York Millennium YDAS 410, Установка, эксплуатация и обслуживание

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FORM 201.10-NM4
99
YORK INTERNATIONAL
After completing the system data for the master sec-
tion, pressing Enter again gives the following message:
Pressing the Enter key will now scroll through the sys-
tem data for System 3.
At the end of this sequence, the displays scroll back to the
request to select a safety shutdown number to display.
YDAS MODELS:
YDAS models are constructed in two sections. One
section contains numbers 1 and 2 refrigerant systems
and their associated evaporator. This section is called
the Master section. The second section contains num-
bers 3 and 4 refrigerant systems and their associated
evaporator. This is called the
Subordinate
section.
Both sec-tions have their own control panel, but only
the master panel is fitted with a keypad and display.
When the History key is pressed, the following mes-
sage will appear:
To select a Safety Shutdown, press the appropriate key
on the numeric keypad and then press Enter. Remem-
ber that the most recent fault information is stored as
shutdown 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, Mas-
ter Section Individual System Data, and
Subordinate
Section Individual System Data as follows:
Common Data:
The next message to appear is shown below, indicating
that the Enter key can now be used to scroll the next set
of displays which deal with common chiller data.
The common chiller data messages and their mean-
ings are as follows:
This message advises the time and date of the fault.
These messages indicate the nature of the chiller or
system fault which has occurred; in this case, a system
fault of excessive oil pressure differential occurred on
System 1.
This message indicates the Return Water Temperature
at the time of the fault.
These two messages indicated the chilled water tem-
peratures leaving the Master Section evaporator (1) and
the
Subordinate
Section evaporator (2) at the time of
the fault.
This message indicates the mixed chilled water tem-
perature leaving the chiller at the time of the fault. This
is measured after the flows from the two evaporators
has been combined and mixed.
This display shows the Low Water Cutout (Leaving)
programmed at the time of the fault.
This message shows the Cooling Range (Control
Range) programmed at the time of the fault.
P R E S S E N T E R T O
D I S P L A Y
D A T A
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 )
P R E S S E N T E R T O
D I S P L A Y C O M M O N D A T A
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
S Y S 3 N O F A U L T S
S Y S 4 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 1
= 4 4 . 6 ° F
L E A V I N G W A T E R T E M P 2
= 4 4 . 2 ° F
M I X E D W A T E R T E M P
4 4 . 4 ° F
C O O L I N G R A N G E
4 2 . 0 T O 4 6 . 0 ° F
L O W W A T E R C U T O U T
3 6 . 0 ° F