Do Not Dive.
13
ELECTRICAL INSTALLATION REQUIREMENTS
HAVE YOUR ELECTRICIAN READ THE FOLLOWING
INFORMATION BEFORE INSTALLATION BEGINS
ELECTRICAL INSTALLATION REQUIREMENTS
HAVE YOUR ELECTRICIAN READ THE FOLLOWING INFORMATION
BEFORE INSTALLATION BEGINS
Electrical connections made improperly, or the use of wire gauge sizes for incurring power
which are too small, may continually blow fuses in the electrical equipment box, may
damage the internal electrical controls and components, may be unsafe and in any case will
void your warranty.
It is the responsibility of the swim spa owner to ensure that electrical connections are
made by a qualified electrician in accordance with the National Electrical Code and any
local and state electrical codes in force at the time of installation.
These connections must be made in accordance with the wiring diagrams found inside
the control box. This equipment has been designed to operate on 60Hz. alternating current
only, 240 volts are required. Make sure that power is not applied while performing any
electrical installation. A copper bonding lug has been provided on the electrical equipment
pack to allow connection to local ground points. The ground wire must be at least 10
AWG copper wire and must be connected securely to a grounded metal structure such as a
cold water pipe. All Master Spas equipment packs are wired for 240 VAC
only. The only electrical supply for your swim spa must include a 50 AMP switch or
circuit breaker to open all non-grounded supply conductors to comply with section 422-20
of the National Electrical Code. The disconnect must be readily accessible to the swim spa
occupants, but installed at least five feet from the swim spa. A Ground-Fault Circuit
Interrupter (GFCI) must be used to comply with section 680-42 of the National Electrical
Code. A ground fault is a current leak from any one o fthe supply conductors to ground. A
GFCI is designed to automatically shut off power to a piece of equipment when a current
fault is detected.
Power hook-up to the spa must be 240 volt 3 wire plus ground (6 AWG copper).
Route the cable into the equipment area for final hook-up to terminals inside the control
panel. The spa must be hooked up to a “dedicated” 240 volt, 50 amp breaker and GFCI.
The term “dedicated” means the electrical circuit for the spa is not being used for any
other electrical items (patio lights, appliances, garage circuits, etc.). If the spa is connected
to a non-dedicated circuit, overloading will result in “nuisance tripping” which requires
resetting of the breaker switch at the house electrical panel.
Rev. 05/01/06
07MS H2X Owners Manual 1/10/07 11:29 PM Page 13
