Model DHX-75 Heating Module Zoom

Model DHX-75 Heating Module


DHX-75 is no longer available at no longer carries this brand. We apologize for the inconvenience.


Application: Heating
Domestic Hot Water
Pipe Size: 3/4"

Description for DHX-75

Please Note: This mechanical module does not ship pre-wired. Documentation on field wiring will be provided

The DHX-75 heating module works well for tankless water heaters when domestic hot water and a hydronic heating system are combined. The components include:

  • Taco X-Pump Block Heat Exchanger - includes dual Taco 008 circulators and outdoor reset for optimal efficiency. This heat exchanger is for domestic and heating hot water separation.
  • Grundfos UPS15-35SFC Stainless Steel 3 Speed Circulator for Primary Loop
  • Honeywell AM-1 Mixing Valve for domestic hot water and all the basic make-up line components
Piping is done in 3/4" Type "L" copper for the same connections on the heat exchanger. The Taco heat exchanger is rated for up to 59,000 BTUs.

Simple Installation:

Bottom Left: Domestic cold water in and mixed domestic hot water out
Top Left: In and out connections to the tankless water heater
Far Right: Hydronic system supply and return
Connect your properly sized expansion tank and relief valve

PLEASE NOTE: The product weighs 34.35 lbs. and may require the use of a
lift gate.
If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.

Model DHX-75 Heating Module

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