HIU compactfloor heating, compact residential unit, hydraulic interface unit for
hot water production by 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 plate heat exchanger
•HERZ pressure and temperature controller for central regulation of the hot water
temperature
• 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
•Fixed value control with setting range 20°C – 50°C consisting of zone valve,
thermostat with contact sensor, safety thermostat and circulating pump
• 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 module: 15 kg
• Connection: Male thread 3/4“ flat sealing
• Nominal pressure: 10 bar
• Max. supply temp. HIU compactUFH: 70 °C
• Max. supply temperature HIU compactUFH with TSR*: 85 °C
• Min. flow pressure mains cold water: 2,8 bar
• Circulation pump space heating: Wilo Para RS 15/6 (SCU) or similar
• Circulation pump domestic hot water circulation: Wilo Star-Z NOVA or similar
11 l/min
• HIU compactUFH without TSR*: 1 4021 29
• HIU compactUFH with TSR*: 1 4021 26
• HIU compactUFH with TSR*, pipes insulated: 1 4021 32
• HIU compactRAD 55 WW TSR: 1 4025 75
• HIU compactRAD 55 WW TSR, insulated: 1 4025 78
• Domestic hot water circulation set: 1 4024 73
• Flush cabinet short, 90 mm deep: 1 4024 47
• Flush cabinet short,150 mm deep
(in combination with circulation set): 1 4021 63
• Front frame with door short: 1 4024 48
• Flush cabinet long, stainless steel distributor connection,
150 mm deep: 1 4021 61
• Front frame with door long: 1 4021 62
• Cover HIU compactUFH: 1 4024 09
• Pre-assembly strip HIU compactUFH: 1 4024 49
• Adapter piece for heat meter sensor M 10 x 1 mm: 1 4022 46
15 l/min
•HIU compactUFH without TSR*: 1 4021 30
• HIU compactUFH with TSR*: 1 4021 27
• HIU compactUFH with TSR*, pipes insulated: 1 4021 33
• HIU compactRAD 55 WW TSR: 1 4025 76
• HIU compactRAD 55 WW TSR, insulated: 1 4025 79
18 l/min
• HIU compactUFH without TSR*: 1 4024 42
• HIU compactUFH with TSR*: 1 4024 87
• HIU compactUFH with TSR*, pipes insulated: 1 4024 92
• HIU compactRAD 55 WW TSR: 1 4025 77
• HIU compactRAD 55 WW TSR, insulated: 1 4025 80
22 l/min
• HIU compactUFH without TSR*: 1 4021 31
• HIU compactUFH with TSR*: 1 4021 28
• HIU compactUFH with TSR*, pipes insulated: 1 4021 34
Code | Description |
|
---|---|---|
1 4021 29 | HIU compactUFH without TSR, 11 l/min |
|
1 4021 26 | HIU compactUFH with TSR, 11 l/min |
|
1 4021 32 | HIU compactUFH with TSR*, pipes insulated, 11 l/min |
|
1 4021 30 | HIU compactUFH without TSR, 15 l/min |
|
1 4021 27 | HIU compactUFH with TSR, 15 l/min |
|
1 4021 33 | HIU compactUFH with TSR*, pipes insulated, 15 l/min |
|
1 4024 42 | HIU compactUFH without TSR, 18 l/min |
|
1 4024 87 | HIU compactUFH with TSR, 18 l/min |
|
1 4024 92 | HIU compactUFH with TSR*, pipes insulated, 18 l/min |
|
1 4021 31 | HIU compactUFH without TSR, 22 l/min |
|
1 4021 28 | HIU compactUFH with TSR, 22 l/min |
|
1 4021 34 | HIU compactUFH with TSR*, pipes insulated, 22 l/min |
|
Accessories for HERZ HIU compact and HIU LEN
HERZ Stainless steel manifold for HIUs With flowmeter (3 l/min), DN 25, consisting of return manifold with thermostatic valves (M 28 x 1.5), flow manifold with flowmeter inserts. Manifold connection with internal thread G 1", manifold outlets with G ¾" Euro cone. For use in 1 4061 21 Flush-mounted cabinet long for HIU compact accessories clamp sets (1 6098 xx) are to be to be ordered separately.
Order number | Description | Dim. | Sale Unit |
1 4023 93 | HERZ Stainless steel manifold for HIUs | 3x | 1 |
1 4023 94 | HERZ Stainless steel manifold for HIUs | 4x | 1 |
1 4023 95 | HERZ Stainless steel manifold for HIUs | 5x | 1 |
1 4023 96 | HERZ Stainless steel manifold for HIUs | 6x | 1 |
1 4023 93 | HERZ Stainless steel manifold for HIUs | 7x | 1 |
1 4023 98 | HERZ Stainless steel manifold for HIUs | 8x | 1 |
1 4023 99 | HERZ Stainless steel manifold for HIUs | 9x | 1 |
1 4023 90 | HERZ Stainless steel manifold for HIUs | 10x | 1 |