Raypak 2600401 Water Connections & System Piping, Setting, Gas Pressure Regulator

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Gas Pressure Specifications

Type of

Inches WC

Regulator

 

 

Gas

Min.

Max.*

Setting

 

 

 

 

 

 

Natural

7.0

10.5

4.0

 

 

 

 

Propane

12.0

13.0

11.0

 

 

 

 

*Do not exceed maximum inlet gas pressure. The minimum value shown is for input adjustment.

Table H: Gas Pressure Specifications

Gas Pressure Regulator

The gas valve is provided with pressure taps to meas- ure gas pressure upstream of the gas valve and downstream which is the same as the manifold pres- sure.

The gas pressure regulator is preset and sealed at 4 in. WC for natural gas, and 11 in. WC for propane gas. Between the gas valve and the burners is a 1/8 in. pipe plug. The pressure at this point, taken with a manome- ter, should be about 3.7 in. WC natural gas and 10.5 in. WC propane gas. Lo NOx models should be 3.9 in. WC natural gas only. If an adjustment is needed, remove seal and turn adjustment screw clockwise to increase pressure or counter-clockwise to decrease pressure.

Water Connections & System Piping

The pipe size and fittings between the heater and the tank should be at least 1-1/2" for all models. The tank should be located as close to the heater as possible, as shown in Fig. 13 below.

Fig. 13: Heater with Storage Tank

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Contents Econopak Water Heaters Page Contents Are important but not related to personal injury hazards Temperature Time to Produce Serious Burn General SafetyTime/Temperature Relationships in Scalds General Specifications Receiving EquipmentTank Mounting Base InstallationCode Requirements ClearancesModels Venting ConnectionsOutdoor Models Model No Sq. in. of Each Free AreaIndoor Models Models 0260Vent Max Model No Connector Horizontal Diameter Length ft Vent Terminal/Indoor Stack InstallationCommon Vents Vent Pipe Draft Hood HeaterGas Supply Connections Model No Nat ProWater Connections & System Piping Gas Pressure Specifications Type Inches WC Regulator MinSetting Gas Pressure RegulatorRelief Valve 0261 Low NOx WH1 with Pressure Relief ValveElectrical Wiring Wiring Diagrams Standing Pilot ModelIntermittent Ignition Device IID Model Intermittent Ignition Device IID Models 0330 Intermittent Ignition Device IID Model 0261 Low NOx Intermittent Ignition Device IID Models 0331 & 0401 Low NOx Sequence of Operation Servicing ProceduresStart-up Procedures Honeywellpilot Robertshaw Pilot For Robertshaw Gas Valve Turn gas control System Shut Down ProcedureFor Automatic Ignition Models Testing the Ignition Safety Shut-off To Turn Off Gas To ApplianceLow NOx Heaters-Models Inspection ProceduresControls BurnersOperation Burner AdjustmentHigh/Low Gas Pressure Switch Visual InspectionRepair Section Combustion Chamber Removal Heat Exchanger Re-assemblyHeat Exchanger Removal Troubleshooting CausesPiping Electrical Electronic Ignition IID Intermittent Pilot System- Honeywell S8600Electrical Standing Pilot Adjustments & Replacement of Components Tube Replacement Procedure Circulator ReplacementControl Well Replacement Procedure for Cleaning Flue Gas Passage WaysLimitedpartswarrantyeconopakwaterheaters Page Page