
- Controller 8.3 l/s (30 m
3
/h)
Pa
50-200
50-200
50-200
50-200
50-200
- Controller 16.7 to 44.4 l/s (60 to 160 m
3
/h adjustable)
Pa
70-200
70-200
70-200
70-200
70-200
Variable air flow (optional motorised valve) - min./max.
l/s (m
3
/h)
0/55 (0/200)
0/55 (0/200)
0/55 (0/200)
0/55 (0/200)
0/55 (0/200)
Min. available pressure in upstream fresh air duct
(motorised valve)
Pa
180
180
180
180
180
Atmosphera water connections
The water circuit in the Atmosphera units is guaranteed for an operating pressure of 1000 kPa, although the Atmosphera units components are individually
designed and tested for a pressure of 1600 kPa.
For applications requiring an operating pressure of more than 1000 kPa, please contact your local Carrier representative.
Legend:
*
Based on an entering water temperature of 7°C, entering air at 27°C dry bulb and 47% relative humidity, and a water temperature difference of 5 K at maximum
air flow (Eurovent conditions).
**
Based on an entering water temperature of 50°C, entering air at 20°C and a water temperature difference of 10 K at maximum air flow (Eurovent conditions).
***
Refer to electrical data tables.