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157
Table 103 —
Field Terminal Connections
BOARD NO.
TERMINAL NO.
DESCRIPTION
TYPE
TB-1 - POWER CONNECTION OR DISCONNECT (in Power Box)
TB1
11
L1 power supply
460/575-3-60
12
L2 power supply
460/575-3-60
13
L3 power supply
460/575-3-60
GROUND (in Power Box)
Ground
1
Equipment Ground
TB201 - FIELD CONNECTIONS (in Control Box)
TB201
1
Smoke Detector Remote Alarm Input
contact 2.0 A at 30 vac
2
Smoke Detector Remote Alarm Input
contact 2.0 A at 30 vac
3
Remote Occupied/Economizer Enable 24 vac out
24 VAC Output
4
Remote Occupied/Economizer Enable 24 vac in
24 VAC Input
5
Outdoor Enthalpy Switch 24 VAC out
24 VAC Output
6
Outdoor Enthalpy Switch 24 VAC in
24 VAC Input
7
Indoor Air IAQ Remote Sensor/Remote
Pot/Remote 4-20 mA
Thermistor input or externally powered 4 to 20 mA when used with
180 ohm resistor
8
Indoor Air IAQ Remote Sensor/Remote
Pot/Remote 4-20 mA
Thermistor input or externally powered 4 to 20 mA when used with
180 ohm resistor
9
VAV Heater Interlock Relay
Contact (maximum 24 vac, 3 A)
10
VAV Heater Interlock Relay
Contact (maximum 24 vac, 3 A)
R
24 VAC Power
24 VAC Output
Y1
Thermostat Y1 (1st stage cool)
24 VAC Input
Y2
Thermostat Y2 (2nd stage cool)
24 VAC Input
W1
Thermostat W1 (1st stage heat)
24 VAC Input
W2
Thermostat W2 (2nd stage heat)
24 VAC Input
G
Thermostat G (Fan)
24 VAC Input
C
24 VAC Common
24 VAC Output
X
Alarm Output (NO)
24 VAC Output
FS1
Fire Shut Down
external contact (maximum 24 vac, 3 A)
FS2
Fire Shut Down
external contact (maximum 24 vac, 3 A)
T55-1
Space Sensor TH
Thermistor Input
T55-2
Space Sensor COM
Thermistor Input
T55-3
Space Sensor Offset Switch
Thermistor Input
(+)
CCN +
Communication
(COM)
CCN Common
Communication
(-)
CCN -
Communication
SHIELD
Ground
Ground
LEN
Local Equipment Network
Communication
CCN
Carrier Comfort Network
Communication
TB202 - FIELD CONNECTIONS CEM (in Main Control Box)
TB202
1
Not Used
—
2
Not Used
—
3
Space Humidity 4-20 mA (-)
4 to 20 mA signal
4
Space Humidity 4-20 mA (+)
4 to 20 mA loop power
5
Ground
Ground
6
Outdoor Air IAQ 4-20 mA (-)
4 to 20 mA signal
7
Outdoor Air IAQ 4-20 mA (+)
4 to 20 mA loop power
8
Supply Air Reset 4-20 mA (-)
4 to 20 mA signal
9
Supply Air Reset 4-20 mA (+)
4 to 20 mA loop power
10
Demand Limit 4-20 mA (-)
4 to 20 mA signal
11
Demand Limit 4-20 mA (+)
4 to 20 mA loop power
12
IAQ Switch 24 VAC in
external contact (maximum 24 vac, 3 A)
13
IAQ Switch 24 VAC out
external contact (maximum 24 vac, 3 A)
14
Fire Smoke Purge 24 VAC in
external contact (maximum 24 vac, 3 A)
15
Fire Smoke Purge 24 VAC out
external contact (maximum 24 vac, 3 A)
16
Fire Evacuation 24 VAC in
external contact (maximum 24 vac, 3 A)
17
Fire Evacuation 24 VAC out
external contact (maximum 24 vac, 3 A)
18
Fire Pressurization 24 VAC in
external contact (maximum 24 vac, 3 A)
19
Fire Pressurization 24 VAC out
external contact (maximum 24 vac, 3 A)
20
Demand Limit Loadshed 24 VAC in
external contact (maximum 24 vac, 3 A)
21
Demand Limit Loadshed 24 VAC out
external contact (maximum 24 vac, 3 A)
22
Demand Limit Redline 24 VAC in
external contact (maximum 24 vac, 3 A)
23
Demand Limit Redline 24 VAC out
external contact (maximum 24 vac, 3 A)
24
Humidistat
external contact (maximum 24 vac, 3 A)
25
Humidistat
external contact (maximum 24 vac, 3 A)
Содержание WeatherExpert 48N2
Страница 135: ...135 Fig 18 48 50N Typical Power Schematic Nominal 075 Ton Unit Shown ...
Страница 136: ...136 Fig 19 48 50N Typical Power Schematic Nominal Ton 90 150 Units Shown ...
Страница 137: ...137 Fig 20 48 50N Main Base Board Input Output Connections ...
Страница 138: ...138 Fig 21 48 50N RXB EXB CEM Input Output Connections a48 9307 ...
Страница 139: ...139 Fig 22 48 50N EXV SCB Input Output Connections a48 9308 ...
Страница 140: ...140 Fig 23 48N Typical Modulating Gas Heat Unit Control Wiring ...
Страница 141: ...141 Fig 24 50N Typical Electric Heat Unit Control Wiring ...
Страница 144: ...144 Fig 27 48N Typical Gas Heat Section Wiring Nominal Ton 120 to 150 Units ...
Страница 145: ...145 Fig 28 48 50N Typical Power Component Control Wiring 460 v ...
Страница 146: ...146 Fig 29 48 50N Component Control Wiring 575 v Nominal Ton 075 to 150 Units ...
Страница 147: ...147 Fig 30 48 50N Component Arrangement Power Box ...
Страница 148: ...148 Fig 31 48 50N Component Arrangement Control Box ...
Страница 168: ...168 Fig 47 Sensor and Ignition Position Fig 48 Combustion Blower Details SENSOR DETAILS IGNITION DETAILS ...
Страница 240: ...240 APPENDIX D VFD INFORMATION CONT Fig G VFD Bypass Wiring Diagram WHEN USED ...