System Switches Key; Figure 62 - System Switches Key - York YVAA Installation Operation & Maintenance

Form 201.47-ICOM1
Issue date: 17/11/2022

Figure 62 - 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
◄ ►
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
◄ ►
The ◄ (LEFT ARROW) or ► (RIGHT ARROW)
keys allow scrolling through the choices of:
• SYSTEM OFF (default)
• SYSTEM ON
• RESET (LOCKOUT)
JOHNSON CONTROLS

System switches key

SYS 1 ON / OFF / RESET
=XXXXXXXXXXXXXXX
SYS 2 ON / OFF / RESET
=XXXXXXXXXXXXXX
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 compres-
sors.
SECTION 8 - MICROPANEL
System
switches key
LD10605
159
8