Carrier WeatherExpert 48N2 Controls, Start-Up, Operation, Service, And Troubleshooting page 157

BOARD NO. TERMINAL NO.
TB-1 - POWER CONNECTION OR DISCONNECT (in Power Box)
11
TB1 12
13
GROUND (in Power Box)
Ground 1
TB201 - FIELD CONNECTIONS (in Control Box)
1
2
3
4
5
6
7
8
9
10
R
Y1
Y2
W1
TB201
W2
G
C
X
FS1
FS2
T55-1
T55-2
T55-3
(+)
(COM)
(-)
SHIELD
LEN
CCN
TB202 - FIELD CONNECTIONS CEM (in Main Control Box)
1
2
3
4
5
6
7
8
9
10
11
12
TB202 13
14
15
16
17
18
19
20
21
22
23
24
25
Table 103 — Field Terminal Connections
DESCRIPTION
L1 power supply
L2 power supply
L3 power supply
Equipment Ground
Smoke Detector Remote Alarm Input
Smoke Detector Remote Alarm Input
Remote Occupied/Economizer Enable 24 vac out
Remote Occupied/Economizer Enable 24 vac in
Outdoor Enthalpy Switch 24 VAC out
Outdoor Enthalpy Switch 24 VAC in
Indoor Air IAQ Remote Sensor/Remote
Pot/Remote 4-20 mA
Indoor Air IAQ Remote Sensor/Remote
Pot/Remote 4-20 mA
VAV Heater Interlock Relay
VAV Heater Interlock Relay
24 VAC Power
Thermostat Y1 (1st stage cool)
Thermostat Y2 (2nd stage cool)
Thermostat W1 (1st stage heat)
Thermostat W2 (2nd stage heat)
Thermostat G (Fan)
24 VAC Common
Alarm Output (NO)
Fire Shut Down
Fire Shut Down
Space Sensor TH
Space Sensor COM
Space Sensor Offset Switch
CCN +
CCN Common
CCN -
Ground
Local Equipment Network
Carrier Comfort Network
Not Used
Not Used
Space Humidity 4-20 mA (-)
Space Humidity 4-20 mA (+)
Ground
Outdoor Air IAQ 4-20 mA (-)
Outdoor Air IAQ 4-20 mA (+)
Supply Air Reset 4-20 mA (-)
Supply Air Reset 4-20 mA (+)
Demand Limit 4-20 mA (-)
Demand Limit 4-20 mA (+)
IAQ Switch 24 VAC in
IAQ Switch 24 VAC out
Fire Smoke Purge 24 VAC in
Fire Smoke Purge 24 VAC out
Fire Evacuation 24 VAC in
Fire Evacuation 24 VAC out
Fire Pressurization 24 VAC in
Fire Pressurization 24 VAC out
Demand Limit Loadshed 24 VAC in
Demand Limit Loadshed 24 VAC out
Demand Limit Redline 24 VAC in
Demand Limit Redline 24 VAC out
Humidistat
Humidistat
460/575-3-60
460/575-3-60
460/575-3-60
contact 2.0 A at 30 vac
contact 2.0 A at 30 vac
24 VAC Output
24 VAC Input
24 VAC Output
24 VAC Input
Thermistor input or externally powered 4 to 20 mA when used with
180 ohm resistor
Thermistor input or externally powered 4 to 20 mA when used with
180 ohm resistor
Contact (maximum 24 vac, 3 A)
Contact (maximum 24 vac, 3 A)
24 VAC Output
24 VAC Input
24 VAC Input
24 VAC Input
24 VAC Input
24 VAC Input
24 VAC Output
24 VAC Output
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
Thermistor Input
Thermistor Input
Thermistor Input
Communication
Communication
Communication
Ground
Communication
Communication
—
—
4 to 20 mA signal
4 to 20 mA loop power
Ground
4 to 20 mA signal
4 to 20 mA loop power
4 to 20 mA signal
4 to 20 mA loop power
4 to 20 mA signal
4 to 20 mA loop power
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
157
TYPE