Carrier WEATHERMASTER 48/50Z030-105 Operation And Service Manual page 119

BOARD TERMINAL
NO. NUMBER
TB-1 - POWER CONNECTION OR DISCONNECT (in Main Control Box)
11 L1 power supply
TB1 12 L2 power supply
13 L3 power supply
NEUTRAL (in Main Control Box)
Neutral 1 Neutral Power
CCN COMMUNICATIONS (in Main Control Box)
1 LEN +
2 LEN C
3 LEN –
4 24 vac
Comm Port
5 CCN +
7 CCN c
7 CCN –
8 Grd
TB201 - FIELD CONNECTIONS (in Main Control Box)
1 Remote Occupied/Economizer Enable 24 vac out
2 Remote Occupied/Economizer Enable 24 vac in
3 Not Used
4 OD Enthalpy Switch in
5 Fire Shut Down
6 Fire Shut Down
7 VAV Heater Interlock Relay
8 VAV Heater Interlock Relay
TB201
9 Humidifier Output, Ground
10 Humidifier Output, 24 VAC
11 Unit Alarm Output
12 Unit Alarm Output
13 Smoke Detector Alarm Input
14 Smoke Detector Alarm Input
15 Not Used
16 Not Used
TB202 - THERMOSTAT CONNECTIONS (in Main Control Box)
1 Thermostat R
2 Thermostat G
3 Thermostat W2
4 Thermostat W1
5 Thermostat Y2
6 Thermostat Y1
7 Not Used
8 Space Sensor TH
9 Space Sensor COM
TB202
10 Space Sensor Offset SW
Indoor Air IAQ Remote Sensor/Remote
11
Pot/Remote 4-20 mA
Indoor Air IAQ Remote Sensor/Remote
12
Pot/Remote 4-20 mA
13 Not Used
14 Not Used
15 Not Used
16 Not Used
TB203 - FIELD CONNECTIONS (in Main Control Box)
1 Ground
2 Demand Limit 4-20 mA (+)
3 Demand Limit 4-20 mA (-)
4 Supply Air Reset 4-20 mA (+)
5 Supply Air Reset 4-20 mA (-)
6 Outdoor Air IAQ 4-20 mA (+)
7 Outdoor Air IAQ 4-20 mA (-)
8 Space Humidity 4-20 mA (+)
TB203
9 Space Humidity 4-20 mA (-)
10 Not Used
11 Not Used
12 Not Used
13 Not Used
14 Not Used
15 Not Used
16 Not Used
LEGEND
IAQ — Indoor Air Quality
VAV — Variable Air Volume
Table 92 — Field Terminal Connections
DESCRIPTION
119
TYPE
208-230/460/575/380/-3-60, 400-3-50
208-230/460/575/380/-3-60, 400-3-50
208-230/460/575/380/-3-60, 400-3-50
5 vdc, logic
5 vdc, logic
5 vdc, logic
24 vac
5 vdc, logic
5 vdc, logic
5 vdc, logic
ground
external contact (maximum 24 vac, 3 A)
external contact (maximum 24 vac, 3 A)
—
24 vac
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)
—
—
24 vac output
24 vac input
24 vac input
24 vac input
24 vac input
24 vac input
—
Thermistor input
Thermistor input
Thermistor 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
ground
4 to 20 mA loop power
4 to 20 mA loop power
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
4 to 20 mA signal
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