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.
Air
source heat-pump boilers
