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110
8-7-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit
This function is provided to forcibly open/close each solenoid valve mounted in the outdoor unit by use of the
switches provided on the outdoor unit interface P.C. board. This function confirms the operation of each solenoid
valve.
[Operation]
1. On the interface P.C. board set SW01 to [2], SW02 to [1] and SW03 to [3].
2. Confirm [H, ] is displayed on the 7-segment display [B]. Push switch SW04 for 2 seconds or more.
3. Confirm [2] is displayed on the 7-segment display - this indicates that solenoid SV2 has been switched on.
4. Each solenoid can be operated by selecting the appropriate SW02 position as shown in the table below.
(ON/OFF output pattern of each solenoid valve is as below.)
NOTE 1) Be aware that there is a 5 second delay in the operation of the selected solenoid valve after SW02
has been set.
NOTE 2) The mark [
¡
] in the table indicates the selected solenoid valve is forced on.
NOTE 3) The mark [—] in the table indicates the selected solenoid mode will depend on the specifications
of the air conditioner.
NOTE 4) The mark [
×
] in the table indicates the selected solenoid valve has been turned off.
NOTE 5) The case heater relay output operates both compressor and accumulator heaters.
[Clear]
Return settings on SW01, SW02, and SW03 to (1/1/1) on the Interface P.C. board.
NOTE) Ensure this function is cleared to return the air conditioner to normal operation.
SW02
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
7-segment display
[B]
[
...
2
...
]
[
...
5
...
]
[
...
6
—
]
[
...
1 1 ]
[
...
1 2 ]
[
...
4 1 ]
[
...
4 2 ]
[
...
4
—
]
[
...
3 A ]
[
...
3 b ]
[
...
3 C ]
[
...
3 d ]
[
...
3 E ]
[
...
3
—
]
[
...
...
...
]
[ A
L
L ]
Operation pattern of solenoid valve
SV2 SV5 SV6 SV11 SV12 SV41 SV42 SV3A SV3B SV3C SV3D SV3E
¡
——————————
¡
—
¡
—————————
¡
——
¡
————————
¡
———
¡
———————
¡
————
¡
——————
¡
—————
¡
—————
¡
——————
¡
————
¡
—————
¡¡
————
¡
———————
¡
———
¡
————————
¡
——
¡
—————————
¡
—
¡
——————————
¡¡
———————————×
———————
¡¡¡
—
¡
———————————
¡
¡¡¡¡¡¡¡¡¡¡¡¡
Case
heater
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡
¡