ACH550 - ABB

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ACH550Installation, Operation and Maintenance Manual (I, O & M) ACH550 -UH HVAC Drives ( HP) ACH550 -BCR/BDR/VCR/VDR E-Clipse Bypass Drives ( HP) ACH550 -PCR/PDR Packaged Drives with Disconnect ( HP)2ACH550 Installation, Operation and Maintenance ManualSafetySafetyUse of warnings and notesThere are two types of safety instructions throughout this manual: Notes draw attention to a particular condition or fact, or give information on a subject. Warnings caution you about conditions which can result in serious injury or death and/or damage to the equipment.

Note: Frame sizes R3 and R4 have four holes along the top. Use only two. If possible, use the two outside holes (to allow room to remove the fan for maintenance). Note: ACH400 drives can be replaced using the original mounting holes. For R1 and R2 frame sizes, the mounting holes are identical. For R3 and R4 frame sizes, the

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