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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 (on the vacuum unit) to OFF and then back to
ON at the time you wish the store to be pre-loaded.
This time will be automatically stored in the memory of the system control and the store will then fill at the
same time every day (i.e. at 24 hour intervals).
The vacuum system will operate until the hopper is filled with pellets up to the level of the trap door of the
cyclone. In this condition the trap door will be prevented from closing by the pellets. This is intentional as
further operation of the vacuum system is not required with this amount of pellets in the hopper.
If you wish to change the time the store is pre-loaded by the ’24 Hour’ operation of the SpiraVac system,
then simply repeat the process at a different time and then this filling operation will be repeated at this
new time every 24 hours.
Once the vacuum system has filled the hopper with sufficient pellets to prevent operation during the night
time period, the vacuum system will stop.
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’ 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.
8.6 Manual operation
If you run out of pellets in your bulk pellet store the vacuum system cannot operate as there are no pellets
to deliver to the pellet hopper. Until the pellet store can be re-filled, the pellet hopper can be hand fed
with bagged pellets.
To do this, set the ‘VACUUM SYSTEM’ switch (on the vacuum unit) to OFF. The pellet hopper will now
operate as if no vacuum system is installed.
NOTE
With the SpiraVac system fitted, the pellet hopper will not have a reduced maximum capacity.
The level of pellets in the hopper needs to be monitored and topped up as necessary to keep the boiler in
operation. If the level of pellets in the hopper falls to the minimum level the contents switch (built into the
hopper) will automatically switch the boiler off. In this case simply put more pellets (at least an additional
20kg) into the hopper to satisfy the contents switch and the boiler will start again.
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 ...