Using the timer, it is possible to set two
separate time periods at which the appliance will operate.
Ensuring the programmer is on standby (LCD screen will not be
illuminated), press the CLOCK button three times. The first pair
of digits on the clock display will flash and the timer settings
display will read ON. The number immediately below this will
indicate that programme #1 is currently being modified.
Press the TIMER ADJUSTMENT buttons (+/-) until the
time is set to the hour you wish the appliance to start. Press the
CLOCK button; the second pair of digits in the clock display will
begin to flash. Adjust in the same way to set the minutes past the
hour. Press the CLOCK button and set the hour you wish the
appliance to cease operation. Press the CLOCK button once more and
set the minutes past the hour.
To return to standby mode, repeatedly press the
CLOCK button until the current time is displayed. To set a second
programme, instead press the CLOCK button once. The first pair of
digits on the clock display will flash and the timer setting
display will read ON. The number immediately below this will
indicate that programme #2 is currently being modified.
Use the TIMER ADJUSTMENT buttons (+/-) as
described
above to set the second programme. After setting
the minutes past the hour, press the CLOCK button once to return
to standby mode. To activate the programme(s), press the
TIMER ON/OFF button once. The timer status display will read 1.
The Trianco Activair should now cut in and out according to the
times set. The running indicator will display the SUN symbol
whenever the appliance is operating.
Please note that during the time periods at which
the appliance is set to operate, it will not do so constantly.
When the cylinder water temperature has reached the required
level, the heat pump will cease operation until the water has
cooled or has been used. During these periods, the SUN symbol will
flash in the running indicator display.
Please ensure that all other required parameters,
such as cylinder water temperature (see adjacent column), have
been set before operating the appliance.
To cease operation in this mode, press the TIMER
ON/OFF button once. The timer status display will read 0 and the
appliance will return to non-timed control mode.
OPERATING PARAMETER DISPLAY
In certain circumstances, the unit may enter a
temporary lockout mode in order to maintain efficient operation.
During such times, a code will appear on the programmer display
(fig. 1). This is entirely normal and the unit will automatically
resume functioning once it has completed its reset cycle. In the
unlikely event the appliance does not resume operation, full
descriptions of the operating parameters and their causes can be
found on page 25.
FROST PROTECTION
As the appliance may be fitted externally to the
property being heated, the water in the system may be in danger of
freezing in very cold weather. As such, the Trianco Activair has
frost protection which will bring the heat pump on should the
temperature drop too low. However, to provide protection in
the event of a power outage, a suitable antifreeze should be added
to the system.
DEFROST MODE
If the temperature is cold enough for ice to
develop on the coil, this may become clogged and cause the
appliance to cease operation. Should this occur, the unit will
automatically enter defrost mode. This will divert heat from the
heating circuit back to the coil until the ice has melted. The
DEFROST symbol will appear above the temperature display (see fig.
1)during such times.
PRESSURE SWITCH
Should the refrigerant pressure within the
appliance reach too high a level, the unit will automatically
switch off until the pressure has been reduced, whereupon the unit
will restart automatically. Please note that the unit may take
several minutes to restart after the pressure switch has operated.
Refer to the operating parameter descriptions, page 25, for
further details.
AMBIENT TEMPERATURE CUTOUT
Should the ambient temperature around the
appliance reach too high a level, the unit will automatically
switch off until the temperature has been reduced, whereupon
the unit will restart automatically. Please note, that the unit
may take several minutes to restart after the cutout has operated.
Refer to the operating parameter descriptions, page 25, for
further details.
SIMPLE FAULT-FINDING
If the appliance fails to start for no apparent
reason, carry out the following checks before referring to
the operating parameter and fault-finding guide (page 25/26), or
calling your service engineer:
1. The unit may be running through a process to
clear an operating parameter condition. In most cases, this will
becleared automatically, though if it persists, check the
programmer display (fig. 1) for an operating parameter number.
Refer to the guide on page 25 for full descriptions and remedies.
2. Ensure there is a current heat demand from
the programmer. Ensure the programmer clock and timer controls
have been set in accordance with the instructions on pages 6/7 or
that it is switched on (if in non-timed mode).
3. Check for failure in the electrical supply.
4. Check for a blown fuse. If the fuse has blown
and the replacement also fails, switch off the mains electrical
supply to the appliance and contact your service engineer.
5. Check the circuit breaker (if fitted). If this
has tripped, reset and restart the appliance. If the circuit
breaker trips for a second time soon after, switch off the mains
electrical supply to the appliance and contact your service
engineer.
Note: if the appliance has been shut down due to a
failure of the power supply, the programmer contains a battery
backup which will allow the preservation of all settings and
timings. If the appliance is operating, but the water temperature
is lower than expected:
1. Check that all isolation valves are fully open.
2. Check the water temperature setting is not too
low. This
can be increased by following the instructions on
page 7.