Raypak P-926 manual Clearances, Combustion Air Indoor Units Only, Indoor Heaters, Outdoor Heaters

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Clearances

Clearances

All Heaters

For clearances from combustible surfaces, see Table A below. We require a minimal vertical clearance of three feet between the upper surface of the flue outlet to a noncombustible material.

Indoor Heaters

Outdoor Heaters

(926–1758)

Heater

Clearance

Heater

Clearance

Side

(Inches)

Side

(Inches)

Top

24

Top

24

Back

24

Back

24

Right Side

24

Right Side

24

Left Side

24

Left Side

24

Vent*

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

For servicing provide a front clearance as shown below: Model 926/962-758/1826 - 24"

Model 2100-4001 - 48"

Table A: Minimum Clearances from Combustible

Construction

For servicing, provide at least 24" in front of the heater on Models 926-1826 & 48" in front of the heater on Models 2100-4001 for burner tray removal, and at least 18" on the right side of the heater to inspect and delime the heat exchanger.

Outdoor Heaters (Models 926-1758)

These heaters are design certified for outdoor installa- tion, when equipped with the approved top designated for outdoor use. Heaters must not be installed under an overhang of less than three (3) feet from the top of the heater. Three (3) sides must be open in the area under the overhang. Roof water drainage must be diverted away from heaters installed under overhangs with the use of gutters.

WARNING: The heater shall not be located in an area where water sprinklers, or other devices, may cause water to spray through the cabinet louvers and into the heater. This could cause heavy internal rusting or damage some electrical components, and this would void the warranty.

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Fig. 2: Minimum Distance from Openings

The point from where the flue products exit the heater must be a minimum of four (4) feet below, four (4) feet horizontally from or one (1) foot above any door, win- dow or gravity inlet to a building. The top surface of the heater shall be at least three (3) feet above any forced air inlet, or intake ducts located within ten (10 ) feet horizontally.

High Wind Conditions

(Outdoor Units Only)

In areas where high winds are frequent, it may be nec- essary to locate the heater a minimum of 3' from high vertical walls, or install a wind break so the heater is not in direct wind current.

Indoor Heaters

The design is also certified for indoor installation when equipped with approved drafthood. Locate heater as close as practical to a chimney or gas vent.

Combustion Air

(Indoor Units Only)

The heater must have both combustion and ventilation air. Openings must not be obstructed. Minimum requirements are as follows:

CAUTION: Combustion air must not be contaminated by corrosive chemical fumes which can damage the heater and void the warranty.

1.Free combustion air 1 sq. in. per 1000 BTU input within 12" of the floor.

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Contents INSTALLATION & OPERATING INSTRUCTIONS Raytherm Commercial Swimming Pool HeaterModels P-926to P-1826 & P-2100to P-4001 Corrosive water voids all warranties CONTENTS WARNINGS Pay Attention to These TermsDANGER Base Installation RECEIVING EQUIPMENT INSTALLATIONGENERAL SPECIFICATIONS Code RequirementsIndoor Heaters ClearancesCombustion Air Indoor Units Only Outdoor HeatersVenting Connections Drafthood Indoor ModelsVent Piping Gas Supply Connections Gas Pressure Regulator1-1/4” Venting of Diaphragm Gas ComponentsModel 1-1/2”Flow Switch CONTROLSWater Connections Unitherm Governor Operation Water Pressure SwitchAutomatic Chlorinators and Chemical Feeders Companion Flange Connections ModelsMinimum Model NoConnection Model No. Loop* Flow Rates Heater Flow2.Lace metal strapping or clamps, NOT PROVID- ED through the ¾” slots on the cover and fasten securely to pipe as shown in Fig. 15 & 16. Do not over-tightenclamps HEATER Models 0926 thru 1223 with UG BLENDEDWATER TEMPERATURE RECOMMENDED FIELD INSTALLEDISOLATION VALVESFORSERVICE THERMOMETERATHEATERINLETModels 2100 thru HEATEROUTLETTEMPERATURETHERMOMETER926-1223Models Only External Auxiliary Bypass Valve Where RequiredAuxiliary Bypass Valve Adjustment Temperature ControlsLow Water Cutoff Electrical WiringHigh & Low Gas Pressure Switches Electronic IgnitionWiring Diagram-Models Wiring Diagram-Models Wiring Diagram-Models Wiring Diagram-Models SERVICING Pressure SwitchPressure Switch Adjustment General Location Of ControlsTwo-SpeedPumps START-UP PROCEDURESPilot Safety Before Start-UpINSPECTION PROCEDURES After Start-UpBurners Burner Drawer Removal SERVICING PROCEDURESTube Cleaning Procedure Typical Gas Valve RemovalMain Burner and Orifice Removal Pilot Removal and CleaningHeat Exchanger Reassembly Heat Exchanger RemovalProcedure For Cleaning Flue Gas Passageways Control Well ReplacementTube Replacement Procedure Combustion Chamber RemovalUNITHERM GOVERNOR WITH POWER ELEMENT MAINTENANCE AND CAREUnitherm Governor Replacement INLET/OUTLET HEADER OUTLET INLET GASKETWinterizing Your Heater TROUBLESHOOTING MECHANICAL FOR QUALIFIED SERVICE PERSONNEL ONLYIMPORTANT NOTICE Clean filter or refer to heater sizing chartReset time clock Refer to installation instructionsELECTRICAL ELECTRONIC IGNITION IID IID TROUBLESHOOTING HONEYWELL S8600Intermittent Pilot System STARTADDITIONAL WARRANTY EXCLUSIONS LIMITED WARRANTY RAYTHERM TYPE P SIZESHEAT EXCHANGER WARRANTY PARTS REPLACEMENT