EHC
Fusion E10 Combi
–
Installation and technical manual
Page 22
14.
Commisioning: Programmer
The programmer allows you to set ON OFF time periods. Some models switch the domestic hot
water on and off at the same time, while others allow the domestic hot water and heating to come
on and go off at different times.Set the ‘On’ and ‘Off’ time periods to suit your own lifestyle. On
some programmers you must also set whether you want the heating and hot water to run
continuously, run under the chosen ‘On’ and ‘Off’ heating periods, or be permanently off. The time
on the programmer must be correct. Some types have to be adjusted in spring and autumn at the
changes between Greenwich Mean Time and British Summer Time. You may be able to
temporarily adjust the heating programme, for example, ‘Override’, ‘Advance’ or ‘Boost’. These are
explained in the manufacturer’s instructions.
The heating will not work if the room thermostat has switched the heating off. And, if you have a
hot-water cylinder, the water heating will not work if the cylinder thermostat detects that the hot
water has reached the correct temperature.
The unit is designed to eliminate the possibility of accidental changes to your programme. Buttons
normally visible only affect your set programme temporarily. All buttons which can permanently
change your programme are located behind the flip down fascia.
Selecting operating mode
The heating and hot water mode select buttons are used to set the operating mode for Central
heating and Hot water respectively. Each has 4 modes as described:
ON:
Central heating and/or hot water on continuously.
(ie. on all the time)
AUTO:
Central heating and/or Hot water will be switched ON or OFF as programmed
ALLDAY:
Central heating and/or Hot water will be switched ON only once each day
(ie. on at the first ON time and off at the last OFF time)
OFF:
Central heating and/or Hot water will be continuously OFF