Heatiator NB3933M Maintenance and Service Tasks, Inspect, Maintenance Tasks, one is not present

Models: NB3933M NB3630M NB3630MI NB3933MI NB4236M NB4842MI NB4236MI NB4842M

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Maintenance and Service Tasks:

Inspect

 

Maintenance Tasks

Doors, surrounds and fronts

1.

Assess condition of screen and replace as necessary. Recommend addition of screen if

 

 

one is not present.

 

2.

Inspect for scratches, dents or other damage and repair as necessary.

 

3.

Verify no obstructions to airflow through the louvers.

 

4.

Verify proper clearance to combustible household objects is maintained.

Gasket seal, glass assembly and glass

1.

Inspect gasket seal and its condition.

 

2.

Inspect glass panels for scratches and nicks that can lead to breakage when exposed to heat.

 

3.

Confirm there is no damage to glass or glass frame. Replace as necessary.

 

4.

Verify that latches engage properly, clip studs are not stripped, and glass attachment

 

 

components are intact and operating properly. Replace as necessary.

 

5.

Clean glass using a nonabrasive cleaner such as Brasso®. Replace glass assembly if

 

 

severely coated with silicate deposits that cannot be removed.

Valve compartment and firebox top

1.

Vacuum and wipe out dust, cobwebs, debris or pet hair. Use caution when cleaning these

 

 

areas. Screw tips that have penetrated the sheet metal are sharp and should be avoided.

 

2.

Remove any foreign objects.

 

3.

Verify unobstructed air circulation.

Logs

1.

Inspect for broken, damaged, or missing logs. Replace as necessary.

 

2.

Verify correct log placement and no flame impingement causing sooting. Correct as

 

 

necessary.

Firebox

1.

Inspect for paint condition, warpage, corrosion or perforation. Sand and repaint as necessary.

 

2.

Replace appliance if firebox has been perforated.

Burner ignition and operation

1.

Verify burner is properly secured and aligned with pilot or ignitor.

 

2.

Clean off burner top, inspect for plugged ports, corrosion or deterioration. Replace burner if

 

 

necessary.

 

3.

Replace rockwool with new dime-sized and shaped pieces. Do not block ports or obstruct

 

 

lighting paths.

 

4.

Check for smooth lighting and ignition carryover to all ports. Verify there is no ignition delay.

 

5.

Inspect for lifting or other flame problems.

 

6.

Verify air shutter is clear of dust and debris.

 

 

 

 

7.

Inspect orifice for soot, dirt or corrosion.

 

8.

Verify manifold and inlet pressures. Adjust regulator as required.

 

 

 

 

9.

Inspect pilot flame strength. Clean or replace orifice as necessary.

 

10.

Inspect thermocouple/thermopile or IPI sensor rod for soot, corrosion and deterioration. Clean

 

 

with emery cloth or replace as required.

 

11.

Verify millivolt output. Replace as necessary.

Venting

1.

Inspect venting for blockage or obstruction such as birds’ nests, leaves, etc.

 

2.

Confirm that termination cap remains clear and unobstructed by plants, etc.

 

3.

Verify that termination cap clearance to subsequent construction (building additions, decks,

 

 

fences or sheds) has been maintained.

 

4.

Inspect for corrosion or separation.

 

5.

Verify weather stripping, sealing and flashing remain intact.

 

6.

Inspect draft shield to verify it is not bent, damaged or missing.

Remote controls

1.

Verify operation of remote.

 

 

 

 

2.

Replace batteries in remote transmitters and battery-powered receivers.

 

3.

Verify batteries have been removed from battery back-up in IPI systems to prevent premature

 

 

battery failure or leaking.

Heatilator • Novus BV-Mesh4031-553 Rev F • 11/07

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Heatiator NB3933M, NB4236MI, NB4842MI Maintenance and Service Tasks, Inspect, Maintenance Tasks, one is not present