Installation / Operation Instruction Manual
11
SECTION III
GENERAL INFORMATION
FEATURES
This water heater contains the following features:
HEAT EXCHANGER – The heat exchanger (coil) has 1” NPT female
fittings.
These water heaters with stainless steel single-wall heat exchangers
meet the Uniform Plumbing Code for installation in all potable water
systems provided that:
• The boiler water (including additives) is practically non-toxic,
having toxicity rating of class of 1 as listed in Clinical Toxicology
of Commercial Products.
• The boiler water pressure is limited to maximum 30 psig by
approved relief valve.
• The heat transfer medium is potable water or contains only
substances that are recognized as safe by the U.S. Food and
Drug Administration (FDA).
• The pressure of the heat transfer medium is maintained less
than the normal minimum operating pressure of the potable
water system.
ADJUSTABLE THERMOSTAT – The temperature may be adjusted
from approximately 80°F (27°C) to approximately 160°F(72°C). The
aquastat (thermostat) is factory set at 120°F(49°C). It is recommended
that lower temperatures be used to avoid the risk of scalding (refer to
Section VII of this manual). It is further recommended, in all cases, that
the water temperature be set for the lowest temperature that satisfies
your hot water needs. This will also provide the most energy efficient
operation of the water heater and minimize scale formation.
Setting the water heater temperature at 120°F(49°C) will reduce the risk
of scalds. Some locations require settings to specific lower
temperatures.