York Millennium YCAS 310, Установка, эксплуатация и обслуживание

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FORM 201.10-NM3
85
YORK INTERNATIONAL
If a remote printer is not connected, pressing the His-
tory key allows the operator to locally scroll through
information relating to the stored safety shutdowns on
the 40 character display.
If a remote printer is connected, pressing the History
key will cause data for the last three shutdowns to be
transmitted from the Microprocessor to the remote
printer. The printout will begin with the most recent fault
which occurred. This does not affect the stored data
and as many prints as desired may be taken. See Sec-
tion 4.7 for a HISTORY printout sample.
Samples of local display information for YCAS 2 sys-
tem, YCAS 3 system and YDAS models are as follows:
4.6 FAULT HISTORY DATA–LOCAL DISPLAY MESSAGES
YCAS 2 SYSTEM MODELS:
When the History key is pressed, the following mes-
sage will appear:
To select a Safety Shutdown, press the appropriate key
on the numeric key pad, then press Enter. Remember
that the most recent fault information is stored as shut-
down No. 1.
Repetitively pressing the Enter key now scrolls through
the information available in the Safety Shutdown buffer.
This is divided into Common (whole chiller) Data and
Individual System Data displays as follows:
Common Data:
This message advises the time and date of the fault.
This message indicates the nature of the chiller or sys-
tem fault which occurred. In this case, a system fault of
excessive oil pressure differential on System 1.
This message indicates the Return Water Temperature
at the time of the fault.
This message indicates the Leaving Water Tempera-
ture at the time of fault.
This display shows the Low Water (leaving) Cutout pro-
grammed at the time of the fault.
This message shows the Cooling Range (Control
Range) programmed at the time of the fault.
This display shows the Target temperature programmed
at the time of the fault.
This message indicates the surrounding Ambient Air
Temperature at the time of the fault.
This display shows the Low Ambient Cutout pro-
grammed at the time of the fault.
This display shows the Low Suction Pressure Cutout
programmed at the time of the fault.
This message indicates which system was in the lead
at the time of the fault.
This message shows whether remote or local commu-
nications were selected at the time of the fault.
System Data:
There now follows a sequence of twenty information
displays which are given twice, firstly for system 1, then
for system 2. In each example, # is used to indicate
system number:
This message indicates whether the compressor on
this system was On or Off at the time of the fault.
D I S P L A Y S A F E T Y S H U T -
D O W N N O . 1 ( 1 T O 9 )
S H U T D O W N O C C U R R E D
5 : 5 9 A M 0 1 0 1 9 8
S Y S 1 H I G H O I L D I F F
S Y S 2 N O F A U L T S
R E T U R N W A T E R T E M P
4 9 . 3 ° F
L E A V I N G W A T E R T E M P
4 4 . 6 ° F
L O W W A T E R C U T O U T
3 6 . 0 ° F
C O O L I N G R A N G E
4 2 . 0 T O 4 6 . 0 ° F
T A R G E T T E M P
4 4 . 0 ° F
A M B I E N T A I R T E M P
7 7 . 6 ° F
L O W W A T E R C U T O U T
2 5 . 0 ° F
L O W P R E S S U R E C U T O U T
4 4 P S I G
L E A D S Y S T E M
S Y S 1
L O C A L R E M O T E S E T T I N G
L O C A L
S Y S # C O M P R E S S O R
O N