Sterlco 2016C (Former Compact Series) - Manual (Page 13)

COT-C Series Hot Oil Portable Temperature Control Units Page 13
Reservoir Tank
A reservoir tank with sight gauge is standard; usable capacity is
one (2) gallon (7.6 liters). The tank permits thermal expansion of
the heat transfer fluid, and provides make-up fluid.
!
WARNING
The reservoir tank may cause serious injury if it
ruptures from not being properly vented.
Make sure that the reservoir tank is always
properly vented to prevent tank rupture.
The reservoir tank drain is extended beyond the base of the unit for
ease of draining. Optional ball valves are available to further
simplify draining.