York YCWS0313SC, Installation, Operation And Maintenance Manual, Page: 65 / 104

FORM 201.24-NM2
65
YORK INTERNATIONAL
Obtaining a Printout
A printout of current operating data may be obtained
by pressing the ‘OPER DATA’ key.
A snapshot will be taken by the microprocessor of cur-
rent operating conditions. These conditions will be
stored in memory until they can be transmitted to the
printer and printed.
A printout of the fault shut-down history may be ob-
tained by pressing the ‘HISTORY’ key. A printout
showing the last 6 faults with all system conditions at
the time of the fault will be transmitted.
An automatic printout will be sent to the printer when-
ever the chiller shuts down on a fault, regardless of
whether the fault causes a system or the entire chiller
to lockout or whether restart is permitted.
This is the same printout that is obtained when the
‘OPER DATA’ key is pressed, however it will be a snap-
shot of system operating conditions at the instant that
the fault occurred. Additionally, the Status indication
that is noted in the printout will note the specific fault
that occurred.
Using Other Printers
Control codes vary from printer to printer. This will
result in unusual formatting of printed data from many
printers. In addition, ‘handshaking’ lines and ‘hand-
shaking’ sequence will differ between printers. This
makes the equipment susceptible to operation problems
or mis-wiring which may cause damage to the printer
or the microprocessor board. YORK assumes no re-
sponsibility for assistance or damage in the use of non-
specified printers.
Warranty
YORK assumes no warranty responsibility in the use
of the printer. This includes damages to the printer and
the microprocessor board or chiller operation problems
which may result.
TABLE 5 – PRINTER
AMB FUNCTION PRINTER
TXD Serial data to printer RXD
DSR
Busy signal from printer
(high to accept data)
DTR
GND Signal ground to printer GND
White (WHT)
Black (BLK)
Cable colors with YORK supplied
Red (RD)
printer option
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