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5

Alpha E-Tec 28 and 33

1. 

BOILER LOCATION

Always ensure the following clearances are available around the casing of the boiler:-
 

Top: (horizontal flue) 235 mm, Top: (vertical flue) 150 mm, Bottom: 150 mm, Each side: 5 mm, Front: 450 mm

Do not store any other articles in a cupboard containing the boiler and never place any clothing or combustible material on or 
near the boiler or flue pipe.

2. 

FLUE TERMINAL

The terminal on the outside wall must not be allowed to be obstructed. If it is damaged, in any way, turn the boiler off and 
contact your Service Engineer.
Note: The Alpha E-Tec boiler is a high efficiency condensing boiler and when operating vapour will be emitted from the 
terminal. This is safe and quite normal.

3. 

MAINS FAILURE

In the event of an electrical supply failure the boiler will not operate. When the supply is restored, the boiler will return to 
normal operation. Remember to reset any controls, if fitted, when the supply is restored.
If the mains water supply fails, there will be no hot water from the taps. The boiler will continue to provide central heating.

4. 

ADDITIONAL BATHROOM FITTINGS

Any equipment such as mixing valves, showers, bidets etc. must be designed to operate at mains water pressure. Contact 
your plumbing merchant or installer for advice when considering purchasing such items.

5. CLEANING

Use only a damp cloth and mild detergent to clean the boiler outer casing. Do not use abrasive cleaners.

6. SERVICING

To maintain efficient and safe operation of your boiler, routine annual servicing is essential.
For advice on servicing contact:- The Alpha Helpline: 0844 871 8764.

7. 

GAS LEAK

If a fault or gas leak is suspected, turn off the gas supply. Do not touch any electrical switches, do not smoke and extinguish 
all naked flames. Contact the National Gas Emergency Service immediately on 0800 111 999.

8. 

ELECTRICAL SUPPLY

The boiler requires a 230/240 V ~ 50 Hz supply, fused at 3 A.
To connect a plug:-
The colour of the wires in the mains lead of the boiler may not correspond with the coloured markings identifying the 
terminals in your plug. In this case proceed as follows:-
The wire coloured green and yellow must be connected to the terminal in the plug that is marked with the letter 

E, or by the 

earth symbol 

, or coloured green or green and yellow.

The blue wire must be connected to the terminal which is marked with either the letter 

N or coloured black.

The brown wire must be connected to the terminal which is marked with the letter 

L or coloured red.

THE APPLIANCE MUST BE EARTHED.

9  IMPORTANT NOTES

10  OPTIONAL BOILER CONTROLS (if fitted)

There is a range of controls available from Alpha to operate your boiler. In addition to the items listed below the Alpha E-Tec 
boilers are compatible with most controls available on the market. However to get the most comfort and efficiency from your 
boiler we recommend the Alpha Climatic controls with enhanced remote boiler functions and efficiency control.

Please refer to the instructions provided with the controls for further information on their setting and use.

Available Alpha controls:
Alpha Easy-Stat wireless programmable room thermostat ........................................................................Part No. 7.2000050
24hr mechanical heating clock (boiler mounted) ........................................................................................Part No. 6.1000201
Alpha Climatic wired programmable boiler energy manager  .....................................................................Part No. 3.022144
Alpha Climatic wireless programmable boiler energy manager (boiler mounted receiver) .........................Part No. 3.022143
External weather compensation probe .......................................................................................................Part No. 3.022383

Содержание E-Tec 28

Страница 1: ...venoaks Kent TN15 7RS For Technical help or for Service call ALPHA HELPLINE Tel 0844 871 8764 website www alpha innovation co uk Set for use with Natural Gas Leave these instructions with the User These instructions have been carefully prepared but we reserve the right to alter the specification at any time in the interest of product improvement Alpha Therm Limited 2017 ...

Страница 2: ...res are still active Off In this mode there is electrical power to the boiler but the boiler will not function in any condition On In this mode the boiler can be switched between Summer or Winter settings by pressing the Mode button item 1 in Fig 1 Summer setting The boiler will only provide hot water when a tap is turned on and the central heating will not activate even if requested by external c...

Страница 3: ...and temperature will still be maintained according to the setting of the room thermostat 3 HEATING AND HOT WATER TEMPERATURE Fig 2 External weather compensation probe fitted Flow temperature C External temperature C 27 15 5 5 10 0 10 15 20 25 25 60 40 85 50 Flow temperature in brackets ie 25 to 50 C range when boiler is used with a low temperature system such as under floor heating Setting 1 to 9 ...

Страница 4: ...tem for external condensate drainage pipework incorporating an external frost thermostat should be considered 7 GAS SAFETY REGULATIONS Current Gas Safety Installation and Use Regulations It is the law that all gas appliances are installed and serviced by a competent person i e Gas Safe registered personnel Failure to install or service appliances correctly could lead to prosecution It is in your i...

Страница 5: ...lt or gas leak is suspected turn off the gas supply Do not touch any electrical switches do not smoke and extinguish all naked flames Contact the National Gas Emergency Service immediately on 0800 111 999 8 ELECTRICAL SUPPLY The boiler requires a 230 240 V 50 Hz supply fused at 3 A To connect a plug The colour of the wires in the mains lead of the boiler may not correspond with the coloured markin...

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