Use and Care Manual
Coleman Roto Mold Spa (online sales)
LTR50001136, Rev. A
Preparing for Your New Portable Spa
6
240V GFCI and Wiring Requirements
The control system is set at the factory to run on the low power setting for 40 amp operation. This is the 
default setting. Spa owners can have their installer change this setting so the spa will run on high power for 
50 amp operation.
Warning: Never set a spa to run on high power without installing a properly rated GFCI.
Power Mode GFCI Required Wires Required
Power saver mode
This is the factory default setting.
One 30 amp GFCI Four #8 AWG copper wires
High power setting
See confi guration instructions on the next page.
One 40 amp GFCI Four #8 AWG copper wires
All 240V spas must be permanently connected (hard-
wired) to the power supply. See the wiring diagram 
on page 8 .
These  instructions  describe  the  only  accept-
able  electrical  wiring  procedure.  Spas  wired 
in any other way will void your warranty and 
may result in serious injury.
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.
240 Volt Electrical Installation
Use the table below to determine your GFCI and wir-
ing 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 cop-
per 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.
Testing the GFCI Breaker
Test the GFCI breaker prior to  rst use and periodical-
ly when the spa is powered. To test the GFCI breaker 
follow these instructions (spa should be operating):
Press the TEST button on the GFCI. The GFCI will 1. 
trip and the spa will shut off.
Reset the GFCI breaker by switching the breaker 2. 
to  the  full  OFF  position,  wait  a  moment,  then 
turn the breaker back on. The spa should have 
power again.
The electrical circuit must be installed by an 
electrical contractor and approved by a local 
building or electrical inspector.
Failure to comply with state and local codes 
may result in  re or personal injury and will 
be the sole responsibility of the spa owner.
The power  supplied to  the  spa must  be on  a dedi-
cated  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.










