Greenheck Microprocessor Controller (475595 IOM) TAP v2.10 April 2014 (RVE, ERCH-01, ERT-01) - Manual (Page 20)

T
HIS SCREEN DISPLAYS THE DUCT PRESSURE SET POINT
.
This screen only appears if equipped with a duct pressure sensor.
The unit will modulate the supply fan to maintain the local duct pressure set point.
Set point source must be changed to BMS to allow BMS control.
Duct Pressure SetPt
Active: 0.25” wc
Source: Local 0.25” wc
Duct Ps: 0.18” wc
T HIS SCREEN DISPLAYS THE CO2 SET POINT .
This screen only appears if equipped with a CO2 sensor.
Depending on unit configuration, the unit will either modulate the supply fan or
outdoor air damper to maintain the CO2 set point.
Set point source must be changed to BMS to allow BMS control.
CO2 Set Point
Active: 1000 PPM
Source: Local 1000 PPM
CO2 Level: 66 PPM
T
HIS SCREEN DISPLAYS THE SINGLE ZONE FANS SPEED PARAMETERS
.
This screen only appears if the supply fan VFD control is configured as Single
Zone VAV. A room temperature sensor is required.
When the unit is configured for Single Zone VAV, the heating, cooling and
economizer are controlled to maintain the active supply air temperature set point,
which is reset based on room temperature reset. The supply fan is modulated in
addition to the supply air temperature to satisfy the room temperature set point.
The minimum and maximum supply fan speed limits can be set during space
cooling and heating.
Space Cooling: When the room requires cooling (the room is warmer than room
temperature set point), the supply air temperature set point will reset as low as the
minimum supply temperature set point (see Supply Temp Set Point screen) to try
to cool the space. If further cooling is required, after the Cooling Fan Delay, the
supply fan will increase in speed to deliver more cooling to the space.
Space Heating: When the room requires heating (the room is cooler than the room
temperature set point), the supply air temperature set point will reset as high as
the maximum supply temperature set point (see Supply Temp Set Point screen)
and the supply fan will increase in speed to deliver more heating to the space.
Single Zone VAV Setup
Supply Fan Speeds
Cooling Heating
Min: 0% 0%
Max: 100% 100%
Cooling Fan Delay: 180s
T
HIS SCREEN DISPLAYS THE BUILDING PRESSURE SET POINT
.
This screen only appears if equipped with a building pressure sensor.
Depending on unit configuration, the unit will either modulate the exhaust or
supply fan to maintain the local building pressure set point.
Set point source must be changed to BMS to allow BMS control.
Building Press SetPt
Active: +0.010” wc
Source: Local +0.010” wc
Building Ps: +0.010” wc
20 DDC Controller for Tempered Air Products
®