4.7.11 1-Stage Heating Or Cooling With Reversing Valve - Siemens RDG100 Basic Documentation

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ON/OFF control
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4.7.11 1-stage heating or cooling with reversing valve

On this application, the thermostat controls a compressor in heating or cooling
mode with changeover (automatic or manual). Cooling only is factory-set (P01=1).
 Set basic application "4-pipe" (see section 4.7.6)
 Connect compressor and reversing valve as follows:
RV
This application is available with RDG110 only.
The diagrams below show the control sequences for 2-position control.
Heating mode with manual selection
(P01 = 2)
Y
C1 (H)
1
w
0
½ SDH ½ SDH
Y12
RV
1
w
0
Heating and cooling mode (P01=04)
Y
C1 (H)
C1 (C)
½ x
½ x
dz
dz
1
w
0
½ SDC
½ SDH ½ SDH
Y12
RV
1
w
0
RDG100, RDG100T, RDG110, RDG140, RDG160
Functions
ON
OFF
C1
Cooling mode with manual selection
(P01 = 2)
Y
1
T[°C]
0
½ SDC
Y12
1
T[°C]
0
T[°C] Room temperature
w
Y11
Y21
T[°C]
Y12
½ SDC
SDH Switching differential "Heating" (P30)
SDC Switching differential "Cooling" (P31)
X
dz
T[°C]
Basic Documentation
1 2 3
C1 (C)
w
T[°C]
½ SDC
RV
w
T[°C]
Room temperature setpoint
Control command "Compressor" (H)
Control command "Compressor" (C)
Control command "Reversing valve"
(heating = ON )
Dead zone (P33)
CE1P3181en
14 Dec 2011