Mitsubishi Electric Mr.SLIM PC-2GAKD Technical & Service Manual page 56

(2) Basic wiring diagram
Remote/Local
selection switch
Control circuit
SW
power supply 1
SW
2
Dedicated short
circuit prevention
device
One method of easily
distinguishing the on/off
status of SW1 and SW2
is to use together with a
"illuminated switch R" or
pilot lamp.
Note: When using group address, connect to refrigerant
address "0" on the inside.
2. Examples of system applications
In any of the following examples, there is 5 to 6 seconds delay from the time the operating command is issued until the oper-
ation begins.
1 This is when starting and stopping is performed by remote operation or external timer and when starting and stopping by
the remote controller is to be prohibited.
Orange
Red
SW1
Brown
On site wiring
2 This is when starting and stopping are performed by remote operation or external timer and when starting and stopping by
the remote controller is to be separated.
Orange
Red
SW1
SW2
Brown
On site wiring
3 This is when starting and stopping are performed by remote operation and then allowing starting or stopping by remote
control at any time.
Orange
Red
SW2
Brown
On site wiring
4 This is when permitting or prohibiting operation by remote controller is performed by external circuit.
This is not used.
Protect exposed wire by
wrapping with insulating tape
No.1 unit No.2 unit
relay box relay box
T T
X X
2 2
T T
X X
2 2
Brown Brown
Orange Orange
Red Red
Indoor unit
circuit board
CN32
For remote operation
Indoor unit
circuit board
CN32
For remote operation
Indoor unit
circuit board
Use momentary switch for SW2. (Manual operation/automatic recover switch on
time is more than 1 second.)
Press SW2 (on time is more than 1 second) and operation starts. After this has
been done, stopping or restarting can be done by remote controller.
CN32
Orange
Red
SW2
Brown
On site wiring
(3) Part specifications
To
next
unit
Remote
SW1 ON
control
Remote/Local
SW2
selection switch
Description of
• Starting/stopping
functions
with remote
controller disabled.
• AC is in operation.
• Starting/stopping by
remote operation
enabled.
Timer
On site wiring
Timer
SW2
On site wiring
Indoor unit
circuit board
If SW2 is on, operation by remote controller cannot be
performed.
CN32
If SW2 is off, operation by remote controller is permitted.
56
1 Remote/Local 2 Adapter for
selection switch remote start/stop
(Example) Model
Single polarity PAC-SE55RA-E
single-throw switch (optional parts)
(125V rating)
OFF
ON OFF ON
• Starting/stopping • Starting/stopping
with remote with remote
controller disabled. controller disabled.
• AC is in operation.
• Starting/stopping by • Starting/stopping by
remote operation remote operation
enabled. enabled.
Indoor unit
circuit board
Orange
Red
CN32
Brown
For timer operation
Indoor unit
circuit board
Orange
Red
CN32
Brown
3 Relay box
T Timer
(On delay system)
X Relay
OFF
• Starting/stopping
with remote
controller disabled.
• Starting/stopping by
remote operation
enabled.