35
1. Standard length of connection pipe
ƔPPP
4. The additional refrigerant oil and refrigerant charging required after prolonging
connection pipe
Ɣ $IWHUWKHOHQJWKRIFRQQHFWLRQSLSHLVSURORQJHGIRUPDWWKHEDVLVRI
VWDQGDUGOHQJWK\RXVKRXOGDGGPORIUHIULJHUDQWRLOIRUHDFKDGGLWLRQDOP
of connection pipe.
Ɣ
The calculation
P
ethod of additional refrigerant charging a
P
ount (on the
E
asis
of liquid pipe):
Ɣ%DVLQJRQWKHOHQJWKRIVWDQGDUGSLSHDGGUHIULJHUDQWDFFRUGLQJWRWKH
UHTXLUHPHQWDVVKRZQLQWKHWDEOH7KHDGGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQW
SHUPHWHULVGL
f
IHUHQWDFFRUGLQJWRWKHGLDPHWHURIOLTXLGSLSH6HHWKH
IROORZLQJVKHHW
$GGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQW
= prolonged length of liquid pipe ×
DGGLWLRQDOUHIULJHUDQWFKDUJLQJDPRXQWSHUPHWHU
Cooling
FDSDFLW\
Cooling
FDSDFLW\
5000Btu/h
(1465W)
24000Btu/h
:
%WXK
(2051W)
%WXK
:
9000Btu/h
:
36000Btu/h
:
12000Btu/h
(3516W)
42000Btu/h
(12306W)
%WXK
:
%WXK
(14064W)
Max height
difference
Max height
difference
Max length
of connec-
tion pipe
Max length
of connec-
tion pipe
15
25
5
10
15
30
5
10
15
30
5
20
20
30
10
20
25
30
10
20
0LQOHQJWKRIFRQQHFWLRQSLSHLVP
0D[OHQJWKRIFRQQHFWLRQSLSHDQGPD[KLJKGL
fference.
Configuration of connection pipe
