Fujitsu AirStage AB12, Service Manual

Page: 35 / 199

Expansion valve initialize.
The pulse of the expansion valve is initialized with SW2-3.
3. DIP SWITCH3 SETTING IS FORBIDDEN
EXPANSION VALVE INITIALIZATION SW
Expansion Valve Initialization
Release
SW2-3
ON Operate
OFF
3
Forced oil recovery operation.
Forced oil recovery operation started with SW2-4.
FORCED OIL RECOVERY SW
Forced Oil Recovery
SW2-4
ON
OFF
4
Remarks
Operation
Release
Operate
Remarks
(OFF-ON)+(ON continues for 1 minute
)
SW5-1 and SW5-2 setting are forbidden. 1
5. DIP SWITCH5
2 Base heater validity/invalidity.
The base heater setting is performed with SW5-3.
Base Heater Setting SW
SW5-3
ON Invalidity
OFF
BASE HEATER SETTING SW
Validity
Remarks
6. DIP SWITCH6 SETTING IS FORBIDDEN
System type switch 1,2.
7. DIP SWITCH7
1
ON
ON
OFF
OFF
SW7-1 Model selection SW7-2
ON
OFF
OFF
ON
Cannot Set
Heat Recovery
Heat Pump
Cooling Only
Model change in Heat recovery / Heat pump type / Cooling only type are made with SW7-1,2.
SYSTEM TYPE SWITCH 1/2
8. External input terminal 1/2
When the cooling or heating mode is selected, the priority circuit is set.
EXTERNAL INPUT TERMINAL 1/2
Terminal
External input
terminal 1CN50
External input
terminal 2CN49
Conditions
R.C.
External input
Cool
Heat
Setting
SHORT
With CN49 and CN50.
OPEN
OPEN
SHORT
4. DIP SETTING IS FORBIDDEN
Remarks
Remarks
( Initial setting )
( Initial setting )
( Initial setting )
( Initial setting )
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