Dantherm RCV 640 P2-CF - residential ventilation unit

Attic and wall-mounted home ventilation units

The RCV 640 P2-CF is a highly efficient and very compact residential ventilation unit for houses, and villas.

Based on patent technology and an ingenious design, it is delivered as a true plug and play solution with a built-in control panel and all necessary parts for on-site wall installation.

Heat recovery takes place in a highly efficient counter-flow heat exchanger, which is able to achieve optimum efficiency with the least possible loss of pressure in connection with the low air volumes used in housing.

All units come with a galvanised metal surface finish.

RCV 480 E2-CF	16 available ducting combinations - right setup
16 available ducting combinations - left setup	Flexible duct seals can be applied where appropriate
Flexible duct seals can be applied where appropriate

Key features

Built-in humidity sensor that intelligently reduces energy consumption when the ventilation demand is low
Patent-pending Constant Flow function that precisely maintains airflow regardless of variations in static pressure
Advanced free cooling logic that automatically increases airflow and utilises cool night air to lower indoor temperatures
Electronic mirroring of the system, ensuring flexible installation in both left and right configurations
Stove/fireplace mode that temporarily increases the internal pressure to optimise chimney draught during lighting
EC fan motors with very low energy consumption and extremely low SEL value for efficient operation
Flexible duct connections at the top, sides or bottom, providing optimal integration options in various installations
Compact design that minimises space requirements without compromising capacity or service access
User-friendly mobile app for Android and iOS that provides access to control and monitoring
Extensive range of internal and external accessories that support both customisation and extended functionality

Third party testing and certification

ErP: Compliant with EU regulations for Eco-design
Nordic Swan Ecolabel: Listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings
EPD: Pending: Environmental product declaration for declared product variant is available in the epddanmark.dk database

Product specifications

Specifications	Units	RCV 640P2-CF
Max. achievable flow at 100Pa	V \| m³/h	640
Max. declared flow at 100Pa	Vmax \| m³/h	450
Recommended operating range	V \| m³/h	80–450
Operating range Passivhaus at 100Pa	VPHI \| m³/h	n/a
EN 13141-7 reference flow at 50Pa	VREF \| m³/h	315
Constant flow		Yes
Performance
Thermal efficiency in accordance with EN13141-7	ηSUP \| %	86
Thermal efficiency in accordance with PHI	ηSUP \| %	n/a
Leakage (external and internal) in accordance with EN 13141-7		<2% (Class A1)
Filters in accordance with ISO16890		ISO Coarse 75% (optional on supply: ePM1>50% )
Filters in accordance with EN779		G4 (optional on supply: F7)
Installation surrounding temperature	tSURR \| °C	-12 to +45
Outdoor temperature without preheater installed	tODA \| °C	-12* to +45
Outdoor temperature with preheater installed	tODA \| °C	-20 to +45
Operation ensured by internal preheater (accessory)
At outdoor temp. down to -7 °C and air flow up to	m³/h	380
At outdoor temp. down to -10 °C and air flow up to	m³/h	335
At outdoor temp. down to -15 °C and air flow up to	m³/h	250
Operation ensured by external preheater (accessory)
At outdoor temp. down to -15 °C and air flow up to	m³/h	600
Maximum absolute humidity of extract air	g/kg	10
Cabinet
Dimensions (without bracket)	w x d x h \| mm	790 x 713 x 643**
Spigots/ducts connections	Ø \| mm	200 – female
Weight	kg	43.5
Thermal conductivity – polystyrene insulation	λ \| W/mK	0.031
Heat transition figures – polystyrene insulation	U \| W/m²K	U<1
Fire classification of the polystyrene insulation	class	DIN 4102-1 class B2 EN 13501 class E
Drainage hose included	Ø/length \| "/m	ø¾" – 1m
Cabinet colour	RAL	galvanised metal grey
Electrical
Voltage	U \| V	230
Maximum power consumption (without/with preheater)	P \| W	345/2195
Frequency	f \| Hz	50
Protection class		IP21