Solar Boiler™
•
Remove the cover from the Solar Boiler™. Turn the Solar Boiler™ OFF using
the switch located on the Delta-T Booster II.
•
Locate and remove the pressure relief valve attached to the vent tube at the
back of the unit.
Caution: Fluid may be HOT
•
Locate the fill tube at the side of the unit and remove the brass cap from the
fill tube.
Caution: Fluid may be HOT.
Using the wooden dowel provided check
the fluid level in the reservoir. This level should be about 8 - 12” on the dowel.
If the level is low contact your dealer or Thermo Dynamics Ltd. before continu-
ing.
•
If the fluid level is low inspect the system for signs of leakage. Inspect all vis-
ible fittings on the Solar Boiler™ and the connections at the solar collector on
the roof. Also inspect under the Solar Boiler™ case for signs of HTF on the
floor. The HTF, Propylene glycol USP, is very slippery and dries very slowly
and will remain on surfaces for an extended period of time.
•
The recommended heat transfer fluid is a 40/60 mixture by volume of Propyl-
ene Glycol USP and distilled water. Fluid should be added to the Solar Boiler
with a funnel to prevent spillage. When adding fluid, follow the steps 18 and
19 on pages 13 and 14.
•
The required volume of the HTF to fully refill the system is 4 – 6 liters (1.1 –
1.6USG)
Solar Boiler Heat Transfer Fluid Refilling Instrcutions
23
Fill Tube
Wooden Dowel
Pressure Gauge
Sensor Plug
