(2)Calculation methed of refrigerating capacity----heating capacity to be
known=refrigerating capacity*(A*B*C*D*E*F)W
A.Capacity compensation
value of indoor air dry-bulb
temperature condition
B.Capacity compensation
value of outdoor air wet-bulb
temperature condition
+.2
+.-
+2
-
2
.-
.2
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.
;
/
RXWGRRUDLUZHWEXOEWHPSHUDWXUH
.
;
/
C.Capacity modification value
under air
fl
ow variation rate of
indoor unit group(only f
or
duct unit)
D.Capacity compensation
suitable for total capability of
indoor unit group
747
746
64? >6 ?6 766 776 786
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.,
/
&DSDFLW\PRGLILFDWLRQ
YDOXH
WRWDOFDSDFLW\RILQGRRUXQLWJURXS
.,/
786
766
>6
<6
:6
86
6
86 :6 <6 >6 766 786 796
Ws`mc`qc
b`o`bhsx
&DSDFLW\PRGLILFDWLRQYDOXH
vertical height drop between
indoor and outdoor
5m
10m
15m
20m
25m
30m
35m
40m
45m
50m
adjustment factor
0.003 0.006 0.009 0.012 0.015 0.018 0.021 0.024 0.027 0.030
Notes:
1.The refrigerant pipe should be thickened when the single way 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 the above
fi
gure.
34