Prozone ProR212J Installation Manual Download Page 11

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Staging is controlled by the number of zones calling for heating or
cooling and by a timer that monitors the amount of time a call has
been active. Each stage can be set to activate based on the total
of the weighted zones calling or set to only be activated by the
timer.

Title24 now requires delaying auxiliary electric strip heating in a
heat pump so it does not activate on a recovery from a setback
temperature. The stage used for auxiliary heat can be set to
activate only by the timer.

The non-calling zone dampers can be opened just enough to
keep the airflow in the calling zones from being too high or noisy.
The PDMi3 can be used set the bypass position for each zone in
heating and cooling during installation.

When non-calling zone dampers are used for bypass, the amount
of bypass can be set for each zone being used in heating and
cooling.

Although both the calling and non-calling zones are receiving
conditioned airflow, the calling zone is being conditioned typically
3-4 times faster than the non-calling zones.

Increase the bypass positions.

Decrease the bypass positions.

Staging is controlled by the number of zones calling for
heating or cooling.

Staging Heating and Cooling Calls

Bypass Using the Non-Calling Zone Dampers

Selecting the Bypass Option

Staging Based on Zone Calls

To Reduce the Airflow into the Calling Zones

To Reduce the Airflow into the Non-Calling Zones

Press Yes to change the staging of
heating and cooling calls or press No to
continue to next menu selection.

Press Yes to change the Bypass options
or press No to continue to next menu
selection.

Press Yes if bypass is controlled by a
bypass duct and barometric damper or
using the Close stop position on the
actuators. Or press No to display other
bypass options.

Press Yes if bypass is achieved using the
non-calling zone dampers. Or press No
to return to the first option.

Press Up or Down to adjust the bypass
position of the damper when it is being
used for bypass. Press Next to set the
bypass position of the next damper.

Press Up or Down to adjust the bypass
position of the damper when it is being
used for bypass. Press Next to display
the next menu selection.

Press Yes to select staging based on the
number of zones calling or press No to
display other staging options.

Press Yes to select staging based on
the number of zones calling.

Press Up or Down to set the
weighted zones required to activate a
Stage1 call. In installations with three
or more zones and one small zone,
the limit can be set above the small
zone’s size to prevent it, alone, from
activating a call and have excessive
bypass. Press NEXT to continue.

Press Up or Down to set the
weighted zones required to activate a
Stage2 call. Press NEXT to continue.

Press Up or Down to set the
weighted zones required to activate a
Stage3 call. Holding Up, the limit will
increase to the maximum value (3.0
for a 3-zone panel) and then display
“Tmr” to indicate this staging is
controlled by the staging timer and
not the weighted zones calling.
Press NEXT to continue to the next
menu.

Press Yes to select timed upstaging or
press No to display other staging
options.

Press Yes to select limiting upstaging
based on outdoor temperature or press
No to display the first staging option.

Change Staging
Y/N

Change Bypass
Options Y/N

Bypass Ext Baro
Y/N

Bypass ZoneDmprs
Y/N

Zone1 Htg 50%
BP Pos U/D/NEXT

Zone1 Clg 50%
BP Pos U/D/NEXT

Zone2 Htg 50%
BP Pos U/D/NEXT

Zone2 Clg 50%
BP Pos U/D/NEXT

Zone3 Htg 50%
BP Pos U/D/NEXT

Zone3 Clg 50%
BP Pos U/D/NEXT