Hubbell Electric Heater Company V20 - Manual (Page 7)

7
OUTER SHELL, INSULATION, AND SUPPORTS
The tank is encapsulated in 2-inches of high-density fiberglass insulation. The protective shell is
constructed of galvaneel and is coated with a durable silver hammertone finish. Heavy gauge steel
support legs are provided.
OPTIONS
The following optional features may be included in your water heater. Reference included drawing
specific to your heater for further details.
Low Water Cut-Off
Used as a safety device, the electronic low water cut-off is
used to detect a low water situation and disengage the
operating coils in the magnetic contactor(s). Once the
condition is remedied, the low water cut-off switch is
automatically reset.
Fused Low Voltage Transformer
A fused low voltage transformer may be supplied. This option
is standard only in 480-volt systems with low water cut-offs to
step down the voltage to 240-volt for safety when working with
control circuits. As an option, a transformer may be installed on
any unit to step down the voltage to 120-volts.
Stainless Steel Outer Jacket
An optional stainless steel outer jacket may replace the standard galvaneel jacket.
Watertight Jacket
The Jacket may be constructed in a watertight manner for wet/humid locations.