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SECTION 5 Start-up, operation and shutdown procedures (continued)
5.2.2
Syrup production
Below is a list of points to check when making maple syrup.
• Monitor the WATER LEVEL in each of the pans.
• Monitor the TEMPERATURE OF THE COMBUSTION CHAMBER.
- The reference temperature of the combustion chamber to maintain is: 1500 to 1600 °F (816 to 871 °C).
- LAPIERRE EQUIPMENT suggests using this reference as a temperature to familiarize yourself with the
operation of your evaporator.
- The chimney temperature MUST NEVER EXCEED 1000 °F (540 °C).
o If this is exceeded, set the PRIMARY air fan(s) potentiometer to POSITION 2 and the SECONDARY air fan
potentiometer to POSITION 9 (maximum) until the chimney temperature drops below 950 °F (510 °C).
- Compensate for the decrease in combustion chamber temperature by increasing PRIMARY air ventilation.
- If, despite the fact that you have gradually raised the potentiometer of the PRIMARY air fan(s) to POSITION 6,
the temperature of the combustion chamber remains 200 to 250 °F (93 to 121 °C) lower than the temperature
you have chosen to maintain, then you must perform a combustion chamber reload.
TABLE 4 | Temperature guide for syrup production
TEMPERATURE GUIDE FOR SYRUP PRODUCTION
Combustion chamber
Chimney
• COMBUSTION CHAMBER FUEL reloads.
- Turn the potentiometers on all air fans to POSITION Ø (Zero).
- To avoid flashback, wait 5 to 10 seconds before opening the combustion chamber door.
- Using a long poker, spread the coals in an even layer over the entire surface of the combustion chamber.
- Then place a one to two log thick combustion chamber fuel reload on the entire surface of the firebox. Start by loading the
rear and finish at the front.
- Close the door.
- Turn the PRIMARY air fan(s) potentiometer to POSITION 2, and the SECONDARY air fan potentiometer to POSITION 4.
- After 2 minutes, turn the PRIMARY air fan(s) potentiometer to POSITION 4, and the SECONDARY air fan potentiometer to
POSITION 2.
• Regularly check the Brix concentration of the syrup.
- Take the sample in the pan right next to the syrup outlet.
Lapierre Equipment |
Reference
Decreasing
PRIMARY air at POSITION 6 and
200 to 250 °F (93 TO 121 °C)
below the selected temperature
Maximum
FUSION X
2
EVAPORATOR
1500 to 1600 °F (816 to 871 °C)
Increase ventilation in PRIMARY air
Do a reload
1000 °F (540 °C)
| USER MANUAL | Version 01 - September 2022
20
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