Carrier WeatherExpert 50LC14 - Page 53

53
Fig. 70 — W7220 Sensor and Control I/O Connections
Fig. 71 — Actuator/S-Bus
POWER EXHAUST RELA
Y
TSTAT W1
OCCUPANCY --- TSTAT G
GROUND
24-V POWER
TSTAT Y3
TSTAT Y1
ECON
(2)
OFF STATUS
24-V COM
BRN
ORN
PNK
VIO
GRA
GRA
BLK
BLU
BLK
BLU
MAT
MAT
OAT
OAT
S - BUS
S - BUS
IAQ - 2 - 10
IAQ COM
IAQ 24V+
ACT - 2 - 10
ACT COM
ACT 24V+
1
2
1
2
1
2
1
2
3
1
2
3
4
WHT
BLK
GRN/YEL
VIO
6
5
4
3
2
1
YEL
ORN
BLU
GRA
BRN
RED
6
5
4
3
2
1
AUX2-I
OCC
EXH 1
AUX1-O
E- GND
Y2 - I
Y1 - I
Y1 - O
C
R
Y2 - O
W7220
CONTROLLER
W1
BLUEGRAY
OAT
(1)
20-K OHM
PNO HH79NZ007
SAT
20-K OHM
PNO HH79NZ007
CO
2
SENSOR
(1)
If no Enthalpy sensor connected
(2)
24V @ Y1-0 means Stage 1 mechanical cooling
BRN
ORN
PNK
VIO
GRA
GRA
BLK
BLU
BLK
BLU
MAT
MAT
OAT
OAT
S - BUS
S - BUS
IAQ - 2 - 10
IAQ COM
IAQ 24V+
ACT - 2 - 10
ACT COM
ACT 24V+
1
2
1
2
1
2
1
2
3
1
2
3
4
WHT
BLK
GRN/YEL
VIO
6
5
4
3
2
1
YEL
ORN
BLU
GRA
BRN
RED
6
5
4
3
2
1
AUX2-I
OCC
EXH 1
AUX1-O
E- GND
Y2 - I
Y1 - I
Y1 - O
C
R
Y2 - O
W7220
CONTROLLER
W1
BLUEGRAY
1 2 3 4
ECONO
ACTUATOR
ENTHALPY
SENSOR
1 2