Sanyo 85464359981002 Test Run Procedure, Items to Check Before the Test Run, Fig

8-2. Test Run Procedure

Items to Check Before the Test Run

<Outdoor unit control PCB> Unit No. setting switch (S004)

Recheck the items to check before the test run.

Set the No. of indoor units.

1.Turn the remote power switch on at least 5 hours before the test, in order to energize the crank case heater.

2.Turn the outdoor service valves (2 locations) to the full-open positions.

●Use caution when making the settings. If there are duplicated system addresses, or if the settings for the Nos. of the indoor units are not consistent, an alarm will occur and the system will not start.

●These settings are not made on the indoor unit PCB.

Are the inter-unit control wires

(Check the link wiring.) connected to more than 1 refrigerant system?

NO CASE 1

<Outdoor unit control PCB>			YES
Unit No. setting switch		Set the system address.
(S002 and S003)
		When multiple outdoor units exist, disconnect the terminals
Refer to Fig. 8-4	extended from the shorted plugs (CN33) at all outdoor main unit
		PCBs except for 1.
		Alternatively, move the sockets to the OPEN side.
				YES CASE 2
		Is it possible to turn ON the power only
		for the 1 refrigerant system where the
		test run will be performed?

Turn ON the indoor and

NOoutdoor unit power for that refrigerant system only.

NO

CASE 3B

Is it OK to start the compressors?

Turn ON the indoor and outdoor unit power.

*2

Short-circuit the mode change pin (CN50) on the outdoor main unit PCB. At the same time, short-circuit the automatic address pin (CN51) for 1 second or longer, then pull it out.

Will automatic address setting be				Make necessary corrections.			Short-circuit the automatic address pin (CN51)
performed in Heating mode?
							on the outdoor unit PCB for 1 second or longer,
	YES	CASE 3A			Turn OFF the indoor and			then release it.
					outdoor unit power
Is it OK to start the compressors?								LED 1 and 2 blink alternately
				Check the alarm contents.				(about 2 or 3 minutes).
Turn ON the indoor and						NO
outdoor unit power.								Are LEDs 1 and 2 on the
*2			Make necessary					outdoor unit PCB OFF?
Short-circuit the automatic address			corrections		Refer to “Table of
pin (CN51) on the outdoor unit PCB					Self-Diagnostic Functions and
					Description of Alarm Displays.”				YES
for 1 second or longer,			Turn OFF the indoor
then release it.			and outdoor unit

*3	*3
Start indoor and outdoor unit	Start indoor and outdoor unit
cooling operation.	heating operation.
LED 1 and 2 blink alternately.	LED 1 and 2 blink alternately.

Are LEDs 1 and 2 on the	NO
outdoor unit PCB OFF?

YES

Check the alarm

contents.

*2 A minimum of 5 hours must have passed after the power was turned ON to the outdoor unit.

*3 All indoor units operate in all refrigerant systems where the power is ON.

Check that test run preparation is OK.

(Do not allow the short-circuited pins to remain short-circuited.)

Set the wired remote controller for test run.

Refer to the remote		NO
controller test-run
	Does system operate?
settings.

Check and make corrections according to “Table of Self-Diagnostic Functions.”

YES

Return remote control to normal mode

End test run.

Fig. 8-3

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