York YCAV0157, Installation Operation & Maintenance

Page: 268 / 310

268
JOHNSON CONTROLS
FORM 201.21-NM1 (1223)
MICRO PANEL
LD10605
SYSTEM
SWITCHES
KEY
SYSTEM SWITCHES KEY
SYSTEM SWITCHES Key Operation
The SYSTEM SWITCHES key allows the operator to
turn individual systems ON and OFF. Safety lockouts
are also reset by selecting the respective system switch
RESET. When the System Switches Key is pressed, the
following message will appear:
The display indicates the respective system and it’s
on/off /reset switch status. The ▲▼ (ARROW) keys
allow scrolling to the next and previous system switch
(System 1, 2, 3, or 4).
SYSTEM SWITCHES SYS 1 ON / OFF / RESET
◄ ► =XXXXXXXXXXXXXXX
SYSTEM SWITCHES SYS 2 ON / OFF / RESET
◄ ► =XXXXXXXXXXXXXXX
SYSTEM SWITCHES SYS 3 ON / OFF / RESET
◄ ► =XXXXXXXXXXXXXXX
SYSTEM SWITCHES SYS 4 ON / OFF / RESET
◄ ► =XXXXXXXXXXXXXXX
The ◄ (LEFT ARROW) or ► (RIGHT ARROW) keys
allow scrolling through the choices of:
· SYSTEM OFF (default)
·
SYSTEM ON
· RESET (LOCKOUT)
The switch selection is accepted into memory by press-
ing the

(ENTER) key.
When the “RESET” selection is made and accepted, it
will not change the position of the switch (either ON
or OFF).
Whenever possible, except in emergen-
cies, always use the associated system
switch to turn off a compressor, which
allows the compressors to go through
a controlled shutdown. Avoid using
the "UNIT" switch to turn off the
compressors.