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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