V WIRING
All wiring must be done in accordance with
National, State and local codes. Adhere to the
National Electric Code - ANSI/NFPA 70-1990 in
the absence of any other codes.
Power must be shut off before installing or
servicing the heater. A separate shut off switch
should be installed to support future servicing or
an emergency shut down. The entire heating
system should have its own designated electrical
circuit.
The Techtanium heater operates in much the
same way as an additional heating zone, either
utilizing the same circulator as household
heating or its own circulator. The heater
temperature is maintained by the use of an
immersion type aquastat. The aquastat is
installed into the immersion well on the heater
and secured by tightening the set screw or
clamp.
The aquastat operates in much the same way as
a thermostat. When the temperature falls inside
the tank the set of contacts make (close) and
when the temperature rises the contacts break
(open).
The aquastat should be tied into the boiler
system and controls. When the tank calls for heat
the aquastat contacts close and signal the boiler
controls, allowing the boiler to maintain
temperature and proper operation of the tank
circulator.
DHT recommends the use of a priority control to
help the boiler maintain desired temperature and
satisfy the tank's BTU requirements.
The Techtanium heater recovery ratings are
based on the boiler's ability to mainatain 180
degrees Fahrenheit. It is important that the
installer, plumber or heating technician
responsible for installing the heater, make
certain that the boiler capacity (BTU) is adequate
to satisfy the heater's BTU requirements.
Water temperature over 125
º
F. can
cause severe burns instantly or death
from scalds.
Children, disabled and elderly are at
highest risk of being scalded.
See instruction manual before setting
temperature at water heater.
Feel water before bathing or
showering.
Temperature limiting valves are
available, see manual.
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