MENU M – SET ZONE CONTROL
Notice: The Zone Control menu only appears on Unit 1 (dap4 set at address
1) when the Zone Control feature is enabled.
Zone Control
Zone
ID:1
Units: 5 Online:
5
Finish Run -> Stdby:
Yes
Pri/Sec
Schedules
Number Units On Pri:
2
Number Units On Sec:
2
Fan Mode:
Disabled
Zone ID: Within the same area, there may be more than one zone. This
setting is sent out to all units to identify which zone the unit belongs to.
Units: Set this to the total number of units that are connected to the
network.
Online: The Unit 1 will automatically detect how many other units are
connected to the Zone Control network. This number should match the
number of units that you set above. An “off line’ alarm will occur if any
unit is not detected.
Finish Run->Stdby: When set to “Yes” any assisting unit must finish
performing any temperature or humidity control operation before it can
return to the standby mode.
Primary or Secondary Schedule: Selecting a secondary schedule offers
even greater flexibility so that units can have different modes based on a
time schedule.
Number Units On: This setting determines how many units will constantly
be on, regardless of demand. The remainder of the units will be in standby
(unless set to be in off mode). The Zone Control can be set to turn
additional units on when demand increases.
Fan Modes:
Disabled (default) - The Zone Control does not control the fan of the units.
Each unit will use its own fan control method.
Fan Mode: C. Airflow – The Zone Control will modulate the fan speed of
all running units in the zone to maintain the zone airflow set point. This
selection requires an optional airflow measuring sensor to be installed.
Unity Cl: Like the C. Airflow listed above, but the air flow setpoint is
determined by a value communicated by an external control system.
Max Rack - The Zone Control will modulate the fan speed of all running
units in the zone to the highest rack temperature. This selection requires
optional rack temperature sensors.
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