T24H1
Bard T24H1, T30H1, T24H1D, T30H1D, T36H1 Installation Instructions Manual
...
INSTALLATION INSTRUCTIONS
WALL MOUNTED
PACKAGE HEAT PUMPS
Standard & Dehumidication
MODELS
T24H1 T24H1D
T30H1 T30H1D
T36H1 T36H1D
T42H1 T42H1D
T48H1 T48H1D
T60H1 T60H1D
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
Manual: 2100-541D
Supersedes: 2100-541C
File: Volume III Tab 17
Date: 03-28-14
Manual 2100-541D
Page 1 of 28
Contents
Getting Other Information and Publications 3
Wall Mount General Information
Wall Mount Model Nomenclature
Shipping Damage
General .................................................................4
Duct Work
Filters .................................................................5
Fresh Air Intake
Condensate Drain
Installation Instructions
Wall Mounting Information
Mounting the Unit
Placement
Clearances Required
Minimum Clearances
Wiring – Main Power
Wiring – Low Voltage Wiring
Optional Outdoor T -Stat Applications
Figures
Figure 1 Fresh Air Damper Assembly .....................5
Figure 2 Unit Dimensions .......................................7
Figure 3A Mounting Instructions T24 & 30 ...............8
Figure 3B Mounting Instructions T36, 42, 48 ............9
Figure 4 Electric Heat Clearance .........................10
Figure 5 Wall Mounting Instructions .....................11
Figure 6 Wall Mounting Instructions .....................11
Figure 7 Common Wall Mounting Installations .....12
Figure 8 Compressor Cutoff .................................14
Figure 9 Compressor Cutoff .................................14
Figure 10 Electric Heat Hold-Off Wiring .................15
Figure 11 Electric Heat Hold-Off Wiring .................15
Figure 12 Defrost Control Board ............................19
Figure 13 Fan Blade Setting ...................................22
Figure 14 Control Disassembly ..............................28
Figure 15 Winding Test ...........................................28
Figure 16 Drip Loop ................................................28
.................................................................5
.................................................................6
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.........................................................5
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...............................................13
..............................4
........................................6
...................................13
......................14
Start Up
General ...............................................................16
Topping Off System Charge
Safety Practices
Important Installer Note
High & Low Pressure Switch
Three Phase Scroll Compressor
Phase Monitor
Service Hints
Sequence of Operation
Pressure Service Ports
Defrost Cycle
Troubleshooting
Solid State Heat Pump Control
Checking Temperature Sensor
Fan Blade Setting Dimensions
Removal of Fan Shroud
R-410A Refrigerant Charge
Troubleshooting ECM Motors
Troubleshooting ECM Motors
Tables
Table 1 Clearances Required ...............................6
Table 2 Min. Clearances Required ........................6
Table 3 Troubleshooting......................................20
Table Temperature F vs. Resistance ...............21
Table 4 Fan Blade Dimension .............................22
Table 5A Cooling Pressure ....................................23
Table 5B Heating Pressure ...................................23
Table 6A Electrical Specications T**H .................24
Table 6B Electrical Specications T**H Dehum. ...25
Table 7 Indoor Blower Performance ...................26
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Manual 2100-541D
Page 2 of 28
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: (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 2100-541D
Page 3 of 28
WALL MOUNT GENERAL INFORMATION
HEAT PUMP WALL MOUNT MODEL NOMENCLATURE
T 36 H 1 – A 10 X X X X X X
MODEL
NUMBER
CAPACITY |
24 - 2 Ton
30 - 2½ Ton
36 - 3 Ton
42 - 3½ Ton
48 - 4 Ton
60 - 5 Ton
For 0 KW and circuit breakers (230/208 volt) or toggle disconnect (460V) applications, insert 0Z in the KW eld of the model number. See Pages 24 & 25.
Insert “D” for dehumidication with hot gas reheat. Reference Form 7960-627 for complete details.
H - Heat Pump
SPECIALTY PRODUCTS
(Non-Standard)
VENTILATION OPTIONS
X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
M - Motorized Fresh Air Damper
C - Commercial Ventilator - Mod. Spring Return w/Exhaust
V - Commercial Ventilator - Spring Return w/Exhaust
P - Commercial Ventilator - Power Return w/Exhaust
E - Economizer (Internal) - Fully Modulating with Exhaust
R - Energy Recovery Ventilator - Motorized with Exhaust
(See Spec. Sheet S3398)
REVISIONS
VOLTS & PHASE
A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3
KW
0Z - 0KW
04 - 4KW
05 - 5KW
06 - 6KW
F8 - 8KW
S8 - 8KW
09 - 9KW
10 -10KW
15 -15KW
20 -20KW
COLOR OPTIONS
X - Beige
1 - White
4 - Buckeye Gray
5 - Desert Brown
8 - Dark Bronze
A - Aluminum
S - Stainless Steel
FILTER OPTIONS
X - 1-Inch Fiberglass (MERV 2)
M - 2-Inch Pleated (MERV 11)
H - 2-Inch Pleated (MERV 8)
P - 2-Inch Pleated (MERV 6)
E - 24V 1" Electrostatic Air Cleaner
CONTROL MODULES
(See Spec. Sheet S3436)
COIL OPTIONS
X - Standard
1 - Phenolic Coated Evaporator
2 - Phenolic Coated Condenser
3 - Phenolic Coated Evaporator
and Condenser
OUTLET OPTIONS
X - Front (Standard)
NOTE: Vent options X, B and M are 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.
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
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 2100-541D
Page 4 of 28
DUCT WORK
FILTERS
All duct work, supply and return, must be properly sized
for the design airow 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.
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.
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 3A, 3B 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.
A 1-inch throwaway lter is standard with each
unit. The lter slides into position making it easy to
service. This lter can be serviced from the outside by
removing the lter access panel. 2-inch pleated lters
are also available as optional accessories. The internal
lter brackets are adjustable to accommodate the 2-inch
lter by bending two (2) tabs down on each side of the
lter 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, efciency and cost of operation
information is based upon the fresh air blank-off plate
in place and is recommended for maximum energy
efciency.
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.
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 sufcient 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.
FIGURE 1
FRESH AIR DAMPER
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.
Manual 2100-541D
Page 5 of 28
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 ange and the rst 3 feet
of supply air duct require a minimum of 1/4 inch
clearance to combustible material. 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 Figures 3A & 3B.
4. Mount bottom mounting bracket.
5. Hook top rain ashing, attached to front - right of
supply ange 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 rst 3 feet of duct can result in
re causing damage, injury or death.
PLACEMENT
1. 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
airow to the outdoor coil. Additional clearance
may be required to meet local or national codes.
2. Care should be taken to ensure that the recirculation
and obstruction of condenser discharge air does
not occur. Recirculation of condenser discharge
air can be from either a single unit or multiple
units. Any object such as shrubbery, a building
or a large object can cause obstructions to the
condenser discharge air. Recirculation or reduced
airow caused by obstructions will result in reduced
capacity, possible unit pressure safety lockouts and
reduced unit service life.
Units with a blow through condenser, such as the
T**H 10 EER units, it is recommended there be
a minimum distance of 15 feet between the front
of the unit and any barrier or 20 feet between the
fronts of two opposing (facing) units.
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. See Figures 3A & 3B.
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.
Clearances Required for Service Access
and Adequate Condenser Airow
MODELS LEFT SIDE RIGHT SIDE
T24H, T30H 15" 20"
T36H, T42H, T48H, T60H 20" 20"
Manual 2100-541D
Page 6 of 28
Minimum Clearances Required to
Combustible Materials
MODELS
T24H, T30H 1/4" 0"
T36H, T42H, T48H, T60H 1/4" 0"
SUPPL Y AIR DUCT
FIRST THREE FEET
CABINET
Panel
Door
Vent Option
Filter Access
Ventilation
Air
Front View
5.75
F
W
G
Condenser
Air Outlet
1
1
MIS-2729 A
Electrical
Low Voltage
Entrance
High Voltage
Electrical
Entrance
4° Pitch
Rain Hood
Built In
Access
Panel
(Lockable)
Heater
Electric
Heat
C. Breaker/
Disconnect
Access Panel
Drain
Side View
HC
K
J
I
D
2.13
A
Cond.
Air
Inlet
Electrical
Entrances
Optional
Side Wall
Mounting
Brackets
(Built In)
Location
Shipping
Return Air Opening
Supply Air Opening
Top Rain
Flashing
Bottom Installation
Bracket
Back View
M
L
O
E
R
S
S
S
S
S
T
.44
N
Q
P
B
FIGURE 2
Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)
Width
Depth
Model
(W)
T24H
38.200 17.125 70.563 7.88 27.88 13.88 27.88 40.00 10.88 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
T30H
T36H
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
T42H
T48H
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
T60H
Height
(D)
All dimensions are in inches. Dimensional drawings are not to scale.
Supply Return
(H)
A B C B E F G I J K L M N O P Q R S T
T**H
RIGHT UNIT
Manual 2100-541D
Page 7 of 28
D
12"
12"
12"
12"
12"
C CA
28"
1"
3"
4"
Typ.
4
1
2
"
B
E
14"
1"
3
1
8
"
4"
Typ.
5"
4
1
2
"
7
8
"
RETURN AIR
SUPPLIED
Return Opening
16 7/84 9/164 1/21030
17 5/83 13/165 1/48 1/228 1/2
EDCBA
COMBUSTIBLE MATERIALS
RECOMMENDED 1" CLEARANCE FROM
REQUIRED DIMENSIONS TO MAINTAIN
THE SIDE MOUNTING FLANGES AND UNDER
1/4" CLEARANCE ON ALL
RAIN FLASHING
COMBUSTIBLE MATERIALS
DUCT
TOP FLASHING AT TIME OF INSTALLATION.
1/4" MIN. CLEARANCE FROM
REQUIRED DIMENSIONS TO MAINTAIN
OPENING
ENTIRE LENGTH OF TOP.
MATERIALS
NOTES:
OF CAULKING ALONG
PANEL
FOAM AIR SEAL
FOUR SIDES OF SUPPLY
AIR DUCT IS REQUIRED
FROM COMBUSTABLE
WALL STRUCTURE
TOP
MIS-311 C
Wall Opening and Hole Location View Right Side View
WALL
HEATER ACCESS
SEAL WITH BEAD
IT IS RECOMMENDED THAT A BEAD OF
SILICONE CAULKING BE PLACED BEHIND
SUPPLY AIR
Supply Opening
W*R UNIT SHOWN, W*L UNIT
CONTROLS AND HEATER ACCESS
IS ON OPPOSITE (LEFT) SIDE.
FIGURE 3A
T24H1, T30H1
MOUNTING INSTRUCTIONS
Manual 2100-541D
Page 8 of 28
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 HoleLocationView
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 11/4 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 I NSTALLATION.
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 3B
MOUNTING INSTRUCTIONS
T36H1, T42H1, T48H1, T60H1
Manual 2100-541D
Page 9 of 28
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