Bonus Plus Instructions Tarm Biomass 1-800-782-9927 Version 11/14 Page 29
4.2 Items to Check Before Using
1. Check the heating system water pressure before using the system.
2. Ensure that the chimney connector pipe is connected to the chimney, properly sealed and
screwed together, and that the chimney is free of obstructions.
3. Ensure that all circulators are connected and operational.
4. Turn on the main electrical service switch.
5. Open any valves that may have been closed temporarily during set-up.
6. The transport protectors for the ceramic bricks are made of wood and will quickly burn. Do
not try to remove them. Assure that the tunnel stone is in the proper position.
7. Check the Operating Thermostat for proper setting. The stop on the underside of the knob
should be on the left hand side of the stop screw. The knob should be resting against stop
screw.
8. Confirm that the setting on the Honeywell
L4008B
(overheat aquastat) and L6006A Circula-
tor aquastat) are set to 200 °F (94 °C).
9. Confirm correct settings for the primary and secondary air shutters. See instructions in Section 4.9.
4.3 Boiler Lighting/Starting Process
1. Switch on the power to the boiler and turn on the Fan Switch
(F).
The pump switch
(E)
is not
used in North American and should be left in the off position. Make sure that the lower door
is securely closed. Lay about 10 pieces of kindling )approx. 1” cross section and 18” long) in a
random pattern on floor of the firebox. Crumple several sheets of newspaper and lay it on top
of the kindling. Light the newspaper.
2. Immediately turn on the fan by pressing the reset switch
(G)
. Leave the loading door open
slightly. Air will be pulled through the boiler and the wood will ignite quickly. Remain at the
boiler during this lighting stage.
3. The fire is well established once a small bed of embers has formed. With the fan on, slowly
open the upper door with care: only an inch or two for the first couple of seconds. Then load 3
to 4 small splits, followed by the amount of wood required to recharge your thermal storage.
Close the loading door.
4. During the initial firing of the boiler, or if fuel (wood) type is changed, both the primary and
secondary air shutters must be adjusted. Once the boiler has reached a water temperature of at
least 65ºC, adjust the primary and secondary air shutters according to Section 4.9. Then, using
the three figures shown on table, fine tune the secondary air setting while looking through the
site glass in the lower (ash) door.
Boiler Operation, Maintenance, and Service > Items to Check Before Using
NOTE
THE FAN SHOULD ONLY SWITCH OFF FOR SHORT PERIODS OF TIME DURING A
BURN-CYCLE. MAKE THE BEST POSSIBLE USE OF THE THERMAL STORAGE SYS-
TEM AND DO NOT ADD TOO MUCH WOOD.*
*
Standby time and starting/stopping of the fan do not give clean combustion. Furthermore, con-
densation will occur in the filling chamber, causing corrosion in the steel walls. Excessive
standby operation can also damage combustion aprons.
NOTE
THE BOILER MUST BE FILLED WITH WATER. WATER MAY NOT BE ADDED TO THE
BOILER WHILE IT IS RUNNING.
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