York Medium Voltage Variable Speed Drive MVVSD06002K-95

Describe any necessary repairs or replacements

Ensure all safety signs are visible and not obscured

Manually exercise all switches, relays, and other operating mechanisms

Check operating mechanisms for correct alignment and free operation

Check interlocks, switches, and other mechanisms for intended function

Ensure all switches and circuit breakers are opened

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

Set all devices to their normal off position before energizing incoming power

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

Was the dielectric test performed by qualified personnel?

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

Follow all installation safety precautions

Is the correct power source available?

Check if the installation site meets all environmental specifications for NEMA 1

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

Power Factor Correction Capacitors (PFCCs) Check

Are PFCCs located on the power source side of the drive?

Describe any issues with PFCCs placement

Ensure drive positioning allows ample clearance for cabinet doors and accessibility of controls

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

Inspect the unit for component delivery and transit damage

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

Report major damage to the local Johnson Controls representative

Ensure no damaged equipment is installed or energized