Document LTP0098 rev 2e

 

Electrical Requirements

WARNING

Failure to heed the following may result in injury or death.

 

  • The information contained in this section is intended for use by qualified electricians familiar with electrical service-industry safety standards and methods.
  • Locate the equipment disconnect as near to the heat pump as possible. Always satisfy applicable codes and standards.
  • Never mount power-disconnects directly to the heat pump.
  • In sizing power wiring, be especially aware of up-sizing requirements necessary due to wiring distances. Always satisfy applicable codes and standards.
  • AquaCal® heat pumps are designed to use copper conductors, only. Do not use aluminum wire.
  • Multiple heat pumps installed at the same site may benefit from automatic sequencing controllers (ASC) to avoid excessive power drops at start-up. See "Available Accessories"

Electrical Standards

Table 2 - Standards
Standards Title
NFPA 70 The electrical installation must conform to the current version of the NEC, and all applicable local and state codes
NFPA 70 Article 440 Standard for Safety for Electric Spas, Equipment Assemblies, and Associated Equipment
NFPA 70 Article 680 Standard for Safety for Swimming Pool Pumps, Filters, and Chlorinators
IEC 60335-1-2001 Household and similar electrical appliances - Safety - General Requirements
IEC 60335-2-40 2006 Household and similar electrical appliances - Safety – Particular requirements for electrical heat pumps, air-conditioners, and dehumidifiers
UL1995 & CSA C22.2 236-05 Heating and cooling equipment

Grounding and Bonding

Follow local code requirements for properly grounding and bonding heat pump equipment.

  • A bonding lug has been provided on the lower right hand corner of the front access panel.

Surge Suppression

The use of approved commercial surge protectors is strongly recommended.

Sizing the Electrical Service

Refer to equipment data plate for specific information required to size electrical service and over-current protection of heat pump. Sizing is based on data plate information, wire size, wiring devices, and over-current protection per applicable local codes and standards. See "Identifying Model Specifications"

Minimum and Maximum Operating Voltage

The heat pump must operate within specified voltages.

NOTICE

Failure to heed the following may result in damage to equipment.

 

  • Operating equipment under higher or lower voltage conditions may result in damage to your compressor, motors or other electrical components. This damage will not be covered by product warranty.
  1. Measure site voltage. The site voltage MUST be measured under “FULL LOAD” conditions. Activate all equipment using the same electrical panel as the heat pump.
  2. If measured site voltage is outside listed ranges, immediately deactivate equipment until site conditions have been corrected. If unsure of heat pump equipment rating, please see "Identifying Model Specifications" on page 1.
Equipment Rating Minimum Site Voltage Maximum Site Voltage

A Voltage

(208 to 230 Volts)

Single Phase 60 hertz

 200 Volts 253 Volts

B Voltage

(208 to 230 Volts)

Three Phase 60 hertz

 200 Volts 253 Volts

D Voltage

(380 to 420 Volts)

Three Phase 50 hertz

 361 Volts 441 Volts

E Voltage

(380 Volts)

Three Phase 60 hertz

 361 Volts 399 Volts

G Voltage

(460 Volts)

Three Phase 60 hertz

 437 Volts 483 Volts

H Voltage

(200 to 240 Volts)

Single Phase 50 hertz

 180 Volts 264 Volts