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Minivap
Service and Maintenance
As the operation of the Minivap is entirely automatic, it
normally requires no attention on a day-to-day basis.
General cleaning and maintenance of the component parts
of the Minivap 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 Minivap is
part of an air-conditioning system being serviced regularly,
the Minivap should be inspected at the same time.
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.
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, 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 water 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 Pipework.
Turn on water supply.
Reconnect electrical
supply to allow unit
to operate.
Valve with flow
restrictor
Strainer
¾" Nylon nut with
washer as part of
flexible connector
Note: Always replace the strainer after cleaning as it is
needed to prevent material lodging in the valve seat or
blocking the small flow control restrictor which is fitted in
the valve.
.
Drain Pump
The pump should be inspected and cleaned regularly. It
is recommended that this be done at each cylinder
exchange especially in hard water areas. Failure to keep
the pump clear and operational will result in reduced
cylinder life.
To remove the pump for maintenance purposes proceed
as follows:
a. Depress and hold the manual drain switch to empty
the cylinder. The pump 'sound' changes distinctly once
the cylinder is empty. When this occurs release the
switch.
b. Disconnect unit electrical supply and follow the
cylinder exchange procedure.
C. If, due to an electrical or mechanical fault, the cylinder
cannot be emptied by the pump, it will be possible to
drain most of the water into a bucket by disconnecting
and lowering the top end of the tube which feeds cold
water to the cylinder from the fill-cup. The remaining
cold water will run into the base tray when the pump is
withdrawn from its'O' ring connection and/ or the
cylinder is lifted out.
d. Ease the pump free of the feed/drain manifold '0' ring
connection, slide it fully off its base plate and release
the connecting tube.
e. To dismantle and re-assemble pump refer to diagram
below.
In operation the stainless steel shaft remains stationary
while
f. the rotor and impeller rotate on ft. Remove all scale
build-up on the shaft so that the impeller can rotate
freely.
Ensure that the '0' ring seal is correctly positioned when
g. fitting the inlet housing to the main pump motor body.
When reassembling, make sure the brass spinner is
replaced on the shaft in front of the impeller. A smear of
multipurpose grease should be applied to the '0' ring so
that the impeller housing can be rotated into position
without distorting the '0' ring underneath ft and so
maintain the water seal.
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