Test Run Procedure - Sanyo Mini ECO-i SPW-ASR74GXH56(A/B) Installation Instructions Manual

05-194 5/27/05 5:06 PM

7-2. Test Run Procedure

<Outdoor unit control PCB>
Unit No. setting switch
(S004)
(Check the link wiring.)
<Outdoor unit control PCB>
Unit No. setting switch
(S002 and S003)
Refer to Fig. 10-4
NO
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.
*3
Start indoor and outdoor unit
cooling operation.
LED 1 and 2 blink alternately.
Set the wired remote controller for test run.
Refer to the remote
controller test-run
settings.
Page 38
Recheck the items to check before the test run.
Have the outdoor sub units been connected?
YES
Set the unit address.
Set the No. of outdoor units.
Set the No. of indoor units.
Are the inter-unit control wires
connected to more than 1 refrigerant
system?
YES
Set the system address.
When multiple outdoor units exist, disconnect the terminals
extended from the shorted plugs (CN33) at all outdoor main unit
PCBs except for 1.
Alternatively, move the sockets to the OPEN side.
Is it possible to turn ON the power only
for the 1 refrigerant system where the
test run will be performed?
NO
Will automatic address setting be
performed in Heating mode?
YES
CASE 3B CASE 3A
Is it OK to start the compressors?
Turn ON the indoor and
outdoor unit power.
*2
Short-circuit the automatic address
pin (CN51) on the outdoor unit PCB
for 1 second or longer,
then release it.
*3
Start indoor and outdoor unit
heating operation.
LED 1 and 2 blink alternately.
NO
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
YES
Check that test run preparation is OK.
(Do not allow the short-circuited pins to remain short-circuited.)
NO
Does system operate?
YES
Return remote control to normal mode
End test run.
Items to Check Before the Test Run
1. Turn the remote power switch on at
NO
2. Turn the outdoor service valves (2
*1
*1
The unit with the unit
No. set to 1 is the
Use caution when making the set-
main unit. All other
units are sub units. tings. If there are duplicated system
addresses, or if the settings for the
Nos. of the indoor units are not con-
sistent, an alarm will occur and the
system will not start.
These settings are not made on the
indoor unit PCB.
CASE 1
NO
CASE 2
YES
Make necessary corrections.
Short-circuit the automatic address pin (CN51)
on the outdoor unit PCB for 1 second or longer,
Turn OFF the indoor and
Check the alarm contents.
NO
Make necessary
corrections Refer to "Table of
Self-Diagnostic Functions and
Description of Alarm Displays."
Turn OFF the indoor
and outdoor unit
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 and make corrections according to
"Table of Self-Diagnostic Functions."
Fig. 7-3
38
least 5 hours before the test, in order
to energize the crank case heater.
locations) to the full-open positions.
Turn ON the indoor and
outdoor unit power for that
refrigerant system only.
then release it.
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
YES