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Table 2 — LID Screens (cont)
EXAMPLE 12 — MAINTENANCE (MAINT03) 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 MAINT03.
6. Press SELECT
.
DESCRIPTION RANGE/STATUS UNITS REFERENCE POINT NAME
SURGE/HGBP ACTIVE ? NO/YES
Active Delta P 0-200 (0-1379) PSI (kPa) dp a
Active Delta T 0-200 (0-111) DEG F (DEG C) dt a
Calculated Delta T 0-200 (0-111) DEG F (DEG C) dt c
Surge Protection Counts 0-12 spc
NOTE: Override is not supported on this maintenance screen. Only values with capital letter reference point names are variables available for read
operation.
EXAMPLE 13 — MAINTENANCE (MAINT04 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 MAINT04.
6. Press SELECT
.
DESCRIPTION RANGE/STATUS UNITS REFERENCE POINT NAME
LEAD/LAG: Configuration DISABLE,LEAD,LAG,STANDBY, INVALID leadlag
Current Mode DISABLE,LEAD,LAG,STANDBY, CONFIG llmode
Load Balance Option DISABLE/ENABLE loadbal
LAG Start Time 0-60 MIN lagstart
LAG Stop Time 0-60 MIN lagstop
Prestart Fault Time 0-30 MIN preflt
Pulldown: Delta T/Min 2-10 F/min (1.1-5.5 C/min) ⌬ DEG F/min pull dt
Satisfied? No/Yes (⌬ DEG C/min) pull sat
LEAD CHILLER in Control No/Yes leadctrl
LAG CHILLER: Mode Reset,Off,Local,CCN lagmode
Run Status Timeout,Recycle,Startup,Ramping,Running
Demand,Override,Shutdown,Abnormal,Pumpdown
lagstat
Start/Stop Stop,Start,Retain lag s s
Recovery Start Request No/Yes lag rec
STANDBY CHILLER: Mode Reset,Off,Local,CCN stdmode
Run Status Timeout,Recycle,Startup,Ramping,Running
Demand,Override,Shutdown,Abnormal,Pumpdown
stdstat
Start/Stop Stop,Start,Retain std s s
Recovery Start Request No/Yes std rec
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. The MAINT04 screen is available on PSIO Software Version 09 and higher.
3. ⌬ = delta degrees.
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