7
8
With the pump back in position after cleaning, make sure
the o-ring seal and capping ring are in position on the
manifold then insert the cylinder into the feed / drain
manifold, pushing it down firmly, and reconnect the
steam hose.
9
The electrode caps must be reconnected in accordance
with the details on the collar supplied with the new
cylinder – electrode N°1 on the electrode nearest to the
white cap.
10
The Vapac unit is supplied with electrode cables routed to
avoid contact with the door. After a cylinder exchange it
is important to replace the cables as close as possible to
their original route.
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 ¾” 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 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.
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.
Fault / Service Indications – Requiring Operator Intervention
User LED 1 State
Description
1
AMBER
Drain fault
2
AMBER flashing 1 second period
Feed fault
3
AMBER flashing 2 second period
Over current fault
4
GREEN
Service now
1,2&3
Fault Stop: Once the problem has been cleared the
fault can be reset by the following procedure:
Power the unit right off using the local isolator (not
the unit on/off switch), wait ten seconds then re-
apply power.
4
Service the unit by following the instructions within
the Manual.
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:
1
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.
2
Disconnect unit electrical supply and follow the cylinder
exchange procedure.
3
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.
4
Ease the pump free of the feed / drain manifold ‘o’ ring
connection, slide it fully off its base plate and release the
connecting tube.
5
To dismantle and re-assemble pump, refer to diagram
below.
6
In operation, the stainless steel shaft remains stationary
whilst the rotor and impeller rotate on it. Remove all
scale build-up on the shaft so the impeller can rotate
freely.
7
Ensure that the ‘o’ ring seal is correctly positioned when
fitting the inlet housing to the main pump motor body.
When re-assembling, make sure the brass spinner is
replaced on the shaft in front of the impeller. A smear of
multi-purpose grease should be applied to the ‘o’ ring so
that the impeller housing can be rotated into position
without distorting the ‘o’ ring underneath it and so
maintain the water seal.
Summary of Contents for MiniVap LMV2
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