Gree GKH(12)BA-K3DNA1A/I, Service Manual

Page: 68 / 207

Super Free Match
Service Manual
INSTALLATION
64
acceptable if pressure drop is within 0.02MPa. (With the
temperature change by 1 , the pressure will change by
℃
approx. 0.01MPa)
Thermal insulation
◆ The thermal insulation tube must meet the specifications.
◆ Seal between the thermal insulation pipes to avoid air entry.
Installation of outdoor unit
◆ Select the installing position correctly.
◆ Build the foundation according to the anchor bolt position and
the dimension of outdoor unit
◆ Build the damping device properly.
◆ Avoid sharp knock when handling the outdoor unit. The
inclination angle shall not be higher than 15°.
Connection of indoor unit and outdoor unit
◆
Tighten the nuts.
◆
Provide proper protection to the outdoor connection pipe,
communication wires and power supply.
Leakage detection under pressure
◆
Keep the pressure for 24 hours. Except for the influence by
temperature, it is deemed acceptable if pressure drop is within
0.02MPa. (With the temperature change by 1
℃ , the pressure
will change by approx. 0.01MPa).
Vacuuming
◆ Establish vacuum simultaneously in the gas pipe and liquid
pipe;
◆ The vacuuming time shall be long enough.
◆ Put still for 1 hour after vacuuming. It is deemed acceptable if
the pressure will not rise.
Add refrigerant
◆ Add refrigerant according to the volume as specified on the
engineering drawing.
Open the valve of outdoor unit
Commissioning of complete unit
Remarks:
a. Described above are general working procedures. The procedures might vary with the site conditions.
b. For detailed installation rules, please see the description in each chapter