York Millennium YCAS 316 Installation Operation & Maintenance page 86

R E P R O G R A M
R E F R I G E R A N T
This message indicates that the type of refrigerant
programmed under the PROGRAM key does not match
FAULT STATUS MESSAGES
Thirteen possible fault messages may appear when the
STATUS key is pressed. Whenever a fault message
appears, the safety thresholds on the chiller have been
exceeded and the entire chiller or a single system will be
shut down and locked out. A detailed explanation of the
shutdown thresholds and associated information related
C H I L L E R
L O W W A T E R
S Y S 1 L O W
S Y S 2 L O W
S Y S 1 H I G H
S Y S 2 H I G H
S Y S 1 M T R
S Y S 2 M T R
S Y S 1 P H A S E
S Y S 2 P H A S E
S Y S 1 L O W
S Y S 2 L O W
S Y S 1 H I G H
S Y S 2 H I G H
86
T Y P E O F
T O R U N
F A U L T :
T E M P
C U R R / M P / H P
C U R R / M P / H P
M T R C U R R
M T R C U R R
C U R R U N B A L
C U R R U N B A L
R O T A T I O N
R O T A T I O N
S U C T I O N
S U C T I O N
O I L D I F F
O I L D I F F
the type of refrigerant selected on the S1 dip Switches on
the Microprocessor Board. Selections on the S1 Dip
Switches on the Microprocessor Board can be viewed by
pressing the OPTIONS key (Page 79). The chiller will not
operate until this situation is corrected. Also see page 59
to change the refrigerant type in the PROGRAM mode.
to each fault is covered in the "System Safeties" section.
Chiller shutdown faults will shut the entire chiller down and
lock it out, while system shutdown faults will only shut
down and lock out the affected system (compressor).
A list of the fault messages is shown below:
S Y S 1 H I G H
S Y S 2 H I G H
S Y S 1 H I G H
S Y S 2 H I G H
S Y S 1 H I G H
S Y S 2 H I G H
C H I L L E R
V A C U N D E R
C H I L L E R
L O W A M B I E N T
C H I L L E R
H I G H A M B I E N T
S Y S 1 L O W
S Y S 2 L O W
D S C H P R E S
D S C H P R E S
O I L T E M P
O I L T E M P
D S C H T E M P
D S C H T E M P
F A U L T :
V O L T A G E
F A U L T :
T E M P
F A U L T :
T E M P
O I L D I F F
O I L D I F F
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