YORK INTERNATIONAL
109
FORM 150.62-NM7 (103)
type, ex pan sion valve type, and start/hour counters to
be viewed/mod i fi ed. The EN TER/ADV key is used to
ad vance through the outputs. Us ing the UP/DOWN AR-
ROW keys will turn the re spec tive digital out put on/off
or modify the value.
Following is the order of outputs that will ap pear as the
ENTER/ADV key is pressed:
SYS 1 COMP 1 STATUS TB3-2 IS:
SYS 1 LLSV STATUS TB3-3 IS:
SYS 1 COMP 2 STATUS TB3-4 IS:
SYS 1 COMP 3 STATUS TB3-5 IS:
SYS 1 HGBP STATUS TB3-6 IS:
SYS 2 COMP 1 STATUS TB3-8 IS:
SYS 2 LLSV STATUS TB3-9 IS:
SYS 2 COMP 2 STATUS TB3-10 IS:
SYS 2 COMP 3 STATUS TB4-1 IS:
SYS 1 FAN OUTPUT 1 TB4-2 IS:
SYS 1 FAN OUTPUT 2 TB4-4 IS:
SYS 1 FAN OUTPUT 3 TB4-5 IS:
SYS 2 FAN OUTPUT 1 TB4-6 IS:
SYS 2 FAN OUTPUT 2 TB4-8 IS:
SYS 2 FAN OUTPUT 3 TB4-9 IS:
EVAP HEATER STATUS TB4-10 IS:
SYS 1 ALARM STATUS TB5-1 IS:
SYS 2 ALARM STATUS TB5-2 IS:
EVAP PUMP STATUS TB5-3 IS:
SYS 1 EEV OUTPUT J10 - 1, 2 = :
SYS 2 EEV OUTPUT J10 - 3, 4 = :
ANALOG OUTPUT 3 J10 - 5, 6 = :
ANALOG OUTPUT 4 J10 - 7, 8 = :
Each display will also show the output con nec tion on
the microboard for the respective output status shown.
For example:
This display indicates that the system 1 liquid line so-
le noid valve is OFF, and the output connection from the
microboard is coming from terminal block 3 - pin 2.
Pressing the UP Arrow key will energize the liquid line
solenoid valve and OFF will change to ON in the dis play
as the LLSV is energized.
SERVICE AND TROUBLESHOOTING
CLEARING HISTORY BUFFERS
The history buffers may be cleared by pressing the HIS-
TO RY key and then repeatedly pressing the UP arrow
key until you scroll past the last history buffer choice.
The following message will be displayed:
Pressing the ENTER/ADV key at this display will cause
the history buffers to be cleared. Press ing any other key
will cancel the operation.
DO NOT CLEAR BUFFERS. Im por -
tant in for ma tion may be lost. Contact
factory service.
SOFTWARE VERSION
The software version may be viewed by press ing the
HIS TO RY key and then repeatedly pressing the DOWN
ar row key until you scroll past the fi rst history buffer
choice. The fol low ing mes sage is an example of what
will be dis played:
SERVICE MODE
Service Mode is a mode that allows the user to enable
or dis able all of the outputs (ex cept com pres sors) on
the unit, change chiller confi guration setup parameters
and view all the in puts to the microboard.
To enter Service Mode, turn the unit switch off and press
the following keys in the sequence shown; PROGRAM,
UP ARROW, UP ARROW, DOWN ARROW, DOWN
ARROW, ENTER. Service Mode will time out after 30
minutes and return to normal control mode, if the panel
is accidentally left in this mode. Otherwise, turning the
unit switch on will take the panel out of Service Mode.
SERVICE MODE – OUTPUTS
After pressing the key sequence as described, the
con trol will enter Service Mode per mit ting the outputs
(ex cept compressors), op er at ing hours, refrigerant
I I N I T I A L I Z E H I S T O R Y
E N T E R = Y E S
S O F T W A R E V E R S I O N
C . M M C . 0 1 . 0 1
S Y S 1 L L S V S T A T U S
T B 3 - 2 I S O F F
3
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