Panasonic U-8MF3R7 Installation Instructions Manual page 50

7-2. Test Run Procedure
Have outdoor sub units been connected?
<All outdoor unit control P.C.B.>
Unit number setting switch
(SW5)
<Outdoor main unit control P.C.B.>
Number of outdoor units setting
switch (SW6)
<Outdoor main unit control P.C.B.>
Number of indoor units setting
switch (SW3 and SW4)
(Check link wiring.)
connected to a multiple refrigerant system?
<Outdoor main unit control P.C.B.>
System address setting switch
(SW1 and SW2)
If the terminating resistance pin on outdoor main unit
P.C.B. is made link wiring more than 2 refrigerant
systems, set to OPEN side excepting the nearest
outdoor unit and the farthest outdoor unit from the
CASE 3.b
NO
Is it OK to start the compressor?
Turn ON power to indoor and outdoor units.
*2
While COOL side of MODE pin (CN40) on
outdoor main unit P.C.B. short circuited, short
circuit the A.ADD pin (CN30) on outdoor main
unit P.C.B. for over 1 second long.
*3
Cooling of indoor and outdoor units started.
LEDs 1 and 2 blink alternately.
Test run preparation is completed. (Do not allow short-circuited pin to remain short-circuited.)
See section "7-5.Setting Test
Run Remote Controller".
Recheck before the test run.
YES
*1 The unit set to 1
*1
Set outdoor unit address.
Set No. of outdoor units.
Set No. of indoor units.
Are indoor and outdoor control wires
YES
System address setting
central controller.
Is it possible to turn ON power only
for 1 refrigerant system where the
test run will be performed?
NO
Is auto address setting
performed in heating mode?
Is it OK to start the compressor?
Turn ON power to indoor and outdoor units.
*2
Short circuit the A.ADD pin (CN30) on outdoor
main unit P.C. board for over 1 second long and
*3
Heating of indoor and outdoor units started.
LEDs 1 and 2 blink alternately.
Are LEDs 1 and 2 on
outdoor unit P.C.B. OFF?
YES
Set the remote controller to a test run.
Does system operate?
YES
Return remote controller
to normal mode.
End test run.
Notes:
1. Use caution when making the settings.
If there are duplicated system addresses, or if
the settings for the number of indoor units are not
NO
consistent, an alarm will occur and the system will not
start.
2. These settings are not made on the indoor unit P.C.
becomes the outdoor board.
main unit.
NO
CASE 1
Note:
It is not necessary to control the terminating
resistance pin excepting the outdoor main
unit.
YES
CASE 2
YES
CASE 3.a
then open circuit.
NO
Follow the section "7-7. Self-Diagnosis Function Table and Contents of Alarm
NO
*2 At least 5 hours must have passed after the power ON to the outdoor unit.
*3 All indoor units operate in all refrigerant systems where the power is ON.
*4 See section "7-7. Self-Diagnosis Function Table and Contents of Alarm
Display".
50
Make necessary Turn ON power to indoor and outdoor
corrections. units only for that refrigerant system.
Turn OFF power
Short circuit the A.ADD pin (CN30) on
outdoor main unit P.C.B. for over 1
to indoor and
second long and then open circuit.
outdoor units.
*4
Check alarm LEDs 1 and 2 blink alternately.
contents.
NO
Make necessary
corrections.
Turn OFF power to
indoor and outdoor units.
*4
Check alarm contents.
Display" and resolve the problem.
(Approx. 2 - 3 minutes)
Are LEDs 1 and 2 on
outdoor unit P.C.B. OFF?
YES