On/Off Record; Team Work - Liebert DM User Manual

48 Chapter 5 Precision Air Conditioner Controller
The fan, comp1, comp2, heat1, heat2 and HUM run hours have the same submenus. Taking the Fan Run Hours
menu for example, the submenu interface is shown in Figure 5-39. You can view the accumulated running hours of the
fan.
If the value in Operation Hours exceeds that in Service Interval, the system will generate an alarm to inform the
maintenance personnel with fan maintenance. After the fan is maintained, the Operation Hours will be cleared. After
setting the Hour Reset to YES, the maintenance personnel can reset the Service Interval.

5.5.10 On/Off Record

Select the On/Off Record in the Main Menu 2/2 interface and press the ENTER button to enter the On/Off Record
menu, as shown in Figure 5-40. Only factory technicians can access the menu.
This menu is used to record the on/off information of some important components, such as fan, compressor, electrical
heater and humidifier. These records provide a base and reference to maintenance personnel for part maintenance.
The fan, comp1, comp2, heat1, heat2 and HUM have the same submenus. Taking the Fan On/Off Record menu for
example, the submenu interface is shown in Figure 5-41. The menu items include Records (total record number), No.
(record SN) and Time (fan on and off time).

5.5.11 Team Work

Select Main Menu 2/2 -> Team Work to enter the Team Work menu. The menu is displayed in two screens, as shown
in Figure 5-42. The second screen provides the working status of #00 ~ #15 units. For detailed setting ranges of the
menu items, refer to Appendix 6 Parameter Setting Table.
The teamwork mode can be set to Single, 0, 1, 2 or 3, which are applicable to different cases, as follows:
 Single: Each unit operates independently without communication with each other.
 0: Each unit operates independently. But the communication exits among them.
 1: It is applicable to the case with an even temperature & humidity load.

2: It is applicable to the case with an uneven temperature & humidity load. Each unit independently computes the
individual requirement.
 3: It is applicable to the case with an uneven temperature & humidity load. The lead unit distributes the
requirement for each unit.
Fan Run Hours [2]
Operation Hours: 00000h
Service Interval: 30000h
Hours Reset: No
Figure 5-39 Fan run hours interface
On/Off Record [3] 1/2
D00 I00
Fan On/Off Record
Comp1 On/Off Record
Comp2 On/Off Record
Figure 5-40 On/off record interface
Fan On/Off Record
Records: 012
No. 001
Time: 2008/12/02
2008/12/02
Figure 5-41 Fan on/off record interface
DM Series 16kW Air Conditioner User Manual
D01 I10
On/Off Record [3] 2/2
Heat1 On/Off Record
Heat2 On/Off Record
HUM On/Off Record
D00 I00
12:02:32 To
13:14:50
D00 I00