Operation Control Function By Indoor Control - Mitsubishi SCM40ZS-S Technical Manual

7.3.2 Operation control function by indoor control

(1) Unit ON/OFF button
When the wireless remote control batteries become weak, or if the wireless remote control is lost or malfunctioning, this button
may be used to turn the unit on and off.
(a) Operation
Push the button once to place the unit in the automatic mode. Push it once more to turn the unit off.
(b) Details of operation
The unit will go into the automatic mode in which it automatically determines, from room temperature (as detected by sen-
sor), whether to go into COOL, DRY or HEAT modes.
Function
Operation mode
COOL
DRY
HEAT
(2) Auto restart function
(a) Auto restart function records the operational status of the air-conditioner immediately prior to be switched off by a power cut,
and then automatically resumes operations after the power has been restored.
(b) The following settings will be cancelled:
(i) Timer settings
(ii) HIGH POWER operation
Notes (1) Auto restart function is set at on when the air-conditioner is shipped from the factory. Consult
with your dealer if this function needs to be switched off.
(2) When power failure ocurrs, the timer setting is cancelled. Once power is resumed, reset the
timer.
(3) If the jumper wire (J1) "AUTO RESTART" is cut, auto restart is disabled.
(3) Custom cord switching procedure
If two wireless remote control are installed in one room, in order to prevent wrong opera-
tion due to mixed signals, please modify the printed circuit board in the indoor unit's con-
trol box and the wireless remote control using the following procedure. Be sure to modify
both boards. If only one board is modified, receiving (and operation) cannot be done.
(a) Modifying the indoor unit's printed circuit board
Take out the printed circuit board from the control box and cut off jumper wire (J2)
using wire cutters.
After cutting of the jumper wire, take measures to prevent contact with the other the
lead wires, etc.
(b) Modifying the wireless remote control
(i) Remove the battery.
(ii) Cut the jumper wire shown in the figure at right.
Room temperature
Fan speed Flap Timer switch
setting
About 24ºC
Auto
About 24ºC
About 26ºC
Auto Continuous
Jumper wire (J1)
Jumper wire (J2)
162
- -
'16 • SCM-T-199
Unit ON/OFF button
Cut