14
Air conditioner operating conditions
For proper performance, run the air conditoner under the following temperature conditions
If air conditioner is used beyond the above conditions, safely protection features may come into operation
Thermal head min.- max. 4-6
Water circuit pressure (bars) 1-3
Max.storage temperature 55
Water and glycol solutions used as a thermal
During winter leaving the unit unused, please drain
water out completely from unit if no antifreeze were
charged into pipeline, or keep power on(at standby
or off status) and ensure that water is contained
inside of unit.
When ambient temperature lower 5
running
cooling mode must be charged antifreeze. Refer to
upper parameters for the charged volume.
vector in the place of water reduce the performance
of the unit. Multiply the performance figures by the
values given in the following table.
FOULING FACTORS
The performance data given refer to conditions with clean
evaporator plates (fouling factor=1).For different fouling
factors,multiply the figures in the performance tables by
the coefficient given in the following table.
OPERATION LIMITS
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Outdoor temperature: -5
đ
~
đ
Cooling operation
Water outlet temperature: 4
đ
~
đ
Outdoor temperature: -15
đ
~
đ
Heating operation
If air conditioner is used beyond the above conditions, safely protection features may come into operation
Note: When the outdoor temperature is too low, the unit in standby mode will activate frost protection, forced to run
pumps or forced heating operation to protect the unit water system.
IG M
DELIVERY WATER TEMPERATURE
OUTSIDE AIR TEMPERATURE
35 54
-15
0
27
t(°C)
t(°C)
40
C G M
DELIVERY WATER TEMPERATURE
OUTSIDE AIR TEMPERATURE
4 7 15 20
-5
35
46
t(°C)
t(°C)
Water outlet temperature: 30ºC~54ºC
Cooling capacity
modification
Power
modification
Water
resistance
Water flow
modification
0
1.000
1.000
1.000
1.000
0.000
10
0.94
0.99
1.11
1.019
-4.000
20
0.973
0.995
1.26
1.051
-9.000
30
0.965
0.992
1.42
1.092
-16.000
40
0.960
0.99
1.791
1.145
-23.000
50
0.950
0.93
2.100
1.200
-37.000
Modification coefficient
Quality of
glycol/%
Freezing
point/
ć
0
1.000
1.000
1.000
1.000
0.000
10
0.976
0.996
1.071
1.000
-3.000
20
0.961
0.992
1.19
1.016
-7.000
30
0.94
0.9
1.30
1.034
-13.000
40
0.93
0.94
1.72
1.07
-22.000
50
0.925
0.975
2.150
1.125
-35.000
Modification coefficient
Cooling capacity
modification
Power
modification
Water
resistance
Water flow
modification
Quality of
glycol/%
Freezing
point/
ć
If no glycol is added, the water must be drained out when there is a
power failure.
PROPYLENE GLYCOL
ETHYLENE GLYCOL
PROTECTION THE WATER CIRCUIT AGAINST FREEZING
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