HIU compactRAD, with hot water priority circuit, compact residential unit,
hydraulic interface unit for hot water production by continuous flow principle and
transfer of heat to radiator heaters. Installation as flush mounted version with
flush box or as surface-mounted version with cover. The pipe connection to the
residential unit hydraulic interface unit is created using a patented installation system with pre-installation bracket. Option to connect the pre-installation bracket from the floor.
Consisting of:
•Copper-soldered asymmetrical stainless steel plate heat exchanger
•HERZ pressure and temperature controller for central regulation of the hot water
temperature with hot water priority circuit
•Control valve with return temperature limiter for low heating return temperature
•Constant readiness for hot water production even in summer, operating mode
due to temperature-regulated bypass switching, permanently set to 45°C
•Cold water meter adapter 80 mm – G 3/4" made of dezincification-resistant brass,
also suitable for continuous operation
•Heat meter adapter 110 mm – G 3/4" made of dezincification-resistant brass, also
suitable for continuous operation
•Strainer with fine mesh in primary supply line
•Strainer with fine mesh in secondary return line
•Differential pressure controller with integrated control valve, shut off
valve and zone valve in the secondary circuit
•Differential pressure controller (25 - 60 kPa) in the primary circuit
• Empty weight model: 15 kg
• Connection: Male thread 3/4" flat sealing
• Nominal pressure: 16 bar
• Max. supply temp. HIU compactRAD: 70 °C
• Max. supply temp. HIU compactRAD with TSR: 85 °C
• Min. flow pressure mains cold water: 2,8 bar
• Circulation pump space heating: -
• Circulation pump domestic hot water: Wilo Star-Z NOVA or similar
11 l/min
• HIU compactRAD without TSR*: 1402147
• HIU compactRAD with TSR*: 1402144
• HIU compactRAD with TSR*, pipes insulated: 1402150
• Domestic hot water circulatiuon set: 1402473
• Flush cabinet short, 90 mm deep: 1402447
• Flush cabinet short, 150 mm deep
(in combination with circulation set): 1402163
• Front frame with door short: 1402448
• Flush cabinet long, stainless steel distributor connection,
150 mm deep: 1402161
• Front frame with door long: 1402162
• Cover HIU compactRAD: 1402409
• Pre-assembly strip HIU compactRAD: 1402449
• Adapter piece for heat meter sensor M 10 x 1 mm: 1402246