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Manual 2100-571A
Page 4 of 31
SHIPPING DAMAGE
Upon receipt of equipment, the carton should be
checked for external signs of shipping damage. If
damage is found, the receiving party must contact
the last carrier immediately, preferably in writing,
requesting inspection by the carrier’s agent.
GENERAL
These instructions explain the operation, installation
and troubleshooting of the MV4000 Series controller.
All internal wiring is complete. Only attach low
voltage eld wiring to designated terminal strips.
The MV4000 is for use with units with or without
economizers, can be congured for use with heat
pumps, and has a dehumidication control feature if an
optional humidity controller is connected.
Each unit should be sized to handle the total load of the
structure if 100% redundancy is required.
The MV4000 controller is suitable for both 50 and 60
HZ operation, and is fully congurable such that it can
be used in virtually any installation. See Controller
Programmable Features and Default Settings.
THEORY OF OPERATION
The controller is used to control two wall mount air
conditioners from one control system. It provides
total redundancy for the structure and equal wear on
both units. It can be used with units with or without
economizers and it is recommended that both units be
equipped alike.
The MV4000 controller can be congured for
alternative (lead/lag/lead/lag) sequence, which is default
setting. It can be changed to non-alternating (lead/lead/
lag/lag) sequence as required for special applications or
user preference.
The MV4000 is equipped with the B alarm board.
Form C dry contact alarm relays are used, offering
both NO and NC switching to meet the user’s specic
alarm protocol, providing complete exibility to meet
any user's requirements. All alarm actuations are
individually indicated on the controller front panel.
There is an Ethernet based remote communication
option that can be either factory or eld installed. See
section on Communication Module.
CONTROLLER CERTIFICATIONS
The MV4000 main controller board, alarm board,
optional communication module, and remote sensors
have undergone extensive testing for immunity
and emissions. This system is FCC-compliant, in
accordance with CE requirements, and meets the
following standards:
MV4000 Series
Master Controller
This device complies with FCC Rule Part 15, Subpart
B, Class A. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference
2. This device must accept any interference
received, including that which may cause
undesired operation.
This device complies with CE Standards EN55011/
EN50081 and EN55024 for ISM Equipment, Class A.
This ISM device also complies with Canadian ICES – 001.
Bard Manufacturing Company, Inc.
Bryan, OH 43506
** IMPORTANT **
The equipment covered in this manual is to be installed by
trained, experienced service and installation technicians.
Please read entire manual before proceeding.