PDF《*** OWNER'S MANUAL ***》

*** OWNER'

S MANUAL *** SOLAR WATER HEATER APPLIANCE SYSTEM TYPE: DIFFERENTIAL CONTROL SYSTEM MODEL The solar energy system described by this manual, when properly installed and maintained, meets the minimum standards established by the Florida solar energy center, in accordance with section 377.

705 Florida statutes. This certification does not imply endorsement or warranty of this product by the Florida solar energy center or the state of Florida. INTRODUCTION Congratulations on your purchase of a new solar direct water heater appliance. Your system has been carefully installed using the finest materials and components available designed to give years of trouble free service. PLEASE TAKE TIME TO READ YOUR OWNER'

S MANUAL - It will answer many questions about your system;

how it works and how to maintain it. After you become familiar with your manual, place it in a safe and easy to obtain location. We suggest that you keep this manual with your other solar related papers for reference;

or, attach it to your water heater. SYSTEM OPERATION Your system is operated by an automatic controller. This controller senses the temperature of the collector and the temperature of the bottom of the tank. When the temperature of the collector is hotter than the tank bottom by

10 degrees, the controller turns the pump on and opens the motorized valve (optional). The pump circulates the water from the bottom of the tank, through the collector, and back to the middle of the tank. The water is heated by the sun as it passes through the collector. When the temperature difference between the collector and the tank decreases to only two degrees, the controller turns the pump off. IMPORTANT: the controller switch should always be left on the automatic position to ensure maximum solar gain and the drain/fill handles should be in the fill position unless draining for freeze protection, maintenance, or extended periods of non-use (i.e. vacation). SYSTEM DRAINING To drain the collector and piping above the tank, follow these instructions: (1.) Turn the controller to the off position, or unplug it. (2.) Connect a garden hose to the pump side drain valve and place a bucket under the opposite drain valve. (3.) Turn both isolation valves to the closed position and open both drain valves to allow the water to exit. A typical system holds approx.

2 -

3 gallons. Allow the system to remain drained for the entire night, to insure total drainage. SYSTEM START UP To fill the collector and begin heat collection, follow these instructions;

(1.) Close the pump side drain valve. Remove the hose from the drain valve on the pump side and place it on the opposite drain valve and open drain valve. Open the isolation valve on the pump side to begin filling the lines with water and air will begin to exit from the drain hose. (2.) When all the air is purged from the system (approx.

30 seconds) close the drain valve with the hose to stop the purging action, and open the isolation valve below it. Remove the hose. (3.) Turn the controller to the automatic position. The system will now operate as described in the system operating sect. * If your system does not have the configuration described above, call for instructions. FREEZE PROTECTION WARNING: SOLAR COLLECTORS ARE SUBJECT TO FREEZE, EVEN IN FLORIDA. The water temperature in the collector can be below the freezing point even when the outdoor air temperature is

40 degrees. Your system is equipped with two methods of freeze protection: (1.) MANUAL DRAINDOWN It is recommended that the homeowner, when possible, drain the collector when the temperature is expected to drop below