Preparing For Extended Periods Of Shut-Down; Maintenance - Riello Condexa PRO NA 75P Installation, Operation And Service Manual

− Select "Mode" with the ▲ / ▼ buttons, and confirm with ●
button. Select "System" mode and confirm.
Holiday Settings
" "
Mode
" "
Holiday Setpoint
" "
Begin Date
" "
End Date
" "
− Select "Holiday Setpoint" with the ▲ / ▼ buttons, and con-
firm with ● button.
− Select "Antifreeze" holiday setpoint and confirm.
Holiday Settings
" "
Mode
" "
Holiday Setpoint
" "
Begin Date
" "
End Date
" "

4.13 Preparing for extended periods of shut-down

The following operations shall be necessary if the Condexa PRO NA
modular system is not used for a long period of time:
− turn the main switch of the thermal modules and the main
system switch to "off"
− Close the fuel and water valves for the heating and domes-
tic hot water system.
9
WARNING: Empty the central heating and domestic system if
there is a danger of freezing.
System
" "
Comfort
" "
Saturday 01-08-2015
" "
Saturday 01-08-2015
" "
System
" "
Anti Fr
" "
Saturday 01-08-2015
" "
Saturday 01-08-2015
" "
87

4.14 Maintenance

It is required to perform a maintenance and cleaning of the device
at least once a year.
9
WARNING: Failure to provide annual maintenance will void the
warranty.
This operation, carried out by a qualified service agency or gas
supplier, is necessary to monitor and ensure that the flue pipes
inside and outside of the device, the fan, the pressure relief
valves, the condensate removal devices, the water drainage tubes
and all the measurement and control devices are in perfect work-
ing order.
Once a year (or every 2000 operating hours) inspect and replace all
the sealing elements of the following components: combustion
head, burner and blower flange, spark plugs, inspection window,
exhaust flue circuit, condensation discharge system and exhaust
of all combustion products.
Time interval
Annually
Annually
Annually
Annually
Annually
Monthly (follow local, state,
federal or local authority hav-
ing jurisdiction guidelines)
Every two months
Every two months
Every six months
End of heating season
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
Annually *
(*) Annually or every 2000 hours. Whichever occurs first.
COMMISSIONING AND MAINTENANCE
Maintenance
Verify the cleanliness of the
area around the boiler
Check the pressure of the hy-
draulic system
Check vent piping and verify if
leaks are present
Check air piping and verify if
leaks are present
Check relief valve
Verify the condensate dis-
charge system
Test low water cut off
Verify the reset button of low
water cut off
Check all piping (gas and wa-
ter) for leaks
Shut off the boiler
Combustion test
Verify condition of flue and air
system (including Venturi and
fan)
Check ignition electrode
Cleaning the combustion
chamber (including the burner
tube)
Clean condensate discharge
Safety block check, modulation
range check, gas valve closing
after burner stop
Check control parameters
Check for gas piping leak
Check wiring and connection
Verify startup
Verify the flame
Check relief valve
Inspect the burner gasket