Engineering Manual

1. Preparation for installing SIGNAL RECEIVER
Note:
● Discard only the removed corner panel.
● Reuse the screw of the removed corner panel to install the signal receiver.
● When installing the signal receiver during grille installation,
complete the wiring work of grille before proceeding to the
following procedure.
1. Open the intake grille and remove the corner panel. The corner panel is in opposite
to where refrigerant pipes are (where local wires are drawn into).
2. Loosen the 2 screws on the control box cover, and remove the control box
cover by sliding; however, in this installation, the cover can hang temporarily.
3. Specify the target unit for wireless remote controller operation.
Follow the procedure below to set the pair number on the indoor controller board
and the wireless remote controller.
■ Setting pair number
● The pair number setting is to specify the unit which is to be operated by wireless remote controller.
When specifying the unit is not required, this setting is not necessary.
The pair number is set to “0” on indoor unit (signal receiver) side and wireless remote controller side
at an initial setting.
● When specifying the unit is required, match the pair number on the indoor unit (signal receiver) side
and on the wireless remote controller side as shown in the table below.
Make sure to turn off the main power before work.
Pair number of wireless
remote controller
Pair number of indoor unit
No need to cut.
Cut only J41.
Cut only J42.
Cut J41 and J42.
SW 22-3
ON
OFF
ON
OFF
SW 22-4
ON
ON
OFF
OFF
0
1
2
3 to 9
• When the unit is in combination with PLA-EA
Cut jumper wire J41, J42, or both on the indoor
controller board.
• When the unit is in combination with PLFY-EM
Set SW22.
Refrigerant pipe
Control box cover
Main unit
Drain pipe
Indoor controller board
Grille
Intake grille
Corner panel
Screw
How to Use / How to Install
1 Preparation for installing SIGNAL RECEIVER
Make sure to turn off the main power before work.
2 Installing SIGNAL RECEIVER
2. Installing SIGNAL RECEIVER
1. Pull out the lead wire of signal receiver from the square hole located in the corner of grille, where the removed corner panel
was in the preparation procedure.
2. Pass the lead wire through the 2 hooking portions and inside the control box, and connect it to CN90 on the indoor controller board as
shown below.
Adjust the lead wire length to allow the corner panel to be removed again, and fix it with the cable band.
3. Install the signal receiver by sliding it towards the arrow A, and fix in the corner with the screw.
(Reuse the screw which was used to fix the removed corner panel.)
4. After completing the installation, attach the control box cover to the unit as it was.
Screw
Signal receiver
Square hole
Hooking portions
lead wire
Clamp
Cable band
CN90 on indoor controller board
● Installation procedure for the standard location
Signal Receiver PAR-SR3LA-E
229