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1. All cooling test operation function
This function is provided to change collectively the mode of all the indoor units connected to the same
system for cooling test operation mode, using switches on the interface P.C. board of the header unit.
Operation procedure
[A]
[C ]
[B]
[ –C]
Power ON
Be sure to turn on power at the indoor side before power-ON of outdoor unit.
Set SW01 on the interface P.C. board of the header unit to [2],
Sw02 to [5], and SW03 to [1] respectively. ([C ] is displayed on the 7-segment display [A].)
Push SW04 on the interface P.C. board of the header unit for 2 seconds or more.
[TEST] is displayed on the remote controller of the indoor unit to be operated.
Check that “ – C ” is displayed on the 7-segment display
[B] on the interface P.C. board of the outdoor unit.
Return SW01, SW02, SW03 on the interface P.C. board of the outdoor unit to [1], [1], [1]
respectively or push the push-switch SW05 for 2 seconds or more.
Start
Operation check
Stop/End
Interface P.C. board
7-segment display [A] 7-segment display [B]
SW04 SW05
SW01 SW02 SW03
Rotary switch
2. All heating test operation function
This function is provided to change collectively the mode of all the indoor units connected to the same
system for heating test operation mode, using switches on the interface P.C. board of the outdoor unit.
Operation procedure
NOTE) The test operation returns to normal operation after 60 minutes.
Power ON
Be sure to turn on power at the indoor side before power-ON of outdoor unit.
Set SW01 on the interface P.C. board of the header unit to [2],
Sw02 to [6], and SW03 to [1] respectively. ([H ] is displayed on the 7-segment display [A].)
[A]
[ H ]
[B]
[ –H]
Push SW04 on the interface P.C. board of the header unit for 2 seconds or more.
[TEST] is displayed on the remote controller of the indoor unit to be operated.
Check that “ – H ” is displayed on the 7-segment display
[B] on the interface P.C. board of the outdoor unit.
Return SW01, SW02, SW03 on the interface P.C. board of the outdoor unit to [1], [1], [1]
respectively or push the push-switch SW05 for 2 seconds or more.
Start
Operation check
Stop/End