Sundance Spas 850 Series - Manual (Page 22)

22
Power Supply Requirements
680 Burlington, Hartford, Hawthorne Models
Important: Your qualified technician must perform minor circuit board modifications when either models’ alternate electrical configuration
is used. To avoid damage to the hot tub, do not activate power until circuit board modifications have been made. We recommend Square-
D or Cutler Hammer Breakers.
Standard 50 Amp 3-Wire Power Connection
(Factory Setting)
• 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: 36 Amps
In the 50A configuration, the heater will not operate while both jet pumps are running in high speed. Note: jets pump 2 runs only in high speed.
Alternate 40 Amp 3-Wire Power Connection
(For Homes Where 240V/50A Or 240V 60A Power is Unavailable)
• Required Voltage: 240 VAC (2 Hots, 1 Ground); See diagram page 9.
• Required GFCI Breaker: 40 Amp Dual-Pole (Hard Wired Only)
• Number of Wires: Three - Copper Only (Red, Black, Green)*
• Max Spa Current Draw: 26 Amps
If the household’s electrical service does not have the full 240V/50A power available, the spa may be connected to 240V/40A service if a minor circuit
board modification is performed by your qualified technician. In this configuration, the heater will yield the same rapid temperature increase as in 50A or
60A operation but
will not operate while either jets pump is running in high speed. Note: jets pump 2 runs only in high speed.
Alternate 60 Amp 3-Wire Power Connection
(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: 45 Amps
In the 60A configuration, the heater will operate while both jet pumps are running in high speed. Note: jets pump 2 runs only in high speed. This may be
preferable for owners of spas in cold climates because it will help the spa maintain water temperature during use.
*All models: wire size must meet NEC recommendations and is determined by maximum current draw and length of run.