Carrier WeatherExpert 50LC14 Installation Instructions Manual page 53

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