26
minute and then repeat the procedure.
5).When the electronic scale displays the proper weight, disconnect the charge hose
from the 3-way valve’s service port immediately
If the system has been charged with liquid refrigerant while operating the air conditioner,
turn off the air conditioner before disconnecting the hose.
6). Mounted the valve stem caps and the service port
Use torque wrench to tighten the service port cap to a torque of 18N.m.
Be sure to check for gas leakage
5.4 Drain pipe of the indoor unit
1.Make sure the drain pipe is connected to the outdoor side downward;
2.The hard polyvinyl chloride(PVC)plastic pipe (external diameter 26 mm) sold is the
market is suitable for the attached soft drain pipe;
3.Please connect the Soft Drain Pipe with the Drain Pipe, then fix it with band;
4.If you have to connect the Drain Pipe indoors, to avoid condensing caused by air
intake, you must cover the pipe with heat-insulation material (polyethylene with Spe
cific Gravity of 0.03, at least 9 mm in thickness), and use Glue Band to fix it.
5.After the Drain Pipe has been connected, please check if the water drains out of
the pipe efficiently and has no leakage.
6.Refrigerant pipe and Drainpipe should be heat-insulated to avoid condensing and
water-dropping later on.
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