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Inground Spas
LTR20111002, Rev. A
Preparing for Your New Inground Spa
www.calspas.com
15
All 230V spas must be permanently connected (hard
wired) to the power supply. These instructions de-
scribe the only acceptable electrical wiring procedure.
Spas wired in any other way will void your warranty
and may result in serious injury.
This the only acceptable electrical wiring procedure.
Spas wired in any other way will void your warranty.
See the wiring diagram on page 16.
The electrical wiring of this spa must meet the re-
quirements of 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.
RCD and Wiring Requirements
The power supplied to the spa must be on a dedi-
cated RCD protected circuit with no other appliances
or lights sharing the power.
Use copper wire with THHN insulation. Do not use
aluminum wire.
Use the table below to determine your GFCI and wir-
ing requirements.
Wire runs over 85 feet must increase wire gauge to
the next lower number. For example: A normal 50
amp RCD with four #8 AWG copper wires run over
85 feet would require you to go to four #6 AWG cop-
per wires.
Testing the RCD Breaker
Test the RCD breaker prior to rst use and periodical-
ly when the spa is powered. To test the RCD breaker
follow these instructions (spa should be operating):
Press the TEST button on the RCD. The RCD will 1.
trip and the spa will shut off.
Reset the RCD 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.
Electrical Installation -- Europe
Spa Model GFCI Required Wires Required
Designer inground spas with one 3
kW heater
One 32 amp RCD or two 16 amp
RCDs
Four #10 AWG copper wires
Designer inground spa with one 3
kW heater and one 5.5 kW heater
Service 1: One 32 amp RCD or
two 16 amp RCDs
Service 2: One 32 amp RCD or
two 16 amp RCDs
Service 1: Four #10 AWG copper
wires
Service 2: Three #10 AWG copper
wires