Stiebel Eltron PSH 50 COMFORT UNIVERSAL 229270 [18/44] Commissioning

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9.3 Water connection

Risk of damage

Carry out all water connection and installation work in

accordance with regulations.

If the water pressure is higher than 0.5 MPa, install a

pressure reducer in the cold water inlet.

ª Thoroughly ﬂush out the cold water line before connecting

the appliance, so that no foreign matter gets into the cylinder

or safety valve.

ª Route the drip water outlet of the safety valve to a drain free

from the risk of frost, with a constant slope to ensure the

unrestricted ﬂow of the water to the drain. The drip water

outlet must always remain open to the atmosphere.

9.4 Electrical connection

DANGER Electrocution

Carry out all electrical connection and installation work

in accordance with relevant regulations.

DANGER Electrocution

Only use a permanent connection to the power supply.

The appliance must be able to be separated from the

power supply by an isolator that disconnects all poles

with at least 3 mm contact separation.

Risk of damage

Observe the type plate. The speciﬁed voltage must match

the mains voltage.

Earth conductor

Ensure that the appliance is earthed.

See chapter „Speciﬁcation / Wiring diagram“.

DANGER Electrocution

The power cable must only be replaced (for example if

damaged) by contractors authorised by the manufac-

turer.

The appliance is supplied with a ﬂexible power cable with wire

ferrules and without plug, ready to connect.

ª If the cable is of insufﬁcient length, unclamp it from the ap-

pliance. Use a suitable installation cable (see chapter „Speci-

ﬁcation / Data table“).

ª When routing the new power cable, ensure that it is water-

proof as it passes through the existing cable entry, and is

correctly routed and connected inside the appliance.

10. Commissioning

26_02_07_0145

ª Open the shut-off valve in the cold water line.

ª Open a downstream draw-off valve until the appliance has

ﬁlled up and the pipes are free of air.

ª Adjust the ﬂow rate. Observe the maximum permissible ﬂow

rate with a fully opened tap (see chapter „Speciﬁcation /

Speciﬁcation“).

ª Turn the temperature selector to maximum temperature.

ª Switch the mains power ON.

ª Check the function of the appliance.

ª Check the function of the safety valve.

11. Taking the appliance out of use

ª Disconnect the appliance from the mains at the MCB/fuse in

the fuse box.

ª Drain the appliance. See chapter „Maintenance / Draining the

appliance“.

12. Recommissioning

See chapter „Commissioning“.

13. Appliance handover

ª Explain the appliance function to users and familiarise them

with its operation.

ª Show the user the safety valve and its operation instructions,

and explain its signiﬁcance.

ª Make users aware of potential dangers, especially the risk of

scalding.

ª Hand over these instructions.

Stiebel Eltron PSH 50 COMFORT UNIVERSAL 229270 [18/44] Commissioning

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