AUX-DC inverter ARV outdoor unit individual series technical manual
109
5. Insulation
Thermal insulation wrapping of pipe
Thermal insulation materials should be used for drainage pipe and refrigerant pipe to prevent
condensation or water leakage.
Note:
Wrap refrigerant pipe with thermal insulation materials of good insulation performance (＞120℃).
Notice for high-humidity environment: the A/C system is verified by condensation conditions test.
However, it may subject to dripping if working in high-humidity (condensation temperature ＞23℃)
environment for a long time. In this case, please add the following thermal insulation materials:
The thermal insulation materials should be glass fiber thermal insulation materials with 10~20mm
thickness.
Sealing of Wall Opening
After installing pipe and drainage pipe, it’s necessary to seal the gap among wall opening, refrigerant pipe,
drainage pipe and electric wire with mortar or putty to prevent capacity degradation or water leakage
caused by rainwater or foreign matter from ingress into room and A/C system.
If outdoor unit is higher than indoor unit, it’s necessary to bend refrigerant pipe to ensure the lowest point
of the pipe is lower than wall opening and prevent rainwater flowing into room or A/C system along the
tubing.
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