Kuma Stoves AR-8, AR-7, AR-10 user manual Lighting and carburetor adjustments, PRE-LIGHTING Checks

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SECTION 4

Lighting and carburetor adjustments

PRE-LIGHTING CHECKS:

The installation should be inspected to ensure that the work is complete and the workman- ship is satisfactory. No stove should be lit if any part of the installation does not comply with the relevant standards and regulations.

The oil tank should be examined to confirm there is a supply of the correct grade of oil, that a filter and a working isolation valve are fitted. Having verified that the oil pipe work up to the stove is complete and that the fire valve (if used) is closed, the tank isolation valve should be opened and the pipe work inspected for leaks. The pipe into the inlet of the metering valve should be uncoupled, the shut off valve opened and a minimum of one quart of oil collected into a suit- able receptacle. If dirt or water is present in this sample, additional oil should be allowed through the pipe work until it is free from contaminates. The fuel pipe work should be reassembled and all connections checked for leaks and tightened as necessary.

For 7” Burner Models: Laying on top of the catalyst inside your AR-7 burner model stove is a stainless steel top burn ring. It is important that the ring be in the proper position. It comes in the proper position from the factory. Should the height of this ring change, it is easy to re-adjust by bending the three tabs that rest on the catalyst top up or down. It is very impor- tant that the “cupped” part of the ring is facing up (as if it would hold water). The stove will not burn properly if the ring is face down. Locate the two continuous rows of air holes circling the burner top. The top ring tabs should set on the catalyst top so that the outer edge of the ring comes out right between those two rows of air holes. In 8” models there is a flat upper burn ring that lays face up on the burner top, the cupped part of the ring facing up. The top row of holes should be visible.

LIGHTING:

Initial lighting should be undertaken by a qualified technician, with a suitable probe- type manometer for checking the flue pressure.

The most efficient method of tuning the stove is at the start and with the proper equip- ment. The customer who will be operating the stove is an important partner in this process, so a full understanding of how the stove operates and is maintained is invaluable.

Shortly after the stove is lit an air pressure reading should be taken to see if the draft pressure readings are suitable. To take this reading, drill a hole suitable for the manometer probe size in the stove pipe directly above the stove outlet. After pressure readings are finished, simply plug the stove pipe hole with a suitable sized screw.

Lighting the stove:

1.Remove the catalyst (stainless steel mesh cylinder) and top burn ring (AR-7

&AR-8 only) from the burn pot.

2.Turn all supply valves on.

3.Turn control knob on carburetor to setting 1.

4.Press on/off control lever on carburetor to start (it pulls up and clicks to shut stove off and pushes or clicks down to on position).

5.When a small amount of oil begins to appear in the burner bottom, take a wooden kitchen match and light the oil (a small piece of crumpled tissue paper can be lit and tossed into the burner if desired, or use of an alcohol-gel fire starter is preferred).

lighting instruction continued on the next page