Harman VF3000 Boiler User Manual


 
6
Always empty the hopper when not burning for more than a week. When left standing
for long periods with wet coal, the pusher block will rust and corrode, causing it to seize.
If the stoker is then turned “on”, damage to the pusher assembly and feed motor will
result. This will be considered neglect and will void the warranty on those parts. Always
check to see if moving parts are free before using if the unit has not been burned for a
period of time. This can best be determined by shaking the adjuster rod.
Freshly delivered coal is typically watered down to minimize dust when loading and
unloading. Wet rice coal does not ow as well as damp or dry coal, and may bind or
bridge in the hopper. We do not recommend loading your hopper with wet coal. If you
must burn wet coal, the feed rate will likely need increased, in order to get the same size
re. As the wet coal in the hopper dries out, the feed rate will need decreased to avoid
over-feeding. Using wet coal, in an emergency, will likely not damage your stove as
long as it is hot and burning at the time. The damage is caused when the hopper has wet
coal in it when the stove is cold. This will cause rust and corrosion which is considered
neglect and will not be covered by the product warranty.

This unit must be connected to a chimney capable of providing a -.04 minimum draft.
 If the chimney has no draft, coal gases may escape from the unit and stove
pipe. These gases are toxic and can be fatal. It is recommended that a CO detector be
installed to warn of this condition.
Warnings
 The VF3000 must be installed on a non-combustible oor.
The non-combustible oor must also extend a minimum of 18” in front of the rebox
door, and 8” to the sides. Maintain a minimum of 18” of clearance to combustible
walls, 24” to the ceiling and keep combustible materials a minimum of 36” away from
in front of the appliance.
This boiler may be connected to an existing boiler heating system. Inter-connection may
be done in a series or parallel conguration. Consult with your licensed plumber or HVAC
professional to determine the most effective installation for your heating needs.