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OVERVIEW |
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Zone temperature control requires the respective zones to be set to "Climate" and uses the iZone sensors to modulate the zone dampers to maintain the zone set point. Critical to the control of the zone temperatures is the supply air sensor (CDTS) which is used to invert the operation of the zone dampers when operating in heating and to avoid hot or cold air being blown into a zone when the the system first starts. The zone temperature control strategies use the following parameters for control:
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Zone Set Point (SP) |
As selected by the user
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Zone Actual Temperature (ACT) |
As measured by the zone sensor. The displayed value takes into account any calibration offsets from the configuration menu
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In Duct Temperature (SA) |
As measured by the CDTS sensor
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Open - Zone damper is open to its maximum position after the MAX balancing % and user MAX Airflow % have been taken into account |
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Close - Zone damper is closed to its minimum position after the MIN balancing % and user MIN Airflow % have been taken into account |
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R/Air - Return air sensor
Master - The customer can select any sensor in the system to control the AC unit
Zones - iZone selects the most appropriate sensor to the AC unit.
RF - Uses a single wireless iZone sensor to control an AC unit which has no zones
How to select the control sensor options?
Control Sensor options | Actual temperature measured from … | Number of temperature sensors in use |
Return Air Sensor | AC unit return air sensor | 0 |
Zones | iZONE wireless/wired temperature sensor per zone | 1 to 14 |
Master | iZONE wall controller | 0 |
RF Sensor | Single iZONE wireless/wired temperature sensor anywhere in home | 1 |
The strategies for each sensor type are detailed below:
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RA - Return Air Sensor |
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