User Manual

10
WIRING OF ELEMENT
Determine voltage and wattage from the rating plate
attached to the solar water heater. All external wiring,
connection, and overcurrent protective devices must be
provided and installed in accordance with the latest edition
of the National Electrical Code, local codes, and local utility
requirements. The solar water heater must be electrically
“grounded” by the installer. A green ground screw has been
provided on the solar water heater’s junction box.
The grounding electrode conductor shall be of copper,
aluminum, or copper clad aluminum. The material shall
be resistant to corrosion, and shall be of one continuous
length without a splice or joint.
Rigid metal conduit, intermediate metal conduit, or electrical
metallic tubing may be used for the grounding means
if conduit or tubing is terminated in fittings approved for
grounding.
Figure 6.
Flexible metal conduit or flexible metallic tubing shall be
permitted for grounding if all the following conditions are
met:
1. The length in any ground return path does not exceed
6 feet.
2. The circuit conductors contained therein are protected
by overcurrent devices rated at 20 amperes or less.
3. The conduit or tubing is terminated in fittings approved
for grounding.
Never use this solar water heater unless it is completely
full of water.
SOLAR WATER HEATERS EQUIPPED FOR ONE TYPE
VOLTAGE ONLY. This solar water heater is equipped
for one type of voltage only. Check the rating plate near
the bottom access panel for the correct voltage. DO NOT
USE THIS SOLAR WATER HEATER WITH ANY VOLTAGE
OTHER THAN THE ONE SHOWN ON THE MODEL
RATING PLATE. Failure to use the correct voltage can
cause problems which can result in DEATH, SERIOUS
BODILY INJURY OR PROPERTY DAMAGE. If you have
any questions or doubts consult your electric company.
If wiring from the fuse box or circuit breaker box was alumi-
num for the old tank, replace it with copper wire. If you wish
to reuse the existing aluminum wire, have the connection
at the solar water heater made by a competent electrician.
Contact your local utility to arrange for a professional elec-
trician.
BLACK
RED
BLACK
ELEMENT
RED
F
C)(66
F
(60 C)
F
C)(49
Figure 7.
THERMOSTAT
Each thermostat is factory preset at 120°F to reduce the
risk of scald injury. This setting has proven by experience
to be most satisfactory from the standpoint of operational
costs and household needs.
Solar water heaters installed in Florida require the
thermostat(s) to be set at 125°F. If you wish to adjust the
settings, see the “Temperature Adjustment” section of this
installation manual on page 11.
TEMPERATURE REGULATION
HOTTER WATER CAN SCALD: Solar water heaters are
intended to produce hot water. Water heated to a temperature
which will satisfy clothes washing, dish washing, and other
sanitizing needs can cause scalds resulting in serious
personal injury and/or death. Some people are more likely
to be permanently injured by hot water than others. These
include the elderly, children, the infirmed, or physically
handicapped. If anyone using hot water in your home fits
into one of these groups or if there is a local code or state
law requiring a certain temperature water at the hot water
tap, then you must take special precautions. Please see
Figure 8 and Table 2 for information regarding thermostat
settings. In addition to using the lowest possible temperature
setting that satisfies your hot water needs, some type of
mixing device, such as a mixing valve should be used at the