27 - EN
Problem/Malfunction
Indication
Check / action
The pump does not run
The STATE of the SUBSOIL HEAT
EXCH. on the display of the
ventilation system is OFF.
(see MENU > STATUS > SUBSOIL
HEAT EXCH. > STATE)
Check the ventilation unit, the measured outside temperature and the
temperature profile setting.
The STATE of the SUBSOIL HEAT
EXCH. on the display of the
ventilation system is ON.
(see MENU > STATUS > SUBSOIL
HEAT EXCH. > STATE)
Check the pump setting, the wiring and connection points on the
Option Box of the ventilation unit
- The pump has a defect if there is power on the clamps of the Option
Box.
High intake temperature in
summer.
The STATE of the SUBSOIL HEAT
EXCH. on the display of the
ventilation system is OFF.
(see MENU > STATUS > SUBSOIL
HEAT EXCH. > STATE)
Lower the temperature profile setting on the ventilation unit.
Little or no cooling or
heating capacity.
The STATE of the SUBSOIL HEAT
EXCH. on the display of the
ventilation system is ON.
(see MENU > STATUS > SUBSOIL
HEAT EXCH. > STATE)
Check the system pressure and the pump setting.
Little or no
supply air
Filters clogged.
Replace the filter.
Battery clogged.
Clean the battery.
Too much noise
Whistling noise
- Air escaping through crack
somewhere
Seal the crack using insulating tape (not included).
Slurping noise
- Siphon is empty
- U bend is not sealed properly
Fill the siphon, reconnect the siphon.
Condensation leak
Condensation drain clogged.
Clean both condensation drains
(at the top and bottom of the ComfoFond-L Q).
Condensation on the pipes and/or
brine and air connections.
Insulate the connections and pipes.
Frost-free set up not achieved
The ComfoFond-L Q was not installed in accordance with the
installation requirements. Insulate the area that accommodates the
ComfoFond-L Q or relocate the ComfoFond-L Q to a frost-free area.
High humidity
Lower the humidity by ventilating the area. If the humidity remains
high, then relocate the ComfoFond-L Q to an area with a lower
humidity or insulate the areas where condensation forms.
8 Technical specifications
Performance
Heating capacity (water based)
■
max 350 m
3
/h
1
■
max 450 m
3
/h
3
■
max 600 m
3
/h
5
1.9 kW
2.2 kW
2.5 kW
Cooling capacity (water based)
■
max 350 m
3
/h
2
■
max 450 m
3
/h
4
■
max 600 m
3
/h
6
2.0 kW
2.4 kW
2.8 kW
Maximum sound power level
40 dB(A)
Electrical data
Maximum power consumption
0,58 A
7. Malfunctions
The ComfoFond-L Q does not have a digital control
system that indicates malfunction codes.
The ventilation unit has a display that indicates
malfunction codes. The ventilation unit manual states
what the malfunction codes mean and how to rectify
these malfunctions.
Not all malfunctions are displayed on the digital
control system of the ventilation unit, even though
there may be malfunctions (or problems). Below is a
list of the malfunctions (or problems) that may occur
without a malfunction code being displayed on the
display.
Summary of Contents for ComfoFond-L Q ST
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