5
Concord CXDi/H -
Users
7 USING THE BOILER FEATURES AND CONTROLS - continued
ON / STANDBY [1/0] BUTTON
Turns the boiler ON and to STANDBY.
WARNING
.
STANDBY does
NOT
electrically isolate the boiler.
When this switch is in the STANDBY position the display will
show :-
To switch the boiler ON press the On/Standby [1/0] button.
The display will show :-
This display will be retained for 5 seconds before the
information screens are displayed.
INFORMATION SCREENS
On initial start up the boiler will indicate the hardware and
software code, the boiler type and indicate if the boiler is ON
or at STANDBY.
If the boiler is at STANDBY the rotating information screens
will not be in evidence.
If the optional outside temperature kit, enabling weather
compensation, has been fitted the display will indicate the
compensated set point temperature.
An example of the display is as follows :-
MONDAY
14 : 10 19 / 09 / 94
ON HIGH 50
°
C
HOURS RUN 250
TEMP SET 82
°
C
PROGRAMMER ON
"ENTER" FOR MENU
MENU
To access the menu screen ensure that the information
screens are being displayed.
Any key, except the [1/0] button, may now be pressed to
access this feature but, as indicated on the information
screen, the [ENTER] button is the preferred means.
On entering this option the first screen displayed will be:-
The [DOWN] button can be pressed consecutively to access
the features required, which are as follows:-
If the weather compensation option is fitted then a further
screen will be displayed after commissioning.
The [UP] button will access the above options in reverse.
When the option required is displayed and the [ENTER]
button pressed another set of menus will be available as
discussed on the following pages.
PROGRAMMER TIMER
The programmer has 3 time zones per day for each day of the
week. Each day can be programmed for the requirements of
that day, giving 7 programmed days, or, using the copy facility,
any number of days can be the same. If a particular time zone
is not required then the ON and OFF periods should be
programmed for the same time.
Each button has an auto repeat function.
The programmer is based on a 24 hour clock and the boiler
comes with a default programme set for :-
All Day
The boiler will respond to this programme unless an
alternative is programmed in.
Using the [UP] or [DOWN] button select the "Programmer
Timer" from the menu and press [ENTER]. The following
menus will be available, using the [UP] or [DOWN] buttons:-
or
or
or
To select any of the above, use the [UP] or [DOWN] button
until the option required is displayed and press [ENTER].
STATUS
Enables the selection of programme hours, all day usage or
24 hour.
If the "Programme Hours" option is selected the boiler will go
on and off subject to the times programmed.
If ALL DAY usage is selected the boiler will come on at the
first "ON" period selected and off on the last "OFF" period
selected - ignoring all other time settings. Based on the above
default programme this means the boiler would run, subject to
any other external controls, from 07:30 to 22:00 hours.
If 24 HOUR is selected the programme times will be ignored
and the boiler will run subject to the external controls until one
of the other options is again selected.
