Contact Sales 0800 970 4190

HRV4 Q Plus

Mechanical Ventilation with Heat Recovery unit (MVHR)

Introducing the new HRV4 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 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.

TP421HMB,TP431B2,TP431B2/LR-T,TP431B2F/LR-T

Features & Benefits

Extremely low Specific Fan Power; down to 0.38 W/l/s
Highly efficient heat exchanger; up to 91%
Airflow up to 123 l/s (443 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

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 Q Plus Eco HMB aura-t™ ready Fitted with removable filter covers on the front panel	TP421HMB/544 (left hand config)	Energy Rating A
	TP421HMB/RH (right hand config)	Energy Rating A

Eco B2 Models:

aura-t™ B2 onboard as standard (WiFi option available not fitted as standard)
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)

Product Model	Product Code	Energy Rating
HRV4 Q Plus B2 aura-t™ control (LH/RH on site configuration)*	TP431B2/LR-T* (left hand config)	Energy Rating A+
HRV4 Q Plus B2 aura-t™ control (LH/RH on site configuration)*	TP431B2F/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.

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 (%)
Exhaust terminal configuration*	Fan speed setting	2009		2012		10
Kitchen + 1 additional wet room	100% variable	0.41	91%	0.42	91%	0.42	91%
Kitchen + 2 additional wet rooms	100% variable	0.38	91%	0.43	90%	0.43	90%
Kitchen + 3 additional wet rooms	100% variable	0.4	90%	0.5	89%	0.5	89%
Kitchen + 4 additional wet rooms	100% variable	0.45	89%	0.6	88%	0.6	88%
Kitchen + 5 additional wet rooms	100% variable	0.51	89%	0.73	87%	0.73	87%
Kitchen + 6 additional wet rooms	100% variable	0.58	88%	0.9	86%	0.9	86%
Kitchen + 7 additional wet rooms	100% variable	0.7	87%	1.08	86%	1.08	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.

Product	% of Max flow	Airflow	dB(A) @ 3m Hemispherical			dB(A) @ 3m Spherical
Product	% of Max flow	Airflow	Induct Inlet	Induct Outlet	Casing Breakout	Casing Breakout
HRV4 Q Plus Eco	41%	47.9l/s @ 15Pa	29	37	21	18
	65%	80.4l/s @ 41Pa	38	50	31	28
	100%	123.1l/s @ 100Pa	46	58	41	38