This document is the installation and operation manual for HHPlus Series Pumps (Models PHP & PHPU). The pump must be installed and serviced by a professional service technician qualified in pool/spa installation. The procedures in this manual must be followed exactly to avoid dangerous electrical hazards. Improper installation and operation can cause high voltages to run through the electrical system, potentially resulting in death, serious injury, or property damage. This manual contains important information about the installation, operation, and safe use of the product, which should be given to the owner/operator of the equipment. It covers pump preparation and location, piping design and installation, electrical verification and installation, start-up, use and maintenance, troubleshooting, and specialty service such as removing blocked impeller.