11
‘24 hour’ mode
In this operating mode, the SpiraVac system will only operate after exactly 24 hours has elapsed since the
‘VACUUM SYSTEM’ ON/OFF switch on the SpiraVac control panel was last set to ON.
The vacuum system will operate repeatedly until the hopper is filled with pellets up to the trap door of the
cyclone, as on the initial operation of the vacuum system.
It is possible to re-set the time that this ’24 hour’ operation occurs to a more suitable time (e.g. during the
evening) to avoid the automatic operation of the vacuum system during the night time.
To do this, simply switch the ‘VACUUM SYSTEM’ switch to OFF, wait about 2 seconds and then switch it
back to ON at the time you wish the ’24-hour’ operation to occur. This time will be automatically stored in
the control system memory and the store will then fill at the same time every day (if required).
NOTE
If the power supply to the Spira Boiler and SpiraVac system is interrupted, either deliberately or otherwise
(e.g. a power cut), the built-in timer function will stop for the duration of the power interruption.
Whilst the SpiraVac system will automatically continue to operate in the ’24 hour’ mode when the power is
reconnected, and the original time setting will be remembered, the actual time it will operate to fill the
hopper will now be incorrect, i.e. delayed by the duration of the power interruption.
Example: If the ‘24hour’ mode was originally set to operate at 6.00pm every day, but a power cut lasting
1 hour occurred, the ‘24hour’ mode will now operate at 7.00pm after the power is reconnected.
It will therefore be necessary to reset the ‘24 hour’ mode following a power interruption if the original ’24
hour’ mode operating time setting is still required. To do this, simply switch the ‘VACUUM SYSTEM’
switch to OFF, wait for about 2 seconds and then switch back to ON at the time you wish the ’24-hour’
operation to occur.
3.4.2 Manual Mode
With the ‘VACUUM SYSTEM’ switch on the SpiraVac control panel set to OFF, the hopper will function as
if no vacuum system is fitted.
In this setting, the pellet hopper can be fed with bagged pellets for as long as required.
The switched live to the boiler will be interrupted when the weight of pellets in the pellet hopper falls below
the minimum level of the contents diaphragm switch, and the burner will shut down.
The burner control panel screen on the Spira boiler will show a ‘WAIT BOILER THERMOSTAT’ message
until the pellet level in the hopper is topped up with at least an additional 20kg of pellets.
Summary of Contents for WPVKIT10
Page 12: ...12 Figure 3 6 SpiraVac operation flow diagram ...
Page 22: ...22 Figure 5 4 Vacuum unit wiring diagram ...
Page 24: ...24 Figure 5 6 Heating system controls S plan type system connection diagram ...
Page 25: ...25 Figure 5 7 Heating system controls Y plan type system connection diagram ...
