Table of Contents
Advertisement
FCMC OPERATION
The Fresh Command Multifamily Control (FCMC) automatically responds to environmental conditions to support
indoor comfort and conserve energy while supplying fresh air ventilation. Based on AHU operation and measured
air quality, the device will automatically adjust between free running and synchronized modes to prevent undesired
temperature and humidity.
•
Free running operation (Spring/Fall) - 30-minute fresh air cycle period
•
Synchronized operation (Summer, Winter) – Device synchronized with AHU operation
VENTILATION SEQUENCE
1.
The ventilation sequence starts with controlling the central fan of the air handler unit (AHU).
2.
The FCMC measures the indoor temperature and relative humidity before any ventilation activity begins.
3.
If the equipment is active (heating, cooling, or constant fan), the starting sequence will be bypassed as
the measured air fl owing into the mixing plenum will be the room air.
4.
If the equipment is inactive and the FCMC starts a ventilation function, it will operate in free-running
operation as this does not require synchronization of FAV and AHU.
The table below is a simplifi ed FAV time based on RH through the three seasons. The actual operation takes
more than RH into account.
780110400 | RevA | 07/23
Advertisement
Table of Contents
Need help?
Do you have a question about the FCMC and is the answer not in the manual?