DeDietrich AWHP 4 MR User Manual page 7

7623755 - v02 - 03072015
Note
Setting the domestic hot water temperature set point:
refer to the chapter "Setting the domestic hot water
temperature set point".
Caution
Pressure limiter device: refer to the chapter Special
precautions to be taken when connecting the domes­
tic hot water circuit (Installation and Service Manual).
The pressure limiter device (safety valve or safety
unit) must be regularly operated in order to remove
limescale deposits and ensure that it is not blocked.
A pressure limiter device must be fitted to a dis­
charge pipe.
As water may flow out of the discharge pipe, the
pipe must be kept open to the open air, in a frost-
free environment, and at a continuous downward
gradient.
Caution
A pressure reducer (not provided) is required when
the supply pressure exceeds 80% of the safety valve
or safety unit calibration and must be located up­
stream of the appliance.
Caution
There must be no cut-off devices between the safety
valve or unit and the domestic hot water tank.
Electrical safety
Caution
A disconnection device must be fitted to the perma­
nent pipes in accordance with installation rules.
Caution
If a power cord comes with the appliance and it turns
out to be damaged, it must be replaced by the manu­
facturer, its after sales service or persons with similar
qualifications in order to obviate any danger.
Caution
Install the appliance in accordance with national rules
on electrical installation.
Caution
If the appliance is not wired in the factory, carry out
the wiring according to the wiring schematics descri­
bed in the chapter Electrical Connections (Installation
and Service Manual).
1 Safety
MIV-4 7