Wall-Mount Unit Preliminary Start Up; Running In Stand Alone (Orphan) Mode - Bard W18AAPA Installation Instructions Manual

WALL-MOUNT UNIT PRELIMINARY START-UP

Running in Stand Alone (Orphan) Mode

With the AC breakers turned on, each MULTI-TEC
wall-mount unit has the capability to run without the
LC6000 controller or th-TUNE single unit controller
attached—this feature is called stand alone or orphan
mode. This keeps the shelter between 60°F and 77°F
(factory default settings) by the use of the factory-
installed return air sensor in the 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
chosen, the wall-mount unit will heat or cool. When set
to OFF using the TEC-EYE, the wall-mount unit will not
heat, cool or ventilate.
See Configuration on page 23 for information on using
the TEC-EYE diagnostic tool.
To turn the unit on or off with TEC-EYE:
1. Connect the TEC-EYE diagnostic tool to the control
board located in the unit.
2. Press MENU key to go to the Main Menu screen.
3. Press UP or DOWN keys and ENTER key to enter
USER password 2000.
4. Press UP or DOWN keys to scroll to On/Off; press
ENTER key.
5. Press UP or DOWN keys to change value from On
to Off or from Off to On.
6. Press ESCAPE key several times to return to Main
Menu screen.
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 the MULTI-TEC wall-mount
unit lose communication with the th-TUNE stand-
alone controller (such as during maintenance), it will
continue to serve the shelter's needs until a repair can
be made.
Manual 2100-678C
Page 20 of 26
NOTICE
It is important to check the software version
during installation to ensure that the latest
version has been installed. Current software
versions, change log and installation
instructions are available on the Bard website at
http://www.bardhvac.com/software-download/