Service Functions - Mitsubishi Electric MS-A18WV Service Manual

9

SERVICE FUNCTIONS

MS-A18WV -
E1
MS-A24WV -
E1
MS-A30WV -
E1
9-1. TIMER SHORT MODE
For service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.
The time will be shortened as follows.
Set time : 1 minute
Set time : 3 minute
9-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION
A maximum of 4 indoor units with wireless remote controllers can be used in a room.
In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be
modified according to the number of the indoor unit.
How to modify the remote controller P.C. board
Remove batteries before modification.
The board has a print as shown below :
Remote controller model : KP0B
Remote controller model : KG1D
Remote controller model : KG1D
The P.C. board has the print "J1" and "J2". Solder "J1" and "J2" according to the number of indoor unit as shown in Table 1.
After modification, press the RESET button.
1-second
3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is
shortened by short circuit of JPG and JPS.)
J1
J2
J1
J2
17
J2
J1
NOTE : 1. For remodelling, take out the
batteries and press the
OPERATE/STOP(ON/OFF)
button twice or 3 times at first.
After finish remodelling, put
back the batteries then press
the RESET button.
2. Remote controller model KG1D
and KP0B are the same in
terms of specification.