vTherm°e
QA Certificate
Certificate type
Electronically controlled heat interface unit.
Application
For domestic applications.
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
Finish | Matt Textured |
Color | Black Grey |
Material | Expanded Polypropylene (EPP) Casing. |
Shape | Rectangular |
Size(l x h x d) | 530 x 690 x 250 mm |
WarrantyDescription | One year from date of commissioning on replacement parts only. |
Uniclass 2015 |
Specification data - Heat interface units Enhanced data
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. |
Product Reference | vTherm°e Standard vTherm°e With Insulated Valve Rail Helps minimize losses. vTherm°e With Insulated Valve Rail And Pipe Bracket Allows for up and down connection. |
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). 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. Standard. 16 bar. 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. |
Environmental information
Contains Red List materials | Yes Contains PVC in some cables. |
Country of material originSeveral European countries including Denmark, Germany and Switzerland. | - |
Country of product manufacture | United Kingdom |
Recyclability | 90%+ of weight |
Digital objects
| Platform | Compatible | Version | Certified to |
|---|---|---|---|
 IFC | - | 1 | 2.1 |
 Revit | - | 1 | 2.1 |
Third party certifications
- WRAS: Approved