Install The Drain Pipe; Drainpipe Connection - Carrier 42QTD024DS-Serie Installationshandbuch

2. INDOOR UNIT INSTALLATION

2.4 INSTALL THE DRAIN PIPE

Remove the cover of the drain hose connection port
Insert the flexible hose to the drain hose port. Fix the flexible hose to the indoor unit with pipe clamp securely.
Install the flexible hose to the PVC water pipe (field supply, O.D.: Φ25) securely with PVC adhesive. Wrap the drain hose with
the insulation materials.

2.4.1 Drainpipe connection

Cassette unit is eqipped with the drain pump
The drain pipe should be install within 200mm from the flexible hose and then install horizontal drainpipe with a slope of 1/00 or more
and fix it by hanger space of 1.0~1.5m.
The flexible hose should not be installed upward position; it may cause water flow back to the indoor unit.
2.4.2 Drainage test
Open the cover of water supply intake by turning and pulling the cover.
Gradually insert about 2 liters of water into the indoor unit with stow tube.
Operate the unit under COOLING mode and check a drain pump pumping (a time lag of 1 minute is allowed before water flowing
out depending on the length of the drain pipe).
Check and confirm the water flows out through the drain hose.
Check the drain water drops at the end of the drain pipe.
Make sure there is no water leak at the drainage
Reassemble the cover of water supply intake.
GB-8
Indoor unit
Pipe clamp Flexible hose
Drain hose connection port
<200mm
Drain hose connection port
Cover
PVC water pipe (O.D.:Φ25)
PVC adhesive
1.0-1.5m
Lean over 1/100
Drain pipe
connection port
Water intake
Cover
Stow tube