11.4.2 P--Menu Programming
1. If P- - is displayed, press the ENT button to enter the P- - Menu.
The P- - Menu allows compact setup/preparation of the condenser in the factory or in the field. Use the functions
described in Table 11.3 below, to establish a default control configuration for the board.
Item ID Meaning Default Notes
P01
Enter
Preparation
Mode
0
Setting this value to 1 enables preparation mode. All other P—menu items are disabled until this value is 1.
Note that control operations may be affected during preparation mode, therefore the cooling unit should
be off. Setting this value back to 0 creates new default values based upon selections in this menu. After
default values are established, the board exits preparation mode and reboots.
P02
Automatic VSD
Configuration
1
This item should only be used to address the VSDs for the unit. The value entered indicates the model of
the VSD:
1 – EBM
2 – Ziehl-Abegg
3 – Fans Tech
4 - Rosenberg
6 - Multi-wing
All fans must be the same model to use this parameter. When ENT is pressed, the board will operate and
power contactors for the VSDs and assign ModBus addresses. This procedure may take up to 5minutes
to complete.
P03
Refrigerant
Type
2
1 = R22
2 = R407C
3 = R410A
P04
Number
of Circuits
1
1 = Single Circuit
2 = Dual Circuit
P05
Liebert®
Lee Temp
Option
0
0 = No Liebert® Lee-Temp installed
1 = Liebert® Lee-Temp installed
P06 Condenser 1 0 = Small
Table 11.3 P-- Menu Items and Definitions
NOTE: Once set-up is complete, see Verifying the Fan Address on page61.
11.4.3 Manual Fan Addressing (No P-- Menu)
1. Unplug all fans before making changes to the fan configuration menu. If a fan has been replaced or is being re-
addressed, keep it unplugged until the fan type has been configured and it is ready to be addressed (Step 15 ).
2. Turn the power on.
3. The control board flashes F00 on the display when it has completed its boot cycle.
4. Press the ESC button.
5. Use the UP or DOWN arrows until C-- is on display.
6. Press the ENT button.
7. Use the UP or DOWN arrows until C03 is on display.
8. Press the ENT button.
11 Maintenance Proprietary and Confidential ©2024 Vertiv Group Corp. 59
Vertiv™ Liebert® MCV Installer/User Guide