Benchmark Alpha E-Tec Plus 28 - Page 32

Alpha E-Tec Plus 28, 33 and 38 - Commissioning
7. Explain to the User that an internal frost thermostat is fitted in the boiler, and that the electrical supply to the
boiler must be left on for the thermostat to operate, i.e. the boiler must be set to standby.
8. Explain to the User that in certain weather conditions the flue terminal will emit a plume of steam, i.e. water
vapour. This is safe and quite normal.
9. Show the User the position of the condensate discharge pipes.
10. Leave the instructions with the User.
11. Ensure the Benchmark Checklist at the back of these instructions has been completed after the boiler has
been installed and commissioned.
Note: It is a requirement that the installation is registered by the installer through the Gas Safe Gas Work Notification Scheme.
12. Leave these Installation and Servicing instructions with the User for use on future calls.
6.10 INFORMATION MENU
By pressing the INFO button (item 4 in Fig. 6.1) for >1s the information menu is accessed, this will then show the
information according to the table below. Scroll through the information using the DHW up and down temperature
buttons.
Pressing
to show the value and Reset to return to the Info number.
Info Menu
(d - prefix)
d0
d1
d2
d3
d4
d5
d6
d7
d8
d9
d10
d11
d12
d13
d14
d15
d16
d17
d18
d19
d20
d21
d22
Information
FlowSmart cylinder temperature adjustment (optional) with Alpha Diverter kit only
Flame signal
Central heating water temperature leaving the boiler
Domestic hot water temperature leaving the boiler
Central heating set point temperature
Domestic hot water set point temperature
External weather compensation probe temperature (value flashes if negative)
Mains inlet temperature or FlowSmart cylinder temperature
CH return temperature
Fault history - by using the CH buttons (item 6 in Fig. 6.1) in this menu the last five faults will be displayed
Fault history reset - when in this menu, press and hold the Summer/Winter button to clear the fault code history
Not used
Pump speed (0 = OFF, 1,2,3,4,5,6,7,8,9)
Not used
CH flow
Fan speed during current operation
Flue sensor reading
Calculated flow temperature
Screed heat function, hours operated
Toggles between safety software version / functional software version
Not used
Not used
Service reminder function, number of months remaining
Units
Shown
°C
µA
°C
°C
°C
°C
°C
°C
°C
Error code
Speed level
l/h/100
rpm/100
°C
°C
h
n/a
months
6.11 CONVERTING THE BOILER TO OPERATE ON LPG
If the boiler has to be converted for LPG, obtain the relative conversion kit. The gas conversion operation
must be carried out by a competent and suitably qualified Gas Safe registered engineer.
To convert to LPG the following operations are required:
• Isolate the appliance from the electric and gas supplies.
• Replace the injector located on the upper fitting of the gas valve and re-seal the connections (Fig. 7.6).
• Re-instate gas and electric supplies.
• Calibrate the new fan speed for LPG (Section 6.13).
• Check / adjust the correct CO
2 (Section 6.12).
• After completing the conversion, apply the sticker (supplied in the conversion kit) near the boiler data plate.
Using an indelible marker pen, delete the data relative to the old type of gas.
These adjustments must be made according to the type of gas used, given in the table (Section 3).
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