7-2. Test Run Procedure - Panasonic U-4LE1E5 Installation Instructions Manual

7-2. 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. 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.
<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
Refer to Figs. 7-4, -5 from the shorted plugs (CN-TERMINAL) at all outdoor main unit PCBs
except for 1. Alternatively, move the sockets to the OPEN side.
NO
CASE 3B
Is it OK to start the compressors?
Turn ON the indoor and
outdoor unit power.
*2
Short-circuit the cooling side of the
mode change 3P pin (CN-MODE) on
the outdoor main unit PCB. At the
same time, short-circuit the automatic
address pin (CN-A.ADD) for 1 second
or longer, then pull it out. *1
3 *
Start indoor and outdoor unit
cooling operation. LED 1 and
2 blink alternately.
Are LEDs 1 and 2 on the outdoor
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
settings.
Return remote control to normal mode
AMP Air Conditioning
Recheck the items to check before the test run.
Set the No. of indoor units.
Are the inter-unit control wires
connected to more than 1 refrigerant
system?
Set the system address.
Each system to be a unique number.
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?
YES
Is it OK to start the compressors?
Turn ON the indoor and
outdoor unit power.
*2
Short-circuit the automatic
address pin (CN-A.ADD) on the
outdoor unit PCB for 1 second
or longer, then release it. *1
3 *
Start indoor and outdoor unit
heating operation. LED 1
and 2 blink alternately.
NO
unit PCB OFF?
YES
NO
Does system operate?
YES
End test run.
CASE 1
NO
YES
CASE 2
YES
NO
Make necessary corrections.
Turn OFF the indoor and
CASE 3A
outdoor unit power.
Check the alarm contents.
Make necessary
corrections Refer to "Table of
Self-Diagnostic Functions
and Description of Alarm
Turn OFF the indoor
Displays."
and outdoor unit
Check the alarm
contents.
Check and make corrections according to
"Table of Self-Diagnostic Functions."
*1 Use a flathead screwdriver to short-circuit the pin on the PC board.
*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.
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Turn ON the indoor and
outdoor unit power for that
refrigerant system only.
Short-circuit the automatic address pin
(CN-A.ADD) 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 LEDs 1 and 2 on the
outdoor unit PCB OFF?
YES
Fig. 7-3