Hoval Uno-3 - What to Do if

HEATING SYSTEM CONTROL
134 213 563 / 03
5.3 What to do if...
The following information can be used as a rst level sup-
port in frequently occurring situations.
Observation
Remedy
Chapter / page
It is too cold. Select Room temperature on the start screen and press
the plus (
) button to increase the room temperature.
5.7.1 page 21
It is too warm. Select Room temperature on the start screen and press
the minus (
) button to reduce the room temperature.
5.7.1 page 21
From now on, equal day
and night temperatures
should be maintained conti-
nuously.
Select Basic programs on the start screen and choose
the Constant basic program. Set the desired room
temperature.
5.7.4 page 23
This evening, the heating
should remain on for lon-
ger.
Select Day programs on the start screen. Under “Select
day program”, set Party and enter the duration and room
temperature.
5.10.3 page 42
A larger amount of hot wa-
ter is required.
Select DHW temperature (tap icon) on the start screen
and press the plus (
) button to increase the water
temperature. If necessary, recharge domestic hot water
(“Recharging”).
You can also access the function for setting
the water temperature using
Main menu
( ) > Hot water.
5.7.2 page 22 /
5.11.7 page 55
From now on, hot water but
no heating is required.
Set Heating circ. to Standby basic program and Hot
water to the required basic program. Heating operation
OFF, hot water ON.
5.7.4 page 23
Suddenly, there is no hea-
ting or hot water; it is cold.
Check the control module for alarm messages and
consult a heating engineer, if necessary. Check if there is
still su󰀩cient fuel/Electricity available, if necessary.
Alarm messages
chapter
I will be absent for several
hours during the day today.
Select Day programs (e.g. all day) on the start screen.
Under “Select day program”, set another day program or
Absent (enter the duration and room temperature).
5.7.5 page 24 /
5.10.3 page 42
I am travelling for a certain
period of time (e.g. two
weeks).
Select Basic programs on the start screen and choose
the Holiday basic program. Set return date minus at
least 1 day.
5.8.2 page 29
I am going away for an in-
denite period of time.
Select Basic programs on the start screen and choose
the Standby basic program. Change the basic program
when you return.
5.7.4 page 23
In summer, it is too cold or
too warm.
The basic program enables you to tell which operating
mode is active. Adapt the required basic program as
you need to.
5.7.4 page 23