Sanyo MINI ECO-i SPW-CR365GXH56B Service Manual page 235

11. Schedule Timer
(SHA-TM64AG(B))
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.
More than
95 mm
(From wall)
Remote controller
wiring outlet
JIS C8340
Switch box for 1
switch (no cover)
Fig. 3
Wiring the Schedule Timer
● Before beginning wiring
2
– Use 0.5 – 2 mm 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)
Communications wiring
(Inter-unit control wiring)
Do not allow a screwdriver or other
Pre-
metal object to touch the PCB
cautions
terminals when the power is ON.
All switches are
OFF when the unit
Communi-
is shipped.
cations
: OFF
terminal
: ON
Connected device
1
Inter-unit Remote controller
communication (4 wires)
Timer group setting
2
3
1Gr 2Gr 3Gr
fixed fixed fixed
Schedule timer address
5
6
7
1 2 3 4 5
Fig. 5
More than 125 mm
(For connected
installation)
Power wiring
Remote controller
wiring outlet
(remote
Power
controller
terminal
terminal)
Permitted items for
controller operation
1
Permit all modes Permit the below items only
Prohibited items for controller operation
2
3
4
Manual
assignment
Current-time synchro-
nization communication
6 7 8
More than
95 mm
(From wall)
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.
<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.)
System 1 System 2
Inter-unit control
wiring
1-1 1-2 1-3 2-1
<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,
CAUTION
avoid the use of cross-over wiring.
● Connection diagram (Be sure to use the provided wires as the
power wiring.)
7 - 175
Mini ECO-i System
Remote Control Functions
More than
125 mm
(For connected
installation)
Fig. 4
System
3
2-3 3-1
2-2
Schedule timer
Fig. 6
7