Correction Factor Owing To Defrosting Operation - Hisense Hi-Therma Series Service Handbook

Capacity and selection data

3.3.3 Correction Factor owing to defrosting operation

The heating capacity in the preceding paragraph does not include defrost operation periods.
Therefore, capacity should be corrected as follows:
Corrected Heating Capacity = Correction Factor x Heating Capacity
Outdoor Inlet Air Temp.
(°C DB) (Humidity=85% RH)
Correction Factor
Heating
Capacity
NOTES:
● The correction factor is not available for special conditions like snowfall or operation in a transitional period.
● When the outdoor inlet air temperature is higher than 7 °C, this correction coefficient is 1.0. And when the outdoor inlet
air temperature is lower than -7 °C, this correction coefficient is 0.95.
● If the outdoor inlet air temperature is not shown in the above table (for example, 1 °C), an interpolation should be carried
out using the values before and after (0 °C and 3 °C) the outdoor inlet air temperature.
-7 -5
0.95 0.93
Heating
capacity
decreases when
defrosting
1 cycle
-3 0
0.88 0.85
Defrosting time (max 9 min.)
Time
32
3 5
0.87 0.90
7
1.00