Equipotential Bonding; Water Supply And Connection; Temperature Rating - Classeq P500 Manual De Usuario

Classeq Pass Through Range - User Manual
Warewasher
rating Cable Temperature
(Volts / Phase size
/ Amps)
220-240V /
3G 4.0
1N~/30A
380-415V /
5G 2.5
3N~/12A
380-415V /
5G 2.5
60°C min.
3N~/16A
380-415V /
5G 4.0
3N~/22A
220-240V/
4G 2.5
3~/17A
For electrical rating of the warewasher refer to the rating label
(►2.4).
4.6.5

Equipotential bonding

DANGER!
For safety reasons the
bonded to adjacent metalwork or earthed so
that it is at the same potential (i.e. voltage).
Consult your distributor, Classeq or a qualified electrician if you
are unsure how to do this.
The equipotential
bonding stud is
located at the rear of
the warewasher and
is fitted with an M5
nut. Use the 8mm
spanner to connect
the bonding wire
terminal to this
location and ensure
the nut is securely
fastened.
4.7

Water Supply and Connection

4.7.1 Water supply restrictions
Commercial warewasher wash results may be affected by
external conditions such as incoming water temperature,
pressure, hardness and choice of chemicals.
Supply water temperature:
 4°C minimum
55°C maximum

Supply water dynamic pressure:
The dynamic pressure of the water supply will determine
whether the warewasher needs additional equipment to be
installed in the water supply system, as follows:
Measured water pressure
0 to 2 bar (0 to 200 kPa)
Length
Conforms
of
rating to
cable
3m H07RN-f
warewasher MUST be
Consequence
An external rinse booster pump
must be installed to increase the
pressure of the water supply to the
warewasher.
Measured water pressure
2 to 4 bar (200 to 400 kPa)
>4 bar (400 kPa)
Minimum supply flow rate:
Without Water Softener: 11 litre/minute.

With Water Softener: 4 litre/minute.

Water hardness:
Caution
Damage to the
limescale will NOT be covered by the
manufacturer's warranty, see Section 12.
For the longevity of the warewasher, and to ensure you get
consistently good washing results, the warewasher must wash
with soft water 3°dH, ie water that contains a low concentration
of ions, in particular ions of calcium and magnesium. There are
three ways to achieve this:
The supply water must be naturally soft.

The warewasher is specified to be fitted with an internal

Water Softener.
 Your water supply to the warewasher is from a suitable
external water softener unit.
4.7.2 Water hardness explained
Water hardness occurs because certain chemicals in the rocks
through which the water passes on its way to the consumer
slowly leach out into the water.
The problem shows itself in two forms:
1. When hard water is heated the
chemicals come out of solution and
appear as solid particles (limescale)
that are carried round the
warewasher. These particles are
formed most quickly at the hottest
part of the warewasher – typically,
the rinse element and the Rinse
Tank. This is why the Rinse Tank is
the best place to look to judge if
limescale is being formed in a
warewasher.
2. Most commercial washing
chemicals operate much less
efficiently in hard water, and this will often show as poor
results, failure to remove tannin stains or condensation on
glasses. Tannin stains appear to cling to the hard water film
in the drink, which then clings to the surface of the cup or
saucer. With soft water this is not the case.
Some types of hard water do not produce limescale when
heated, but still reduce the performance of washing chemicals, as
mentioned above. This is known as permanent hardness.
Temporary hardness is when the hardness can be largely
removed by conversion into limescale by boiling.
Consequence
No modifications required -
warewasher can be installed with a
direct hose connection to the
existing water supply.
A pressure reducing valve must be
installed to reduce the pressure of
the water supply to the
warewasher - maximum allowable
pressure is 4 bar.
warewasher d caused by
UK
9