Operation; Installation Instructions - STIEBEL ELTRON FB 1 SL Gebrauchs- Und Montageanweisung

1. Operating instructions
Electrical equipment must in principle be used
with due care to eliminate any potential risk
through fire, electric shock or injury. The unit
should therefore be used only as described
in these instructions. Use disregarding the
manufacturer's recommendations may result
in damage or injury.
The instructions should be read carefully
throughout before using the appliance and the
advice given on proper handling of the unit
should be followed.
Keep these instructions in a safe place
and give them to the new owner if you
move house. If maintenance or repair work
is required, let the qualifi ed installer have
them for reference.
1.1 Description
FB 1 SL is a module for installing a cable
remote control for the Stiebel Eltron Instan-

2. Installation instructions

Installation of the cable remote control in-
cludes a change of the control unit from the
DHE to the wall mount and the fitting of the
data transfer by telephone cable and connec-
tion module.
2.1 Regulations and specifi ca-
tions
• The FB 1 SL connection module must be
fitted and initially started up by a qualified
installer, following these installation instruc-
tions.
• The operating and installation instructions
for the instantaneous water heater must be
observed on installation and operation.
• All electrical connections and installation
work will be carried out in accordance with
the VDE Rules (0100), the provisions of the
electrical associations concerned and the ap-
propriate national and regional regulations.
• An installed unit will be switched off before
retrofitting with a remote control.
• The cable seals supplied with the unit will
be fitted as protection against penetrating
water.
• Protection class IP 25 (spray water pro-
tected) is achieved only after the cover (1)
has been installed on the heater.
• The regulations specific to the country will
be observed.
2.2 Installation location
The remote control is fitted at a clearly acces-
sible spot with the aid of the wall mount. They
can be fitted in protection class 1 (IP X4 or
IP X5). Assembly on a concealed switchbox or
surface-mounted assembly.
6
for the user and installer
taneous Water Heater DHE 18-27 SL(i) elec-
tronic comfort.
The cable remote control consists of the con-
trol panel for the instantaneous water heater
and the wall mount for the module. The con-
trol panel is removed from the unit cover and
inserted in the wall mount for the module.
The remote control is installed at any desired
place in the kitchen or bathroom.
The module connecting assembly built into the
instantaneous water heater and linked to the
remote control by a cable serves to transfer
data between the remote control and heater.
The module panel is fitted into the DHE cover.
Scope of supply FB 1 SL A :
• Cover (1) for the DHE unit cover
• Wall mount (2) to take the DHE control unit.
• Connection module (3)
• Fastening material for installation on the
concealed switchbox.
for the qualifi ed installer
2.3 Connecting cable for
FB 1 SL
The remote control operates on safety extra-
low voltage. Connections up to 15 m in length
are ensured for easy communication.
Control line:
Telephone line type J-YY 2x2x0.6
(without metallic screening)
The control line can be laid permanently con-
cealed or surface-mounted.
Screened cables may not be used under pro-
tection class 1.
2.4 Converting instantaneous
water heaters
– B open the cover on the heater (4), loosen
the retaining screw (5). Remove the cover (6).
– C pull the plug for the thermostat fly lead
cable from the heater.
– D remove the control unit (8) from the
cover (6), pressing the 4 engagement hooks.
– E press the panel (1) into the cover, lodg-
ing on all 4 engagement hooks.
Don't fi t a panel with damaged en-
gagement hooks.
2.4.1 Electrical connection to the
instantaneous water heater
F Feed the connecting cable optionally
through the top (9) or bottom (10) available
cable grommet. When connecting through the
upper cable grommet (9), it must be cut back
at the bevel in line with the cable cross section.
When connecting through the bottom cable
grommet (10), the cable must be laid in the
unit beneath the cable holders on the copper
tank (heater).
Installing the connection module G
– Strip the connecting cable for 35 mm and
insulate the cable ends for 6 mm.

1.2 Operation

Please see the operating and installa-
tion instructions for the instantaneous
water heater for using the control unit.
1.3 Safety information
• No changes of any kind may be made to
the remote control.
• The remote control must not be used if a
component is damaged, the remote control
has fallen down or it was already malfunc-
tioning.
1.4 Care
A damp cloth is all that is needed to care for
the housing. Don't use abrasive or aggressive
cleaning agents.
– Open the connecting module housing by
pressing in two of the catches on the side.
– Connect the connecting cable to the termi-
nal strip (11), place in the cable bushing and
re-close the housing.
– H insert the plug (12) into the „adapter"
point and place the connection module
against the unit back wall top right.
2.5 Remote control installation
2.5.1 Control unit installation
– I disassemble the two-part wall mount (2),
by loosening the screws at the bottom (17).
– pull the terminal strip component (13)
from the lower part of the wall mount.
– J loosen the motherboard (14) from the
control unit. Do so by pulling the board
upwards with the thumbs at the bottom
connector, loosening the three right-hand
engagement hooks one after the other at
the same time.
– K replace the thermostat fly lead cable (7)
on the motherboard with the terminal strip
component (13) from the wall mount.
– Reinsert the motherboard in the control unit,
doing so by first inserting the motherboard
on the left then pressing down to the right.
Check the correct positioning of the unit
centre line and drive lug on the knob (cor-
rect installation is not otherwise possible).
– L Press the control unit into the upper
part of the wall mount. All 4 engagement
hooks must nest.
2.5.2 Assembly of wall mount lower
part
... on surface-mounted assembly of the
connecting cable
– M punch out the knock-out points for
the cable bushing (15) at the bottom of
the wall mount (2 wall mount lower part