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INSTALLATION
INSTRUCTIONS
READ ALL INSTRUCTIONS CAREFULLY BEFORE
BEGINNING THE INSTALLATION.
THE INSTALLATION MUST COMPLY WITH THESE
INSTRUCTIONS AND THE REQUIREMENTS OF ALL
GOVERNING CODES AND ORDINANCES FOR THE
INSTALLATION LOCATION.
IT IS THE RESPONSIBILITY OF INSTALLER TO KNOW
AND UNDERSTAND ALL OF THESE REQUIREMENTS.
FAILURE TO DO SO COULD CREATE A HAZARD
RESULTING IN PROPERTY DAMAGE, BODILY INJURY,
OR DEATH.
WF0501-A, -K
WF1001-A, -K
WARNING
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
Since 1914...Moving ahead just as planned.
WF - SERIES
WALL FURNACE
MODELS:
WF0751-A, -K
WF1251-A, -K
Manual No.:
Supersedes:
File:
Date:
2100-486D
2100-486C
Volume III, Tab 20
11-15-10
Manual 2100-486D
Page
1 of 37
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Summary of Contents for Bard WF0501-A
- Page 1 IT IS THE RESPONSIBILITY OF INSTALLER TO KNOW AND UNDERSTAND ALL OF THESE REQUIREMENTS. FAILURE TO DO SO COULD CREATE A HAZARD RESULTING IN PROPERTY DAMAGE, BODILY INJURY, OR DEATH. Bard Manufacturing Company, Inc. Manual No.: 2100-486D Supersedes: 2100-486C Bryan, Ohio 43506...
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Page 2: Table Of Contents
CONTENTS Page Page 16. Thermostats ............18 Getting Other Information and Publications ....4 WF Series Model Nomenclature ....... 5 17. Gas Supply & Piping ........21 18. Manifold Pressure Adjustment ......22 Ventilation Options ............ 5 19. Checking Gas Input Rate ......22 & 23 WF Series Wall Furnace: 1. - Page 3 CONTENTS Page Page FIGURES TABLES Figure 1 Unit Dimensions ........7 Table 1 Specifications – WF Models ..... 6 Figure 2 Mounting Instructions ......10 Table 2 Minimum Installation Clearances ... 14 Figure 3 Combustible Clearance ......11 Table 3 Thermostat Wire Size ......
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Page 4: Getting Other Information And Publications
Getting Other Information and Publications FOR MORE INFORMATION, CONTACT These publications can help you install the furnace. You THESE PUBLISHERS: can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard. ACCA Air Conditioning Contractors of America 1712 New Hampshire Avenue, NW... -
Page 5: Wf Series Model Nomenclature
WALL MOUNT GAS/ELECTRIC GENERAL MODEL NUMBER NOMENCLATURE OUTLET OPTIONS MODEL SERIES REVISION X = Front (Standard) CODE EMISSIONS T = Top X - Standard HEATING N - NOx Certified* INPUT BTUH COLOR OPTIONS 050 - 50,000 X - Beige (Standard) 075 - 75,000 VENT OPTIONS VOLTS &... -
Page 6: Important
CAUTION During the initial firing of the burners there will probably be some amount of smoke issued to the circulating air stream as the result of residual oil burning off of the heat exchanger tubes. This oil is required during the forming process of the stainless steel heat exchanger tubes to facilitate the bending. -
Page 7: Figure 1 Unit Dimensions
Manual 2100-486D Page 7 of 37... -
Page 8: High Altitude Applications
Any grille that meets with the 5/8 inch louver criteria on heat loss/heat gain calculations made according to may be used. It is recommended that Bard Return Air methods of Air Conditioning Contractors of America Grille or Return Filter Grille be installed when no (ACCA). -
Page 9: Wall Mounting
7. WALL MOUNTING INFORMATION WARNING 1. Two holes for the supply and return air openings must be cut through the wall as detailed in Figure 4. Failure to provide the one inch clearance 2. On wood-frame walls, the wall construction between the supply duct and a combustible must be strong and rigid enough to carry the surface for the first three feet of duct can... -
Page 10: Figure 2 Mounting Instructions
Manual 2100-486D Page 10 of 37... -
Page 11: Figure 3 Combustible Clearance
FIGURE 3 COMBUSTIBLE CLEARANCE FOR WF MODELS WARNING A minimum of one (1) inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first three (3) feet of ducting. It is important to insure that the one (1) inch minimum spacing is maintained at all points. Failure to do this could result in overheating the combustible material and may result in a fire causing damage, injury or death. -
Page 12: Figure 4 Wall Mounting Instructions
FIGURE 4 WALL MOUNTING INSTRUCTIONS FIGURE 5 WALL MOUNTING INSTRUCTIONS Manual 2100-486D Page 12 of 37... -
Page 13: Figure 6 Common Wall Mounting Installations
FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-486D Page 13 of 37... -
Page 14: Clearances
9. CLEARANCES TABLE 2 MINIMUM INSTALLATION CLEARANCES Minimum clearances, as specified in Table 2, must be maintained from adjacent structures to provide t e l ) s l r i f adequate fire protection, adequate combustion air, and ) s l room for service personnel. -
Page 15: Vent Terminal And Combustion Inlet Hood
11. OPTIONAL VERTICAL VENTING 10. VENT TERMINAL AND COMBUSTION AIR INLET HOOD With the optional vertical venting kit (VVK-5A) this The vent terminal is shipped in the burner unit may be vented vertically through a roof or overhang. The kit includes a stainless steel transition compartment. -
Page 16: Vent Resizing Instructions
12. VENT RESIZING INSTRUCTIONS 13. FRESH AIR INTAKE All units are built with fresh air inlet slots punched in When an existing furnace is removed from a venting the service panel. system servicing other appliances, the venting system is likely to be too large to properly vent the remaining If the unit is equipped with a fresh air damper attached appliances. -
Page 17: Wiring - Main Power
14. WIRING – MAIN POWER ELECTRICAL GROUNDING When installed, the furnace must be electrically grounded in accordance with local codes or in the WARNING absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or Canadian Electrical Code, CSA22.1, latest edition. Use a copper wire from green ground wire on the furnace to a grounded connection in For your personal safety, turn off electric the service panel or a properly driven and electrically... -
Page 18: Wiring - Low Voltage Wiring
FIGURE 10 INSTALLATION OF FLEXIBLE CONDUIT CONDUIT RETURN AIR OPENING ENTRANCE PANEL LOWER BACK CONDUIT ACCESS PANEL MIS-2378 15. WIRING – LOW VOLTAGE WIRING 16. THERMOSTATS Low Voltage Connection TABLE 3 These units use a 24-volt AC low voltage circuit. THERMOSTAT WIRE SIZE The “R”... -
Page 19: Figure 11 Low Voltage Wiring
FIGURE 11 LOW VOLTAGE WIRING Manual 2100-486D Page 19 of 37... -
Page 20: Figure 12 Gas Pipe Connection
FIGURE 12 GAS PIPE CONNECTION Manual 2100-486D Page 20 of 37... -
Page 21: Gas Supply & Piping
17. GAS SUPPLY AND PIPING 8. Refer to Table 6 for Gas Pipe Sizes for natural gas. If more than one appliance is supplied from a single line size, capacity must equal or exceed the GENERAL RECOMMENDATIONS combined input to all appliances, and the branch 1. -
Page 22: Manifold Pressure Adjustment
5. Slowly open equipment shut off valve in gas supply PROPANE (LP) GAS CONVERSION line just ahead of furnace. Start furnace following “Operating Instructions” on front door. This unit may be converted in the field for 6. Slowly open 1/8" NPT manual shut off valve leading use with Propane (LP) gas. - Page 23 NATURAL GAS INPUT RATE 9. If you left water heater, dryer or range pilots on, allow for them in calculating correct furnace gas Natural gas heating value (BTU/cu. ft.) can vary input. A quick way is to allow 1,000 BTU per hour significantly.
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Page 24: Standard Orifice Sizing & High Altitude Derate
20. STANDARD ORIFICE SIZING AND It is the installer’s responsibility to see that the furnace HIGH ALTITUDE DERATE input rate is adjusted properly. Derating must be achieved by reducing the size of the main burner This furnace is shipped with fixed gas orifices for use orifices. -
Page 25: Table 8 Natural Gas Orifice - Wf050-125
TABLE 8 NATURAL GAS ORIFICE TABLES FOR MODELS WF050 – WF125 f i r f i r c t i i t l f i r f i r f i r f i r i t l c t i f i r f i r , y r... -
Page 26: Conversion Of Gas Input Btuh From High To Low Rating
21. CONVERSION OF GAS INPUT BTUH 2. Set balancing dampers in supply duct system. FROM HIGH TO LOW RATING 3. Check duct work for obstructions or leaks. All the derated WF series units are produced with 4. Make sure filters are clean and in place. maximum BTUH input orifices installed. -
Page 27: Filters
FIGURE 14 ACCESS INTERNAL FILTER THROUGH UPPER SERVICE DOOR FRONT DOOR REAR EXHAUST FILL PLATE FRONT EXHAUST FILL PLATE FILTER SCREW MIS-2345 23. FILTERS A 2" thick throwaway filter is supplied with each unit. This filter is installed by opening the main service door. (See Figure 14.) Replacement filters are available through your dealer. -
Page 28: Lighting & Shutdown Instructions
24. LIGHTING AND SHUTDOWN INSTRUCTIONS FIGURE 15 INSTRUCTION LABEL Manual 2100-486D Page 28 of 37... -
Page 29: Service Agency Procedures
FIGURE 16 25. SERVICE AGENCY PROCEDURES TOP VIEW OF GAS CONTROL CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. WARNING Follow these procedures before inspecting MIS-165 furnace. -
Page 30: Replacement Parts
ROUTINE MAINTENANCE WARNING 1. Air Filters – Check the condition at least monthly when the unit is in use, and replace as necessary. 2. Lubrication Requirements – The indoor circulating Disconnect electrical power before servicing unit. Failure to do so could result in electrical air blower motor is permanently lubricated and shock or death. -
Page 31: Sequence Of Operation - Heating
28. SEQUENCE OF OPERATION – This unit is equipped with a flame roll-out switch, HEATING which is wired in series with the control circuit. This is a manual reset switch and is used for the purpose of On a call for heat from the thermostat, the induced draft preventing possible fire hazard in the event of a system blower is energized. -
Page 32: Table 10 Integrated Furnace & Blower Control Operation
TABLE 10 INTEGRATED FURNACE AND BLOWER CONTROL OPERATION t i n o " ) " t n I r t - c t i t i n t i n t i n i t l a l f t i n t i n i t ( t i n... -
Page 33: Low Nox Burner Assembly "N" Suffix Models Only - U.s. Installations Only
30. LOW-NOX BURNER ASSEMBLY “N” IMPORTANT SUFFIX MODELS ONLY – U.S. INSTALLATIONS ONLY For propane (LP) conversions the NOx NATURAL GAS MODELS ONLY reduction screen inserts shown below must be removed. This is accomplished by Model numbers designated with an “N” are designed removing the burner box assembly and for low NOx emissions which comply with all removing the NOx screens. -
Page 34: Wiring Diagrams
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