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HBX EXP-0100 Expansion Module

The EXP-0100 Expansion Module is designed to be integrated with the HBX CPU-1000 HVAC Controller, it is not a standalone control device. The purpose and function of the EXP-0100 is to provide system expansion capabilities. Its primary use is to add additional boiler stages. For example, 1 CPU-1000 + 1 EXP-0100 can provide a total of 4 boiler stages (when configured as a staging control).


Included with EXP-0100:

  • 1 32 Pin Connector
  • 1 Terminal Screwdriver


  • Adds 2 independent 10A dry contact relays (for staging)
  • 1 thermistor input for extra setpoints
  • Can be used with CPU-1000, ECO-1000 and SNO-1000


  • 1 x Thermistor Input (10K Ohm)
  • 1 x Misc. Input Signal (20-240VAC)
  • 2 x Aux. Output Relays (240VAC 10Amps)

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