Gas/Electrical Connections - Cuenod C 75 Instrucciones De Montaje

Installation
Gas / electrical connections
Gas connection
Connection of the gas distribution
system to gas manifold must be
performed by a qualified technician.
Pipe section must be calculated so that
load loss does not exceed 5% of
distribution pressure.
External filter must be horizontally
mounted before the valve with a clean
tube and the cover placed in a vertical
position to guarantee maintenance.
Any other assembly is forbidden.
The quarter-turn hand-operated valve
(not supplied) must be mounted
upstream and as near as possible to
the external filter or valve (pocket filter).
Threaded fittings used must comply
with current standards (tapered
external thread, parallel internal thread)
and all threads rendered leak-proof.
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.
Gas pressure take-off connection
· Remove stops pF and pL located
on strut.
· Fit, with a certified product, both
linked connections with pressure
tubes pF and pL.
· Link valve and strut with
corresponding pF and pL tubes for
a right-hand gas manifold or other
" left "-marked pF and pL tubes for
a left-hand location.
· Check for possible leaks.
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Electrical connection
Electrical fittings and connections must
meet required standards. Earth must
be connected and tested.
See electrical diagram in order to
connect burner and regulator.
On delivery, the burner must be
powered :
for control circuit :
–
230V-50Hz single-phase with
earthed neutral wire;
for power circuit :
–
400V-50Hz triphase
The fan motor starts up automatically.
Three-phase 230V-50Hz operation
requires the following : changing motor
coupling, as well as contactor thermal
relays and using a 630VA isolating
transformer on control circuit (not
supplied, please consult us).
Please consult us for other voltages
and frequencies.
The connections on the burner
terminal board must be made using
the cable glands.
Leave a long enough length of wire to
allow the furnace door to be opened or
maintenance work to be carried out.
06/2006 - Art. Nr. 13 013 497B
Gas manifold
· Connect electrical plate standby
points on valve.