120
YORK INTERNATIONAL
Information available using the Operating Data key is
described in the following sections. In example displays
" # " is used to indicate system number where appropri-
ate.
4.3 OPERATING DATA -
LOCAL DISPLAY MESSAGES
YCAS 2-System Models:
When the Operating Data key is pressed, the following
message appears:
Repetitively pressing the
áâ
áâ
áâ
áâ
áâ
keys will scroll through
the following Common (whole chiller) Data and indi-
vidual System Data information displays.
Common Data:
This message shows the time remaining on the Load
Timer and the Unload Timer. These Timers constantly
recycle and are used in conjunction with “rate control”
and “temperature deviation from setpoint” to determine
when loading should occur.
4. PRINT KEYS
4.1 GENERAL
The Print keys provide access to two sets of informa-
tion either locally on the panel display or, if an optional
printer is connected, remotely as hard copy printouts.
The Operating Data (Oper Data) key provides a real-
time list of system operating data and programmed set-
tings. The History key provides a comprehensive list of
operating data and programmed settings "at the instant
of fault” on each of the last six faults (local display) or
three faults (remote printout) which occurred on the
chiller.
4.2 OPER DATA KEY
If a remote printer is not connected, pressing the Oper-
ating Data key allows the user to scroll through infor-
mation, on the 40 character display, which is not directly
available from the Display keys on the panel.
If a remote printer is connected, pressing the Operating
Data key causes a snapshot to be taken of system oper-
ating conditions and of the user programming selections.
The data is stored in temporary memory, then transmit-
ted from the microprocessor to the remote printer. As
the data is transmitted it is erased from the memory.
29023A
O P E R A T I N G
D A T A
D I S P L A Y S
L O A D
T I M E R
1 0
S E C
U N L O A D
T I M E R
0
S E C
PRINT
KEYS
Micropanel
Summary of Contents for MILLENNIUM YCAS
Page 53: ...53 YORK INTERNATIONAL FORM 201 18 NM2 WIRING DIAGRAM ACROSS THE LINE START 7...
Page 54: ...54 YORK INTERNATIONAL FIG 12 CONTINUED ELEMENTARY DIAGRAM Technical Data...
Page 59: ...59 YORK INTERNATIONAL FORM 201 18 NM2 WIRING DIAGRAM WYE DELTA START LD03229 FIG 15 CONT D 7...
Page 60: ...60 YORK INTERNATIONAL FIG 15 CONTINUED ELEMENTARY DIAGRAM Technical Data...
Page 62: ...62 YORK INTERNATIONAL FIG 16 POWER PANEL FRONT INSIDE VIEW WYE DELTA START Technical Data...
Page 68: ...68 YORK INTERNATIONAL FIG 24 DETAIL B Technical Data...
