Paul santos 570 DC, Руководство по эксплуатации, Страница: 29 / 44

25 System Functions EN
3.9.2 Cleaning the Filters of units
Equipped with a Frost Protection
Device
The filter of the frost protection device
(if installed) must be cleaned every 4
years.
1. Isolate the unit from the mains power
supply
2. Lift the front panel (A) upwards and remove
from the santos unit.
3. Pull the handles (B) away from the santos.
4.
Remove
the filters (C) from the santos.
5. Remove the sealing plate by removing the
screws (E).
6. Remove screws from the electronic car-
riage
7. Carefully pull the electronic carriage for-
ward.
8. Disconnect the connectors (J) and the
earth wire from the PCB, and completely
remove
the cables as well as both grom-
mets (K).
9. Remove the cable from the PCB.
10. Remove the bracket securing the frost
protection device by pushing it upwards
slightly and then pulling it away from the
valve.
11. Clean the filter with a brush.
12.
Remove
any soiling with a damp cloth.
13. Install all the parts again in the reverse or-
der.
14. Reconnect the unit to the mains power
supply.
15. Initiate the self-test routine in line with
menu P76.
The inward curved (hollow) side of the
filter of the frost protection device must
point towards the bracket securing the
frost protection device.
Tighten the screws to a maximum torque
of 1.5 Nm. This corresponds roughly to
level 2 of a normal cordless drill.
3.10 Malfunctions
A warning message is generally displayed on
the display of the digital control panel if a mal-
function should occur in the santos.
However, not all malfunction messages are
displayed on the display of the digital control
panel, even if there is a malfunction (or prob-
lem). Both types of malfunction (or problem)
are described briefly in the following sections.
3.10.1 Malfunction messages displayed
There follows an overview of the malfunction
messages that are shown on the display of the
digital control panel.
Code Description
A0 NTC sensor Tghe defective.
(= temperature of intake air for GHE
control valve)
A1 NTC sensor T1 defective.
(= temperature of the intake air)
A2 NTC sensor T2 defective.
(= temperature of supply air)
A3 NTC sensor T3 defective.
(= temperature of exhaust air)
A4 NTC sensor T4 defective.
(= temperature of discharged air)
A5 Bypass motor malfunction.
A6 Motor of frost protection device mal-
function.
A7 Frost protection device not warming
sufficiently.
A8 Frost protection device too hot.
A10 N/A
A11 N/A
‚Fil‘ ‚tEr‘ Replace filter display
E1
Exhaust air fan not working.
E2 Supply air fan not working.
E4 Heat recovery function turned off via an
external contact
EA1 Enthalpy sensor measures excessively
high moisture values.
EA2 No communication with
enthalpy sensor.
NC No communication with unit
FilterI Internal filter dirty.
FilterE External filter dirty.
Ensure that the electrical connections
do not come into contact with moisture.