Vapac LE18-SR, Installation & Operating Manual

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Section 2 Page 10 of 24 18 Feb 2015
2.0 Plumbing Considerations.
2.1 Cold water supply.
General
The Electrode Boiler range of units is capable of operating with mains water supplies within the
following limits:-
Hardness
50 –500 ppm
Conductivity 80 – 1000
µ µ µ µ
S/cm
Silica 0
Pressure of between 1 - 8 bar.
Do’s
Do install a stop-valve/isolating valve and a strainer close to the unit.
Do provide a water supply with sufficient pressure and pipe size to ensure an adequate flow rate to all
units connected to the system.
Do use the water connection with nylon nut provided.
Don'ts
Don’t use a wrench or other tool to tighten the water supply connection - the nylon nut and rubber
washer provided, should only require tightening by hand to effect a seal. If water seepage occurs,
undo the nut to wipe the washer clean and re-seat it.
2.2 Drain connection.
General
Do's
Do ensure metal drain and supply water pipework is grounded electrically close to the unit (a
ground/earth stud is positioned on the underside of the cabinet
Drain capacity per cylinder = pump discharge rate of max 16.8 l/min at 50 Hz (17.2 l/min
at 60 Hz).
Drain Connection
Do’s
Do use copper or plastic pipe rated for 100 oC.
Do arrange to discharge drain water from the unit into a trapped and vented drain at a position where
flash steam rising from the drain line vent will not pose a problem for the VAPAC or other equipment.
Do provide adequate fall for the drain pipework to allow free flow of water drained from each unit.
Do ensure drain line pipe size will accommodate water being drained at the same time from all the
VAPAC units that are connected to it.
Water Supply rates
1.2 l/min
2.4 l/min
<= LE18-SR
>= LE30-SR