Hvac Relays

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Circuit Control Board for HB/MB/UCQ Units 120/24-Volts
Circuit Control Board for HB/MB/UCQ Units 120/24-Volts
Item # 2499103

OEM replacement part for First Co. units. AC and heating control board for HB/MB/UCQ units. This board no longer has yellow wire connections.

  • Time delay
  • pump timer
  • fan delays
  • TT connections for boilers

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