20
3.2.13. Customizing Combi Features
As your combi has an advanced electronic card, operation conditions
and certain parameters related with your preferences may
be changed by our Authorized Service. Please consult our authorized
service when any changes requested in below given parameters.
(P06) (CH) (Heating) Power.
Combi is equipped with an electronic modulation with power suitable
with actual heat requirement of installation place. Thus, the combi
automatically operates with variable gas flow rates depending on heat
load of installation between the minimum and maximum power.
(P07) Controlled Power Increase Period.
When combi starts, it uses a controlled period defined for reaching the
adjusted maximum heating power. This period is adjusted as 3 minutes
as standard and can be increased up to 3 minutes.
(P21) Low temperature region selection.
This parameter should be adjusted as 1 for ground heating or heating
systems operating with low temperature. 0 (zero) value is selected for
radiator systems to operate at high temperatures as standard.
(P24) Child Protection
Your combi is protected against setting changes with the child lock that
is activated when the MODE button is pressed for 5 seconds.
Protection lock is activated when the parameter is adjusted as 1.
(P40) Radiator ignition delay period.
Combi device is equipped with an electronic timer for preventing
frequent ignition by the combi during heating stage. This
period is adjusted as 2 minutes as standard and can be increased up to
10 minutes.
(P42) Ready Hot Water (Pre-Heating passive/active).
In order to rapidly prepare the domestic hot water without your request
and reducing the cold water consumption during waiting, it heats the
grid water in plate exchanger and keeps as hot water. This function
can be activated in 6 buttons LAWAPLUS models. Pre-heating function
is activated when domestic hot water temperature increase Figure 28
(2) RESET button is pressed until cycle is completed. At the end of this
period, Pre-On (active), Pre-Off (passive) is seen on the LCD screen for
5 seconds.
Activation of this function in LAWA models is enabled with parametric
adjustment by our Authorized Service according to your request.
Air Discharge Function
Activating the menu for LAWA, PRIWA and ENERWA models:
Air discharge function can be activated by pressing the RESET button
more than 5 seconds while CH button and DHW button are at
maximum position. Upon activation of this function, 3 way valve and
pump is operated or not operated for discharging the air within the
radiator installation.
3.3. TROUBLESHOOTING
3.3.1. Failure Codes Table
Failure
Code
Failure / Error Definition
Possible Reasons
Combi Status / Solution
E 02
Low water pressure in CH system / system
parameter is wrong adjusted
Adequate pressure is not available in the
radiator installation for efficient and smooth
operation.
Control the manometer of your Combi, correct
pressure value should be between 1÷1,2 bar,
ensure correct pressure in case of being required.
Press the RESET.
E 03
High water pressure in radiator system (in LawaPlus)
Excessive water pressure, safety valve.
Reduce the pressure from water discharge tap. Call
the authorized service.
E 04
DHW Temperature Sensor failure.
In case the card detects failure or error in
NTC domestic hot water sensor, combi notifies
this error situation.
Combi is not functioning (1).
E 05
Radiator temperature Sensor failure.
Electronic card detected a failure in output
NTC sensor.
Combi is not functioning (1).
E 13
Exhaust Gas Temperature Sensor excessive
temperature alarm.
Combi passes into failure due to excessive
temperature of exhaust gas accumulated inside
due to any failure during.
Call the authorized service in case of repeated
after reset..
E 14
Exhaust Gas Temperature Sensor failure.
Electronic card detected an anomaly in
exhaust gas sensor.
Combi is not functioning (1).
E 15
Fan failure (feedback/feeding).
Fan is blocked. Excessive external air pressure. Call the authorized service in case of repeated
after reset..
rE 06
rE 08
No ignition. Not ignited within the previously
defined period in case of any request for
radiator or domestic hot water production.
Intervention may be required for removing the
"ignition prevention status" at first ignition of
device or after a long standby period.
Control whether gas supply line valves are
open. Respectively, control whether gas
valves of your combi, home and building are
open.
Call the authorized service in case of repeated
after reset.
rE 07
Safety / Security Thermostat Intervention (dual
CH sensor)
If internal excessive heating occurs due to any
failure during normal operation, combi passes
to failure status and
Press the RESET button. (1)
Содержание LAWA
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