Commissioning; Preliminary Checks - elco ES08.5200 G/F-VT Betriebsanleitung

Commissioning

Preliminary checks/leakage test
Setting the air pressure switch
Commissioning the burner also involves
simultaneous installation by the fitter or
his representative; only they can
guarantee the boiler room complies with
currently accepted practices and
regulations in force.
The fitter must first be in possession of a
"certificate of gas fuel conformity" issued
either by the approved body or
distributor and also have tested the
pipes upstream of the quarter-turn hand-
operated valve for leaks and drained it.

Preliminary checks

• Check the following:
- nominal available voltage and
electrical frequency and compare
them with values found on
identification plate,
- polarity between phase and neutral
- the previously tested earth wire
connection,
- lack of potential between neutral and
earth,
- the direction of rotation of the
motors.
- the thermal relays, in manual
position (H) only and the current
strength setting.
• Turn off the power supply.
• Check absence of voltage.
• Close the fuel valve.
• Read the service instructions provided
by the generator and regulator
manufacturers.
• Check the following:
- that the boiler is full of pressurised
water,
- that the circulator or circulators
work,
- that the mixer valve or valves are
open,
- that the combustion air supply and
combustion product exhaust duct
are operational and compatible with
the nominal output of the burner and
the fuels,
- that the draught regulator on the
smoke exhaust duct is in place and
working properly,
- that the electrical protection
equipment outside the burner is
present, calibrated and set,
- the boiler regulator circuit setting.
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Leak check
• Connect a pressure gauge to the
pressure tap upstream of the gas
train.
• Open the quarter-turn hand-operated
valve.
• Check the supply pressure and its
stability over time.
• Check for the absence of leaks in the
gas train connections and the exterior
filter using foam designed for this
purpose.
No leakage should be detected.
• If necessary, vent the piping
downstream of the quarter-turn hand-
operated valve.
• Stop venting, remove the pressure
gauge, and close the pressure tap.
05/2009 - Art. Nr. 4200 1017 4400A
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Setting the air pressure switch
• Remove the transparent cover.
The unit includes a index and
graduated mobile disc.
• Provisionally set the pressure
controller to the minimum value shown
on the graduated disc.
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