45
Recommendation: Install the safety
valve higher than the top edge of the cyl-
inder. This protects the valve against
contamination, scaling and high temper-
atures. The DHW cylinder does not then
need to be drained when working on the
safety valve.
Connecting the solar circuit
Connect the solar circuit on site.
Connecting a cooling circuit if required
For area cooling systems (e.g. under-
floor heating circuit, chilled ceiling), a
contact humidistat (accessory) is
required.
Requirements for the contact humidistat:
■ Electrical connection: 230 V~, 0.5 A
■ Installation inside the room to be
cooled at the cooling water flow
(remove thermal insulation if required)
■ If several rooms with different relative
humidity are part of the cooling circuit,
fit and connect several contact humidi-
stats in series:
Switching contacts as N/C contacts
Electrical connection
Danger
Damaged cable insulation can
cause injury and damage to the
appliance.
Route cables so that they cannot
touch very hot, vibrating or sharp-
edged components.
Danger
Incorrectly routed wiring can lead
to serious injury from electrical
current and result in equipment
damage.
Installation sequence
Connections on the DHW side
(cont.)
5623 661 GB
Installation
