Carrier WEATHERMAKER 48A4, Wiring Diagrams

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INPUT/OUTPUT CHANNEL DESIGNATIONS — CONTROLS EXPANSION BOARD
INPUT/OUTPUT CHANNEL DESIGNATIONS — FIELD CONNECTION TERMINAL STRIPS
* This input is available only if accessory or optional CEM is installed.
POINT
NAME
POINT DESCRIPTION
I/O POINT
NAME
PLUG AND PIN
REFERENCE
SIGNAL PIN(S) PORT STATE
INPUTS
SFS Supply Fan Status switch DI 1 J7, 1-2 2 0 = 24vac, 1= 0vac
DMD_SW1 Demand Limit - SW1 DI 2 J7, 3-4 4 0 = 24vac, 1= 0vac
DMD_SW2/DHDISCIN Demand Limit - SW2 / Dehumidification Switch Input DI 3 J7, 5-6 6 0 = 24vac, 1= 0vac
PRES Pressurization DI 4 J7, 7-8 8 0 = 24vac, 1= 0vac
EVAC Evacuation DI 5 J7, 9-10 10 0 = 24vac, 1= 0vac
PURG Purge DI 6 J7, 11-12 12 0 = 24vac, 1= 0vac
IAQIN Indoor Air Quality Switch DI 7 J7, 13-14 14 0 = 24vac, 1= 0vac
AN7 J6, 1-3 2 (1 = loop power) (0-20mA input)
DMDLMTMA 4-20mA Demand Limit AN8 J6, 4-6 5 (4 = loop power) (0-20mA input)
EDTRESMA 4-20mA Evaporator Discharge SP Reset AN9 J6, 7-9 8 (7 = loop power) (0-20mA input)
OAQ Outside Air CO
2
Sensor AN10 J6, 10-12 11 (10 = loop power) (0-20mA input)
SPRESET SP Reset milliamps AN10 J6, 10-12 11 (10 = loop power) (0-20mA input)
CEM_10K1/CEM_4201 CEM AN1 10k temp J5,1-2/CEM AN1 4-20 ma J5,1-2 AN1 J5, 1-2 1 (thermistor, ohms)
CEM_10K2/CEM_4202 CEM AN2 10k temp J5,3-4/CEM AN2 4-20 ma J5,3-4 AN2 J5, 3-4 3 (thermistor, ohms)
CEM_10K3/CEM_4203 CEM AN3 10k temp J5,5-6/CEM AN3 4-20 ma J5,5-6 AN3 J5, 5-6 5 (thermistor, ohms)
CEM_10K4/CEM_4204 CEM AN4 10k temp J5,7-8/CEM AN4 4-20 ma J5,7-8 AN4 J5, 7-8 7 (thermistor, ohms)
AN5 J5, 9-10 9 (thermistor, ohms)
AN6 J5, 11-12 11 (thermistor, ohms)
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
12 L2 power supply 208-230/460/575/380/-3-60
13 L3 power supply 208-230/460/575/380/-3-60
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 24 VAC Power
2 Thermostat Y1 24 VAC Input
3 Thermostat Y2 24 VAC Input
4 Thermostat W1 24 VAC Input
5 Thermostat W2 24 VAC Input
6 Thermostat G 24 VAC Input
7 Thermostat C 24 VAC Common
8 Thermostat X (Alarm Contact) 24 VAC Output
TB-5 - FIELD CONNECTIONS (HY84HA101) (in Main Control Box)
TB5
1 VAV Heater Interlock Relay, Ground Dry Contact, Max 1 Amp
2 VAV Heater Interlock Relay, 24 VAC Dry Contact, Max 1 Amp
3 T55/T56 10 K Thermistor Thermistor Input
4 T55/T56 10 K Thermistor Thermistor Input
5 T56 Set Point Adjustment (100 K ohm) Thermistor Input
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 Power
11 Fire Shutdown 24 VAC Input
12 Fire Control* 24 VAC Power
13 Fire Pressurization* 24 VAC Input
14 Fire Evacuation* 24 VAC Input
15 Fire Smoke Purge* 24 VAC Input
16 Not Used —
TB-6 - FIELD CONNECTIONS (HY84HA101) (in Main Control Box)
TB6
1 Remote Occupied/Economizer Enable 24 VAC 24 VAC Power
2 Remote Economizer Contact 24 VAC Input
3 Remote Occupied Contact 24 VAC Input
4 Demand Limit Contacts Common* 24 VAC Power
5 Demand Limit SW1* 24 VAC Input
6 Demand Limit SW2 / Dehumidification Switch* 24 VAC Input
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* 24 VAC Power
14 IAQ Remote Switch* 24 VAC Input
15 Supply Fan Status Switch* 24 VAC Power
16 Supply Fan Status Switch* 24 VAC Input
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