Bosch TR8500 21/24 DESOAB Montageanleitung Seite 8

Installation instructions
• The distance to the wall is variable. You can compensate for any
unevenness of the wall's surface. With a distance to the wall of 8–
16 mm, insert the spacer and install the extender (Fig. 3, 3.–6.).
• The appliance must be mounted securely on the wall. If necessary,
attach it at the lower adjustable screws (Fig. 3, 7.).
Water connection (Fig. 4/5)
• Before connecting the water, guide the AquaStop connection pipe
into the grommet (Fig. 5, 7.). The grommet must tightly surround the
connection pipe.
• Connect the water supply, then open the cold water supply.
• When tightening the connections, make sure that the AquaStop is
positioned vertically.
• Press the grip surfaces together and pull out the transport protection
attachment to the right (Fig. 5, 10.).
• The appliance must be vented. To do so, open the warm water tap
fully and flush out the appliance thoroughly for 1 minute.
In accordance with EN60335-2-35, when the appliance is intended to
supply water for showering, a thermostatic mixing valve must be
installed in the showering water circuit, limiting the temperature to 55°C
(accessory 7709500299).
Electrical connection/Mounting (fig. 6)
• Set the power using the power selector switch before connecting
the wires to the mains connection terminal: Nominal output power
left, reduced output right (Fig. 6, 1.) and the set output marked
on the ratings plate.
• Screw the wires tightly into the mains connection terminal.
• Switch on the safety limiter (Fig. 6, 3.).
• Install the cover (Fig. 6, 4.–7.).
Installation note
• The installation of non plug-in ready appliances must
be undertaken by the respective utility operator or by a qualified
specialist company, who can also assist you when you are
requesting the approval of the utility company for installation of
the appliance.
Startup (Fig. 7)
The device is compliant to IEC 61000-3-12.
First start-up
• Switch on the fuses.
• Setting the temperature.
• Initial rinsing: Open the warm water tap fully and allow water to flow
for at least 1 minute. Only then (for safety reasons) will the appliance
begin to heat.
Tip: Should the appliance not start because of a reduced flow-rate,
remove the perlator, shower head or similar before start and repeat the
process.
• Explain the operation of the appliance to the user.
Additional information (Fig. 8)
• If the appliance does not have sufficient water flow due to low water
line pressure in your domestic plumbing system, remove the flow-
rate limiter (Fig. 8, 1.–3.).
• Priority circuit for the combination with electrical s torage heaters:
For operation with a priority circuit, a special load shedding relay
BZ 45L21 (special accessory) is required. Other existing load
shedding relays, with the exception of electronic load shedding
relays, may malfunction (Fig. 8, Wiring diagram).
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• The control electronics must be coded when operated with a load
shedding relay. Remove the keying nose on the electronics
(Fig. 8, 4.).
6 720 876 028 (2018/09)