York YVAA, Installation, Operation & Maintenance Instructions Manual, Page: 160 / 178

JOHNSON CONTROLS
160
SECTION 8 - MICROPANEL
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
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 lock-
outs are also reset by selecting the respective system
switch RESET. When the SYSTEM SWITCHES key
is pressed, the following message will appear:
SYSTEM SWITCHES SYS 1 ON / OFF / RESET
◄ ► =XXXXXXXXXXXXXXX
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 and 2).
SYSTEM SWITCHES SYS 2 ON / OFF / RESET
◄ ► =XXXXXXXXXXXXXX
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.