Carrier 33CS - Page 5

5
COM
G3/(Y)
G2/(W)
G
LO
MED
HI
(HEAT)
(COOL)
(VALVE)
FAN
24vac
R
C
COM
G
G3(Y)
G2(W)
R
C
G2
W1
G3
G
V
24 Volt Water
Valve
Y1
33ZCRLYBRD
THERMOSTAT
Fig. 5 — Typical Wiring Diagram — 2-Pipe, Low Voltage Valve, Heat Only or Cool Only
COM
G3/(Y)
G2/(W)
G
LO
MED
HI
(HEAT)
(COOL)
(VALVE)
FAN
24vac
R
C
COM
G
G3(Y)
G2(W)
RS+5
RS GND
RS
REMOTE SENSOR
DRY CONTACT
33CSSEN-01
33CSSEN-WB
33CSSEN-DS
33ZCRLYBRD
R
C
R
C
G2
G3
G
RS+5
RS
H2O
Ck1
THERMOSTAT
Y1
W1
HC
24 Volt Water
Valves
Fig. 4 — Typical Wiring Diagram — 4-Pipe, Low Voltage Valves,
Remote Temperature Sensor and Dry Contact