Greenheck Microprocessor Controller v3.0 (469690) - Manual (Page 13)

13
B5 Dehumidify:ON/OFF
Input Status:Open
T
HIS SCREEN DISPLAYS THE STATUS OF THE DEHUMIDIFICATION MODE
.
This screen only appears if there is a humidistat wired to terminals B5 and BC5 on
the controller.
When the Input Status is Open, there is no call for dehumidification. When the Input
Status is Closed, the cold-coil set point is reset for further dehumidification.
ANALOG OUTPUTS - PARAMETERS
The Analog Output screens allow the user to adjust the analog outputs for the energy recovery wheel, heating, cooling, and
hot gas reheat operation. The factory defaults are provided in the screens shown and are designed to operate with any
factory supplied components. Chilled water valves, hot water valves, DX distributors, or HGRH valves provided by others
may require adjustments to the following screens to properly operate the components.
Analog output Y1
Energy Recovery Wheel
Output 0% --> 100%
SIGNAL 00.0V 10.0V
T
HIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE
A
NALOG OUTPUT
%
AND THE VOLTAGE SIGNAL FOR THE ENERGY RECOVERY WHEEL
.
***DO NOT ADJUST THIS SETTING***
This screen may relate to on/off or modulating control depending upon what
accessories were ordered with the unit. The energy recovery wheel is factory-installed
and programmed.
Analog output Y2
Heater
Output 0% --> 100%
SIGNAL 00.0V 10.0V
T
HIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE
A
NALOG OUTPUT
%
AND THE VOLTAGE SIGNAL FOR THE HEATING
(
IE
. 60% = 6 VDC).
This screen only appears if Heating was provided with the unit.
The Output and SIGNAL will provide the appropriate control of a hot water coil, electric
heater, or indirect gas furnace. User can change the SIGNAL range if required. Factory
defaults are 0-10 VDC.
NOTE: This is where the user would adjust for a Heating Control Valve that is
2-10 VDC rather than 0-10 VDC.
Analog output Y3
Cooling
Output 0% --> 100%
SIGNAL 00.0V 10.0V
T HIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE A NALOG OUTPUT %
AND THE VOLTAGE SIGNAL FOR THE HEATING
(
IE
. 60% = 6 VDC).
This screen only appears if Chilled Water was provided with the unit.
The Output and SIGNAL will provide the appropriate control of a chilled water coil.
User can change the SIGNAL range if required. Factory defaults are 0-10 VDC.
NOTE: This is where the user would adjust for a Cooling Control Valve that is
2-10 VDC rather than 0-10 VDC.
Analog output Y4
Hot Gas Reheat
Output 0% --> 100%
SIGNAL 00.0V 10.0V
T
HIS SCREEN DISPLAYS THE CORRELATION BETWEEN THE
A
NALOG OUTPUT
%
AND THE VOLTAGE SIGNAL FOR THE HOT GAS REHEAT ( IE . 60% = 6 VDC).
This screen only appears if HGRH was provided with the unit.
The Output and SIGNAL will provide the appropriate control of a on/off or modulating
hot gas reheat coil. User can change the SIGNAL range if required. Factory defaults are
0-10 VDC.
DIGITAL INPUTS - PARAMETERS
Digital Input (ID1)
Supply proving switch
Alarm:
Open
Status:Closed
T HIS SCREEN DISPLAYS THE ALARM STATUS MODE OF THE SUPPLY PROVING
SWITCH .
When the Supply proving switch alarm is triggered, the fan is not seeing airflow and the
unit will shutdown and alarm. The Alarm parameter allows the user to select Open or
Closed for the contact position that will trigger the alarm. Status displays the real time
status (Open/Closed) of the digital input.
NOTE:
The controller is only monitoring the contact position -- Not the actual
operation of the fan.
I/O SETUP MENU - continued
WARNING!
The following screens show the factory defaults for each parameter. Do NOT change parameters unless you are
absolutely certain the parameter needs to be modified. Unit will not function properly and damage may occur
to the unit if the parameters do not match the contact requirements of the components.