Service And Maintenance; Adjustments - Joannes CIPREA 20 S Instructions D'utilisation, D'installation Et D'entretien

CIPREA 20 S

3. SERVICE AND MAINTENANCE

All adjustment, conversion, system start-up and maintenance operations described hereunder must be carried out
solely by Qualified Personnel such as the personnel of the Local After-Sales Technical Service.
JOANNES declines any responsibility for damage or physical injury caused by unqualified and unauthorized persons
tampering with the device.
The first ignition is free of charge and must be requested as directed on the sticker on the boiler.

3.1 Adjustments

Gas supply conversion
The unit can function with either Natural Gas or LPG and is factory-set for use with one of the two gases, as clearly
shown on the packing and on the unit's dataplate. Whenever a different gas to that for which the unit is preset has
to be used, a conversion kit will be required, proceeding as follows:
1. Replace the nozzles at the main burner, inserting the nozzles specified in the technical data table in chap. 4, ac-
cording to the type of gas used
2. Adjust the burner minimum and maximum pressures (ref. relevant paragraph), setting the values given in the tech-
nical data chart for the type of gas used.
3. Edit the parameter for the type of gas:
- turn the boiler onto standby
- select RESET for 10 seconds: LEDs blinking fast for two seconds
- select WINTER: red LED on
- select RESET for 1 second
- select WINTER: yellow LED on
- select RESET for 5 seconds: LEDs blinking fast for two seconds
- select WINTER
- turn the hot water knob (ref. 2 - fig 1) onto minimum (for Natural Gas operation) or onto maximum (for LPG opera-
tion)
- red LED blinking (LPG operation) or red LED off (Natural Gas operation)
- select RESET for 5 seconds: LEDs blinking fast for two seconds
- select WINTER: yellow LED and red LED on
- turn the heating knob (ref. 1 - fig 1) onto minimum and then onto maximum
- the boiler will go back onto standby
- turn the knobs onto the set temperatures.
4. Apply the sticker contained in the conversion kit, near the dataplate as proof of the conversion.
Turning on TEST mode
Select TEST.
TEST mode is turned off by selecting another mode or automatically after 15 minutes.
Adjusting burner pressure
Since this unit has flame modulation, there are two fixed pressure settings: the minimum and maximum, which must
be as stated in the technical data chart according to the type of gas.
• Connect a suitable pressure gauge to pressure point "B" downstream from the gas valve.
• Disconnect the pressure compensation tube "H" and take off the protective cap "D".
• Run the boiler in TEST mode (selector on TEST):
• Adjust the maximum pressure with the screw "G", clockwise to increase it and anticlockwise to decrease it.
• Disconnect one of the two faston connectors from the modureg "C" on the gas valve.
• Adjust the minimum pressure with the screw "E", clockwise to decrease it and anticlockwise to increase it.
• Reconnect the faston connector disconnected from the modureg on the gas valve.
Cod. 3540D961 - 06/2007 (Rev. 00)
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