Vertiv Liebert DME22 - Connecting Power Cable of Outdoor Unit

Vertiv™ | Liebert® DM | User Manual 51
Electrical Installation
• Use copper cables only and ensure that all cables are firmly connected.
• Ensure that the power supply voltage is as per the voltage specified on the unit name-plate.
• Install a MCB switch before the power supply input of the indoor unit to easily isolate the unit for
maintenance. Connect the power cable to the MCB switch and then to the unit.
• A RCCB should be installed before the indoor unit power supply input.
3.4. Connecting Power Cable of Outdoor Unit
Refer the following procedure to connect the power supply cables of the unit:
1. 07 kW/12 kW/17 kW standard engaged with an outdoor unit fan control cable is 8 m. If you need a longer cable, contact
Veritv for more details or purchase it yourself. The recommended power supply cable diameter for DM 07 kW/12 kW/17
kW outdoor unit must not be less than 18 AWG (0.75 mm
2
).
2. The recommended diameter of the power supply cable for DM 22 kW/27 kW outdoor unit must not be less than
16 AWG (1.5 mm
2
).
3. Connect one end of the outdoor unit power cable to the power output terminals of the indoor unit, as shown in Figure 3-1,
Figure 3-2 and Figure 3-3, and the other ends to the power connection terminals of the outdoor unit shown in Figure 3-4,
Figure 3-5, and Figure 3-6.
No. Description No. Description
1 Cable hole in cover 4 Wire clamp
2 Cable hole 5 Cable hole in unit
3 Power input terminal
Figure 3-4 Power Connection of Outdoor Unit (07 kW/12 kW)