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www.ves.co.uk
ecovent
Heat Recovery Units
Con nued
Maintainance
6
To replace the fan assembly, ensuring the pitot tapping on the fan inlet ring is accessible,
locate the moun ng plate over the fixings retained in the unit bulkhead.
2
3
Secure the
loose fixings through the moun ng plate and ghten all the moun ng fixings.
1
A ach the
measuring tube to the pitot tapping on the inlet ring ensuring that it is clear of all moving
parts.
Reconnect the supply plugs as in Fig. ; if more than one plug is used, ensure the
correct plugs are reconnected as marked.
E
nsure that the fans are free running by following the fan alignment instruc ons on page 14,
adjust as required.
EVC0, EVCB0 and ECVCB1 units feature a double inlet centrifugal fan mounted on an adapter
plate.To remove, unplug as per Fig. undo the two screws and carefully remove the fan/
adapter plate assembly, retaining all fixings.
To replace the fan assembly, secure one fixing leaving enough of a gap to allow the adapter
plate to slide into place. Fit the remaining fixing and ghten both. Ensure the impellor is free
running.
Reconnect the supply plugs as in Fig. ; if more than one plug is used, ensure the
correct plugs are reconnected as marked.
There is no pitot on this fan assembly.
EVCB4 units feature side access/withdrawl for fan access. Carefully remove the side fan access
doors and remove as figure . The supply fan requires the removal of a secondary internal
cover plate to gain access.
Ensure that all removed panels/plates and components are refi ed correctly before restar ng
the unit.
Fan assembly removal/
installa on
(EVC0/EVCB0/EVCB1)
Fig.
31
31
Fan assembly removal/
installa on
(EVCB4)
Fig.
32
32
27 28
27 28