Dantherm HCV 3 Manual page 41

Fault finding guide,
Inconvenience,
con-
tinued
The house is being
unnecessarily dried
out.
There is damp on
the inside of the
windows and other
cold surfaces. (au-
tumn, winter and
spring)
The unit is always
operating with the
same speed.
The display goes
out after a short
period of time, after
which only the
green light-emitting
diode is on.
continued
Inconvenience
The unit might be operating
with too much air change
compared to the size and use
of the house.
The air change is too low or
the air distribution is unfortu-
nate which causes too low air
change in critical rooms
The unit is set on manual op-
eration at one fixed speed.
The display goes into Energy
Saving Mode after 2 minutes
to effect power save.
Cause
Switch to Automatic Demand
Mode or set the air flow rate at
Fan Step 2 or 1 in Manual Op-
eration Mode.
only recommended for a short
period of time.
Expect a couple of days to
raise humidity, if the house is
very dry.
If that does not help, contact
your installer to adjust the air
flow rates.
Adjust the unit to Automatic
Demand Mode, which assures
that it keeps the humidity on a
suitable level. Do not let the
unit operate on Fan Step 1 or
2 in Manual Operation Mod
because that might not keep
the humidity low enough when
the moisture load of the house
is that big.
Switch the unit to Automatic
Demand Mode after which the
unit will adjust the air flow
rates according to the house's
needs.
The unit is operating correctly.
Action
Using Fan Step 2 or 1 is
39