Greenheck Microprocessor Controller (475595 IOM) TAP v2.10 April 2014 (RVE, ERCH-01, ERT-01) - Manual (Page 15)

B. Setpoint
The Setpoint menu allows the user to view and adjust temperature related
parameters.
T
HIS SCREEN DISPLAYS THE SUPPLY AIR TEMPERATURE SET POINT SCREEN
PARAMETERS
.
When operating, the unit will control the heating and cooling to maintain the active
supply temperature set point. The active set point will be determined by the set
point source selection.
Possible Set Point Sources:
Local – The supply set point will be constant set from screen. (exp. 72°F).
BMS – The BMS can directly control the supply air temperature set point (requires
BMS communication option).
OA-Reset -The controller monitors the outdoor air temperature and adjusts the
desired supply temperature set point accordingly. For example, when the outdoor
air is below 55°F, the controller will change the supply set point to 70°F. If the
outdoor air is above 65°F, the controller will change the supply set point to 55°F.
If the outdoor air temperature is between 55°F and 65°F, the supply set point
changes according to the outdoor air reset function. A visual representation of the
outdoor air reset function is shown below.
Room-Reset – The controller will reset the supply air temperature set point to
maintain the room temperature set point (requires room temp sensor). See the
Room Temp Set Point screen in this menu for more information.
T
HIS SCREEN DISPLAYS THE ROOM TEMP SET POINT
.
This screen only appears if Room Reset is selected as the supply set point source,
and a room temperature sensor is wired into the controller.
The unit will reset the supply air temperature set point to maintain the room temp
set point.
Possible Set Point Sources:
Local – The room set point will be constant set from screen (exp. 72°F).
BMS – The BMS can directly control the room temperature set point (requires
BMS communication option).
Supply Temp Set Point
Active: 72.0°F
Source: BMS
72.0°F
Max: 90.0°F
Min: 55.0°F
Room Temp Set Point
Active: 72.0°F
Source: Local 72.0°F
Outdoor Air Reset Function
45°
50°
55°
60°
65°
50° 55° 60° 65° 70°
Outside Air Temperature (°F)
Supply Air Set Point
(°
F
)
70°
75°
Supply Temp Set Point
Active: 70.0°F
Source: Local
70.0°F
Max: 90.0°F
Min: 55.0°F
Supply Temp Set Point
Active: 55.0°F
Source: OA Reset
Outside Supply
55.0°F
70.0°F
65.0°F 55.0°F
Supply Temp Set Point
Active: 72.0°F
Source: Room Reset
Max: 90.0°F
Min: 55.0°F
Room Temp Set Point
Active: 72.0°F
Source: BMS 72.0°F
15 DDC Controller for Tempered Air Products
®