Installation; Safety; General Safety Instructions; Instructions, Standards And Regulations - STIEBEL ELTRON HDB-E 12 Si Operation And Installation

INSTALLATION

Safety

INSTALLATION
7. Safety
Only a qualified contractor should carry out installation, commis-
sioning, maintenance and repair of the appliance.
7.1

General safety instructions

We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used.
Material losses
!
Observe the maximum inlet temperature. Higher temper-
atures may damage the appliance.
WARNING Electrocution
This appliance contains capacitors which are discharged
when disconnected from the power supply. The capacitor
discharge voltage may briefly reach > 60 V DC.
7.2

Instructions, standards and regulations

Note
Observe all applicable national and regional regulations
and instructions.
- The IP 25 (hoseproof) rating can only be ensured with a cor-
rectly fitted cable grommet.
- The specific electrical resistivity of the water must not fall
below that stated on the type plate. In a linked water net-
work, factor in the lowest electrical resistivity of the water
(see chapter "Installation / Specification / Data table"). Your
water supply utility will advise you of the specific electrical
water resistivity or conductivity.
8.

Appliance description

8.1

Standard delivery

- Mounting bracket
- Installation template
- Twin connector
- Cross-piece
- Tee
- Flat gaskets
- Strainer
- Flow limiter
- Plastic profile washer
- Plastic cover
- Plastic connection pieces
- Cover guide pieces
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8.2

Accessories

Taps
- MEKD kitchen pressure tap
- MEBD bath pressure tap
Plugs G ½ A
The following water plugs are required if you use twin-lever pres-
sure taps for finished walls other than those recommended by us.
Installation sets for installation on finished walls
- Solder fitting – copper pipe for the Ø 12 mm solder
connection.
- Press-fit fitting – copper pipe.
- Press-fit fitting – plastic pipe (suitable for Viega: Sanfix-Plus
or Sanfix-Fosta).
Universal mounting frame
Mounting frame with electrical connections.
Pipe assembly for DHB water plug-in couplings
2 water plug-in couplings for connecting the appliance to the ex-
isting water plug-in connections of a DHB.
Load shedding relay (LR 1-A)
The load shedding relay for installation in the distribution board
provides priority control for the instantaneous water heater when
other appliances, such as electric storage heaters, are being op-
erated simultaneously.
Central thermostatic valve (ZTA 3/4)
Use the thermostatic valve for central premixing when operating
an instantaneous water heater with preheated water, for example.
9.

Preparation

f Flush the water line thoroughly. f
Taps
f Use suitable taps (see chapter "Installation / Appliance f
description / Accessories"). Open vented taps are not
permissible.
No safety valve is required.
Material losses
!
Do not use the cross-piece to reduce the flow rate. The
cross-piece is only intended to shut off the appliance.
Permissible water line materials
- Cold water inlet line:
Pipes made from galvanised steel, stainless steel, copper or
plastic
- DHW outlet line:
Pipes made from stainless steel, copper or plastic
HDB-E Si | 19