Control of W-2WAY ECO-i SYSTEM
5. Schedule Timer
Installation of Connected Schedule Timers
When installing schedule timers (remote controller switches, system controllers, etc.) onto the wall, use the method shown in
Figs. 3-49 and 3-50.
Fig. 3-50
Fig. 3-49
(For connected
installation)
Remote controller
wiring outlet
JIS C8340
Switch box for 1
switch (no cover)
More than
95 mm
More than 125 mm
(From wall)
More than
95 mm
More than
125 mm
(From wall)
(For connected
installation)
Remote controller
wiring outlet
JIS C8340
Switch box for 2
switches (no cover)
* For maintenance reasons, leave a gap of 25 mm or more between the
remote controller switch and schedule timer if they are arranged in
parallel above/below each other.
Wiring the Schedule Timer
Before beginning wiring
– Use 0.5 – 2 mm
2
wires for field supply wiring.
– For inter-unit control wiring, use signal wires that allow the
remote controller wiring to be differentiated from the power
wiring, and take care to prevent miswiring. (Miswiring will
damage the schedule timer.)
– Check that the schedule timer communications wiring and
power wiring are connected correctly. (Fig. 3-51)
<Basic Wiring Diagram>
Route the A/C inter-unit control wiring for central control
as shown in the figure at right.
The maximum number of indoor units that can be con-
nected to a single system is 64. The maximum number of
outdoor units is 30.
The maximum number of schedule timer units that can be
connected is 8. (A maximum of 10 schedule timer units
and other central control devices can be connected.)
Fig. 3-51
Fig. 3-52
1
Do not allow a screwdriver or other
metal object to touch the PCB
terminals when the power is ON.
Pre-
cautions
Power
terminal
(remote
controller
terminal)
Permitted items for
controller operation
Permit all modes
Permit the below items only
Prohibited items for controller operation
Current-time synchro-
nization communication
Te mp .
setting
Opr.
mode
Start/
Stop
Remote controller prohibit
not used.
Schedule timer address
Timer group setting
Connected device
Communi-
cations
terminal
All switches are
OFF when the unit
is shipped.
: OFF
: ON
1Gr
fixed
2Gr
fixed
3Gr
fixed
Manual
assignment
2
3
1
5
6
7
1
2
34
56
7
8
2
3
4
Inter-unit
communication
Remote controller
(4 wires)
Communications wiring
(Inter-unit control wiring)
Power wiring
Remote controller
wiring outlet
1-1 1-2 2-21-3
2-3
2-1
3-1
System 1 System 2
System
3
Schedule timer
Inter-unit control
wiring
Depending on the model of A/C, a local adapter
may be required.
NOTE
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