Assembling The Safety Valve; Joining The Appliances; Hydraulic Connection And Drain Connector; Electrical Connection - Nordcap GRK9 Manual Del Usuario

5.2.5 - Assembling the safety valve (Fig. 9)
• Wrap some Teflon tape or a specific sealant
around the threaded connection ¾"M projecting
from the shelf.
• Screw body "A" of the safety valve tightly into the
coupling.
5.2.6 - Joining the appliances (Figs. 11 and 12)
• (Pos.1A) Disassemble the control boards of the
appliances removing the four fastening screws.
• (Pos.1B) Remove the fastening screw nearest to
the control board, from each side having to be
joined.
• (Pos.1D) Put the appliances near each other and
level them by turning the feet until the shelves fit
with one another.
• (Pos.1C) Turn one of the two plates available
inside the appliances, 180°.
• (Pos.1E) Join the two appliances tightening a
screw M5x40 EN 24017 of the control board of
one of them into the opposite insert.
• (Pos. 1F) Working on the rear side of the
appliances insert the coupling plate of the
equipment into the side slots of the backs.
Tighten this plate with two screws M5 ISO 2009.
• Seal the joint between the two appliances
according to the instructions available in the
package of sealing paste.
Caution! The sealant starts polymerizing from the
outer surface; therefore it is better not to touch the
sealant for three hours after applying it, to avoid
any smear.
5.3 - HYDRAULIC CONNECTION AND DRAIN
CONNECTOR (Installation diagram enclosed)
The equipment must be connected with the water
network permanently according to what stated by
the national standards in force and by EN 1717.
• Connect water inlet pipes "HWI" and "CWI" to the
water network via shut-off valves and proper
mechanical filters. Do not use flexible hoses.
• Inlet pressure must range between 100 and 250
kPa (1 and 2,5 bar).
CAUTION! If water pressure is higher than the value
indicated, use a pressure reducer to avoid any
damage to the equipment.
• The water used to produce steam and cook foods
must be suitable to human consumption, besides
having the following characteristics:
• Total hardness: 0,5 to 5 French degrees;
• Chloride ion (Cl) concentration: ~10 p.p.m.;
• PH higher than 7;
• Electrical conductivity: 50 to 2000 µS/cm at
20°C.
• Before connecting the last piping section with the
cooker, it is better to drain a certain quantity of
water so that pipes are cleared from any iron slags
that could trigger corrosion processes in stainless
sheet steel.
CAUTION! Using water with different technical
characteristics from those specified above will
invalidate the product warranty.
When removing scales, do not use poly-
phosphates because they could compromise
the good operation of the equipment.
• A catch basin connected with a drain pipe must be
installed under the drain cock.
Drain pipes must be of heat-resistant material (up
to 100 °C, at least).

5.4 - ELECTRICAL CONNECTION

(Wiring diagram enclosed)
The connection with the mains must comply with
the standards in force.
• Before connecting the equipment with a power
supply, make sure that the voltage and frequency
of the power supply unit correspond to the
operational data indicated on the data plate. When
the equipment is working, the deviation of the
supply voltage from the rated voltage must not
exceed ± 10%.
• When the equipment is connected directly with the
mains, it must also be provided with a device
ensuring the disconnection from the mains, with an
opening distance of its contacts that enables its
total disconnection in the conditions of overvoltage
category III, according to the installation standards.
This breaker must always be accessible after the
equipment has been installed.
• The equipment is supplied without power cord. The
characteristics of the flexible cable for the
connection with the mains must not be lower than
those of the type with rubber insulation H05RN-F,
its nominal section must be that indicated in Table
3; moreover this cable must be protected by a tube
of metal or of rigid plastic. When the power cord is
damaged, it must be replaced by a skilled engineer
so that any risk can be avoided.
• The equipment must absoluteley be connected with
an efficient earthing jack. At this purpose, the
earthing wire must be connected with the terminal
marked by symbol
terminal strip.
• Furthermore the equipment must be connected
with an equipotential system. This connection must
be carried out through the setscrew marked by
symbol . The equipotential wire must have a
section of 10 mm².
• The earthing and equipotential systems must
comply with the standards in force and they have to
be checked periodically.
The manufacturer declines any responsibility in
case of non compliance with these standards of
accident prevention.
5.4.1- Installing
equipotential connection (Fig. 3)
• The access to the terminal strip for the connection
19
DOC. NO. 5958 9AY00
Edition 1 -
, available in the connection
the power cord and
01.2013
the