Rooms Are Too Cold; Rooms Are Too Hot - Viessmann Vitotronic 200 Operating Instructions For The System User

Rooms are too cold

Cause
The heat pump is switched off.
Heat pump control unit or remote control
incorrectly adjusted.
DHW cylinder is being heated.
"Note", "Warning" or "Fault" is dis-
played.

Rooms are too hot

Cause
Heat pump control unit or remote control
is incorrectly adjusted.
"Note", "Warning" or "Fault" is dis-
played.
Remedy
■ Switch the ON/OFF switch " " ON
(see diagrams from page 19).
■ Switch ON the main isolator, if installed
(outside the boiler room).
■ Reset the MCB in the power distribution
board (main domestic MCB).
Check settings and correct if required:
■ "Heating and DHW"
or
"Heating/cooling and DHW"
must be set up (see page 26).
■ Room temperature (see page 25).
■ Time (see page 45).
■ Time program central heating/cooling
(see page 26).
■ Time program heating water buffer cyl-
inder (see page 42).
Wait until the DHW cylinder has been
heated up.
If necessary, reduce the amount of hot
water being drawn.
Scan the type of message and acknowl-
edge it (see page 49). If necessary, notify
your heating contractor.
Remedy
Check settings and correct if required:
■ Room temperature (see page 25).
■ Time (see page 45).
■ Time program central heating/cooling
(see page 26).
■ Time program heating water buffer cyl-
inder (see page 42).
Scan the type of message and acknowl-
edge it (see page 49). If necessary, notify
your heating contractor.
What to do if...
51