SunEarth EPGX116-63, Инструкция по установке, эксплуатации и обслуживанию

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P.21
SUNSIPHON
The supplemental water heater should not be placed
directly on an uninsulated floor or concrete slab. In
order to prevent moisture damage to the base of the
tanks and reduce heat loss to the floor slab, the tank
should be raised off the floor on a pad.
4.11 Electrical Requirements
If your SunSiphon system serves as a preheater to a
supplemental gas or electric water heater, no addi-
tional electrical work is required. If the SunSiphon
is the primary water heater a properly licensed con-
tractor must make the 240 volt electrical connection
to the SunSiphon storage tank and, if included, the
optional electric time switch. Wire size, conduit and
fittings must conform to National Electrical Code
(NEC) requirements. If your solar contractor is
not allowed by state law to make these connections
consult a licensed electrician.
If the SunSiphon system serves as the primary water
heater or preheats a supplemental electric water
heater, we highly recommended that the contractor
install a time switch near the main electrical panel to
activate the electric resistance heating element dur-
ing inclement weather or periods of high use.
Never activate the circuit breaker controlling the
electrical heating element until the solar storage
tank is completely filled with water. This will
prevent “dry firing” of the heating element. The
electrical heating element will be destroyed almost
instantaneously if not completely submerged in
water when activated.
Once the solar storage tank is completely filled and
pressurized, turn on the electric power at the circuit
breaker and test the electric resistance heating ele-
ment and thermostat for continuity and voltage. If
the SunSiphon serves as a preheater for a supple-
mental electric or gas water heater no electrical con-
nection to the solar storage tank is required.
5) SYSTEM START-UP PROCEDURES
Having successfully completed the tasks outlined
in Section 4 above, the SunSiphon system has been
fully commissioned and is ready for normal opera-
tion.
6) NORMAL SYSTEM OPERATION
The SunSiphon solar water heating system is most
effective and will save the most money when no
supplemental energy is consumed to heat water.
For many months of the year the SunSiphon should
produce the majority of your hot water. If the
SunSiphon is your primary water heater the aux-
iliary heating element will provide some or all of
your hot water during periods of very high demand
or inclement weather.
When supplemental heating is required in single
tank systems do not use the circuit breaker as an
“ON/OFF” switch. Circuit breakers are not intend-
ed for that purpose. SunEarth strongly recommends
that your contractor install a time switch at a loca-
tion near the circuit breaker to provide a convenient
means of turning on and off the resistance heating
element as necessary.
Two tank SunSiphon systems are designed to accom-
modate two separate modes of operation. Your solar
system may be set to (1) serve as a preheater to your
supplemental water heater adding solar energy when
and as available, or (2) run 100% on utility power
during inclement weather or heavy use.
Figures 25 and 26 show the precise placement of the
valve handles above the supplemental gas or elec-
tric water for each of the three possible operating
modes. Set the valve handle for the desired opera-
tion. Check the valve handles at least once a year to
ensure proper system function and performance.
7) ISOLATING THE SOLAR STORAGE
TANK
The SunSiphon solar storage tank and the supple-
mental water heater can be isolated from the pres-
surized water system for repair or maintenance by
closing the isolation ball valve No. 18 (see figures
20 & 21).
Table 6
Electrical Specifications
48 Gallon 80 Gallon 116 Gallon
Watts 2,400
(2.4 kW)
4,800
(4.8 kW)
4,800
(4.8 kW)
Amps 10 20 20
Volts 240 240 240
Phase 1 1 1
Minimum 20 30 30
Breaker
Rating In Amps