Sanyo UHX2452 Manual Do Utilizador

1-3

Test Run

YES

Make necessary corrections.

Check the alarm

contents.

Check the alarm contents.

Turn OFF the indoor and

outdoor unit power.

YES

CASE 1

CASE 2

CASE 3B

CASE 3A

YES

Recheck the items to check before the test run.

Have the outdoor sub units been connected?

Are the inter-unit control wires

connected to more than 1 refrigerant

system?

Is it possible to turn ON the power only

for the 1 refrigerant system where the

test run will be performed?

Will automatic address setting be

performed in Heating mode?

Is it OK to start the compressors?

Turn ON the indoor and

outdoor unit power.

Short-circuit the mode change pin

(CN101) on the outdoor main unit PCB.

At the same time, short-circuit the

automatic address pin (CN100) for 1

second or longer, then release it.

Short-circuit the automatic address

pin (CN100) on the outdoor main

unit PCB for 1 second or longer,

then release it.

Short-circuit the automatic address pin (CN100)

on the outdoor main unit PCB for 1 second or

longer, then release it.

Start indoor and outdoor unit

cooling operation.

LED 1 and 2 blink alternately.

Start indoor and outdoor unit

heating operation.

LED 1 and 2 blink alternately.

LED 1 and 2 blink alternately

(about 2 or 3 minutes).

Is it OK to start the compressors?

Turn ON the indoor and

outdoor unit power.

Turn OFF the indoor

and outdoor unit

Turn ON the indoor and

outdoor unit power for that

refrigerant system only.

Are LED 1 and 2 on the

outdoor unit PCB OFF?

Are LED 1 and 2 on the

outdoor unit PCB OFF?

Set the unit address.

Set the No. of outdoor units.

Set the No. of indoor units.

Set the system address.

When multiple outdoor main units exist, disconnect the terminals

extended from the shorted plugs (CN003) at all outdoor main unit

PCBs except for 1.

Alternatively, move the sockets to the OPEN side.

Unit No. setting switch

(S007)

Unit No. setting switch

(S006)

Unit No. setting switch

(S004 and S005)

Unit No. setting switch

(S002 and S003)

(Check the link wiring.)

The unit with the unit

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

Note: It is not necessary to remove

the socket that is used to short-
circuit the terminal plugs from
the outdoor sub unit PCBs.

Refer to "Table of Self-
Diagnostic Functions and
Description of Alarm Displays."

*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.)

Refer to the remote

controller test-run

settings.

Set the wired remote controller for test run.

Does system operate?

Return remote control to normal mode

Check and make corrections according to

"Table of Self-Diagnostic Functions."

End test run.

Make necessary

corrections

1. Test Run

2. Test Run Procedure

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 crankcase heater.

2. After performing the leak inspection, applying vacuum,

and performing refrigerant charge for 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 dupli-

cated 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.

SM830157_W-2WAY_ECO-i.indb 3

2007/06/08 14:23:12