Trane VAV VV550 LonTalk, Руководство по установке и эксплуатации

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VAV-SVP01A-EN 57
VAV VV550 Controller Device Home Tabs: Instructions
Unit Tab
In Rover, the Unit Tab can be changed by selecting the Configure button. Following are
descriptions of each line on the Unit tab.
Unit Configuration
This allows for selection between three operational programs. The three programs are Space
Temperature, Ventilation Flow, and Flow Tracking
Note: See Operation chapter fore details on operational programs.
Default Primary Air Temperature
The selections are cooling or heating. The controller default operation (auto) can place the unit in
heating or cooling mode. When the controller automatically determines the heating or cooling
mode, the unit switches to the desired mode based on the primary air temperature.
Note: It can also be done with a communicated request.
Primary Air Setup
Auto Changeover Setpoint: The auto change over set point allows for switching from heating
to cooling operation with the vav) If primary air temperature greater than the configured auto
changeover setpoint, then primary air temperature is. (Primary air is hot enough for heating and
reheat can be used.) If primary air temperature < configured auto changeover setpoint - 10°F
(5.56°C), then primary air temperature is cold. (Primary air is cold enough for cooling and reheat
can be used.) No change in hysteresis region.
Reheat Setup
Reheat Enable Setpoint: When the primary air temperature is greater than the configured reheat
enable setpoint, reheat is turned OFF until the primary air temperature drops 5°F (2.78°C) below
Figure 43. Unit tab