Display Messages; Error Message:- Lockout; Exam Period; Optimum Start And Optimum Stop - Ambirad SmartCom 3 Owner's Manual

FAN ONLY
Press the + or – buttons to increase or
decrease the required amount of time in 10
minute increments. (Values between 0 and 60
minutes are acceptable by default. The range
can be extended up to 10 hours in the
Engineer Functions).
FAN ONLY
Press OK to accept the setting. The display will
show the overtime minutes remaining. When
the overtime period expires the controller
returns to normal operation.
FAN ONLY
UNDO = reset
Pressing the UNDO button, at any time will
cancel this operation.

3.14 Display Messages.

3.14.1 Lockout Error
When the controller detects a flame failure
signal, the screen will show a LOCKOUT
display and the red LED will illuminate.
ARN I NG !
LOCKOUT
The lockout warning and LED will
continue to display if the flame failure
signal is cleared at source.
In order to reset the lockout, press and release
the LOCKOUT button. After 10 seconds the
controller will return to normal operation.
NB. The lockout will not be displayed for the
first 45 seconds after initial burner start. Fan
and heating outputs will continue to function
normally despite the lockout condition.

3.14.2 Exam period

If the control is used on a system installed in a
sports hall, a temporary
temperature can be set to improve comfort for
people sitting in the building. The screen will
show an EXAM MODE display.
Th 09 : 32
EXAM MODE
00 : 00
This warning will continue to display until the
next time switch or until the undo button is
+ /- /OK
pressed.

3.14.3 Optimum Start and Optimum Stop.

This feature is factory set. If not required, refer to
the Engineer Functions. Optimum start is an
energy saving feature which turns the heating
0 1 : 00
system on at the latest possible time, whilst
+ /- /OK
ensuring
achieved at the ON time.
When the controller is optimising, the following is
displayed. Ventilation remains disabled during
the optimum start period.
00 : 59
Towards the end of a heating period the
controller may turn off the heating early.
The optimum stop period is calculated and
relates to the speed of response of the building.
The optimum stop period is a factor of the
optimum start historical information and will be
limited to the maximum time period set in the
engineer functions. The controller will only allow
the temperature to fall
set point during this period. Ventilation is
disabled during the optimum stop period.
When the controller is optimising, the following is
displayed.

3.14.4 Service Hours

The controller has a programmed burner hour
limit. This is default at 1200 hours but can be
adjusted within the Engineers codes.
Once the heater has reached this set limit, the
screen will show A SERVICE HOURS display to
register that a service is due.
increase in

3.14.5 External sensor fault indication

If an external sensor is used/set within Engineers
settings but the sensor is open circuit, the display
17
that the desired
We 07 : 32
AUTO OPT ON
by up to 3.6°F below
We 16 : 26
AUTO OPT OFF
Th 09 : 32
SERV CE HOURS I
temperature is
the