Gas Connection; Electrical Connection - Cuenod C 280 B 517/8 Manual De Utilización

Installation
Gas and electrical connections

Gas connection

Connecting the gas distribution system
to the gas train must be carried out by a
skilled technician.
The pipe section must be calculated, so
that load losses do not exceed 5% of
distribution pressure.
The external filter (C 280, 285) must be
fitted horizontally on the valve with a
clean tube and the cover placed in a
vertical position to allow for
maintenance.
Any other type of assembly is
prohibited.
The ball valve (not supplied) must be
mounted upstream and as close as
possible to the external filter or to the
valve (pocket filter).
Threaded couplings used should
comply with current standards: tapered
external thread, parallel internal thread,
with tightness secured in the thread.
Enough space should be provided for
access to the setting of the gas
pressure switch.
Piping must be drained upstream of ball
valve. Connections carried out in sit
must be tested for leaks using foam
designed for that purpose.
No leakage should be detected.

Electrical connection

Electrical fittings and connections
should comply with the current
standards . Earth must be connected
and tested. See electrical diagram
when connecting the burner and the
regulator.
The burner is supplied for a
three-phase electrical voltage 400V -
50Hz with neutral and earth.
The ventilation motor starts up
automatically. A variable frequency
regulator can be fitted as an extra
option.
The three-phase operation 230V - 50Hz
requires : changing the coupling of the
motors and of the thermal relays of the
contractors (C 380 and 430), and using
a 630 VA insulation transformer on the
control circuit (not supplied).
For other voltages and frequencies,
please contact us.
11/2003 - Art. Nr. 13 013 506A
Electrical connections
1) burner
Built-in electrical cabinet
–
· Use stuffing boxes in order to
secure the required level of
protection.
All the links, power and control, are
connected to the terminal block of the
cabinet.
Provide wire in sufficient length to
secure the gyration of the burner body
according to the assembly.
· Check and adjust the calibre of the
contractors and thermal relays and
the wires section according to the
characteristics of the motor and the
available voltage.
Wiring is not supplied.
Detached electrical cabinet:
–
That cabinet can be installed:
– either against a wall
– or on a floor-mounted sub-frame.
All the links, power and control are
connected between the cabinet terminal
block and the cabinet terminal block
and the terminal block of the coupling
case on the body of the burner.
The other assembly conditions are
similar to those of the built-in cabinet
2) of the gas train
· Connect the plugs pending to the
valve :
– either on the cabinet,
– or on the coupling case
3) of the fuel oil motor-pump unit
· Connect the power circuit of the
motor (hanging wires) to the plugs
on the fuel oil valves
· Check the rotary direction.
EN
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