Alpha 240XP, 240XE User's Instructions
User's
Instructions
Alpha 240XP and 240XE
Wall Mounted, Fan Assisted, Room Sealed, Gas Fired
Combination Boilers
For Technical help or for Service call ...
ALPHA HELPLINE
Tel: 0870 3001964
Nepicar House, London Road,
Wrotham Heath, Sevenoaks,
Kent TN15 7RS
Service Listed
Alpha 240XP G.C. No. 47 532 10
0051
Leave these instructions with the User
Alpha 240XE G.C. No. 47 532 11
For use with Natural Gas only
1 DESCRIPTION
The Alpha 'X' Range of boilers are wall mounted, fan assisted room-sealed combination boilers, providing both central heating
and domestic hot water at mains pressure.
The Alpha 240XP and 240XE boilers are suitable for central heating loads of between 9.3 and 23.3 kW (31 700 and 79 500 Btu/h).
The boilers will provide central heating (as required) during the 'on' times set on your clock (if fitted). Hot water is always
available whenever a hot tap is opened and takes priority over the central heating.
Note: The Alpha 240XP uses a permanent pilot for lighting the burner, and the Alpha 240XE burner is lit electronically.
2 USER CONTROLS
Alpha 240XP
Pilot and Burner Viewing Window
OCEAN
Central
Heating
Thermostat
Alpha 240XE
0
HELPLINE (OI322) 669443
QUOTE SERIAL NO. (SEE UNDER BOILER)
OCEAN
0
THERMOSTAT
Domestic
Hot Water
Thermostat
THERMOSTAT
THERMOSTAT
0
THERMOSTAT
0
SELECTOR
Selector
Switch
0
TO LIGHT
Pressin gas knob for60 seconds then release.
Warning:If pilot doesnot light or goesout wait at least
3 minutes.Then repeat.
Gas
Control
SELECTOR
GAS
OFF
TO SET HEATING CLOCK (Mechanical)
Push tappetsout for heating ON andIN for heating OFF.Setcorrect time
by turning 24hrdial. Manual switchto left - permanentOFF.,
middle- heating astappets, right - permanentON.
(Ifin doubt, see UserInstructions).
Burner Viewing Window
2
3
1
04
bar
240
XP
PRESSURE GAUGE
When theboiler is cold theneedle should be ingreen band.
Toincreasepressure connect filling loopunder boiler.
Openvalves. Closewhen needle isin green band.
Disconnectloop. (Contactyour installer ifin doubt).
Clock
(if fitted)
RESET
2
3
1
04
bar
240
XE
System
Pressure
Gauge
Reset
Button
System
Pressure
Gauge
Central
Heating
Thermostat
HELPLINE (OI322) 669443
QUOTE SERIAL NO. (SEE UNDER BOILER)
Domestic
Hot Water
Thermostat
Selector
Switch
TO SET HEATING CLOCK (Mechanical)
Push tappetsout for heating ON andIN for heating OFF.Setcorrect time
by turning 24hrdial. Manual switchto left - permanentOFF.,
middle- heating astappets, right - permanentON.
(Ifin doubt, see UserInstructions).
PRESSURE GAUGE
When theboiler is cold theneedle should be ingreen band.
Toincreasepressure connect filling loopunder boiler.
Openvalves. Closewhen needle isin green band.
Disconnectloop. (Contactyour installer ifin doubt).
Clock
(if fitted)
Fig. 1
2
3 BOILER CONTROLS
1. CENTRAL HEATING THERMOSTAT
This thermostat controls the temperature of the water leaving the boiler for the heating system. For maximum output from the
radiators the thermostat should be left at maximum i.e. fully clockwise. If lower heating temperatures are required, turn the thermostat
anti-clockwise.
2. DOMESTIC HOT WATER THERMOSTAT
This thermostat controls the temperature of the domestic hot water leaving the boiler. For maximum hot water temperatures the
thermostat should be left at maximum i.e. fully clockwise. If lower temperatures are required, turn the thermostat anti-clockwise.
3. SELECTOR SWITCH
This control allows the boiler to provide central heating and hot water or hot water only.
Note: The mid position i.e. vertical, must not be selected. The internal clock and frost thermostat will not operate when the
switch is in the vertical position.
4. PRESSURE GAUGE
This indicates the central heating system pressure. It should always be within the green band when cold, increasing slightly
when hot.
If the pressure falls below the green band i.e. lower red area, refer to the label on the pull out panel for guidance on repressurising the system. Or contact your Installer to have the system checked and pressurised.
5. RESET BUTTON (240XE only)
When the reset button ( ) is illuminated on the Alpha 240XE it indicates that the burner has failed to light - Press the reset
button (see Fig. 1) and the ignition sequence will restart.
6. OVERHEAT THERMOSTAT
This thermostat automatically switches the boiler off in the unlikely event of the boiler overheating. When the thermostat
operates on the Alpha 240XP it turns the pilot off, and the pilot will have to be relit. Refer to the lighting instruction in section 4.
If this continually happens, contact your Service Engineer.
7. PRESSURE RELIEF VALVE
If the central heating system overheats and steam or water is discharged from the pipe connected to this valve, turn the boiler
off and contact your Service Engineer. Your Installer should have told you where this pipe terminates somewhere outside your
dwelling.
8. FROST THERMOSTAT
The boiler has a built-in frost thermostat, which automatically operates the boiler if the water temperature falls below 5°C,
providing the electrical supply is on and in the case of the Alpha 240XP the pilot is alight.
3
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