18
01DOC1175-0
2
-
VERSION 2
1
/
1
.0 -
S
TAND
08
/
202
1
EN
K000105 BW8+
System stop due to an error in the exhaust system:
Code 62
– High exhaust
pressure.
E R R O R C A U S E :
■
Excessive pressure before the internal exhaust heat exchanger (pressure
switch (130 mbar) in the electronics compartment of the Power Unit).
■
Excessive pressure in the external exhaust system (pressure switch (
15
mbar)
on the safety circuit).
■
Excessive temperature in the external exhaust system (temperature sensor
on the exhaust pipe).
C H E C K A L A R M C A U S E A N D C O R R E C T E R R O R S :
S A F E T Y B O X
■
Remove the lid of the safety box on the safety circuit.
■
Reset the temperature sensor by pressing the trigger with a screwdriver.
■
Put the lid of the safety box back on again.
G A S S A F E T Y C I R C U I T P C B / E C U P C B
■
On the gas safety circuit PCB/ECU PCB, press
RESET
at
EXHAUST PRESSURE
.
I Q - C O N T R O L PA N E L
■
Press
OK
on the user interface of the iQ-Control Panel to reset the alarm.
■
Start the XRGI® system normally.
5.
T R O U B L E S H O O T I N G
The inspection and maintenance of a heating system is prescribed by the
Energy Saving Ordinance and the standards DIN 4756 and DIN 1988-8a. To
ensure trouble-free, energy-saving and environmentally friendly operation,
the heat exchanger must also be cleaned and maintained at least once a year.
To do this, it is best to conclude an inspection and maintenance contract with
your heating contractor.
6.
M A I N T E N A N C E & C L E A N I N G
The plate heat exchanger has no moving parts or electrical components.
The following should be inspected regularly:
■
Operational design conditions for the system being maintained and meeting
the calculated/design values (leaving temp., pressure drop).
■
Increased pressure drop and decreased thermal efficiency over time are signs
of possible fouling.
■
Connections for tightness.
■
Signs of corrosion.
■
Seal and gaskets.
■
External components such as valves, dampers and controls.
6.1 M A I N T E N A N C E
