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Connection Configuration #3
240 VAC Connections for Denali, Dover, Tacoma Models
(North America 60 Hz)
Red (L2)
Pigtail
Neutral Bus
Ground
TB2
TB1
Black (L1)
White (N)
Green
Main
Service
Panel
with
GFCI
White (N)
Black (L1)
Red (L2)
240 VAC/120 VAC
2-Pole
GFCI
Breaker
Ground/Bonding Lug**
Load Neutral Lug on Breaker
2-Pole Circuit Breaker with 3-Wire Grounded Load Connection
(4 Wires to Hot Tub, 2-Hot (L1-L2), 1-Neutral (N), 1-Ground)
Note: service disconnect not
shown in this diagram.
The control box TB1 terminal
position varies between models.
W B R
Hot Tub
Control Box
Red (L2)
Pigtail
Neutral Bus
Ground
TB2
Black (L1)
GFCI Sub Panel*
Main Panel*
2-Pole
GFCI
Breaker
Ground/Bonding Lug**
Load Neutral Lug on Breaker
Main Panel with Secondary GFCI Shut-Off Box Using a
2-Pole GFCI Breaker with 3-Wire Grounded Connection
(4 Wires to Hot Tub, 2-Hot (L1-L2), 1-Neutral (N), 1-Ground)
White (N)
Green (Ground)
*GFCI Sub Panel commonly
used when recommended GFCI
does not install in Main Panel.
Note: service disconnect not
shown in this diagram.
The control box TB1 terminal
position varies between models.
Red (L2)
TB1
Black (L1)
White (N)
Green
W B R
Hot Tub
Control Box
A pressure sensitive
terminal block (bonding
lug) is attached to the
outside surface of the
load box. This permits
the connection of a
bonding wire between
this point and any metal
equipment chassis,
metal water pipe, or
metal conduit within 5 ft
(1.5m) of the spa. The
bonding wire must be at
least #8 AWG (8.4 mm
²)
solid copper wire.