2
Concord CXDi/H -
Users
WARNING
.
This appliance
MUST
be efficiently earthed.
This appliance must not be subject to incorrect use:
It is
ESSENTIAL
that the instructions in this booklet
are strictly followed, for safe, economical operation
of the boiler.
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.
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
If the boiler is at STANDBY the rotating information screens
will not be in evidence.
See Frame 5 for details on information screens.
2 FEATURES OF THE CONTROL SYSTEM
In addition to the operational characteristics described above,
the control system incorporates the following features
accessible to the user or service engineer:
ADJUSTABLE BOILER TEMPERATURE CONTROL
This is factory preset at 85
o
C but may be adjusted by the user
between 60 and 85
o
C.
PROGRAMMER TIMER
A maximum of 3 time periods per day can be programmed in to
the boiler.
Note
.
This is a boiler timer only and does not replace a
conventional system programmer serving more than one
heating zone.
OUTSIDE SENSOR (Optional extra)
If the optional outside sensor is fitted, the control system
will recognise this and automatically regulate the boiler
flow temperature to changes in the external temperature.
If the sensor is fitted, an extra status information screen
will appear, stating whether the device has been activated
or not (i.e. Sensor on/off).
COMMISSIONING INSTRUCTIONS
These are provided to assist the installer to commission
the boiler.
1 THE CXDi/H CONTROL SYSTEM
Current Gas Safety (Installation and Use)
Regulations or rules in force
impose certain
statutory obligations on gas users. This appliance
must be installed by a CORGI registered installer.
WARNING
.
The ON/STANDBY [1/0] button does
NOT
electrically isolate the boiler.
The
CXDi/H
incorporates an advanced microprocessor based
control system which operates all electrical functions of the
boiler, including automatic ignition, flame detection, thermostatic
control and high/low burner operation. In addition, the
microprocessor also has onboard commissioning and servicing
instructions and a fault diagnosis programme.
ON / STANDBY [1/0] BUTTON
Turns the boiler ON and to STANDBY.
When this switch is in the STANDBY position the display will
show :-
CXDi
C O N C O R D
EXIT
COPY ENTER
YES
NO
ADV
I
II
Con 1389
Display
On/Standby button
Up/ down buttons
CAUTION.
To avoid the possibility of injury during the use or cleaning of this appliance
care should be taken when handling edges of sheet steel components.
