• SW502 : Air Conditioner
Function Settings
(Set this switch based on the functions of the M series connected to this device.)
M series
sw No.
Functions
OFF
ON
Comments
No. 1
Availability of a heating mode
Combined cooler and
Cooling unit only
heater
No. 2
Not in use
Permanently set to ON.
No. 3
Not in use
Permanently set to ON.
No. 4
Not in use
Permanently set to ON.
No. 5
Not in use
Permanently set to OFK
No. 6
Not in use
Permanently set to OFK
No. 7
Not in use
Permanently set to OFK
No. 8
Availability of a fan (Cooling model only)
Has a fan or mode
No fan or mode ON
OFF
P/S series
sw No.
Functions
OFF
ON
No.1
Cooling only type/Heat pump type
Heat pump type
Cooling only type
No.2
Auto mode
No,3
No.4
No.5
Vane
Fan speed
Not available
(setting No. 3
disabled)
Available
(unit)
4 speeds
Available
Available
(setting No. 3
enabled)
Available
(remote controller)
3 speeds (2-speed
model set ON)
Not available
No.6
Swing
Available
Not available
No.7
Not in use
Permanently set to OFF.
No.8
Fan mode
Not available
Available
Set to ON.
Fan speed
2 step model
: An actual
fan speed
is 2 step though
the display
of remote
controller
becomes
4 step
or 3 step.
Comments
Set the mode in accordance with the operation
manual for the indoor unit.
Heat pump type
:Set to ON.
Cooling only type :Set to OFK
Set to OFF.
When operating a 2-speed model with the 3-speed
setting (ON), the MA remote controller display will
indicate 3 tan speeds. The table below shows the
displays and the actual outputs at that time.
Display
Meaning
Indoor unit output
III
Low speed
Low speed
II II
Medium speed
High speed
iiiiii
High speed
High speed
The Vane function or either or indoor unit :
When the function is provided, it is Available (OFF).
When the function is not provided it is Not avail-
able (ON).
The Swing function of either of indoor unit :
When the function is provided, it is Available (OFF).
When the function is not provided, it is Not avail-
able (ON).
• Interface status monitor
You can check the status of the interface by the LED lamp on the interface unit board.
LED lamp no.
Lamp off
Lamp on
Blinking
LED521
DC 12 V is not being supplied from the
DC 12 V is being supplied from the air
air conditioner,
conditioner.
LED522
Device is not communicating
properly
_
Blinking at approx. 1 second intervals: Device is
with the air conditioner,
communicating normally with the air conditioner.
LED523
Device is not communicating
properly
_
Blinkingatapprox.8 second intervals: Device is com-
with the MA remote controller,
municating normally with the MA remote controller.
Use the table above
to check
the device
operations.
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