24
To execute the manual defrosting command, select menu 2 as described in the Para-
graph "how to access the menus", then proceed as follows:
The display shows: "2." press the knob to access the menu. The display initially
1.
shows item "2. 20".
Turn the knob clockwise to display "2. 22".
2.
Press the knob to display the manual defrosting flashing request: "deFr".
3.
Press the knob again to execute the command. The manual defrosting request
4.
stops flashing, and the again display shows "2. 22". The manual defrosting opera-
tion has been performed (if the appropriate requirements are satisfied).
To quit the menu, turn the knob clockwise until the "2. E" is displayed. Now press
5.
the knob to return to menu selection: "2.".
To exit the menu selection and return to the normal visualisation of the parameters
6.
of the appliance, turn the knob clockwise until "E" displays; press the knob to quit.
At this point, if the display does not signal any other operating codes, put away the spe-
cial key, replace the electrical panel cover and refit the front panel.
4�4
oPeRAtInG settInGs
The operations described require basic knowledge of the plant installed and of the S61
controller fitted to the appliance; before proceeding, you must acquire this informa tion,
Paragraph 4.2 ON-BOARD ELECTRONICS
→
19.
At the moment of installation, the appliance is set up by the installation technician for
best operation according to the type of plant installed. Subsequently it is possible to
modify the operating parameters, but this is not recommended if not in possession of
the necessary knowledge and experience in order to do so. In any case, to set new op-
erating parameters for the appliance see Paragraph 5.8 PROGRAMMING OF HYDRAULIC
PARAMETERS
→
37.
4�5
PRoLonGed PeRIods of dIsUse
When the appliance is to be inactive for a long period, it is necessary to disconnect the
appliance before the period of disuse and reconnect it before it is used again.
To carry out these operations, contact a reputable hydraulic system installation
technician.
disconnecting the appliance
You will need: the appliance connected to the power/gas supply. Necessary equip ment
and materials.
If the appliance is in operation, switch it off with the CCP (if present) or DDC (if
1.
present), or the consent switch and wait for the shutdown cycle to terminate com-
pletely (approximately 7 minutes).
Disconnect the appliance from the power supply, putting the external disconnec-
2.
tion switch in the OFF position (see GS in Figure 6.7 Electrical wiring diagram
→
47)
provided in the appropriate panel by the installation technician.
Close the gas valve.
3.
Do not leave the appliance connected to power and gas supply if it is expected to remain
inactive for a long period.
