Carrier X-POWER Series Service Manual page 119

Carrier service manual R410a DC Inverter 60Hz
plastics adhesive tape. The width of the adhesive tape shall not be less than 50mm to ensure fastness
and prevent condensation.
7. The drainage pipe of air conditioner shall be installed separately with other waste pipe, rainwater pipe
and other drainage pipe in building.
8. The slope of drainage pipe shall be kept above 1/100.
9. In case 1/100 slope can not need, consider to use larger-sized pipe and use its diameter to create
slope.
10. Conflux towards horizontal pipe shall come from upside as much as possible. If it comes from
transverse route, reflux is easy to be created.
11. The end of drainage pipe shall not contact with ground directly.
4.1.3 Caution
1. The drainage pipe diameter shall meet the draining requirement of indoor unit.
2. The outlet air vent cannot be installed nearby the lifting pump of the indoor unit.
3. Check whether condensate water pump can be started up and shut down normally by infusing water
into the water-containing plate of indoor unit and powering on.
4. All joints shall be firm (particularly PVC pipe).
5. The drainage pipe is not allowed to turn to adverse slope, horizontal, and bending.
6. Dimension of drainage pipe shall be not less than the connecting mouth size of drain piping to
indoor unit.
7. Work out thermal insulation of drainage pipe, otherwise it is easy to produce condensation. Thermal
insulation processing shall be continued to the connecting part of indoor unit.
8. Indoor units with different draining pattern shall not share the same concentrated drainage pipe.
9. Discharge of condensate water cannot influence normal life and working of other people.
10. As for long drainage pipe, hanging bolt shall be used to ensure 1/100 slope without bending PVC
pipe.
※ The support gap of horizontal pipe is 0.8-1.0mm. If the gap is too large, it shall produce bending and
air resistance, while air resistance could seriously influence smoothness of water flow to cause abnormal
water level. As shown in following figure:
4.2 Water Storing Elbow of Drainage Pipe
4.2.1 To indoor unit with large negative pressure at the outlet of water-containing plate, the drainage
Installation 137