Foster BC 21, Service Manual

4

Pre Chill 

This program is used to Pre Chill the cabinet prior to the first cycle.

This is done with the  

Blast Chiller empty and is a short time based program of about 20 minutes.  
It is generally recognised as the correct method of preparing for a blast chill cycle.  
The program is selected by rotating the dial until the display shows, press and release the dial 
to start the program. 

Defrost.

Defrosting is not normally required but if there is an ice build up on the coil inside the cabinet a manual defrost can be 
selected. Rotate the dial until the Defrost screen, below left, is displayed.  
Press and release the dial to start the defrost.  
During defrost the screens will alternate between the middle and right hand screens. 
Defrost will last 20 minutes and when completed the alarm will sound. Press the dial to acknowledged or if not wait until it 
comes to the end of the alarm period, the alarm will stop and the display will revert to the previous screen. 

 
 
 
 
 
 
 
 
 
Further Operational Features. 

Chill time adjustment. (All programs excluding Professional 1, 2 or 3)

Whilst in the pre-programmed selection screen press and hold the dial for 2 seconds, the information screen will be 
displayed, below left. Press and release the dial to move to the time set, see below right. Rotate the dial clockwise to 
increase the time, anticlockwise to decrease. Once the time has been selected, press and release the dial and ‘CHILL 
TEMP’ will be highlighted. 
On completion press and hold the dial for 2 seconds to return to the program selection screen, to continue press and 
release the dial for the program to start.  
On completion of the program the time changes will revert to the default settings. 
 
 
 
 
 
 
 

Chill / Hold temperature adjustments. (Professional 1, 2 or 3 only) 

Professional 1, 2 and 3, if configured, are programs that can be used to tailor the chill time and temperature to suit 
specific product requirements. 
Adjust the ‘CHILL TIME’ as above. With the ‘CHILL TEMP’ highlighted, below second from the left, press and release the 
dial to move to the temp set, below second from the right. Rotate the dial clockwise to increase the time, anticlockwise to 
decrease. Once the time has been selected, press and release the dial and ‘HOLD TEMP’ will be highlighted. Follow the 
procedure for changing chill temp to change the hold temp.  

 
On completion press and hold the dial for 2 seconds to return to the program selection screen, to continue press and 
release the dial for the program to start.  
The chill time and chill / hold temperature adjusted settings are retained for professional 1, 2 and 3 programs and will not 
revert to the default.