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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. ∆ = 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,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
MIN
MIN
MIN
∆
DEG (
∆
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