vTherm°e Heat Interface Unit - Electronically Controlled HIU
Verified by manufacturer 1 month ago
vTherm°e Standard
vTherm°e Standard
QA Certificate
Certificate type
Electronically controlled heat interface unit.
Application
For domestic applications on heat networks or communal heating systems.
Description
Electronically controlled twin plate hydraulic heat interface unit (HIU), designed to provide instantaneous hot water and heating to the dwelling.
Features and benefits:
- Domestic hot water (DHW) output up to 60 kW.
- Heating (HTG) output up to 10 kW.
- DHW and HTG controlled by pressure independent control valves (PICVs).
- Fully insulated expanded polypropylene (EPP) casing.
- Innovative cooling area to reduce ambient temperatures to extend component life.
- Heat meter and pressure gauge visible with casing installed.
- Insulated case constructed in three sections to improve access for maintenance and commissioning.
- Standing heat loss of: 60 or 70°C: 31 W.
- vTherm°e achieved the lowest Volume-Weighted Average Return Temperatures (VWART) at a primary flow temperature of 60°C of any BESA tested HIU: 70°C: 27.9°C (VWART). 60°C: 29°C (VWART).
- In periods with no DHW or heating demand, the HIUs standing heat loss shall be a maximum of 32 W.
- WRAS approved.
Material:
- Pipes, fittings, valves (primary and heating): 1.4301 (AISI 304), CW617N, CW614N, CW602N, CW625N, GG15.
- Pipes, fittings, valves (domestic hot water): 1.4404 (AISI 316L), CW617N, CW617N, CW602N.
- Heat exchanger: 1.4404 (AISI 316L) Cu Brazing.
- Insulation: Expanded polypropylene (EPP).
Some additional materials are used by component manufacturers such as valves and pumps. These are in small components within the assembly.
General information
Color | Black Grey |
Finish | Matt Textured |
Material | Polypropylene Guidance for specification option: Casing. |
Shape | Rectangle |
Length | 690 mm |
Width | 530 mm |
Height | 250 mm |
Warranty description | One year Guidance for specification option: One year from date of commissioning on replacement parts only. |
Uniclass | |
CAWS | T90/110 Heating system T90/110 Heating system |
Specification data - Heat interface units
Duty | |
Primary flow temperature | 60–90°C. |
Primary return temperature | 70°C Primary Flow = 27.9°C; 60°C Primary Flow = 29°C (Volume-Weighted Average Return Temperatures (VWART)). |
Pressure drop | <50 kPa (primary side), <10 kPa (heating). |
Flow rate | 0.32 L/s. |
Heating supply temperature | Maximum 80°C. |
Hot water supply temperature | Maximum 60°C. |
Casing | Fully insulated EPP casing. |
Insulation | Expanded polypropylene. |
Components | |
Primary | Manufacturer's standard. |
Secondary | Manufacturer's standard. |
Controls | Electronically controlled. The HIU controller shall utilize the secondary side DHW and heating temperatures to control Pressure Independent Control Valves (PICVs) located on the primary side of both plate heat exchangers to maintain the temperature. A keep warm function maintains a primary flow temperature at the unit. |
Standard | CE, BESA, WRAS. |
Overall sound power level | 31.8 dB. |
Weight | 30 kg (dry), 35 kg (wet). |
Electrical requirements | 230 V, 5 A (50 Hz). Guidance for specification option: Maximum power consumption: 60 W. |
Accessories/ Other requirements | None. Apartment weather compensation. Bluetooth. Flushing bypass assembly. Intelligent data collection. |
Colour | Black. Grey. |
Finish | Matt Textured |
Hot water system (HWS) capacity (minimum) | 60 kW. |
HeatingCapacity | 10 kW. |
HWS temperature | 55°C. |
Heating secondary flow temperature (UFH) | 45°C. |
Heating secondary return temperature (UFH) | 35°C. |
Heating secondary flow temperature (Radiators) | 60°C. |
Heating secondary return temperature (Radiators) | 40°C. |
HIU primary pressure rating | 10 bar. Guidance for specification option: Standard. 16 bar. Guidance for specification option: On request. |
Maximum HIU primary differential pressure | 4 bar. |
Maximum secondary heating working pressure: | 2.5 bar. |
Secondary heating safety relief valve pressure | 3 bar. |
Maximum secondary main cold water (MCW)/ domestic hot water (DHW) pressure | 10 bar. |
Minimum MCW pressure | 1 bar. |
Sustainability data
Contains Red List materials | Yes Guidance for specification option: Contains PVC in some cables. |
Country of material origin | Manufacturer guidanceSeveral European countries including Denmark, Germany and Switzerland. |
Country of product manufacture | United Kingdom |
Recyclability | 90%+ of weight |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 90 % |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 Revit | - | 1 |
 IFC | - | 1 |
Third party certifications
QA Certificate
WRAS: Approved
Literature
vTherm°e (Electronic) Datasheet
vTherm°e (Electronic) Installation Commissioning and Maintenance Manual