Distech Controls RT Series - Wiring Identification and Terminals; Terminal Block Arrangement; Important Wiring Notes

4
Wiring identification & screw terminal arrangement
Multistage
1H / 1C
Heat Pump
Product Name
STAT-RT2EP
STAT-RT2P
STAT-RT1P
Product Name
STAT-HPP
Programmable
Yes
Yes
Yes
Programmable
Yes
Top left terminal block
Top left terminal block
Y2
X
X
Y2
X
Y1
X
X
X
Y1
X
G
X
X
X
G
X
RC
X
X
X
RC
X
C
X
X
X
C
X
Top right terminal block
Top right terminal block
RH
X
X
X
RH
X
W1
X
X
X
W1
X
W2
X
X
O/B
X
Bottom terminal block
Bottom terminal block
Econo
X
Aux
X
X
X
Aux
X
DI1
X
X
X
DI1
X
DI2
X
X
X
DI2
X
RS
X
X
X
RS
X
Scom
X
X
X
Scom
X
OS
X
X
X
OS
X
MS
X
X
X
MS
X
Screw terminal arrangement
Wiring notes:
Note 1: If the same power source is used for the heating stages, install jumper across RC & RH. Maximum current is 2.0 amps.
Note 2: If auxiliary output is used to toggle occupancy of the electronic control card inside the equipment, configure the relay parameter
(Aux cont ) to the N.O. setting. A second relay can be added for additional functionality of the occupancy output.
Note 3: Economizer output uses a half bridge rectifier. Reference of the control signal is the common of the power supply of the
thermostat. (terminal C)
Note 4: Electromechanical contacts are to be used with the digital inputs. Electronic triacs cannot be used as mean of switching for the
input. The switched leg to the input for the input to activate is terminal C ( common )
Note 5: The transformer of the unit provides power to the thermostat and the additional loads that will be wired to the thermostat.
EC
AU
D1
D2
RS
Scom
OS
MS
Y2
Y1
G
RC
C
RH
W1
W2
O/B
5 pole left top connector
3 pole left top connector
8 pole bottom connector
Fig.7