York YCAS Installation Operation & Maintenance page 196

Micro Panel Contents
SERVICE MODE: VIEWING INPUTS AND OUTPUTS
All digital and analog inputs and digital outputs can
be viewed by pressing the FUNCTION key and the
pressing of the OPER DATA key. The UP and DOWN
arrow keys can then be used to scroll through the inputs
and outputs.
Each analog input will display the name of the measured
value, the input plug/pin number on the microboard, the
voltage read on the input, and the voltage converted to
pressure or temperature. An example is shown below:
S Y S 1 S U C T
X . X V D C =
Each digital input will display the name of the measured
value, the input plug/pin number on the micro board,
and the state of the input (ON or OFF). An example is
shown below:
S Y S 1 R U N
J 4 - 5
Each digital output will display the name of the item
controlled by the output, the output plug/pin number
on the microboard and the state of the output (ON and
OFF). An example is shown below:
S Y S 1
J 7 - 3
196
P R J 1 3 - 7
X X X X PSIG
P E R M
I S O F F
L L S V
I S O F F
SERVICE MODE: OUTPUT ENABLE
The Service Mode allows the user to enable and disable
the outputs (except compressor). To enter the Service
Mode, turn the UNIT switch off and press PROGRAM,
9675, ENTER. A message will be displayed for 2
seconds indicating that the service mode has been
enabled. Service Mode will time out after 60 minutes
and return to the normal mode. Service mode can also be
disabled by turning the UNIT switch on or by powering
the 115 VAC off and on.
Once Service Mode is entered, all of the outputs will be
turned off. The outputs can be turned on by pressing.
FUNCTION and then the OPER DATA key and scrolling
past the input displays to the output displays. The arrow
keys are used to scroll forward and backwards in the
displays, while the ENTER key is used to toggle the
outputs on and off. Only one output will be allowed on
at a time. The only exception will be the compressors
which cannot be turned on and off in this mode.
FORM 201.19-NM6 (804)
YORK INTERNATIONAL