7
- 175
Mini ECO-i System
Remote Control Functions
7
11. Schedule Timer
(SHA-TM64AG(B))
Fig. 3
(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)
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 and 4.
Fig. 4
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.
Fig. 5
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
Temp. 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
3
4
5
6
7
8
2
3
4
Inter-unit
communication
Remote controller
(4 wires)
Communications wiring
(Inter-unit control wiring)
Power wiring
Remote controller
wiring outlet
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. 5)
Fig. 6
1-1
1-2
2-2
1-3
2-3
2-1
3-1
System 1
System 2
System
3
Schedule timer
Inter-unit control
wiring
<Basic Wiring Diagram>
●
Route the A/C inter-unit control wiring for central control as
shown in the figure below.
●
The maximum number of indoor units that can be connected to
a single system is 64. The maximum number of outdoor units is
30.
●
The maximum number of schedule timer units that can be con-
nected is 8. (A maximum of 10 schedule timer units and other
central control devices can be connected.)
<Note> Depending on the model of A/C, a local adapter may be
required.
●
Wiring
The schedule timer wiring can be connected by the following two
methods. Select one of these connection methods according to the
actual installation location.
When wiring, extend the lengths of the wires using wire joints (pro-
vided) and extension wires (field supply).
When installing multiple schedule timers,
avoid the use of cross-over wiring.
●
Connection diagram (Be sure to use the provided wires as the
power wiring.)
CAUTION
06-408 Mini_ECOi_SM7 11/10/06 7:25 PM Page 175
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