ASDI
Installation, Operation and Maintenance Manual
– SECOND SUN – P/N 51856
1
Introduction
1
DESCRIPTION
The
SECOND SUN™
flameless catalytic tank heater is a new product that Algas-SDI has been developing and
testing for several years. The concept is a result of research that began in 1998. The intent of the heater is to
augment natural vaporization or to build pressure from the environment at times when the environment is not able
to supply
the needed energy through the “wetted” surface of the propane tank.
When used with propane, applications can range from boosting pressure in a tank to vaporizing small loads. Use
the heater during cold weather in lieu of a pump to boost pressure on a tank that is used with a vaporizer for
larger loads. The heater can both boost pressure and serve as a vaporizer for smaller loads up to 1MM Btu/hr. In
either case the containers can be stationary or portable since the heater does not need a permanent electrical
service. On a temporary basis, the
SECOND SUN™
may be used to boost the pressure in a container that has
been over drawn and refrigerated.
The
SECOND SUN™
tank heater is rated at 27-30,000 Btu/hr and should only be placed on 1000 gallon and
larger vessels up to 12000 gallons. Catalytic heaters, properly maintained and serviced, will not ignite a mixture of
fuel and air or sustain open flame combustion. A stainless steel grill is installed to protect the catalytic material
from damage such as incidental impact, insects or rodents but it is important to inspect the heater face for holes
before starting the heater.
Each
SECOND SUN™
operates and is controlled by tank pressure. The safety system includes three (3)
elements: an over-pressure safety switch that monitors pressure in the tank to which the tank heater is attached,
a high temperature switch that monitors the tank surface temperature should the liquid level fall below the heater,
and a pilot heater monitor that prevents an unwanted release of gas in the event the pilot heater temperature
drops below the point necessary to continue catalyzing the fuel. When any of the safeties are triggered, manual
intervention is required to restart the unit.
