York Medium Voltage Variable Speed Drive MVVSD12502K-84

Is the drive the correct voltage and current rating for the motor being started?

Safety and Environmental Checks

Ensure all installation safety precautions are followed

Is the installation site meeting all environmental specifications for NEMA 1?

Is the correct power source available?

Is the chiller in the correct working condition and ready to be started?

Inspect the unit to ensure all components have been delivered

Check for any visible damage during transit

Note damage on the carrier's freight bill and enter a claim

Report major damage to the local Johnson Controls representative

Verify MVVSD ratings match system data

Remove all blocks or temporary braces used for shipment

Clean out all metal chips, scrap wire, and other debris

Is there an appreciable accumulation of dust or dirt?

Clean the enclosure using a brush, vacuum cleaner, or a clean lint-free brush

Check the integrity of all bus bar supports for secureness and damage

Move the sections using a forklift of adequate capacity

Lift the enclosure from the slots provided in the channel base on the transformer section

Ensure the inverter section is shipped with 4 x 4 posts attached to the bottom

Adjust rigging lengths to maintain the enclosure in an upright position

Ensure the angle between the lifting cables and vertical does not exceed 45°

Ensure ropes or cables do not pass through the holes in lifting angles or eyebolts

Use slings with safety hooks or shackles of adequate load rating

Bolt together the enclosure sections with 1/2 in. hardware supplied

Install and wire the fan assemblies

Ensure all switches and circuit breakers are opened

Disconnect devices not intended for dielectric test, such as input surge suppressors

Perform dielectric test at 2.25 times the nominal system voltage plus 2,000 V phase-to-ground

Perform dielectric test at 2.25 times the nominal system voltage plus 2,000 V phase-to-phase

Calibrate light or buzzer to indicate failure with output current between 1.5 mA and 2.0 mA for every 1,000 V applied

Ensure high potential tests are performed by qualified personnel