4
Alpha InTec C, X and GS
the pressure on the gauge goes down into the green area.
By pressing the info button (item 4 in Fig. 1) the information menu is accessed this will then show the information according
to the table below.
6 FROST PROTECTION
7 CONDENSATE DRAINAGE
High efficiency (condensing) boilers remove more useful heat from the combustion gases, resulting in additional water vapour
which is collected within the boiler (as condensate) and run to a suitable drainage point via the condensate drainage pipe.
If the condensate drain pipe runs outside it should be fitted with increased diameter pipe and be suitably lagged to reduce
the risk from freezing.
In situations where there are likely to be extremes of temperature or wind-chill the use of a proprietary trace-heating system
for external condensate drainage pipework, incorporating an external frost thermostat, should be considered.
5 INFORMATION MENU
The boiler has a built in frost protection function to protect the boiler (only) from freezing. If water within the boiler falls below
4°C the boiler will fire in heating mode and raise the temperature of the heating water (in the boiler only) to 30°C.
For this function to be active the gas and electricity supplies to the boiler must be turned on and the boiler be in either
'Standby' or 'On' mode.
Further protection for the mains water supply and heating circuit must be provided separately.
If Alpha external controls are fitted, a frost protection setting is incorporated into the room thermostat activating the central
heating when the temperature falls below 5°C.
Fig. 3 - Underneath of boiler
(C and GS models)
Filling loop
Filling loop taps
Wall
Info Menu
(d - prefix)
d0
d1
d2
d3
d4
d5
d6
d7
d8
d9
Information
FlowSmart cylinder temperature adjustment (45 - 78°C) - GS models 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 (if sensor fitted)
Not used
Fault history - by rotating the CH knob (item 6 in Fig. 25) in this menu the last five faults will be displayed
Units
Shown
°C
m
A x 10 (approx)
°C
°C
°C
°C
°C
°C
Error code
