30
YORK INTERNATIONAL
GENERAL
Pressing the STATUS key will enable the operator to
determine current chiller operating status as a whole and
as individual systems. The messages displayed will in-
clude running status, cooling demand, fault status, ex-
ternal cycling device status, and anti-recycle timer sta-
tus. The display will be a single message relating to the
highest priority message as determined by the micro.
Status messages fall into the categories of General and
Fault Status with each of the categories discussed be-
low.
GENERAL STATUS MESSAGE
Each of the general status messages with a description
of its meaning will follow. In the case of messages which
apply to individual systems, SYS 1 and SYS 2 mes-
sages will both be displayed and may be different. Xs in
the sample displays indicate numerical values will
appear in actual displays.
This message informs the operator that the UNIT
switch on the Control Panel is in the OFF position, which
will not allow the chiller to run.
The DAILY SCHEDULE SHUTDOWN message indi-
cates that the schedule programmed into the CLOCK
SET SCHEDULE/HOLIDAY is keeping the chiller from
running.
Run Permissive is an indicator that an external cycling
contact (i.e. flow switch) connected to terminals 13 and
14 is open, or a system switch(es) on the Microproces-
sor Board is in the OFF position. Whenever the contact
is open or a switch is OFF, the NO RUN PERM will be
displayed.
This message informs the operator that the chilled liquid
temperature is below the point (determined by the
setpoint and control range) that the micro will bring the
lead system on, or that the micro has not loaded the
system far enough into the loading sequence to be ready
to bring the lag system ON. The lag system will display
this message until the loading sequence is ready for the
lag system to start (TEMPERATURE DEMAND in the
OPER DATA displays must be 5 or above before cool-
ing load is established for the lag system to run).
The COMP RUNNING message indicates that the re-
spective compressor is running due to demand.
U N I T
S W I T C H
I S
I N
T H E
O F F
P O S I T I O N
D A I L Y
S C H E D U L E
S H U T D O W N
S Y S # 1
N O
R U N
P E R M
S Y S # 2
N O
R U N
P E R M
S Y S # 1
N O
C O O L
L O A D
S Y S # 2
N O
C O O L
L O A D
26572A(D)
STATUS
KEY
STATUS KEY
S Y S # 1
C O M P
R U N N I N G
S Y S # 2
C O M P
R U N N I N G
Содержание YCAJ44HE8
Страница 16: ...16 YORK INTERNATIONAL WIRING DIAGRAMS LD02165 FIG 5 ELEMENTARY DIAGRAM...
Страница 17: ...FORM 150 60 NM3 17 YORK INTERNATIONAL FIG 5 ELEMENTARY DIAGRAM Cont d LD02166...
Страница 20: ...20 YORK INTERNATIONAL CONNECTION DIAGRAM ELECTRICAL BOX FIG 7 CONNECTION DIAGRAM LD02171...
Страница 21: ...FORM 150 60 NM3 21 YORK INTERNATIONAL FIG 7 CONNECTION DIAGRAM Cont d LD02172...