Carrier 33CS400-01 Installation Instructions

Page 4.1
SECTION 4
Wire ConnectionsWire Connections
4
If the terminal designations on your old thermostat
do not match those on the new thermostat, refer
to the chart below, or the wiring diagrams
that follow.
Wire from the
old thermostat
terminal marked
Function
Install on the
new thermostat
connector marked
G or F Fan G
Y1, Y or C
Cooling Y1
W1, W or H
Heating
W1/O/B
PowerRh, R, M, Vr, A R
C
O/B
C
Common
Rev. Valve
W2
2nd Stage Heat
RS+5
Remote Sensor +5vdc
Remote Sensor Signal
CKGND
Dry Contact Switch 2
RS+5
RS1RS1
RSGND
Remote Sensor Ground
RSGND
CK1
Dry Contact Switch 1
CK1
CKGND
W2
MISC1
MISC2
MISC3
MISC1
MISC2
MISC3
RS2 RS2
Remote Sensor Signal #2
Configurable Output #1
Configurable Output #2
Configurable Output #3
* O/B is used if your system is a Heat Pump.
** For instructions on connecting these terminals see page 15.2
of the Owner’s Manual.
RS+5**
RS1**
RSGND**
W1/O/B*
RS2**

Carrier 33CS400-01 Specifications

General

Brand	Carrier
Model	33CS400-01
Category	Thermostat
Language	English