Sundance Spas 850 Series - Manual (Page 16)

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Power Supply Requirements
0 Maxxus Models
Important: Your qualified technician must perform minor circuit board modifications when either models’ alternate electrical configuration
is used. To avoid damage to the spa, do not activate power until circuit board modifications have been made. We recommend Square-D or
Cutler Hammer Breakers.
Standard 0 Amp -Wire Power Configuration
(Factory Setting for Maximum Heater Performance)
• Required Voltage: 240 VAC (2 Hots, 1 Ground); See diagram page 9.
• Required GFCI Breaker: 60 Amp Dual-pole (Hard Wired Only)
• Number of Wires: Three - Copper Only (Red, Black, Green)*
• Max Spa Current Draw: 48 Amps
In the 60A configuration, the heater will operate while any two jets pumps are running. This may be preferable for owners of hot tubs in cold climates
because it will help the spa maintain water temperature during use.
Alternate 0 Amp -Wire Power Configuration
(For Homes Where 0V/0A Power Is Unavailable)
• Required Voltage: 240 VAC (2 Hots, 1 Ground); See diagram page 9.
• Required GFCI Breaker: 50 Amp Dual-pole (Hard Wired Only)
• Number of Wires: Three - Copper Only (Red, Black, Green)*
• Max Spa Current Draw: 38 Amps
If the household’s electrical service does not have the full 240V/60A power available, the spa may be connected to 240V/50A service if a minor circuit
board modification is performed by your qualiified technician. In this configuration, the heater will yield the same rapid temperature increase as in 60A
operation but
will not operate while two jets pumps are running.
*All models: wire size must meet NEC recommendations and is determined by maximum current draw and length of run.