HIU
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Heat Interface Units

HIU

Our heat interface unit provides domestic hot water and space heating for properties that use district heating or centralised boiler plants. Supplied with or without heat meter.

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At a glance

  • Domestic hot water and space heating for properties that use district heating or centralised boiler plants
  • Domestic hot water and central heating on demand with hydraulic system separation and two heat exchangers
  • Domestic hot water and space heating temperature control
  • Domestic hot water heat exchanger to operate on demand only
  • Flexible installation with initial installation bar
  • Optionally integrated heat meter

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Benefits

Overview
  • This unit comprises of two heat exchangers, one for providing instant domestic hot water (DHW) at a regulated temperature and the second for space heating within the property. The unit is indirect so the primary heating circuit is hydraulically separated from the property space heating by a plate heat exchanger and operates only when DHW or space heating is required.
  • Our Heat Interface Unit (HIU) is the perfect solution for providing district hot water and space heating to properties which are serviced from district heating and applications with a centralised plant room.
Construction
  • The HIU is indirect so the primary heating circuit is hydraulically separated from the property space heating by a plate heat exchanger. The unit operates only when DHW or space heating is required ensuring energy efficient operation.
  • The HIU also comes complete with a separate first fix rail pipe work jig which allows for the system to be pre-plumbed before the unit is installed.
  • There are eight variants available.

Technical data

Max. pressure drinking water side
Height
Width
Depth
Net weight
Max. adjustable domestic hot water temperature
Min. adjustable domestic hot water temperature
Part number
HIU KE WITH HM
10 bar
700 mm
440 mm
270 mm
27.1 kg
60°C
30°C
7735600662
HIU KE
10 bar
700 mm
440 mm
270 mm
25.7 kg
60°C
30°C
7735600661
HIU E WITH HM
10 bar
700 mm
440 mm
270 mm
26.1 kg
60°C
30°C
7735600660
HIU E
10 bar
700 mm
440 mm
270 mm
24.7 kg
60°C
30°C
7735600659
HIU WITH HM
10 bar
700 mm
440 mm
270 mm
26.1 kg
60°C
30°C
7735600663
HIU
10 bar
700 mm
440 mm
270 mm
24.6 kg
60°C
30°C
7735600658