Mitsubishi Electric Mr.Slim PLA-A12BA6 Service Manual page 34

(2) Rotation and back up operation
PAR-31MAA
Main Main menu 3/3
Maintenance
Initial setting
Service
Main display:
Cursor Page
F1 F2 F3 F4
Service menu
Enter maintenance password
9999
Select:
Cursor
Service menu 1/2
Test run
Input maintenance info.
Function setting
Check
Self check
Main menu:
Cursor
Check menu 1/1
Error history
Refrigerant volume check
Refrigerant leak check
Smooth maintenance
Request code
Service menu:
Cursor
Request code
Ref.address 0
Request code 004
Request:
Cursor
10-2. BACK-UP HEATING FUNCTION (CN24)
10-2-1. Operation
Outline of functions
The back-up heater signal is sent out according to the tempera-
ture difference between indoor room temperature and set tem-
perature. This function is available only in heating operation.
10-2-2. How to connect
When connecting to the connector CN24 of the indoor unit, use
PAC-SE56RA-E (optional parts).
OCH581
Press the button.
1
Select "Service" with the [Cursor] buttons (
2
F4
and ), and press the
Enter the current maintenance password (4 numerical digits).
3
• Move cursor to the digit you wat to change with the
• Set each number (0 through 9) with the
(Note: The initial maintenance password is "9999".)
Then, press the button.
4
F1
Select "Check" with the
5
Select "Request code" with the
6
Set the Refrigerant address and Request code.
7
• Select the item to be changed with the
• Select the required setting with the
F3 F4
Press the or button to set the Refrigerant address "0".
8
F3 F4
Press the or button to set the desired request code No.
9
• Rotation & Back up operation: Enter one request code from 311–318.
• 2nd stage cut-in operation: Enter one request code from 321–324.
Press the button. Data will be collected and displayed.
0
F3 F4
Press the or button to set the Refrigerant address "1".
1
Set above – .
9 0
To return to the Main menu, press the
2
34
F1
F2
and ) or the [Page] buttons (
button.
F1
or
F4
F3 or button.
F2
or button, and press the
F1
or F2 button, and press the
F1 F2
or button.
F3 F4
or button.
button.
Temperature difference
(Z=Set temp. - Room temp.)
1 Z [ 0˚F [˚C]
0 < Z < 4.5˚F [2.5˚C]
2
3 4.5˚F [2.5˚C] [ Z
Z 0
4.5˚F [2.5˚C]
F3
F2
button.
button.
button.
Back-up heater
signal output
OFF
Keeping condition
ON
ON
OFF