Install The Drain Pipe; Drainpipe Connection; Drainage Test - Airwell CDM Série Manuel D'installation

2. INDOOR UNIT INSTALLATION

2.4 INSTALL THE DRAIN PIPE

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.

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

Connect the drainage test during trial operation.
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
Indoor unit
Pipe clamp Flexible hose
Drain hose connection port (O.D.:Φ25)
<200mm
Drain hose connection port
PVC water pipe
PVC adhesive
1.0-1.5m
Lean over 1/100
GB-8