CHUNLAN -B - Connection of Indoor Unit with Outdoor Unit; Installation of Wall-Penetrating Tube; Installation of Condensate Drain Pipe; Connections

Installation
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VI. Connection of indoor unit with outdoor unit
1. Installation of wall-penetrating tube
(1) Wall-penetrating tube shall be hard polythene tube of about Φ90;
(2) Determine drilling position on wall by referencing indoor unit installation position and
connecting pipe position. Hole size shall be Φ95~100mm and outdoor side of the hole shall
be lower than indoor side by 5~10mm.
(3) Determine length of wall-penetrating tube according to wall thickness (longer than wall
thickness by about 10mm). Insert the tube in the hole drilled on wall for threading of
connecting tube, connecting cable and drainage tube.
Note: Use sealing putty to seal clearances between penetrating tube and hole, between
penetrating tube and connecting tube, and between connecting cable and drain pipe, so as to
prevent ingress of rainwater and air.
2. Installation of condensate drain pipe
(1) Condensate drain pipe shall be normal PVC pipe of Φ16~17 inner diameter (FR95-C,
FR125-C/S water discharge pipe inner diameter is Φ 17 while FRD23-B, FRD35-B,
FRD50-B water pipe inner diameter is Φ20~21).
(2) Install user supplied drain pipe on indoor unit drain pipe outlet, and seal with glue;
(3) Condensate drain pipe shall have 1/50~1/100 down slope, be supported by hard frame, not
bent as return water type, and its tip shall not be dipped in water;
(4) Drain pipe shall be wrapped with thermal insulation material to avoid water leak due to
dewing.
3. Connections
(1) Unscrew nuts on shutoff (or ball) valves on indoor unit pipeline and outdoor unit;
(2) Drip small amount of frozen oil at 2 bell mouths of connecting pipe, align bell mouth
center with pipe connector, then tighten nut with spanner.
Pipe supplied with indoor unit Conical nut
Auxiliary pipe
Spanner
Torque spanner