Carrier 42QZL018 Manuel D'installation page 9

2. INDOOR UNIT INSTALLATION
2.2.3 Piping and drainage outlet for ceiling installation
NOTE:
The position of drain pipe interface can be selected according
to installation position. During the adjustment of drain hose,
the unsed interface should be sealed be rubber plug.
Drain hose outlet
2.2.4 Install the drain pipe for ceiling installation
Remove the cover of the drain hose connection port
Insert the flexible hose (field supply,I.D.: Φ25 ) to the drain hose port. Fix it to the indoor unit with pipe clamp (field supply) securely.
Install the flexible hose to the PVC water pipe securely with PVC adhesive. Wrap the drain hose with the insulation materials.
Indoor unit
Pipe clamp
Drain hose connection port (O.D.:Φ25)
Drainpipe connection
Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space 1.0~1.5m.
Install U-trap at the end of the drainpipe to prevent a nasty smell to reach the indoor unit.
Do not install the drainpipe to upward position. It may cause water flow back to the unit.
If the unit has built-in drain pump, ceiling installation is requested.
GB-8
Flexible hose
PVC water
pipe
PVC adhesive
Refrigeration pipes
Drain hose
Control box
Drain hose connection ports
Drain hose outlet
Cables outlet
Lean over 1/100 ~ 2/100
Piping connection ports
(Gas side and liquid side)
Piping outlet
1.0-1.5m
Lean over 1/100