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DO NOT BURN WET COAL
operation. The timer will continue to control the stove until
the room temperature drops below the thermostat set point
temperature. At this time, the stove will operate constantly
until the room temperature reaches the thermostat set point
again and the cycle repeats.
It should be noted that the timer adjustments do have a
0 minute position. The default conditions for these adjust-
ments set for 0 minutes are as follows: "on time" 0," off time"
0 unit will run constantly; "on time" greater than O," off time"
0, unit will run constantly; "on time" 0," off time" greater than
0, unit will cycle on and off with the "off" time being the
controlling timer. It is not recommended that the 0 minute
time be used on any of the adjustments. The 0 minute time is
an invalid condition on the stoker control.
When the stoker control first takes control in the
maintenance cycle, two timers are activated, the "distribution
blower" timer and the unit "off" timer.
The "distribution blower" timer is an off delay timer.
This means after the combustion blower and coal feeder turn
off the distribution blower will operate for a programmed
period of time before turning off. The stoker control timing
range for this function is 0 minutes to 15 minutes.
The purpose of having the off delay timer on to distri-
bution blower is to exhaust the excess heat in the stove that
is inherent after the combustion blower and coal feeder turn
off. For this reason, it is not recommended that a 0 time
setting be used. This will minimize any possibility of over-
heating the stove.
The other timer, which begins when the stoker control
first takes control, is the "off" timer. This function of the
stoker control is adjustable from 0 minutes to 15 minutes.
Programming this timer with a valve lets the stoker timer
know how long to keep the combustion blower and the coal
feeder turned off between maintenance cycles.
Once the off timer has finished timing and the room
temperature has not fallen below the thermostat set point, the
"on" timer function will begin. The programmable range for
this function is also 0 minutes to 15 minutes. Once the "on"
timer has started, all output (combustion blower, distribution