Sequence of Operation
When the building static pressure is 0.015” WC or more above the “BUILDING PRESSURE SETPOINT” the Simplicity Elite control closes the output to the exhaust fan motor. The output is at the “EXH” terminal of the P13 connector.
When the building static pressure is 0.015” WC or more below the “BUILDING PRESSURE SETPOINT” the Simplicity Elite control opens the output to the exhaust fan motor.
The minimum run time is 10 seconds and the minimum off time is 60 seconds.
Modulating Damper with Fixed Speed Exhaust
This exhaust option uses a standard motor without any type of speed control and a modulating damper.
The following System Parameters must be programmed through the Simplicity Elite control:
“POWER EXHAUST INSTALLED” – must be turned on using Parameter 43 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
“BUILDING STATIC PRESSURE SENSOR INSTALLED” – must be turned on using Parameter 85 under the PROGRAM key on the Simplicity Elite control board or under the EQUIPMENT INSTALLATION tab in the Simplicity PC software package.
“BUILDING PRESSURE SETPOINT” must be programmed using Parameter 31 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
“MODULATING POWER EXHAUST INSTALLED” must be turned on using Parameter 44 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
“EXHAUST DAMPER POSITION FOR EXHAUST FAN TO TURN ON” must be programmed using Parameter 46 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
FORM
“EXHAUST DAMPER POSITION FOR EXHAUST FAN TO TURN OFF” must be programmed using Parameter 47 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
Sequence of Operation
When the building static pressure is 0.025” WC or more above the “BUILDING PRESSURE SETPOINT” the Simplicity Elite control sends a 2 to 10 volt DC signal to open the exhaust damper. The output is at the “EXD+” and
When the exhaust damper position is equal to or greater than the “EXHAUST DAMPER POSITION FOR EXHAUST FAN TO TURN ON” the Simplicity Elite control turns on the exhaust fan. The output is at the “EXH” terminal of the P13 connector.
When the building static pressure is 0.025” WC or more below the “BUILDING PRESSURE SETPOINT” the Simplicity Elite control lowers the 2 – 10 volt DC output to the exhaust damper to close the damper.
When the exhaust damper position is equal to or less than the “EXHAUST DAMPER POSITION FOR EXHAUST FAN TO TURN OFF” the Simplicity Elite 5 control turns on the exhaust fan.
The minimum run time is 20 seconds and the minimum off time is 60 seconds.
Modulating Exhaust with a VFD
This exhaust option uses a Variable Frequency Drive (VFD) and a barometric damper.
The following System Parameters must be programmed through the Simplicity Elite control:
“POWER EXHAUST INSTALLED” – must be turned on using Parameter 43 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
JOHNSON CONTROLS | 93 |
