Kratki ARKE Serie Manual Del Usuario página 19

• use a poker, scrapers and a brush to clean cast iron elements
• the front glass should be cleaned using the preparation for this purpose (do not clean the cast iron
parts of the insert). Do not use abrasive cleaning preparations, as this will scratch the glass;
• cleaning the flue ducts should be carried out by a chimney sweeper and documented in the insert
documentation (duct cleaning is to be performed twice a year).
NOTE: All and any maintenance can be performed only when the fireplace insert is fully cooled down
with the use of protective gloves.
ANOMALIES IN THE OPERATION OF THE FIREPLACE INSERT
During operation of the fireplace, some anomalies can happen, suggesting irregularities in the insert
operation. This may be caused by improper installation of the fireplace without sticking to the existing
legislation or the provisions of this manual or due to external causes, e.g. the environment. The most
common causes of the insert malfunctions along with their solutions are listed below.
a) Smoke return with the fireplace door open:
- too sudden opening of the door (open the door slowly);
- insufficient air supply to the room where the fireplace is installed (provide adequate ventilation in
the room or bring air into the combustion chamber in accordance with the guidelines in the manual);
- atmospheric conditions;
- too little chimney draught (inspect the chimney flue).
b) Insufficient heating or extinguished stove:
- a small amount of fuel in the stove (fill the stove according to the instructions);
- too high moisture content used for burning (use wood with a moisture content of 20%);
- too little chimney draught (inspect the chimney flue).
c) Insufficient heating, despite a good combustion in the combustion chamber:
- low-calorie "soft" wood (use wood according to the recommendations in the manual);
- too high moisture content used for burning (use wood with a moisture content of 20%);
- too chipped wood.
d) Excessive dirt on the glass of the insert:
- low intensity of burning (do not use frequent firing at a very low flame, use only dry wood as fuel);
- the use of resinous softwood as a fuel (use only dry hardwood as a fuel, as provided in the operating
instructions of the insert .
- no air curtain (open the shutter to provide air onto the glass)
e) The proper functioning of the insert can be disrupted by weather conditions (humidity, fog, wind,
atmospheric pressure) and sometimes adjacent tall buildings. In the case of recurring problems, you
should seek expert advice from a chimney company or use a chimney cowl (e.g. the "fireman" type).
NOTE! In the case of slow burning, excess of organic products of combustion is generated (soot and
water vapour), forming creosote that can ignite in the smoke duct.
In such a case, rapid combustion takes place (large flame and high temperature) - referred to as the
chimney fire.
In the case of such a phenomenon:
• close the holes in the ashtray drawer, the cold air intake, and the slider holes in charge of the air
curtain;
• check the correctness of closing the front insert door;
• notify the nearest fire brigade unit.
STARTUP AND OPERATION OF THE FIREPLACE
GENERAL REMARKS
Fireplace inserts are designed for burning wood with a moisture content of 20% and lignite briquettes.
The use of coal, coke, coal derivatives, plastics, garbage, rags and other flammable substances is pro-
hibited.
19