Sundance Spas 850 Series - Manual (Page 21)

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Power Supply Requirements
0 Denali, Tacoma 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 1 Amp -Wire Power Configuration
(Factory Setting with 1KW Heater Output)
• Required Voltage: 120 VAC (1 Hot, 1 Neutral, 1 Ground); See diagram page 10.
• Required GFCI Breaker: *Supplied 15 Amp Single-Pole GFCI Cord (US Only) or 15A Single-Pole GFCI Breaker (Purchased Separately)
• Number of Wires: Three - Copper Only (Black, White, Green)*
• Max Spa Current Draw: 12 Amps
In 15A configuration, the heater will not operate while the jets pump is running in high-speed. *The spa must be located no more than 10 feet from a
dedicated grounded, grounding type electrical outlet so that the supplied GFCI power cord can be plugged directly into it (US Models Only). DO NOT
USE AN EXTENSION CORD. If spa is more than 10 feet from an outlet it must be hard wired to a 15A single-pole GFCI breaker (purchased separately).
Alternate 0 Amp -Wire Power Connection
(For Enhanced kW Heater Performance)
• Required Voltage: 240 VAC (2 Hots, 1 Neutral, 1 Ground); See diagram page 11.
• Required GFCI Breaker: 30 Amp Dual-Pole (Hard Wired Only)
• Number of Wires: Four - Copper Only (Red, Black, White, Green)*
• Max Spa Current Draw: 21 Amps
If the household’s electrical service does not have the full 240V/40A power available, the spa may be connected to 240V/30A 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 40A
operation but
will not operate while the jets pump is running in high speed.
Alternate 0 Amp -Wire Power Connection
(For Enhanced KW Heater Operation)
• Required Voltage: 240 VAC (2 Hots, 1 Neutral, 1 Ground); See diagram page 11.
• Required GFCI Breaker: 40 Amp Dual-Pole (Hard Wired Only)
• Number of Wires: Four - Copper Only (Red, Black, White, Green)*
• Max Spa Current Draw: 30 Amps
In the 40A configuration, the heater will operate while the jets pump is running 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.