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Free Shipping on qualified orders over $599! Excluding HI, AK & Canada, and products marked Special Handling. *Some Items Excluded*
Free Shipping on qualified orders over $599! Excluding HI, AK & Canada, and products marked Special Handling. *Some Items Excluded*
Helios Solar TDC4 solar thermal control w/ vortex control 3 inputs, 1 std relay & 1 var. sp. relay

Helios Solar TDC4 solar thermal control w/ vortex control 3 inputs, 1 std relay & 1 var. sp. relay

$639.06 - $639.06
$639.06
$639.06 - $639.06
$639.06
SKU 10414
Brand TanklessWaterHeaters
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Product Info


  • Approved to CSA / UL Standards
  • VFS Flow based heat metering
  • 4 x Temperature sensor inputs
  • 1 x VFS sensor input
  • 1 x Triac Variable Speed Output
  • 2 x Relay Output
  • 1 x 0-10V / PWM Speed Output
  • 15 Operating Programs / Modes
  • 60Hz Supply Voltage / 120VAC
  • 2 Amp Fuse
  • 16 Languages

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