Raypak 207A Plumbing for Water Connections, Flow Rates, Polymer Headers Cast Iron Headers Asme

Page 21

PLUMBING FOR WATER CONNECTIONS

The heater requires water flow and positive pressure to fire and operate properly. It must therefore be installed downstream of the discharge side of the filter pump. A typical installation is plumbed as follows:

1.The inlet side of the filter is plumbed directly to the discharge side of the filter pump;

2.The outlet side of the filter is then plumbed to the inlet of the heater; and

3.The outlet of the heater is plumbed to the return line to the pool or spa. The pump, filter and heater are thus plumbed in series.

Plumbing from the heater back to the pool or spa must not have any valves or restriction that could prevent flow when the pump is operating.

VALVE CLOSED

CHEMICAL INSERTION POINT (IF IN THE PIPING SYSTEM)

WHEN SYSTEM

IS HEATING THE POOL

TO SPA

 

HEATER

VALVE CLOSED

WITH INTERNAL

BYPASS

WHEN SYSTEM

 

IS HEATING THE SPA

 

 

ISOLATION

 

VALVE

 

BALL VALVE

FILTER

PRESSURE

RELIEF VALVE

PUMP

PUMP

 

COARSE

UNION

STRAINER

 

CHECK VALVE

TO POOL

 

CAUTION: An additional source of heated water, e.g. a solar system, must be connected to the main line ahead of the heater inlet pipe in order for it to act as the primary heat source. If the primary system provides adequate heat to maintain set-point, the heater will not fire. Be advised that the control panel will then display sensed water temperatures downstream of the primary heating system, rather than the temperature of the water exiting the pool.

Heater must be located so that any water leaks will not damage the structure of adjacent area. PVC pipe may be glued directly into header unions (Standard models only).

FLOW RATES

MODEL

PIPE SIZE

MIN. GPM

MAX. GPM*

 

 

 

 

206/207

1-1/4”–1-1/2” - 2”

20

125

 

 

 

 

266/267

1-1/4”–1-1/2” - 2”

25

125

 

 

 

 

336/337

1-1/4”–1-1/2” - 2”

35

125

 

 

 

 

406/407

1-1/4”–1-1/2” - 2”

40

125

 

 

 

 

*When flow rates exceed maximum GPM an external auxil- iary bypass valve is required. See external bypass valve section for details.

Fig.# 2012

POLYMER HEADERS

CAST IRON HEADERS (ASME)

21

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Contents What to do if YOU Smell GAS Installation and Operating InstructionsMaximum Water ChemistryContents START-UP Procedures For Your Safety Read Before OperatingBefore START-UP Burners Water Millivolt System SHUT-OFF Procedures Operating Instructions and SHUT-OFF ProceduresElectronic Ignition System Automatically Lighted PilotWater Pressure Switch After START-UPVisual Inspection Atmospheric Heaters See plumbing diagram Maintenance and Care ProceduresIf Heater will not Fire Pool & SPA Water ChemistryImportant Freeze Information Cold Weather OperationWinterizing the Pool & SPA Heater Receiving Equipment Part TWO Installation and Service InstructionsInstallation Instructions General SpecificationsImportant Notice Code RequirementsOutdoor Heater Installation Outdoor InstallationClearances ALL Heaters10 ft Wind Speed = 150 MPH, 3 Second Gust Exposure = C Florida Building CodeOutdoor Stack Indoor Stack Indoor Heater InstallationAtmospheric Units Specifications and DimensionsLow NOx Units Combustion and Ventilation AIR Indoor Units Only Power Vent Kit Model Part NoModel Square Inches Vent PipingGAS Supply Connections B149.1 and B149.2GAS Pressure Adjustment Locations GAS Pressure RegulatorPipe Sizing for GAS Connections Plumbing for Water Connections Flow RatesPolymer Headers Cast Iron Headers Asme Cast Iron Headers Asme Models INLET/OUTLET Header PolymerINLET/OUTLET Header Asme Unitherm Governor OperationExternal Auxiliary Bypass Valve Auxiliary Bypass Valve AdjustmentCast Iron Header Asme Models Fig. #4 Heat Exchanger Reversal Procedure Standard ModelsMillivolt Models Electrical WiringDigital Models AtmosphericTransformer Wiring VAC Wiring 120V Atmospheric Heater240V Atmospheric Heater Wiring Diagram Millivolt Mechanical Thermostat Wiring Diagram Digital Models Atmospheric Wiring Diagram Digital Models LOW NOx Servicing Instructions General Location of Controls AtmosphericLOW NOx Control Adjustments Digital Models Control Adjustments Millivolt ModelsControl Panel Removal Thermostat Control Operation Digital Thermostat ControlsRESfl Reset Fault History SETdef Default SettingsProgram Button Cfff Fahrenheit to CelsiusFault Codes Diagnostics Reading a FaultStatus Codes Program Modes Display DefinitionRemote Control Installation and Operation Remote OperationActivating the Remote Wire Remote Control On-Off Remote Control WiringPilot Safety Millivolt Models Flame ROLL-OUT Safety SwitchPilot Safety Digital Models High LimitsBurner Tray Removal Pilot Removal and CleaningGAS Valve Removal Main Burner and Orifice RemovalDesooting Procedure Tube Cleaning ProcedureImmersion Well Replacement Unitherm Governor U.G. ReplacementLOW NOx Pool Heaters Blower AdjustmentOperation Visual InspectionCombustion Blower Removal Pilot RemovalMechanical TroubleshootingPage For qualified technicians only Electrical Electronic Ignition IIDYES Digital Control Logic Flow ChartReplacement Parts ManufacturerEastman Avenue OXNARD, CA Atmospheric Heaters LOW NOx Heaters IID LOW NOx Pilot Call OUT Description Call OUT Description Sheetmetal Call OUT Description 267A