The company reserve the right to alter size, shape and specification without prior notice
Page 15
8. Push-button to adjust secondary (dhw)
programming.
9. Secondary (dhw)
switch (0 – standby, 1 – on)
10. Led diode for secondary (dhw), Indicates domestic hot water pump is operating.
11. Water pressure gauge for heating system.
12. Safety thermostat
IMPORTANT:
If an error is displayed on the LED display (1) the boiler will stop. If the error is corrected the boiler will
automatically continue operation.
If error o3 or c3 occurs, (see 1 above) the boiler will cut out. In this instance it is possible to operate the
boiler in central heating mode until the domestic hot water is operational. This can be done by switching
off the domestic hot water with switch number 9.
4.2. Choose type of heating (radiator or under floor heating)
Factory default is for radiators.
To change to under floor heating, follow instructions below
.
1. Disconnect from mains supply
2. Remove front cover of boiler.
3. Remove perspex control panel cover (prize off with
screwdriver down channels at either side)
4. Remove control panel, (Push up from bottom and
pull out. Pull out whole of panel, there should be no
need to disconnect any wires connected to control
panel)
5. Remove black plastic shroud at rear of control
panel by undoing 2 cross headed screws.
6. Control switches for heating curves are in the
position circled in the photograph above.
7. Default setting for radiators is as shown
for under floor heating change to
8. Replace black plastic cover. Re-fit control panel. Re-fit panel protector. Re-fit the boiler front cover.
1
4
2
3
ON
OFF
Function
Pin 1 – ON
Set heating type to under floor, curves from 0.1 to 0.9 are active, minimum boiler
temperature is set to 15ºC, maximum boiler temperature is set to 45ºC
Pin 1 – OFF
(Factory settings)
Set heating type to radiator, curves from 1 to 3 are active, minimum boiler temperature is set
to 25ºC, maximum boiler temperature is set to 90ºC
Pin 2 – ON
Disable outdoor temperature compensation, user must manually select temperature in boiler
Pin 2 – OFF
(Factory settings)
Enable outdoor temperature compensation, default curve for radiator heating is 1.5 and 0.6
for under floor heating
Pin 3
Used during manufacturing process
Pin 4
Used during manufacturing process
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