18
Installation Manual
After the water and electrical connection have been made and the tank has been filled with water,
turn on power to heater. The heater is now operational.
THERMOSTAT ADJUSTMENT
The thermostat is located in the front of the heater. The access cover must be removed to adjust to
the factory default setting of 119°F. This temperature is satisfactory for the average household use.
If an adjustment is necessary, turn off the power to the heater, remove the black access cover and insu-
lation. The thermostat protective cover should not be removed. Set the temperature indicator to the
desired temperature, replace insulation and access cover. Turn on power to heater.
COMBINATION “THERMOSTAT AND
HIGH LIMIT CONTROL (ECO)“
This heater is equipped with a combination
thermostat and high limit safety. If for any
reason the water temperature becomes
excessively high, the “High limit control
(ECO)” breaks the circuit to the heating ele-
ment. Once the switch opens, it must be
reset manually. However, THE CAUSE OF
THE OVER TEMPERATURE CONDITION
MUST BE CORRECTED FIRST. REFER TO THE
TROUBLE SHOOTING SECTION for possible
causes. To reset, press the red reset button
as shown in Figure 3-6. Replace the insula-
tion and black access cover before turning
on power to the heater.
CHARGING THE SYSTEM
Solar Tank
Fill the solar tank with water. Do this by open-
ing the cold water isolation ball valve to the
solar tank. See Fig. 3-2. Inspect all fittings for
leaks. The solar collector loop should be pressure tested with air (25 lbs.) before you pressurize the
solar collector loop with glycol. Mix the DowFrost Propylene glycol and distilled water in accordance
with the DowFrost Data Sheet in the back of this manual. The charging process will require a low
flow diaphragm pump to fill and pressurize the collector loop.
Solar Collector
Connect the discharge side of the pressure pump to the fill valve. See Fig. 3-2/3-3. Place the pump
suction side hose in the glycol solution. Close the ball valve (#11). Connect a second hose to the
drain valve (#10) and place the other end of the hose in the empty bucket.
PART 3: SOLAR WATER HEATER INSTALLATION
(CONT’D)
n
DANGER
Water temperature over 125 degrees F. can cause severe burns
instantly or death from scalds. Children, disabled, and elderly are
at the highest risk of being scalded. See instruction manual
before setting temperature at water the heater. Feel water before
bathing or showering! Temperature limiting valves are available.
BEFORE
SERVICING
TURN OFF
POWER
RESET BUTTON
COVER
THERMOSTAT
PROTECTIVE
THERMOSTAT DIAL
POINTER
Fig. 3-7
LP-200-J
REV. 5/23/07
