TM MINI C VRF 8 12KW

123
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PVC piping
Nominal
diameter (mm)
Capacity (L/h) Remarks
PVC25 25 220
Branch piping only
PVC32 32 410
PVC40 40 730
Branch or main piping
PVC50 50 1440
PVC63 63 2760
PVC75 75 5710
PVC90 90 8280
5.4
Drain piping for units with lift pumps should take account of the following additional considerations:
A downward sloping section should immediately follow the vertically rising section adjacent to the unit, otherwise a
water pump error will occur. Refer to Figure 3-5.7.
Air vents should not be installed on vertically rising sections of drain piping, otherwise water may be discharged
through the air vent or water flow may be impeded.
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5.5
Caution
Ensure that all joints are firm and once the drain piping is all connected conduct a water tightness test and
water flow test.
Do not connect air conditioner drain piping to waste, rainwater or other drain piping and do not let air
conditioner drain piping come into direct contact with the ground.
For units with drain pumps, test that the drain pump functions properly by adding water to the unit s drainage
pan and running the unit. To allow inspection and maintenance, the pipe clamps shipped with units should be
used to attach drain piping to indoor units adhesive should not be used.