Final Checks; Maintenance - Riello RS 64 MZ Instrucciones De Instalación, Funcionamiento Y Mantenimiento

FLAME INSPECTION WINDOW
(A)

FINAL CHECKS

• Disconnect one of the wires on the minimum
gas pressure switch.
• Open remote control device TL.
• Open remote control device TS:
the burner must stop.
• Detach the air feed pipe to the pressure
switch.
• Disconnect the ionisation probe lead:
the burner must lock out.
• Make sure that the mechanical locking sys-
tems on the various adjustment devices are
fully tightened.

MAINTENANCE

The burner requires periodic maintenance
carried out by a qualified and authorised
technician in conformity with legislation and
local standards.
Periodic maintenance is essential for the
reliability of the burner, avoiding the excessive
consumption of fuel and consequent pollution.
D484
Before carrying out any cleaning or control,
always switch off the electrical supply to the
burner, using the main switch of the system.
Combustion
The optimum calibration of the burner requires
an analysis of the flue gases. Significant differ-
ences with respect to the previous measure-
ments indicate the points where more care
should be exercised during maintenance.
Gas leaks
Make sure that there are no gas leaks on the
pipework between the gas meter and the burner.
Gas filter
Change the gas filter when it is dirty.
Flame inspection window
Clean the flame inspection window (A).
Combustion head
Open the burner and make sure that all compo-
nents of the combustion head are in good condi-
tion, not deformed by the high temperatures,
free of impurities from the surroundings and cor-
rectly positioned. If in doubt, disassemble the
elbow fitting.
Servomotor
Disengage the cam 4)(A)p.11 from servomotor,
by turning slot 2)(A)p.11 through 90° and turn it
backward and forward by hand to make sure it is
free moving. Now engage cam 4)(A)p.11 again.
Burner
Check for excess wear or loose screws in the
mechanisms controlling the air gate valve and
the gas butterfly valve. Also make sure that the
screws securing the electrical leads in the
burner terminal strip are fully tightened.
Clean the outside of the burner, taking special
care with the transmission joints and cam
4)(A)p.11.
Combustion
Adjust the burner if the combustion values found
at the beginning of the operation do not comply
with the regulations in force, or at any rate, do
not correspond to good combustion. Use the
appropriate card to record the new combustion
values; they will be useful for subsequent con-
trols.
14
(with burner running)