Sanyo TH3642 / CH3642, XH3642 / CH3642, XH4242 / CH4242, XH2442 / CH2442, UH3642 / CH3642 Unit side

4. Service procedures

●Test Run Procedure

Start
Multiple remote	Yes
control?
No

Turn on RCU address SW of sub remote control unit

Recheck the test items before test operation.

Check the indoor and outdoor unit combination (wiring).

Yes	Single type?		Multiple indoor	Yes
	(One indoor unit and one	No
			units for one outdoor
	remote controller for one
			units?
	outdoor unit)
			No	Turn on power supply for indoor units side
				first Then turn on power supply for outdoor
				unit side.

Group control	Yes
for multiple outdoor
units?
	Go next
No	R.C. line
	No
Yes	Finish all
	R.C. line?
Central control	Yes
for multiple outdoor
units?
No	Go next
	R.C. line
	No
Yes	Finish all
	R.C. line?

or

or

Set the outdoor unit R.C. address. Turn on power supply switch.

Press A. ADD (S1) button (See P87).

Execute auto. address operation with the remote controller.

CN4: Open (*)

Set the outdoor unit R.C. address. Turn on power supply switch.

Press A. ADD (S1) button (See P87).

Execute auto. address operation with the remote controller.

4

Display the combination number.

Set the remote controller to test operation.

No	Check according the self-diagnostics function table,
Is operation possible?	see Sec. 12-8, 9, 10, and if there is a location to correct,
	correct it.

Yes Note: Check the indoor side drain water.

Return the remote controller to normal.

NOTE End

1)One of CN006 of all linked outdoor units shold be short.

2)In case of using system controller, zone registration is required after finishing Test run. Regarding the zone registration, please refer to page 74 and 75.

2231_M_I

SM830082

IV - 41