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9.1 GENERAL
The 'PROGRAM' key is used to program the system
operating parameters including cutout points for safe-
ties, anticipatory unload points to avoid faults, and anti-
recycle timer duration.
When the 'PROGRAM' key is pressed, the following
message will be displayed to indicate the display is in
the program mode:
P R O G R A M
M O D E
Pressing the 'ENTER' key displays the control panel
message language:
D I S P L A Y
E N G L I S H
One of six display message languages maybe selected
(English, 23;14 (Code), Spanish, French, German and
Italian). The ' ' or ' ' keys should be used to select
the desired language.
Pressing the 'ENTER' key repeatedly allows scrolling
through the programmable displays.
As each value is displayed, it may be programmed us-
ing the 'Entry' and ' ' or ' ' keys. To program a value,
key in the desired value and press the 'ENTER' key to
store the value into memory and scroll to the next display.
If an unacceptable value is entered at any stage, the
following message is displayed for a few seconds and
the entered value is ignored:
YORK INTERNATIONAL
9. PROGRAM KEYS
L A N G U A G E
29023a
O U T
O F
R A N G E
TR Y
A G A I N !
The following section shows examples of each pro-
grammable value display in the order in which they
appear after pressing the 'PROGRAM' key, together
with guidance on the programming values for each
parameter.
The programmable values must be
checked and properly programmed
when commissioning the chiller. Fail-
ure to properly program these values
may cause damage to the chiller or
operating problems.
9.2 USER PROGRAMMABLE VALUES
High Discharge Pressure Cutout:
D I S C H A R G E
C U T O U T
=
This safety is bypassed for the first 5 seconds of opera-
tion after which if the cutout point is exceeded for 3
seconds, the system will shutdown.
Normally, the cutout should be set at 297 PSIG (26.5
bar). The microprocessor will, however, accept values
between 200 to 400 PSIG (13.8 to 27.52 bar).
FORM 201.25-NM1 (302)
P R E S S U R E
2 9 7
P S I G
69
7
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