Bard W48A23, W48L23, W60L23, W60A23 Installation Instructions Manual

INSTALLATION INSTRUCTIONS

WALL MOUNTED

P ACKAGE AIR CONDITIONERS

MODELS

W48A23 W48L23
W60A23 W60L23

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

Since 1914...Moving ahead just as planned.

Manual : 2100-594
Supersedes: NEW
File: Volume III Tab 16
Date: 04-23-13

Manual 2100-594
Page 1 of 19

Contents

Getting Other Information and Publications 3
Wall Mount General Information

Wall Mount Model Nomenclature
Shipping Damage

General .................................................................4

Duct Work
Condensate Drain

Filters .................................................................5

Installation Instructions

Wall Mounting Information
Mounting the Unit
Clearances Required
Wiring – Main Power

Wiring – Low Voltage Wiring

Start Up — R-410A

Figures

Figure 1 Unit Dimensions .......................................7

Figure 2 Unit Dimensions .......................................8

Figure 3 Unit Dimensions .......................................9

Figure 4 Unit Dimensions .....................................10

Figure 5 Wall Mounting Instructions .....................11

Figure 6 Wall Mounting Instructions .....................11

Figure 7 Common Wall Mounting Installations .....12

Figure 13 Fan Blade Setting ...................................17

.................................................................5

.....................................................4

....................................................5

......................................................6

................................................6

...............................................13

..............................4

........................................6

...................................13

General ...............................................................14

Topping Off System Charge
Safety Practices
Important Installer Note

High & Low Pressure Switch

Three Phase Scroll Compressor
Phase Monitor
Condenser Fan Operation
Service Hints
Sequence of Operation
Compressor Control Module

Adjustments

Pressure Service Ports

Troubleshooting

Fan Blade Setting Dimensions
Removal of Fan Shroud
Refrigerant Charge

Tables

Table 1 Maximum ESP Electric Heat Only ...........6

Table 2 Fan Blade Dimensions ...........................17

Table 3 Rated CFM & ESP .................................17

Table 4 Indoor Blower Performance ...................17

Table 5 Cooling Pressure ....................................18

Table 6 Electrical Specications W**A/L .............18

Table 7 Optional Accessories ..............................19

Table 8 Electric Heat ...........................................19

......................................................14

.........................................................15

...........................................................15

............................................................16

.................................................17

....................................14

...........................................15

...................................15

.............................15

......................................15

...........................................16

...................................16

...........................................16

................................17

..........................................17

Manual 2100-594
Page 2 of 19

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air

conditioner or heat pump. You can usually nd 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 W arm 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: [phone]
Fax: [phone]

ANSI American National Standards Institute
11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]

ASHRAE American Society of Heating, Refrigeration
and Air Conditioning Engineers, Inc.
1791 Tullie Circle, N.E.

Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]

NFPA National Fire Protection Association
Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

Manual 2100-594
Page 3 of 19

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

W 48 A 2 3 A 10 B X X X X A

MODEL NUMBER

CAPACITY

48 - 4 Ton
60 - 5 Ton

A - Air Conditioner
L - Left Hand Air Conditioner

3 - 3 Ton Air Openings on 5 Ton Cabinet

NOTE: Vent option B is without exhaust capability. May require separate eld 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.

REVISIONS

KW

VOLTS & PHASE

A - 230/208/60/1

VENTILATION OPTIONS

B - Blank-off Plate

FILTER OPTIONS

X - No Filters Required

COLOR OPTIONS

X - Beige (Standard)
1 - White
4 - Buckeye Gray
5 - Desert Brown
8 - Dark Bronze

OUTLET OPTIONS

X - Front (Standard)

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 S3402)

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 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 2100-594
Page 4 of 19

DUCT WORK

CONDENSATE DRAIN

All duct work, supply and return, must be properly

sized for the design airow 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
Table.

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.

For model series W48 and W60, a 1/4 inch clearance

to combustible material for the rst three feet of duct

attached to the outlet air frame is required. See Wall
Mounting Instructions and Figures 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.

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.

FILTERS

NOTE: W48A23, W48L23, W60A23 and W60L23 models

require the use of a return air lter grille.

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

lter grille, lters must be of sufcient size to allow a

maximum velocity of 400 fpm.

NOTE: If no return air duct is used, applicable
installation codes may limit this cabinet to
installation only in a single story structure.

Manual 2100-594
Page 5 of 19

INSTALLATION INSTRUCTIONS

WALL MOUNTING INFORMATION

1.

T wo holes for the supply and return air openings must
be cut through the wall as shown in Figure 1 or 2.
Figure 1 is for models W48A23 and W60A23.

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.

WARNING

Fire hazard can result if 1/4 inch clearance to

combustible materials for supply air duct is not

maintained.

3. Concrete block walls must be thoroughly inspected

to insure that they are capable of carrying the
weight of the installed unit.

WARNING

Failure to provide the 1/4 inch clearance
between the supply duct and a combustible

surface for the rst 3 feet of duct can result in
re causing damage, injury or death.

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

airow to the outdoor coil. Additional clearance

may be required to meet local or national codes.

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 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 ange and the rst 3 feet of supply air duct

require a minimum of 1/4 inch clearance to combustible
material. If a combustible wall, use a minimum of 30½"
x 10½" dimensions for sizing. However, it is generally
recommended that a 1 inch clearance is used for ease
of installation and maintaining the required clearance to
combustible material. The supply air opening would then
be 32" x 12".

3. Locate and mark lag bolt locations and bottom
mounting bracket location.

4. Mount bottom mounting bracket.

5.

Hook top rain ashing under back bend of top. Top rain
ashing is shipped secured to the right side of the back.

6.

Position unit in opening and secure with 5/16 lag bolts;

use 7/8 inch diameter at washers on the lag bolts.

7. Secure rain ashing to wall and caulk across entire

length of top.

Clearances Required for Service Access

and Adequate Condenser Airow

MODELS LEFT SIDE RIGHT SIDE

W48A, W60A 20" 20"
W48L, W60L 20" 20"

NOTE: For side by side installation of two (2) W**A models there
must be 20" between units. This can be reduced to 15" by using a
W**L model (left side compressor and controls) for the left unit and
WA (right side compressor and controls) for right unit.

See W**A / W**L Specication S3402.

TABLE 1

MAXIMUM ESP OF OPERATION

ELECTRIC HEAT ONLY

MODELS ESP

W60A23 - ONLY
W60L23 - ONLY

VALUES SHOWN ARE FOR UNITS EQUIPPED WITH
STANDARD 1" THROWAWAY FILTERS OR 1" WASHABLE
FILTERS. DERATE ESP BY .15 FOR 2" PLEATED FILTERS.

A05
A10

.4
.3

Manual 2100-594
Page 6 of 19