DC INVERTER MULTI VRF INSTALLATION
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● Drainage pipe
1. Installing drainage pipe
The diameter of drainage pipe should be larger than that of connecting pipe. (Polythene pipe:
dimension: outer diameter 25mm wall thickness≥1.5mm)
● Drainage pipe should be as short as possible and drooping gradient at least 1/100 to avoid
the formation of air bubble.
● If drainage hose cannot have enough drooping gradient, drainage raising pipe should be
installed.
● In order not to bend the drainage hose, the distance between hoisting stands should be 1 to
1.5m..
● With accessory drainage hose and clamp, insert the drainage hose into the drainage faucet,
and then tighten the clamp.
● Entwine the clamp of drainage hose with the big sponge to isolate heat.
● Isolate heat for the outdoor drainage host.
Sponge (Gray)
Drainage Hose
Notice for drainage raising pipe
● The installation height should be less than 280mm.
● A right angle should be formed by the drainage raising pipe and unit, which should not be
more than 300mm far from the unit.
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