Test Run (Check Operations); Interface Status Monitor - Mitsubishi Electric MAC-397IF-E Manuel D'installation

■ 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
No. 1 Availability of a heating mode
No. 2 Not in use
No. 3 Not in use
No. 4 Not in use
No. 5 Not in use
No. 6 Not in use
No. 7 Not in use
No. 8 Availability of a fan (Cooling model only)
P/S series
SW No. Functions
No.1 Cooling only type/Heat pump type
No.2 Auto mode
No.3
No.4 Fan speed
No.5 Vane
No.6 Swing
No.7 Not in use
No.8 Fan mode
* Fan speed 2 step model : An actual fan speed is 2 step though the display of remote controller becomes 4 step or 3 step.

6. Test Run (Check Operations)

■ Interface status monitor

You can check the status of the interface by the LED lamp on the interface unit board.
LED lamp no.
DC 12 V is not being supplied from the
LED521
air conditioner.
Device is not communicating properly
LED522
with the air conditioner.
Device is not communicating properly
LED523
with the MA remote controller.
* Use the table above to check the device operations.
12
OFF
Combined cooler and
heater
–
–
–
–
–
–
Has a fan or mode
OFF
OFF
Heat pump type
Not available
(setting No. 3
disabled)
Available
(unit)
4 speeds
Available
Available
–
Not available
Lamp off
DC 12 V is being supplied from the air
conditioner.
ON
Cooling unit only
– Permanently set to ON.
– Permanently set to ON.
– Permanently set to ON.
– Permanently set to OFF.
– Permanently set to OFF.
– Permanently set to OFF.
No fan or mode ON
ON
Cooling only type Set the mode in accordance with the operation
manual for the indoor unit.
Available Heat pump type : Set to ON.
(setting No. 3 Cooling only type : Set to OFF.
enabled)
Available Set to OFF.
(remote controller)
3 speeds (2-speed When operating a 2-speed model with the 3-speed
model set ON) setting (ON), the MA remote controller display will
indicate 3 fan speeds. The table below shows the
displays and the actual outputs at that time.
Display
Not available The Vane 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).
Not available 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).
– Permanently set to OFF.
Available Set to ON.
Lamp on
Blinking at approx. 1 second intervals: Device is
–
communicating normally with the air conditioner.
Blinking at approx. 8 second intervals: Device is com-
–
municating normally with the MA remote controller.
Comments
Comments
Meaning Indoor unit output
Low speed Low speed
Medium speed High speed
High speed High speed
Blinking
–