Mitsubishi Electric Mr.Slim PLH42AK, Technical & Service Manual

Page: 53 / 73

OC193-51
SYSTEM CONTROL
12
1
Group control by a
single remote con-
troller
(See page
OC193-52.)
Unit
Remote
controller
Unit Unit
A number of units, installed at different locations can be
started and controlled with a single remote controller. The
remote controller can be mounted in a different location
using a non-polar two-wire cable, which can be extended
up to 550 yards. A maximum of 50 units are controllable
by a single remote controller. All units operate in the
same mode.
2
Control using two
remote controllers
(See page
OC193-53.)
Unit
Remote
controller
Unit Unit
Two remote controllers can be used to control either one
unit or several units in group control. This enables to con-
trol units with ease either from a distance or close rang.
Units operate according to the latest command from either
remote controller.
3
Both remote ON/
OFF and individ-
ual controls
(See page
OC193-53.)
Remote
ON/OFF
switch
Optional
adapter
Relay box
Remote
controller
Unit
All units can be turned on or off simultaneously using the
remote ON-OFF switch. Besides each unit can be con-
trolled individually by each remote controller. During
remote ON-OFF control, a message of “CENTRALLY
CONTROLLED” is displayed on the LCD of the remote
controller.
This method is available for both one unit control and sev-
eral units control.
4
Individual control
by grouping
remote controllers
(See page
OC193-54.)
Unit
Remote
controller
Unit Unit
By grouping the remote controllers to one place, several
units installed at different locations can be controlled indi-
vidually, and operation conditions of all units are visible
without a special control board. Control method is the
same as that of the single unit with a single remote con-
troller.
5
Multiple remote
control display
(See page
OC193-55.)
Unit
Remote control
display board
Remote
controller
Unit Unit
Several units can be controlled by remote control display
board. Operation conditions of all the units are visible
with the remote control display board.
Individual control by each remote controller is also avail-
able.
6
AUTO RESTART
FUNCTION
(See page
OC193-55.)
Remote
controller
Circuit breaker
Units can be started or stopped by circuit breaker on or
off.
Remote controller is also available.
By this function, when the power is restored after power
failure, the unit restarts automatically.
1. VARIETY OF SYSTEM CONTROL FUNCTIONS