Table 122 — Field Connection Terminal Strips

TERMINAL

TERMINAL

DESCRIPTION

TYPE

BOARD

NO.

 

 

TB-1 - POWER

CONNECTION OR DISCONNECT (in Main Control Box)

 

 

11

L1 power supply

208-230/460/575/380/-3-60, 400-3-50

TB1

12

L2 power supply

208-230/460/575/380/-3-60, 400-3-50

 

13

L3 power supply

208-230/460/575/380/-3-60, 400-3-50

TB-2 - GROUND

(in Main Control

Box)

 

TB2

1

Neutral Power

 

TB-3 - CCN

COMMUNICATIONS

(HY84HA096) (in Main Control Box)

 

 

1

LEN +

5 VDC, logic

 

2

LEN C

5 VDC, logic

 

3

LEN –

5 VDC, logic

TB3

4

24 VAC

24 VAC

5

CCN +

5 VDC, logic

 

 

6

CCN c

5 VDC, logic

 

7

CCN –

5 VDC, logic

 

8

Grd

ground

TB-4 - THEROMSTAT CONNECTIONS (HY84HA090) (in Main Control Box)

 

 

1

Thermostat R

24VAC

 

2

Thermostat Y1

24VAC

 

3

Thermostat Y2

24VAC

TB4

4

Thermostat W1

24VAC

5

Thermostat W2

24VAC

 

 

6

Thermostat G

24VAC

 

7

Thermostat C

24VAC

 

8

Thermostat X

24VAC

TB-5 - FIELD

CONNECTIONS

(HY84HA101) (in Main Control Box)

 

 

1

VAV Heater Interlock Relay, Ground

external 24 VDC relay

 

2

VAV Heater Interlock Relay, 24 VAC

external 24 VDC relay

 

3

T56 Sensor

5VDC

 

4

T56/T58 Ground

5VDC

 

5

T58 Setpoint

5VDC

 

6

Indoor Air IAQ Remote Sensor/Remote Pot/Remote 4-20 mA

4-20 mA, ext. powered w/res or 0-5 VDC

 

7

Indoor Air IAQ Remote Sensor/Remote Pot/Remote 4-20 mA

4-20 mA, ext. powered w/res or 0-5 VDC

TB5

8

Smoke Detector Remote Alarm

external contacts

9

Smoke Detector Remote Alarm

external contacts

 

 

10

Fire Shutdown

24 VAC external

 

11

Fire Shutdown

external contact

 

12

Fire Control Common

external contact

 

13

Fire Pressurization

external contact

 

14

Fire Evacuation

external contact

 

15

Fire Smoke Purge

external contact

 

16

Not Used

TB-6 - FIELD

CONNECTIONS

(HY84HA101) (in Main Control Box)

 

 

1

Remote Occupied/Economizer Enable 24 VAC

external 24 VAC contact

 

2

Remote Economizer Contact

external 24 VAC contact

 

3

Remote Occupied Contact

external 24 VAC contact

 

4

Demand Limit Contacts Common

external 24 VAC contact

 

5

Demand Limit Switch 1

external 24 VAC contact

 

6

Demand Limit Switch 2/Dehumidify Switch Input

external 24 VAC contact

 

7

Demand Limit 4-20 mA

externally powered 4-20 mA

TB6

8

Demand Limit 4-20 mA

externally powered 4-20 mA

9

Remote Supply Air Setpoint 4-20 mA

externally powered 4-20 mA

 

 

10

Remote Supply Air Setpoint 4-20 mA

externally powered 4-20 mA

 

11

Outdoor Air IAQ 4-20 mA

externally powered 4-20 mA

 

12

Outdoor Air IAQ 4-20 mA

externally powered 4-20 mA

 

13

IAQ Remote Switch

external contact

 

14

IAQ Remote Switch

external contact

 

15

Supply Fan Status Switch

 

16

Supply Fan Status Switch

TB-7 - ELECTRIC

HEAT POWER

BLOCK (in Electric Heat section)

 

 

1

L1 Power Supply

208-230/460/575/380/-3-60, 400-3-50

TB7

2

L2 Power Supply

208-230/460/575/380/-3-60, 400-3-50

 

3

L3 Power Supply

208-230/460/575/380/-3-60, 400-3-50

125

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Image 125
Carrier 48/50AJ specifications Field Connection Terminal Strips, 125