Biasi boiler service mode

ActivA

Covers: ActivA 18S, ActivA 25C, ActivA 25S, ActivA 30C, ActivA 30S, ActivA 35C

GC 41-583-11, 41-583-12, 41-583-13, 47-583-21, 47-583-22, 47-583-23

Enter chimney sweep mode (minimum output)

1. Press keys A and C at the same time until the display shows the letters LP that alternate with the heating water temperature value indicating the activation of the chimney sweep function at minimum output.
2. Open at least one hot water tap fully.

From manual 17962.1825.1, page 28.

Force maximum output in heating mode (chimney sweep)

1. Press and hold the up-arrow key (A), the dot/thermometer key (B) and the down-arrow key (C) together for 10 seconds until the display shows Pr 01
2. Press the up-arrow key (A) and the down-arrow key (C) together until the display shows LP alternating with the heating water temperature value, indicating the chimney sweep function at minimum output
3. Press key A to vary the output in chimney sweep mode: when the display shows the letters cP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in heating mode

From manual 17962.1825.1, page 30.

Force maximum output in domestic hot water mode (chimney sweep)

1. To enter the parameters setting mode press contemporary the 3 keys A, B and C for 10 seconds until the display shows Pr 01
2. Press keys A and C at the same time until the display shows the letters LP that alternate with the heating water temperature value, indicating the activation of the chimney sweep function at minimum output
3. Open at least one hot water tap fully
4. Allow the analyser to give a stable reading
5. Read the CO2 % value
6. Press key A to vary the output in chimney sweep mode: when the display shows the letters cP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in heating mode
7. Press further key A to vary again the output in chimney sweep mode: when the display shows the letters dP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in domestic hot water mode

From manual 17962.1825.1, page 30.

Exit chimney sweep mode

1. Press keys A, B, and C at the same time again to exit the chimney sweep mode and return to the previously set boiler status.

From manual 17962.1825.1, page 31.

CO₂ and CO from manual 17962.1825.1, page 30, 31. Check against the data badge.

ActivA Wall hung, fanflue, roomsealed, high efficiency gas boiler and

Covers: Activ A 12OV, Activ A 15OV, Activ A 20OV, Activ A 25OV, Concept 400 20 1 Mfs

GC 41-583-14, 41-583-15, 41-583-16, 41-583-17

Setting the boiler chimney sweep function

1. Enter in programming mode by pressing keys 9, 10, and 11 for 10 seconds at the same time until the letters Pr that alternate with code 01 are displayed on the LCD display, indicating that parameter 01 has been activated.
2. For chimney sweep function at minimum output: press keys 10 and 11 at the same time until the LCD display displays the letters LP that alternate with the heating water temperature value, indicating activation of the chimney sweep function at minimum output.
3. For chimney sweep function at maximum output in heating mode: press key 11 to vary the output until the LCD display displays the letters CP that alternate with the heating water temperature value.
4. For chimney sweep function at maximum output: press key 11 further until the LCD display displays the letters DP that alternate with the heating water temperature value.
5. To exit the chimney sweep mode, press keys 9, 10, and 11 at the same time again to return to the previously set boiler status.

From manual 17962.2018.0, page 77.

CO₂ and CO from manual 17962.2018.0, page 25. Check against the data badge.

ADVANCE (manual 17962.3092.2)

Covers: Advance 25C

GC 47-583-43

Enter chimney sweep mode (minimum output)

1. Press sequentially and hold in the 3 keys (G - H - I) for 10 seconds until the display shows Figure 11.6.
2. Press keys G and H at the same time until the display shows the letters LP that alternate with the heating water temperature value.

From manual 17962.3092.2, page 30.

Force maximum output in heating mode (cP)

1. Press key G to vary the output in chimney sweep mode when the display shows the letters cP that alternate with the heating water temperature value.

From manual 17962.3092.2, page 30.

Force maximum output in domestic hot water mode (dP)

1. Press further key G to vary again the output in chimney sweep mode when the display shows the letters dP that alternate with the heating water temperature value.

From manual 17962.3092.2, page 30.

Exit chimney sweep mode

1. Press keys G - H - I at the same time again to exit the chimney sweep mode and return to the previously set boiler status.

From manual 17962.3092.2, page 30.

CO₂ and CO from manual 17962.3092.2, page 27, 30. Check against the data badge.

ADVANCE (manual 17962.3092.3)

Covers: Advance 25S, Advance 30C, Advance 30S, Advance 35C

GC 41-583-33, 41-583-34, 47-583-44, 47-583-45

Enter chimney sweep mode (minimum output)

1. Press sequentially and hold in the 3 keys (G - H - I) for 10 seconds until the display shows Figure 11.6.
2. Press keys G and H at the same time until the display shows the letters LP that alternate with the heating water temperature value, indicating activation of the chimney sweep function at minimum output.

From manual 17962.3092.3, page 31.

Force maximum heating rate in chimney sweep mode

1. Press key G to vary the output in chimney sweep mode until the display shows the letters cP alternating with the heating water temperature value.

From manual 17962.3092.3, page 31.

Force maximum DHW rate in chimney sweep mode

1. Press further key G to vary again the output until the display shows the letters dP alternating with the heating water temperature value.

From manual 17962.3092.3, page 31.

Exit chimney sweep mode

1. Press keys G - H - I at the same time again to exit the chimney sweep mode and return to the previously set boiler status.

From manual 17962.3092.3, page 31.

CO₂ and CO from manual 17962.3092.3, page 21, 24, 28, 31. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows. Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. (page 32)

Advance Plus

Covers: Advance Plus 25C, Advance Plus 25S, Advance Plus 30C, Advance Plus 35C

GC 41-583-23, 47-583-29, 47-583-30, 47-583-31

Enter chimney sweep function (Parameter 09)

1. Turn on the boiler, switching on the fused spur isolation switch.
2. Open the gas inlet valve.
3. Turn on the boiler and operate for 2 minutes to pre-heat the flue, before commencing any adjustments.
4. Press contemporarily the 3 keys (G - H - I) for 10 seconds until the display shows the parameters setting mode.
5. Press keys G and H at the same time until the display shows the letters LP that alternate with the heating water temperature value, indicating the activation of the chimney sweep function at minimum output.
6. Press key G to vary the output in chimney sweep mode: when the display shows the letters cP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in heating mode.
7. Press further key G to vary again the output in chimney sweep mode: when the display shows the letters dP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in domestic hot water mode.
8. Press keys G - H - I at the same time again to exit the chimney sweep mode and return to the previously set boiler status.

From manual 17962.2200.0, page 31.

CO₂ and CO from manual 17962.2200.0, page 25, 29, 31. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows. Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. (page 32)

Advance Plus and

Covers: Advance Plus 16S, Advance Plus 30S

GC 41-583-22, 41-583-24

Setting the boiler chimney sweep function

1. Enter in "programming mode" by pressing keys 11 - 12 - 13 for 10 seconds at the same time until the letters Pr that alternate with code 01 are displayed on the LCD display, indicating that "parameter 01" has been activated.
2. Chimney sweep function at minimum output in domestic hot water mode: Press keys 12 and 13 at the same time until the LCD display displays the letters LP that alternate with the heating water temperature value, indicating the activation of the "chimney sweep function" at minimum output.
3. Chimney sweep function at minimum output in heating mode: By pressing 13 it is possible to change power in chimney sweep mode: with the letters hP on the LCD display which alternate between the heated water temperature, we are in the "chimney sweep function" at the minimum power during heating.

From manual 17962.2201.0, page 76.

CO₂ and CO from manual 17962.2201.0, page 25. Check against the data badge.

Advance Plus ERP

Covers: Advance Plus 25C ERP, Advance Plus 25S ERP, Advance Plus 30C ERP, Advance Plus 30S ErP, Advance Plus 35C ERP

GC 41-583-28, 41-583-29, 47-583-35, 47-583-36, 47-583-37

Enter Chimney Sweep Mode (Minimum Output)

1. Turn on the boiler, switching on the fused spur isolation switch.
2. Open the gas inlet valve.
3. Turn on the boiler and operate for 2 minutes to pre-heat the flue, before commencing any adjustments.
4. Open at least one hot water tap fully.
5. Press sequentially and hold in the 3 keys (G - H - I) for 10 seconds until the display shows the parameters setting mode.
6. Press keys G and H at the same time until the display shows the letters LP that alternate with the heating water temperature value, indicating the activation of the chimney sweep function at minimum output.

From manual 17962.2516.2, page 30.

Force Maximum Rate (Chimney Sweep Mode - Heating / DHW)

1. Press key G to vary the output in chimney sweep mode: when the display shows the letters cP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in heating mode.
2. Press further key G to vary again the output in chimney sweep mode: when the display shows the letters dP that alternate with the heating water temperature value, the chimney sweep function is at maximum output in domestic hot water mode.

From manual 17962.2516.2, page 31.

Exit Chimney Sweep Mode

1. Press keys G - H - I at the same time again to exit the chimney sweep mode and return to the previously set boiler status.

From manual 17962.2516.2, page 31.

CO₂ and CO from manual 17962.2516.2, page 31. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows: Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. (page )

Advance Plus ERP and

Covers: Advance Plus 16S ErP

GC 41-583-27

Setting the boiler chimney sweep function

1. Enter in 'programming mode' by pressing keys 11, 12, and 13 for 10 seconds at the same time until the letters Pr that alternate with code 01 are displayed on the LCD display, indicating that 'parameter 01' has been activated.
2. Press keys 12 and 13 at the same time until the LCD display displays the letters LP that alternate with the heating water temperature value, indicating the activation of the 'chimney sweep function' at minimum output.
3. By pressing 13 it is possible to change power in chimney sweep mode: with the letters hP on the LCD display which alternate between the heated water temperature, we are in the 'chimney sweep function' at the minimum power during heating.
4. Press key 13 to vary the output in chimney sweep mode: when the LCD display displays the letters cP that alternate with the heating water temperature value, the 'chimney sweep function' is at maximum (eventually range rated) output in heating mode.
5. Press further key 13 to vary again the output in chimney sweep mode: when the LCD display displays the letters dP that alternate with the heating water temperature value, the 'chimney sweep function' is at maximum output in domestic hot water mode.
6. Press keys 11, 12, and 13 at the same time again to exit the 'chimney sweep mode' and return to the previously set boiler status.

From the installation and servicing manual, page 75.

CO₂ and CO from the installation and servicing manual, page 23. Check against the data badge.

ANTARES

Covers: Antares 25C M300V.2025 SM, Antares 30C M300V.2530 SM, Antares 35C M300V.3035 SM

GC 47-583-52, 47-583-53, 47-583-54

Accessing the "Service" menu (Installer)

1. Press key "D" to access the main menu.
2. Press key "A" or "B" to select the desired menu (Assistance).
3. Press key "D" to access the selected menu.
4. Press key "D" again and enter the password (6683). Use key "F" or "G" to enter the corresponding value and key "A" or "B" to move to the next value. Press key "D" again to confirm the password.
5. Press key "F" or "G" to select "Service".

From manual 17962.3950.0, page 15.

Chimney Sweep Function Activation

1. Go to the "Service" area following the procedure described in section 4.4.
2. Press button "D" to go to the main menu.
3. Press button "A" or "B" to select the desired menu (Assistance).
4. Press button "D" to access the selected menu.
5. Press button "A" or "B" to select the desired menu from those available (Special functions).
6. Press button "D" again to highlight the value to be changed.
7. Press button "A" or "B" to select the desired menu from those available (Chimney sweep function).
8. Press button "D" again to highlight the value to be changed.
9. Use button "F" or "G" to modify the value of the parameter according to the type of check to be run (0 = Off, 1 = DHW minimum output, 2 = heating minimum output, 3 = heating maximum output, 4 = DHW maximum output).
10. Press button "D" to confirm the change or button "E" to exit without changing the value.

From manual 17962.3950.0, page 33.

Fast Calibration of the Gas Valve

1. Turn on the boiler and operate for 2 minutes to pre-heat the flue, before commencing any adjustments.
2. Make sure that the room thermostat is in the "heat request" position.
3. Open at least one hot water tap fully.
4. Go to the "Service" area following the procedure described in section 4.4.
5. Press button "D" to go to the main menu.
6. Press button "A" or "B" to select the desired menu (Assistance).
7. Press button "D" to access the selected menu.
8. Press button "A" or "B" to select the desired menu from those available (Special functions).
9. Press button "D" again to activate the function (Fast calibration).

From manual 17962.3950.0, page 34.

CO₂ and CO from manual 17962.3950.0, page 34. Check against the data badge.

After each gas adjustment, the valve adjustment components must be sealed. (page 33)

ANTARES System (System)

Covers: Antares System

GC 41-583-41

Accessing the Service Menu

1. From the main screen, press key D to access the main menu.
2. Select the 'Assistance' menu using keys A or B.
3. Press key D to access the selected menu.
4. Enter password '6683'. Use keys F or G to enter each digit and A or B to move between positions. Press D to confirm.
5. Select 'Service' using keys F or G and confirm with D.

From manual 17962.3954.0, page 15.

CO₂ and CO from manual 17962.3954.0, page 30. Check against the data badge.

BASICA COND

Covers: Basica Cond 24C M275V.2024 SM, Basica Cond 28C M275V.2428 SM, Basica Cond 32C M275V.2832 SM

GC 47-583-49, 47-583-50, 47-583-51

Enter Programming Mode and Chimney Sweep Function

1. To enter in the programming mode press at the same time the 2 keys F and G and hold in for 5 second until the code P00 appears on the display.
2. Scroll the various parameters using keys A or B until the LCD display shows the code P06.
3. Press key E to show the value of parameter P06 on the LCD display.
4. Press E to show number 01 (minimum power) or 02 (maximum DHW output) indicating activation of the chimney sweep function.
5. Press A to confirm the value entered and activate the function.
6. Press F to exit programming mode.

From manual 17962.3485.0, page 30.

Exit Chimney Sweep Function

1. To exit the chimney sweeper, reset parameter P06 to 00 or wait 15 minutes with the boiler off (OFF).

From manual 17962.3485.0, page 32.

CO₂ and CO from manual 17962.3485.0, page 10, 31, 32. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows. Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. (page 32)

Basica System 2022 (System)

Covers: Basica System 2022

GC 41-583-40

Chimney Sweep Activation

1. Press F and G keys simultaneously for 5 seconds until P00 appears.
2. Scroll using A/B to P06.
3. Press E to show value.
4. Select 01 for minimum power or 02 for maximum power.
5. Press A to confirm and activate.
6. Press F to exit programming mode.

From manual 17962.3488.0, page 26.

CO₂ and CO from manual 17962.3488.0, page 26, 27. Check against the data badge.

DINA

Covers: Dina 25C M280C.2025 SM, Dina 30C M280C.2530 SM, Dina 35C M280C.3035 SM

GC 47-583-58, 47-583-59, 47-583-60

Chimney Sweep Function / Minimum Power Activation

1. Press at the same time the 2 keys F and G and hold in for 5 second until the code P00 appears on the display.
2. Scroll the various parameters using keys A or B until the LCD display shows the code P06.
3. Press key E to show the value of parameter P06 on the LCD display.
4. Press E and the LCD display shows the number 01, indicating activation of the chimney sweep function at minimum output.
5. With the value flashing, pressing key F will confirm the value entered and activate the function.

From the installation and servicing manual, page 33.

Chimney Sweep Function / Maximum DHW Output Activation

1. Press at the same time the 2 keys F and G and hold in for 5 second until the code P00 appears on the display.
2. Scroll the various parameters using keys A or B until the LCD display shows the code P06.
3. Press key E to show the value of parameter P06 on the LCD display.
4. Press E and the LCD display shows the number 02, indicating activation of the chimney sweep function at maximum DHW output.
5. Press A to confirm the value entered and activate the function.
6. Press F to exit programming mode.

From the installation and servicing manual, page 33.

CO₂ and CO from the installation and servicing manual, page 33, 34. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows: Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. (page )

GARDA Combi

Covers: Garda, Garda M90f. 24S, Garda M90f. 24SR, Garda M90f. 28S, Garda M90f. 28SR

GC 41-970-10, 41-970-11, 47-970-19, 47-970-20, 47-970-22

Enter service operation mode

1. With the boiler switched ON (or), by moving and re-setting to its original position any of the function selectors 13, the Electronic starting control p.c.b. goes into service operation mode and all the lamps are then activated.

From manual 17962.0918.7, page 19.

Exit service operation mode

1. To reset the Electronic starting control p.c.b. to the normal operation it is necessary to turn the knob to the position or switch off the boiler for a short while at the fused spur isolation switch.

From manual 17962.0918.7, page 19.

Force minimum gas pressure

1. Move function selector 1 to the OFF position in order to allow the adjustment of the minimum gas pressure at the burner (on the modulation operator of the gas valve).
2. After any adjustment operation the selector has to be brought back to the normal position (ON).

From manual 17962.0918.7, page 19.

Force ignition gas pressure adjustment

1. Move the function selector 3 to the OFF position and use the adjustment device 15 (ACC).
2. Adjust the gas pressure at the injectors to the value indicated in the tables of the User/Installation manual.
3. After the adjustment operations bring the selector 3 back to the normal position (ON).

From manual 17962.0918.7, page 20.

Garda Plus HE

Covers: Garda Plus HE M110.32SM/E

GC 47-970-32

Entering Service / Adjustment Mode (Max CH Output / CO2 Adjustment)

1. Turn on the electricity supply to the boiler, switching on the fused spur isolation switch.
2. Set the function knob to the required position for adjustment modes.
3. Keep pressed the reset button for about 10 seconds until the lock-out signal lamp blinks.
4. Press the reset button repeatedly to cycle through and obtain the desired configuration lamps indication.
5. Turn the D.H.W. temperature knob to change the setting (e.g. coefficient K, max useful output, or minimum/maximum gas valve setting).
6. To memorize the setting, keep pressed the reset button for about 5 seconds until the lights briefly blink simultaneously.
7. To reset the boiler to normal operation, turn it OFF and ON by the function selector knob, or wait for the automatic 10-minute timeout.

From the installation and servicing manual, page 33.

CO₂ and CO from the installation and servicing manual, page 19. Check against the data badge.

The maximum and minimum gas pressures are already set during this quality control process and the appliance does not need any particular adjustment. (page 32)

Inovia

Covers: Inovia 16S, Inovia 25C, Inovia 25S, Inovia 35C

GC 41-583-25, 41-583-26, 47-583-32, 47-583-34

Enter chimney sweep mode (minimum output in domestic hot water mode)

1. Press keys G and H at the same time until the display shows the letters LP that alternate with the heating water temperature value

From manual 17962.2197.0, page 34.

Chimney sweep mode - minimum power during heating

1. Press key G to vary the output in chimney sweep mode when the display shows the letters hP that alternate with the heating water temperature value

From manual 17962.2197.0, page 34.

Chimney sweep mode - maximum output in heating mode

1. Press key G to vary the output in chimney sweep mode when the display shows the letters cP that alternate with the heating water temperature value

From manual 17962.2197.0, page 34.

Chimney sweep mode - maximum output in domestic hot water mode

1. Press key G to vary again the output in chimney sweep mode when the display shows the letters dP that alternate with the heating water temperature value

From manual 17962.2197.0, page 35.

Exit chimney sweep mode

1. Press keys G - H - I at the same time again to exit the chimney sweep mode and return to the previously set boiler status

From manual 17962.2197.0, page 35.

CO₂ and CO from manual 17962.2197.0, page 23, 34, 35. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows: Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. Adjust the gas valve using the flue analyser as described in section 11.3. (page 36)

Inovia ERP

Covers: Inovia 25C ERP, Inovia 25S ERP, Inovia 30C ERP, Inovia 35C ERP

GC 41-583-30, 47-583-38, 47-583-39, 47-583-40

Enter chimney sweep mode (minimum output, heating)

1. Press keys G, H, and I sequentially and hold for 10 seconds until the display shows parameters
2. Press keys G and H at the same time until the display shows the letters LP alternating with the heating water temperature value

From manual 1796221974, page 33.

Force maximum heating output in chimney sweep mode

1. Press key G to vary the output until the display shows the letters cP alternating with the heating water temperature value

From manual 1796221974, page 33.

Force maximum domestic hot water output in chimney sweep mode

1. Press key G further to vary the output until the display shows the letters dP alternating with the heating water temperature value

From manual 1796221974, page 33.

Exit chimney sweep mode

1. Press keys G, H, and I at the same time again to exit the chimney sweep mode and return to the previously set boiler status

From manual 1796221974, page 34.

CO₂ and CO from manual 1796221974, page 33, 34. Check against the data badge.

Before fitting a new valve, it is advisable to preset it as follows. Remove the brass plug and turn the plastic screw inside it fully clockwise until it stops. Do not overtight. Turn it counter-clockwise 2 and 3/4 turns. Adjust the gas valve using the flue analyser. (page 34)

Parva M90.24S, M90.28S, M90.24SR, M90.28SR

Covers: Parva 24S

GC 47-970-13

Accessing Internal Controls (Service Access)

1. Remove screws I and J from the control panel
2. Loosen screws K
3. Pull the control panel forward and rotate 45° downwards
4. Loosen screws L and remove the service panel to access PCB dip-switches

From manual 17962.0841.2, page 30.

CO₂ and CO from manual 17962.0841.2, page 21. Check against the data badge.

Rinnova Adaptive (manual 17962.3466.0)

Covers: Rinnova Adaptive 25C M300V.2025 SM, Rinnova Adaptive 30C M300V.2530 SM, Rinnova Adaptive 35C M300V.3035 SM

GC 47-583-46, 47-583-47, 47-583-48

Enter Chimney Sweep Function / Service Mode

1. To enter in the parameters setting mode press at the same time the 2 keys 'B' and 'D' and hold in for 5 second until the display shows the parameters menu.
2. Scroll the various menus using keys 'B' or 'D' until Ch5 (Chimney sweep) appears on the LCD display.
3. To enter the selected menu press key 'C' for 1 second.
4. The letters LP, alternating with the minimum heating water temperature appear on the screen indicating the activation of the 'chimney sweep function' at minimum power.
5. Press key 'D' to vary the output in chimney sweep mode: when the display shows the letters dP (chimney sweep active in maximum D.H.W. mode) that alternate with the heating water temperature value, the 'chimney sweep function' is at maximum output in domestic hot water mode.

From manual 17962.3466.0, page 32.

Automatic calibration of the gas valve

1. Turn on the boiler and operate for 2 minutes to pre-heat the flue, before commencing any adjustments.
2. Make sure that the room thermostat is in the 'heat request' position.
3. Open at least one hot water tap fully.
4. To enter in the parameters setting mode press at the same time the 2 keys 'B' and 'D' and hold in for 5 second.
5. Scroll the various menus using keys 'B' or 'D' until CAF appears on the LCD display.
6. Press the key 'C' until the StF (Start Full) appears on the LCD display.
7. Allow the program to perform the entire process, at the end of which FuF (Full Finish) will be displayed.

From manual 17962.3466.0, page 32.

CO₂ and CO from manual 17962.3466.0, page 32. Check against the data badge.

After each gas adjustment, the valve adjustment components must be sealed. (page 31)

RINNOVA ADAPTIVE (manual 1796234830)

Covers: Rinnova Adaptive 30S M300V.30 SR

GC 41-583-39

Entering Chimney Sweep Function (Parameter Ch5)

1. To enter in the parameters setting mode press at the same time the 2 keys 'A' and 'C' and hold in for 5 second until the display shows the parameters setting screen.
2. Scroll the various menus using keys 'A' or 'C' until Ch5 (Chimney sweep) appears on the LCD display.
3. To enter the selected menu press key 'B' for 1 second.

From manual 1796234830, page 27.

Forcing Minimum and Maximum Rate in Chimney Sweep Mode

1. When LP appears on the screen alternating with the minimum heating water temperature, the chimney sweep function is active at minimum power.
2. Press key 'C' to vary the output in chimney sweep mode: when the display shows the letters dP (chimney sweep active in maximum C.H. mode) that alternate with the heating water temperature value, the chimney sweep function is at maximum output in C.H. mode.

From manual 1796234830, page 27.

Automatic Calibration of the Gas Valve

1. Turn on the boiler and operate for 2 minutes to pre-heat the flue, before commencing any adjustments.
2. Make sure that the room thermostat is in the 'heat request' position.
3. Open at least one hot water tap fully.
4. To enter in the parameters setting mode press at the same time the 2 keys 'A' and 'C' and hold in for 5 second.
5. Scroll the various menus using keys 'A' or 'C' until CAF appears on the LCD display.
6. Press the key 'B' until the StF (Start Full), alternating with 34 (calibration value), appears on the LCD display.
7. Allow the program to perform the entire process, at the end of which FuF (Full Finish) will be displayed.

From manual 1796234830, page 27.

After each gas adjustment, the valve adjustment components must be sealed. (page 26)

Riva Advance HE and

Covers: Riva Advance HE M110B.24SR/C

GC 41-583-07

Entering service/adjustment mode (coefficient K / gas setting)

1. Turn on the electricity supply to the boiler, switching on the fused spur isolation switch.
2. Set the function knob 7 as illustrated in Fig. 7.10.
3. Keep pressed the reset button 6 for about 10 seconds until the lock-out signal lamp 5 blinks.
4. The lamps should give the indication as in Fig. 7.11 (coefficient K setting). If not, press the reset button repeatedly to obtain it.
5. To change the setting turn the knob 8 on a position corresponding to the desired coefficient K. By turning the knob 8, the lock-out signal lamp 5 blinks quickly (2 per second) indicating that the setting has changed and must be memorised.

From manual 1796215290, page 41.

CO₂ and CO from manual 1796215290, page 19. Check against the data badge.

Riva Compact HE (manual 17962.1114.0)

Covers: Riva Compact HE M96.24SM/C, Riva Compact HE M96.28SR/C

GC 41-970-12, 47-970-23

Entering service mode / forcing minimum gas pressure

1. Remove the service panel (section 2.3).
2. Set the dip-switch selector 1 (Fig. 32) to the OFF position to force the boiler to operate at minimum gas pressure.

From manual 17962.1114.0, page 23.

Exiting service mode / normal operation

1. Turn the boiler off and re-connect the wire to the modulating operator (or set the dip-switch selector 1 back to the ON position).
2. Bring selector 3 back to the normal position (ON) after ignition gas pressure adjustment.

From manual 17962.1114.0, page 27.

Riva Compact HE (manual 17962.1165.3)

Covers: Riva Compact HE M96.28SM/C2

GC 47-583-06

Entering service/adjustment mode for ignition gas pressure

1. Turn the boiler OFF.
2. Remove the front panel of the case.
3. Open the gas valve outlet pressure test point and connect the gauge.
4. Turn the boiler ON positioning the function selector knob as indicated in the manual.
5. Keep pressed the reset button for about 10 seconds until the lock-out signal lamp blinks.
6. Press the reset button repeatedly until the lamps give the required indication for the adjustment mode.
7. Rotate the adjustment knob on a position corresponding to an adequate ignition pressure.

From manual 17962.1165.3, page 22.

RIVA COMPACT HE MK2 System boiler and

Covers: Riva Compact HE MK2

Entering Gas Type Mode / Service settings

1. Turn the boiler OFF positioning the function selector as indicated in the manual.
2. Disconnect the electrical connectors of the C.h. temperature probe NTC.
3. Keep pressed the reset button for about 10 seconds until the lock-out signal lamp blinks.
4. Reconnect the electrical connectors of the C.h. temperature probe NTC.
5. Press the reset button repeatedly (4 times) until the lamps give the gas type mode indication.
6. To change the setting, turn the service knob on a position corresponding to the gas used.
7. To memorize the setting, keep pressed the reset button for about 5 seconds until the lamps briefly blink simultaneously.

From manual 1796215520, page 34.

CO₂ and CO from manual 1796215520, page 17. Check against the data badge.

Important: after the gas pressure checks and any adjustment operations, all of the test points and adjustment devices must be sealed. Replace the adjustment protection cap. (page 32)

RIVA COMPACT M90E.24S

Covers: Riva Compact M90E.24S

GC 47-970-17

Entering service operation mode

1. With the boiler switched ON (c.h. or d.h.w.), move and re-setting to its original position any of the function selectors on the Electronic control p.c.b.
2. The Electronic control p.c.b. goes into service operation mode and all three lamps are then activated.

From manual 17962.0916.5, page 20.

Exiting service operation mode

1. Turn the knob to the position or switch off the boiler for a short while at the fused spur isolation switch.

From manual 17962.0916.5, page 20.

Force ignition gas pressure

1. Move function selector 3 to the OFF position.
2. Use potentiometer '11' marked 'ACC.' on the Electronic control p.c.b. to adjust gas pressure at the injectors during the ignition phase.
3. Bring selector 3 back to the normal position (ON) after adjustment.

From manual 17962.0916.5, page 21.

Riva Plus

Covers: Riva Plus M90D.24S, Riva Plus M90D.24SR, Riva Plus M90D.28S

GC 41-970-08, 47-970-15, 47-970-16

Forcing Minimum Gas Pressure / Service Adjustment Mode

1. Access the main control panel by removing the service panel or control panel lid.
2. Locate selector switch no. 1 (selector 1) on the electronic control PCB.
3. Set selector 1 to the OFF position to force the boiler to operate at the minimum gas pressure in order to allow adjustment of the minimum gas pressure at the burner on the modulation operator of the gas valve.
4. After any adjustment operation, bring the selector back to the normal position ON.

From the installation and servicing manual, page 23.

Riva Plus HE

Covers: Riva Plus HE M296.28SR/C

GC 41-583-19

Enter service mode / setting function modes

1. Turn the boiler OFF positioning the function selector A.
2. Disconnect the electrical connectors of the c.h. temperature probe NTC.
3. Keep pressed the reset button D for about 10 seconds until the lock-out signal lamp E blinks.
4. Connect the electrical connectors of the c.h. temperature probe NTC.

From manual 17962.1551.2, page 18.

Important: after the gas pressure checks and any adjustment operations, all of the test points must be sealed and replace the adjustment protection cap. (page 25)

Riva Plus HE ERP

Covers: Riva Plus HE 24C ErP

GC 47-583-41

Entering service mode / output setting (C.H. temperature probe connectors method)

1. Turn the boiler OFF positioning the function selector A as indicated in Figure 10.6.
2. Disconnect the electrical connectors C of the C.H. temperature probe NTC in Figure 10.7.
3. Keep pressed the reset button D for about 10 seconds until the lock-out signal lamp E blinks.
4. Connect the electrical connectors C of the C.H. temperature probe NTC in Figure 10.7.
5. Press the reset button repeatedly to obtain the required setting mode (useful output, re-ignition frequency, ignition pressure, or D.H.W. flowmeter mode).
6. Turn the knob B on a position corresponding to the desired setting/model.
7. To memorize the setting keep pressed the reset button D for about 5 seconds until the lights F briefly blink simultaneously.
8. To reset the boiler to normal operation turn it OFF and ON by the function selector knob A.

From manual 17962.2514.1, page 21.

Important: after the gas pressure checks and any adjustment operations, all of the test points must be sealed and replace the adjustment protection cap. (page 29)

Savio Gaia 428S

Covers: Savio Gaia 424S, Savio Gaia 428S

GC 47-970-08, 47-970-09

Max CH power regulation using RISC

1. Use device on circuit board marked 'RISC' to limit the maximum useful output delivered in the CH function.
2. This adjustment does not influence the maximum useful output delivered in DHW function.
3. By rotating the device clockwise, the pressure increases.

From the installation and servicing manual, page 23.

It is not permissible to change the factory setting of the safety thermostat. (page 42)