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5.3
SEQUENCE OF OPERATION
Once the heating or cooling mode is established and a call for that mode has been
received by the panel, the control panel will energize the proper damper relays to allow the
conditioned air into the calling zone(s). The panel will close any zone dampers not
matching the established mode of operation. Fan call inputs will be ignored by the panel.
The control panel will keep the equipment operating in the established mode for a minimum
on time of 4 minutes and until all zones calling for the established mode of operation are
satisfied. Once all zones are satisfied, the control panel will de-energize the equipment and
will initiate a minimum off timer of 4 minutes to prevent equipment short cycling. The
control panel will continue to operate the fan for a period of 45 seconds to purge
conditioned air into the last zone(s) calling. After the purge cycle, the panel will perform
the following: 1) if no zone thermostats are calling for constant fan, all zone dampers will
be opened and the fan relay de-energized to allow for any hard wired low speed fan
distribution of air into all zones; 2) if any zone is calling for constant fan, the control panel
will keep the fan relay energized and open all zone dampers.

Zone Control System

Wiring

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Our dampers are two wire dampers and should be connected to PC and X (Common).

Fan call inputs will be ignored by the panelFan call inputs will be ignored by the panel

LED Status Indication

Thermostat

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