Test Run Procedure; Items To Check Before The Test Run - Panasonic U-36LE1U6 Installation Instructions Manual

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)
When multiple outdoor units exist, disconnect the terminals
extended from the shorted plugs (CN33) at all outdoor main unit
Refer to Fig. 7-4
NO
CASE 3B
Is it OK to start the compressors?
T urn ON the indoor and
outdoor unit powe r .
*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 longe r , then pull it out .
*3
Start indoor and outdoor unit
cooling operation.
LED 1 and 2 blink alternatel y .
Are LEDs 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 test-run
Does system operate?
settings.
Return Remote Controller to normal mode
End test run.
Recheck the items to check before the test run.
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.
PCBs except for 1.
Alternativel y , move the sockets to the OPEN side .
YES
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 3A
Is it OK to start the compressors?
T urn ON the indoor and
outdoor unit powe r .
*2 Make necessary
corrections
Short-circuit the automatic address
pin (CN51) on the outdoor unit PCB
for 1 second or longe r ,
T urn OFF the indoor
then release it.
and outdoor unit
*3
Start indoor and outdoor unit
Check the alarm
heating operation.
contents.
LED 1 and 2 blink alternatel y .
*2 A minimum of 5 hours must have passed after the
*3 All indoor units operate in all refrigerant systems
NO
YES
NO
Check and make corrections according to
" T able of Self-Diagnostic Functions. "
YES
Fig. 7-3
34

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 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.
CASE 1
CASE 2
T urn ON the indoor and
outdoor unit power for that
refrigerant system onl y .
Make necessary corrections.
Short-circuit the automatic address pin (CN51)
on the outdoor unit PCB for 1 second or longe r ,
then release it.
Turn OFF the indoor and
outdoor unit power
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
Check the alarm contents.
NO
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
Refer to " T able of
Self-Diagnostic Functions and
Description of Alarm Displays."
power was turned ON to the outdoor unit.
where the power is ON.
YES