Johnson Controls YVAHP072B31S, Service Manual

Page: 427 / 1796

Service Manual
1-411
INSTALLATION
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controller. Therefore, pay particular attention to the installation position of the IR receiver kit.
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parallel. It may cause a malfunction of the IR receiver kit.
3
This IR receiver kit can be attached to any of four corners: 1 ,
2 , 3 or 4 ).
Determine the attachment location according to the purchaser’s
request.
NOTE:
Setting the DIP switch for the IR receiver kit is possible at more
than one function. If the optional function selection is required,
perform work according to Section 3, “Optional Functions”,
before the IR receiver kit is attached to the decorative panel.
1
Perform the installation work for the IR receiver kit while the optional decorative panel is being attached to
the indoor unit.
2
When the IR receiver kit is attached after the decorative panel is attached to the indoor unit, turn OFF the
power source of the indoor unit, and remove the decorative panel. Removing the decorative panel should
be performed according to the installation manual for the decorative panel or the service manual.
4
Connect the accessory connecting cable to the terminal block.
Open the electrical box cover of the indoor unit. Attach the
connecting cable to terminals A and B in the electrical box.
(There is no polarity with terminals A and B.)
6 Attach the decorative panel.
Refer to the installation manual for the decorative panel.
5
After attaching the connecting cable to each
terminal, take it out to inside the false ceiling or
outside of the unit.
Connect it to the IR receiver kit.
Refer to the “Installation and Maintenance Manual”
of the indoor unit for indoor unit wiring instruction.
When running the connecting cable, run it to the
installation position of the IR receiver kit through
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running the connecting cable, take the distance (from
4 inches to 8 inches (from 101mm to 203mm) from
the indoor unit undersurface to the connecting cable
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After running the connecting cable, clamp the extra
length of the connecting cable using the plastic band
and store it inside the ceiling.
Decorative Panel
1
2
3 4
MP/N
R/L1
S/L2
2
1
B
A
B
A
Electrical Box
Terminal Block for
Controller
Mark Band “B”
Mark Band “A”
Connecting
Cable
Connecting Cable
Fixing Plate
Relay Connector
Indoor Unit
Wiring Connection
4~8inch
(101~203mm)