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Table 2 — LID Display Data (cont)
EXAMPLE 11 — 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 (*). Reference point names with
capital letters can be read by CCN and Building Supervisor software.
EXAMPLE 12 — 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
†Information is applicable to hermetic machines (19EX) only.
NOTE: Overriding is not supported on this maintenance screen. Active overrides show the associated point in alert (*). Reference point names with
capital letters can be read by CCN and Building Supervisor software.
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