Installation, Equipment Base, Stacking | Raypak 992B-1262B guide

The temperature of the water in the heater can be reg- ulated by using the temperature controller. To comply with safety regulations, the temperature controller is set at the lowest setting when shipped from the facto- ry.

To adjust the water temperature, insert a small straight screwdriver into the adjustment screw on the front of temperature controller and turn the wheel to the desired setting (See Fig. 4.).

Fig. 4: Temperature Controller

INSTALLATIONCAUTION: Hotter water increases the risk of scald- ing! There is a hot water scald potential if the

thermostat is set too high.

INSTALLATION

Equipment Base

The heater should be mounted on a level, structurally sound surface. The heater is approved for installation on a combustible surface but must NEVER be installed on carpeting. Gas-fueled equipment installed in enclosed parking garages must be located at least 18 in. above the floor.

Stacking

Hi Delta units can be stacked two units high with an optional stacking rack. A seismic-certified stacking kit is available from Raypak for this type of installation.

CAUTION: The heaters should be located in an area where water leakage will not result in damage to the area adjacent to the appliances or to the structure. When such locations cannot be avoided, it is recommended that a suitable catch pan, adequately drained, be installed under the appliance. The pan must not restrict air flow.

Installation Codes

Installations must follow these codes:

•Local, state, provincial, and national codes, laws, regulations and ordinances

• National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edition (NFGC)

•National Electrical Code, ANSI/NFPA 70 - latest edition (NEC)

•Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1, when required (CSD-1)

•For Canada only: CAN/CGA B149 Installation Code (B149) and CSA C22.1 C.E.C. Part 1 (C22.1)

Fig. 5: Typical Stacked Installation

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Raypak 992B-1262B manual Equipment Base, Stacking, Installation Codes

Contents

Installation & Operating Instructions Page Contents Pay Attention to These Terms Installations at Elevation Before InstallationProduct Receipt Model Identification Component Locations Back Component Locations Model Quantity Vent Size Gas Burners Blowers General InformationValves Model Burners per Valve Stages Fire at Stage General Safety Time/Temperature Relationships in ScaldsWater Time to Produce Serious Temp Burn Installation Codes InstallationEquipment Base Stacking Table D Vent/Air Inlet Termination Clearances Indoor Installations Outdoor InstallationsClearances Indoor Units Combustion and Ventilation AirReversing Air Filter Direct Vent Conventional Combustion Air Supply InstallationsTruSeal Combustion Air All Air from Inside the Building Water Piping Canadian InstallationsGeneral Reversing Water Connections Cold Water Operation Relief Valve Piping Hydrostatic Test Temperature & Pressure Gauge Hydronic HeatingPump Selection Piping Pressure Drop in Feet of Head Feedwater RegulatorAir-Separation/Expansion Tank Three-Way Valves Pool Heating Potable Water and Space Heating Winterizing Your Heater Automatic Chlorinators and Chemical Feeders Pool/Spa Water Chemistry Water Hardness Gas SupplyPH of Water Total Dissolved Solids Reversing Gas Supply Connection Gas Supply ConnectionModel Table I Maximum Equivalent Pipe Length Check the Power Source Electrical Power ConnectionsGas Supply Pressure Field-Connected Controllers Making the Electrical Connections Field Wiring Connection On-Off Wiring Connections Flue Exhaust Tee VentingModel Diameter Order Number Appliance Categories Vent Terminal Location Support of Vent StackCombustion Exhaust Certified Combustion Air Installations Canadian InstallationsChanging the Flue Outlet Venting Configurations Venting Installation TipsInstallation Natural Draft Vertical Venting Category Common Venting System TerminationCertified Vertical Venting Combustion Air Air Inlet Model Height Horizontal Through-the-Wall Venting Category Horizontal Through-the-Wall Venting Category Model Certified Maximum Combustion Air Inlet Direct Vent Horizontal Through- the-WallVenting Equivalent Material Vent Length Intake Pipe Direct Vent Vertical Direct Vent Vertical Outdoor Installation ControlsFreeze Protection Models 992B-1262B Heater Sequence of Operation External Lights Color Indication Models 1532B 1802B Page Page Models 2002B 2342B Page Page Flow Switch High Limit Manual ResetIgnition Module Operating Control Low Water Cut-Off Optional High and Low Gas Pressure Switches UDB Fault History UDB Diagnostic Board 87%-Efficiency Boilers Special Instructions Water PipingVenting Appliance Categories Vertical Venting Category Vent Terminal LocationCondensate Management Certified Maximum Combustion Air Air Inlet Model Venting EquivalentMax. Length Material Vent Length Direct Vent Horizontal Through- the-Wall 992BE 75’ 100’ 1262BE Galvanized Steel 1532BE Category 25’ Wiring Diagram Models 992B-1262B Wiring Diagram Models 1532B-2342B Pre Start-up START-UP Blower Adjustment Main Burner AdjustmentStart-Up Leak Test Procedure Dual-Seat Gas Valves Safety InspectionFollow-Up Pilot Turn-Down Test Leak Test Post Start-Up Check Operation Lighting InstructionsTo Turn Off Gas To Appliance Step Troubleshooting Maintenance Suggested Minimum Maintenance SchedulePreventive Maintenance Schedule Semi-Annually WeeklyAnnually As Required Inside Air Contamination Appendix Limited Parts Warranty HI Delta Types H and WH Limited Parts Warranty HI Delta Type P START-UP Checklist for FAN-ASSISTED Raypak Products Page