The PROPAC 10D™ from Energy Labs is a fully assembled solar heating
system fluid handling package. It employs the proven, reliable, low
maintenance system configuration known as “Drainback”. All pumps,
valves, plumbing, sensors, controls and heat exchanger are installed
and tested prior to shipment. When the PROPAC 10D™ arrives it is fully
ready to connect to your heating system without further assembly.
Collector interconnect lines can be either copper or PEX.
All PROPAC 10D™ systems are equipped with an innovative, intelligent
control system that maximizes energy capture from the solar array. All
sensors are included along with instructions and a warranty card. 

The Drainback system configuration for solar heating is the single most trouble free, reliable and least costly to install active type system. Drainback systems are the easiest to operate and maintain. Years of field experience have gone into the design of the PROPAC 10D™ heat transfer units. A unique feature is its ability to be installed in the most advantageous location. It can be remote from either the collectors or the system load storage, or both. There are no valves of any  kind required in the collector array or piping.

PROPAC™10D Integrated Drainback system specifications:

•  Fully integrated, self contained
•  160 ft² maximum collector surface area
•  320 gallons maximum storage capacity
•  Freeze proofs collectors
•  No remote valves
•  No collector scaling
•  TIG welded 304 stainless 10 gallon reservoir
•  Serviceable Stainless Steel heat exchanger
•  Quiet operation
•  Pre-tested, Factory certified
•  Compact design
•  Over temperature protected
•  Dual bronze pumps

PROPAC 10D Technical DATA