Sequence of Operation
When the outdoor temperature is equal to or less than the “LOW AMBIENT ECONOMIZER SETPOINT” the Simplicity Elite control will set the minimum position of the outdoor damper to the programmed “LOW
AMBIENT ECONOMIZER MINIMUM POSITION” setting.
When the outdoor temperature is 1.0° F or more above the “LOW AMBIENT ECONOMIZER SETPOINT” the Simplicity Control will set the minimum position of the outdoor damper to the programmed “ECONOMIZER MINIMUM POSITION” setting.
EXHAUST FAN OPERATION
The Simplicity Elite control can be configured for the following types of exhaust fan operation:
•On/Off Control Based On Outdoor Damper Posi- tion.
•On/Off Control Based On Building Pressure.
•Modulating Damper with Fixed Speed Ex- haust.
•Modulating Exhaust with a VFD.
On/Off Control Based on Outdoor Damper Posi- tion
This exhaust option uses a standard motor without any type of speed control 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.
“ECONOMIZER DAMPER POSITION FOR EXHAUST FAN TO TURN ON” – must be programmed using Parameter 48 under the PROGRAM key on the Simplicity Elite control board or under the ECONOMIZER/EXHAUST tab in the Simplicity PC software package.
FORM
“ECONOMIZER DAMPER POSITION FOR EXHAUST FAN TO TURN OFF” – must be programmed using Parameter 49 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 output to the economizer damper is equal to or greater then the “ECONOMIZER DAMPER POSITION FOR EXHAUST FAN TO TURN ON” 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 output to the economizer damper is equal to or less then the “ECONOMIZER DAMPER POSITION FOR EXHAUST FAN TO TURN OFF” the Simplicity Elite control open the output to the exhaust fan motor.
The minimum run time is 10 seconds and the minimum off time is 60 seconds.
On/Off Control Based on Building Pressure
This exhaust option uses a standard motor without any type of speed control 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.
“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.
92 | JOHNSON CONTROLS |
