COMPLETE SYSTEM EXAMPLE (3 systems)
When using 1 remote controller for 1 indoor unit (Normal
operation) (See figure 8)
For group control or use with 2 remote controllers (See figure 10)
When including HR box (See figure 12)
1
Outdoor unit
2
Indoor unit
3
Remote controller (Optional accessories)
4
Most downstream indoor unit
5
For use with 2 remote controllers
6
HR box
NOTE
It is not necessary to designate indoor unit address
when using group control. The address is automati-
cally set when the power is activated.
Precautions
1.
A single switch can be used to supply power to units on the
same system. However, branch switches and branch circuit
breakers must be selected carefully.
2.
For a group control remote controller, choose the remote
controller that suits the indoor unit which has the most functions.
3.
Do not ground the equipment on gas pipes, water pipes, light-
ning rods or crossground with telephones. Improper grounding
could result in electric shock.
Control by 2 Remote Controllers (Controlling 1 indoor
unit by 2 remote controllers)
I
When using 2 remote controllers, one must be set to "MAIN" and
the other to "SUB".
Main/sub changeover
1.
Insert a wedge-head screwdriver into the recess between the
upper and lower part of the remote controller and, working from
the 2 positions, pry off the upper part. (See figure 11)
(The remote controller PC board is attached to the upper part of
the remote controller.)
Turn the main/sub changeover switch on one of the two remote
2.
controller PC boards to "S". (See figure 15)
(Leave the switch of the other remote controller set to "M".)
1
Remote controller PC board
2
Factory setting
3
Only one remote controller needs to be changed
CS-20•25NM1HPP
Urban Multi air conditioner
4PW12341-1A
Computerised control (forced off and on/off operation)
1.
Wire specifications and how to perform wiring.
•
Connect input from outside to terminals T1 and T2 of the
terminal board (remote controller to transmission wiring).
Wire specification
Sheathed vinyl cord or cable (2 wire)
Gauge
0.75–1.25 mm
Length
Max. 100 m
Contact that can ensure the minimum
External terminal
applicable load of 15V DC, 10 mA
See figure 14.
1
Input A
2.
Actuation
•
The following table explains "forced off" and "on/off
operations" in response to input A.
Forced off
Input "on" stops operation
Input "off" enables control
How to select forced off and on/off operation
3.
•
Turn the power on and then use the remote controller to
select operation.
•
Set the remote controller to the field set mode. For details,
refer to the chapter "How to set in the field", in the remote
controller manual.
•
When in the field set mode, select mode No. 12, then set the
first code (switch) No. to "1". Then set second code (position)
No. to "01" for forced off and to "02" for on/off operation.
(forced off at factory set.) (See figure 17)
1
Second code No.
2
Mode No.
3
First code No.
4
Field set mode
Centralized control
For centralized control, it is necessary to designate the group
I
No. For details, refer to the manual of each optional controller for
centralized control.
T
EST OPERATION
Refer to the installation manual of the outdoor unit.
I
The operation lamp of the remote controller will flash when an
error occurs. Check the error code on the liquid crystal display to
identify the trouble. An explanation of error codes and the
corresponding trouble is provided on "Caution for servicing"
sticker included in the accessory bag.
2
on/off operation
input off § on: turns on the unit
(impossible by remote controllers)
input on § off: turns off the unit
by remote controller
Installation and operation manual
5