Maintenance; Draining The Appliance; Opening The Appliance; Descaling The Appliance - STIEBEL ELTRON UFP 5 t Si Bedienung Und Installation

INSTALLATION

Maintenance

14. Maintenance
WARNING Electrocution
Before any work on the appliance, disconnect all poles
of the appliance from the power supply.
f Dismantle the appliance for maintenance work. f

14.1 Draining the appliance

WARNING Burns
Hot water may escape during the draining process.
f Drain the appliance via its connectors. f

14.2 Opening the appliance

f Pull off the temperature selector and the limiting ring. f
f Remove the screws from underneath the temperature f
selector.
f Open the appliance cover by lowering the bolt screws in- f
wards and pivot the cover upwards, then remove it.

14.3 Descaling the appliance

Material losses
!
Never treat the cylinder surface with descaling agents.
f Remove the flanged immersion heater. f
f Carefully tap the heating element to remove large limescale f
deposits.
f Immerse the heating element up to the flange plate in desca- f
ling agent.

14.4 Checking the earth conductor

f Pull off the temperature selector and the limiting ring. f
f Check the earth conductor (in Germany, e.g. BGV A3) across f
a temperature controller fixing screw and the earth conduc-
tor contact of the power cable.

14.5 Replacing the power cable

The power cable must only be replaced by a qualified contractor
with an original spare part. Alternatively, the H05VV-F3x1.0 cable
may be used.
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14.6 Positioning the temperature sensor in its
protective pipe
f When replacing the temperature controller, guide the tem- f
perature sensor into its protective pipe.
f Secure the temperature sensor in place below the earthed f
plug.

15. Specification

15.1 Dimensions and connections

140
c06 c01
100
252
c01 Cold water inlet
c06 DHW outlet
i13 Wall mounting bracket
185
222
70
i13
UFP 5 t Si
Male thread
Male thread
UFP 5 t Si |
G 3/8 A
G 3/8 A
17