Raypak 2600401 operating instructions Troubleshooting, Causes

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TROUBLESHOOTING

These instructions are primarily intended for the use of qualified personnel specifically trained and experienced in the installation of this type of heating equipment and related system components. Installation and service personnel may be required by some states to be licensed. Persons not qualified shall not attempt to install this equipment nor attempt repairs according to these instructions.

PROBLEM(S)

1)When tankstat is turned on, heater does not operate.

CAUSE(S)

1)No power to the heater.

2)Defective tankstat or disconnected wire in thermostat circuit.

3)Defective transformer.

SOLUTION(S)

1)Check circuit breakers, disconnect switch. Make sure power is on.

2)Check continuity on thermostat and wiring circuit. Replace thermostat, or repair wiring connections.

3)Check secondary voltage. If no 24V, replace transformer.

2)When tankstat is calling for heat, pump is on, but burners will not turn on.

1)For Standing pilot models pilot burner not lighted.

2)If pilot burner will not stay lighted, thermocouple or gas valve may be defective.

3)Gas knob in "Pilot" position. 4)Vent switch is open.

5)Roll-out switch is open.

6)Manual Reset High limit is open.

7) Defective ignition module or defective gas valve.

1)Light pilot burner. (Follow lighting instructions on rating plate).

2)Check thermocouple MV generation. If less than 25MV (open circuit), re- place thermocouple. If between 25- 35 MV, replace gas valve.

3)Turn knob to "ON" position.

4)Check for blockage of venting sys tem or disconnected vent piping. After

problem is corrected push button to reset vent switch.

5)Check for blockage of flue or sooted heat exchanger. After problem is corrected push button to reset roll-out switch.

6)Check water flow and adjust to obtain 8° to 10°F temperature rise.

7)On Honeywell module, check voltage across terminals MV and MV/PV. If no 24V is present, replace module. If 24V is present, replace gas valve.

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Contents Econopak Water Heaters Page Contents Are important but not related to personal injury hazards General Safety Time/Temperature Relationships in ScaldsTemperature Time to Produce Serious Burn 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 Servicing Procedures Start-up ProceduresSequence of Operation Honeywellpilot Robertshaw Pilot System Shut Down Procedure For Automatic Ignition ModelsFor Robertshaw Gas Valve Turn gas control 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 Heat Exchanger Re-assembly Heat Exchanger RemovalCombustion Chamber 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