CLEAN BURN CB-2800 Operator's Manual download pdf (Page 85)

Operator's Manual: Models CB-1500 & CB-2500 (230V / 50 Hz)

9-5

Figure 9D - Accessing the CB-1500 Combustion Chamber for Cleaning (CB-2500 is similar)

Cleaning Ash From the Furnace

NOTE: The maintenance interval for cleaning ash from the furnace is approximately 700 hours of

operation as indicated on the hour meter on the burner (refer to the servicing intervals at the beginning of

this chapter). Be sure to clean the ash from your furnace at least twice during the heating season.

Your furnace may require more frequent clean out of the ash due to contaminants in the oil or heavy

use. As ash accumulates, furnace heat output declines, and the stack temperature rises. 3mm (1/8")

of ash has the insulating capacity of 25mm (1") of fiberglass insulation and reduces heat transfer

significantly. Never allow more than 6mm (1/4") of ash to accumulate in the combustion chamber,

heat exchanger flues, or stack.

CAUTION: Be aware that used oils may contain heavy metallic compounds or foreign

materials. When burned, these compounds are deposited within the furnace, necessitating

careful cleaning. The following protective gear should be worn when cleaning the ash:

• Respirator for fine particles (a dust mask is not acceptable)

• Rubber gloves • Safety goggles • Protective clothing

CAUTION: Make sure you use a sturdy ladder or scaffolding for safe access to ceiling-hung

furnaces. When cleaning the furnace, static electricity may build up in the shop vac hose. If this

occurs, use #12 copper wire wrapped around the hose with the other end connected to the furnace (or

other ground source) to eliminate the static.

I88949

CLEAN-OUT

BREECH

CLEAN-OUT CAP

CLEAN-OUT DOOR

COMBUSTION CHAMBER

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CLEAN BURN CB-2800 Operator's Manual Page 85