Bard W60H1D, W24H1, W60H1, W30H1D, W42H1 User Manual
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INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE HEAT PUMPS
MODELS
W18H1
W24H1 W24H1D
W30H1 W30H1D
W36H1 W36H1D
W42H1 W42H1D
W48H1 W48H1D
W60H1 W60H1D
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Manual: 2100-511F
Supersedes: 2100-511E
File: Volume III Tab 17
Date: 02-17-12
Manual 2100-511F
Page 1 of 27
Contents
Getting Other Information and Publications 3
Wall Mount General Information
Wall Mount Model Nomenclature ............................ 4
Shipping Damage .................................................... 4
General ................................................................ 4
Duct Work ................................................................ 5
Filters ................................................................ 5
Fresh Air Intake ....................................................... 5
Condensate Drain.................................................... 5
Installation Instructions
Wall Mounting Information....................................... 6
Mounting the Unit .................................................... 6
Clearances Required............................................... 6
Minimum Clearances ............................................... 6
Wiring – Main Power ............................................. 14
Wiring – Low Voltage Wiring ................................. 14
Figures
Figure 1 Fresh Air Damper Assembly ................... 5
Figure 2 Unit Dimensions...................................... 7
Figure 3A Mounting Instructions .............................. 8
Figure 3B
Figure 3C
Figure 4 Electric Heat Clearance .........................11
Figure 5 Wall Mounting Instructions .................... 12
Figure 6 Wall Mounting Instructions .................... 12
Figure 7 Common Wall Mounting Installations .... 13
Figure 8 Defrost Control Board ........................... 18
Figure 9 Fan Blade Setting ................................. 21
Mounting Instructions - W18, W24, W30, W36 .... 9
Mounting Instructions - W42, W48, W60.....10
Start Up
General .............................................................. 15
Topping Off System Charge................................... 15
Safety Practices..................................................... 15
Important Installer Note ......................................... 16
Wall Mounted Air Conditioner ................................ 16
Three Phase Scroll Compressor............................ 16
Phase Monitor ....................................................... 16
Condenser Fan Operation ..................................... 16
Service Hints ......................................................... 16
Sequence of Operation.......................................... 17
Pressure Service Ports.......................................... 17
Defrost Cycle ......................................................... 17
Troubleshooting
Solid State Heat Pump Control.............................. 19
Checking Temperature Sensor .............................. 20
Fan Blade Setting Dimensions .............................. 21
Removal of Fan Shroud......................................... 21
Refrigerant Charge ................................................ 21
Tables
Table 1 Troubleshooting .................................... 19
Table 2 Fan Blade Dimension............................ 21
Table 3A Cooling Pressure .................................. 22
Table 3B Heating Pressure .................................. 22
Table 4 Electrical Specifications W**H .............. 23
Table 5 Recommended Airflow .......................... 24
Table 6 Indoor Blower Performance .................. 24
Tables 7 Maximum ESP Electric Heat Only........ 25
Table 8 Electric Heat ......................................... 25
Table 9 Optional Accessories ........................... 26
Table 10 Vent & Control Options ......................... 27
Manual 2100-511F
Page 2 of 27
GETTING OTHER INFORMATION AND PUBLICATIONS
These publications can help you install the air
conditioner or heat pump. You can usually find these at
your local library or purchase them directly from the
publisher. Be sure to consult current edition of each
standard.
National Electrical Code ...................... ANSI/NFPA 70
Standard for the Installation .............. ANSI/NFPA 90A
of Air Conditioning and Ventilating Systems
Standard for Warm Air ...................... ANSI/NFPA 90B
Heating and Air Conditioning Systems
Load Calculation for............................ ACCA Manual J
Residential Winter and Summer Air Conditioning
Duct Design for Residential .............. ACCA Manual D
Winter and Summer Air Conditioning and Equipment
Selection
FOR MORE INFORMATION, CONTACT
THESE PUBLISHERS:
ACCA Air Conditioning Contractors of America
1712 New Hampshire Ave. N.W.
Washington, DC 20009
Telephone: (202) 483-9370
Fax: (202) 234-4721
ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: (212) 642-4900
Fax: (212) 302-1286
ASHRAE American Society of Heating, Refrigeration
and Air Conditioning Engineers, Inc.
1791 Tullie Circle, N.E.
Atlanta, GA 30329-2305
Telephone: (404) 636-8400
Fax: (404) 321-5478
NFPA National Fire Protection Association
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: (800) 344-3555
Fax: (617) 984-7057
Manual 2100-511F
Page 3 of 27
WALL MOUNT GENERAL INFORMATION
HEAT PUMP WALL MOUNT MODEL NOMENCLATURE
W 42 H 1– A 10 X X X X X A
MODEL NUMBER
CAPACITY
18 - 1
½
Ton
24 - 2 Ton
½ Ton
30 - 2
36 - 3 Ton
42 - 3½ Ton
48 - 4 Ton
60 - 5 Ton
1 For 0 KW and circuit breakers (230/208 volt) or toggle disconnect (460V) applications, insert 0Z in the KW field of the model number.
2 Insert “D” for dehumidification with hot gas reheat. Reference Form 7960-576 for complete details.
NOTE: Vent options X, B and M are without exhaust capability. May require separate field supplied barometric relief in building.
H - Heat Pump
SPECIALTY PRODUCTS 2
(Non-Standard)
VENTILATION OPTIONS
X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
M - Motorized Fresh Air Damper
V - Commercial Ventilator - Motorized with Exhaust
E - Economizer (Internal) - Fully Modulating with Exhaust
R - Energy Recovery Ventilator - Motorized with Exhaust
(See Spec. Sheet S3398)
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.
REVISIONS
VOLTS & PHASE
A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3
KW
1
COLOR OPTIONS
X - Beige (Standard)
1 - White
4 - Buckeye Gray
5 - Desert Brown
8 - Dark Bronze
FILTER OPTIONS
X - One Inch Throwaway (Standard)
W - One Inch Washable
P - Two Inch Pleated
OUTLET OPTIONS
X - Front (Standard)
T - Top Outlet (W30H, W36H Only)
These instructions and any instructions packaged with
any separate equipment required to make up the entire
air conditioning system should be carefully read before
beginning the installation. Note particularly “Starting
Procedure” and any tags and/or labels attached to the
equipment.
CONTROL MODULES
(See Spec. Sheet S3398)
COIL OPTIONS
X - Standard
1 - Phenolic Coated Evaporator
2 - Phenolic Coated Condenser
3 - Phenolic Coated Evaporator
and Condenser
While these instructions are intended as a general
GENERAL
The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.
The refrigerant system is completely assembled and
charged. All internal wiring is complete.
The unit is designed for use with or without duct work.
Flanges are provided for attaching the supply and return
ducts.
These instructions explain the recommended method to
install the air cooled self-contained unit and the
electrical wiring connections to the unit.
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 Page 3 for information on codes and
standards.
Size of unit for a proposed installation should be based
on heat loss/gain calculation made according to methods
of Air Conditioning Contractors of America (ACCA).
The air duct should be installed in accordance with the
Standards of the National Fire Protection Association
for the Installation of Air Conditioning and Ventilating
Systems of Other Than Residence Type, NFPA No.
90A, and Residence Type Warm Air Heating and Air
Conditioning Systems, NFPA No. 90B. Where local
regulations are at a variance with instructions, installer
should adhere to local codes.
Manual 2100-511F
Page 4 of 27
DUCT WORK
All duct work, supply and return, must be properly sized
for the design airflow requirement of the equipment. Air
Conditioning Contractors of America (ACCA) is an
excellent guide to proper sizing. All duct work or portions
thereof not in the conditioned space should be properly
insulated in order to both conserve energy and prevent
condensation or moisture damage.
Refer to Maximum ESP of operation Electric Heat Tables 7.
FILTERS
A 1-inch throwaway filter is standard with each unit.
The filter slides into position making it easy to service.
This filter can be serviced from the outside by removing
the filter access panel. A 1-inch washable filter and 2inch pleated filter are also available as optional
accessories. The internal filter brackets are adjustable
to accommodate the 2-inch filter by bending two (2)
tabs down on each side of the filter support bracket.
Design the duct work according to methods given by the Air
Conditioning Contractors of America (ACCA). When duct
runs through unheated spaces, it should be insulated with a
minimum of one inch of insulation. Use insulation with a
vapor barrier on the outside of the insulation. Flexible joints
should be used to connect the duct work to the equipment in
order to keep the noise transmission to a minimum.
Models W18 & W24 are approved for zero inch clearance
to the supply duct. For model series W30, W36, W42, W48
and W60 a 1/4 inch clearance to combustible material for
the first three feet of duct attached to the outlet air frame is
required. See Wall Mounting Instructions and Figures 3 and
4 for further details.
Ducts through the walls must be insulated and all joints
taped or sealed to prevent air or moisture entering the wall
cavity.
Some installations may not require any return air duct. A
metallic return air grille is required with installations not
requiring a return air duct. The spacing between louvers on
the grille shall not be larger than 5/8 inch.
Any grille that meets with 5/8 inch louver criteria may be
used. It is recommended that Bard Return Air Grille Kit
RG2 through RG5 or RFG2 through RFG5 be installed
when no return duct is used. Contact distributor or factory
for ordering information. If using a return air filter grille,
filters must be of sufficient size to allow a maximum
velocity of 400 fpm.
FRESH AIR INTAKE
All units are built with fresh air inlet slots punched in
the service door.
If the unit is equipped with a fresh air damper assembly,
the assembly is shipped already attached to the unit.
The damper blade is locked in the closed position. To
allow the damper to operate, the maximum and
minimum blade position stops must be installed. See
Figure 1.
All capacity, efficiency and cost of operation
information is based upon the fresh air blank-off plate in
place and is recommended for maximum energy
efficiency.
The blank-off plate is available upon request from the
factory and is installed in place of the fresh air damper
shipped with each unit.
CONDENSATE DRAIN
A plastic drain hose extends from the drain pan at the
top of the unit down to the unit base. There are
openings in the unit base for the drain hose to pass
through. In the event the drain hose is connected to a
drain system of some type, it must be an open or vented
type system to assure proper drainage.
NOTE: If no return air duct is used, applicable installation
codes may limit this cabinet to installation only in a
single story structure.
FIGURE 1
FRESH AIR DAMPER
Manual 2100-511F
Page 5 of 27
INSTALLATION INSTRUCTIONS
WALL MOUNTING INFORMATION
1. Two holes for the supply and return air openings
must be cut through the wall as shown in Figure 3.
2. On wood frame walls, the wall construction must be
strong and rigid enough to carry the weight of the
unit without transmitting any unit vibration.
3. Concrete block walls must be thoroughly inspected
to insure that they are capable of carrying the weight
of the installed unit.
MOUNTING THE UNIT
1. These units are secured by wall mounting brackets
which secure the unit to the outside wall surface at
both sides. A bottom mounting bracket, attached to
skid for shipping, is provided for ease of installation,
but is not required.
2. The unit itself is suitable for 0 inch clearance, but
the supply air duct flange and the first 3 feet of
supply air duct require a minimum of 1/4 inch
clearance to combustible material for model series
W30, W36, W42, W48 and W60. However, it is
generally recommended that a 1-inch clearance is
used for ease of installation and maintaining the
required clearance to combustible material. See
Figure 3 for details on opening sizes.
3. Locate and mark lag bolt locations and bottom
mounting bracket location. See Figure 3.
WARNING
Failure to provide the 1/4 inch clearance
between the supply duct and a combustible
surface for the first 3 feet of duct can result in
fire causing damage, injury or death.
6. Position unit in opening and secure with 5/16 lag
bolts; use 7/8 inch diameter flat washers on the lag
bolts.
7. Secure rain flashing to wall and caulk across entire
length of top. See Figure 3.
8. For additional mounting rigidity, the return air and
supply air frames or collars can be drilled and
screwed or welded to the structural wall itself
(depending upon wall construction). Be sure to
observe required clearance if combustible wall.
9. On side-by-side installations, maintain a minimum
of 20 inches clearance on right side to allow access
to control panel and heat strips, and to allow proper
airflow to the outdoor coil. Additional clearance
may be required to meet local or national codes.
4. Mount bottom mounting bracket.
5. Hook top rain flashing, attached to front - right of
supply flange for shipping, under back bend of top.
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Manual 2100-511F
Page 6 of 27
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All dimensions are in inches. Dimensional drawings are not to scale.
YLPPUSNRUTER
AB C B E F G I J K L MNO P QRST
W**H
RIGHT
UNIT
FRONT VIEW
SIDE VIEW
*Optional top outlet (factory installed only) for W30H and W36H models only.
BACK VIEW
Manual 2100-511F
Page 7 of 27
FIGURE 3A
W18H1, W24H1
MOUNTING INSTRUCTIONS
Manual 2100-511F
Page 8 of 27
FIGURE 3B
W30H1, W36H1
MOUNTING INSTRUCTIONS
Manual 2100-511F
Page 9 of 27
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