Mounting The Unit; Water Connections; Electrical Connection; Putting The Water Heater Into Operation - Stiebel Eltron DHC-E 8 Instructions De Montage

Mounting the unit

UNIT MUST BE INSTALLED IN A
VERTICAL POSITION WITH THE
WATER FITTINGS POINTING DOWN-
WARD. DO NOT INSTALL UNIT WHERE
IT WOULD ROUTINELY BE SPLASHED
WITH WATER. ELECTRIC SHOCK MAY
RESULT.
1. Install DHC-E as close as possible to the
main hot water draw-off points.
2. Install DHC-E in a frost free area. If frost
may occur, remove unit before freezing
temperatures set in.
3. Leave a minimum of 5" of clearance on all
sides for servicing.
C
4. Remove plastic cover .
5. Mount unit securely to wall by putting two
screws through mounting holes
Screws and plastic wall anchors for
mounting on masonry or wood are
provided.

Water connections

1. All plumbing work must comply with na-
tional and applicable state and local
plumbing codes.
2. A pressure reducing valve must be installed
if the cold water supply pressure exceeds
150 PSI (10 bar).
3. Make certain that the cold water supply
line has been flushed to remove any scale
and dirt.
4. Install isolating valve in cold water line as
B
shown in illustration -16. This allows
the unit to be isolated for maintenance
purposes.
5. Cold water connection (inlet) is on the
right side of the unit, hot water
connection (outlet) is on the left side of
unit.
NOTE: EXCESSIVE HEAT FROM
SOLDERING ON COPPER PIPES
NEAR THE DHC MAY CAUSE DAMAGE.
6. Tankless water heaters such as the
DHC-E are not required to be equipped
with a Pressure and Temperature Relief
Valve (P&T). If the local inspector will not
pass the installation without a P&T, it
should be installed on the hot water outlet
side of unit.
7. The DHC-E is designed for connection to
copper tubing, PEX tubing or a braided
stainless steel hose with a ½" NPT female
tapered thread. If soldering near the unit is
necessary, please direct the flame away
from the plastic housing of the unit in
order to avoid damage.
8. When all plumbing work is completed,
check for leaks and take corrective action
before proceeding.

Electrical connection

WARNING: BEFORE BEGINNING
ANY WORK ON THE ELECTRIC
INSTALLATION, BE SURE THAT MAIN
BREAKER PANEL SWITCH IS „OFF" TO
AVOID ANY DANGER OF ELECTRIC
SHOCK. ALL MOUNTING AND
PLUMBING MUST BE COMPLETED
BEFORE PROCEEDING WITH
ELECTRICAL HOOK-UP. WHERE
REQUIRED BY LOCAL, STATE OR
NATIONAL ELECTRICAL CODES THE
CIRCUIT SHOULD BE EQUIPPED WITH
A „GROUND FAULT INTERRUPTER".
1. All electrical work must comply with natio-
nal and applicable state and local electrical
codes.
D E
. 2. The DHC-E should be connected to a
properly grounded dedicated branch
circuit of proper voltage rating. In installa-
tions with several DHC-E units, each unit
requires an independent circuit. Please
refer to the technical data table for the
correct wire and circuit breaker size.
3. The wire must be fed through the rubber
seal located between the hot and cold
water connections
through strain relief clamp and tighten
clamp down on wire. The „live" wires
must be connected to the slots on the ter-
minal block marked L and L. The ground
wire must be connected to slot marked
with the ground symbol.
4. Reinstall plastic cover.
WARNING: AS WITH ANY
ELECTRIC APPLIANCE, FAILURE
TO ELECTRICALLY GROUND UNIT MAY
RESULT IN SERIOUS INJURY OR DEATH.
Putting the water heater
into operation
WARNING: OPEN HOT WATER
FAUCET FOR A FEW MINUTES
UNTIL WATER FLOW IS CONTINUOUS
AND ALL AIR IS PURGED FROM WATER
PIPES. THE UNIT'S PLASTIC COVER
MUST BE INSTALLED BEFORE THE
CIRCUIT BREAKER IS TURNED ON.
1. Turn on circuit breaker to bring electrical
power to the unit.
2. Adjust the water temperature to the
desired level using the knob on the front
cover of the unit. The DHC-E displays the
temperature in degree Celsius. There is a
conversion table on the front cover that
allows to convert from degree Celsius to
degree Fahrenheit.
3. Turn on hot water and wait twenty
seconds until temperature has stabilized.
4. Check the water temperature with your
hand and make sure that it does not feel
too hot. Reduce if necessary.
5. Explain to the user how the unit works
and familiarise him or her with its use.
Advise the user about possible hazards
(hot water temperature up to 52 °C).
Hand over these instructions, to be kept
for future reference.
A setting of 110 °F - 115 °F is
recommended for most applications.

Normal maintenance

STIEBEL ELTRON DHC-E tankless water
heaters are designed for a very long service
life. Actual life expectancy will vary with
water quality and use. The unit itself does
not require any regular maintenance.
However, to ensure consistent water flow, it
is recommended to periodically remove scale
and dirt that may build up at the aerator of
the faucet or in the shower head. Also, the
DHC-E has a built in filter screen that should
be cleaned from time to time. In order to do
this, turn off the cold water supply at the
isolating valve and remove the ground wire
H
. Twist cold water supply tube
counterclockwise by 90° and pull towards
bottom of unit. Clean screen and put the
screen, the cold water supply tube and the
F
. Then feed wires
ground wire back into their original position.
Please be sure that the ground wire is
reinstalled and that ground screw is securely
tightened after this procedure.
CONTAIN ANY PARTS SERVICEABLE BY
THE LAY PERSON. IN CASE OF
MALFUNCTION PLEASE CONTACT A
LICENSED PLUMBER OR ELECTRICIAN.
OTHER THAN THE FILTER SCREEN,
THE DHC-E DOES NOT