FOR USE WITH WA AND WH SERIES
WALL MOUNTED AIR CONDITIONERSAND HEAT PUMPS
SEE TABLE 1 FOR MODEL USAGE
Models:
EHWA02-AXD EHWH02-AXDEHWA02-AXH EHWH30-AXDEHWA03-AXH EHWH30-AXHEHWA03-AXK EHWH30-AXKEHWA05-AXH EHWH36-AXDEHWA05-AXK EHWH36-AXH
EHWH36-AXKEHWH04-AXHEHWH04-AXKEHWH05-AXHEHWH05-AXK
INSTALLATION INSTRUCTIONS
ELECTRIC HEAT PACKAGES
BARD MANUFACTURING COMPANYBryan, Ohio 43506
Since 1914...Moving ahead, just as planned.
Manual: 2100-415BSupersedes: 2100-415AFile: Volume III, Tab 18Date: 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 .......... 6WA24, WA30, WA36 Models andWH24, 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 ............................. 10WA24, WA30, WA36 Models andWH24, WH30, WH36 Models
Figure 5A Wiring Directions ........................... 11 WA42, WA48, WA60 Models and WH42, WH48, WH60 Models
Figure 6 Marking Serial Plate ........................ 12
Manual 2100-415Page 1
GENERAL INFORMATION
NOMENCLATURE EHW A 03 - A XD
DESCRIPTION OF EQUIPMENTThe EHWA and EHWH series electric heater packagesare field installable heater packages suitable for usewith Bard wall mount hi boy air conditioners and heatpumps. The packages consist of the electric heat strip,the heater control base which includes the heatcontactors, and circuit breaker of pull disconnects,installation instructions and wiring diagrams. SeeTable 1 for nominal electrical data and BTU output.Before installation, check unit serial plate to insure theheater package model that you intend to install is listedas a heater package that is suitable for use with the Bardwall mount hi boy unit. See Figure 6.
IMPORTANTThe equipment covered in this manual is to be installedby trained, experienced service and installationtechnicians.
SHIPPING DAMAGEUpon receipt of equipment, the carton should bechecked for external signs of shipping damage. Ifdamage is found, the receiving party must contact thelast carrier immediately, preferably in writing,requesting inspection by the carrier’s agent.
UNPACKING ELECTRIC HEAT PACKAGERemove 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 newmodel number. This is attached to the front of theseinstructions.
ELECTRIC HEATERPACKAGEWALLMOUNT
NOMINAL KWXD - 5 KWXH - 10 KWXK - 15 KW
MODELSA - Air ConditionerH - Heat Pump
SUITABLE FOR USE IN02 - 1-1/2 and 2 Ton Air Conditioner Models03 - 2 1/2 and 3 Ton Air Conditioner Models05 - 3-1/2, 4 and 5 Ton Air Conditioner Models30 - 2-1/2 Ton Heat Pump Models36 - 3 Ton Heat Pump Models04 - 3-1/2 and 4 Ton Heat Pump Models05 - 5 Ton Heat Pump Models
ELECTRICAL VERSIONA - 240/208V - 1Ph
Manual 2100-415Page 2
TABLE 1HEATER USAGE BY MODEL MATRIX
WARNINGOnly use factory provided heaters in approved combinations ofheater models to unit models as shown on this table. Failure touse approved combinations as shown or modification to heaters,could result in fire causing damage, bodily injury or death.
DXA-20AWHE X X XHXA-20AWHE X X XHXA-30AWHE X X XKXA-30AWHE X X XHXA-50AWHE X X XKXA-50AWHE X X XDXA-20HWHE X XDXA-03HWHE XHXA-03HWHE XKXA-03HWHE XDXA-63HWHE XHXA-63HWHE XKXA-63HWHE XHXA-40HWHE X XKXA-40HWHE X XHXA-50HWHE XKXA-50HWHE X
WA
182-
A
WA
242-
A
WA
253-
A
WA
302-
A
WA
361-
A
WA
372-
A
WA
423-
A
WA
484-
A
WA
602-
A
WH
184-
A
WH
242-
A
WH
301-
A
WH
361-
A
WH
421-
A
WH
483-
A
WH
602-
A
Manual 2100-415Page 3
WIRING MAIN POWER 1. On all installations, size unit power supply wiring
for the minimum circuit ampacity requirement forthe unit and heater package combination listed onthe unit serial plate.
For existing installations, addition or upgrading of aheater package may require that larger supply wiresbe run to the unit. Resize all power supply wires forthe minimum circuit ampacity rating listed on theunit serial plate that is applicable for yourcombination of unit and heater package.
2. All heater packages covered by this manual arefactory wired for a single supply circuit. Thefollowing heater packages are field convertible to adual supply circuit if required or desired.
EHWA05-AXK EHWA03-AXKEHWH30-AXK EHWH36-AXKEHWH04-AXK EHWH05-AXK
3. To convert the above heater packages to dual circuitconfiguration before installation, loosen 4 screwsholding jumper bar in place. Remove jumper bar.Circuit A + B are now identified on the heaterpackage. See Figure 1.
Wire should be sized to the minimum circuitampacity as specified on the serial plates of unitsthat accept these heater packages for circuits A + B.
MIS-365
FIGURE 1ELECTRICAL CONNECTIONS
WARNINGInstall properly sized power supply leads forthe unit/heater combination minimum circuitampacity as listed on the unit serial plate.Hazard of fire. Failure to install properly sizedconductors could result in fire.
Manual 2100-415Page 4
TABLE 2ELECTRICAL DATA AND BTU OUTPUT
ledoMegakcaPretaeH stloV esahP WKlanimoN UTBlanimoN
DXA-20AWHE 802/042 1 /5 57.3 /560,71 008,21
HXA-20AWHE 802/042 1 /01 5.7 /031,43 006,52
HXA-30AWHE 802/042 1 /01 5.7 /031,43 006,52
KXA-30AWHE 802/042 1 /51 52.11 /002,15 004,83
HXA-50AWHE 802/042 1 /01 5.7 /031,43 006,52
KXA-50AWHE 802/042 1 /51 52.11 /002,15 004,83
DXA-20HWHE 802/042 1 /5 57.3 /560,71 008,21
DXA-03HWHE 802/042 1 /5 57.3 /560,71 008,21
HXA-03HWHE 802/042 1 /01 5.7 /031,43 006,52
KXA-03HWHE 802/042 1 /51 52.11 /002,15 004,83
DXA-63HWHE 802/042 1 /5 57.3 /560,71 008,21
HXA-63HWHE 802/042 1 /01 5.7 /031,43 006,52
KXA-63HWHE 802/042 1 /51 52.11 /002,15 004,83
HXA-40HWHE 802/042 1 /01 5.7 /031,43 006,52
KXA-40HWHE 802/042 1 /51 52.11 /002,15 004,83
HXA-50HWHE 802/042 1 /01 5.7 /031,43 006,52
KXA-50HWHE 802/042 1 /51 52.11 /002,15 004,83
Manual 2100-415Page 5
INSTALLATION
2. Before installation, check unit serial plate to insurethat the heater package model that you intend toinstall is listed as a heater package suitable for usewith the unit.
Under no circumstances shall a heater package beinstalled in a unit if the model number of the heaterpackage does not appear on the unit serial plate.
On heater packages with 2 heat strips 10KW heaterfirst in position closest to the outlet air frame. SeeFigures 4C.
5. Install heater control base into top of control panelas shown in Figure 5. Secure with 4 sheet metalscrews provided.
6. Plug male 6 pin connector into mating connectormounted in control panel. See Figure 5.
7. Connect red compressor supply lead to L1 ofterminal block. Connect black compressor supplylead to L2 of terminal block. See Figure 5 or 5A andwiring diagram.
8. Route wires from heater control base up throughraceway or grommet in top right corner of controlpanel to the heaters. See Figure 5 or 5A.
9. Wire heater package per wiring diagram suppliedwith this heater package. All wires are stamped withwire numbers that correspond with terminalnumbers on the wiring diagram and stampednumbers on the heat strip. Limit switch wires areterminated with insulated quick connect terminals.See Figure 4.
10. Attach adhesive wiring diagram directly above unitwiring diagram on inner control panel cover.
11. Recheck all wiring. Break out appropriate circuitbreaker tabs on inner control panel cover to allowtrip lever to protrude. Replace control panel andheater access panels
12. Resupply power to the unit and check for properoperation.
13. Remark serial plate with self-adhesive label attachedto the front of this manual. See Figure 6.
3. Remove electric heater access panel and controlpanel cover, both inner and outer. See Figure 2 or2A.
4. All heaters are installed with the line break limitspositioned to the top of the unit. Install heat strip(s)through heater access opening. Position heat stripsupport rod in heater support hole 1, 2, or 3 asindicated in Table 1 and Figure 3. Secure in placewith 2 sheet metal screws in mounting holes asindicated in Table 1 and Figure 3.
INSTALLATION OF HEATER PACKAGE 1. Disconnect all power to unit before installation.
WARNINGDisconnect all power to unit before installingheater package. Hazard of electrical shock.Failure to disconnect power could result ininjury or death.
WARNINGInstall only heater packages listed on unitserial plate. Hazard of fire or electrical shock.Failure to install listed heater package couldresult in fire, injury or death.
Manual 2100-415Page 6
FIGURE 2INSTALLATION OF HEATER PACKAGEWA24, WA30 AND WA36 MODELS AND
WH24, WH30 AND WH36 MODELS
MIS-361
Manual 2100-415Page 7
FIGURE 2AINSTALLATION OF HEATER PACKAGE
WA421, WA481 AND WA601 MODELS ANDWH42, WH48 AND WH60 MODELS
MIS-419
Manual 2100-415Page 8
MIS-358
FIGURE 3ROD SUPPORT AND
SCREW MOUNTING POSITIONS
TABLE 3REFER TO FIGURES 3 AND 4
egakcaPretaeHrebmuNledoM
4erugiFlanimreTretaeHgniwarDnoitacifitnedI
3erugiFdnatroppuSdoR
noitisoPgnitnuoMwercS
1 DXA-20AWHE A4 1+1
2 HXA-20AWHE B4 1+1
3 HXA-50AWHE B4 1+1
4 KXA-50AWHE C4 2+2
5 HXA-30AWHE B4 1+1
6 KXA-30AWHE C4 2+2
7 DXA-20HWHE A4 1+1
8 DXA-03HWHE A4 1+1
9 HXA-03HWHE B4 1+1
01 KXA-03HWHE C4 2+2
11 DXA-63HWHE A4 1+1
21 HXA-63HWHE B4 1+1
31 KXA-63HWHE C4 2+2
41 HXA-40HWHE B4 1+1
51 KXA-40HWHE C4 2+2
61 HXA-50HWHE B4 1+1
71 KXA-50HWHE C4 2+2
Manual 2100-415Page 9
FIGURES 4A - 4CHEATER TERMINAL IDENTIFICATION DRAWINGS
Manual 2100-415Page 10
FIGURE 5WIRING DIRECTIONS
WA24, WA30 AND WA36 MODELSWH24, WH30 AND WH36 MODELS
MIS-1741
Manual 2100-415Page 11
FIGURE 5AWIRING DIRECTIONS
WA42, WA48 AND WA60 MODELSWH42, WH48 AND WH60 MODELS
MIS-1742
Manual 2100-415
Page 12
FIGURE 6MARKING SERIAL PLATE LABEL
MIS-1739