Idiomas disponibles
Idiomas disponibles
GB
Installation instructions
for contractors
Contact humidistat
Safety instructions
Please follow these safety instructions closely to prevent accidents
and material losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
Installation, commissioning, inspection,
maintenance and repairs must only be
carried out by an authorised, competent
person (heating engineer/installation
contractor).
Before working on the appliance/heat-
ing system, isolate it from the power
supply (e.g. by removing the separate
fuse or by means of a mains isolator)
and safeguard against reconnection.
Note
In addition to the control circuit there
may be several power circuits (e.g.
compressor, instantaneous heating
water heater).
10
VIESMANN
Note
Details identified by the word "Note"
contain additional information.
Danger
If not all electrical circuits are
isolated, injury through electric
shock and appliance damage
may result.
Isolate all existing electrical cir-
cuits from the power supply.
Safeguard against unauthorised
reconnection.
Wear suitable personal protective
equipment when carrying out any work.
Observe the special safety instructions
for the refrigerant used in the heat
pump:
Heat pump installation and serv-
ice instructions
