User Manual

Overview
Connection Diagram
9
Siemens Industry, Inc.
Application Note, App 14900
140-1231
2020-02-11
Heating
Stages
Cooling
Stages
Y1
Y2
W1
W2
O/B
OUT1
(AuxOut1)
3
3
Stage 1
Cooling
Stage 2
Cooling
Stage 1
Heating
Stage 2
Heating
Stage 3
Heating
Stage 3
Cooling
Connection Diagram
Table 2: Standard Conventional Connection Diagram
C
HVAC Control Circuit Common
RC
24 Vac from Transformer on Cooling System
RH
24 Vac from Transformer on Heating System
G
Fan
Y1
First Stage Cooling
Y2
Second Stage Cooling
O/B
Third Stage Heating (only when Third Stage Heating is enabled), or Third Stage Cooling.
(only when Third Stage Cooling is enabled and Third Stage Heating is not enabled)
W1
First Stage Heating
W2
Second Stage Heating
OUT1
Third Stage Cooling (only when both Third Stage Cooling and Heating are enabled)
OUT2
Configurable Output
OUT3
Configurable Output
INC
Configurable Input Common
IN1
Configurable Input 1
IN2
Configurable Input 2
IN3
Configurable Input 3
IN4
Configurable Input 4
Ordering Notes
Part Number: RDY2000BN Siemens RDY2000 BACnet Thermostat