43
*
Recheck before the test run.
System address setting
Set the remote controller to a test run.
Return remote controller
to normal mode.
Follow the section “7-7. Self-Diagnosis Function Table and
Contents of Alarm Display” and resolve the problem.
Test run preparation is completed.
(Do not allow short-circuited pin to remain short-circuited.)
Make necessary
corrections.
Make necessary
corrections.
Check alarm
contents.
Check alarm
contents.
Turn OFF power
to indoor and
outdoor units.
Turn OFF power
to indoor and
outdoor units.
Short circuit the A.ADD pin on outdoor
main unit P.C. board for over 1 second
long and then open circuit.
Short circuit the A.ADD pin on outdoor
main unit P.C. board for over 1 second
long and then open circuit.
Turn ON power to indoor and outdoor
units only for that refrigerant system.
LEDs 1 and 2 blink alternately.
(Approx. 2 - 3 minutes)
Disconnect link wires for
multiple refrigerant system.
LEDs 1 and 2 blink alternately.
(Approx. 2 - 3 minutes)
Set the number of indoor units.
CASE 1
CASE 2
Are LEDs 1 and 2 on outdoor
unit P.C. board OFF?
Connect link wires to original place.
Are LEDs 1 and 2 on outdoor
unit P.C. board OFF?
Does system operate?
If the terminating resistance pin on outdoor main unit P.C.
board 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 central controller.
Are indoor and outdoor control wires
connected to a multiple refrigerant system?
Is it possible to turn ON power only
for 1 refrigerant system where the
test run will be performed?
NO
YES
YES
YES
End test run.
NO
NO
YES
NO
*
<Outdoor main unit control P.C. board>
Number of indoor units
setting switch
(SW3 and SW4)
<Outdoor main unit control P.C. board>
System address setting switch
(SW1 and SW2)
See the section “7-5.
Setting Test Run Remote
Controller”.
YES
NO
(Check link wiring.)
*
See the section “7-7. Self-Diagnosis Function Table and
Contents of Alarm Display”.
Note:
These settings are not made on the indoor unit P.C. board.
7-2. Test Run Procedure
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