Lennox Relax series Installation Manual page 11

Settlement of outdoor unit
•
Anchor the outdoor unit with a bolt and nut 10 or
8 tightly and horizontally on a concrete or rigid
mount.
Model
< 12000 Btu/h
≥ 12000 Btu/h
Drain joint installation
Fit the seal into the drain elbow, then insert the drain
joint into the base pan hole of outdoor unit, rotate 90
to securely assemble them. Connecting the drain joint
with an extension drain hose (Locally purchased), in
case of the water draining off the outdoor unit during
the heating mode.
REFRIGERANT PIPING CONNECTION
1. Flaring work
Main cause for refrigerant leakage is due to defect in
the flaring work. Carry out correct flaring work using
the following procedure:
A: Cut the pipes and the cable.
1. Use the piping kit accessory or pipes purchased
locally.
2. Measure the distance between the indoor and the outdoor unit.
3. Cut the pipes a little longer than the measured distance.
4. Cut the cable 1.5m longer than the pipe length.
B: Burr removal
1. Completely remove all burrs from the cut cross section of
pipe/tube.
2. Put the end of the copper tube/pipe in a downward
direction as you remove burrs in order to avoid dropping
burrs into the tubing.
8 Installation instructions
A (mm) B (mm)
458 250
548 266
548 276