Raypak NH, 0133-4001 WH manual Clearances

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CLEARANCES

INSTALLATION CLEARANCES

(All Dimensions Are In Inches)

CLEARANCES FROM COMBUSTIBLE

SURFACES

Note 1:

Combustible floor shield is required when heater is to be installed on a combustible surface. (See ordering info. on pg.5.)

Note 2:

Servicing Clearances: Provide at least 24" (Models 0133-1826), 48" (Models 2100-4001) in front of unit for removal & servicing of the Controls & Burner Tray. Provide at least 18" on side opposite water connec- tions for deliming of Heat Exchanger Tubes.

*Vent includes factory supplied drafthoods and does not include field supplied vent systems above the drafthood. On Models 2100-4001 drafthood is built into heater.

CLEARANCES TO PROTECTED SURFACES

Note: The heater shall be installed in a space large in comparison to the size of the heater. Large space is defined as having a volume at least sixteen (16) times the total volume of the heater.

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Contents Installation Operating Instructions For Your SafetyTable of Contents Model Identification General SpecificationsReceiving Equipment ALL Models Approved HOT Water Supply HeatersGeneral Safety Precautions Installation Instructions Installation CodesClearances Specifications and Dimensions ModelModels Models Outdoor Water Heaters High Wind Conditions Outdoor Units OnlyOutdoor Installations VentingIndoor Installations Before After Installation DrafthoodVent TERMINAL/INDOOR Stack Installation Vent Piping Fig. #7043.1Vent Damper Installation Models 133 Through 261 Where Required LocationVent Damper Plumbing GeneralGAS Supply Connections GAS Pressure Regulator Venting of Diaphragm GAS ComponentsFlow Rates General Specifications UNI-TEMP 80 HOT Water Supply Systems Piping Domestic HOT Water Supply HeatersPiping Diagrams Type WH Unitemp 80 System Type NH Instantaneous Minimum Input Adjustment Type NH Dual ModelsElectronic Ignition Controls GeneralRelief Valve Economaster ControlHigh and LOW GAS Pressure Switches Optional Flow Switch100% Pilot Safety Limit Controls High LimitComponent Identification Electrical Connections SINGLE-STAGE TankstatON/OFF Units 400 WH1, WH2, WH3 LOW NOx WH1 Location of ControlsFig. #9334 START-UP Procedures Before START-UP Initial START-UP Pump and MotorTIME/TEMPERATURE Relationships in Scalds ScaldingTo Turn OFF GAS to Appliance For Your Safety Read Before OperatingOperating Instructions For Models with Manual GAS ValvesControls Inspection Procedures BurnersAfter START-UP For Models with Automatic GAS ValvesInspection Procedures START-UP Procedures Burner AdjustmentHigh GAS Pressure Switch Visual InspectionGAS Valve Removal Burner Tray RemovalPilot Removal Main Burner and Orifice RemovalTroubleshooting Electrical Honeywell S8600Wiring Diagrams Wiring Diagram WH2 182/260 Wiring Diagram WH2 330/400 Wiring Diagram WH2 514/624 Wiring Diagram WH2 Wiring Diagram WH2 Wiring Diagram WH2 Wiring Diagram WH2 Wiring Diagram WH1 181/261 LOW NOx Wiring Diagram WH1 331/401 LOW NOx Troubleshooting Mechanical Problem Possible Cause Corrective ActionTroubleshooting Pumps Service and Maintenance ProceduresTube Cleaning Heat Exchanger Removal Pilot Removal and CleaningHigh Limit or Tankstat Removal Typical Burner Tray IllustratedHeat Exchanger RE-ASSEMBLY Control Well ReplacementTube Replacement Cleaning Flue GAS Passageways Replacement PartsCatalog Model Number Warranty Scope