Carrier 40VU007-0182-7G-QEE Installation And Owner's Manual page 16

Installation Procedures
• Make drainage slope down (slope is 1/50-1/100), and any part of drainage upheaval or cave in.
• Attention: make sure indoor unit side does not bear any pressure, and fix drainage near unit.
• Drainage can be normal rigid polyvinyl chloride pipe VP-25.
• When laying drainage pipe for multi units. As viewed in the picture, set main drainage 100mm
under each indoor unit draining mouth, and the main pipe should be more than VP-30 thick
plastic pipe.
• Take insulation measures to the following two parts of drainage pipe to avoid leakage. Drain pipe
fitting location:
After drainage test, install small tube shield onto drain pipe fitting and then use bigger tube
shield to cover smaller one and part of drainage pipe. And then use bandage to tie them. Rigid
polyvinyl chloride pipe of indoor unit.
• Do not set air vent in the drain pipe.
• Exit height of drain pipe should be 750mm higher than ceiling, so if facing any barrier while
laying drain pipe, you can use bending pipe or other attachments to avoid, and on this condition,
if the drain pipe from unit to pipe is too long, the water flow will increase when air conditioner is
off.
• Do not lay drain pipe at the place that can cause peculiar smell gas.
• Do not put drain pipe directly into sewer that can cause harmful gas.
cannot be immersed
10