Spa Owner's Manual
8
Electrical Requirements
Electrical Requirements – US and Canada
240 Volt Electrical Installation
All 240V spas must be permanently connected (hardwired) to the power 
supply. These instructions describe the  only  acceptable  electrical  wiring 
procedure. Spas wired in any other way will void your warranty and may 
result in serious injury.
This is the only acceptable electrical wiring procedure. Spas wired in any 
other way will void your warranty. See the wiring diagram on page 9.
When installed in the United States, the electrical wiring of this spa must 
meet the requirements of National Electric Code, ANSI/NFPA 70-2008 and 
any applicable local, state, and federal codes. The electrical circuit must 
be installed by an electrical contractor and approved by a local building / 
electrical inspector.
GFCI and Wiring Requirements
The power  supplied to the spa must be on  a dedicated GFCI  protected 
circuit  as  required  by ANSI/NFPA  70  with  no  other  appliances  or  lights 
sharing the power.
Use copper wire with THHN insulation. Do not use aluminum wire.
Use the table  on the next page  to determine your GFCI and  wiring 
requirements.
When NEC requires the use of wires larger than #6 AWG, install a junction 
box near the spa and use #6 AWG wire between the junction box and the 
spa.
Wire runs over 85 feet must increase wire gauge to the next lower number. 
For  example: A  normal  50  amp  GFCI 
with  four  #8  AWG  Copper wires  run 
over 85 feet would require you to go to 
four #6 AWG copper wires.
Read  and  follow  the  heater 
manufacturer’s  safety  and  installation 
instructions  prior  to  installation  and 
operation.  Incorrect  installation  may 
damage  the  heater  and  void  its 
warranty.










