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Installing a 3-Wire 120 VAC or 4-Wire 120/240 VAC Connection for 780
Dover Models, 680 Denali, Tacoma Models
Electrical Tasks After Spa Delivery, Continued
Power Supply Inlets
TB1
Terminal
Ground/
Bonding Lug
Note: TB1 terminal location will vary between models
Hot Tub
Control Box
Figure 6 The Spa Equipment Compartment
Figure 7 The Control Box for Denali,
Dover, and Tacoma Models
The 3-wire, 120 VAC connection is
illustrated. The location of the TB1 terminal
may vary between models.
Figure 8 Standard 3-wire, 120 VAC
connection for Denali, Dover and Tacoma
models.
Use the supplied GFCI cord for installations
in the USA. Otherwise, hard wire a 3-wire
connection.
Figure 9 Standard 4-wire, 240/120 VAC
connection for Denali, Dover and Tacoma
models. Move red wire to terminal position
#3 as shown. (Hard wired connections only).
TB1
Green
To spa
circuit
White
(Neutral)
Black (L)
White
Black
Red
External Power
TB1
White
(Neutral)
Red (L2)
Green
Black (L1)
To spa
circuit
To spa
circuit
White
Black
Red
External Power