HRV4.25 Q Plus
Overview
Introducing the new HRV4.25 Q Plus: a powerful yet compact, continuously running whole-house ventilation unit with heat recovery. It is suitable for larger dwellings and has been independently tested by the BRE. The HRV4.25 Q Plus delivers cutting-edge performance usually only associated with much larger and more expensive products.
The combination of very low power consumption and a highly efficient heat exchanger is specifically designed to enhance SAP performance via Appendix Q, yet small enough to be easily incorporated into medium sized dwellings.
Recognised and listed in the UK Product Characteristics Database and includes intelligent humidity options through controller options.
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Features & Benefits
- Extremely low Specific Fan Power; down to 0.43 W/l/s
- Highly efficient heat exchanger; up to 91%
- Airflow up to 158 l/s (568 m3/h) at 100 Pa
- Intelligent controller, quick and easy to commission
- Fully adjustable boost overrun timer 0-60 minutes; use with non-latching (momentary) switches to prevent unit from being accidentally left in boost mode
- Accepts 150mm and 160mm diameter ducting, no adaptors required
- Intelligent frost protection (B2 and HMB), stepped reduction of supply air rates prevents HRV unit from freezing (B2 model only)
- Setback facility to reduce ventilation where local regulations allow
- ISO Coarse 85% (G4) filters as standard
- Quick fix mounting bracket
- IP32 rating
- Patented
- Independent fan adjustment
- Effective in reducing pollutants in the home and improving Indoor Air Quality (IAQ), therefore reducing
- Intelligent Summer Bypass & humidity controls
- SUMMERboost® facility
Technical Information
Technical Information
Product Codes and Specific Features
Eco HMB Models:
- aura-t™ HMB controller available as standalone only
- Fitted with removable filter covers on the front panel
| Product Model | Product Code | Energy Rating |
| HRV4.25 Q Plus Eco HMB aura-t™ HMB ready Fitted with removable filter covers on the front panel |
TP423HMB/544 (left hand config) |
Energy Rating A |
| TP423HMB/RH (right hand config) |
Eco B2 Models:
- aura-t™ B2 onboard as standard with WiFi compatibility
- Front panel; drop down filter flap panel or removable filter covers option available
- On site configured to either a LH or RH
- Full MODBUS connectivity
- BMS compatible via RS485 (subject to limitations, additional software requirements and specification with any order)
- Low voltage switching (x 3) and live switch (x 2)
- 4 x 0-10v proportional inputs for local demand control room sensors
- Duct Pre-heater control (requires independent power supply)
- Low voltage switching (x 3) and live switch (x 2)
- 4 x 0-10v proportional inputs for local demand control room sensors
| Product Model | Product Code | Energy Rating |
| HRV4.25 Q Plus B2 aura-t™ control* Fitted with removable filter covers on the front panel |
TP433B2/LR-T* (left hand config) |
Energy Rating A+ |
| HRV4.25 Q Plus B2 aura-t™ control* Fitted with drop down filter flap panel |
TP433B2F/LR-T* (left hand config) |
Energy Rating A+ |
*Standard supply always LH
Filters:
ISO Coarse 85% (G4) filters fitted as standard.
Standards
Conforms to requirements of UK statutory Building Regulations and Technical Standards for Ventilation and BRE 398.
SAP Appendix Q tested.
Exceeds requirements of Building Regulations Approved Document L (England & Wales).
EU RoHS Directive compliant.
Conforms to requirements of EC council directives relating to Electromagnetic Compatibility and Electrical Safety:
2006/95/EC (LVD), 2004/108/EC (EMC). EN 60335-1:2002/A2:2006, EN 60335-2- 80:2003/A1:2004.
CE and UKCA marked.
Specification
Dimensions: 600mm wide x 602mm high (excluding ports) x 477mm deep (487mm with mounting bracket)
Weight: 28.5kg.
Finish: White Paint (RAL9016 Semi-gloss Traffic White).
Materials;
Housing: Zintec sheet steel housing, powder coated white.
Internals: Expanded polypropylene (EPP).
Heat exchanger: Made from high quality PET (Polyethylene terephthalate) materials
Internal insulation: Closed cell foamed Nitrile rubber, class ‘O’ fire rating.
Standard filters: Grade ISO Coarse 85% (G4) synthetic filters.
Guarantee period: 3 years (UK only).
Electrical: 230V ~ 50/60Hz, 3A fuse.
Installation: To be installed accordance with the relevant and applicable building regulations.
Maintenance: Service and filter replacement subject to local environment – see product manual.
Acoustics: Full acoustic data.
Performance
|
Exhaust terminal configuration*
|
Fan speed setting
|
Specific fan power (W/l/s)
|
Heat exchange efficiency (%)
|
Specific fan power (W/l/s)
|
Heat exchange efficiency (%)
|
Specific fan power (W/l/s)
|
Heat exchange efficiency (%)
|
|
2009
|
2012
|
10 | |||||
|
Kitchen + 1 additional wet room
|
100% variable
|
0.46 | 91% | 0.47 | 91% | 0.47 | 91% |
|
Kitchen + 2 additional wet rooms
|
100% variable
|
0.43 | 91% | 0.49 | 90% | 0.49 | 90% |
|
Kitchen + 3 additional wet rooms
|
100% variable
|
0.44 | 90% | 0.54 | 89% | 0.54 | 89% |
|
Kitchen + 4 additional wet rooms
|
100% variable
|
0.49 | 89% | 0.65 | 88% | 0.65 | 88% |
|
Kitchen + 5 additional wet rooms
|
100% variable
|
0.55 | 89% | 0.75 | 87% | 0.75 | 87% |
|
Kitchen + 6 additional wet rooms
|
100% variable
|
0.63 | 88% | 0.91 | 86% | 0.91 | 86% |
|
Kitchen + 7 additional wet rooms
|
100% variable
|
0.73 | 87% | 1.09 | 86% | 1.09 | 86% |
Figures taken from the BRE Test Results.
*Number of wet rooms is based on SAP Q test criteria and does not correlate directly with regulatory performance requirements.
Performance Curve
*@FID (0 Pa)
All units offer 100% variable speed control.
Acoustic Data
|
Product
|
% of Max flow
|
Airflow
|
dB(A) @ 3m Hemispherical
|
dB(A) @ 3m Spherical
|
||
|
Induct Inlet
|
Induct Outlet
|
Casing Breakout
|
Casing Breakout
|
|||
|
HRV4.25 Q Plus Eco
|
41% | 57.8l/s @ 15Pa | 41 | 45 | 27 | 24 |
| 65% | 104l/s @ 46Pa | 44 | 56 | 36 | 33 | |
| 100% | 157.8l/s @ 100Pa | 50 | 64 | 47 | 44 | |
All acoustic data is third party tested at Sound Research Laboratories (SRL) Ltd.
Documentation
Resources
Manuals and Documentation
Product Manual – HRV (HMB Models)
URL for Product Manual – HRV (HMB Models) copied to clipboard.
Product Manual – HRV (B2 Models)
URL for Product Manual – HRV (B2 Models) copied to clipboard.
MVHR/HRV Drain Conversion - Datasheet
URL for MVHR/HRV Drain Conversion - Datasheet copied to clipboard.
Catalogues
Ventilation Product Overview Brochure
URL for Ventilation Product Overview Brochure copied to clipboard.
MVHR - Overview Brochure (Export Version)
URL for MVHR - Overview Brochure (Export Version) copied to clipboard.
HRV4.25 Q Plus – Catalogue Page
URL for HRV4.25 Q Plus – Catalogue Page copied to clipboard.
Acoustic Information
HRV4.25 Q Plus - Acoustic Performance
URL for HRV4.25 Q Plus - Acoustic Performance copied to clipboard.
User Guides
What is MVHR?
URL for What is MVHR? copied to clipboard.
Top 10 Install Problems - Guide
URL for Top 10 Install Problems - Guide copied to clipboard.
NHBC Standards 2020 - Chapter 8.1 (Internal services)
URL for NHBC Standards 2020 - Chapter 8.1 (Internal services) copied to clipboard.
How to change MVHR Filters
URL for How to change MVHR Filters copied to clipboard.
Condensation Drain - User Guide/Installer Guide
URL for Condensation Drain - User Guide/Installer Guide copied to clipboard.
HRV Q Plus - Port Configurations/Airflow Direction (Vertical Units)
URL for HRV Q Plus - Port Configurations/Airflow Direction (Vertical Units) copied to clipboard.
HRV Q Plus - User Guide
URL for HRV Q Plus - User Guide copied to clipboard.
HRV Vertical Mounting Information - User Guide
URL for HRV Vertical Mounting Information - User Guide copied to clipboard.
Test Results
Product Characteristics Database (PCDB) – HRV4.25 Q Plus Test Results
URL for Product Characteristics Database (PCDB) – HRV4.25 Q Plus Test Results copied to clipboard.
URL
How to identify which HRV (MVHR) you have
URL for How to identify which HRV (MVHR) you have copied to clipboard.
Quote and Order Form
Request for Information (R.F.I.) Form
URL for Request for Information (R.F.I.) Form copied to clipboard.
Product Fiches
Product Fiche HRV4.25 Q Plus (TP433 B2)
URL for Product Fiche HRV4.25 Q Plus (TP433 B2) copied to clipboard.
Videos
Video: How to replace filters in a Titon MVHR unit
URL for Video: How to replace filters in a Titon MVHR unit copied to clipboard.
CE Certificate of Conformity
HRV4.25 Q Plus EcoAura Certificate of Conformity (TP433B2F-LR-T)
URL for HRV4.25 Q Plus EcoAura Certificate of Conformity (TP433B2F-LR-T) copied to clipboard.
HRV4.25 Q Plus EcoAura Certificate of Conformity (TP433B2-LR-T)
URL for HRV4.25 Q Plus EcoAura Certificate of Conformity (TP433B2-LR-T) copied to clipboard.
