Bard W24AA-B, W30AA-B, W24AA-C, W24AA-D, W24AA-F Installation Instructions Manual
...
INSTALLATION INSTRUCTIONS
WALL MOUNTED PACKAGED
AIR CONDITIONER
Models:
W18AA-A
W24AA-A
W24AA-B
W24AA-C
W24AA-D
W24AA-F
W30AA-A
W30AA-B
W30AA-C
W30AA-D
W30AA-F
W36AA-A
W36AA-B
W36AA-C
W36AA-D
W36AA-E
W36AA-F
W42AA-A
W42AA-B
W42AA-C
W42AA-E
W42AA-F
W48AA-A
W48AA-B
W48AA-C
W48AA-E
W48AA-F
W60AA-A
W60AA-B
W60AA-C
W60AA-E
W60AA-F
W72AB-A
W72AB-B
W72AB-C
W72AB-F
W18LA-A
W24LA-A
W24LA-B
W24LA-F
W30LA-A
W30LA-B
W30LA-C
W30LA-F
W36LA-A
W36LA-B
W36LA-C
W36LA-F
W42LA-A
W42LA-B
W42LA-C
W42LA-F
W48LA-A
W48LA-B
W48LA-C
W48LA-F
W60LA-A
W60LA-B
W60LA-C
W60LA-F
W72LB-A
W72LB-B
W72LB-C
W72LB-F
W30AADA
W30AADB
W30AADC
W36AADA
W36AADB
W36AADC
W42AADA
W42AADB
W42AADC
W48AADA
W48AADB
W48AADC
W60AADA
W60AADB
W60AADC
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
Manual: 2100-640F
Supersedes: 2100-640E
Date: 3-21-18
Page 1 of 32
CONTENTS
Getting Other Information and Publications .... 3
Wall Mount General Information .........................4
Air Conditioner Wall Mount Model Nomenclature ..... 4
Shipping Damage ................................................. 4
General ............................................................... 4
Duct Work ........................................................... 5
Filters ................................................................. 5
Fresh Air Intake ................................................... 5
Condensate Drain ................................................ 5
Installation ............................................................... 6
Wall Mounting Information .................................... 6
Mounting the Unit ................................................ 6
Clearances Required ............................................. 6
Minimum Clearances ............................................ 6
Wiring – Main Power ........................................... 15
Wiring – Low Voltage Wiring ................................. 15
Figures
Figure 1 Fresh Air Damper .................................. 5
Figure 2 Unit Dimensions ................................... 7
Figure 3A Mounting Instructions
Figure 3B
Figure 3C
Mounting Instructions –
Mounting Instructions –
Figure 3D Mounting Instructions –
W18, 24
W30, 36
W42, 48 ..............
W60, 72 ..............
............ 8
................9
10
11
–
Figure 4 Electric Heat Clearance ....................... 12
Figure 5 Wall Mounting Instructions .................. 13
Figure 6 Wall Mounting Instructions .................. 13
Figure 7 Common Wall Mounting Installations .... 14
Figure 8 Programmable Thermostat
Connections ....................................... 17
Figure 9 Non-Programmable Thermostat
Connections ....................................... 18
Figure 10 Motor Connections .............................. 22
Figure 11 Motor Connections .............................. 23
Figure 12 Fan Blade Setting ............................... 24
Start Up ................................................................... 19
General ............................................................. 19
Topping Off System Charge ................................. 19
Safety Practices ................................................. 19
Important Installer Note ...................................... 19
High Pressure Switch .......................................... 20
Three Phase Scroll Compressor ............................ 20
Phase Monitor .................................................... 20
Condenser Fan Operation .................................... 20
Service Hints ..................................................... 20
Sequence of Operation ........................................ 20
Vent Connection Plug .......................................... 20
Compressor Control Module ................................. 21
Pressure Service Ports ........................................ 21
Service ..................................................................... 22
Troubleshooting Nidec SelecTech Series ECM
Motors ............................................................... 22
Fan Blade Setting Dimensions ............................. 24
R-410A Refrigerant Charge ................................. 24
Removal of Fan Shroud ....................................... 24
Tables
Table 1 Wall Thermostats ................................ 16
Table 2 Humidity Controls ............................... 16
Table 3 CO
Controller ..................................... 16
2
Table 4 Thermostat Wire Size ........................... 16
Table 5 Fan Blade Dimensions ......................... 24
Table 6 Cooling Pressure ................................. 25
Table 7 Electrical Specifications W**AA ........... 26
Table 8 Electrical Specifications W**LA ............ 27
Table 9 Recommended Airflow ......................... 28
Table 10 Indoor Blower Performance .................. 28
Table 11 Maximum ESP Electric Heat Only ......... 28
Table 12 Electric Heat ...................................... 29
Table 13 Vent and Control Options ..................... 30
Table 14A Optional Accessories
Table 14B Optional Accessories
– Right Hand ....... 31
– Left Hand .............32
Manual 2100-640F
Page 2 of 32
GETTING OTHER INFORMATION AND 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 ..............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 2100-640F
Page 3 of 32
WALL MOUNT GENERAL INFORMATION
AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE
W 42 A A – A 10 X X X X X A
MODEL SERIES
CAPACITY
18 – 1½ Ton
24 – 2 Ton
30 – 2½ Ton
36 – 3 Ton
Insert “D” for dehumidification with hot gas reheat.
Reference Form 7960-736 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.
42 – 3½ Ton
48 – 4 Ton
60 – 5 Ton
72 – 6 Ton
A – Right Hand
L – Left Hand
A – 230/208/60/1
B – 230/208/60/3
C – 460/60/3
D – 240/220/50/1
REVISION
SPECIALTY PRODUCTS
(Non-Standard)
VOLTS & PHASE
E – 240/220/50/3
or 220/200/50/3
F – 415/380/50/3
X – Barometric Fresh Air Damper (Standard)
B – Blank-off Plate
M – Motorized Fresh Air Damper
V – Commercial Ventilator - Motorized with Exhaust
OUTLET OPTIONS
X – Front (Standard)
T – Top Outlet (W30A, W36A only)
COLOR OPTIONS
X – Beige (Standard)
1 – White
KW
VENTILATION OPTIONS
4 – Buckeye Gray
5 – Desert Brown
FILTER OPTIONS
X – 1" Throwaway (Standard)
W – 1" Washable
P – 2" Pleated
R – Energy Recovery Ventilator - Motorized with Exhaust
Y – Full Flow Economizer - DB Temp.
Z – Full Flow Economizer - Enthalpy
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
CONTROL MODULES
(See Spec. Sheet S3502)
COIL OPTIONS
X – Standard
1 – Phenolic Coated Evaporator
2 – Phenolic Coated Condenser
3 – Phenolic Coated Evaporator
and Condenser
8 – Dark Bronze
A – Aluminum
S – Stainless Steel
beginning the installation. Note particularly “Starting
GENERAL
Procedure” and any tags and/or labels attached to the
equipment.
The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.
While these instructions are intended as a general
recommended guide, they do not supersede any
national and/or local codes in any way. Authorities
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
having jurisdiction should be consulted before the
installation is made. See page 3 for information on
codes and standards.
knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person
responsible for their safety.
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
Children should be supervised to ensure that they do
not play with the appliance.
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.
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 2100-640F
Page 4 of 32
DUCT WORK
FRESH AIR INTAKE
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 Table
11 on page 28.
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 0" clearance to
the supply duct. For model series W30, W36, W42,
W48, W60 and W72, a 1/4" clearance to combustible
material for the first 3' of duct attached to the outlet
air frame is required. See wall mounting instructions
on page 6 and Figures 3 and 4 (pages 8 – 12) for
further details.
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.
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".
Any grille that meets with 5/8" 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.
NOTE: If no return air duct is used, applicable
installation codes may limit this cabinet to
installation only in a single story structure.
FILTERS
A 1" 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" washable filter and 2" pleated
filter are also available as optional accessories. The
internal filter brackets are adjustable to accommodate
the 2" filter by bending two tabs down on each side of
the filter support bracket.
FIGURE 1
Fresh Air Damper
Manual 2100-640F
Page 5 of 32
INSTALLATION
WALL MOUNTING INFORMATION
1. Two holes for the supply and return air openings
must be cut through the wall as shown in Figures
Figures 3A – D (pages 8 – 11).
WARNING
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 and brick 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 supply air duct flange and the first 3' of supply
air duct require a minimum of 1/4" clearance
to combustible material for model series W30,
W36, W42, W48, W60 and W72. However, it
is generally recommended that a 1" clearance is
used for ease of installation and maintaining the
required clearance to combustible material. See
Figures 3A – D for details on opening sizes.
3. Locate and mark lag bolt locations and bottom
mounting bracket location (see Figures 3A – D).
4. Mount bottom mounting bracket.
Failure to provide the 1/4" clearance between
the supply duct and a combustible surface
for the rst 3' of duct can result in re causing
damage, injury or death.
6. Position unit in opening and secure with 5/16 lag
bolts; use 7/8" diameter flat washers on the lag
bolts.
7. Secure rain flashing to wall and caulk across entire
length of top (see Figures 3A – D).
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" clearance on right side to allow access to
control panel and heat strips and proper airflow
to the outdoor coil. Additional clearance may be
required to meet local or national codes.
5. Hook top rain flashing, attached to front-right of
supply flange for shipping, under back bend of top.
Clearances Required for Service Access and
Adequate Condenser Airflow
LEFT
MODELS
W18A, W24A, W30A, W36A 15" 20" 10'
W18L, W24L, W30L, W36L 20" 15" 10'
W42A, W48A, W60A, W72A 20" 20" 10'
W42L, W48L, W60L, W72L 20" 20" 10'
NOTE: For side-by-side installation of two 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 W**A
(right side compressor and controls) for right unit.
See Specifications Sheet S3502.
Manual 2100-640F
Page 6 of 32
SIDE
RIGHT
SIDE
DISCHARGE
SIDE
Minimum Clearances Required to
Combustible Materials
MODELS
W18A, L
W24A, L
W30A, L
W36A, L
W42A, L
W48A, L
W60A, L
W72A, L
SUPPLY AIR DUCT
FIRST 3'
0" 0"
1/4" 0"
1/4" 0"
CABINET
FIGURE 2
Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)
WIDTH
DEPTH
MODEL
W18*A
W24*A
W30*A
W36*A
W42*A
W48*A
W60*A
W72*B
(W)
33.300 17.125 74.563 7.88 19.88 11.88 19.88 35.00 10.88 29.75 20.56 30.75 32.06 33.25 31.00 2.63 34.13 26.06 10.55 4.19 12.00 9.00
38.200 17.125 74.563 7.88 27.88 13.88 27.88 40.00 10.88 29.75 17.93 30.75 32.75 33.25 31.00 2.75 39.13 26.75 9.14 4.19 12.00 9.00
42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 13.56 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
42.075 22.432 93.000 9.88 29.88 15.88 29.88 43.88 13.56 37.00 30.00 40.81 35.06 42.81 40.56 3.37 43.00 31.00 10.00 1.44 16.00 10.00
HEIGHT
(D)
All dimensions are in inches. Dimensional drawings are not to scale.
W**A*
RIGHT
UNIT
Filter Access Panel
5.88
F
G
1
Ventilation Air
Condenser
Air Outlet
Front View
.44
Supply Air Opening
W**L*
LEFT
UNIT
Return Air Opening
Bottom
Installation
Bracket
SUPPLY RETURN
(H)
A B C B E F G I J K L M N O P Q R S T
W
E
O
B
Back View
Q
Rain Hood
C. Breaker/
Disconnect
Access Panel
(Lockable)
Hood for CRV and
ECON models
only
Standard
flush vent
door for nonERV/CRV
Econ.
models
Low Voltage
High Voltage
Side Wall
Mounting
Brackets
(Built In)
Top Rain
Flashing
Shipping
Location
Optional
Electrical
Entrances
H
L
M
P
N
Built In
4° Pitch
Heater
Access
Panel
Electric
Heat
3"
Electrical
Entrance
Electrical
Entrance
Built In
Rain Hood
4° Pitch
2.13
A
I
C
K
7.00
J
D
1.250
Cond.
Air
Inlet
Side View
D
1.250
Cond.
Air
Inlet
Side View
J
Drain
Electric
Heat
Heater
Access
Panel
C. Breaker/
Disconnect
Access Panel
(Lockable)
Standard flush
non-ERV/CRV
Hood for CRV and
ECON models
only
7.000
Low Voltage
Electrical
Entrance
High Voltage
Electrical
Entrance
2.13
Side Wall
A
Mounting
I
C
H
Entrances
K
vent door for
Econ. models
3"
Brackets
(Built In)
Top Rain
Flashing
Shipping
Location
Optional
Electrical
L
M
N
P
Q
Filter Access Panel
Ventilation Air
E
O
Supply Air Opening
B
Return Air Opening
Back View
W
1
Condenser
Air Outlet
Front View
.44
Bottom Installation
Bracket
MIS-3737
R
S
S
S
S
S
T
MIS-3736
5.88
F
G
Manual 2100-640F
Page 7 of 32
MIS-3157 A
WALL STRUCTURE
FOAM AIR SEAL
SUPPLIED
RAIN FLASHING
FIGURE 3A
SEAL WITH BEAD
OF CAULKING ALONG
ENTIRE LENGTH OF TOP.
TOP
Mounting Instructions
W18AA, W18LA, W24AA, W24LA
NOTES:
RETURN AIR
SUPPLY AIR
DUCT
PANEL
HEATER ACCESS
WALL
"
1
8"
2
20
OPENING
12"
IT IS RECOMMENDED THAT A BEAD OF
SILICONE CAULKING BE PLACED BEHIND
THE SIDE MOUNTING FLANGES AND UNDER
TOP FLASHING AT TIME OF INSTALLATION.
IS ON OPPOSITE (LEFT) SIDE.
CONTROLS AND HEATER ACCESS
J**A UNIT SHOWN, J**L UNIT
5"
"
1
16
"
1
8
3
4"
Typ.
2"
Manual 2100-640F
Page 8 of 32
20"
Supply Opening
" 7
1
16
7
"
13
16
3
12"
12"
20"
Return Opening
12"
12"
1"
3"
12"
4"
Typ.
"
2"
7
8
Wall Opening and Hole Location View Right Side View
9"
FOUR SIDES OF SUPPLY
Wall Opening and Hole Location View
1/4" MIN. CLEARANCE FROM
COMBUSTIBLE MATERIALSCRECOMMENDED 1" CLEARANCE FROM
REQUIRED DIMENSIONS TO MAINTAIN
COMBUSTIBLE MATERIALS
REQUIRED DIMENSIONS TO MAINTAIN
AIR DUCT IS REQUIRED
1/4" CLEARANCE ON ALL
FROM COMBUSTABLE
MIS-3820
MATERIALS
WALL STRUCTURE
FOAM AIR SEAL
SUPPLIED
RAIN FLASHING
FIGURE 3B
SEAL WITH BEAD
OF CAULKING ALONG
Mounting Instructions
W30AA, W30LA, W36AA, W36LA
ENTIRE LENGTH OF TOP.
ED
17 5/8
3 11/16
TOP
4 7/16
TOP FLASHING AT TIME OF INSTALLATION.
IT IS RECOMMENDED THAT A BEAD OF
THE SIDE MOUNTING FLANGES AND UNDER
SUPPLY AIR
DUCT
RETURN AIR
OPENING
NOTES:
SILICONE CAULKING BE PLACED BEHIND
W**A UNIT SHOWN, W**L UNIT
CONTROLS AND HEATER ACCESS
IS ON OPPOSITE (LEFT) SIDE.
Right Side View
PANEL
HEATER ACCESS
WALL
B
E
14"
"
7
8
4
"
16
11
4
5 3/8
B
8 3/8A9 7/829 7/8
4 5/8 16 7/8
28 3/8
C
A
Supply Opening
Return Opening
28"
C
D
12"
12"
12"
12"
4"
"
Typ.
1
8
3
"
7
8
"
7
8
2
"
7
8
12"
4"
Typ.
"
1
16
9
"
16
11
4
Manual 2100-640F
Page 9 of 32
D
16"
16"
16"
16"
16"
1
7
8
"
6
1
2
" 6
1
2
"
2
1
8
"
7
8
"
1"
3"
4"
Typ.
4"
Typ.
6
1
2
"
30"
E
16"
A CC
3
1
8
"
B
Wall Opening and Hole Location View
RETURN AIR
1
REQUIRED DIMENSIONS TO MAINTAIN
1/4" MIN. CLEARANCE FROM
COMBUSTIBLE MATERIALS
REQUIRED DIMENSIONS TO MAINTAIN
29
DUCT
COMBUSTIBLE MATERIALS
A B C DE
30 1/2
10 1/2
6 1/4 1 1/4 29 3/4
32 12 5 1/2
2
NOTES:
WALL STRUCTURE
1
SUPPLY AIR
IT IS RECOMMENDED THAT A BEAD OF
OPENING
Right Side View
RAIN FLASHING
SILICONE CAULKING BE PLACED BEHIND
RECOMMENDED 1" CLEARANCE FROM
THE SIDE MOUNTING FLANGES AND UNDER
TOP FLASHING AT TIME OF INSTALLATION.
TOP.
PANEL
HEATER ACCESS
FOUR SIDES OF SUPPLY
AIR DUCT IS REQUIRED
FROM COMBUSTABLE
WALL
1/4" CLEARANCE ON ALL
MATERIALS
Supply Opening
FOAM AIR SEAL
SUPPLIED
SEAL WITH BEAD
OF CAULKING ALONG
ENTIRE LENGTH OF
TOP
1
Return Opening
MIS-416 E
Dimension is 21" on 95" tall units.
2
Dimension is 10" on T48H1 & T60H1.
2
Dimension is 6" on T48H1 & T60H1.
3
3
FIGURE 3C
Manual 2100-640F
Page 10 of 32
Mounting Instructions
W42AA, W42LA, W48AA, W48LA
Loading...