Test Run Procedure - Panasonic U-72MF1U9 Installation Instructions Manual

7-2. Test Run Procedure

<Outdoor unit control PCB>
Unit No. setting switch
(S007)
<Outdoor unit control PCB>
Unit No. setting switch
(S006)
<Outdoor unit control PCB>
Unit No. setting switch
(S004 and S005)
(Check the link wiring.)
<Outdoor unit control PCB>
Unit No. setting switch
(S002 and S003)
When multiple outdoor main units exist, disconnect the terminals
Refer to Fig. 7-4
extended from the shorted plugs (CN003) 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 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.
*3
Start indoor and outdoor unit
cooling operation.
LED 1 and 2 blink alternately.
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.
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.
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?
Turn ON the indoor and
outdoor unit power.
Make necessary
*2
corrections
Short-circuit the automatic
address pin (CN100) on the
outdoor main unit PCB for
Turn OFF the indoor
1 second or longer, then
and outdoor unit
release it.
*3
Start indoor and outdoor unit
Check the alarm
heating operation.
contents.
LED 1 and 2 blink alternately.
NO
YES
NO
Check and make corrections according to
"Table of Self-Diagnostic Functions."
YES
Fig. 7-3
40
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.
NO
2. Turn the outdoor service valves (4 locations) to
the full-open positions.
●
Use caution when making the settings. If
there are duplicated system addresses, or if
*1
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.
*1 The unit with the unit No. set to 1 is the main unit.
All other units are sub units.
CASE 1
NO
Note:
It is not necessary to remove the
socket that is used to short-circuit
the terminal plugs from the outdoor
sub unit PCBs.
CASE 2
YES
Short-circuit the automatic address
Make necessary corrections.
pin (CN100) on the outdoor main
unit PCB for 1 second or longer, 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
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.
Turn ON the indoor and
outdoor unit power for that
refrigerant system only.
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
YES