Gree GWH09UB-K3DNA4F - Page 126

134
Installation and Maintenance
Service Manual
F:Inspection
Ɣ&KHFNWKHTXDOLW\RIH[SDQGLQJSRUW,IWKHUHLVDQ\EOHPLVKH[SDQGWKH
SRUWDJDLQDFFRUGLQJWRWKHVWHSVDERYH
The len
g
th is e
q
ual
Improper expanding
leaning
damaged
surface
crack uneven
thickness
Smooth surface
Downwards
Pipe
Shaper
Union pipe
Pipe
Expander
Hard
mold
Pipe
Pipe
Pipe cutter
Leaning Uneven Burr
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
$&XWWKHSLS
Ɣ&RQ¿UPWKHSLSHOHQJWKDFFRUGLQJWRWKHGLVWDQFHRILQGRRUXQLWDQGRXWGRRUXQLW
Ɣ&XWWKHUHTXLUHGSLSHZLWKSLSHFXWWHU
%5HPRYHWKHEXUUV
Ɣ5HPRYHWKHEXUUVZLWKVKDSHUDQGSUHYHQWWKHEXUUVIURPJHWWLQJLQWRWKHSLSH
&3XWRQVXLWDEOHLQVXODWLQJSLSH
'3XWRQWKHXQLRQQXW
Ɣ5HPRYHWKHXQLRQQXWRQWKHLQGRRUFRQQHFWLRQSLSHDQGRXWGRRUYDOYHLQVWDOO
WKHXQLRQQXWRQWKHSLSH
(([SDQGWKHSRUW
Ɣ([SDQGWKHSRUWZLWKH[SDQGHU
Ɣ$LVGLIIHUHQWDFFRUGLQJWRWKHGLDPHWHUSOHDVHUHIHUWRWKHVKHHWEHORZ
2XWHUGLDPHWHUPP
A(mm)
Max Min
Ɏ 1.3 0.7
Ɏ 1.6 1.0
Ɏ 1.8 1.0
Ɏ 2.4 2.2
Appendix 3: Pipe Expanding Method
Note:
Note: