Raypak 1005 Preventive Maintenance Schedule, Periodically, Weekly, Semi-Annually

2.Visually inspect venting system for proper func- tion, deterioration or leakage. Ensure that condensate drain is inspected and ensure that condensate is being directed to appropriate con- densate management system or drain, as required by local codes.

3.Check that area is free from combustible materi- als, gasoline, and other flammable vapors and liquids.

4.Check for and remove any obstruction to the flow of combustion or ventilation air to heater.

5.Follow pre-start-up check in the Start-up section.

6.Visually inspect burner flame. It should be light blue at full input. Remove and visually inspect hot surface igniter and sensor for damage, cracking or debris build-up.

7.Check operation of safety devices. Refer to manu- facturers’ instructions.

8.Follow oil-lubricating instructions on pump (if re- quired). Over-oiling will damage pump. Water-lubricated circulators do not need oiling.

9.To avoid potential of severe burn, DO NOT REST HANDS ON OR GRASP PIPES. Use a light touch; return piping will heat up quickly.

10.Check blower and blower motor

11.Check for piping leaks around pumps, relief valves and other fittings. Repair, if found. DO NOT use petroleum-based stop-leak.

12.Check the fault history and reset as necessary.

Periodically

1.Check relief valve(s). Refer to manufacturer’s instructions on valve.

2.Test low water cut-off (if equipped). Refer to manu- facturer’s instructions.

3.Reset fault history after any testing.

Preventive Maintenance Schedule

The following procedures are recommended and are good practice for all XTherm installations.

Daily

1.Check gauges, monitors and indicators.

2.Check instrument and equipment settings. (See “Post Start-Up Check” on page 48.)

3.Check burner flame. (Should see light blue flame at full input rate).

Weekly

For low-pressure heaters, test low-water cut-off device. (With heater in pre-purge, depress the low water cut-off test button. Appliance should shut-off and ignition fault light should come on. Depress reset button on front of heater control panel to reset).

Monthly

1.Check flue, vent, stack, or outlet dampers.

2.Test blower air pressure. (See “Blower Check” on page 46.)

3.Test high and low gas pressure interlocks (if equipped). (See “Safety Inspection” on page 47.)

4.Check tracking pressure (see “Blower Check” step number 2 on page 46).

5.Reset fault history after any testing.

Semi-Annually

1.Recalibrate all indicating and recording gauges.

2.Check flame failure detection system components.

3.Check firing rate control by checking the manifold pressure. (See “Manifold Check” on page 46.)

4.Check piping and wiring of all interlocks and shut- off valves.

Annually

1.Test flame failure detection system and pilot turn- down.

2.Test high limit and operating temperature. (See “Post Start-Up Check,” page 48.)

3.Check flame sensor.

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