Heat Sensor; Monitor Shutdown; Recovery For A Power Failure; Recovery From Overheat Condition - Monitor GF3800 Servise Manual

MONITOR HEATING SYSTEM
Section 3: Operation
3-1 CHEAT SENSOR
Heat Sensor is located on the rear of the cabinet. It
is recommended to leave the sensor in its original
mounted position. However should relocation be
necessary, choose a location for the sensor that is
not in the path of direct sunlight, drafts or the flow of
warm air from the heater. Loosen the screw and re-
lease the sensor from the rear of the cabinet. Fas-
ten the sensor to the wall with the screw.
3-11 MONITOR SHUTDOWN
A simple one-step procedure is utillized to shutdown
the Monitor:
Press ON/OFF push-button switch to position OFF;
the OPERATION indicator will extinguish.
IMPORTANT: Once heater has shut down, it can-
not be restarted until post-purge
cycle has been completed. If
ON/OFF switch is left in position
ON, Monitor operation will auto-
matically restart upon completion
of post-purge.
3-12 RECOVERY FROM A POWER FAILURE
It power to the heater is interrupted, a thud-like noise
may be heard in the combustion chamber. This is
normal, and should not cause alarm.
For power interruptions of up to 30 minutes, the set
memory is kept and will resume operation automati-
cally with the set memory.
For power interruptions beyond 30 minutes, your
heater will resume operation (after a 3 minutes cool
down period) in the MANUAL mode and maintain
room temperature according to the previous setting
temperature you've selected in case of manual oper-
ation before power interruption, the initial setting
temperature (60°F) in case of automatic operation
before power interruption.
When the heater resumes operation, The Display
Window will show 88:88 indicating the need to reset
the clock and the day of the week for automatic op-
eration.
CHILD LOCK:
NOTE: The CHILD LOCK will help to prevent acci-
dental operation as well as small children
from altering controls.
To operate the CHILD LOCK simply hold the "CHILD
LOCK" Button down for 3 seconds, or until you hear
two short beeps. The function is activated imme-
diately and the "CHILD LOCK" Light will illuminate.
To deactivate the CHILD LOCK simply hold the
"CHILD LOCK" Button down for 3 seconds, or until
you hear two short beeps. The "CHILD LOCK" Light
will go out.
The lock can be deactivated at any time in this way.
During normal operation the CHILD LOCK may be
activated and all controls other than the OFF switch
will be locked. Deactivating the lock releases the
controls. If the lock is activated while the heater is
turned OFF, then all functions will be locked. If the
heater is Turned OFF while the CHILD LOCK is acti-
vated, if cannot be turned ON again until the lock is
deactivated.
3-13 RECOVERY FROM OVERHEAT CONDITION
The Monitor is protected against damage resulting
from an overheat condition by 115/110°C
automatic reset thermostat.
In the event of an overheat the thermostat is trig-
gered to cut off the flow of gas to the Burner, the
flame is extinguished automatically, and user is aler-
ted to the overheat condition by indicating the code
"E17" in the display window.
To recover from an overheat condition, proceed as
outlined below:
STEP1: Turn OFF Heater
STEP2: Allow Monitor Heater to cool
NOTE: Be sure that heater is cool to touch.
A period of 30 to 45-minutes should be sufficient to
permit heater to cool completely.
STEP3: Unplug Heater
Disconnect heater power cord from wall outlet.
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