Raypak 0090B 0135B installation instructions Typical Piping, Single Zone Piping

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Systems with multiple zones may require an additional circulator. Consult manufacturers data for valve pressure drops. When an indirect water heating system is used, it is recommended that a separate circulator be installed to meet the required flow and pressure drop conditions of the indirect water heater.

We recommend that the make up water from the cold water line have a check valve, gate valve, and feedwater regulator set at 12 psig. Install unions and gate or ball valves at inlet and outlet connections at the boiler to facilitate servicing.

The pressure relief valve is mounted on the boiler and must be piped to a drain. We recommend that all high points be vented and that purge valves be installed. A boiler installed above radiation level must be provided with a low water cutoff device. See page 21 for wiring hook-up. The boiler, when used in connection with a refrigeration system, must be installed so the chilled medium is piped in parallel with the boiler with appropriate valves to prevent the chilled medium from entering the boiler.

The boiler piping system of a hot water heating boiler connected to heating coils located in air handling units where they may be exposed to refrigerated air circulation must be equipped with flow control valves or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle.

A diaphragm expansion tank should be installed in the return line. A typical 8" diameter expansion tank can be used on the models H-0030, H-0042, and H-0066 and an 11" diameter expansion tank can be used on the model H-0090, H-0135 and H-1080. Consult tank manufacturer for correct sizing.

TYPICAL PIPING

AIR

VENT

AIR

SCOOP

DIAPHRAGM

EXPANSION TANK

FEED

VALVE

PIPE PRESSURE

RELIEF VALVE

TO DRAIN

COLD

WATER

INLET

HEATING UNITS

Fig.# 8997.1

SINGLE ZONE PIPING

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Contents For Your Safety Operating Installation InstructionsContents Receiving Equipment General SpecificationsSpecifications and Dimensions Clearance Requirements Installation ProceduresCode Requirements Mounting BaseVenting Connections Model Sq. In. of Free Area 0030, 0042 100Fig.# Common VentsLocation Vent Damper InstallationMounting Installing the Vent Damper in Horizontal & Vertical VentsD80D General Wiring Diagram Flair Damper Vent DamperWater Connections & System Piping GAS PRESSURE-SPECIFICATIONSGAS Supply Connections Single Zone Piping Typical PipingZone Heating with Indirect Domestic HOT Water Supply Multiple Zones with Zone Valves Multiple Zones with CirculatorsFig.# Electrical WiringFig. # 2223e Wiring Diagram Standing Pilot 24 V 2 StageWiring Diagramintermittent Ignition Device IID Models 30, 42 Fig. #2358 Wiring Diagram Intermittent Ignition Device IIDWiring Diagram Single Zone Taco Valve Wiring Diagram System with 3 Zone Pumps Fig. #2223.2e Wiring Diagram Standing Pilot With Low Water Cut Off Device Sequence of Operation Intermittent Ignition Device IID Servicing ProceduresGeneral Location of Controls Control BOX Component Locations Models 135Filling the System START-UP ProceduresWhat to do if YOU Smell GAS Lighting the BoilerFor Automatic Ignition Models Honeywell Pilot Robertshaw PilotTo Turn OFF GAS to Boiler System Shut Down ProcedureFor Automatic Ignition Systems Main Burner Flame Inspection Procedures BurnersSafe Shutdown Tests Limit Action Flame FailureRepair Section Raypak Tube Cleaning KITBurner Drawer Removal Main Burner and Orifice RemovalCombustion Chamber Removal Heat Exchanger RE-ASSEMBLYImportant Notice Trouble Shooting GuidePiping ADJUSTMENTS/REPLACEMENTS of Components RAYPAK, INC Replacement Parts ListBypass valve supplied on sizes H-0135 and H-0180 only Page Venting
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