Raypak 0042B, 0066B, 0180B manual Piping

Page 35

10)Defective ignition module or defective gas valve.

10)Before module goes into a lock-out, check voltage across MV and MV/ PV. If no 24V is present, replace module. If 24V is present, replace gas valve.

3)Pilot Outage.

1) Too low or too high gas pressures.

1)

Adjust inlet gas pressure as shown

(Standing pilot models)

 

 

 

on rating plate.

 

2)

Restricted pilot.

2)

Clean pilot orifice.

 

3)

Weak thermocouple.

3)

Replace thermocouple.

 

 

 

4)Yellow lazy flame.

1) Too low gas pressure.

1) Adjust manifold pressure as shown

 

 

 

 

on rating plate.

 

2)

Restricted burner intake ports.

2)

Clean burners free of debris or in-

 

 

 

 

sects.

 

3)

Restricted gas line.

3)

Clean gas line or increase gas line

 

 

 

 

piping.

 

 

 

5)Sooting

1) Insufficient combustion air.

1) Refer to installation instructions re-

 

 

 

 

garding combustion air require-

 

 

 

 

ments.

 

2)

Improper venting.

2)

Refer to installations instructions.

 

3)

Severe yellow burner flames.

3)

See yellow flame section above.

 

 

 

 

 

 

 

 

 

 

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Contents Raytherm Residential Boilers Page Contents Proposition Pay Attention to These TermsReceiving Equipment General SpecificationsRating Input Heating Net Piping ConnectionsCapacity Gas NPTClearance Requirements InstallationCode Requirements Mounting BaseModel No Combustion/Ventilation AirModel No Sq. in. of Free Area Venting Connections Model No Vent Max Connector Horizontal Diameter Length ftRoof Pitch X/12 Min. ft Common VentsVent Damper Location Vent Damper Installation LocationVent Damper Operation MountingAbbreviationDescription Flair DamperVent Damper Water Connections & System Piping Gas Supply ConnectionsGas Pressure Model No System Flow Max. System Gpm Head ft/WC Single-Zone Piping Piping DiagramsElectrical Wiring Wiring Diagrams Page Page Single-Zone Taco Valve System with Three 3 Zone Pumps Primary/Secondary Pumping System Honeywell Zone Valve IID Units with Low Water Cut-off Device Intermittent Ignition Device IID Servicing ProceduresSequence Operation General Location of ControlsFilling the System START-UP ProceduresLighting the Boiler For Standing Pilot ModelsFor Automatic Ignition Models To Turn Off Gas to the Boiler Models 90, 135For Honeywell valve Shut-down ProcedureTo Turn Off Gas to the Boiler For Honeywell valve Turn gas control knobSafe Shut-down Tests Testing the Ignition Safety Shut-offBurners Inspection ProceduresLow Water Cut-Off When Installed Procedure for Cleaning Flue Gas PassagewaysBurner Tray Removal Repair ProceduresTube Cleaning Procedure Typical Heat Exchanger RemovalCombustion Chamber Removal Heat Exchanger Re-assemblyProblem Causes Solutions TroubleshootingPiping Adjustment & Replacement of Components Circulator Replacement Replacement Parts ListFast-Response Temperature Sensor Module Replacement Fast-Response Temperature Sensor Probe ReplacementLimited Parts Warranty
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Manual 39 pages 210 b