Instruction Manual
23
After adapting the boiler to combust another type of gas:
•
Cross out on a rating plate the type of gas to which the boiler
was adapted by the manufacturer,
•
Write down the symbol of the gas, to which the boiler has
been adjusted and the set heat load on the appropriate label
that is attached bulk to the user manual. The entry must be
written legibly and indelibly.
Setting for the gas:
liquefied
Gas symbol:
3B/P
Gas pressure [mbar]
30
Set the nominal heatload
........................... [kW]
NOTE!
Adapting the boiler to combust another type of gas must be performed only by a QUALIFIED SERVICE COMPANY.
This service is not included in the warranty repairs.
After adjusting the boiler to combust a different type of gas, check if:
•
the tightness of the gas system connections was confirmed with the signature and stamp of the installer after the boiler installation,
•
the electrical installation was made in accordance with applicable regulations,
•
the connection between the boiler and the chimney is tight and confirmed by a qualified chimney service as correct.
2. Gas valve coils EV1-EV2,
3. Measuring point of inlet gas pressure,
4. Measuring point of outlet gas pressure,
5. A minimum pressure adjustment screw,
6. A maximum pressure adjustment screw
Fig. 4.2.1 Gas valve
4.3 BOILER ADJUSTMENT
The below-described gas flow regulations are only necessary when the gas unit is to be replaced. The flow regulations are for
boilers with power ratings given in Table 4.3.1. and 4.3.2.
Before adjusting the boiler, activate the service function of the boiler in the following way:
•
set the mode: WINTER; see section 5.3
•
press the
button twice
•
on the control panel display, the appropriate symbol flashes. The left field shows the fan rotational speed with the max
symbol placed above it. The right field shows the C.H. temperature.
•
Within 5 seconds, press the “+” button for 2s; after service function activation, the symbol stops flashing
•
use the ”+” button to increase the fan speed to maximum (defined by parameter P05)
•
use the ”-” button to decrease the fan speed to minimum (defined by parameter P04)
•
The service function remains activated for 10 min. To terminate early, press the reset button.
4.3.1. Gas flow regulation in the boiler (without using the flue gas analyser)
Maximum power adjustment
Minimum power adjustment
•
Set the maximum fan speed according to
section 4.3.1. Check the gas flow rate on
the gas meter for compliance with Table
4.3.2.1. If you need to change the gas
flow, turn the screw (item 6, Fig. 4.2.1.).
•
Turn the screw to the left to increase
the flow, turn the screw to the right to
decrease it. Use the gas meter to read
and set the gas flow value.
•
Set the minimum fan speed according to 4.3.1
•
During the boiler’s operation, measure the gas inlet
pressure at the measuring point (item 3, Fig. 4.2.1). The
pressure depending on the type of gas is given in Table
4.3.2.1,
•
Remove the cap from the measuring point (item 5,
Fig.4.2.1.)
•
Set the minimum gas flow according to the values given in
Table 4.3.2.1 by using the adjusting screw (item 5, Fig. 4.2.1),
•
Turn the screw to the right to increase the flow, turn the
screw to the left to decrease it.
