Vapac VapaNet LFE Series, Руководство по установке и эксплуатации

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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
The pump should be inspected and cleaned regularly. It
is recommended that this is 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:
•
Depress and hold the manual drain switch to
empty the cylinder. The pump sound changes
distinctly when the cylinder is empty. When this
occurs release the switch.
•
Disconnect unit electrical supply and follow the
steam section removal instructions. Once the
steam section has been removed, the pump
can be removed.
•
Ease the pump body away from the cylinder,
sliding it fully off its base plate and release the
connecting tube.. As the pump inlet is
withdrawn from its ‘O’ ring connection, some
hot water may be released, so care should be
taken.
•
To dismantle and re-assemble pump refer to
the diagram below.
•
In operation the stainless steel shaft remains
stationary while the rotor and impeller rotate on
it. Remove all scale build-up on the shaft so
that the impeller can rotate freely.
•
Ensure that the ‘O’ ring seal is correctly
positioned when fitting the inlet housing to the
main pump body.
When re-assembling, 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
‘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.
The steam section should be refitted by following the
removal instructions in reverse order, reversing all
instructions.
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.
Valve with flow
restrictor
3/4 Nylon nut with washer as
part of flexible connector
Strainer
Shaft
‘O’
Ring
Rotor
Impeller Spinner