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–EIMAC00708-16EN - 13/76
Table 6
– ERAD 250E ÷ 490E-SS - HFC 134a - Technical Data
Units Size
250
310
370
440
490
Capacity (1)
Cooling
kW
252
306
370
435
488
Capacity control
Type
---
Stepless
Minimum capacity
%
25
25
25
25
25
Unit power input (1)
Cooling
kW
76.6
92.8
122
147
161
EER (1)
---
3.28
3.30
3.04
2.96
3.03
Casing
Colour
---
Ivory White
Material
---
Galvanized and painted steel sheet
Dimensions
Unit
Height
mm
2273
2273
2273
2273
2273
Width
mm
1292
2236
2236
2236
2236
Length
mm
3965
3070
3070
3070
3070
Weight
Unit
kg
1936
2353
2557
2640
2679
Operating Weight
kg
1981
2414
2621
2713
2756
Air heat exchanger
Type
---
High efficiency fin and tube type
with integral subcooler
Fan
Type
---
Direct propeller type
Drive
---
DOL
Diameter
mm
800
800
800
800
800
Nominal air flow
l/s
21150
32767
32767
31725
31725
Model
Quantity
No.
4
6
6
6
6
Speed
rpm
920
920
920
920
920
Motor input
kW
1.75
1.75
1.75
1.75
1.75
Compressor
Type
---
Semi-hermetic
single screw compressor
Oil charge (3)
l
13
16
19
19
19
Quantity
No.
1
1
1
1
1
Sound level
Sound Power
Cooling
dB(A)
94.2
94.2
94.5
94.5
95.2
Sound Pressure (2)
Cooling
dB(A)
75.1
75.0
75.3
75.3
76.0
Refrigerant circuit
Refrigerant type
---
R-134a
R-134a
R-134a R-134a
R-134a
Refrigerant charge (3)
kg.
32
45
45
54
58
N. of circuits
No.
1
1
1
1
1
Piping connections
Suction
mm
76
76
139.7
139.7
139.7
Liquid
mm
28
35
35
35
35
Safety devices
High discharge pressure (pressure switch)
High discharge pressure (pressure transducer)
Low suction pressure (pressure transducer)
Compressor motor protection
High discharge temperature
Low oil pressure
Low pressure ratio
High oil filter pressure drop
Phase monitor
Notes (1)
Cooling capacity, unit power input in cooling and EER are based on the following conditions: SST 7°C;
ambient 35°C, unit at full load operation.
Notes (2)
The values are according to ISO 3744 and are referred to: SST 7°C, ambient 35°C, full load operation.
Notes (3)
Refrigerant and oil charge is for the unit only; doesn't include external suction and liqui d line. Units are
shipped without refrigerant and oil charge; holding charge nitrogen 1 bar
