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Collection: Switch 2 Type 2 HIU

The Type 2 HIU provides a direct connection between primary and secondary heating circuits. Domestic hot water is produced separately via a hot water storage cylinder connected to the unit.


  1. On/Off Valve & Actuator
  2. Y Strainer
  3. DPCV
  4. Balancing Valve
  5. By-Pass Valve
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