Preliminary Start Up; Running In Stand Alone (Orphan) Mode - Bard FUSION-TEC HR58APA Installation Support Materials

PRELIMINARY START UP

Running in Stand Alone (Orphan) Mode

With the AC breakers turned on, each FUSION-TEC
wall-mount unit has the capability to run without the
LV1000 controller attached—this feature is called
stand alone or orphan mode. This keeps the shelter
between 60°F and 79°F (factory default settings) by
the use of the factory-installed return air sensor in
each wall-mount unit. In stand-alone mode, the wall
unit uses a continuous blower setting to circulate room
air into the return air inlet and uses the return air
temperature sensor to control room temperature.
The wall-mount unit can be turned on and off with
the TEC-EYE hand-held diagnostic tool. When ON is
TM
chosen, the system will heat or cool.
NOTE: The blower will continue to run when OFF is
chosen. Refer to page 28 to change ON/OFF
Control.
The unit will not go into stand alone mode until after
an initial call for cooling. (?)
To change default setpoints, refer to Setpoints on page
21.
During installation, the ability to run in stand alone
mode allows deactivation of one of the existing, older
wall-mount units, while keeping the shelter cool
with the other unit still operating. Once the first of
the Bard FUSION-TEC wall-mount units is installed,
orphan mode can be enabled early in the installation—
keeping the climate inside the shelter stable and
the installers comfortable while the remainder of the
older equipment is removed and the remaining Bard
FUSION-TEC wall-mount units and LV1000 controller
are installed.
To ensure units will go into stand alone mode,
disconnect the plug marked R-T-/R+T+/GND on the
control board located in the wall-mount unit. Be sure
to reconnect the plug before operating the wall-mount
unit as part of the Bard Free Cooling Unit System.
Additionally, should any or all of the FUSION-TEC
wall-mount units lose communication with the LV1000
controller (such as during maintenance), they will
continue to serve the shelter's needs until a repair can
be made.
See the LV1000 controller manual for complete
information on connecting the communication wiring
from the controller to the wall-mount units and
operating the Bard Free Cooling Unit System.
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