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Maintenance

General

The frequency of maintenance is strongly depending on the quality of the combustion air and the

intensity of use. When used in poultry houses, maintenance is advised every 6 weeks or by changing

the animals. By use in clean environment conditions, the maintenance period can be extended but not

longer than 6 months. In case heaters are not used for a long period, always do maintenance first before

using them again. Wear safety goggles during cleaning with compressed air.

Parts that are broken, or are not functioning well, must be replaced directly by identical ones of same

brand and type. Consult the dealer or manufacturer in case of doubt.

Order of maintenance

•

First clean the heater and filters as described below by daily maintenance. Take the venturi out

during cleaning to remove dust directly behind it.

•

Clean the reflector and other parts with water and mild detergent and a cloth or soft brush.

•

Carefully inspect the outer and inner burner globes on damage, cracks and holes. Replace when

needed.

•

Check the injector for obstructions. Remove obstructions by brushing them away and by using a pin

or drill to clean the injector hole. Make sure that the injector hole does not become wider by using a

pin or drill that is larger than the size stamped on the side of the injector.

•

Pay special attention to the dual injection model. (See parts list for numbers). Clean the holes in

injector 44 very carefully. Gas soundness is achieved by a metal to metal connection with part 42.

So keep clean and inspect for damage and avoid making scratches on the contact surfaces of both

parts. Make sure that the small o-ring 47 (4 mm) is still in place in the seat behind the injector and

does not get lost during cleaning.

•

Clean the inside of the gas safety device and injector with compressed air. Make sure that the

pressure of the compressed air is not larger than the 1,5x the pressure mentioned on the data plate

(300 till 1400 mbar). Otherwise the rubber seals inside the safety device will become damaged.

•

Check the condition of the thermocouple sensor. Replace in case the tip is burnt-in already to avoid

unnecessary shut down later on. The tip of the thermocouple shall be 8 mm below the bottom plate

(27 or 28) of the burner.

•

Check all gas carrying parts and connections for gas tightness with leak detection liquid or soapy

water according the procedure in the standards applicable in the local installation situation. Never

use a flame for soundness checks!

•

In case a gas hose is used, check this carefully for cracks, wear and other signs of damage or

alteration. Replace it also when the maximum lifetime printed on the hose, or the maximum allowed

by local requirements, has been passed.

•

Commission the heater after maintenance and check it carefully during first ignition, firing and

extinguishing.

In case the heaters need to be stored for a long time, make sure that no dust, spiders, etc. can enter the

heater. Use the carton packaging box to store the heater, or a plastic bag if the box is not available

anymore, and close this carefully.

Daily maintenance

In dusty or dirty environments check and clean a heater every day. In case a heater is not cleaned

internally the heat efficiency will drop and the lifetime of the inner and outer burner globe will become

shorter or they will be destroyed. Also there is a possibility that carbon monoxide (poisonous) will be

produced and soot deposit will occur. To keep the heater free of dust is important.

Dust filter (if applicable)

Dust filters must be check every day and cleaned in case needed. Remove a filter before cleaning. Dry

dust can be removed by tapping the filter softly against a solid surface like the sole of a shoe. The dust

will fall off easy now. In case the filter is still not clean, brush the surface gently with a brush or clean it

with compressed air from inside to the outside. In case the dust is greasy, clean the filter in warm water

with a bit detergent. Make sure that filters are dry before placing them back. Even with the use of a filter

still check the heater regularly inside while very fine dust still will pass the filter and pollute the heater

internally.

Advice: Lots of farmers use a second set of dust filters. They replace the dusty ones directly with the

clean ones and clean the filters outside the barn to avoid unneeded disturbance of the animals.

Version: April 2016

manual number: 0009 0440EN