PATRIOT MAX & STANDARD EVAPORATOR PAN SET 2019
Page:
4
a.
Wood should stay on the grates and a minimum of 2” to 5” inside from the door so wood fire does not
heat the arch face
b.
Criss-cross the wood as best possible so oxygen can reach all wood efficiently
c.
Do not hit the flues when loading wood
3.
When to fire
a.
Keep a consistent stack temperature with less than 150°F range
b.
Maintain the arch ½ to
⅔
full
c.
Fire consistently with small amounts of wood to maintain level of heat
d.
Use timer to stay on schedule with firings
e.
Adjust firing intervals as needed to maintain an even boil
Defoamer
The purpose of defoamer is to prevent foam build up in the pans. Foam build up will prevent proper evaporation of the
water from the sap. It will give a false liquid level to the float not allowing the incoming sap to flow in a consistent
manner. Inconsistent defoamer usage will create large volume adds of sap into the pans as the foam is reduced (when
you do add defoamer) and the float seeks to replace the level with incoming sap. The following items should be of
concern in the use of defoamer:
1.
Use defoamer on a regular basis. It is suggested you add defoamer to the flue pan each time you fire the
evaporator or every 5 to 10 minutes.
2.
Add defoamer primarily to the flue pan. Modify this only under certain conditions.
3.
The estimated usage is as follows: NOTE: This is based on the use of ATMOS 300 Defoamer
Pan Set Width (Inches)
Drops of Defoamer
24
3
30
4
36
4 to 5
40
5 to 6
48
6 to 8
60
7 to 9
72
8 to 11
If using sap that has been concentrated by an RO, use an additional drop for each foot of pan width
4.
NEVER add defoamer to the center compartment of the syrup pan. Use one drop at a time in the syrup (draw-
off) compartment only.
Minimize Reversal Effects
Reversal occurs when the boil in the pans is reduced (when firing is inconsistent, end of day, change pan flow direction):
1.
Maintain a consistent boil
2.
After the last syrup draw of the day, draw “sweet” from the syrup pan into a clean container. This will be added to
the boiling syrup pan at the beginning of the next boil and aid in setting up the gradient. The guideline for the
amount of “sweet” to draw is as follows:
Pan Set Width (Inches)
Gallons of “Sweet”
24
1 to 1 ½
30
1 ½ to 2
36
2 to 2 ½
40
2 ½ to 3 ½
48
3 ½ to 5
60
4 to 7
72
6 to 9
