4. If the power cable is damaged, it must be replaced immediately to eliminate the dangers. The
replacement procedure must be carried out by an authorized professional or experienced service
personnel.
5. The electrical installation and maintenance must be carried out by some authorized personnel or a
trained engineer well-versed with the inner workings of the electrical connection.
6. Prior to the wiring, a voltmeter must be used to measure the power supply voltage and ensure that the
power supply is switched off.
7. Use screws, guide rails, or other modes to fix the device firmly during the installation process to avoid
the movement or shaking during the start-up or operation mode.
8. For the air conditioner configured with EC fans, the unit power grid adheres to the TN or TT star
connection power distribution system. However, contact Vertiv if there is a need to configure another
type of power grid.
9. A rated circuit breaker shall be provided to be disconnected from power supply.
10. SCCR (Short-Circuit Current Rating) of the CRD10 air cooled unit - 6kA (CE Model), or 10kA (UL Model).
4.2 CRD10 Wiring Connections
Followings are the intricate cable connections to all the critical components inside the CRD10 unit:
1. Power cable and control cabinet of the indoor unit
2. Solenoid valve cable of the liquid line solenoid valve kit
3. Low Ambient Kit power cable from indoor to outdoor (if configured)
4. Input and output control cable of the unit
4.2.1
Power Cable and Control Cabinet of the Indoor unit
This section deals with the different types of connections related to the indoor unit, namely–
1. Electrical port location of the indoor unit
2. Connecting the Power cables of the indoor unit
3. Connecting the Control cables
4. Connecting the Solenoid valve of the liquid line solenoid valve kit
5. Confirm the transformer connection cable according to voltage of power supply
6. Connecting the outdoor unit and the indoor unit
7. Teamwork Control
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