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Vapac dv4 Instructions Manual page 3

Minivap humidifier

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Minivap
Plumbing - Cold Water Connections
DO's
DO connect only to normal town piped water supplies.
DO install a stop-valve/shut-off 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 the unit -
1.2 litres/min (0.3 US gal/min).
DO use the flexible water connection provided.
DO thoroughly flush through new pipework before
connecting to the unit.
DON'Ts
DON'T connect to a water supply that has been softened
using a salt exchange system (sometimes called base
exchange or ion exchange system).
DON'T connect to demineralized water supplies.
DON'T overtighten the water supply connection with a
wrench or spanner- a flexible connection with nylon nut
with washer is provided to allow a firm hand-tightening - if
water seepage occurs, undo the nut to wipe the washer
clean and then re-seat it.
Plumbing - Drain Connection
DO's
DO use copper pipe or plastic pipe rated for
°
°
1
OO
C (212
F).
DO arrange to discharge drain water from the unit into a
vented and trapped drain at a position where flash steam
rising from the drain line tundish 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 other equipment
connected to it.
General
DO ensure metal drain and supply water pipework is
grounded electrically close to the unit.
Water quality:
Hardness:
50 - 500 ppm (3 - 30 gr.1 US gal.)
Conductivity:
80 - 1000 microSiemens/cm
Water Pressure: 0.3 - 8 bar (5 - 120 psig)
Water Flow Rate: 1.2 litres/min. (0.3 US gal.lmin)
Drain Flow rate:
4.5 litres/min. (1.2 US gal./min)
a)
Tundish fill-cup
b)
Steam cylinder
c)
Drain pump
d)
Drain trap
e)
Feed valve with flow restrictor
f)
Feed/Drain manifold
g)
Water connection ¾
h)
Flexible connector with 3/4" nut at both ends
j)
Strainer
k)
Stop valve
l)
Ø35mm (1 3/8" steam hose + hose clips
m)
Ø35mm (1 3/8" copper pipe + support
Tundish
3

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