Test Run Procedure - Panasonic U-36LE1U6 Service Manual

1. Test Run

1-2. Test Run Procedure

Recheck the items to check before the test run.
<Outdoor unit control PCB>
Unit No. setting switch
(S004)
(Check the link wiring.)
wires connected to more than 1
<Outdoor unit control PCB>
Unit No. setting switch
(S002 and S003)
When multiple outdoor units exist, disconnect the
terminals extended from the shorted plugs (CN33) at all
Alternatively, move the sockets to the OPEN side.
ON the power only for the 1 refrigerant
system where the test run will be
be performed in Heating mode?
NO
CASE 3
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.
Are LED 1 and 2 on the
outdoor unit PCB OFF?
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 controller Does system operate?
test-run settings.
Return remote control to normal mode
End test run.
Set the No. of indoor units.
Are the inter-unit control
refrigerant system?
YES
Set the system address .
outdoor unit PCBs except for 1.
Is it possible to turn
performed?
NO
Will automatic address setting
YES
CASE 2
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,
Turn OFF the indoor and
then release it.
outdoor unit power.
*3
Start indoor and outdoor
unit heating operation. LED
Check the alarm contents.
1 and 2 blink alternately.
NO
YES
NO
Check and make corrections according to
"Table of Self Diagnostic Functions."
YES
NO
CASE 1
YES
Make necessary
corrections.
Turn OFF the
indoor and outdoor
unit power.
Check the
alarm contents.
Make necessary
corrections
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.
1 - 3
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. 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 number 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.
Turn ON the indoor and outdoor unit
power for that refrigerant system only.
Short-circuit the automatic address pin
(CN51)on the outdoor unit PCB for 1
second or longer, then release it.
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
NO
Are LED 1 and 2 on the
outdoor unit PCB OFF?
YES
Test Run
1