Carrier 48/50AJ Air Conditioner User Manual


 
125
Table 122 — Field Connection Terminal Strips
TERMINAL
BOARD
TERMINAL
NO.
DESCRIPTION TYPE
TB-1 - POWER CONNECTION OR DISCONNECT (in Main Control Box)
TB1
11 L1 power supply 208-230/460/575/380/-3-60, 400-3-50
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)
TB3
1 LEN + 5 VDC, logic
2 LEN C 5 VDC, logic
3 LEN – 5 VDC, logic
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)
TB4
1 Thermostat R 24VAC
2 Thermostat Y1 24VAC
3 Thermostat Y2 24VAC
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)
TB5
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
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)
TB6
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
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)
TB7
1 L1 Power Supply 208-230/460/575/380/-3-60, 400-3-50
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