Tarm Biomass Bonus Plus 30, Инструкция по установке и эксплуатации

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Bonus Plus Instructions Tarm Biomass 1-800-782-9927 Version 11/14 Page 31
from the thermal storage system. An added benefit is that domestic hot water can also be created in
the reservoir. Keep in mind that the amount of wood placed in the boiler’s filling chamber depends on
the size and the temperature of the heat storage reservoir. The boiler should not be fired beyond the
reservoir’s heat storage capacity. Do not add wood until the temperature in the thermal storage system
has fallen to 140-160 °F (60-72 ºC). so that the reservoir will again be able to absorb heat.
4.8 Creosote
Tar deposits are not normally a problem in a Bonus Plus which is fired as directed. If soft or tar like
creosote is found in the firebox it can be a symptom that the boiler is being filled with more wood than
is necessary. Glazed, crunchy and scaly creosote in the main firebox is common and expected.
Glazed, crunchy, or scaly creosote should never be found in the lower combustion chamber, heat ex-
change tubes, or in the chimney. When wood is burned slowly, it produces tar and organic vapors,
which combine with expelled moisture to form creosote. The creosote vapors condense in the rela-
tively cool chimney flue of a slow-burning fire. As a result, creosote residue accumulates on the flue
lining. When ignited, this creosote makes an extremely hot fire. The chimney and chimney connector
should be inspected at least twice monthly during the heating season to determine if a creosote build-
up has occurred. If creosote has accumulated it should be removed to reduce the risk of a chimney fire.
4.9 Adjusting Combustion
The Bonus Plus features adjustable and secondary air controls for optimal burning. The controls are
located on the front of the boiler between the loading and ash doors. The primary control is the upper
control
(A) and the secondary air control is the lower control (B) . An observation glass is located in
the center of the ash door. The flame should be yellow and pale bluish, and the flame length should be
as pictured below with flame just starting to pour out the front of the “U” or tunnel stone.
Do not open
the lower door while actively burning! It is normally only necessary to adjust the settings if the fuel
is changed (for instance if moisture content or wood species vary dramatically). If full output is re-
quired, both air controls can be opened 100%.
Boiler Operation, Maintenance, and Service > Daily Firing
Not enough secondary
air. The flame is too long
and orange / reddish: in-
crease the secondary air. Good setting. The flame
reaches the edge of the
tunnel stone and is yellow
and light blue-tinged.
Manual Air setting-Standard Values
Tree Type Primary Air Secondary Air
Hardwood 50% 50%
Softwood 75% 25%
Too much secondary air.
The flame is too short and
blue-tinged: reduce the
secondary air.
A
B
Fig. 4.7