Table of Contents
12.17 External Room Thermostat Control (Optional)
Purpose:
1
Better room temperature control to fulfill different temperature request by external room thermostat.
Recommended external room thermostat:
Connection of external room thermostat:
Wire Connection and thermo characteristic of Siemen REV200:
Setting
Set Temp < Actual Temp
Set Temp > Actual Temp
Wire Connection and thermo characteristic of Siemen RAA20:
Setting
Set Temp < Actual Temp
Set Temp > Actual Temp
Control Content:
External room thermostat control activate only when remote thermostat connection select YES by Indoor control
panel.
When indoor running heat mode, refer thermo On/Off from heating line feedback. And when indoor running cool
mode, refer thermo On/Off from cooling line feedback.
Heat pump Off immediately when receive thermo off feedback.
Maker
Siemen (REV200)
Siemen (RAA20)
L/L1 (H)
Heat Thermo
Open Circuit
Short Circuit
L/Y1 (H)
Heat Thermo
Open Circuit
Short Circuit
61
Characteristic
Touch panel
Analog
L/L2 (C)
OFF
Short Circuit
ON
Open Circuit
L/Y2 (C)
OFF
Short Circuit
ON
Open Circuit
Cool Thermo
ON
OFF
Cool Thermo
ON
OFF
Table of Contents
