17
Other Maintenance:
•
Should only be carried out by a qualified
electrician.
•
The steam cylinder should be drained prior to
carrying out any maintenance in the steam
section – This must be done prior to isolating
the electrical supply, i.e. before removing the
front access panel.
•
The unit should be isolated from the electrical
supply before any cover or access panel is
removed.
2.2
Service and Maintenance
As the operation of the Vapac is entirely automatic, it
normally requires no attention on a day-to-day basis.
General cleaning and maintenance of the component parts
of the Vapac are recommended at intervals of about one
year, but this is largely dependent upon the frequency of its
use and the quality of the water supply. Where the Vapac is
part of an air-conditioning system being serviced regularly,
the Vapac should be inspected at the same time.
2.2.1
Feed Valve with Strainer
The nylon bodied solenoid valve incorporates a small nylon
strainer which is a push fit in the 3/4" inlet of the valve. With
a new plumbing installation, residual loose solid material in
the pipework could partially block the strainer after start-up.
If for this or any other reason a restriction of the water flow is
suspected (outside of supply pressure considerations), it
would be possible to clean the strainer as follows:-
Turn off the water supply to the Unit.
Undo the nylon nut connecting
the flexible connection to the
valve inlet .
The strainer can be removed
using ‘long-nosed’ pliers to grip
the centre flange provided on
the strainer for this purpose.
Withdraw the strainer.
Wash and replace it.
Reconnect and turn on water
supply.
Reconnect electrical supply to
allow unit to operate.
Note: Always replace the
strainer after cleaning as it is
required to prevent material
lodging in the valve seat or
blocking the small flow control
restrictor which is fitted in the
valve.
2.2.2 Drain
Pump
1) Place a bucket below the
pump, to catch any water
remaining in the housing
or pipework.
2) Remove the two screws
holding the pump cover &
lift clear.
3) Undo the three screws
holding the pump body to the
feed & drain manifold, and
remove it - any water trapped
in the pump will be released at
this point.
4)
Fit the replacement pump by
following the above steps in
reverse order. Ensuring that the
O-ring surrounding the impeller
Housing is correctly seated, and
That it mates correctly with the
Feed / drain manifold.
Valve with flow
restrictor
3/4 Nylon nut with washer as
part of flexible connector
The pump is a sealed unit and should
not be dismantled. Instructions for
removal / replacement are as follows
:
Steam and Condensate Hoses
The hoses used with and in the Vapac should be inspected at the normal service visits as part of normal maintenance. At the first signs
of deterioration, a hose should be removed and replaced.
Strainer
