Sterling RF-90, RF-60, RF-75, RF-45, RF-30 specifications Installation

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INSTALLATION (continued)

The Unit Heater may be mounted by fastening the hanging brackets directly to ceiling joists or by suspending from four rods. See Figures 3, 4 and 5.

Make certain that the lifting methods used to lift the heater and the method of suspen- sion used in the field installation of the heater are capable of uniformly supporting the weight of the heater at all times. Failure to heed this warning may result in property damage or personal injury!

Make sure that the structure to which the unit heater is to be mounted is capable of safely supporting its weight. Under no circumstances must the gas lines, the venting system or the electrical conduit be used to support the heater; or should any other objects (i.e. ladder, person) lean against the heater gas lines, venting system or the electrical conduit for support. Failure to heed these warnings may result in property damage, personal injury, or death.

Unit Heaters must be hung level from side to side and from front to back, see Figures 3, 4 and 5. Failure to do so will result in poor performance and/or premature failure of the unit.

Ensure that all hardware used in the suspension of each unit heater is more than adequate for the job. Failure to do so may result in extensive prop- erty damage, severe personal injury, or death!

Refer to Figures 3, 4 and 5 for suspension of units.

Figure 3 - Hanger Bracket Installation Instructions

Figure 4 - Heater Mounting (Steel Construction)

Figure 5 - Heater Mounting (Wood Construction)

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Contents Tubular GAS Fired Direct Spark Propeller Unit Heaters Receiving InstructionsTable of Contents DescriptionGeneral Safety Information Dimensional Drawing Tubular 30 thru 90 Propeller Unit Heater Installation Installation GAS Piping Pipe SizingGas Pipe Size Pipe Installation Gas Piping RequirementsThermostat Wiring and Location Electrical ConnectionsElectrical Connections Additional Requirements for Canadian Installations VentingVenting into an unlined masonry chimney is prohibited Not apply to equipment specified Vertically Vented Unit Heaters CategoryVenting Categories Within this manualVent Systems Termination Clearance Requirements Structure Category I Horizontal Venting Requirements Vent Maximum Number Maximum Horizontal Minimum ExtensionVent Support Horizontally Vented Unit Heaters Category Type B Draft Hood Connector Venting Venting Determine and Correct the Cause of the flame roll-out OperationExplanation of Controls See Figure Shut DownMain Burner Orifice Schedule Primary AIR Shutter AdjustmentGAS Input Rate Tubular Unit Heater High Altitude DerationPeriodic Service Never over oil the motor or premature failure may occurTubular Propeller Troubleshooting Guide Symptoms Possible Causes Corrective ActionRealign power ventor wheel Check for continuous 115v on terminal Troubleshooting with LED Indicator Assistance LED Status Indicates CHECK/REPAIRItemDescription Propeller Parts HOW to Order Replacement Parts PRE-INSPECTION Information With power and gas offWith power and gas on General