FRIULAIR PURESTREAM CHILLERS CWE-Q 041, Use And Maintenance Manual

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7425MUM753 Model: CWE-Q - Use and Maintenance Manual Rev. 15
5.8 P
ARAMETERS CHANGING
NOTE The parameters setting can only be changed at a higher level of programming of the
electronic control: please request the password by contacting our company.
After contact our company, follow this procedure:
•
Starting from the main screen press for 4 seconds;
•
Use the key to reach the
User
and press ;
•
Use or keys to scroll the list;
•
Press to reach the label
PDd1
;
• Then press and insert using or keys the password 1 ;
•
Press to confirm;
•
The complete list of parameter will be available for change;
•
Press to return to the main screen.
5.9 S
ETTING THE DATE AND TIME
Follow this procedure:
•
Starting from the main screen press for 4 seconds;
•
Use the key to reach the
rtc
menu;
• Press and using or keys insert the date and time;
•
Press to confirm;
•
Press to return to the main screen.
5.10 L
OW WATER TEMPERATURES
(<32°F//0°C)
If it was not anticipated that the chiller unit offered was to produce water at
temperatures close to 0°C//32°F, or below, you should contact our company.
To achieve temperatures that are negative, or near zero, it is necessary to use anti-
freeze (ethylene glycol) in percentages that depend on the desired temperature; it is
also necessary to change the calibration of safety devices.
NOTE
The safety devices setting can only be changed at a higher level of programming of
the electronic control: please request the password by contacting our company.
CWE-Q units can operate with water and ethylene glycol mixtures up to a
concentration of 40%.
In case of RH and/or RA1 / RA2 / RA3 (HEATING or ANTI-FREEZE RESISTORS)
option installed on the machine, check that the Chiller setpoint does not conflict with
the one chosen for this option. Contact our Service Assistance to request
instructions.
1 Contact our company.