Service manual

54
NOTE1 : Install the relay box where you can be serviced it easily.
NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control
circuit.
NOTE3 : When the power supply of the control circuit is 220/240V AC,
● Do not connect the control circuit wire to the remote controller cable directly.
● Do not place the control circuit wire and the remote controller cable into the same conduit tube.
3-2 Basic wiring
Caution : Before starting all units simultaneously by the remote ON-OFF switch, be sure to connect a sequence-start timer
into the remote ON-OFF circuit. Otherwise, a rush of starting current may damage the power supply.
w1After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller.
w2After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller.
3-3 Switch function of remote ON-OFF switch
SW1
(Switches between
remote ON and OFF.)
ON
(Start)
OFF
(Stop)
All units start together.
Individual control is not available.
All units start together.
Individual control is not available.
SW2
(Switches between remote ON-OFF and individual control)
ON
(Remote ON-OFF control)
Each unit can be controlled by each
remote controller.
Remote ON-OFF switch is not available.
OFF
(Individual control)
w1
w2
Power
supply
Remote
ON/OFF
switch
No.1 unit
relay box
No.2 unit
relay box
Next unit
T
X2 X2
T
Glow switch or pilot lamp can be
combined to easily identify the
on-off mode of SW1 and SW2.
To
No.1
unit
To
No.2
unit
Timer adapter cables
Remote controller
T
X2
SW
1
SW2
T
X2
3. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS
This method is available to control one unit or any number of units.
The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switch
to the system. Timer adapter is an optional part. Other parts are available on the market.
(A) To start all units in order by remote ON-OFF switch
(B) To stop all units simultaneously by remote ON-OFF switch
(C) To switch between the remote ON-OFF control and the individual remote control
3-1 System
Figure 6 shows the case of three units.The same is the case with any number of units.
Remote
controller
power supply of
control circuit
Remote
ON/OFF
switch
2-wire
remote
controller
cable
Figure 6
Relay box
Timer adapter cables
Timer adapter
PAC-SA89TA-E