Burnham BH, BV manual II. General Information, III. Installation

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II. GENERAL INFORMATION

A.INSTALLATION LIMITATIONS

Installation and service instructions in this manual are applicable to the steam/hot water unit heaters which should be installed in their proper applications for their most effective function as overhead heating units. The copper coils are warranted for operation at steam or hot water pressures up to 150 psig, and/or temperatures up to 375°F. Canadian Standards Association (CSA) requirements state that explosion-proof units may not be used with a fluid temperature in excess of 329°F and still maintain their explosion-proof rating, for national electric code ignition temperature rating T3B for grain dust.

B.INSPECTION ON ARRIVAL

1.Inspect unit upon arrival. In case of damage, report immediately to transportation company and your local Burnham Hydronics Representative.

WARNING

DO NOT REMOVE OUTLET FAN GUARD FROM MODEL BV UNITS.

2.Check rating plate on unit and motor to verify that power input and motor specification meet available electric power at point of installation.

3.Inspect unit received for conformance with description of product ordered (including specifications where applicable).

III. INSTALLATION

A.SPECIAL PRECAUTIONS

1.Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage. All units must be wired strictly in accordance with wiring diagram furnished with unit.

2.Units should not be installed in atmospheres where corrosive fumes or sprays are present.

3.Units must not be installed in potentially explosive or flammable atmospheres.

4.Be sure no obstructions block air intake or air discharge of unit heater.

5.Do not install unit above recommended maximum mounting heights (see Table 1) or below the minimum height of eight feet.

B.UNIT SUSPENSION

Horizontal Delivery Units, Model BH Series

All horizontal delivery units have two tapped holes (3/8”-16) in the top for unit suspension. Piping support hangers or clamps are recommended and should be placed as close to the unit heater as possible. For other models, independent suspension can be made with threaded rods, pipes, or ceiling hanger brackets.

Figure 1: Horizontal Air Delivery

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Contents BH and BV Unit Heaters 8144A001R4-2/07Table of Contents Important Information Read Carefully Before Installation III. Installation II. General InformationWiring Instructions Unit Heater Mounting Height115V / 60Hz / 1PH Wiring Schematic Recommended Maximum Mounting Height Hot Water System PipingPrior to Operation IV. OperationInitial START-UP Maintenance Inspect RegularlyMotors CasingsVI. Application Guidelines General GuidelinesTypical BH Unit Arrangement Sound Class Ratings Large Factories, Fabrication ShopsSteam Performance Data -- High Motor Speed Steam Performance DataSteam Performance Data -- Reduced Motor Speed Application Procedure Selection Procedure Steam ApplicationGiven Design Conditions Steam Calculation Formulas Fata = Eata + AtraSteam Correction Factors Steam Heating Capacity Conversion FactorsUnit Entering Heater Air Temp Types 100 125 150Air Temperature Rise Conversion Factors Steam Unit Heater Mounting Height Correction FactorsSteam Pressure Psig Correction FactorGauge Temp Latent Heat Properties of SteamBtu/lb Hot Water Performance Data -- High Motor Speed Hot Water Performance Data -- Reduced Motor SpeedSelection Procedure HOT Water Application Water TemperatureWater Flow Rate 125,020 Btu/hr Final AirHOT Water Calculation Formulas BtuAG = BtuS or BtuA x Glycol Correction FactorHOT Water Correction Factors Hot Water Heating Capacity Conversion FactorsEthylene Glycol Correction Factors Hot Water Unit Heater Mounting Height Correction FactorsVII. OPTIONS, Accessories and Control Sequences Field Installed Options for Horizontal and Vertical ModelsField Installed Options for Horizontal Models only Control SequencesField Installed Options for Vertical Models only DescriptionVertical Air Outlet Accessory Dimensions Vertical Air Outlet Accessory Maximum Height and Spread123 Cone-JetLou Truncone No Deflector AnemoBH Dimensional Data VIII. Dimensional DataModel BH Dimensions Model BV Dimensions BV Dimensional DataMale NPT Fan Ship Model Motor/Power Codes Motor/Power Description CodeIX. Motor Data Voltage and Motor TypeLimited Warranty
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