START-UP Procedures Before START-UP | Raypak NH, 0133-4001 WH

LOCATION OF CONTROLS

Fig # 9335

START-UP PROCEDURES

BEFORE START-UP

Safe lighting and other performance criteria were met with the gas manifold and control assembly pro- vided on the heater when the heater underwent tests specified in the latest edition of the ANSI-Z21.10.3 Standard.

GENERAL

Before lighting up a new installation, water should be flowing through the heater.

Water pressure regulator should be set to mini- mum 25 PSI.

CAUTION:

Propane is heavier than air and sinks to the ground. Exercise extreme care in lighting heater in confined areas.

INITIAL START-UP - PUMP AND MOTOR

Many pumps are now direct-drive. They have no coupler or bearing assembly. These pumps do not require lubrication. Others require SAE-30 non-deter- gent oil to lubricate both the motor and the bearing assembly. Check pump motor for type before adding oil.

Clean dust and lint from pump and motor. Check pump coupler and tighten if necessary.

Flush system before putting into operation to en- sure that foreign material does not damage pump seals.

CAUTION:

A.Pump must be off to check oil in bearing assembly.

B.Do not run pump without water in system.

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Raypak NH, 0133-4001 WH manual START-UP Procedures Before START-UP, Initial START-UP Pump and Motor

Contents

Installation Operating Instructions For Your Safety Table of Contents Model Identification General SpecificationsReceiving Equipment ALL Models Approved HOT Water Supply Heaters General Safety Precautions Installation Instructions Installation Codes Clearances Specifications and Dimensions Model Models Models Outdoor Water Heaters High Wind Conditions Outdoor Units Only Outdoor Installations Venting Indoor Installations Before After Installation Drafthood Vent TERMINAL/INDOOR Stack Installation Vent Piping Fig. #7043.1 Vent Damper Installation Models 133 Through 261 Where Required Location Vent Damper Plumbing GeneralGAS Supply Connections GAS Pressure Regulator Venting of Diaphragm GAS Components Flow Rates General Specifications UNI-TEMP 80 HOT Water Supply Systems Piping Domestic HOT Water Supply Heaters Piping Diagrams Type WH Unitemp 80 System Type NH Instantaneous Minimum Input Adjustment Type NH Dual Models Electronic Ignition Controls GeneralRelief Valve Economaster Control High and LOW GAS Pressure Switches Optional Flow Switch100% Pilot Safety Limit Controls High Limit Component Identification Electrical Connections SINGLE-STAGE TankstatON/OFF Units 400 WH1, WH2, WH3 LOW NOx WH1 Location of Controls Fig. #9334 START-UP Procedures Before START-UP Initial START-UP Pump and Motor TIME/TEMPERATURE Relationships in Scalds Scalding To Turn OFF GAS to Appliance For Your Safety Read Before OperatingOperating Instructions For Models with Manual GAS Valves Controls Inspection Procedures BurnersAfter START-UP For Models with Automatic GAS Valves Inspection Procedures START-UP Procedures Burner AdjustmentHigh GAS Pressure Switch Visual Inspection GAS Valve Removal Burner Tray RemovalPilot Removal Main Burner and Orifice Removal Troubleshooting Electrical Honeywell S8600 Wiring 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 Action Troubleshooting Pumps Service and Maintenance ProceduresTube Cleaning Heat Exchanger Removal Pilot Removal and CleaningHigh Limit or Tankstat Removal Typical Burner Tray Illustrated Heat Exchanger RE-ASSEMBLY Control Well ReplacementTube Replacement Cleaning Flue GAS Passageways Replacement PartsCatalog Model Number Warranty Scope