York YCAQ10, Руководство пользователя, Страница: 14 / 99

YORK INTERNATIONAL
14
LD01778
Leftmost Digit: No letter (Blank) Informs the operator
that the compressor is ready to run or is running.
A – Indicates that the Flow Switch is open, time clock
is telling the system to turn off, or a remote cy-
cling device (EMS, BAS, etc.) is telling the system
to turn off These are devices whose dry contacts
may be connected in series across terminals 3
and 4 of the terminal block in the lower right cor-
ner of the Logic Panel.
c – Shows that the compressor is shut down and cy-
cling on the 2-minute start-up or 10-minute
anti-recycle timer. It will be available for start or will
restart when the 2-minute and 10-minute anti-recycle
timers time out, and demand allows. The “c” code
will disappear as soon as the timers time out.*
F – Indicates that a safety threshold has been ex-
ceeded and the unit is shut down on a Fault. Turn
the Select Data Display to “18” to determine the
reason for shutdown. (See list at right.)
H – Indicates that the compressor is off because cool-
ing demand is not present. The compressor will
start as soon as cooling demand is required. The
H code will override a “c” code.
*Anti-Recycle Timers:
Any time a compressor shuts down for any reason, re-
start cannot occur until the 10-minute anti-recycle timer
has timed out and a minimum of 2 minutes (2-minute
start-up timer) has expired since shutdown.
ex. Anti-recycle timer has 8 min. left at shutdown:
Restart can occur in 8 minutes (Anti-recycle time
greater than 2 min.)
ex. Anti-recycle timer has 1 min. left at shutdown:
Restart can occur in 2 min. (Anti-recycle time less
than 2 min.)
ex. Anti-recycle timer has timed out at shutdown:
Restart can occur in 2 min. (Anti-recycle time less
than 2 min.)
ex. Power failure has occured:
Restart can occur 2 min. after the return of power
(Anti-recycle time less than 2 min.)
FIG. 5 – DATA DISPLAY
If “Select Data Display” Switches are set at
0. Return chilled water temperature
1. Leaving chilled water temperature
2. Optional
3. Optional
4. Low leaving water temperature
cutout setting
5. Chilled water setpoint
6. Outside Air Temperature
7. Low Ambient Temperature Cutout Setting
8. % Full load motor current
9. Suction pressure, PSIG
10. Oil pressure, PSID
11. Discharge pressure, PSIG
12. Spare
13. Spare
14. Spare
15. Spare
16. Suction pressure cutout setting, PSIG
17. Optional
18. Fault code (See below)**
**FAULT CODES
DATA DISPLAY CODES
If “Select Data Dis-
play” Switches are set
at:
➤
This data will be
displayed.
➤
0. No Fault
1. Micro detected low/hi motor current or
External hi pressure cutout or
External motor overload
2. Low oil pressure, PSID
3. Low suction pressure, PSIG
4. Micro detected high pressure cutout
5. Spare
6. Spare
7. Spare
8. Spare
9. High ambient temperature
10. Low ambient temperature
11. Low water temperature
If F appears in leftmost position and “Select
Data Display” Switches are set at 18, any of
these Fault Codes may appear:
➤
Description of Fault.
(See Next Page for
Diagnosis)
➤