Carrier 17 Start Up & Operation Manual page 34

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 MAINT03.
6. Press SELECT .
DESCRIPTION
SURGE/HGBP ACTIVE ?
Active Delta P
Active Delta T
Calculated Delta T
Surge Protection Counts
NOTE: Override is not supported on this maintenance screen. Only values with capital letter reference point names are variables available for read
operation.
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 MAINT04.
6. Press SELECT .
DESCRIPTION
LEAD/LAG: Configuration
Current Mode
Load Balance Option
LAG Start Time
LAG Stop Time
Prestart Fault Time
Pulldown: Delta T/Min
Satisfied?
LEAD CHILLER in Control
LAG CHILLER: Mode
Run Status
Start/Stop
Recovery Start Request
STANDBY CHILLER: Mode
Run Status
Start/Stop
Recovery Start Request
NOTES:
1. Only values with capital letter reference point names are variables available for read operation. Forcing is not supported on this maintenance
screen.
2. = delta degrees.
Table 2 — LID Screens (cont)
EXAMPLE 12 — MAINTENANCE (MAINT03) DISPLAY SCREEN
RANGE/STATUS
NO/YES
0-200 (0-1379)
0-200 (0-111)
0-200 (0-111)
0-12
EXAMPLE 13 — MAINTENANCE (MAINT04) DISPLAY SCREEN
RANGE/STATUS
DISABLE,LEAD,LAG,STANDBY, INVALID
DISABLE,LEAD,LAG,STANDBY, CONFIG
DISABLE/ENABLE
0-60
0-60
0-30
x.xx
No/Yes
No/Yes
Reset,Off,Local,CCN
Timeout,Recycle,Startup,Ramping,Running
Demand,Override,Shutdown,Abnormal,Pumpdown
Stop,Start,Retain
No/Yes
Reset,Off,Local,CCN
Timeout,Recycle,Startup,Ramping,Running
Demand,Override,Shutdown,Abnormal,Pumpdown
Stop,Start,Retain
No/Yes
UNITS
PSI (kPa)
DEG F (DEG C)
DEG F (DEG C)
UNITS
MIN
MIN
MIN
DEG F ( DEG C)
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REFERENCE POINT NAME
dp a
dt a
dt c
spc
REFERENCE POINT NAME
leadlag
llmode
loadbal
lagstart
lagstop
preflt
pull dt
pull sat
leadctrl
lagmode
lagstat
lag s s
lag rec
stdmode
stdstat
std s s
std rec