2
Alpha InTec C, X and GS
The Alpha InTec range of high efficiency condensing boilers incorporate the latest technology in boiler design. With improved
burner efficiency and reduced electrical consumption together with high quality and reliability.
The boiler output will automatically adjust according to the requirements of the system.
The InTec range are designed to work with most central heating controls however we recommend the Alpha Comfort
standard controls or the enhanced Alpha Climatic boiler energy manager further improving the system efficiency by varying
the system temperature depending on the room temperature and heat losses.
InTec GS models have a flue gas heat recovery device fitted within the boiler casing. The device recycles heat recovered
from the flue exhaust gases which is used to pre-heat the incoming cold mains water supply before entering the boiler,
thereby reducing gas consumption and improving domestic hot water efficiency.
In addition all InTec models feature optional connections for an outside sensor to enable the boilers built in weather
compensation feature.
The boilers will provide central heating when required during the on times as set according to the controls fitted. Hot water
will always take priority over the central heating whenever a hot tap is opened.
Fig. 1
2 OPERATING THE BOILER
1 INTRODUCTION
Make sure the heating system is filled and the needle on the pressure gauge (item 7 in Fig. 1) is in the green band. If
incorrect refer to Section 5.
Switch the boiler on at the mains supply socket switch. The boiler will automatically go through a system purging operation
for 8 minutes; this is indicated by a count down on the display starting from 96. During this operation the pump will turn on
and off to help remove any air that may be trapped in the heating system. If the boiler has already been commissioned by the
installer then this operation can be terminated by pressing the reset button (item 3 in Fig. 1).
Note:
It is important to allow this purging operation to function when the boiler has been initially installed to remove all the air
from the system.
After this purging operation the boiler will be in 'Standby' or 'On' mode.
By pressing the On-Off button (item 1 in Fig. 1) the Standby or On mode can be selected, or press and hold the On-Off
button for eight seconds to turn the boiler off.
Standby -
In this mode the boiler will not provide hot water or central heating, but frost protection and pump circulation
features are still active.
Off -
In this mode there is electrical power to the boiler but the boiler will not function in any condition.
1 On-Off/Standby button
2 Summer/Winter button
3 Reset button
4 Information button
5 Domestic hot water temperature
selector switch
6 Central heating water temperature
selector switch
7 Heating system pressure gauge
8 DHW mode active
9 Boiler locked does not require reset via
“RESET” button
10 Flame present symbol and relative
power scale
11 Operating in summer mode
12 Operating in winter mode
13 Central heating mode active
14 Temperature indicator, boiler info and
error codes
15 Boiler in Stand-by mode
16 Presence of external connected devices
17 Solar function active
18 Functioning with external temperature
probe active (optional)
19 Boiler connected to remote control
(optional)
20 FlowSmart option on (GS models only)
21 Optional boiler controls (if fitted)
bar
0
4
3
2
2.5
3.5
1.5
0.5
1
CORRECT PRESSURE
WHEN COLD
RESET
INFO
RESET
BOOST
bar
°C
x100rpm
1
2
3
4
5
6
7
21
RESET
BOOST
bar
°C
x100rpm
8
9
10
11
12
13
14
15
16
17
18
19
20
The boiler controls are located on the control panel, for the InTec C and GS models this is located behind a drop down flap.
Please read these instructions carefully before operating your boiler.
