Sequence of Operation
FORM
The Simplicity Elite control will keep the compressors off line for 5 minutes. After 5 minutes, the Simplicity Elite control will turn the compressor back on with a 30 second delay between compressors and resume normal operation.
After 5 minutes Simplicity Elite control will reset this communicated input back to “OFF” regardless of the communicated status. To initiate another cycle the communicated value would have to switch to the low state “OFF” and then back to the high state “ON”.
LOADSHED
This feature can be used to temporally reduce the electrical consumption of the unit by turning off all the active compressors. The feature is only available as a communicated input to the Simplicity Elite control. The BACnet name is SET_LOADSHED and the BACnet instance number is BV13. For Modbus use address (HEX) 41L, address (DEC) 65L Bit 1.
Sequence of Operation
If compressors are energized when the Simplicity Elite control receives this command the Simplicity Elite control will turn off all compressor immediately, even if the minimum run time requirement has not been met for the compressor.
The Simplicity Elite control will keep the compressors off line for 5 minutes. After 5 minutes, the Simplicity Elite control will turn the compressor back on and resume normal information. The same compressors that were running before the Loadshed input was received will be turned back on with a 30 second delay between compressors.
After 5 minutes, Simplicity Elite control will reset this communicated input back to “OFF” regardless of the communicated status. To initiate another cycle the communicated value would have to switch to the low state “OFF” and then back to the high state “ON”.
DIRTY FILTER
A adjustable differential pressure switch can be a added to the unit to monitor the filters and initiate an alarm when the pressure drop across the filters become greater than the setting of the switch. When the switch closes, the alarm will be initiated.
In order to use this feature a pressure switch must be installed and the feature enabled. To enable the dirty filter feature.
“DIRTY FILTER SWITCH INSTALLED” – must be enabled using Parameter 51 under the PROGRAM key of the Simplicity Elite control board or under the EQUIPMENT INSTALLATION tab in the Simplicity PC software package.
Sequence of Operation
The control monitors the voltage input at terminals “FILT” at the P22 connector on the Simplicity Elite control board. If the status goes high, 24 volt input, for ten minutes the Simplicity Elite control will initiate an Alarm 23 “Dirty Filter Switch Has Tripped” but the operation of the unit will continue.
As soon as the
METRIC OPERATION
When this feature is turned on all the temperature data will be converted to metric.
The following must be enabled for Metric Operation:
“METRIC OPERATION”- must be enabled using Parameter 57 under the PROGRAM key on the Simplicity Elite control board.
INTELLI-START
This feature can be used to energize the heating or cooling function of the unit to bring the temperature of the space up to the “CV OCCUPIED COOLING” and “CV OCCUPIED HEATING” set points prior to the start of the occupied period.
The following parameter must be programmed in order to use this feature:
The following criteria must be met for Morning Warm- up operation:
86 | JOHNSON CONTROLS |
