Service And Maintenance; Adjustments - Ferroli DIVATOP D Instructions For Use, Installation & Maintenance

DIVATOP D F

3. Service and maintenance

Important
All adjustment, conversion, commissioning and maintenance operations des-
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cribed below must only be carried out by Qualified Personnel (meeting the pro-
fessional technical requirements of current regulations) such as the personnel
of the Local After-Sales Technical Service.
FERROLI declines any liability for damage and/or injury caused by unqualified
and unauthorized persons tampering with the unit.

3.1 Adjustments

Gas conversion
ALL COMPONENTS DAMAGED DURING CONVERSION OPERATIONS MUST
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BE REPLACED.
The unit can operate on natural gas or LPG and is factory-set for use with one of these two gases, as clearly shown on
the packing and on the data plate. Whenever a gas different from that for which the unit is arranged has to be used, the
special conversion kit will be required, proceeding as follows:
1. Disconnect the water heater supply and turn off the gas cock.
2. Replace the nozzles at the main burner, fitting the nozzles specified in the technical data table in cap. 4 "Technical
data and characteristics", according to the type of gas used
3. Switch the boiler power on and open the gas cock.
4. Change the parameter for the type of gas:
• put the boiler in standby mode
• change the parameter b01 according to the type of gas (0 = NG, 1 = LPG). See "Configuration Menu" on
page 70.
5. Adjust the minimum and maximum pressures at the burner (see relevant par.), setting the values indicated in the
technical data table for the type of gas used
6. Apply near the data plate the sticker contained in the conversion kit, as proof of the conversion.
Activation of Auto-setting function for gas valve calibration
THIS PROCEDURE MUST ONLY BE CARRIED OUT IN THE FOLLOWING CASES: GAS VALVE REPLACEMENT,
CARD REPLACEMENT, CONVERSION FOR GAS CHANGE.
The B&P Gas Valve (with integrated modulating operator) does not provide for mechanical calibration: the minimum
and maximum power adjustments are therefore done electronically via the two parameters q01 and q02.
Contents Description
q01 Absolute minimum current offset
q02 Absolute maximum current offset
Gas valve pre-calibration
1. Connect a pressure gauge to monitor the gas valve outlet pressure.
2. Enable the Auto-setting function (Parameter b12=1).
3. Access the Main menu [MENU] using the button
Follow the path installer menu [Service] >enter the Password 1234 (see fig. 15) >Setup [Setup].
Confirm with the button
4. In about 8 seconds, the boiler finds the ignition point and the initial values of parameters q01 and q02.
EN
Natural Gas Propane Gas
0÷100 0÷150
0÷100 0-150
.
.
cod. 3542B970 - Rev. 02 - 09/2023
66