21
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
No.
parameter
Description
Range
Default value
02
Gas type
0 = methane
1 = LPG
0-1
depending on the type of gas for which the boiler is
set in the factory
08
DHW mode off
0 = fixed
1 = linked to the DHW setpoint
0-1
0
09
Ignition power
0...40
40
10
Ignition curve
0 - 3
1
13
LPG gas type
1 = propane
2 = butane
1-2
depending on the type of gas for which the boiler is
set in the factory
17
Complete or partial calibration
0...100
0
18
DHW modulation with flow meter
0 = modulation without flow meter
1 = modulation with flow meter
0-1
1
26
Type of water heater
0 = Caesar Eco 11
1 = Caesar Eco 14
2 = not applicable to this model
3 = not applicable to this model
0...3
depending on the model
27
Modulation coil reactivity
0 - 1
0
28
0 = standard water heater installation
from 1 to 20 = solar water heater, start-up delay (in
seconds) of the device upon request
0
from 1 to 20
0
Attention: any other additional parameters with regard to the previous table must not be changed for any reason.
3.4 POSSIBLE PROBLEMS AND THEIR
CAUSES.
N.B.:
maintenance operations must be carried
out by an authorised company (e.g. Authorised
After-Sales Technical Assistance Service).
Refer to paragraph 2.5 for information regarding
faults and display signals.
- Smell of gas. Caused by leakage from gas circuit
pipelines. Check tightness of gas intake circuit.
- Irregular combustion (red or yellow flame).
Can be caused by: dirty burner, clogged lamel-
lar pack, intake - exhaust terminal not installed
properly. Clean the above components and
ensure correct installation of the terminal.
- Frequent trips of the overheating temperature
or safety thermostat. It can depend on an anom-
aly on the water heater P.C.B. or and anomaly
of the regulation NTC probe.
- Poor water flow: if, as a result of limescale
(calcium and magnesium), the domestic hot
water system does not work properly contact an
authorised company for descaling e.g. Authorised
Technical Assistance Service according to good
practice. To preserve integrity and efficiency of
the heat exchanger, a non corrosive descaler must
be used. Cleaning must be carried out without the
use of tools which can damage the heat exchanger.
