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Table 144: Display only
Field/LED name
Description
Leaving Chilled Liquid
Temperature
Displays the temperature of the liquid as it leaves the evaporator.
Leaving Chilled Active
Setpoint
Displays the setpoint to which the Leaving Chilled Liquid is being
controlled.
Quick Pulldown in Effect
(LED)
Illuminates while a Quick Pulldown is in effect. This is in effect from
a start initiate until the Quick Pulldown Setpoint Offset has been
reached or the Pulldown Override Time has elapsed, whichever
occurs first.
Note:
For fields requiring access level of SERVICE. Qualified service technicians should refer
to the OptiView Control Center Service for operation instructions and explanations of all
programmable setpoints and displayed values.
Table 145: Programmable
Button
Access level Description
Change
Setpoints
Service
Used to enter the following setpoints.
Pressing this key places a green selection box around the first
changeable setpoint. Use the ▲ and ▼ keys to place the selection
box around the desired setpoint. With the setpoint selected, press
the Enter key. A dialog box appears with the range of settings.
Mapping
Enable
Service
This is the same setpoint as shown on the ACC DETAILS Screen.
It can be programmed on either the ACC Screen or the QUICK
START Screen. It sets the Delta T needed to be met to enable surge
mapping and speed reduction initially on startup. (0.5°F to 4.0°F;
default 1.0°F)
Pulldown
Override
Time
Service
This setpoint is the length of time the PRV is held open (Quick
Restart) and the ACC speed (Quick Restart and Quick Normal Start)
is increased on startup if the Quick Pulldown Setpoint Offset is not
reached.
This could be due to hitting current limit during the pulldown. If
the Quick Pulldown Setpoint Offset is not reached in the Pulldown
Override Time, PRV and ACC speed control will revert back to normal
automatic control. (0 min to 15 min; default 10 min)
VSD Start
Frequency
Service
The VSD Start Frequency is as follows:
•
60 Hz units with quick start enabled equal 30 Hz to 45 Hz
(default 45 Hz)
•
50 Hz units equal 25 Hz to 37.5 Hz (default 37.5 Hz)
This setpoint is the same as shown on the ACC DETAILS Screen. It
can be programmed on either the ACC Screen or the QUICK START
Screen. It sets the VSD Start Frequency from which the speed will
ramp from.
YK-EP Style B Centrifugal Chiller
150
Содержание 160.87-OM1
Страница 2: ...2 YK EP Style B Centrifugal Chiller ...
Страница 6: ...6 YK EP Style B Centrifugal Chiller ...
Страница 227: ...Figure 72 Sample printout of Status 227 YK EP Style B Centrifugal Chiller ...
Страница 228: ...Figure 73 Sample printout of Status cont YK EP Style B Centrifugal Chiller 228 ...
Страница 229: ...Figure 74 Sample printout of Setpoints 229 YK EP Style B Centrifugal Chiller ...
Страница 230: ...Figure 75 Sample printout of Setpoints cont YK EP Style B Centrifugal Chiller 230 ...
Страница 231: ...Figure 76 Sample printout of Schedule 231 YK EP Style B Centrifugal Chiller ...
Страница 232: ...Figure 77 Sample printout of a Sales order YK EP Style B Centrifugal Chiller 232 ...
Страница 233: ...Figure 78 Sample printout of a Sales order cont 233 YK EP Style B Centrifugal Chiller ...
Страница 234: ...Figure 79 Sample printout of History YK EP Style B Centrifugal Chiller 234 ...
Страница 235: ...Figure 80 Sample printout of History cont 235 YK EP Style B Centrifugal Chiller ...
Страница 236: ...Figure 81 Sample printout of a security log report YK EP Style B Centrifugal Chiller 236 ...
Страница 260: ...Figure 87 Microboard 031 03630 007 Figure 88 Program card 031 03601 002 YK EP Style B Centrifugal Chiller 260 ...