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FORM 160.55-O1 (604)
17
YORK INTERNATIONAL
Only qual i Þ ed service personnel utilize this access lev el.
This lev el provides advanced control over many of the
chiller func tions and allows cal i bra tion of many of the
chiller con trols. The access lev els are listed above in
hierarchical order be gin ning with the lowest level and
proceeding to the high est level. Users logged in under
higher access levels may perform any actions per mit ted
by lower access levels.
The OPERATOR access level is ac com pa nied by a
10-minute timeout. After ten (10) suc ces sive minutes
with out a keypress, the panel will re vert to the VIEW
ac cess level. This prevents un au tho rized changes to the
chiller if a user was logged in at a higher access level
and failed to logout. Proper pro ce dure requires that af ter
making necessary setpoint ad just ments the user re turn
to the Home Screen and logout.
Logout
Access Level Required: OP ER A TOR
This key is displayed when a user is logged in at any
level other than VIEW. Pressing it will return the ac cess
level to VIEW.
Print
Access Level Required: VIEW
Use this key to generate a hard-copy report of the present
system status. This provides a snapshot of the primary
operating conditions at the time the key is pressed. The
History page provides enhanced reporting ca pa bil i ty.
(See HISTORY below.) This option will not be present
if the chill er is pres ent ly conÞ gured to log any in com ing
Adap tive Ca pac i ty Con trol map points. (See the Adap-
tive Capacity Control Details screen.)
Message Clear
Access Level Required: SER VICE
When certain safety or cycling conditions have been
detected and the chiller has been shutdown, the main
status display of the chiller will continue to display a
message indicating the cause of the shutdown. Using
this key, the message can be cleared once the condition
has been removed.
Warning Reset
Access Level Re quired: OP ER A TOR
Use of this key acknowledges a warning condition and
resets the message display associated with it.
NAVIGATION
System
Used to provide additional system information.
Evaporator
A detailed view of all evaporator parameters, in clud ing
the programmable Leaving Chilled Liq uid Setpoints.
Condenser
A detailed view of all condenser parameters, in clud ing
control of the purge functions.
Compressor
A detailed view of all the compressor pa ram e ters. This
includes pre-rotation vane control, Hot Gas Bypass
Control and PRV cal i bra tion.
Oil Sump
A detailed view of all the oil pump and oil sump pa-
ram e ters.
Motor
A detailed view of the motor controller pa ram e ters, spe-
ciÞ c to the controller type presently utilized on the chill er
system. This allows programming of the Cur rent Limit
and the Pulldown Demand Lim it values. For a VSD
system, the Adaptive Capacity Control and Har mon ic
Filter information is con trolled under this screen.
Setpoints
This screen provides a single location to pro gram the
most common system setpoints. It is also the gateway
to many of the general system setup pa ram e ters such as
Date/Time, Display Units, Sched ul ing, Printer Setup,
etc.
History
This screen provides access to a snapshot of system data
at each of the last 10 shutdown con di tions.
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