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YORK INTERNATIONAL96
The problems that could be encountered in the Control
Center are in the following categories:
• Keypad
• Display
• Serial Input/Output (I/O)
• Digital Input/Output (I/O)
• Analog Inputs
There is a Diagnostic and associated Troubleshooting
procedure for each category. They are described
on the following pages. The ofine diagnostics are
accessed from the Diagnostics Main Screen, which is
entered using the procedure below. If there is a Remote
Control Center problem, determine the category of
the problem. Then perform the applicable Diagnostic.
If the Diagnostic reveals a malfunction, perform the
Troubleshooting procedure to locate the defective
component.
There are several documents that must be referred to
while performing the Diagnostics and Troubleshooting
procedures. Each procedure references the Section and
gures of this book that describe the operation of the
component being tested.
The Offline diagnostic screens are only available
when the panel is powered on (or rebooted) with the
Diagnostics Enable dip switch in the Enabled position.
When in this mode all normal RCC functions are
disabled. If the Diagnostics Enable dip switch is placed
in the Disabled position while the panel is in the Ofine
Diagnostics mode, the Diagnostics task will cause the
panel to reboot into the online diagnostics mode.
OFFLINE DIAGNOSTICS & TROUBLESHOOTING
(REFER TO FIG 48 & 49)
Service