6 Optional functions
214
SMGB0077 rev.0 - 01/2013
Changing the optional signals and setting conditions
a.
In optional setting mode, the remote control indication changes as shown below:
1 The assigned port for the input signal and the output signal are displayed
in the time indication segments for the timer setting. See the following
table for the indicated port and the PCB connector of the indoor unit.
2 The input and output signal codes are indicated in the temperature setting
segments.
b.
Press the TIME▲ or TIME▼ button on the remote control to select the port to which
the input and output signals are to be assigned.
c.
Press the OK button. The port indication in the timer setting time indication segments
changes as shown in the gure below.
Returning from optional function setting mode
Press RESET to store the optional function settings and return to normal mode.
Indoor unit selection
In optional function setting mode, press TEMP ▲ or TEMP ▼ to select the indoor unit on which the optional function is to be set.
Connectors CN3, CN7 and CN8 are factory-set with the following optional functions.
Connector
no.
Connector terminal Function Factory settings
Inlet CN3
1–2
03
Function 1. Remote unit On/Off
2–3
06
Cancellation of commands from the remote control after a
forced stoppage
Outlet
CN7
1–2
01
Operation signal
1–3
02
Alarm signal
CN8 (Not for
RPK)
1–2
06
Thermostat enabled signal during heating
6.1.4 Description of optional input signals
Control by eld-supplied room thermostat
On-screen display: 01 or 02.
When a eld-supplied room thermostat is used instead of the inlet thermistor on the indoor unit, connect the wiring and use
the materials as indicated in Available ports.
Specications for eld-supplied room thermostat:
• Manufacturer or type: equivalent to YAMAKATE R7031P005, R7031Q005.
• Contactor charge: 12 Vdc
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