Velux CLI U12 SD0W118 El B/U, Установка, эксплуатация и обслуживание

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28 – Part 3: Solar water heater system installation Part 3: Solar water heater system installation – 29
Electrical connection
(VELUX solar water heating system with electric back-up only)
Refer to the Installation/Operation manual provided with your solar storage tank, and keep it with this manual at all times.
!
WARNING
Tank must be filled with water before unit is turned on! The heating element will be damaged if energized for even a short
period of time while tank is dry!
!
CAUTION
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’ve 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.
The heating elements in the solar storage tank are wired to a junction box on top of the water heater for 240 volt / 4500 watt
A.C. The voltage requirement and wattage load for the heater is also specified on the heater identification plate. 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 per local codes.
Solar water heater single element
240 volt AC-4500 watt elements.
#12 AWG wire suitable for at least 75
degrees is to be used.
Minimum branch circuit protection
must be 25 amps
Dual Element, Non-Simultaneous Operation, Single Phase
L1 L2