Table 2 — LID Screens (cont)
EXAMPLE 10 — MAINTENANCE (MAINT01) DISPLAY SCREEN
To access this display from the LID default screen:
1. Press MENU
.
2. Press SERVICE
.
3. Scroll down to highlight CONTROL ALGORITHM STATUS.
4. Press SELECT
.
5. Scroll down to highlight MAINT01.
DESCRIPTION RANGE/STATUS UNITS REFERENCE POINT NAME
CAPACITY CONTROL
Control Point 10-120 (–12.2-48.9) DEG F (DEG C) ctrlpt
Leaving Chilled Water –40-245 (–40-118) DEG F (DEG C) LCW
Entering Chilled Water –40-245 (–40-118) DEG F (DEG C) ECW
Control Point Error –99-99 (–55-55) DEG F (DEG C) cperr
ECW Delta T –99-99 (–55-55) DEG F (DEG C) ecwdt
ECW Reset –99-99 (–55-55) DEG F (DEG C) ecwres
LCW Reset –99-99 (–55-55) DEG F (DEG C) lcwres
Total Error + Resets –99-99 (–55-55) DEG F (DEG C) error
Guide Vane Delta –2-2 % gvd
Target Guide Vane Pos 0-100 % GV TRG
Actual Guide Vane Pos 0-100 % GV ACT
Proportional Inc Band 2-10 gv inc
Proportional Dec Band 2-10 gv dec
Proportional ECW Gain 1-3 gv ecw
Water/Brine Deadband 0.5-2 (0.3-1.1) DEG F (DEG C) cwdb
NOTE: Overriding is not supported on this maintenance screen. Active overrides show the associated point in alert (!). Only values with capital letter
reference point names are variables available for read operation.
EXAMPLE 11 — MAINTENANCE (MAINT02) DISPLAY SCREEN
To access this display from the LID default screen:
1. Press MENU
.
2. Press SERVICE
.
3. Scroll down to highlight CONTROL ALGORITHM STATUS.
4. Press SELECT
.
5. Scroll down to highlight MAINT02.
6. Press SELECT
.
DESCRIPTION RANGE/STATUS UNITS REFERENCE POINT NAME
OVERRIDE/ALERT STATUS
MOTOR WINDING TEMP† –40-245 (–40-118) DEG F (DEG C) MTRW
Override Threshold 150-200 (66-93) DEG F (DEG C) mt over
CONDENSER PRESSURE –6.7-420 (–42-2896) PSI (kPa) CRP
Override Threshold 90-245 (621-1689) PSI (kPa) cp over
EVAPORATOR REFRIG TEMP –40-245 (–40-118) DEG F (DEG C) ERT
Override Threshold 2-45 (1-7.2) DEG F (DEG C) rt over
DISCHARGE TEMPERATURE –40-245 (–40-118) DEG F (DEG C) CMPD
Alert Threshold 125-200 (52-93) DEG F (DEG C) cd alert
BEARING TEMPERATURE –40-245 (–40-118) DEG F (DEG C) MTRB
Alert Threshold 175-185 (79-85) DEG F (DEG C) tb alert
NOTE: Overriding is not supported on this maintenance screen. Active overrides show the associated point in alert (!). Only values with capital letter
reference point names are variables available for read operation.
†Information is applicable to hermetic machines only.
33 1197
→
To Next Page
Loading...
