Raypak 992B manual Equipment Base, Stacking, Installation Codes

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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.).

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.

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

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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Contents Installation & Operating Instructions Page Contents Pay Attention to These Terms Installations at Elevation Before InstallationProduct Receipt Model IdentificationComponent Locations Back Component LocationsModel Quantity Vent Size Gas Burners Blowers General InformationValves Model Burners per Valve Stages Fire at StageGeneral Safety Time/Temperature Relationships in ScaldsWater Time to Produce Serious Temp Burn Installation Codes InstallationEquipment Base StackingTable D Vent/Air Inlet Termination Clearances Indoor Installations Outdoor InstallationsClearances Reversing Air Filter Combustion and Ventilation AirDirect Vent Indoor UnitsConventional Combustion Air Supply InstallationsTruSeal Combustion Air All Air from Inside the BuildingWater Piping Canadian InstallationsGeneral Reversing Water ConnectionsCold Water Operation Relief Valve Piping Hydrostatic TestTemperature & Pressure Gauge Hydronic HeatingPump Selection Piping Pressure Drop in Feet of Head Feedwater RegulatorAir-Separation/Expansion Tank Three-Way ValvesPool Heating Potable Water and Space HeatingWinterizing Your Heater Automatic Chlorinators and Chemical FeedersPool/Spa Water Chemistry Water Hardness Gas SupplyPH of Water Total Dissolved SolidsReversing Gas Supply Connection Gas Supply ConnectionModel Table I Maximum Equivalent Pipe LengthCheck the Power Source Electrical Power ConnectionsGas Supply Pressure Field-Connected ControllersMaking the Electrical Connections Field Wiring ConnectionOn-Off Wiring Connections Flue Exhaust Tee VentingModel Diameter Order Number Appliance CategoriesVent Terminal Location Support of Vent StackCombustion Exhaust Certified Combustion AirInstallations Canadian InstallationsChanging the Flue Outlet Venting Configurations Venting Installation TipsInstallation Natural Draft Vertical Venting CategoryCommon Venting System TerminationCertified Vertical Venting Combustion Air Air Inlet Model HeightHorizontal Through-the-Wall Venting Category Horizontal Through-the-Wall Venting CategoryModel Certified Maximum Combustion Air Inlet Direct Vent Horizontal Through- the-WallVenting EquivalentDirect Vent Vertical Direct Vent VerticalOutdoor Installation ControlsFreeze Protection Models 992B-1262B Heater Sequence of OperationExternal Lights Color Indication Models 1532B 1802B Page Page Models 2002B 2342B Page Page Flow Switch High Limit Manual ResetIgnition Module Operating ControlLow Water Cut-Off Optional High and Low Gas Pressure SwitchesPump Time Delay UDB Diagnostic BoardUDB Fault History 87%-Efficiency Boilers Special Instructions Water PipingVenting Appliance Categories Vertical Venting Category Vent Terminal LocationCondensate Management Combustion 40’ 75’ 2072BE Air 2342BE Certified Maximum Combustion Air Air Inlet Model VentingDirect 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-UPBlower Adjustment Main Burner AdjustmentStart-Up Leak Test Procedure Dual-Seat Gas Valves Safety InspectionFollow-Up Pilot Turn-Down TestLeak Test Post Start-Up CheckOperation Lighting InstructionsTo Turn Off Gas To Appliance Step TroubleshootingMaintenance Suggested Minimum Maintenance SchedulePreventive Maintenance Schedule Semi-Annually WeeklyAnnually As RequiredInside Air Contamination AppendixLimited Parts Warranty HI Delta Types H and WH Limited Parts Warranty HI Delta Type P START-UP Checklist for FAN-ASSISTED Raypak Products Page Page Page

992B specifications

The Raypak 992B is a highly regarded commercial boiler known for its efficiency and reliability in heating applications. Designed for a range of installations, it is particularly favored in schools, hotels, and various commercial settings where dependable heating is crucial. One of the standout features of the Raypak 992B is its impressive thermal efficiency rating, often exceeding 90%. This efficiency translates into lower energy costs and reduced environmental impact, making it a smart choice for eco-conscious businesses.

The Raypak 992B comes equipped with advanced technologies that enhance performance and ease of use. Among these technologies is the high-precision digital control system, which allows for accurate temperature regulation and monitoring. This feature ensures optimal performance and minimizes energy waste, further contributing to the unit's cost-effectiveness. The boiler also utilizes a modulating burner system, enabling it to adjust flame size based on real-time heating demands. This adaptability not only enhances efficiency but also improves overall comfort within a facility.

Another significant characteristic of the Raypak 992B is its robust construction. Built with durable materials designed to withstand demanding operating conditions, this boiler is engineered for long-lasting performance. Its compact design is an added benefit, facilitating installation in areas with limited space. The unit is also equipped with a stainless steel heat exchanger, which provides superior resistance to corrosion and enhances heat transfer efficiency.

Safety features are also paramount in the design of the Raypak 992B. The boiler includes multiple safety controls and alarms to prevent overheating and maintain safe operating conditions. This diligence in safety ensures peace of mind for operators and reduces the risk of unexpected downtime.

In summary, the Raypak 992B stands out as a top choice for commercial heating solutions, combining high efficiency, advanced technology, and rugged construction. Its features cater to a wide range of heating needs while prioritizing safety and economy. With its impressive performance capabilities, the Raypak 992B continues to be a reliable partner for facilities seeking optimal heating solutions.
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