Fig. 9 - Refrigerant Level Control Screen - York YT Millennium Operating & Maintenance

OptiView Control Center
REFRIGERANT LEVEL CONTROL SCREEN
FIG. 9
OVERVIEW
This screen displays a cutaway view of the chiller con-
denser, along with the liquid refrigerant level sensor and
the flow control valve. All setpoints relating to the liquid
level control are maintained on this screen. Through
animation, the variable orifice position is displayed. In
addition, the refrigerant flow control valve (variable
orifice) can be manually operated.
Requires a login access level of
SERVICE.
DISPLAY ONLY
Refrigerant Level Position
Displays the present position of the liquid level. The
refrigerant level is animated in the cutaway view of
the condenser. When the actual level is 0% to 15%, the
level is shown about 50% full. When the actual level is
16% to 31%, the level is shown about 60% full. When
the actual level is 32% to 47%, the level is shown about
70% full. When the actual level is 48% to 63%, the level
is shown about 80% full. When the actual level is 64%
to 79%, the level is shown as about 90% full. Actual
levels above 79%, shown as 100% full.
26
Refrigerant Level Control Mode
Indicates whether the liquid level control is under man-
ual or automatic control.
Raise (LED)
Is ON when the digital output controlling the Level
Raise contact is on.
Lower (LED)
Is ON when the digital output controlling the Level
Lower contact is on.
PROGRAMMABLE
[Refrigerant Level] Setpoint
Access Level Required: SERVICE
[Refrigerant Level Control] Period
Access Level Required: SERVICE
[Refrigerant Level Control] Proportional
Limit Open
Access Level Required: SERVICE
FORM 160.55-O1 (920)
00303VIP
YORK INTERNATIONAL