M3
CONDENSING WATER BOILER
26
34-1115 12/15
WARNING: Turn off all electrical service to the appliance when accessing the limit or other controls located
inside the control cabinet or inside the burner vestibule inside the top of the appliance. Close and fasten the
control cabinet and burner vestibule cover before restoring electrical service to the appliance. The cabinet
and burner vestibule contain High Voltage wiring and terminals. If the electrical service is not turned off and
these terminals are touched, a dangerous shock causing property damage, personal injury or death could
occur.
Coupez l'alimentation avant intervention sur l'appareil.
9.3 Operating Temperature Control
An adjustable digital operating control is located in the front control panel. To adjust the setpoint, push the SET key.
The upper display will show “St1”, while the lower display shows its value. Push the SET key again to modify St1.
The value of St1 will flash in the lower display. Adjust the set point by pushing the UP or DOWN keys. Push the SET
key again to confirm the value. To exit, press SET + UP or wait 15 seconds without pressing any key. For more
information, see “TempTrac Electronic Control Panel”, Section 10.1 in this manual.
Suivez les instructions dans le manuel d'installation pour modifier la température de l'eau de la chaudière.
9.4 High Water Temperature Limit Controls
The boiler is equipped with two temperature limit controls. One is an automatic reset limit control with a maximum set
point of 200ºF and one is a manual reset high limit control with a maximum set point of 210ºF. Either of these limit
controls will turn off the burner when the water temperature in the tank exceeds the set point of the control. These
controls are located inside the burner vestibule and are accessed from the top of the M3. The manual reset high limit
control is reset by pressing the limit reset button accessible through a hole in the metal cover on top of the appliance.
Pressing the reset on the high limit control will not cause the control to reset until the water temperature has dropped
below the set point of the manual reset high limit control.
WARNING: Turn off all electrical service to the appliance when accessing the limit or high limit controls
located inside the burner vestibule and close and fasten the burner vestibule cover before restoring
electrical service to the appliance. The burner vestibule contains High Voltage wiring and terminals. If the
electrical service is not turned off and these terminals are touched, a dangerous shock could occur, causing
personal injury or death.
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