System Manager; Commissioning - Riello Condexa PRO NA 75P Installation, Operation And Service Manual

SYSTEM MANAGER

7 SYSTEM MANAGER

7.1 Commissioning

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WARNING: The appliance must be maintained and adjusted at
least once a year by a qualified service agency in compliance
with all applicable National and Local codes.
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WARNING: Incorrect maintenance or adjustment may damage
the appliance and cause damage to people or create a haz-
ard.
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DANGER: The unqualified personnel is forbidden from open-
ing and removing the appliance's casing. These activities must
be carried out only by a qualified installer, service agency, or
gas supplier.
The Condexa PRO NA must be commissioned by a qualified
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installer, service agency or gas supplier, after which step the ap-
pliance may operate automatically.
However, the system manager may be required to restart the ap-
pliance independently, without involving a qualified installer,
service agency or gas supplier; for example after a long period of
absence.
To do so, perform the following checks and operations:
− Check that the gas shutoff valve and the supply/return
shutoff valves are open
− While the system is still cold, check the working pressure in
the central heating circuit is over 14.5 psi (1 bar) but below
the maximum limit specified for the boiler and the pres-
sure relief valve rating
− Adjust the room thermostats for the high and low tem-
perature zones to the required temperature (~68 °F/20 °C)
or, if the systems are equipped with a programmable ther-
mostat, make sure it is on and adjusted (~68 °F/20 °C)
− Switch the system's power switch to the ON position and
the boiler's master switch to (I).
The appliance will go through the begin it's sequence of operation
and, after starting, it will continue to operate until set tempera-
tures are achieved.
The burner will then switch off and on automatically to maintain
the set temperature automatically.
In the event of ignition or operation faults, the display will show a
numeric error code that will enable the user to interpret the pos-
sible cause as shown in section "Error List".
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NOTE: In the event of a hard lock-out error, press the "RESET"
button and wait for the boiler to restart.
WARNING: If the error code persists, the boiler should never be
reset more than three times without contacting a qualified ser-
vice agency or the gas supplier to service the unit. Consistently re-
setting the unit without having it properly serviced by a qualified
service agency or gas supplier could result in substantial property
damage, severe injury or death.
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SYSTEM MANAGER
System manager