Sanyo CH4272R H/P User Manual

Indicate (mark) the number after automatic address setting is completed.

(1) So that the combination of each indoor unit can be easily checked when multiple units are installed, ensure that the

indoor and outdoor unit numbers correspond to the system address number on the outdoor unit control PCB, and

use a magic marker or similar means which cannot be easily erased to indicate the numbers in an easily visible

location on the indoor units (near the indoor unit nameplates).

Example: (Outdoor) 1 - (Indoor) 1-1...(Outdoor) 2 - (Indoor) 2-2...

(2) These numbers will be needed for maintenance. Be sure to indicate them.

* Use the remote controller to check the addresses of the indoor units. Press and hold the 

button and 

button for 4 seconds or longer (simple settings mode). Then press the 

button and select the indoor

address. (Each time the button is pressed, the address changes as follows: 1-1, 2-1, ....) The indoor unit fan

operates only at the selected indoor unit. Confirm that correct fan is operating, and indicate address on the

indoor unit.

Press the 

button again to return to the normal remote controller mode. 

For details, refer to the separate handbook.

11-8-6. Main-sub remote controller control  
Control using 2 remote controller switches

Main-sub remote controller control refers to the use of 2 remote controllers to control 1 indoor unit. 
(A maximum of 2 remote controllers can be connected.)

Remote controller wiring

Optional

Optional

Remote controller 
switch (sub)

Remote controller 
switch (main)

Indoor unit

Outdoor unit

Ground

G

G

Ground

for remote 
controller wiring

Terminal plate 

(1) Set 1 of the 2 connected remote controllers as the

main remote controller.

(2) On the other remote controller (sub remote 

controller), change the remote controller address 

connector on the reverse side of the remote controller

switch PCB from the Main position to the Sub 

position. 

The remote controller will now function as the sub

remote controller.

Remote controller

Remote controller 
address connector

RCU. ADR

Main

Sub

RCU check

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