Control System
This Bard control system can be composed of a variety of non-PLC operated Bard wall-mount air conditioners or
heat pump model offerings. The MC5300 controller can be matched with up to a maximum of three wall-mount air
conditioners or heat pumps. The MC5600 controller can be matched with up to a maximum of six wall-mount air
conditioners or heat pumps.
Go to www.bardhvac.com for more information on the control system including MC5300/5600 Specifications Sheet
S3612.
Manual 2100-746
Page
5 of 55
MC5000 Series Controller
MC5000 Series Controller and Accessories
All MC5000 Series controllers have Ethernet connectivity with local monitoring and
diagnostics through the use of the color touch screen. If using alarm boards, they will
provide NO/NC contacts as an option. The alarm boards can also be used to connect
to a building Network Operations Center (NOC) system using Normally Open and
Normally Closed dry contacts.
One onboard temperature/humidity sensor (P/N 8408-059) is included with the
controller.
This sensor, or optional remote temperature/humidity sensor w/35' cable
(see below), must be used for proper operation.
The power (24VAC) for the control system comes from the units connected to each
system module of the I/O boards. The display is powered through the connection to
the main I/O board. Therefore, a separate power supply is not required.
NOTE:
Bard recommends installation of an optional remote temperature-only sensor
(Bard P/N 8408-095) for redundancy. See
Temperature Sensors
section
on page 18 for further information.
Temperature-Only Sensor
Bard P/N 8301-095
Optional Sensors
Up to two additional remote temperature-only sensors (Bard P/N 8408-095) can be
added and configured for either indoor or outdoor use. The additional sensors can be
used as one indoor and one outdoor sensor or both additional indoor sensors. Remote 1
is for indoor use only. Remote 2 can be configured for either indoor or outdoor use.
Install the temperature sensor(s) in a location least likely to be affected by open doors,
rack-mounted fans, radiant heat sources, etc. Locating the sensor between two return
grilles is often the best location, but every installation is unique. Location height should
be approximately 48" to 60" above the floor. These sensors can be secured with zip ties,
etc.
Remote temperature sensors come with 35' cable.
An optional remote temperature/humidity sensor with a 35' cable (Bard P/N 8408-
061) can be purchased to replace the factory installed standard (local, not expandable)
temperature/humidity sensor with 11" cable.
Only one temperature/humidity sensor can
be connected to the controller at any given time.
The optional temperature/humidity sensor should be remotely mounted in a location
that is least likely to be affected by open doors, rack-mounted fans, radiant heat sourc-
es, etc. It is recommended that the sensor lead wires be installed in conduit so that the
wires are protected.
Indoor Air Temperature/
Humidity Sensor
Bard P/N 8408-061
