Sanyo MINI ECO-i SPW-CR365GXH56B Service Manual page 189

8. Local Adaptor for ON/OFF
Controller (SHA-KL4UG(B))
Securing the wiring
Make sure to secure all wiring using the clip wires inside the unit, and the
cable clamps outside the unit.
(2) Connecting to the central control unit
Connect the local adapter indoor / outdoor operation lines (CN3, (2) and (3)) to
the central control unit indoor / outdoor operation lines, as shown in the diagram
below.
These signal lines do not have polarity; either signal line may be connected
to terminals (2) and (3).
These terminals may also be connected to the indoor / outdoor operation
lines of other indoor or outdoor units.
Indoor / outdoor operation lines
Central control unit
Relay control unit
Power supply,
high-voltage
CN1
output wiring
Power supply
wiring port
If the SET / RESET output uses high voltage signaling (110 - 240 V AC), pull
that signal line out through the power supply wiring port. Bundling the high
voltage signal line with the communications lines or low-voltage signal lines,
or allowing it to touch them, may result in malfunction.
Circuit example for high-voltage set output
AC110-240V
〜
equipment
Termination Plug (JP1)
If the system is comprised of a single local adapter, and there are no air
conditioner units connected directly to the indoor / outdoor operation lines, then a
jumper must be installed on the B side of the termination plug (JP1) of the single
local adapter.
Jumper on the A side of JP1: termination resistor not connected
Jumper on the B side of JP1: termination resistor connected
no termination resistor
2 3 U1 U2
CN3
Indoor unit
Local adapter
Clip wires
Communications
and low-voltage
signal wiring
CN2 CN3
Communication
s and signal line
wiring port
Cable clamps
CN1
CN2
(factory default setting)
termination resistor connected
7 - 129
Mini ECO-i System
Remote Control Functions
7