33
Electric Boilers
SET THE BOILER PARAMETERS
The boiler has 3 key parameters that need to be set in order to make the boiler function correctly:
CLOCK
The time function displays the Time on the front of the boiler during normal operation, this helps the homeowner
to confirm that the programmer has been programmed correctly by letting them see the time the boiler has
become activated.
BOILER FLOW TEMPERATURE
The boiler flow temperature displays on the boiler as “HEAt”. The default position is 65
o
C, this should however be
set to the design temperature of the heating system, in many cases on existing properties with standard radiator
systems 65
o
C will be correct, however underfloor heating systems and low temperature radiator systems may
be as low as 35
o
C. If this is not adjusted on set correctly the boiler may cycle and experience overheating
problems. If a hot water cylinder is present most systems would be remain set at 65
o
C
BOILER DIFFERENTIAL
The boiler differential temperature displays on the boiler as “dIFF”. When the boiler finally reaches the flow
temperature set on the boiler the heat exchanger will turn off to allow heat to dissipate in the system. It will only
fire again when the temperature drops by the number degrees set in this setting. For example if FLOW is set as
65
o
C and dIFF is set as 15
o
C when the boiler flow hits 65
o
C it will not reactivate until 50
o
C is reached. Default
position for this setting is 15
o
C.
To change the settings
with the boiler still in the standby position
press and hold the Menu button (see page
10) untill “CLOCK” begins to flash, using the up and down button press set the time, pressing the menu button
again to move from hours to minutes. If the boiler doesnt enter the admin mode it is likely the boiler is not in the
standby position, press and hold the power button until the boiler enters standby and try again.
Pressing the Menu button again will cause HEAt to be displayed, again using the up and down button set the
heat output to the correct design temperature.
Finally press the Menu button again and dIFF will be displayed, finally using the up and down buttons for the final
time set the heat differential of the boiler.
Press and hold the power button for a few seconds waiting for the boiler to beep and for the Admin menu to be
exited.
CHANGING THE SETTINGS:
