Burnham BH, BV manual IV. Operation, Prior to Operation, Initial START-UP

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IV. OPERATION

A.PRIOR TO OPERATION

1.Check all electrical connections to assure they are secure.

2.Check rigidity of unit mounting. Tighten all fasteners, if necessary.

3.Inspect piping, strainers, traps, fittings, etc.

B.INITIAL START-UP

1.Set thermostat to lowest position.

2.Turn on power supply to unit.

3.Open return gate valve, and then open supply gate valve to unit.

4.Raise thermostat setting to desired position.

5.Adjust louvers (if provided) for desired heat distribution.

6.To insure proper sequence of operation, cycle unit on and off a few times by raising and lowering thermostat setting.

7.Check for proper rotation of fan. All fans must rotate in a counterclockwise direction when viewed from the back (BH) of the unit heater.

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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 Information Wiring Instructions Unit Heater Mounting Height115V / 60Hz / 1PH Wiring Schematic Recommended Maximum Mounting Height Hot Water System PipingInitial START-UP IV. OperationPrior to Operation Maintenance Inspect RegularlyMotors CasingsVI. Application Guidelines General GuidelinesTypical BH Unit Arrangement Sound Class Ratings Large Factories, Fabrication ShopsSteam Performance Data -- Reduced Motor Speed Steam Performance DataSteam Performance Data -- High Motor Speed Given Design Conditions Selection Procedure Steam ApplicationApplication Procedure 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 FactorBtu/lb Properties of SteamGauge Temp Latent Heat 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 AnemoModel BH Dimensions VIII. Dimensional DataBH Dimensional Data Male NPT Fan Ship Model BV Dimensional DataModel BV Dimensions Motor/Power Codes Motor/Power Description CodeIX. Motor Data Voltage and Motor TypeLimited Warranty