10/2007 - Art. Nr. 13 017 700B
6
Installation
Gas and electrical connection
Electrical connection
The electrical characteristics such as
voltage, frequency, power, are
mentioned on the identification plate.
Minimum conductor section: 1.5mm²
Delayed-action minimum protection
device: 6.3A
Refer to the wiring diagrams for the
electrical connections:
- diagram enclosed with the burner
- diagram screen printed on socket 7P
- diagram screen printed on socket 4P
for the controller thermostat.
It must be possible to isolate the
burner from the mains supply
using an all-pole isolator that
complies with present standards.
The burner and the heat generator
are interconnected by a 7-pin
connector. The cables connected
to this connector must have a
diameter between 8.3 and 11 mm.
The gas manifold is connected through
prewired connectors.
• Connect electrical plate standby points
on valve.
• Secure the cables using the clamps
supplied.
Optional :
External connection :
- of an alarm between S3 and N
- of one (or more) hour meter between
B4 and N to totals the operating hours,
and between B5 and N to count the
operating hours at nominal flow rate
(for 2-stage burners only).
Gas connection
Connection of the gas distribution
system to gas manifold must be
performed by a technician.
Pipe section must be calculated so that
load loss does not exceed 5% of
distribution pressure.
The quarter-turn hand-operated valve
(not supplied) must be mounted
upstream and as close as possible to the
gas manifold.
Threaded fittings used must comply with
current standards (tapered external
thread, parallel internal thread) and all
threads rendered leak-proof.
This type of assembly is not removable.
Allow enough space for access to set
the gas pressure switch.
Pipes must be drained upstream of the
quarter-turn hand-operated valve.
Connections performed in situ must be
leak-tested using foam designed for this
purpose.
No leak should be found.
Содержание NC12 GX107/8
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