120
JOHNSON CONTROLS
FORM 145.05-NOM1 708)
TABLE 27 – CONSTANT VOLUME / VARIABLE AIR VOLUME MAIN CONTROL BOARD *
BOARD
CONNECTOR
POINT
I/O TYPE INPUT DEVICE INPUT
IN-1 ANALOG INPUT SUPPLY AIR TEMP THERMISTOR
IN-2 ANALOG INPUT MIXED AIR TEMP THERMISTOR
IN-3 ANALOG INPUT DUCT STATIC PRESSURE 1 4 – 20 MA
IN-4 ANALOG INPUT DUCT STATIC PRESSURE 2 4 – 20 MA
IN-5 ANALOG INPUT VFD SPEED (NOT USED) 4 – 20 MA
IN-6 NOT USED
IN-7 BINARY INPUT AIR PROVING SWITCH DRY CONTACT 5 VDC VOLTAGE
IN-8 BINARY INPUT DUCT HIGH STATIC DRY CONTACT 5 VDC VOLTAGE
IN-9 ANALOG INPUT RETURN AIR TEMPERATURE THERMISTOR
1N-10 ANALOG INPUT OUTSIDE AIR TEMPERATURE THERMISTOR
AO-1 ANALOG OUTPUT WATER SIDE ECONOMIZER OUTPUT 2 – 10 VDC
AO-2 ANALOG OUTPUT AIR SIDE ECONOMIZER OUTPUT 2 – 10 VDC
AO-3 ANALOG OUTPUT SUPPLY FAN VFD (VAV UNITS ONLY) 0– 10 VDC
AO-4 ANALOG OUTPUT CONDENSER WATER VALVE / CONDENSER BYPASS VALVE 2 – 10 VDC
DO-1 BINARY OUTPUT ALARM OUTPUT DRY CONTACT
DO-2 BINARY OUTPUT VAV FAN OUTPUT DRY CONTACT
DO-3 BINARY OUTPUT CV FAN OUTPUT / SUPPLY FAN BYPASS DRY CONTACT
DO-4 BINARY OUTPUT VAV BOX COMMAND DRY CONTACT
DO-5 BINARY OUTPUT FAN START DRY CONTACT
DO-6 BINARY INPUT PUMP START DRY CONTACT
* Check the wiring diagram in the unit for the exact location of the input and outputs as they may change based
on the configuration of the unit.
Service
To Next Page
Loading...
Need help?
General
