Introduction; Description/Overview; Model Selection; Safeties - Algas SDI SECOND SUN Manuel D'utilisation Et D'entretien

Introduction 1
Description/Overview
The SECOND SUN™ line of flameless catalytic tank heaters are a unique product in the industry which Algas‐
SDI has been developing and testing for several years. The concept is a result of research which 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 area of the LPG
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
2.0 MM Btu/hr (586 kW). In either case the containers can be stationary or portable since the heater does not
need a permanent electrical service. The SECOND SUN™ is best suited for temporary, non‐permanent
installations and may be used to boost the pressure in a container that has been overdrawn and refrigerated.
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.
Model Selection
3 3
The SS10 is rated at 10,000 Btu/hr (2.9 kW) input and is designed for 500 – 1,000 gal (2.0 m ‐ 4 m ) tanks. The
3
SS30 is rated at 30,000 Btu/hr (8.8 kW) input and is designed for installation on 1,000 ‐ 12,000 gal (4 m – 45
3
m ) tanks.
Safeties
Each SECOND SUN™ operates and is controlled by tank pressure. The safety control system includes three (3)
elements: an over‐pressure safety switch that monitors LPG tank pressure, a high‐temperature switch that
monitors the tank surface temperature, and a pilot heater monitor that shuts down the heater if the catalytic
reaction ceases. When any of the safeties are triggered, manual intervention is required to restart the unit.
6 ASDI Operations and Maintenance – Second Sun – P/N 52793