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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.
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.
Table 2, Example 13 — Maintenance (Maint04) Display Screen
Description Range/Status Units
Reference
Point Name
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
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,Abnor-
mal,Pumpdown
Stop,Start,Retain
No/Yes
Reset,Off,Local,CCN
Timeout,Recycle,Startup,Ramping,Running
Demand,Override,Shutdown,Abnor-
mal,Pumpdown
Stop,Start,Retain
No/Yes
MIN
MIN
MIN
∆
DEG F (
∆
DEG C)
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