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General Requirements
• Locate the equipment disconnect means within 3-feet of the heater’s electrical enclosure, or as
close to the heater as possible. Always satisfy applicable codes and standards.
• AquaCal heat pumps are designed for copper conductors, only.
• In sizing power wiring, be especially aware of up-sizing requirements necessary due to wiring
distances. Always satisfy applicable codes and standards.
• Multiple heaters installed at same site generally require special sequencing controls (an “ASC”
controller will be required). If yours is a multi-heater installation, contact AquaCal Technical
Support Group (800-786-7751) for application assistance.
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Electrical installation should be by licensed electrician only.
Code-Specific Requirements
• The electrical installation must conform to the most current version of the National Electrical
Code, NFPA No.70, and all applicable local and state codes.
• National Electrical Code,
Article 680; Swimming Pools, Fountains, and Similar Installations, shall
apply.
• National Electrical Code,
Article 440, Air-Conditioning and Refrigeration Equipment, shall apply.
Electrical Requirements
Connecting External Controllers
• See document entitled: “Connecting External Controllers to AquaCal Heat Pumps”; this
document is shipped with every AquaCal heater. For extra copies, contact AquaCal Customer
Support (800-786-7751); request literature piece: “LTP0050.”
• For Call-Flex option, reference instructions received with the Call-Flex kit.
• Please contact the AquaCal Technical Support Group (800-786-7751) concerning the application
of any external controller, Call-Flex, sequencing control, etc.
INSTALLATION
WARNING!
Failure to heed the following may result in permanent
injury or death.
Installation made by unqualified persons can result in hazards to the installer and others.
The information contained in this Electrical Installation section is intended for use by qualified
electrical installation technicians, familiar with electrical service industry safety standards
and methods. Electrical installation to be performed by qualified individuals only.