SDT/SET
Installation & Operation Manual
RESET BUTTON
THERMOSTAT
DIAL POINTER
THERMOSTAT
PROTECTIVE
COVER
16
5
Wiring
Electrical Connection
(Squire solar water heater with electric back up only -- SET models only)
Be sure to ground the water heater. The preferred way to ground is to use rigid metal conduit between
the main panel and the water heater junction box with approved end fittings. The separate ground wire
connection provided in the water heater junction box must also be grounded. Replace the junction box
cover and insulation after you have made all wiring connections.
CAUTION
The manufacturer’s warranty does not
cover any damage or defect caused by
the installation, attachment or use of
any type of unapproved devices into,
onto or in conjunction with this water
heater. The use of unauthorized energy
saving devices may shorten the life of
the water heater and may endanger
life and property. The manufacturer
disclaims any responsibility for such
loss or injury resulting from the use of
such unauthorized devices.
WARNING
CAUTION
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
eccessively high, the “High Limit Control (ECO)” breaks the
circuit to the heating element. Once the switch opens, it must
be reset manually.
Figure 5-1 Thermostat
The 4500-watt heating element in the Squire SET is wired
to the junction box on top of the heater and it requires
240-volt/ A.C. electrical service. The voltage requirement
and wattage load for the heater is also specified on the
heater identification plate. A 1/2" E.M.T. opening, located
on top of the unit is provided for a field wiring connection.
Consult an electrician to determine if your electrical service
is adequate for the additional load of the heater. The
electrical installation should be done by a qualified licensed
electrician. All wiring must conform to the National
Electric Code and local codes.
NOTICE
The cause of the over temperature
condition must be corrected first.
To reset, press the red button as shown in FIG. 5-1. Replace
the insulation and access cover before turning on power to the
heater.
Tank must be full before the unit is turned on! The heating element will be damaged if energized for even
a short period of time while tank is dry!
After the water and electrical connections have been made and
the tank has been fi lled with water, turn on the power to the
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
120°F. This temperature is satisfactory for the average household
use.
1. Turn OFF power to the heater.
2. Remove access cover and insulation. Do NOT remove the
thermostat protective cover.
3. Set the temperature indicator to desired temperature.
Replace insulation access cover.
4. Turn ON power to heater.
