Using a standard water heater tank, the solar water system
is tied into the tank at the top and bottom.
Inside the small box in front
of the storage tank (the "Energy Pack") is a recirculating pump, heat
exchanger, expansion tank, and the control panel (see pictures at right).
Enerworks has a CSA Certificate of Compliance (Cert# 1721596) pertaining
to Class 2831 06 HEATERS. This is a Solar Plus Supplemental Domestic
Hot Water Add-on package system, to be used with a CSA-approved water tank,
with indirect Forced Circulation, model EWRA that consists of up to a
maximum 4 Solar collectors (Model COL-4X8-TL-SG1-SD10) and 1 model Energy
Pack controller heat exchanger.
The Energy Pack is rated at 120Vac, 0.25 Amps, 30 Watts, 1ph, 60Hz, 50 PSI
max for the recirculating pump at 1.2 L/m flow rate on the solar loop side
(closed system of propylene glycol + distilled water, 50/50 mix), 150 PSI
max on the potable water side. Equivalent energy contribution with a
simulated load (hot water consumption) of 300L/d at 55°C or less.
The solar water heating system is in addition to your current water
heating system. On cloudy days, or in -30°C weather, you will need a
supplemental water heating system. The solar system should provide you
about 50% of the total water heating energy consumption. As the solar
heat is free, this should cut your water heating bill in half.