Initialization - Greenheck 474706 Reference Manual

Fan Delay
Time delay between starting
of supply & exhaust fans.
Fan delay: 15s
Wheel Rotation Sensor
Alarm delay: 30s
(input ID3)
Temperature Scale
Select: Fahrenheit
Display Buzzer
Select: Disable
H. Manufacturer
d. Initialization
Factory Settings
Save? No
Restore? No
New Password
Insert new manufacturer
password (PW2): 0000

Initialization

DEFAULT INSTALLATION
Erase user settings and install
global default values: No
®
T
his screen allows adjusTmenT of The Time delay before The exhausT fan
when The supply fan sTarTs
This screen only appears if an energy wheel was provided with the unit.
The delay between the starting of supply and exhaust fans reduces the startup
amp draw of the unit. The exhaust fan engages first, allowing the energy
wheel to see space temperature conditions prior to the supply fan engaging.
This allows the wheel to provide maximum preconditioning of the outdoor air.
This also minimizes the potential of extreme outdoor air temperatures being
supplied to the space, prior to the cooling or heating engaging.
T
his screen allows adjusTmenT of The Time delay for wheel roTaTion alarm
This screen only appears if an energy wheel was provided with the unit.
Similar to the Fan/Airflow Proving Switch alarm, the energy wheel rotation
alarm delay allows time to elapse prior to the controller showing an alarm. The
delay prevents a false alarm from occurring if the sensor does not sense the
wheel rotation for the allotted time.
T
his screen allows The user To adjusT whaT TemperaTure uniTs The
conTroller should display and wheTher The display buzzer should be
enabled or disabled
The temperature unit of measurement can either be Fahrenheit or Celsius.
If using Celsius, the user will need to manually convert the factory default
parameters in the Factory Settings menu.
The display buzzer is only applicable when a remote interface panel is
attached to the controller. If an alarm were to occur, the remote display panel
would begin buzzing loudly (if the buzzer was enabled) and would show the
alarm status.
The Initialization Menu allows the user to save and restore the controllers default
parameters. The controller can be restored with either the Manufacturer's default
parameters from shipment, or an unconfigured factory default.
T
his screen allows The user To
parameTers sTored in memory
The Factory Settings include the Factory default parameters and the unit setup
code. If the user would like to restore to these parameters, move the cursor to
the Restore position and change to YES.
T
his screen allows The user To change The
T
his screen allows The user To resTore back To The original
defaulT parameTers
Restoring to the original default parameters will result in a non-customized
controller. The user should not restore to these settings unless instructed by
the factory.
.
.
save resTore
and
.
.
DDC Controller for Tempered Air Products
The facTory defaulT
m p
anufacTurer assword
f
acTory
.
(pw2)
25