Haier InoSens MRV SI AU032FSEUA Service Manual page 24

Notes for E:
(1) The main pipe (from outdoor to the first branch pipe) diameter should be enlarged one size
when the single way pipe length is over 90m.
(2) When in cooling mode, outdoor is lower than indoor; or when in heating mode, outdoor is higher than indoor, the
compensation factor should be decreased the below value from figure E.
Vertical height drop between
indoor and outdoor
Adjustment factor
(2) Calculation method of heating capacity
----heating capacity to be known = heating capacity*(A*B*C*D*E*F) W
A. Capacity compensation value of indoor
air dry-bulb temperature condition
1.2
1.1
1.0
0.9
0.8
15 20
Indoor air dry-bulb temperature (°C)
C. Capacity modification value under airflow
variation rate of indoor unit group (only for
duct unit)
1.1
1.0
0.9
80 90 100
Airflow variation rate (%)
5m 10m 15m
0.003 0.006 0.009 0.012 0.015 0.018
24
110 120
20m 25m 30m
B. Capacity compensation value of outdoor air
wet-bulb temperature condition
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
-15 -10 -5
Outdoor air wet-bulb temperature (°C)
D. Capacity compensation suitable for
total capability of indoor unit group
120
100
80
60
40
20
0 20
40 60 80 100 120 140
Total capacity of indoor unit group (%)
22
0 5 10 15