Hi,
I am installing a new K-1174-GCW Underscore BubbleMassage Bath with Bask, and the electrical requirements are unclear and contradictory so I need some technical help please.
The Kohler spec sheet says (Document 1201699-4-B, Page 2),
"Dedicated circuit required, protected with Class A Ground-Fault Circuit-Interrupter (GFCI) or Residual Current Device (RCD): 220-240 V, 15 A, 50/60 Hz"
The Kohler installation manual (Document 1204120-2-A, Page 8) provides a detailed schematic indicating a "Control Power Junction Box" with multiple wires coming in from the Heated Surface and the tub Control, and mapping these to L1 and L2 of a two-pole 240V GFCI in the breaker panel, with NO connection to Neutral.
All fine and good - except that my tub shipped with a single 120V 3-prong plug coming out of the wiring box beneath the tub - obviously designed to plug into a 120V outlet - and opening the wiring box of the tub reveals only Hot (black), Neutral (white) and Ground (green) wires. In other words, only 120V wiring, not the 240V as described in the installation manual and spec sheet.
So does it require 240V, or only 120V? Anyone have any idea or input (I wrote Kohler but no response)? THANKS!
I am installing a new K-1174-GCW Underscore BubbleMassage Bath with Bask, and the electrical requirements are unclear and contradictory so I need some technical help please.
The Kohler spec sheet says (Document 1201699-4-B, Page 2),
"Dedicated circuit required, protected with Class A Ground-Fault Circuit-Interrupter (GFCI) or Residual Current Device (RCD): 220-240 V, 15 A, 50/60 Hz"
The Kohler installation manual (Document 1204120-2-A, Page 8) provides a detailed schematic indicating a "Control Power Junction Box" with multiple wires coming in from the Heated Surface and the tub Control, and mapping these to L1 and L2 of a two-pole 240V GFCI in the breaker panel, with NO connection to Neutral.
All fine and good - except that my tub shipped with a single 120V 3-prong plug coming out of the wiring box beneath the tub - obviously designed to plug into a 120V outlet - and opening the wiring box of the tub reveals only Hot (black), Neutral (white) and Ground (green) wires. In other words, only 120V wiring, not the 240V as described in the installation manual and spec sheet.
So does it require 240V, or only 120V? Anyone have any idea or input (I wrote Kohler but no response)? THANKS!