38
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. It also means that the DHW cyl-
inder does not 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
Incorrect wiring can lead to seri-
ous injury from electrical current
and result in appliance damage.
Observe the following when mak-
ing the electrical connection:
Installation sequence
Connecting the DHW side
(cont.)
5546 699 GB
