Hsotram HK2, Manual

Page: 8 / 36

MANUAL
HK2 – HK4 25-08-2014
Page
8
1.3.3 First and regular use
Before beginning, assure the good fitting of the suction fan, of its electrical supply, of the good
fitting of the combustion tunnel and the good setting of the primary and secondary air inlets.
1.
Switch on the boiler - (F) to "1". Make sure that the lower door is closed and secured (locking
screw). Load a little amount of paper, small pieces of kindle wood, in sufficient quantity and
again some papers on top, then light them up.
2. Turn on immediately the suction fan by pressing the (D) button.
Start from cold boiler (actual flue gas temperature < minimum flue gas temperature) will
boost the fan speed until the timeout has passed or the minimum flue gas temperature is
reached – see parameter list in paragraph 3.9.
The air needed for combustion is already here, the fire starts very fast. Let the loading door a
bit open to ensure enough air for the ignition of the kindle wood (1 to 3 minutes, stay ahead
to watch)
3. The combustion has well ignited and a small bed of embers has formed. Open the upper
door with care: only a few centimeters first for a couple of seconds. Then load 3 to 4 thin
logs, then the necessary quantity of wood and reclose the loading door.
4. At the first use or in case of a change in the type of wood: as the boiler water gets hot
(>65°C): fine tune / adjust the primary and secondary air according to the table of paragraph
1.3.4, then fine tune the secondary air with the help of three figures shown on paragraph
1.3.5 while looking through the sight glass of the ash-discharge door in front of the tunnel. If
the inspection glass is dirty, unscrew the lid and clean the glass with the aid of a scouring
sponge.
The air adjustments need no longer to be modified, except in case of changing the
characteristics of the fuel
.
The other starting operations are carried out at each new heating.
NOTE :
If pressing the fan button for more than 2 seconds as the fan is already running and the boiler is not
any longer in the start phase the fan will speed up for 5 minutes. This function is used for refilling the
wood log chamber for continuous combustion. The extra fan speed is used to both make the flue gas
by-pass more efficient and to re-start the combustion.
A
B
C D
E
F