Vapac LE18-SR, Installation & Operating Manual

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Section 6 Page 18 of 24 18 Feb 2015
assembling, use a new seal and make sure mating surfaces are free of scale particles as they will
prevent a perfect seal and cause leaks.
Note 1: Do not touch an operating cylinder of this type in case there is a leak allowing water at mains
voltage to seep out.
Note 2: Do not interfere with the electrodes, if they are badly eroded and/or the internal positioning
ring is free, a new cylinder should be used.
6.2 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.
6.2.1 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 center
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.
Valve with flow restrictor
3/4 Nylon nut with washer as
part of flexible connector
Strainer