Configuration 5 - Master Spas MP Force Owner's Manual

ELECTRICAL REQUIREMENTS
Configuration 5 - 240V, 50A Service & 240V, 30A GFCI Service
Note: Electrical requirements by model is shown in Model Specifications. Only electrical configurations pertain-
ing to the models referenced in this manual are shown.
This configuration requires 2 independent, dedicated services.
A 240V, 50A Service (non-GFCI) & a 240V, 30A GFCI Service
HAVE YOUR ELECTRICIAN READ THE FOLLOWING INFORMATION
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 war-
ranty.
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 8 AWG copper wire and must be con-
nected securely to a grounded metal structure such as a cold water pipe. All Master Spas equip-
ment packs are wired for 240 VAC only. Each of the electrical services for your swim spa must
include a properly rated switch or circuit breaker to open all non-grounded supply conductors to
comply with section 422-20 of the National Electrical Code. A disconnect must be installed and
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 Electric Code. A ground fault is a current leak from any one of the supply conductors
to ground. A GFCI is designed to automatically shut off power to a piece of equipment when a
ground fault is detected. The MP Swim Spas are equipped from the factory with a pre-installed
50A internal GFCI breaker and will not need to have one installed for the 50A service.
The 50A non-GFCI protected service must be 240 volt, 3 wire plus ground (#6 AWG copper
with minimum #8 AWG copper ground). The 30A GFCI protected service must be 240 volt, 3
wire plus ground (#8 AWG copper).
Route services in to the swim spa junction box located inside the spa behind skirt access panel "B"
(see Glossary of Swim Spa Terminology). Refer to wiring schematic inside swim spa junction box
for proper power connections to terminals. The MP Swim Spas are equipped from the factory
with a pre-installed 50A GFCI breaker to power the propulsion system and spa side equipment.
The 50A non-GFCI protected service shall be connected to the appropriate terminals within the
swim spa junction box which feed the internal 50A GFCI. The 30A GFCI protected service shall
be connected to the appropriate terminals within the swim spa junction box to power the swim
side equipment control system. These must be "dedicated" services. The term "dedicated" means
the electrical circuit for the spa is not being used for any other electrical items (patio lights, appli-
ances, 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.
Permanently Connected Equipment Assembly with Pump(s), Heaters, Luminaine, Ozone, Swim Spa
Side Control(s), Pump shut off device, and Audio/Video Components.
Note: Some of the above components may be optional or not available with every swim spa model.
DO NOT DIVE. DO NOT DIVE.
ELECTRICAL REQUIREMENTS
BEFORE INSTALLATION BEGINS
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