Electrical Requirements
Standards
| Standards | Title |
|---|---|
| NFPA 70, Nat'l Elec. Code 2017 | The electrical installation must conform to the current version of the National Electric Code (NEC), and all applicable local and state codes |
| IEC 60335-1 | Household and similar electrical appliances - Safety - General Requirements |
| IEC 60335-2 | Household and similar electrical appliances - Safety – Particular requirements for electrical heat pumps, air-conditioners, and dehumidifiers |
| UL 1995 & CSA C22.2 No. 236-15 |
Standard for Safety - Heating and cooling equipment |
Grounding and Bonding
Follow local code requirements for proper grounding and bonding of heat pump equipment.
- A bonding lug has been provided on the heat pump.
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 the heat pump. Sizing is based on data plate information, wire size, wiring devices, and over-current protection per applicable local codes and standards.
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 the product warranty.
- 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.
- 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
| 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 |