free classifieds cars
Solar Hot Water Systems arrow Guardian 120-64D Complete Solar Hot Water System

Guardian 120-64D Complete Solar Hot Water System

Price: $0.00

Free heat from the sun, provides over 90% of your Hot Water.

Intelligent automation is the key to the Guardian Solar Water Heater's outstanding efficiency and self-sufficiency. The Guardian Solar Water Heater will turn on and off daily, collecting heat whenever it is available. The automatic controller alerts the pump when to run. It also alerts the automatic check valve to open, simultaneously. The pump then circulates colder water (from the bottom of your special solar storage tank) through your solar collector(s), and returns the heated water to the tank. This cycle continues as long as sun is available to provide heat to your water. When there is no heat available, the controller turns the pump off, and closes the check valve to prevent any loss of heat from the tank.

Differential system pump runs off of household 120 Volt AC power.

This is an Open-Loop System

2 Solar Collector are 4'X8' each

Storage Tank is 120 Gallons and includes a 4,500 Watt back-up heating element. 

System also includes...

Collector flush mounts, flashing, lag bolts, roofing sealant, copper fittings, 3 roof valves with fittings, 50ft of sensor wire, 50ft of 1/2 inch copper tubing, 60ft of pipe insulation, U-V paint for insulation, circulation pump, controller with sensors, ball valves, boiler drains, 6ft of 3/4 inch insulation, and owners manual.

The D System utilizes a differential control to sense the temperature differences between water leaving the collector and the coldest water in the bottom of the storage tank. The control turns the pump on when the water in the collector is about 20F warmer than the water in the tank. Similarly, the pump is turned off when the temperature variation is approximately 5F. This process ensures that the water is always being heated while the pump is operating.

A thermally operated valve is in-stalled at the collector to provide freeze protection where required. This valve will open to let warm water flow through the collector whenever temperatures approach freezing. As an alternative, the collector can be manually drained by closing the isolation valves and opening the drain valves (located above the storage tank).

Last Updated: