Sanyo 85464359982001 Test Run Procedure, Items to Check Before the Test Run

07-007 W-2WAY_II_NA 1/23/07 6:09 PM Page 71

8-2. Test Run Procedure

Recheck the items to check before the test run.

Items to Check Before the Test Run

1.	Turn the remote power switch on at least 5 hours
	before the test, in order to energize the crank
	case heater.
2.	After performing the leak inspection, applying
	vacuum, and performing refrigerant charge for

<Outdoor unit control PCB> Unit No. setting switch (S007)

<Outdoor unit control PCB> Unit No. setting switch (S006)

<Outdoor unit control PCB> Unit No. setting switch (S004 and S005)

(Check the link wiring.)

<Outdoor unit control PCB> Unit No. setting switch (S002 and S003)

NO

Have the outdoor sub units been connected?

YES

Set the unit address.		*1
Set the No. of outdoor units.
Set the No. of indoor units.
		NO
Are the inter-unit control wires
connected to more than 1 refrigerant
system?
	YES
Set the system address.

*1 The unit with the unit No. set to 1 is the main unit. All other units are sub units.

CASE 1

	the tubing which is connected on-site, fully open
	the outdoor unit service valve. However if only
	one outdoor unit is installed, a balance tube is
	not used. Therefore, leave the valve fully closed.
3.	When replacing the control PCB, be sure that
	the settings on the new PCB match those on the
	old PCB.
4.	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.
5.	These settings are not made on the indoor unit
	PCB.

When multiple outdoor main units exist, disconnect the terminals

Refer to Fig. 8-4extended from the shorted plugs (CN003) at all outdoor main unit PCBs except for 1.

Alternatively, move the sockets to the OPEN side.

Note: It is not necessary to remove the socket that is used to short-circuit the terminal plugs from the outdoor sub unit PCBs.

Is it possible to turn ON the power only

YES CASE 2

for the 1 refrigerant system where the

test run will be performed?

Turn ON the indoor and

NO

outdoor unit power for that

refrigerant system only.

Will automatic address setting be

Make necessary corrections.

Short-circuit the automatic address pin (CN100)

NO

performed in Heating mode?

on the outdoor main unit PCB for 1 second or

longer, then release it.

CASE 3B

YES

CASE 3A

Turn OFF the indoor and

outdoor unit power.

Is it OK to start the compressors?

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

Turn ON the indoor and

NO

outdoor unit power.

outdoor unit power.

Are LEDs 1 and 2 on the

*2

*2

Make necessary

outdoor unit PCB OFF?

Short-circuit the mode change pin

Short-circuit the automatic address

corrections

Refer to “Table of

(CN101) on the outdoor main unit PCB.

pin (CN100) on the outdoor main

Self-Diagnostic Functions and

Description of Alarm Displays.”

YES

At the same time, short-circuit the

unit PCB for 1 second or longer,

Turn OFF the indoor and

automatic address pin (CN100) for 1

then release it.

outdoor unit power.

second or longer, then release it.

*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.
			NO
	Are LEDs 1 and 2 on the
	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	Fig. 8-3
End test run.

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