120 volt electrical installation, 240 volt electrical installation, Preparing for your new portable spa – Cal Spas 6300 User Manual
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Page 4
2008 Portable Spa Owner’s Manual
LTR20081000, Rev. B
Preparing for Your New Portable Spa
120 Volt Electrical Installation
Always follow applicable local, state and federal codes 
and guidelines.
Use only a dedicated electrical line with a 20 amp 
breaker.
Cord-and-plug connections may not use a cord longer 
than 15 feet (4.6 m) and must be plugged into a dedicated 
20 amp GFCI connection (NEC 680.42(A)(2)). Do not 
use extension cords!
Always use a weatherproof-covered receptacle.
Receptacle shall be located not less than 5 feet (1.5 m) 
from and not exceeding 10 feet (3.0 m) from the inside 
wall of the spa. (NEC 680.43(A))
Do not bury the power cord. If your cord becomes 
damaged, replace it before next usage.
All 120V spas must have a GFCI. This can be either a 20 
amp GFCI receptacle or a 20 amp GFCI cord and plug 
kit as shown (CKIT110 - P/N ELE09700086).
Test the GFCI plug prior to first use and periodically when 
the spa is powered. To test the GFCI plug version, follow 
these instructions. (Spa should already be plugged in 
and operational.)
Press the TEST button on the GFCI. The GFCI will trip 
and the spa will stop operating.
Press the RESET button on the GFCI. The GFCI will 
reset and the spa will turn back on.
The spa is now safe to use.
If the GFCI trips while the spa is in use, press the RESET 
button. If the GFCI does not reset, unplug the spa and 
call your local Cal Spas dealer for service. DO NOT USE 
THE SPA!
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 6.
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.
