A/A DC INVERTER U-MATCH AIR CONDITIONERS INSTALLATION
87
Figure 3-1-1
Align the flared end of copper pipe with the center of threaded connector and use your hands to securely
tighten the flared nuts.
Tighten the flared nuts with torque wrench, until you hear a ‘KATA” sound from the torque wrench, as shown in
Fig. 3-1-1. See Table 3-1-1 for the torque required for tightening the nuts.
Figure 3-1-2
Form 3-1-1 the tightening torque needed for tightening nut
Pipe diameter
Tightening Torque
1/4
"(
Inch
)
15-30
(N·m)
3/8
"(
Inch
)
35-40
(N·m)
5/8
"(
Inch
)
60-65 (N·m)
1/2
"(
Inch
)
45-50
(N·m)
3/4
"(
Inch
)
70-75
N·m)
7/8
〞(
Inch
)
80-85
(N
·
m)
The bend of pipe shall not be too small; otherwise the pipe might be broken. Please use pipe bender to bend
the pipe.
Generally, the pipe shall be welded with the weld junction upward or horizontal. Avoid welding with the pipe
opening downward. (Downward welding is easy to cause defects, which may affect the weld quality or even
cause leakage, as show in Fig. 3-1-3).
Figure 3-1-3
Use sponge to wrap the connection pipes and connectors that are not thermally insulated, and tighten with
plastic tapes.
2
)
Vacuum and Leakage Detection
Remove the cap from liquid valve and gas valve.
Align with the pipe center and tighten the jointing nuts adequately with your hand.
Tighten the nuts with wrench.
Remove the 1-way cap from the gas valve.
Summary of Contents for U-MATCH GFH09K3CI
Page 4: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 1 PRODUCT...
Page 25: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 22 CONTROL...
Page 27: ...A A DC INVERTER U MATCH AIR CONDITIONERS CONTROL 24 1 2 Heating Operation...
Page 62: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 59 5 3 7 Dimensions...
Page 63: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 60 INSTALLATION...
Page 102: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 99 MAINTENANCE...
Page 121: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 118 IPM module protection...
Page 122: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 119 DC busbar overvoltage protection...
Page 123: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 120 DC busbar undervoltage protection...
Page 124: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 121 Abnormal noise from PFC inductor...
Page 125: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 122 Radiator overheat protection...
Page 126: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 123 Tripping...
Page 130: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 127 Tripping...
Page 138: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 135 Model GUHD48NM3CO Model GUHD60NM3CO...
Page 183: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 180 7 8 A B C 9 A B 0 5 0 1kgf c C 10 A B...
Page 195: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 192 4 5 6...
Page 197: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 194 5 6 A B 0 5 0 1kgf c C 7 8 A B C...
Page 227: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 224 Model GUHD24NK3CO Exploded View...
Page 247: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 244 Model GKH18K3CI Exploded View...
Page 264: ...261 JF00300705...