23
Full Pin
1
2
Size 1 / 2 (2 electrode)
2.1
Service Advice
The water hardness and the humidity demand at site will
determine the effective life of a steam cylinder. Units located
in areas with naturally soft waters will experience the longer
cylinder life, possibly upwards of 12 months in calendar
terms. With hard waters, a more frequent cylinder exchange
must be expected and cylinder exchange 2 or 3 times a year
can be the average situation. The normal scaling up of the
Vapac steam cylinder is outside the Vapac warranty.
2.1.1
Procedure for cylinder Exchange.
1.
With the power connected to the unit, manually drain
the unit, by depressing (and holding) the Run/Off/Drain
Switch to the lower momentary drain position.
2.
Disconnect the Vapac from the incoming electrical
supply by means of the external isolator (disconnect
switch). This should be “locked off” to prevent
accidental operation.
3.
Unlock the access panel, and swing open to gain
access to the steam cylinder.
4.
Carefully ease off (lever) the electrode caps (1& 2). If
the cylinder is to be replaced, care should be taken not
to twist the electrode caps while removing the black
power caps. As the electrodes can rotate in the
cylinder bosses (if the plastic cylinder is hot) and lead to
unbalanced electrical loads.
5.
Loosen the hose clip (1) and disconnect the steam
hose (4) from the top of the cylinder.
6.
Using a twisting movement, lift the cylinder clear of its
seating in the feed/drain manifold and carefully remove
the used cylinder from the unit.
7.
Inspect the feed/drain manifold to ensure to ensure this
is clear of sediment.
8.
The drain pump can be removed for inspection and
cleaning, by following the instructions below.
9.
With the pump back in position, insert the cylinder into
the feed/drain manifold, pushing it down firmly to
ensure it is seated correctly.
10.
Reconnect the steam hose.
11.
Replace the electrode caps – ensure that they are
replaced in the same sequence as when removed. With
the cylinder full pin towards the front of the unit,
electrode number 1 will be to the left of the white
cylinder full electrode. Electrodes 2, 3, 4 etc will be
sequentially connected clockwise around the cylinder
(from number 1), when viewed from above. The cables
carry colour-coded sleeves to indicate the phase and
when connected correctly should follow the following
sequence. Red/Yellow/Blue/Red/Yellow/Blue when
viewed clockwise from the top. (NB The colour
sequence for two electrode cylinders will be Red/Blue.
12.
The connections to the cylinder should be routed in as
close as possible to their original route.
2.1.2
Typical Cylinder / Electrode Layouts
1
2
3
Full Pin
Fig 1
1
Full Pin
2
3
1
Full Pin
3
5
2
4
6
Size 3 (3 electrode)
Size 4 (3 electrode)
Size 4 (6 electrode)
Fig 1
Component Identification
See technical data for cylinder size fitted to your unit
