Carrier PC211 specifications Example 13 Maintenance Maint04 Display Screen

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.

Table 2, Example 13 — Maintenance (Maint04) Display Screen

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	x.xx	Δ DEG F (ΔDEG C)	pull		dt
Satisfied?	No/Yes		pull		sat
LEAD CHILLER in Control	No/Yes		leadctrl
LAG CHILLER: Mode	Reset,Off,Local,CCN		lagmode
Run Status	Timeout,Recycle,Startup,Ramping,Running		lagstat
	Demand,Override,Shutdown,Abnor-
	mal,Pumpdown
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		stdstat
	Demand,Override,Shutdown,Abnor-
	mal,Pumpdown
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.Δ = delta degrees.