Draining The Water Heater; Removing The Cover; Removing The Heating Element; De-Scaling The Heating Element - Stiebel Eltron SHC 2.5 Mode D'emploi Et Directives D'installation

INSTALLATION
Maintenance Instructions
4. The T&P valve may take more than one attempt to
reseat correctly. If this is the case, try re-opening
the valve and quickly releasing it, allowing it to slap
shut. This action does not damage the valve.
5. If after repeated attempts the valve does not reseat
properly and continues to leak water, it should be
replaced. If the valve fails this test it was already
malfunctioning and was not offering the protection
needed.
6. Immediately close the cold water inlet to the heater.
Replace the malfunctioning T&P valve with a new
one.
Failure to install and maintain a properly functioning and
properly listed temperature/pressure relief valve will release
the manufacturer and distributor of this water heater from
any claim which might result from excessive temperature
or pressure. Regular venting/testing may increase the life
of the valve.

12.3 Draining the water heater

Some service work requires draining the water heater. This
should be done in the following manner:
1. Unplug the water heater.
2. Open the hot water faucet to let the hot water out.
Let it continue to flow until cold water runs from the
faucet.
3. Turn off the cold water supply to the heater.
4. Close the hot water faucet
5. Disconnect the heater from both the hot and cold
water pipes.
6. Carefully detach the water heater from the wall.
7. Tilt the water heater to drain out the remaining
water.

12.4 Removing the cover

1. Remove the temperature control knob from the top
of the unit.
2. Remove the screws from the cover.
3. Remove the cover by tilting the bottom side and lift-
ing off the cover. Cover should come right off.
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12.5 Removing the heating element

1. Unplug and drain the water heater (See 12.3,
"Draining the water heater", pg. 9).
2. Remove the cover (See 12.4, "Removing the cover",
pg. 9).
3. Disconnect the line wires from the thermostat.
4. Remove the thermostat from the heating element.
5. Using a suitable wrench, unscrew the heating
element.
6. Remove the heating element from the tank.

12.6 De-scaling the heating element

Scale deposit can affect the heating capacity of the heating
element. Scale can even cause the element to burn out. The
element can be descaled either chemically or manually.
1. Remove the heating element (See 12.5, "Removing
the heating element", pg. 9).
2. To descale chemically, soak the heating element in
white vinegar or other descaling solution, then rinse
well.
3. To descale manually, use a nonmetallic (soft) tool;
brush the crust off the element. Make sure you do
not damage the surface of the heating element.
4. Reinstall the heating element.
5. Refill the water heater with water and check for
leaks before connecting the power.

12.7 Replacing the heating element

1. Unplug and drain the water heater (See 12.3,
"Draining the water heater", pg. 9).
2. Remove the cover (See 12.4, "Removing the cover",
pg. 9).
3. Remove the heating element (See 12.5, "Removing
the heating element", pg. 9).
4. Install and seal the new element. Make sure that the
heating element is positioned correctly.
5. Remount all the line wires to their original location.
6. Refill the water heater with water and check for
leaks before connecting the power.
SHC 2.5 / SHC 4 | 9