Test Run Procedure - Panasonic U-72MF1U9 Technical Data Manual

2. Test Run Procedure

2. Test Run Procedure

Recheck the items to check before the test run.
<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)
inter-unit control wires connected
(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. 5-4
extended from the shorted plugs (CN003) at all outdoor main unit
PCBs except for 1. Alternatively, move the sockets to the OPEN side.
to turn ON the power only for the 1 refrigerant
system where the test run will be
Will automatic address setting
NO be performed in Heating mode?
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 *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 control to normal mode
NO
Have the outdoor sub
units been connected?
YES
*1
Set the unit address.
*1 The unit with the unit No. set to 1 is
the main unit. All other units are sub
units.
Set the No. of outdoor units.
Set the No. of indoor units.
Are the
NO
to more than 1 refrigerant
system?
YES
Set the system address.
Is it possible
performed?
NO
YES
CASE 3A
Is it OK to start the compressors?
Turn ON the indoor and
Make necessary
outdoor unit power.
*2
Short-circuit the automatic
address pin (CN100) on the
outdoor main unit PCB for
1 second or longer,
Turn OFF the indoor
then release it.
and outdoor unit power.
Start indoor and outdoor unit
heating operation.
LED 1 and 2 blink alternately.
NO
YES
NO
Check and make corrections according
to Table of Self-Diagnostic Functions.
YES
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
(4 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
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
Make necessary corrections.
Turn OFF the indoor and
outdoor unit power.
Check the alarm contents.
corrections
Refer to Table of Self-Diagnostic
Functions and Description of Alarm Displays.
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.
5 - 3
Test Run
Turn ON the indoor and outdoor unit power
for that refrigerant system only.
Short-circuit the automatic address
pin (CN100) on the outdoor main 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. 5-3
1
2
3
4
5
6
7
8