Piping and Wiring for Outdoor Unit
Connecting Pipe to Indoor Unit
Connecting pipe to the indoor unit is two steps. Read following directions carefully.
Connecting Pipe to Outdoor Unit
(Product Heating Capacity : 9kW(U4 Chassis),12kW,14kW,16kW)
Connecting pipe to the outdoor unit is five steps including PCB setting.
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.
Step 1. Determine direction of pipes.
• The pipes can be connectable in four directions
• The directions are expressed in below figure.
Step 2. Determine direction of pipes : in
case of downward
Torque wrench
Indoor unit tubing
Open-end wrench (fixed)
Connection pipe
Flare nut
Indoor unit tubing
Flare nut
Pipings
mm
inch
kgf·m
6.35
1/4
1.8 ~ 2.5
9.52
3/8
3.4 ~ 4.2
12.7
1/2
5.5 ~ 6.6
15.88
5/8
6.6 ~ 8.2
19.05
3/4
9.9 ~ 12.1
Outside diameter
Torque
Forward
Sideways
Backward
Forward
Sideways
Backward
Not Available
ENGLISH
Installation Manual
43
Summary of Contents for AHNW096A0
Page 92: ...92 Air to Water Heat Pump ...
Page 93: ......
