ELECTRICAL CONNECTIONS
Before any electrical connections are made, be sure that the water heater
is full of water and that the manual shut-off valve in the cold water supply
line is open. Check the rating plate and wiring diagram before
proceeding. This solar electric water heater was built and wired in
accordance with the Underwriters Laboratories testing approvals
requirements. The temperature limiting device is of the manual reset,
trip-free type and has been factory installed to interrupt all ungrounded
power supply conductors in the event of thermostat failure. Thermostats
are factory set and wired in accordance with the wiring diagram fastened
to the inside of the top access panel. The plumbing supplier in your area
ordered this water heater wired at the factory to comply with the existing
area codes, but local utility codes may require or allow other circuitry.
Consult your local power company to determine the correct electrical
hook-up in order to meet local utility and building codes and in order to
obtain the most economical rates. Also check to find out if you are
required to obtain a permit before starting the installation. The following
chart shows the recommended fuse size for the maximum water heater
wattage. The maximum wattage and rated voltage are shown on the water
heater data plate. The water heater must be well grounded. A green
ground screw is provided at the electrical connection point for
connecting a ground wire.
The controller may be mounted directly on the top of the solar storage unit.
Wires are provided from the sensor mounting stud to the top of the water
heater. Attach the tank sensor to these wires and mount the sensor to the
tank using the stud provided on the tank. This stud is located under the
cover on the lower front of the water heater. A tank sensor may be
provided as an option, in which case, it may be pre-mounted and wired.
Attach the wires through the top of the unit to the terminals on the Solar
Differential Control.
Before closing the switch to allow electric current to flow to the water
heater, make certain that the water heater is full of water and that the cold
water inlet valve is open. Complete failure of the heating element will
result if it is not totally immersed in water at all times. When the switch
is closed, the operation of this solar electric water heater is automatic. The
thermostats are preset to the “HOT” setting to provide a water
temperature of approximately 120°F (49°C) to reduce the risk of scald
injury.
Care must be taken whenever using hot water to avoid scalding injury.
Certain appliances require high temperature hot water (such as
dishwashers and automatic clothes washers).
TO FILL THE WATER HEATER:
1. Close the water heater drain valve by turning the knob clockwise.
2. Open the cold water supply shut-off valve.
3. Open several hot water faucets to allow air to escape from the system.
4. When a steady stream of water flows from the faucets, the water heater
is filled. Close the faucets and check for water leaks at the water heater
drain valve, combination temperature and pressure relief valve and the hot
and cold water connections.
TO DRAIN THE HEATER:
Should it become necessary to completely drain the water heater, make
sure you adhere to the following steps:
500
10A
5A
5A
1000
15A
10A
10A
1250
15A
10A
10A
1500
20A
10A
10A
2000
25A
15A
10A
2500
30A
15A
15A
3000
35A
20A
20A
3500
40A
20A
20A
4000
35A
25A
4500
30A
25A
5000
35A
30A
5500
35A
35A
6000
40A
35A
MAX VOLTS
MAX
WATTS 120V 208V 240V
RECOMMENDED FOR AMPERAGE
Water temperatures over 125°F (52°C) can cause severe burns
instantly or death from scalds. Children, disables, and elderly
are at highest risk of being scalded. See “Temperature
Adjustment” section of this manual before setting thermostat at
water heater. Feel water before bathing or showering.
Temperature limiting valves are available; consult local
plumbing supplier.
DANGER
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