Glow-worm boiler service mode

18sxi

Covers: 18sxi, 30sxi

GC 41-047-62, 41-047-72, 47-047-62

Entering Service Mode

1. Unclip controls fascia to reveal the service potentiometer on the rear of the user interface.
2. Ensure external controls are calling for heat.
3. Rotate the service potentiometer to the mid point or 3 o’clock position.
4. The fan speed should reduce and '12' should be shown flashing on the digital display.

From manual 0020008155A, page 27.

Exiting Service Mode

1. Rotate the service potentiometer fully anti-clockwise so that the display indicates the water temperature.

From manual 0020008155A, page 27.

CO₂ and CO from manual 0020008155A, page 11, 28. Check against the data badge.

The gas valve is factory set and should need no adjustment. (page 28)

24ci / 18si

Covers: 18si / 24ci

Forcing Rates / Service Procedure

1. Gain access to gas control valve and connect pressure gauge.
2. Unclip control box to access potentiometer P3.
3. Run appliance in heating mode.
4. Adjust central heating output to minimum via P3.
5. Adjust potentiometer P6 to desired burner pressure.
6. Return P3 to initial value.

From manual 4000123942-2, page 29.

CO₂ and CO from manual 4000123942-2, page 11. Check against the data badge.

24cxi, 30cxi, 38cxi

Covers: 30cxi

GC 47-047-24

Enter Service Mode / Force Max and Min Rate

1. Unclip the controls fascia to reveal the service potentiometer on the rear of the user interface.
2. Turn on the mains electrical supply and turn on the gas service cock. Switch the boiler on.
3. Ensure external controls are calling for heat. The boiler should fire automatically.
4. Using an electrical screwdriver, rotate the service potentiometer to the mid point or 3 o'clock position (fan speed reduces to minimum and '12' flashes on the digital display for minimum rate check).
5. Rotate the service potentiometer fully clockwise to indicate the maximum fan speed (39±1 for 24cxi, 45±1 for 30cxi and 38cxi in central heating; 51±1 for 24cxi, 57±1 for 30cxi and 38cxi in domestic hot water max demand) for maximum rate check.
6. After checking combustion, rotate the service potentiometer fully anti-clockwise so that the display indicates the water temperature.

From manual 0020013349-02, page 29.

CO₂ and CO from manual 0020013349-02, page 12, 29. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. (LPG (G31) should be adjusted as described in the commissioning instructions). (page 30)

24cxi, 30cxi, 38cxi High Efficiency Condensing Combination Boilers

Covers: 24cxi, 38cxi

GC 47-047-23, 47-047-27

Entering Service Mode / Checking Combustion (Maximum Fan Speed)

1. Unclip the controls fascia and hinge it down with the power off and the appliance cold to reveal the potentiometers on the rear of the User interface.
2. Turn on the electrical supply and ensure external controls are calling for heat so the boiler fires automatically.
3. Allow the boiler to fire for a minimum of 60 seconds.
4. Using an electrical screwdriver, rotate the service potentiometer fully clockwise to display the flashing maximum fan speed on the appliance fascia (57 for 38cxi in domestic hot water max demand mode).

From manual 2000225065A, page 30.

Checking Combustion at Minimum Rate

1. Rotate the service potentiometer fully anti-clockwise and hold it in this position for about 5 seconds.
2. Rotate the service potentiometer clockwise to the mid-point or 3 o'clock position to reduce fan speed to 1200 rpm ('12' flashing on LCD display).

From manual 2000225065A, page 30.

Exiting Service Mode

1. After checking combustion, rotate the service potentiometer fully anti-clockwise so that the display indicates the water temperature.

From manual 2000225065A, page 30.

CO₂ and CO from manual 2000225065A, page 10. Check against the data badge.

The gas valve is factory set and should need no adjustment. It should be checked that the supply pressure is 20mbar when the boiler is firing at full rate. (page 27)

30ci plus

Covers: 30ci Plus

GC 47-047-22

Enter Service / Parameter Mode

1. Press the hand icon button and keep pressed for 10 seconds.
2. When the spanner icon is shown on display, select code 96 using + or - buttons.
3. Press the hand icon button to show the first menu to be adjusted.

From manual 4000121772-2, page 30.

CO₂ and CO from manual 4000121772-2, page 10. Check against the data badge.

Betacom

Covers: Betacom 24, Betacom 30

GC 47-019-04, 47-019-05

Enter chimney-sweeper (maximum output) function for adjustment / combustion check

1. Supply the boiler and turn the Central Heating knob to Summer position.
2. Make sure that the room thermostat is calling for heat (e.g. raise the requested room temperature manually) or open a hot water tap.
3. Turn the Hot Water knob on position and wait (about 5 seconds) that green indicator flashes short pulses.
4. When that happens, turn the Hot Water knob on the scale from I to maximum output. The burner ignites at the maximum output.

From manual 982.160116/001, page 38.

CO₂ and CO from manual 982.160116/001, page 8. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. Re-setting of the gas valve requires a combustion analyser and any adjustment should only be carried out by a competent person. (page 37)

Betacom 24c and 30c

Covers: Betacom 30c

GC 47-019-09

Entering Service Mode / Forcing Max and Min Rate (Operational Pressure Setting)

1. Remove the sensing tube from the gas valve
2. Remove one lead from the modulating gas valve coil
3. Connect a suitable pressure gauge to the pressure outlet of the gas valve
4. Turn the boiler's function switch to the 'Winter' position (Heating and Hot Water)
5. Turn the central heating temperature control to maximum setting
6. For minimum setting: adjust inner screw (clockwise to increase, anticlockwise to decrease)
7. For maximum setting: push the ball inside the modulating gas valve coil using a sharp pointed tool, and turn the nut with a 10mm spanner

From the installation and servicing manual, page 40.

Betacom 3

Covers: Betacom3 24c

GC 47-019-41

Activating diagnostics codes

1. Press and hold the button for 7 seconds until d. is shown in the display. (symbol shown in the manual, see the page)
2. Press the + or - button to set the value (access code 96 for competent person).
3. Press the i button to confirm.

From manual 0020229560_00, page 15.

Calling up the check programmes

1. Hold the + button down for more than 5 seconds until all symbols are shown in the display and P.0 is shown.
2. Press and hold the + button for five seconds until P.00 is shown.
3. Press the + or - button to select the check programme.
4. Press the i button to confirm (on is shown in the display and the programme starts).
5. Press the - and + buttons at the same time whilst running a check programme to alternate between heating water temperature and filling pressure.
6. Press the i button to return to the check programme, or the mode button to finish (OFF is shown).
7. Press and hold the + button for 3 seconds to finish the check programmes (End is shown).

From manual 0020229560_00, page 16.

CO₂ and CO from manual 0020229560_00, page 23. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page )

Betacom 4

Covers: Betacom 4 24c-A, Betacom 4 30c-A

GC 47-019-52, 47-019-53

Activating diagnostics codes (Service access)

1. Press and hold the mode button for 7 seconds. ◁ 00 is shown in the display.
2. Press the - or + button to set the value. ◁ The access code (96) is reserved for the competent person. ◁ The access code (35) is reserved for the customer service.
3. Press the mode button to confirm. ◁ d.00 is shown in the display.

From manual 0020238424_02, page 15.

Calling up the check programmes

1. Hold the standby button down for more than 5 seconds.
2. Press and hold the mode button for five seconds.
3. Press the - or + button to select the check programme.
4. Press the mode button to confirm.

From manual 0020238424_02, page 16.

CO₂ and CO from manual 0020238424_02, page 23. Check against the data badge.

The air-gas ratio valve is factory set and must not be adjusted during commissioning unless this action is recommended following contact with the manufacturer. (page 45)

Betacom2

Covers: Betacom2 24, Betacom2 28

GC 47-019-16, 47-019-17

Entering Test Modes

1. Press the on/off button to switch off the appliance.
2. While keeping the mode button pressed for more than 5 seconds, press the on/off button.
3. The screen displays the first test mode 'P1' and 'Off'.
4. Press the + or - button to choose the test mode that you wish to launch.
5. When you have finished, press the reset button to exit the test modes.

From manual 0020145065_01, page 28.

CO₂ and CO from manual 0020145065_01, page 9. Check against the data badge.

The safety valve is an integral part of the boiler and it cannot be adjusted. (page 12)

Compact (manual 0020313973_01)

Covers: Compact 24c-AS/1

GC 47-019-63

Calling up the installer level

1. Press repeatedly until the symbol flashes.
2. Use or to set the competent person access code and confirm by pressing . Competent person access code: 35 (symbol shown in the manual, see the page)

From manual 0020313973_01, page 27.

Exiting the installer level

1. Press the button as often as necessary in order to return to the basic display.

From manual 0020313973_01, page 27.

Running check programmes

1. Call up the installer level.
2. Use the − button or the + button to select the check programmes P. menu.
3. Confirm by pressing the ✓ button.
4. Use the − button or the + button to select the required check programme.
5. Press the ✓ button to confirm.
6. If you want to cancel the check programme before the intended time has elapsed, press the ← button.
7. Press the ← button to exit the check programmes.

From manual 0020313973_01, page 27.

CO₂ and CO from manual 0020313973_01, page 35. Check against the data badge.

The air gas ratio valve is factory set and must not be adjusted during commissioning unless this action is recommended following contact with the manufacturer. (page 57)

Compact (manual 8000043326_01)

Covers: Compact 24c-AS/2, Compact 28c-AS/2

GC 47-044-97, 47-044-98

Calling up the installer level

1. Press repeatedly until the symbol flashes.
2. Use or to set the competent person access code and confirm by pressing. Competent person access code: 35 (symbol shown in the manual, see the page)
3. The d. diagnostics codes menu is displayed.

From manual 8000043326_01, page 23.

Running check programmes

1. Call up the installer level.
2. Use or to select the check programmes P. menu.
3. Confirm by pressing. (symbol shown in the manual, see the page)
4. Use or to select the required check programme.
5. Press to confirm.
6. If you want to cancel the check programme before the intended time has elapsed, press. (symbol shown in the manual, see the page)
7. Press to exit the check programmes.

From manual 8000043326_01, page 23.

Exiting the installer level

1. Press the button as often as necessary in order to return to the basic display.

From manual 8000043326_01, page 23.

CO₂ and CO from manual 8000043326_01, page 27. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 54)

Compact 100 System Fanned Flue System Boiler

Covers: Compact 100 System

GC 41-047-26

Ignition Rate Setting

1. Set the mains electrical switch 'B' to 0.
2. Disconnect the sensing lead at the connection.
3. Set the mains electrical switch 'B' to 1. The electrode will continue to spark for (10 seconds approx.) to enable the ignition to be set and checked before going to lockout.
4. Check the ignition rate is set to 6.0 mbar +/-1.0 mbar, adjust if required by turning the ignition rate setting potentiometer using the adjustment tool supplied.
5. When set, switch the mains electrical switch 'B' to 0 and reconnect the sensing lead.

From manual 221897C, page 22.

CO₂ and CO from manual 221897C, page 25. Check against the data badge.

The burner pressure is factory preset and no adjustment should be required. Check that the maximum burner pressure is 14.3 mbar +/-0.2 mbar. Adjust the pressure if required by removing the screw cap and turning the maximum rate adjustment screw on the gas control valve (page 22)

Compact 75e

Covers: Compact 75e

GC 47-047-06

Ignition Rate Setting Procedure

1. Set the mains electrical switch to 0.
2. Disconnect the sensing lead at the connection.
3. Set the mains electrical switch to 1. The electrode will continue to spark for 10 seconds approx. to enable the ignition to be set and checked before going to lockout.
4. Check the ignition rate is set to 6.0 mbar +/-1.0 mbar, adjust if required by turning the ignition rate setting potentiometer using the adjustment tool supplied.
5. When set, switch the mains electrical switch to 0 and reconnect the sensing lead.
6. Set mains electrical switch to 1, depress the reset button if required.

From manual 221895A, page 23.

The burner pressure is factory preset and no adjustment should be required. (page 22)

Compact 75p

Covers: Compact 75p

GC 47-047-03

Entering Service / Setting Operating Mode

1. Open controls cover door and familiarize yourself with controls.
2. Set the summer / winter button 'J' to Winter or Summer depending on required mode.
3. Set clock/timer and remote controls as required to call for heat.

From manual 221678H, page 5.

Force Max Rate (Hot Water Burner Pressure Commissioning)

1. Fully open the largest hot water draw off tap whereby the main burner will light, flames gradually increasing to maximum.
2. Ensure water pressure is at least 0.8bar during commissioning.
3. Check burner pressure is within +/-0.35mbar of 12.6mbar.

From manual 221678H, page 20.

Force Min Rate (Gas Rate Modulation / Minimum Pressure)

1. Isolate the boiler from the electrical supply at the external isolator.
2. Remove grey wire from the modureg coil and insulate from sheet metal.
3. Switch on the electrical supply, select summer, fully open a hot water draw off tap so the main burner lights at minimum gas rate.
4. Check that burner pressure is 1.3mbar +/-0.2mbar.

From manual 221678H, page 20.

CO₂ and CO from manual 221678H, page 23. Check against the data badge.

Compact 80e

Covers: Compact 80e

GC 47-047-07

Entering Service Mode / Adjusting Burner Pressure

1. Remove the two screws securing the controls fascia.
2. Hinge the control fascia forward.
3. Remove the plastic plugs to access the hot water and central heating gas pressure potentiometers on the control board.
4. Use the burner adjusting tool supplied to adjust pressures as required.

From manual 221742D, page 22.

The burner pressure is factory preset and no adjustment should be required. (page 22)

Compact 80p

Covers: Compact 80p

GC 47-047-04

Entering Service / Firing for Maximum Rate (DHW mode)

1. Connect electrical supply, appliance defaults to winter.
2. Select summer mode using summer/winter button.
3. Fully open the largest hot water draw off tap whereby the main burner will light, flames gradually increasing to maximum.

From manual 221679H.11.00, page 20.

Forcing Minimum Rate

1. Isolate the boiler from the electrical supply at the external isolator.
2. Remove grey wire from the modureg coil and insulate from sheet metal.
3. Switch on electrical supply, select summer mode.
4. Fully open a hot water draw off tap and the main burner will light at the minimum gas rate.

From manual 221679H.11.00, page 20.

CO₂ and CO from manual 221679H.11.00, page 23. Check against the data badge.

The burner pressure is factory preset and no adjustment should be required. Check the burner pressure is within +/-0.35mbar (+/-0.14in wg). of 13.0mbar (5.22in wg). If this is incorrect, the burner pressure may be adjusted to the correct setting by turning the hot water gas pressure adjuster (potentiometer), located on the control board (page )

Easicom

Covers: Easicom 24, Easicom 28

GC 47-019-18, 47-019-19

Entering Test Modes / Forcing Max and Min Rate

1. Press the on/off button to switch off the appliance.
2. While keeping the mode button pressed for more than 5 seconds, press the on/off button. The screen displays the first test mode "P1" and "Off".
3. Press the ⊕ or ⊖ button to choose the test mode that you wish to launch.
4. Test mode "P1": Press the mode button to display the burner forcing setting. The screen displays "P1" and "Lo". Press the ⊕ or ⊖ button to modify the value of the setting from "Lo" (0%) to "Hi" (100%).
5. Press the mode button for 1 second to exit the submenu or for more than 7 seconds to access the configuration menu.
6. Test mode "P.02" to "P.07": Press the mode button to launch the test mode. The screen displays "PX" and "On". The test mode will automatically stop after 15 minutes.
7. When you have finished, press the reset button to exit the test modes.

From manual 0020140413_01, page 28.

CO₂ and CO from manual 0020140413_01, page 9. Check against the data badge.

The combustion for this appliance has been checked, adjusted and preset at the factory for operation on natural gas (G20) as defined on the appliance data label. No measurement of the combustion is necessary. (page 22)

Easicom 2

Covers: Easicom 2 24c, Easicom 2 28c

GC 47-019-22, 47-019-23

Calling up the check programmes

1. Hold the ⑯ button down for more than 5 seconds.
2. Press and hold the mode button for five seconds.
3. Press the - or + button to select the check programme.
4. Press the mode button to confirm.

From manual 0020199151_02, page 15.

Activating diagnostics codes

1. Press and hold the mode button for 7 seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.

From manual 0020199151_02, page 15.

CO₂ and CO from manual 0020199151_02, page 19. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 44)

EASICOM 3

Covers: Easicom 3 24c-A, Easicom 3 28c-A

GC 47-019-50, 47-019-51

Calling up the check programmes

1. Press and hold the mode button for seven seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.
4. Hold the standby button down for more than 5 seconds.
5. Press and hold the mode button for five seconds.
6. Press the - or + button to select the check programme.
7. Press the mode button to confirm.
8. Press the - and + buttons at the same time whilst running a check programme.
9. Press the mode button to return to the check programme.
10. Press the mode button to finish the check programme.
11. Press and hold the mode button for 3 seconds to finish the check programmes.

From manual 0020239562_05, page 24.

CO₂ and CO from manual 0020239562_05, page 28. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 52)

ENERGY (manual 0020177748_02)

Covers: Energy 12r, Energy 15r, Energy 18r, Energy 25r, Energy 30r

GC 41-019-21, 41-019-22, 41-019-23, 41-019-24, 41-019-25

Activating check programmes

1. Press and hold the button for more than five seconds until is shown in the display. (symbol shown in the manual, see the page)
2. Press and hold the button for five seconds until is shown in the display. (symbol shown in the manual, see the page)
3. Press the button to select the check programme. (symbol shown in the manual, see the page)
4. Press the button to confirm. The selected check programme is started. (symbol shown in the manual, see the page)
5. Press the button to finish the check programme. (symbol shown in the manual, see the page)
6. Press and hold the button for three seconds to finish the check programmes. (symbol shown in the manual, see the page)

From manual 0020177748_02, page 15.

Activating the check programme for the maximum output function

1. Press and hold the mode and + buttons simultaneously for more than five seconds.

From manual 0020177748_02, page 16.

CO₂ and CO from manual 0020177748_02, page 19. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page )

ENERGY (manual 0020200964_04)

Covers: Energy 12s, Energy 15s, Energy 18s, Energy 25s, Energy 30s

GC 41-019-16, 41-019-17, 41-019-18, 41-019-19, 41-019-20

Entering Service Mode / Diagnostics

1. Press and hold the mode button for 7 seconds.
2. Hold the + button down for more than 7 seconds.
3. Hold the standby button down for more than 5 seconds.

From manual 0020200964_04, page 15.

Forcing Maximum and Minimum Rate (Check Programmes)

1. Press and hold the mode button for 7 seconds.
2. Hold the + button down for more than 7 seconds.
3. Hold the standby button down for more than 5 seconds.

From manual 0020200964_04, page 15.

CO₂ and CO from manual 0020200964_04, page 23. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 44)

ENERGY ..c

Covers: Energy 25c, Energy 30c, Energy 35c

GC 47-019-24, 47-019-25, 47-019-26

Activating diagnostics codes / Service access

1. Press and hold the mode button for 7 seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.

From manual 0020177746_00, page 16.

Calling up check programmes

1. Hold the power button down for more than 5 seconds. All symbols are shown in the display. + - is shown in the display.
2. Press and hold the mode button for five seconds. P.01 is shown in the display.
3. Press the minus or plus button to select the check programme.
4. Press the mode button to confirm. on is shown in the display and the programme starts.
5. Press the minus and plus buttons at the same time whilst running a check programme. The heating water temperature and the filling pressure for the heating installation are shown alternately in the display.
6. Press the mode button to return to the check programme. The display shows the check programme.
7. Press the mode button to finish the check programme. OFF is shown in the display.
8. Press and hold the mode button for 3 seconds to finish the check programmes. End is shown in the display. The display switches to the basic display.

From manual 0020177746_00, page 17.

CO₂ and CO from manual 0020177746_00, page 20. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 43)

Energy 2

Covers: Energy2 30c

GC 47-019-38

Entering Service Mode (Check Programmes)

1. Hold the (power) button down for more than 5 seconds.
2. Press and hold the (mode) button for five seconds.
3. Press the (-) or (+) button to select the check programme.
4. Press the (mode) button to confirm.

From manual 0020283671_04, page 22.

CO₂ and CO from manual 0020283671_04, page 26. Check against the data badge.

The air gas ratio valve is factory set and must not be adjusted during commissioning unless this action is recommended following contact with the manufacturer. (page 50)

Energy 35 Store-A

Covers: Energy 35 Store

GC 47-019-37

Accessing Service Mode (Check Programmes)

1. Press the on/off button to switch off the unit.
2. Press the menu button and the on/off button for 5 seconds.
3. Select the desired programme (e.g., P.01) using the plus or minus buttons.
4. Press menu button to enter, then adjust power or start.

From manual 0020201109_02, page 17.

CO₂ and CO from manual 0020201109_02, page 20. Check against the data badge.

Any interference with the gas valve's adjusting screw Offset (zero point setting) is not permitted (the screw is sealed with leads after setting ex works). (page 18)

Energy7 (manual 0020300875_01)

Covers: Energy7 18r - A, Energy7 25r - A, Energy7 30r - A

GC 47-019-60, 47-019-61, 47-019-62

Calling up the check programmes

1. Press and hold the mode button for seven seconds. ◁ d.0 is shown in the display.
2. Press the - or + button to set the value. ◁ The access code (96) is reserved for the competent person. ◁ The access code (35) is reserved for the customer service.
3. Press the mode button to confirm. ◁ d.00 is shown in the display.
4. Hold the standby/on-off button down for more than 5 seconds. ◁ All symbols are shown in the display. ◁ symbol is shown in the display.
5. Press and hold the mode button for five seconds. ◁ P.0 is shown in the display.
6. Press the - or + button to select the check programme.
7. Press the mode button to confirm. ◁ on is shown in the display and the programme starts.

From manual 0020300875_01, page 28.

Activating diagnostics codes

1. Press and hold the mode button for seven seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.
4. Hold the standby button down for more than 5 seconds.
5. Press and hold the mode button for five seconds.
6. Press the - or + button to select the check programme.
7. Press the mode button to confirm.

From manual 0020300875_01, page 28.

CO₂ and CO from manual 0020300875_01, page 29. Check against the data badge.

Never modify the factory setting of the gas pressure regulator of the gas valve assembly. (page 32)

Energy7 (manual 0020300876_01)

Covers: Energy7 12s-A, Energy7 15s-A, Energy7 18s-A, Energy7 25s-A, Energy7 30s-A

GC 41-019-53, 41-019-54, 41-019-55, 41-019-56, 41-019-57

Activating diagnostics codes (Service access)

1. Hold the standby/on button down for more than 5 seconds.
2. Press and hold the mode button for five seconds.
3. Press the - or + button to select the check programme.
4. Press the mode button to confirm.
5. Press the - and + buttons at the same time whilst running a check programme.
6. Press the mode button to return to the check programme.
7. Press the mode button to finish the check programme.
8. Press and hold the mode button for 3 seconds to finish the check programmes.

From manual 0020300876_01, page 27.

Using check programmes (Force max/min rate / test modes)

1. Hold the power button down for more than 5 seconds. All symbols are shown in the display. is shown in the display.
2. Press and hold the mode button for five seconds. PO1 is shown in the display.
3. Press the - or + button to select the check programme.
4. Press the mode button to confirm. on is shown in the display and the programme starts.
5. Press the - and + buttons at the same time whilst running a check programme. The heating water temperature and the filling pressure for the heating installation are shown alternately in the display.
6. Press the mode button to return to the check programme. The display shows the check programme.
7. Press the mode button to finish the check programme. OFF is shown in the display.
8. Press and hold the mode button for 3 seconds to finish the check programmes. End is shown in the display. The display switches to the basic display.

From manual 0020300876_01, page 27.

CO₂ and CO from manual 0020300876_01, page 28. Check against the data badge.

The product's combustion has been factory tested and is preset for operation with the gas group indicated on the data plate. The CO₂ adjusting screw must be sealed. Never modify the factory setting of the gas pressure regulator of the gas valve assembly. (page 30)

Energy7 (manual 0020300877_02)

Covers: Energy7 12r-A, Energy7 15r-A

GC 41-019-58, 41-019-59

Activating the check programme for the chimney sweep function

1. Press and hold the mode and + buttons simultaneously for more than five seconds.

From manual 0020300877_02, page 25.

Activating check programmes

1. Press and hold the button for more than five seconds. ( is shown in the display) (symbol shown in the manual, see the page)
2. Press and hold the button for five seconds. ( is shown in the display) (symbol shown in the manual, see the page)
3. Press the button to select the check programme. (symbol shown in the manual, see the page)
4. Press the button to confirm. (The selected check programme is started) (symbol shown in the manual, see the page)
5. Press the button to finish the check programme. (symbol shown in the manual, see the page)
6. Press and hold the button for three seconds to finish the check programmes. (symbol shown in the manual, see the page)

From manual 0020300877_02, page 25.

CO₂ and CO from manual 0020300877_02, page 29. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page )

Energysaver 40P, 50P, 60P High Efficiency Boiler

Covers: EnergySaver 60P

GC 41-319-74

Force Max & Min Rate

1. Set the High/Low switch to 'high' for maximum rate.
2. Set the High/Low switch to 'low' for minimum rate and to check low burner pressure.

From manual 220685E, page 20.

Energysaver 70 High Efficiency Boiler

Covers: EnergySaver 70

GC 41-319-92

Entering Service and Adjusting Gas Pressure

1. Turn off the mains electrical supply to the boiler and ensure control thermostat is turned to 'O'.
2. Loosen the burner pressure test point screw and fit a suitable pressure gauge.
3. Turn on the supply at the gas service cock.
4. Turn the electrical supply on to the boiler and check that all remote controls are calling for heat.
5. Turn the left hand switch to 'High' flame.
6. Turn the control thermostat knob to any position between 'MIN' and 'MAX'.
7. Check the burner pressure at least 10 minutes after the burner has lit.
8. The brass nut controls the main (high) burner pressure. The centre, plastic posidrive screw controls the 'Low' burner pressure.
9. The centre, plastic posidrive screw must be held in position whilst adjusting the main (high) burner pressure, brass nut.
10. After adjustment the low pressure must be checked, by turning the 'high/low' to 'low' setting.

From manual 221837B.11.00, page 22.

The boiler is range rated and is factory preset to maximum, but may be adjusted to suit individual system requirements (page 6)

Energysaver 80P

Covers: EnergySaver 80P

GC 41-319-85

Entering Service / High-Low Operation

1. Turn the electrical supply on to the boiler and check that all remote controls are calling for heat.
2. Turn the left hand High/Low switch to 'High' flame or 'Low' flame as required.
3. Turn the control thermostat knob clockwise to any position between 'MIN' and 'MAX'.

From manual 220686E, page 20.

Essential 24c 28c

Covers: Essential 24c, Essential 28c

GC 47-019-27, 47-019-28

Activating diagnostics codes

1. Press and hold the mode button for 7 seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.

From manual 0020206373_04, page 15.

Calling up the check programmes

1. Hold the button down for more than 5 seconds.
2. Press and hold the mode button for five seconds.
3. Press the - or + button to select the check programme.
4. Press the mode button to confirm.

From manual 0020206373_04, page 15.

CO₂ and CO from manual 0020206373_04, page 19, 22. Check against the data badge.

The air gas ratio valve is factory set and must not be adjusted during commissioning unless this action is recommended following contact withemus the manufacturer. (page 44)

Flexicom

Covers: Flexicom 30hx, Flexicom 35hx

GC 41-315-67, 41-315-68

Force Maximum Rate (Hi)

1. Press the reset button on the controls fascia, release and immediately press and hold in the “+” button.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the mode button when “Hi” is selected will force the boiler to maximum rate, the display will flash between “Hi” and the default display.

From manual 0020057279, page 39.

Force Minimum Rate (Lo)

1. Press and release the “reset” button on the controls fascia, then immediately press and hold in either of the “+” buttons.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the “+” or “-” buttons will toggle between “Hi” and “Lo”.
4. Press the mode button when “Lo” is selected, this will force the boiler to minimum rate and the display will flash “Lo”.

From manual 0020057279, page 42.

CO₂ and CO from manual 0020057279, page 41. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. Do not adjust the Gas/Air ratio valve. (page 38)

Flexicom 12hx

Covers: Flexicom 12hx, Flexicom 15hx, Flexicom 18hx

GC 41-315-28, 41-315-29, 41-315-42

Force Maximum Rate (Hi)

1. Press the reset button on the controls fascia, release and immediately press and hold in the “+” button.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the mode button when “Hi” is selected will force the boiler to maximum rate, the display will flash between “Hi” and the default display.

From manual 2000225262-04, page 36.

Force Minimum Rate (Lo)

1. Press the reset button on the controls fascia, release and immediately press and hold in the “+” button.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the “+” or “-” buttons will cycle between “Hi” and “Lo”.
4. Pressing the mode button when “Lo” is selected will force the boiler to minimum rate, the display will flash between “Lo” and the default display.

From manual 2000225262-04, page 37.

Exit Service / Check Sequences

1. Press the “mode” and “+” buttons simultaneously, this will reset the boiler to the default display.

From manual 2000225262-04, page 36.

CO₂ and CO from manual 2000225262-04, page 36. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. (page 35)

Flexicom 18sx & 30sx

Covers: Flexicom 30sx

GC 41-047-76

Force Maximum Rate (Hi)

1. Press the reset button on the controls fascia, release and immediately press and hold in the '+' button.
2. After approximately 5 seconds 'Hi' will be displayed.
3. Pressing the mode button when 'Hi' is selected will force the boiler to maximum rate, the display will flash between 'Hi' and the default display.

From manual 0020051443-07, page 41.

Force Minimum Rate (Lo)

1. Press and release the reset button on the controls fascia, then immediately press and hold in either of the '+' buttons.
2. After approximately 5 seconds 'Hi' will be displayed.
3. Pressing the '+' or '-' buttons will toggle between 'Hi' and 'Lo'.
4. Press the mode button when 'Lo' is selected, this will force the boiler to minimum rate and the display will flash 'Lo'.

From manual 0020051443-07, page 44.

Flexicom 18sx (System)

Covers: Flexicom 18sx

GC 41-315-72

Enter Service Mode (Force Max/Min)

1. Press the reset button on the controls fascia.
2. Release and immediately press and hold the + button.
3. After approximately 5 seconds 'Hi' will be displayed. Press the mode button to force max rate.
4. Pressing the + or - buttons will cycle to 'Lo'. Press the mode button to force minimum rate.

From manual 2000225264-04, page 39.

Exit Service Mode

1. To exit the check sequences press the mode and + buttons simultaneously.

From manual 2000225264-04, page 39.

CO₂ and CO from manual 2000225264-04, page 8. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. In the unlikely event that the gas valve needs adjusting, refer to section 12.7. Resetting of the gas valve requires a combustion analyser and any adjustment should only be carried out by a competent person. (page 38)

Flexicom 24cx / 30cx

Covers: Flexicom 24cx

GC 47-047-33

Force maximum and minimum rate (Service Mode / Combustion Check)

1. Press the reset button on the controls fascia, release and immediately press and hold in the '+' button.
2. After approximately 5 seconds 'Hi' will be displayed.
3. Pressing the mode button when 'Hi' is selected will force the boiler to maximum rate, the display will flash between 'Hi' and the default display.
4. To force minimum rate, press and hold the '+' button from reset until 'Hi' is displayed, then use the '+' or '-' buttons to cycle between 'Hi' and 'Lo'.
5. Pressing the mode button when 'Lo' is selected will force the boiler to minimum rate, the display will flash between 'Lo' and the default display.
6. To exit the check sequences press the 'mode' and '+' buttons simultaneously, this will reset the boiler to the default display.

From manual 2000225263-02, page 40.

CO₂ and CO from manual 2000225263-02, page 8. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. Re-setting ofotan the gas valve requires a combustion analyser and any adjustment should only be carried out by a competent person. (page 37)

Flexicom cx Condensing Boilers (24cx, 30cx, 35cx)

Covers: Flexicom 35cx

GC 47-047-35

Entering Service Mode / Forcing Maximum Rate (Hi)

1. Press the reset button on the controls fascia, release and immediately press and hold in the '+' button.
2. After approximately 5 seconds 'Hi' will be displayed.
3. Pressing the mode button when 'Hi' is selected will force the boiler to maximum rate, the display will flash between 'Hi' and the default display.

From manual 0020107232_00, page 28.

Forcing Minimum Rate (Lo)

1. Press and release the reset button on the controls fascia, then immediately press and hold in either of the '+' buttons.
2. After approximately 5 seconds 'Hi' will be displayed.
3. Pressing the '+' or '-' buttons will toggle between 'Hi' and 'Lo'.
4. Press the mode button when 'Lo' is selected, this will force the boiler to minimum rate and the display will flash 'Lo'.

From manual 0020107232_00, page 29.

Exiting Forced Rate Function

1. Press the 'mode' and '+' buttons simultaneously, this will reset the boiler to the default display.

From manual 0020107232_00, page 29.

CO₂ and CO from manual 0020107232_00, page 28. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. Do not adjust the Gas/Air ratio valve. (page 25)

High Efficiency Condensing Boilers

Covers: 12hxi, 15hxi, 18hxi, 24hxi, 30hxi

GC 41-047-63, 41-047-64, 41-047-69, 41-047-73, 41-047-74

Entering Service Mode

1. Unclip the controls fascia to reveal the service potentiometer on the rear of the user interface.
2. Ensure external controls are calling for heat.
3. Rotate the service potentiometer to the mid-point or 3 o'clock position.
4. Digital display will show '12' flashing to indicate minimum rate.
5. Rotate fully clockwise for maximum fan speed.

From manual 0020008153-05, page 28.

Exiting Service Mode

1. Rotate the service potentiometer fully anti-clockwise until the display indicates the water temperature.

From manual 0020008153-05, page 28.

CO₂ and CO from manual 0020008153-05, page 11, 30. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. (page )

Jaguar 23 / 28 Wall Hung Combination Boiler

Covers: Jaguar 28

GC 47-047-17

Entering Service Mode and Setting Central Heating Output

1. Push and hold the Bar/Mode button for at least 8 sec. The display will switch to service mode, the symbol n- will be displayed.
2. Set the desired output value from n1 to n9 by means of buttons (7) and (8).
3. Press Bar/Mode button to save and return to main menu.

From manual 2000225078, page 29.

To adjust the minimum and maximum settings, unlock the PCB box and swing it down, connect a manometer to the burner pressure test point (b) on the gas valve, remove the modulator plastic cap protecting the adjusting screw on the top of modulating coil. Adjust Pmax using nut (1) on the top of modulating coil, and Pmin using red plastic screw (2) on the top of modulating coil. (page 43)

MicraCom

Covers: MicraCom 24c-AS/2, MicraCom 28c-AS/2

GC 47-044-99, 47-694-01

Calling up the installer level

1. Press repeatedly until the symbol flashes.
2. Use or to set the competent person access code and confirm by pressing (Competent person access code: 35).
3. The d. diagnostics codes menu is displayed.

From manual 8000043325_01, page 23.

Using diagnostics codes

1. Call up the installer level.
2. Use or to select the diagnostics codes d. menu.
3. Confirm by pressing (00 is displayed).
4. Use or to select the diagnostics code whose value you want to change.
5. Confirm by pressing. (symbol shown in the manual, see the page)
6. Use or to select the required value for the diagnostics code.
7. Press to confirm this setting.
8. Press to exit the diagnostics codes.

From manual 8000043325_01, page 23.

Running check programmes

1. Call up the installer level.
2. Use or to select the check programmes P. menu.
3. Confirm by pressing. (symbol shown in the manual, see the page)
4. Use or to select the required check programme.
5. Press to confirm to start the check programme.
6. To cancel before time elapses, press (oF is displayed for 10 seconds).
7. Press to exit the check programmes.

From manual 8000043325_01, page 23.

Exiting the installer level

1. Press the button as often as necessary in order to return to the basic display.

From manual 8000043325_01, page 23.

CO₂ and CO from manual 8000043325_01, page 27. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 54)

Micron 70 FF

Covers: Micron 70 FF

GC 41-047-50

Service Mode / Testing

1. Turn temperature control to '0' (Off) position.
2. Swing open control box.
3. Turn gas service cock 'On'.
4. Turn on electrical supply.
5. Turn temperature control clockwise to 'Max' to initiate lighting sequence.
6. Use a gas analyser (FGA) at the sampling point on top of the inner casing to test flue gases.

From manual 2000225229C, page 17.

The multifunctional control and fan operate on mains voltage, terminals will become live. Do not adjust any other setting screws. (page 17)

SPACE SAVER 60 / 70 Fanned Flue Sealed System Boiler

Covers: Spacesaver Complheat 60

GC 41-319-45

Isolating Boiler Before Service

1. Isolate the boiler from the electrical supply.
2. Turn the gas supply off at the gas service cock (indicator slot to be vertical).

From manual 220694C.01.98, page 24.

The pilot rate is preset and MUST NOT be adjusted. (page 21)

An automatic bypass valve is fitted in the boiler pipework, it is preset and MUST NOT be adjusted. (page 5)

SUSTAIN ..c

Covers: SUSTAIN 30c, SUSTAIN 35c

GC 47-019-33, 47-019-34

Service Mode (Combustion Check)

1. Hold the '+' button down for more than 5 seconds to show P.01
2. Press and hold the '+' button for five seconds.
3. Use '+' or '-' to select check programmes.
4. Press 'Mode' to confirm.
5. Use diagnostics code d.00 to set max heating output.

From manual 0020200954_00, page 17.

CO₂ and CO from manual 0020200954_00, page 20. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 43)

SUSTAIN ..s

Covers: Sustain 12s, Sustain 15s, Sustain 18s

GC 41-019-36, 41-019-37, 41-019-38

Activating diagnostics codes (Service Mode)

1. Press and hold the mode button for 7 seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.

From manual 0020200967_00, page 15.

Using check programmes (Forcing max & min rate / special functions)

1. Hold the standby button down for more than 5 seconds.
2. Press and hold the mode button for five seconds.
3. Press the minus or plus button to select the check programme.
4. Press the mode button to confirm.

From manual 0020200967_00, page 16.

CO₂ and CO from manual 0020200967_00, page 20. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 43)

Ultimate 2

Covers: Ultimate 2 25s

GC 47-019-42

Activating check programmes (Service/Test functions)

1. Hold the power button down for more than 5 seconds.
2. Press and hold the mode button for five seconds.
3. Press the - or + button to select the check programme.
4. Press the mode button to confirm.
5. Press the - and + buttons at the same time whilst running a check programme.
6. Press the mode button to return to the check programme.
7. Press the mode button to finish the check programme.
8. Press and hold the mode button for 3 seconds to finish the check programmes.

From manual 0020206377_01, page 15.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page )

Ultimate 3 25r

Covers: Ultimate 3 25r-A

GC 41-019-52

Activating diagnostics codes (Service access)

1. Press and hold the button for seven seconds until is shown in the display. (symbol shown in the manual, see the page)
2. Press the buttons to set the access code (96 for competent person).
3. Press the button to confirm. (symbol shown in the manual, see the page)

From manual 0020239568_01, page 15.

Activating check programmes (Force max/min rate / special functions)

1. Press and hold the button for more than five seconds. (symbol shown in the manual, see the page)
2. Press and hold the button for five seconds. (symbol shown in the manual, see the page)
3. Press the button to select the check programme (e.g., P.01 for adjustable heat input between Pmin and Pmax). (symbol shown in the manual, see the page)
4. Press the button to confirm. (symbol shown in the manual, see the page)
5. Press the button to finish the check programme. (symbol shown in the manual, see the page)

From manual 0020239568_01, page 16.

CO₂ and CO from manual 0020239568_01, page 21. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page )

Ultimate 3 25s -A (H-GB)

Covers: Ultimate 3 25s-A

GC 41-019-51

Activating diagnostics codes (Service Mode)

1. Press and hold the mode button for seven seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.
4. Hold the standby button down for more than 5 seconds.
5. Press and hold the mode button for five seconds.
6. Press the - or + button to select the check programme.
7. Press the mode button to confirm.

From manual 0020239564_06, page 23.

Calling up the check programmes

1. Press and hold the mode button for seven seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.
4. Hold the standby button down for more than 5 seconds.
5. Press and hold the mode button for five seconds.
6. Press the - or + button to select the check programme.
7. Press the mode button to confirm.

From manual 0020239564_06, page 23.

CO₂ and CO from manual 0020239564_06, page 2. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 50)

Ultimate 3 30c-A / 35c-A

Covers: Ultimate 3 30c-A, Ultimate 3 35c-A

GC 47-019-55, 47-019-57

Calling up check programmes

1. Press and hold the mode button for seven seconds.
2. Press the - or + button to set the value.
3. Press the mode button to confirm.
4. Press and hold the standby/ON-OFF button down for more than 5 seconds.
5. Press and hold the mode button for five seconds.
6. Press the - or + button to select the check programme.
7. Press the mode button to confirm.
8. Press the - and + buttons at the same time whilst running a check programme.
9. Press the mode button to return to the check programme.
10. Press the mode button to finish the check programme.
11. Press and hold the mode button for 3 seconds to finish the check programmes.

From manual 0020239566_06, page 24.

CO₂ and CO from manual 0020239566_06, page 28. Check against the data badge.

THE AIR GAS RATIO VALVE IS FACTORY SET AND MUST NOT BE ADJUSTED DURING COMMISSIONING UNLESS THIS ACTION IS RECOMMENDED FOLLOWING CONTACT WITH THE MANUFACTURER. (page 53)

Ultracom 2 cxi

Covers: Ultracom 2 30cxi, Ultracom 2 35cxi

GC 47-019-11, 47-019-12

Enter Test Modes

1. Press the on/off button to switch off the appliance.
2. While keeping the mode button pressed for more than 5 seconds, press the on/off button. The screen displays the first test mode 'P01' and 'Off'.
3. Press the + or - button under the symbol to choose the test mode that you wish to launch.
4. For test mode 'P.01': press the mode button to display the burner forcing setting. The screen displays 'P.01' and '0'. Then press the + or - button under the symbol to modify the value of the setting from '0' (0%) to '100' (100%). Press the mode button for 1 second to exit the submenu or for more than 7 seconds to access the configuration menu.
5. For test modes 'P.02' to 'P.07': press the mode button to launch the test mode. The screen displays 'P.0X' and 'On'. The test mode will automatically stop after 15 minutes.
6. When you have finished, press the reset button or the On/Off button to exit the test modes.

From manual 0020085231_02, page 33.

CO₂ and CO from manual 0020085231_02, page 10. Check against the data badge.

The combustion for this appliance has been checked, adjusted and preset at the factory. No measurement of the combustion is necessary. Should the appliance require to be converted to LPG gas ensure you follow the gas conversion section before lighting the boiler. (page 28)

Ultracom 24cx and 30cx

Covers: Ultracom 24cx, Ultracom 30cx

GC 47-019-06, 47-019-07

Force Boiler to Maximum Rate (Hi)

1. Press the "reset" button on the controls fascia, release and immediately press and hold in the "+" button.
2. After approximately 5 seconds "Hi" will be displayed.
3. Pressing the mode button when "Hi" is selected will force the boiler to maximum rate, the display will flash between "Hi" and the "default display" to indicate the boiler has been forced to maximum.

From manual 0020040955-02, page 40.

Force Boiler to Minimum Rate (Lo)

1. Press the "reset" button on the controls fascia, release and immediately press and hold in the "+" button.
2. After approximately 5 seconds "Hi" will be displayed.
3. Pressing the "+" or "-" buttons will cycle between "Hi" and "Lo".
4. Pressing the mode button when "Lo" is selected will force the boiler to minimum rate, the display will flash between "Lo" and the "default display" to indicate the boiler has been forced to minimum.

From manual 0020040955-02, page 40.

Exit Combustion Check / Force Sequences

1. Press the "mode" and "+" buttons simultaneously, this will reset the boiler to the default display.

From manual 0020040955-02, page 40.

Enter Diagnostic Menu (Level 1 Installer Access)

1. Press and hold the 'MODE' and '+' button for 5 seconds. The display will change to '0'.
2. Use the '+' or '-' buttons to scroll to 96 (installer level access password).
3. Press and hold 'MODE' for 5 seconds to confirm.

From manual 0020040955-02, page 50.

CO₂ and CO from manual 0020040955-02, page 40, 44. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. (page )

Ultracom 24cxi, 30cxi & 38cxi High Efficiency Condensing Combination Boilers

Covers: Ultracom 2 CXI, Ultracom 30cxi, Ultracom 38cxi

GC 47-019-01, 47-019-02, 47-019-03

Force Boiler to Maximum Rate (Hi)

1. Press the reset button on the controls fascia, release and immediately press and hold in the “+” button.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the mode button when “Hi” is selected will force the boiler to maximum rate, the display will flash between “Hi” and the default display.

From manual 0020020820-02, page 40.

Force Boiler to Minimum Rate (Lo)

1. Press the reset button on the controls fascia, release and immediately press and hold in the “+” button.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the “+” or “-” buttons will cycle between “Hi” and “Lo”.
4. Pressing the mode button when “Lo” is selected will force the boiler to minimum rate, the display will flash between “Lo” and the default display.

From manual 0020020820-02, page 40.

Exit Force Rate / Combustion Check Mode

1. Press the “mode” and “+” buttons simultaneously to reset the boiler to the default display.

From manual 0020020820-02, page 40.

CO₂ and CO from manual 0020020820-02, page 7, 40, 44. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. (page )

Ultracom hxi Condensing Boilers

Covers: Ultracom 12hxi, Ultracom 15hxi, Ultracom 18hxi, Ultracom 24hxi, Ultracom 30hxi, Ultracom 38hxi

GC 41-019-01, 41-019-02, 41-019-03, 41-019-04, 41-019-05, 41-019-06

Force Maximum Rate (Hi)

1. Press the reset button on the controls fascia, release and immediately press and hold in the “+” button.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the mode button when “Hi” is selected will force the boiler to maximum rate, the display will flash between “Hi” and the default display.

From manual 0020107233_00, page 24.

Force Minimum Rate (Lo)

1. Press and release the “reset” button on the controls fascia, then immediately press and hold in either of the “+” buttons.
2. After approximately 5 seconds “Hi” will be displayed.
3. Pressing the “+” or “-” buttons will toggle between “Hi” and “Lo”.
4. Press the mode button when “Lo” is selected to force the boiler to minimum rate.

From manual 0020107233_00, page 28.

Exit Service / Forced Rate Mode

1. Press the “mode” and “+” buttons simultaneously to reset the boiler to the default display.

From manual 0020107233_00, page 24.

CO₂ and CO from manual 0020107233_00, page 26, 27. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. Do not adjust the Gas/Air ratio valve. (page 23)

Ultracom2 35 Store

Covers: Ultracom 35 Store

GC 47-019-15

Test Modes Activation

1. Press the on/off button to switch off the appliance.
2. While keeping the menu button pressed for more than 5 seconds, press the on/off button.
3. The screen displays the first test mode 'P01' and 'Off'.
4. Press button + or - of mode to choose the test mode that you wish to launch.
5. For test mode 'P.01': press the menu button to display the burner forcing setting. The screen displays 'P.01' and '0'.
6. Press button + or - of mode to modify the value of the setting from '0' (0%) to '100' (100%).
7. Press the menu button for 1 second to exit the submenu or for more than 7 seconds to access the configuration menu.
8. For test modes 'P.02' to 'P.07': press the menu button to launch the test mode. The screen displays 'P.0X' and 'On'.
9. When you have finished, press the reset button or the On/Off button to exit the test modes.

From manual 0020112185_PROTO_13, page 37.

CO₂ and CO from manual 0020112185_PROTO_13, page 11. Check against the data badge.

The combustion for this appliance has been checked, adjusted and preset at the factory. The user shall not interfere with or adjust sealed components. (page 31)

Ultracom2 sxi

Covers: Ultracom 2 12sxi, Ultracom 2 18sxi, Ultracom 2 30sxi

GC 41-019-12, 41-019-13, 41-019-14

Accessing Test Modes

1. Press the on/off button to switch off the appliance.
2. While keeping the mode button pressed for more than 5 seconds, press the on/off button. The screen displays the first test mode "P01" and "Off".
3. Press + or - under the flame symbol to choose the test mode that you wish to launch.
4. For test mode P.01: press mode to display the burner forcing setting (screen shows "P.01" and "0"), then press + or - under the IIII symbol to modify the value of the setting from "0" (0%) to "100" (100%).
5. Press mode for 1 second to exit the submenu or for more than 7 seconds to access the configuration menu.
6. For test modes P.02 to P.07: press mode to launch the test mode (screen displays "P.0X" and "On"). The test mode will automatically stop after 15 minutes.
7. When finished, press the reset button or the On/Off button to exit the test modes.

From manual 0020092785_02, page 31.

CO₂ and CO from manual 0020092785_02, page 10. Check against the data badge.

The combustion for this appliance has been checked, adjusted and preset at the factory for operation on natural gas (G20). No measurement of the combustion is necessary. Should the appliance require to be converted to LPG gas ensure you follow the gas conversion section before lighting the boiler. (page 26)

XTRAFAST 96 / 120 Fanned Flue Combination Boiler

Covers: Xtrafast 120

GC 41-313-29, 47-920-18

Entering Service Mode

1. Press the display light button and keep pressed for 5 seconds.
2. The boiler is now in 'Service Mode', allowing certain adjustments to be made and diagnostic fault codes to be displayed.

From manual 115922 B 05/99, page 17.

Setting Heating Output in Service Mode

1. Remove the blanking plug from the front of the control panel to gain access to the heating adjusting screw.
2. Adjust the heating output by turning the screw clockwise to increase, anti-clockwise to decrease.
3. Refit blanking plug.

From manual 115922 B 05/99, page 17.

All boilers are tested and factory set during manufacture. Should it be necessary to reset a gas valve, for example, after replacement, proceed as follows: Minimum setting: Remove one electrical connector from the modulating gas valve coil. Connect a suitable pressure gauge. Turn the OFF/Summer/Winter switch to the 'Summer' position. Turn the domestic hot water temperature adjuster to maximum setting. Remove the protective cover from the gas valve adjuster. Turn nut 'A'. CLOCKWISE: To increase the pressure. ANTICLOCKWISE: To decrease the pressure. Maximum setting: Reconnect the electrical connector removed from the modulating gas valve coil. Remove the protective cover from the gas valve adjuster. Turn nut 'B'. CLOCKWISE: To increase the pressure. ANTICLOCKWISE: To decrease the pressure. After adjustment, refit the cover to the gas valve adjuster. Refer to technical data for maximum pressive setting. (page )

Xtramax HE

Covers: Xtramax HE

GC 47-047-15, 47-047-29

Enter Service / Commissioning

1. Rotate service potentiometer (rear of user interface) to mid point or 3 o'clock position.
2. Ensure boiler is firing.
3. Fan speed will reduce to minimum and '12' will flash on digital display.
4. Adjust CO2 via offset screw (for min) and throttle (for max) as specified in Table 3.

From manual 02******A.05.05, page 23.

CO₂ and CO from manual 02******A.05.05, page 23. Check against the data badge.

The gas valve is factory set for natural gas (G20) and should need no adjustment. Under no circumstances must the User interfere with or adjust sealed parts. (page 25)