Unit Controls
DISPLAY/PRINT KEYS
The Display/Print keys allow the user to retrieve sys- tem and unit information that is useful for monitoring chiller operation, diagnosing potential problems, trouble- shooting, and commissioning the chiller.
System and unit information, unit options, setpoints, and scheduling can also be printed out with the use of a printer. Both
OPER DATA Key
The OPER DATA key gives the user access to unit and system operating parameters. When the OPER DATA key is pressed, system parameters will be displayed and remain on the display until another key is pressed. After pressing the OPER DATA key, the various operat- ing data screens can be scrolled through by using the UP and DOWN arrow keys located under the “ENTRY” section.
00067VIP
With the “UNIT TYPE” programmed as a liquid chiller (under the Options key), the following is a list of operat- ing data screens in the order that they are displayed:
L C H L T | = | 4 | 6 | . | 2 | ° | F |
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R C H L T | = | 5 | 7 | . | 4 | ° | F | ° |
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This display shows chilled leaving and return liquid tem- peratures. The minimum limit on the display for these parameters are 9.2°F
A M B I E N T A I R T E M P
=8 7 . 5 ° F
This display shows the ambient air temperature. The minimum limit on the display is 0.4°F
66 | YORK INTERNATIONAL |
