Johnson Controls YVAHP0721CW Series, Service Manual

Page: 45 / 416

SM-16007
1-31
INSTALLATION
Model Type Tightening Torque
72 and 96 24.3 - 31.0 ft·lbs (33 - 42 N·m)
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refrigerant leakage may occur from the spindle part. (To prevent
leakage, place two wrenches at the positions as shown at the right
when removing and connecting piping.
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6.2.2 Piping Connection Method
Perform the piping connection work for each outdoor unit.
NOTE:
Ensure that the refrigerant pipe is connected to the same refrigerant system.
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force exerted on the valve.
(2) Follow the installation procedures in Section 6.2.1.
(3) Connect the piping in accordance with Figures 6.1 and 6.2 on the following page.
(4) Seal the gap between the bottom base or front piping cover and pipes with the insulation.
(1) Piping can be installed in three directions (front, rear, or bottom
side) from the bottom base.
For vibration protection, properly secure piping connections and
check that no excessive force is applied to the stop valve.
Do not put
wrenches here.
Position both
wrenches here.
Flare Nut
Front Side
Bottom Side
Rear Side
Bottom Base
For Piping from Bottom Base
Seal these gaps
with insulation.
Piping Cover
(attached to unit)
Liquid Pipe
Gas Pipe
For Piping from Front Piping Cover
Seal these gaps with insulation (field-supplied).
Liquid Pipe Gas Pipe Piping Cover