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LEADER Half Pint Evaporator 

Year:  2014 

Page:  13 

 

 

2.

 

Wrap Teflon tape around each end of the stainless steel close nipples. 

 
 
 

 
 

3.

 

Thread a stainless steel nipple into each of the couplers on the boiling pan. 

 
 
 
 
 
 

 
 

4.

 

Thread a stainless steel ball valve onto each of the installed nipples. 

5.

 

Tighten so the handles of the ball valves are on top. 

 
 
 
 
 
 

 
 

6.

 

Install a thermometer (not supplied) on each side of the boiling pan.  The 
thermometers are mounted in the ¼” threaded fittings near the draw off valve 
couplers.  Remove the plugs from the fittings in the pan.  Teflon tape the 
threads on the thermometer and thread into the fittings.  Tighten and rotate 
the “7” so it is straight down for easier viewing standing next to the evaporator.  

 

 

First Boil 

 
The first boil is done to remove any residual materials from the pans and to “season” the bricking and insulation. 

1.

 

Prepare 15 gallons of a baking soda and water mix in proportion as follows: 

a.

 

1-1/4 ounce of baking soda 

b.

 

15 gallons of water 

2.

 

Fill the boiling pan with the baking soda : water mix to a level of approximately 3 inches. 

3.

 

To season the bricking, start by building a small fire in the fire box and very gradually build to a normal fire. 

4.

 

Boil the solution for approximately 30 minutes.  Watch the boil carefully and replenish the solution as needed to 
ensure the solution in the pan remains at approximately the 3 inch level.  

5.

 

Check all equipment:   

a.

 

No leaks at fittings 

b.

 

Pan is boiling evenly 

c.

 

Valves work properly 

d.

 

Draft is correct (pan boils evenly) 

6.

 

Drain  the  baking  soda  solution  from  the  pan.    Rinse  the  boiling  and  reservoir  pans  thoroughly  with  clean 
unsoftened, non chlorinated well or spring water.  Drain the water and dry the pans. 

 

Summary of Contents for Half Pint Evaporator

Page 1: ...Leader Evaporator Co Inc 49 Jonergin Drive Swanton Vermont 05488 802 868 5444 www leaderevaporator com Leader Half Pint Evaporator...

Page 2: ...9 POSITIONING 9 BRICKING 9 SETTING THE PANS 12 INSTALLING THE DRAW OFF VALVES 12 First Boil 13 OPERATION OF THE HALF PINT EVAPORATOR 14 THEORY OF OPERATION 14 GRADIENT 14 MAKING SYRUP 16 FLOW REVERSAL...

Page 3: ...and another small batch is drawn off Sap is boiled only long enough to make syrup By limiting the time heating and reheating the sap the caramelizing of the sugars will be reduced Reducing the caramel...

Page 4: ...ront 1 Back 1 Left 1 Right 1 Bottom 1 G Grate Rail 2 Draft Latch Bolt and Nut 10 24X 1 1 Draft Latch 1 I Corner Bracket 2 J Corner Bracket 2 J 3 Holed Steel Legs 4 H Grate Assembly 1 Machine Screws 20...

Page 5: ...aporator The following parts can be ordered as a kit Order 302435 of individually as listed Fire Brick Full qty 32 65003 Fire Brick qty 63 65006 Rail Gasket X 2 x 25 roll 65154 Refractory Cement 65001...

Page 6: ...r assembly Bolts should be inserted into arch so the heads are exposed and the threads are inside the arch Finger tighten bolts unless otherwise instructed 1 Mount Left and right panel to the bottom p...

Page 7: ...carpenter s square and tighten all the bolts in that corner All flanges should align Repeat until all four corners are complete 9 Tighten all remaining installed bolts 10 Use 20 X bolts and associated...

Page 8: ...latch should be pointed towards the front of the arch To ease the installation you may remove the door by pulling the hinge pin that connects the door to the arch front 13 Install the grates assembly...

Page 9: ...for 3000 F To apply cement completely skim coat the metal of the arch where the brick is to be installed Put about 1 8 on each edge of the brick to be installed and a skim coat on the side facing the...

Page 10: ...as illustrated Remember to coat the edges of the bricks with approximately 1 8 of refractory cement 5 The end bricks of the bottom row will be behind the bottom row of the full bricks when the sides a...

Page 11: ...e as much as possible then retighten the bolts If the bricks still do not fit trim the length of the brick 7 The first row of bricks toward the arch front should be up against the bolts in the side of...

Page 12: ...h Teflon tape 4 Screw the supplied brass lead free ball valve onto one end of the stainless steel nipple The assembly is referred to as the reservoir pan faucet INSTALLING THE DRAW OFF VALVES It is re...

Page 13: ...done to remove any residual materials from the pans and to season the bricking and insulation 1 Prepare 15 gallons of a baking soda and water mix in proportion as follows a 1 1 4 ounce of baking soda...

Page 14: ...ntrated liquid sap will push its way toward the more concentrated liquid In an evaporator you will be concentrating the percent of sugar from the incoming sap approximately 2 to the syrup product appr...

Page 15: ...consistently with small amounts of wood to maintain the level of heat Use a timer to stay on schedule for the firings 6 to 10 minutes depending on wood quality size and desired intensity of boil TIP F...

Page 16: ...e following is the recommended method for determining the draw off temperature a The sap will turn an amber or darker amber color b The temperature of the sap will reach 7 0 to 7 5o F above the boilin...

Page 17: ...ervoir pan into a container 3 Turn the reservoir pan 180 and move to 6 from the rear of the boiling pan 4 Refill the reservoir pan level to 2 3 to 5 Fill the boiling pan to the operating level 1 6 Sta...

Page 18: ...ck the hydrometer from its tube or box 2 Carefully inspect the hydrometer for any breakage If you suspect any cracks fill your test cup with hot water and immerse the hydrometer If it leaks then it is...

Page 19: ...d will need to be diluted with sap 7 Refer to the chart to determine if your syrup is light or heavy If the reading is higher than the number on the table your syrup is heavy and will need to be dilut...

Page 20: ...s brush the loose scale f If scale is removed flush the pan with unsoftened non chlorinated well or spring water If the scale is thick you may need to continue soaking the solution in the pan g When t...

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