INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE HEAT PUMPS
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MODELS |
W18H1 |
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W24H1 |
W24H1D |
W30H1 |
W30H1D |
W36H1 |
W36H1D |
W42H1 |
W42H1D |
W48H1 |
W48H1D |
W60H1 |
W60H1D |
Bard Manufacturing Company, Inc. |
Manual: |
2100-511F |
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Bryan, Ohio 43506 |
Supersedes: |
2100-511E |
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Since 1914...Moving ahead just as planned. |
File: |
Volume III Tab 17 |
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Date: |
02-17-12 |
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Manual |
2100-511F |
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Page |
1 of 27 |
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Contents
Getting Other Information and Publications |
3 |
Wall Mount General Information |
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Wall Mount Model Nomenclature ............................ |
4 |
Shipping Damage .................................................... |
4 |
General ................................................................ |
4 |
Duct Work ................................................................ |
5 |
Filters ................................................................ |
5 |
Fresh Air Intake ....................................................... |
5 |
Condensate Drain .................................................... |
5 |
Installation Instructions |
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Wall Mounting Information ....................................... |
6 |
Mounting the Unit .................................................... |
6 |
Clearances Required ............................................... |
6 |
Minimum Clearances ............................................... |
6 |
Wiring – Main Power ............................................. |
14 |
Wiring – Low Voltage Wiring ................................. |
14 |
Figures |
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Figure 1 |
Fresh Air Damper Assembly ................... |
5 |
Figure 2 |
Unit Dimensions ...................................... |
7 |
Figure 3A |
Mounting Instructions .............................. |
8 |
Figure 3B Mounting Instructions - W18, W24, W30, W36 .... |
9 |
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Figure 3C Mounting Instructions - W42, W48, W60 ..... |
10 |
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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 |
Start Up |
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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 |
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Solid State Heat Pump Control .............................. |
19 |
Checking Temperature Sensor .............................. |
20 |
Fan Blade Setting Dimensions .............................. |
21 |
Removal of Fan Shroud ......................................... |
21 |
Refrigerant Charge ................................................ |
21 |
Tables |
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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 |
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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 |
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Standard for Warm Air ...................... |
ANSI/NFPA 90B |
Heating and Air Conditioning Systems |
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Load Calculation for ............................ |
ACCA Manual J |
Residential Winter and Summer Air Conditioning |
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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 |
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1712 New Hampshire Ave. N.W. |
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Washington, DC 20009 |
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Telephone: (202) 483-9370 |
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Fax: (202) 234-4721 |
ANSI |
American National Standards Institute |
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11 West Street, 13th Floor |
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New York, NY 10036 |
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Telephone: (212) 642-4900 |
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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 |
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Batterymarch Park |
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P.O. Box 9101 |
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Quincy, MA 02269-9901 |
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Telephone: (800) 344-3555 |
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Fax: (617) 984-7057 |
Manual |
2100-511F |
Page |
3 of 27 |
WALL MOUNT GENERAL INFORMATION
HEAT PUMP WALL MOUNT MODEL NOMENCLATURE
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W |
42 |
H |
1 – |
A |
10 |
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MODEL NUMBER |
REVISIONS |
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KW 1 |
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CAPACITY |
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18 |
- 1½ Ton |
H - Heat Pump |
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VOLTS & PHASE |
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24 |
- 2 Ton |
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A - 230/208/60/1 |
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30 |
- 2½ Ton |
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B - 230/208/60/3 |
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36 |
- 3 Ton |
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C - 460/60/3 |
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42 |
- 3½ Ton |
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48 |
- 4 Ton |
SPECIALTY PRODUCTS 2 |
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60 |
- 5 Ton |
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(Non-Standard) |
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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)
X |
X |
X |
X |
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X |
A |
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CONTROL MODULES |
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(See Spec. Sheet S3398) |
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COIL OPTIONS |
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COLOR OPTIONS |
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X - |
Standard |
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X - |
Beige (Standard) |
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1 |
- |
Phenolic Coated Evaporator |
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1 |
- |
White |
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2 |
- |
Phenolic Coated Condenser |
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4 |
- |
Buckeye Gray |
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3 |
- Phenolic Coated Evaporator |
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5 |
- |
Desert Brown |
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and Condenser |
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8 |
- |
Dark Bronze |
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OUTLET OPTIONS
X - Front (Standard)
T - Top Outlet (W30H, W36H Only)
FILTER OPTIONS
X - One Inch Throwaway (Standard)
W - One Inch Washable
P - Two Inch Pleated
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.
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
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.
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.
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 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.
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.
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 2- inch 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.
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.
4.Mount bottom mounting bracket.
5.Hook top rain flashing, attached to front - right of supply flange for shipping, under back bend of top.
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.
Clearances Required for Service Access and Adequate Condenser Airflow
MODELS |
LEFT SIDE |
RIGHT SIDE |
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W18H, W24H, W30H, W36H |
15" |
20" |
W42H, W48H, W60H |
20" |
20" |
Minimum Clearances Required to Combustible Materials
MODELS |
SUPPLY AIR DUCT |
CABINET |
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FIRST THREE FEET |
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W18H |
/ W24H |
0" |
0" |
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W30H |
/ W36H |
1/4" |
0" |
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W42H |
/ W48H / W60H |
1/4" |
0" |
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Manual |
2100-511F |
Page |
6 of 27 |
FIGURE 2
Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)
MODEL |
WIDTH |
DEPTH |
HEIGHT |
SUPPLY |
RETURN |
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(W) |
(D) |
(H) |
A |
B |
C |
B |
E |
F |
G |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
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W18H1 |
33.300 |
17.125 |
70.563 |
7.88 |
19.88 |
11.88 |
19.88 |
35.00 |
18.50 |
25.75 |
20.56 |
26.75 |
28.06 |
29.25 |
27.00 |
2.63 |
34.13 |
22.06 |
10.55 |
5.00 |
12.00 |
5.00 |
W24H1 |
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W30H1 |
38.200 |
17.125 |
70.563 |
7.88 |
27.88 |
13.88 |
27.88 |
40.00 |
18.50 |
25.75 |
17.93 |
26.75 |
28.75 |
29.25 |
27.00 |
2.63 |
39.13 |
22.75 |
9.14 |
5.00 |
12.00 |
5.00 |
W36H1 |
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W42H1 |
42.075 |
22.432 |
84.875 |
9.88 |
29.88 |
15.88 |
29.88 |
43.88 |
19.10 |
31.66 |
30.00 |
32.68 |
26.94 |
34.69 |
32.43 |
3.37 |
43.00 |
23.88 |
10.00 |
1.44 |
16.00 |
1.88 |
W48H1 |
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W60H1 |
42.075 |
22.432 |
94.875 |
9.88 |
29.88 |
15.88 |
29.88 |
43.88 |
13.56 |
41.66 |
30.00 |
42.68 |
36.94 |
44.69 |
42.43 |
3.37 |
43.00 |
33.88 |
10.00 |
1.44 |
16.00 |
1.88 |
All dimensions are in inches. Dimensional drawings are not to scale.
W**H
RIGHT
UNIT
FRONT VIEW |
SIDE VIEW |
BACK VIEW |
*Optional top outlet (factory installed only) for W30H and W36H models only.
Manual |
2100-511F |
Page |
7 of 27 |
MOUNTING INSTRUCTIONS
W18H1, W24H1
FIGURE 3A
Manual |
2100-511F |
Page |
8 of 27 |
FIGURE 3B |
W30H1, W36H1 |
MOUNTING INSTRUCTIONS |
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Manual |
2100-511F |
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Page |
9 of 27 |