Harman Stove Company Harman Stove The Harman Magnum Stoker Stove User Manual


 
13
DO NOT BURN WET COAL
blower, coal feeder) receptacles will become active for the pro-
grammed amount of time. When "on" timer has finished timing, the
stoker control will recycle and the "distribution blower" timer along
with the "off" timer will once again become active.
The final operator interface is the switch on the front panel
adjacent to the receptacles. This switch in the "on" position allows
power to the coal feeder motor receptacle. In the "off" position,
power will be removed only from the coal feeder motor receptacle.
This switch in the "off" position, will stop the coal from moving
across the grates and allow for easy lighting of the fire. Once the
fire has been established move the switch to the "on" position.
How to Operate the Stoker Control
There are four operator interfaces on the stoker control.
The operator interfaces are one rocker switch and three, 16-
position rotary switches.
The rocker switch is a power switch that controls only the
coal feeder motor. For normal operation, this switch should be
placed in the "on" position. This switch's operation can be verified
by a small red light above the coal feeder receptacle being on when
the switch is on.
If the stove needs to be shut down, simply place the rocker
switch in the "off" position. The small light above the coal feeder
receptacle will turn off.
The other three switches are the customer's adjustments for
the timers (on time, off time, distribution blower time). These
switches can adjust each timer individually from 1 minute to 15
minutes in 1 minute increments. Do not set timers to 0.
The "on" time and the "off" time should be programmed to a
minimum time that keeps the coal burning during the maintenance
cycling mode. The distribution blower time should be programmed
for a time which is long enough to move the excess heat from the
stove to the room heated. If this time is programmed for a longer
time than the "off" time the distribution blower will operate con-
stantly. This will have no damaging effect on the stoker control.
Recommended timer settings to start are, "on" 4 minutes,