FORM 150.75-NM2
91
YORK INTERNATIONAL
Printer Configuration
2 Switches on the printer must be properly configured.
Remove the paper roll to access these switches. Place
the switches in the following position:
SW. 1 OFF
SW. 2 ON
Obtaining a Print Out
A print-out of current operating data may be obtained
by pressing the OPER DATA key. A snap-shot will be
taken by the micro of current operating conditions.
These conditions will be stored in memory until they
can be transmitted to the printer and printed. A sample
print-out is shown in Fig. 29 on page 62.
A print-out of the fault shut-down history may be ob-
tained by pressing the HISTORY key. A print out show-
ing the last 3 faults with all system conditions at the
time of the fault will be transmitted. A sample print-out
is shown in Fig. 30 on page 63.
An automatic print-out 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 print-out that is obtained when the OPER DATA
Key is pressed; however, it will be a snap-shot of sys-
tem operating conditions at the instant that the fault oc-
curred. Additionally, the Status indication that is noted
in the print-out will note the specific fault that occurred.
Delays may be experienced during print-outs resulting
from the Master microprocessor board breaking com-
munications with the printer to enable communications
with the Slave microprocessor board. The delays in print-
ing will be experienced not only during print outs, but at
the beginning of the print-out as well.
This action is necessary and normal. Print-out time may
seem very long, especially during HISTORY print-outs
where quite a few communication breaks will be noted.
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 handshaking se-
quence will differ between printers. This makes the equip-
ment susceptible to operation problems or mis-wiring
which may cause damage to the printer or the micropro-
cessor board. YORK assumes no responsibility for as-
sistance 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.
