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PIPING AND WIRING FOR OUTDOOR UNIT
ENGLISH
Connecting Pipe to Outdoor Unit
Connecting pipe to the outdoor unit is five steps including PCB setting.
Step 1. Determine direction of pipes.
- The pipes can be connetable in three directions.
- The directions are expressed in below figure.
- When connecting in a downward direction, knock out the knock-out hole of the base pan.
Step 1. Pre-tightening.
- Align the center of the pipes and sufficiently
tighten the flare nut by hand.
Step 2. Tightening.
- Tighten the flare nut with a wrench.
- Tightening torque is as following.
Indoor unit tubing Flare nut Pipings
Torque wrench
Indoor unit tubing
Open-end wrench (fixed)
Connection pipe
Flare nut
Outside diameter Torque
mm kgf·m
6.35 1.8 ~ 2.5
9.52 3.4 ~ 4.2
12.7 5.5 ~ 6.6
15.88 6.6 ~ 8.2
19.05 9.9 ~ 12.1
Forward
Sideways
Backward
Connecting Pipe to Indoor Unit
Connecting pipe to the indoor unit is two steps. Read following directions carefully.
Knock-out
Base pan
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