15
MHGRV-X Field Technical Guide
LCD SCREENS
Setpoint and Force Valves Screens
Setpoint Screens
Refer to the following map when navigating through the Setpoint
Screens. From the SETPOINT Screen, press
<ENTER>
to scroll
through the screens and change setpoints. Use the
<UP>
and
<DOWN>
arrow keys to change your selections. Then press
<ENTER>
to save
the new setpoint.
WARNING:
When the MHGRV-X is operating in
Communications Mode (connected to the
AAON unit controller), these Setpoint
Screens will not appear on the LCD display
because they are controlled by the AAON
unit controller. To access these Setpoints,
temporarily disconnect the MHGRV-X from
the AAON unit controller.
Minimum
Default
Maximum
40°F
5°C
70°F
21°C
150°F
65°C
SETPOINT
SAT SP
40-150
º
F
REHEAT SUPPLY AIR TEMPERATURE SETPOINT
This is the target temperature while reheat is enabled. If you are
using the reset signal, this is the setpoint it will calculate to at zero
volts. Will display only in Stand-Alone Mode. The SAT Setpoint
is set by the LCD Display in Stand-Alone Mode and is set by the
AAON unit controller in communicating mode.
RESET SP
40-150°F
RESET REHEAT SUPPLY AIR SETPOINT
This is maximum temperature at which the Supply Air Temperature
will reset to. Will display only in Stand-Alone Mode.
The Reset SAT Setpoint is set by the LCD Display in Stand-Alone
Mode and is set by the AAON unit controller in communicating
mode.
Force Valves Screens
Refer to the following map when navigating through the Force
Screens. From the FORCE VALVES Screen, press
<ENTER>
.
At the FORCE MODE ON/OFF screen, press the
<UP>
arrow
key to turn the FORCE MODE on and press the
<DOWN>
arrow
key to turn the FORCE MODE off.
NOTE:
When you turn the Force Mode back off or after one
hour has elapsed, the valves will reinitialize to zero.
Minimum
Default
Maximum
40°F
5°C
70°F
21°C
150°F
65°C
FORCE
VALVES
FORCE
MODE ON/OFF
Press the
<UP>
button to turn the Force Mode on. Press the
<DOWN>
button to turn the Force Mode off.
FRC VALV
X%
FORCE VALVE PERCENTAGE
This screen only appears when Force Mode is on.
Press the
<UP>
button to increase the percentage. Press the
<DOWN>
button to decrease the percentage.
FRC EXP
X%
FORCE EXPANSION VALVE PERCENTAGE
This screen only appears when Force Mode is on and Expansion
Valves are Enabled.
Press the
<UP>
button to increase the percentage. Press the
<DOWN>
button to decrease the percentage.
FORCE
TIMEOUT
FORCE MODE TIME OUT
This screen will appear when the Force Mode times out after one
hour.
