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Operating Hours
Start Counter
Accumulated running hours and starts on each
compressor is displayed. The hours counter for an
individual system count to a total of 99,999 hours before
rollover. A total of 99,999 starts can be logged on a
system before the start counter will rollover.
H R S
1 =
1 4 3 , 2
S T R
1 =
1 1 7 , 2
The numbers "1" and "2" on the display indicate
compressor #1 and compressor #2.
These counters are zeroed at the factory, but may
indicate run time and number of starts logged during
factory testing prior to shipment.
Options
The OPTIONS key provides a display of options which
have been selected by the user. These options are
selected by the S1 Dip Switch on the Microprocessor
Board (Fig. 22). Proper programming of the switch is
important during the commissioning of the chiller. The
OPTIONS display allows a means of verifying the Dip
Switch positions without looking at or handling the
TABLE 1 – SWITCH POSITION AND DISPLAY
DISPLAY/
SWITCH "OPEN" MESSAGE
SWITCH
1
2
L O C A L
3
T H E R M A L
4
E N G L I S H
5
A C R O S S - T H E - L I N E
6
M O T O R
7
L E A D
R E F R I G E R A N T
8
YORK INTERNATIONAL
OPERATING HRS.
START COUNTER
=
3 8 2
=
1 1 2
OPTIONS
W A T E R
C O O L I N G
S T A N D A R D
A M B I E N T
C O N T R O L
M O D E
E X P A N S I O N
V A L V E S
U N I T S
R E A D O U T
S T A R T I N G
M A N U A L
/
L A G
T Y P E
R 1 3 4 A
Microprocessor Board. It also eliminates visual
inspection of the sometimes difficult to determine Dip
Switch position.
When the OPTIONS key is pressed, the following
message will first be displayed for 3 seconds:
T H E
F O L L O W I N G
A R E
P R O G R A M M E D
Eight (8) Option Messages will then follow. Each will be
displayed for 3 seconds before the next display is
automatically indexed. When all messages are
displayed, the display message will automatically change
to show a chiller STATUS message, just as if the
STATUS key was pressed.
Refer to Table 1 for a list of the displays and the
corresponding switch positions in the order they appear.
Two possible messages may appear for each of the eight
messages depending on the Dip Switch position.
A detailed explanation of the meaning of each message
and a guide to programming the associated switch is
provided on page 80.
Fig. 22 shows the location and verification of switch
positioning of S1.
SWITCH "CLOSED" MESSAGE
B R I N E
C O O L I N G
L O W
A M B I E N T
C O N T R O L
R E M O T E
M O D E
T H E R M A L
V A L V E S
S I
R E A D O U T
W Y E
M O T O R
A U T O M A T I C
L E A D
R E F R I G E R A N T
R 2 2
FORM 201.10-NM1
C O N T R O L
E X P A N S I O N
U N I T S
D E L T A
S T A R T I N G
/
L A G
T Y P E
79
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