FOR USE WITH WA AND WH SERIES WALL MOUNTED AIR

INSTALLATION INSTRUCTIONS
ELECTRIC HEAT PACKAGES
Models:
EHWA02-AXD EHWH02-AXD
EHWA02-AXH EHWH30-AXD
EHWA03-AXH EHWH30-AXH
EHWA03-AXK EHWH30-AXK
EHWA05-AXH EHWH36-AXD
EHWA05-AXK EHWH36-AXH
EHWH36-AXK
EHWH04-AXH
EHWH04-AXK
EHWH05-AXH
EHWH05-AXK
FOR USE WITH WA AND WH SERIES
WALL MOUNTED AIR CONDITIONERS
AND HEAT PUMPS
SEE TABLE 1 FOR MODEL USAGE
BARD MANUFACTURING COMPANY
Bryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
Manual:
Supersedes:
File:
Date:
2100-415B
2100-415A
Volume III, Tab 18
04-02-04
Copyright 2004
CONTENTS
General Information
Nomenclature ................................................... 1
Description of Equipment .................................. 1
Important .......................................................... 1
Shipping Damage ............................................. 1
Unpacking Electric Heat Package ..................... 1
Wiring Main Power ........................................... 3
Installation
Installation of Heater Package .......................... 5
Tables
Table 1 Heater Usage by Model Matrix ........... 2
Table 2 Electrical Data .................................... 4
Table 3 Terminal and Screw Mounting ............ 8
Figures
Figure 1 Electrical Connections ....................... 3
Figure 2 Installation of Heater Package .......... 6
WA24, WA30, WA36 Models and
WH24, WH30, WH36 Models
Figure 2A Installation of Heater Package ........ 7
WA42, WA48, WA60 Models and
WH42, WH48, WH60 Models
Figure 3 Rod Support and Screw Mounting ..... 8
Figure 4A - 4D Terminal Identification ............. 9
Figure 5 Wiring Directions ............................. 10
WA24, WA30, WA36 Models and
WH24, WH30, WH36 Models
Figure 5A Wiring Directions ........................... 11
WA42, WA48, WA60 Models and
WH42, WH48, WH60 Models
Figure 6 Marking Serial Plate ........................ 12
GENERAL INFORMATION
NOMENCLATURE
EHW
A
03
-
A
XD
ELECTRIC HEATER
PACKAGE
WALLMOUNT
NOMINAL KW
XD - 5 KW
XH - 10 KW
XK - 15 KW
MODELS
A - Air Conditioner
H - Heat Pump
ELECTRICAL VERSION
A - 240/208V - 1Ph
SUITABLE FOR USE IN
02 - 1-1/2 and 2 Ton Air Conditioner Models
03 - 2 1/2 and 3 Ton Air Conditioner Models
05 - 3-1/2, 4 and 5 Ton Air Conditioner Models
30 - 2-1/2 Ton Heat Pump Models
36 - 3 Ton Heat Pump Models
04 - 3-1/2 and 4 Ton Heat Pump Models
05 - 5 Ton Heat Pump Models
DESCRIPTION OF EQUIPMENT
UNPACKING ELECTRIC HEAT PACKAGE
The EHWA and EHWH series electric heater packages
are field installable heater packages suitable for use
with Bard wall mount hi boy air conditioners and heat
pumps. The packages consist of the electric heat strip,
the heater control base which includes the heat
contactors, and circuit breaker of pull disconnects,
installation instructions and wiring diagrams. See
Table 1 for nominal electrical data and BTU output.
Before installation, check unit serial plate to insure the
heater package model that you intend to install is listed
as a heater package that is suitable for use with the Bard
wall mount hi boy unit. See Figure 6.
Remove the heat package from the shipping carton.
The heat package must consist of the following:
1. Basic heater.
2. Electric heat control base and wiring.
3. Installation instructions.
4. Wiring diagram (2), one to be applied to unit.
5. Adhesive label to remark serial plate to indicate new
model number. This is attached to the front of these
instructions.
IMPORTANT
The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.
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.
Manual 2100-415
Page
1
EHWA02-AXD
X
X
X
EHWA02-AXH
X
X
X
EHWA03-AXH
X
X
X
EHWA03-AXK
X
X
X
EHWA05-AXH
X
X
X
EHWA05-AXK
X
X
X
EHWH02-AXD
X
WH602-A
WH483-A
WH421-A
WH361-A
WH301-A
WH242-A
WH184-A
WA602-A
WA484-A
WA423-A
WA372-A
WA361-A
WA302-A
WA253-A
WA242-A
WA182-A
TABLE 1
HEATER USAGE BY MODEL MATRIX
X
EHWH30-AXD
X
EHWH30-AXH
X
EHWH30-AXK
X
EHWH36-AXD
X
EHWH36-AXH
X
EHWH36-AXK
X
EHWH04-AXH
X
X
EHWH04-AXK
X
X
EHWH05-AXH
X
EHWH05-AXK
X
WARNING
Only use factory provided heaters in approved combinations of
heater models to unit models as shown on this table. Failure to
use approved combinations as shown or modification to heaters,
could result in fire causing damage, bodily injury or death.
Manual 2100-415
Page
2
WIRING MAIN POWER
1. On all installations, size unit power supply wiring
for the minimum circuit ampacity requirement for
the unit and heater package combination listed on
the unit serial plate.
For existing installations, addition or upgrading of a
heater package may require that larger supply wires
be run to the unit. Resize all power supply wires for
the minimum circuit ampacity rating listed on the
unit serial plate that is applicable for your
combination of unit and heater package.
WARNING
2. All heater packages covered by this manual are
factory wired for a single supply circuit. The
following heater packages are field convertible to a
dual supply circuit if required or desired.
EHWA05-AXK
EHWH30-AXK
EHWH04-AXK
EHWA03-AXK
EHWH36-AXK
EHWH05-AXK
3. To convert the above heater packages to dual circuit
configuration before installation, loosen 4 screws
holding jumper bar in place. Remove jumper bar.
Circuit A + B are now identified on the heater
package. See Figure 1.
Wire should be sized to the minimum circuit
ampacity as specified on the serial plates of units
that accept these heater packages for circuits A + B.
Install properly sized power supply leads for
the unit/heater combination minimum circuit
ampacity as listed on the unit serial plate.
Hazard of fire. Failure to install properly sized
conductors could result in fire.
FIGURE 1
ELECTRICAL CONNECTIONS
MIS-365
Manual 2100-415
Page
3
TABLE 2
ELECTRICAL DATA AND BTU OUTPUT
Heater Package Model
Volts
P h ase
Nominal KW
Nominal BTU
EHWA02-AXD
240/208
1
5 / 3.75
17,065 / 12,800
EHWA02-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWA03-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWA03-AXK
240/208
1
15 / 11.25
51,200 / 38,400
EHWA05-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWA05-AXK
240/208
1
15 / 11.25
51,200 / 38,400
EHWH02-AXD
240/208
1
5 / 3.75
17,065 / 12,800
EHWH30-AXD
240/208
1
5 / 3.75
17,065 / 12,800
EHWH30-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWH30-AXK
240/208
1
15 / 11.25
51,200 / 38,400
EHWH36-AXD
240/208
1
5 / 3.75
17,065 / 12,800
EHWH36-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWH36-AXK
240/208
1
15 / 11.25
51,200 / 38,400
EHWH04-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWH04-AXK
240/208
1
15 / 11.25
51,200 / 38,400
EHWH05-AXH
240/208
1
10 / 7.5
34,130 / 25,600
EHWH05-AXK
240/208
1
15 / 11.25
51,200 / 38,400
Manual 2100-415
Page
4
INSTALLATION
INSTALLATION OF HEATER PACKAGE
1. Disconnect all power to unit before installation.
WARNING
Disconnect all power to unit before installing
heater package. Hazard of electrical shock.
Failure to disconnect power could result in
injury or death.
2. Before installation, check unit serial plate to insure
that the heater package model that you intend to
install is listed as a heater package suitable for use
with the unit.
Under no circumstances shall a heater package be
installed in a unit if the model number of the heater
package does not appear on the unit serial plate.
WARNING
Install only heater packages listed on unit
serial plate. Hazard of fire or electrical shock.
Failure to install listed heater package could
result in fire, injury or death.
3. Remove electric heater access panel and control
panel cover, both inner and outer. See Figure 2 or
2A.
4. All heaters are installed with the line break limits
positioned to the top of the unit. Install heat strip(s)
through heater access opening. Position heat strip
support rod in heater support hole 1, 2, or 3 as
indicated in Table 1 and Figure 3. Secure in place
with 2 sheet metal screws in mounting holes as
indicated in Table 1 and Figure 3.
On heater packages with 2 heat strips 10KW heater
first in position closest to the outlet air frame. See
Figures 4C.
5. Install heater control base into top of control panel
as shown in Figure 5. Secure with 4 sheet metal
screws provided.
6. Plug male 6 pin connector into mating connector
mounted in control panel. See Figure 5.
7. Connect red compressor supply lead to L1 of
terminal block. Connect black compressor supply
lead to L2 of terminal block. See Figure 5 or 5A and
wiring diagram.
8. Route wires from heater control base up through
raceway or grommet in top right corner of control
panel to the heaters. See Figure 5 or 5A.
9. Wire heater package per wiring diagram supplied
with this heater package. All wires are stamped with
wire numbers that correspond with terminal
numbers on the wiring diagram and stamped
numbers on the heat strip. Limit switch wires are
terminated with insulated quick connect terminals.
See Figure 4.
10. Attach adhesive wiring diagram directly above unit
wiring diagram on inner control panel cover.
11. Recheck all wiring. Break out appropriate circuit
breaker tabs on inner control panel cover to allow
trip lever to protrude. Replace control panel and
heater access panels
12. Resupply power to the unit and check for proper
operation.
13. Remark serial plate with self-adhesive label attached
to the front of this manual. See Figure 6.
Manual 2100-415
Page
5
FIGURE 2
INSTALLATION OF HEATER PACKAGE
WA24, WA30 AND WA36 MODELS AND
WH24, WH30 AND WH36 MODELS
MIS-361
Manual 2100-415
Page
6
FIGURE 2A
INSTALLATION OF HEATER PACKAGE
WA421, WA481 AND WA601 MODELS AND
WH42, WH48 AND WH60 MODELS
MIS-419
Manual 2100-415
Page
7
TABLE 3
REFER TO FIGURES 3 AND 4
Heater Package
Model Number
Figure 4
Heater Terminal
Identification Draw ing
Figure 3
Rod Support and
Screw Mounting Position
1
EHWA02-AXD
4A
1+1
2
EHWA02-AXH
4B
1+1
3
EHWA05-AXH
4B
1+1
4
EHWA05-AXK
4C
2+2
5
EHWA03-AXH
4B
1+1
6
EHWA03-AXK
4C
2+2
7
EHWH02-AXD
4A
1+1
8
EHWH30-AXD
4A
1+1
9
EHWH30-AXH
4B
1+1
10
EHWH30-AXK
4C
2+2
11
EHWH36-AXD
4A
1+1
12
EHWH36-AXH
4B
1+1
13
EHWH36-AXK
4C
2+2
14
EHWH04-AXH
4B
1+1
15
EHWH04-AXK
4C
2+2
16
EHWH05-AXH
4B
1+1
17
EHWH05-AXK
4C
2+2
FIGURE 3
ROD SUPPORT AND
SCREW MOUNTING POSITIONS
MIS-358
Manual 2100-415
Page
8
FIGURES 4A - 4C
HEATER TERMINAL IDENTIFICATION DRAWINGS
Manual 2100-415
Page
9
FIGURE 5
WIRING DIRECTIONS
WA24, WA30 AND WA36 MODELS
WH24, WH30 AND WH36 MODELS
MIS-1741
Manual 2100-415
Page
10
FIGURE 5A
WIRING DIRECTIONS
WA42, WA48 AND WA60 MODELS
WH42, WH48 AND WH60 MODELS
MIS1742
Manual 2100-415
Page
11
Manual 2100-415
Page
12
FIGURE 6
MARKING SERIAL PLATE LABEL
MIS-1739
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