Service Functions - Mitsubishi Electric MS-30SV-A1 Service Manual

(2) LEV time chart
Opening
Power ON
completely
Remote
controller
ON
Opening at starting
Positioning
NOTE : Opening increases and decreases to be in the target discharge temperature during operation.
8-10. Function of soft start relay
Soft start relay will chop some starting current.
Starting current is reduced as shown in the following figures.
(A)
9

SERVICE FUNCTIONS

MS-30SV -
A1
9-1. TIMER SHORT MODE
For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board.
The time will be shortened as follows. (Refer to page 37.)
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.
Thermostat
Operation OFF
Standard opening
Standard opening Thermostat
ON
Opening in stop
WITHOUT SOFT START RELAY
WITH SOFT START RELAY
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.)
Opening
Remote
completely
controller
Operation
OFF
Opening at starting
Opening in stop
(Sec.)
24
Remote
controller
ON
Operation
Standard opening
Opening at starting
Positioning
Time