HIU Salzburg NT, compact residential unit hydraulic interface unit
for hot water production by the continuous flow principle and transfer
of heat to low-temperature heating. 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 counter current heat
exchanger
•HERZ pressure and temperature controller for central regulation of
the hot water temperature with integrated hot water priority circuit
•Differential pressure controller on the heating side, permanently
set to 23 kPa with integrated zone valve, threaded connection for
drives M 28 x 1.5 mm; stroke 4 mm
•Actuating drive for installation on differential pressure controller;
230 V, 50 Hz, normally closed
•Constant readiness for hot water production even in summer
operating mode due to temperature-regulated bypass switching,
permanently set to 45°C
•Fixed value control with setting range 20°C – 50°C consisting of
zone valve, thermostat with contact sensor, safety thermostat and
circulating pump
•Water flow meter adapter, 80 mm – G 3/4" of dezincification-
resistant brass, also suitable for sustained operation
•Cold water meter adapter 80 mm – G 3/4" of dezincification-
resistant brass, also suitable for sustained operation
•Hot water flow meter adapter 80 mm – G 3/4" of dezincification-
resistant brass, also suitable for sustained operation
•Heat meter adapter 110 mm – G 3/4" of dezincification-resistant
brass, also suitable for sustained operation
•Strainer with fine mesh in primary supply line
•Strainer with fine mesh in return line of low-temperature circuit
•Strainer with fine mesh in cold water inlet
• Empty weight model: 18 kg
• Connection: External thread 3/4" conical sealing
• Nominal pressure: 10 bar
• Max. supply temp. HIU Salzburg HT: 85 °C
• Min. flow pressure mains cold water: 2,8 bar
• Circulation pump space heating: Wilo Para RS 15/6 (SCU) or similar
11 l/min
• HIU Salzburg NT: 1402158
• HIU Salzburg NT with pipes insulated: 1402155
• Flush cabinet short, pre-assembly strip, front,
frame and door: 1402405
• Cover HIU Salzburg NT: 1402409
• Pre-assembly strip HIU Salzburg NT: 1402402
• Pressure balancing set: 1402419
• Adapter piece for heat meter sensor M 10 x 1 mm: 1402246
• Flush box with front door and front frame white powder-coated
(RAL 9003); pre-installation bar, rod-type distributor with flow meter
and upper thermostatic insert 1402433-40