List of Necessary Materials/Tools ........................................................................................................................ 6
System Start-Up ............................................................................................................................................. 20
SECTION 2: Service Instructions ............................................................................................................... 25
Control Operation ............................................................................................................................................ 32
Temperature Control ................................................................................................................................. 33
Humidity Control ...................................................................................................................................... 34
Fan Control .............................................................................................................................................. 35
This Bard Free Cooling Unit system is composed of FUSION-TEC wall-mounted air conditioners matched with an
LV1000 first on/next on controller. The wall mounts are specifically engineered for telecom/motor control center
rooms.
NOTE: The LV1000 controller and FUSION-TEC wall-mount units are designed specifically to work together. The
LV1000 controller cannot run other Bard models or other brands of systems, nor can other controllers run
the FUSION-TEC wall-mount units. They are a complete system, and must be used together.
Controller
LV1000 controller and accessories included shown below.
* One remote temperature/humidity sensor and 35' of shielded cable are included with the LV1000 controller.
Up to two additional remote temperature/humidity sensors can be purchased and installed. Temperature-only
sensors (Bard P/N 8301-058) may be used instead of the additional temperature/humidity sensors, but will
also need to be purchased separately.
The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.
These instructions should be carefully read before
beginning the installation. Note particularly any tags
and/or labels attached to the equipment.
While these instructions are intended as a general
recommended guide, they do not supersede any national
and/or local codes in any way. Authorities having
jurisdiction should be consulted before the installation is
made. See Additional Publications for information
on codes and standards.
Shipping Damage
Upon receipt of equipment, the cartons 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.
Additional Publications
These publications can help when installing the
furnace. They can usually be found at the local library
or purchased directly from the publisher. Be sure to
consult the current edition of each standard.
National Electrical Code ...................... ANSI/NFPA 70
Standard for the Installation of Air Conditioning
and Ventilating Systems ...................ANSI/NFPA 90A
Standard for Warm Air Heating
and Air Conditioning Systems ............ANSI/NFPA 90B
Communication
EMI Filters
Bard P/N 8301-055
Page 3 of 36
Load Calculation for Residential Winter
and Summer Air Conditioning ............. ACCA Manual J
Duct Design for Residential Winter and Summer
Air Conditioning and Equipment Selection
....................................................... ACCA Manual D
For more information, contact these publishers:
Air Conditioning Contractors of America (ACCA)
1712 New Hampshire Ave. N.W.
Washington, DC 20009
Telephone: (202) 483-9370 Fax: (202) 234-4721
American National Standards Institute (ANSI)
11 West Street, 13th Floor
New York, NY 10036
Telephone: (212) 642-4900 Fax: (212) 302-1286
American Society of Heating, Refrigeration and Air
Conditioning Engineers, Inc. (ASHRAE)
Batterymarch Park
P. O. Box 9101
Quincy, MA 02269-9901
Telephone: (800) 344-3555 Fax: (617) 984-7057
ANSI Z535.5 Definitions:
DANGER: Indicate[s] a hazardous situation which, if
not avoided, will result in death or serious injury. The
signal word “DANGER” is to be limited to the most
extreme situations. DANGER [signs] should not be used
for property damage hazards unless personal injury risk
appropriate to these levels is also involved.
WARNING: Indicate[s] a hazardous situation which,
if not avoided, could result in death or serious injury.
WARNING [signs] should not be used for property
damage hazards unless personal injury risk appropriate
to this level is also involved.
CAUTION: Indicate[s] a hazardous situation which, if
not avoided, could result in minor or moderate injury.
CAUTION [signs] without a safety alert symbol may be
used to alert against unsafe practices that can result in
property damage only.
NOTICE: [this header is] preferred to address practices
not related to personal injury. The safety alert symbol
shall not be used with this signal word. As an
alternative to “NOTICE” the word “CAUTION” without
the safety alert symbol may be used to indicate a
message not related to personal injury.
Page 4 of 36
SECTION 1:
INSTALLATION
INSTRUCTIONS
Page 5 of 36
LIST OF NECESSARY MATERIALS/TOOLS
Additional hardware and miscellaneous supplies are needed for installation. These items are field supplied and must
be sourced before installation. This list also includes tools needed for installation.
List of Materials/Tools
• Personal protective equipment/safety devices
• Miscellaneous hand and power tools and jobsite or
shop materials
• Electrical supplies:
- Circuit breaker for the shelter AC breaker
box (see unit electrical specifications for
requirements)
- 16 gauge minimum, 14 gauge maximum
power wire to connect controller to shelter
power source
- Communication wire: 2-wire, 18 gauge,
shielded with drain
- 5-wire, 18 gauge shielded cable with drain for
remote temperature and humidity sensors
- 18 gauge non-shielded wire for connecting
smoke detector, hydrogen detector and/or
generator, if applicable, to controller
-
- Miscellaneous electrical supplies including
- Fasteners appropriate for the shelter wall
CAT 6 Ethernet cable of field-determined length
(for remote communication, if applicable)
rigid/flexible conduit and fittings, 2" x 4"
junction boxes (one per temperature/humidity
sensor), wire connectors and supports
construction to attach the controller to the wall
The following is required and must be sourced prior
to installation of these units.
• One (1) 5A circuit breaker for the shelter DC
power plant (for the controller)
Circuit breakers for Emerson Network Power (ENP)
power plants (used in most telecomm shelters built
today) are available directly through the following
distributors:
• Emerson Network Power: 440.288.1122
• Master Electronics: 888.473.5297 or
www.onlinecomponents.com
Emerson Network Power (ENP) Part Number
• 5A circuit breaker: P/N 101598
Always confirm the application before ordering.
Page 6 of 36
RJ11 Cable
to Display
-48VDC to 24V
Power Supply
LV1000 CONTROLLER INSTALLATION
FIGURE 1.1
Typical LV1000 Component Location
Control Board
Power Loss Relay
Power Supply
Connections
USB
Connection
Shelter Inputs
and Outputs
Terminal Block
Page 7 of 36
!
WARNING
Electrical shock hazard.
Disconnect VAC and VDC power supplies
before servicing.
Failure to do so could result in electric shock
or death.
LV1000 Controller
The LV1000 controller is part of the Free Cooling
Unit system by Bard. It is used to control up to four
(4) wall-mount air conditioners from one controller.
The microprocessor control provides an easy-to-read
interface with large LCD graphical display. It provides
control for redundancy for the structure and equal wear
on all units. The LV1000 controller is configured for
first on/next on sequence.
Conduit is recommended for all wiring. Route
communication wiring and power supply wiring in their
own separate conduits.
The LV1000 controller is not weatherproof and is
intended for use in weathertight structure.
1. Mounting the LV1000 Controller
Because the LV1000 controller utilizes a remote
temperature sensor as opposed to one located in the
controller box, the controller itself can be installed in
any indoor location that is suitable, preferably at eye
level. Four (4) mounting holes are provided for mounting
to the wall and holes for conduit connection are provided
in both the base, sides and top of the controller.
The LV1000 controller includes a fused power supply
terminal in the terminal block. Before connecting wires
to the terminal block, confirm that the fuse in the fuse
holder is in the proper position (active) as shown in
Figure 1.2.
One remote indoor temperature/humidity sensor and 35' of 18 gauge shielded cable is included with the controller.
This sensor must be installed for proper operation. Mount the temperature/humidity sensor in a location least likely to
be affected by open doors, rack-mounted fans, radiant heat sources, etc. Location height should be approximately 60"
above the floor. The sensor should be installed on a 2" x 4" junction box to allow for control wire conduit (see Figure
1.3). Use shielded cable to connect to controller.
2. Connect the other end of the shielded cable to the sensor
terminals. Be sure wires are connected to proper terminals
as shown in table above. Sensor jumpers need to be
positioned for 0-1 V. With sensor oriented as shown in
image to right, move both jumpers to left position (DP1 and
DP2 set to OFF).
This applies to all temperature/humidity sensors connected
to the LV controller.
Sensor is best mounted on a junction box, and it is
recommended that the cable be in conduit.
Jumper
DP1
DP2
Page 9 of 36
For proper operation, the remote indoor temperature/humidity sensor must be configured properly with the
controller. If only the single remote indoor temperature/humidity sensor supplied with the controller is installed,
the configuration setting is "0". This is the default setting. Up to two additional temperature and humidity sensors
can be purchased and installed. Alternately, temperature-only sensors can be purchased and installed instead of
the combination sensors. For information on remote indoor sensor configuration, see page 21.
Use shielded cable to
connect additional sensors to controller.
FIGURE 1.4
Additional Remote Temperature and Temperature/Humidity Sensor Installation
Up to two additional temperature/humidity sensors may be added. Be sure the sensors are connected to the proper
terminals on the terminal block and sensor as listed below. See page 9 for information on correct sensor jumper
Temperature-only sensors can be used in place of the additional temperature/humidity sensors. #2 temperature-only sensor
will connect to TB# 26 and 27. #3 temperature-only sensor will connect to TB# 28 and 29. The wire connections for thetemperature-only sensors are not polarity sensitive.
20B3OUT HIndoor Humidity 2 Signal: 0-1 VDC
21GNDM (G)Indoor Humidity 2 Common
31+VDC+ (G)Indoor Humidity 2 Power
TB#
28B8NTC OUT Indoor Temperature 3
29GNDNTC OUT Ground
22B4OUT HIndoor Humidity 3 Signal: 0-1 VDC
23GNDM (G)Indoor Humidity 3 Common
32+VDC+ (G)Indoor Humidity 3 Power
Wire
Mark
Wire
Mark
SensorDescription
SensorDescription
Page 10 of 36
3. Additional LV1000 Connections
There are factory-installed jumpers across terminals #8 and #9 (smoke detector), #10 and #11 (hydrogen detector)
and #12 and #13 (generator run). Remove the factory-installed jumpers before connecting to the detectors and/or
generator (if applicable).
INPUTS
Smoke
Hydrogen
Generator
Anti-Theft
Power Loss
Humidifier
HVAC Fail
HVAC Maintenance
Anti-Theft
LV1000 ConnectionsSensor Connections
Wire MarkTerminalTerminal
DI18
GND9Ground
DI210Hydrogen Detector Input
GND11Ground
DI312Generator Run Input
GND13Ground
DI414Anti-Theft Device
GND15Ground
Relay - A1230VAC Power Loss Relay
Relay - A2230VAC Power Loss Relay
wiring guideine in Figure x.x
Varies by sensor used. See general
Description
Smoke Detector Input
OUTPUTS
LV1000 Connections
Wire MarkTerminalTerminal
NO134
C135Common
NO236Alarm Relay – HVAC Fail
C137Common
NO338
C139Common
NO440Alarm Relay – Anti-Theft
C241Common
External
Connections
guideine in Figure x.x
Varies. See general wiring
Description
Humidifier Output
Alarm Relay –
HVAC Maintenance
Fieldbus 1*
Fieldbus 2*
GroundFB-2 (–)46ShieldShield for Daisy Chain
* Polarity Sensitive
COMMUNICATIONS
LV1000 Connections
Wire MarkTerminalTerminal
FB-1 (–)421Wall Unit Daisy Chain
FB-1 (+)432Wall Unit Daisy Chain
FB-2 (–)44–IPv6 SNMP Board
FB-2 (+)45+Ground
External
Connections
Description
Page 11 of 36
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