A.O. Smith DELC-30 User Manual

4 • Commercial Electric Water Heater Use and Care Guide

T
o reduce the risk of property
damage, serious injury or death,
read and follow the precauons below,
all labels on the water heater, and
the safety messages and instrucons
throughout this manual.
RISKS DURING INSTALLATION
AND MAINTENANCE

Contact with the electrical
parts in the juncon box
and behind the access
doors can result in severe injury or
death from electrical shock:
• Disconnect power by opening the
circuit breaker or removing the fuses
before installing or servicing.
• Use a non-contact circuit tester to
conrm that power is o before
working on or near any electrical
parts.
• Replace the juncon box cover and
access doors aer servicing.

WARNING! The
water heater is heavy.
Follow these
precauons to reduce the risk of
property damage, injuries from liing
or impact injuries from dropping the
water heater.
• Use at least two people to li the
water heater.
• Be sure you both have a good grip
before liing.
• Use an appliance dolly or hand truck
to move the water heater.
RISKS DURING OPERATION

This water heater
can make water hot
enough to cause
severe burns instantly, resulng in
severe injury or death.
• Feel water before bathing or
showering
• To reduce the risk of scalding,
install Thermostac Mixing Valves
(temperature liming valves) at
each point-of-use. These valves
automacally mix hot and cold
water to limit the temperature at
the tap. Mixing valves are available
from your local plumbing supplier.
Follow manufacturer’s instrucons
for installaon and adjustment of
the valves.
• The thermostat(s) on this water
heater have been factory set to
approximately 140°F (60°C) to
reduce the risk of scalding. Higher
temperatures increase the risk of
scalding, but even at 140°F (60°C),
hot water can scald. If you choose a
higher temperature, Thermostac
Mixing Valves are parcularly
important to help avoid scalding.
For informaon about changing the
factory thermostat seng(s), refer to
the “Adjusng Temperature” secon in
this manual (see page 19, step 10).
Even if you set the water heater
thermostat(s) to a low seng, higher
temperatures may occur in certain
circumstances:
• Water temperature will be hoer if
someone adjusted the thermostat(s)
to a higher seng.
• Problems with the thermostat(s),
or other malfuncons may result
in higher than expected water
temperatures.
• If the water heater is in a hot
environment, the water in the
tank can become as hot as the
surrounding air, regardless of the
thermostat seng.
• If the water supplied to the water
heater is pre-heated (for example,
by a solar system) the temperature
in the tank may be higher than the
water heater’s thermostat seng.



Temperature Time to Produce
a Serious Burn
120°F (49°C) More than 5 minutes
130°F (54°C) About 30 seconds
140°F (60°C) Less than 5 seconds
150°F (66°C) About 1½ seconds
160°F (71°C) About ½ second
181°F (83°C) Nearly instantaneous


A.O. Smith DELC-30 Specifications

General

Brand	A.O. Smith
Model	DELC-30
Category	Water Heater
Language	English