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5.3 Installation of outdoor unit
(1) Installation of outdoor unit
(a)
Make sure that sufficient space for installation and service is secured.
(b)
Fix the leg sections of the unit on a firm base which will not play.
Attach cushion pads, etc. between the unit and the mounting fixtures not to transmit vibration to the building.
(c)
Attach a drain elbow, etc. under the drain port of the bottom plate to guide drain water.
(Drain elbow should not be used where days when temperature drops below 0°C continue for several days. Draining may be
disturbed by frozen water.)
(d)
When installing the unit at a higher place or where it could be toppled with strong winds, secure the unit firmly with
foundation bolts, wire, etc.
(2) Connection of indoor and outdoor connecting wiring
(a)
Connect the wiring according to the number of the indoor terminal block. (Mis-wiring may cause the burning damage, and
make sure to connect correctly.)
Notes (1) To prevent the mis-operation by noise, when the connecting wire too long for indoor and outdoor. Please hide the fixed wire in the pipe or use vinyl tape to set.
Do not put wire into the unit.
Notes
(2) Please let the anchorized personal to decide by indoor wiring code whether connect the leakage breaker or not.
5.4 Refrigerant piping
(1) Preparation
Keep the openings of the pipes covered with tapes etc. to prevent dust, sand, etc. from entering them.
Indoor unit side
(Do not
turn)
¡ Remove the flared nuts.
(on both liquid and gas sides)
(2) Connection of refrigerant piping
Indoor unit side
¡ Connect firmly gas and liquid side
pipings by Torque wrench.
Spanner
(for fixing
the piping)
Torque
wrench
¡ Specified torquing value:
Liquid side (ø6.35) : 14.0~18.0N·m (1.4~1.8kgf·m)
Gas side (ø9.52)
Gas side
(ø12.7)
¡ Always use a Torque wrench and back up spanner to tighten
the flare nut.
Terminal block
Interconneting
wire
Outdoor unit side
Remove
¡ Remove the flared nuts.
(on both liquid and gas sides)
: 34.0~42.0N·m (3.4~4.2kgf·m)
: 49.0~61.0N·m (4.9~6.1kgf·m)
1
Brown
2
Blue
3
Black
Yellow/Green
Press
Remove
¡ Install the removed flared nuts to the pipes to be connected,
then flare the pipes.
Outdoor unit side
¡ Connect firmly gas and liquid side
pipings by Torque wrench.
¡ Specified torquing value:
Liquid side (ø6.35) : 14.0~18.0N·m (1.4~1.8kgf·m)
Gas side (ø9.52)
Gas side
(ø12.7)
¡ Use one more spanner to fix the valve.
34
-
-
For power supply, indoor outdoor
Connecting wiring
Indoor/outdoor signal wire (Low voltage)
Earth wiring terminal
Dimension A
Liquid side
(φ6.35):
9.1 dia
Gas side
(φ9.52):
13.2 dia
(φ12.7):
16.6 dia
: 34.0~42.0N·m (3.4~4.2kgf·m)
: 49.0~61.0N·m (4.9~6.1kgf·m)
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