Danfoss FHV Data sheet

Data Sheet

FHV Regulating Valve

Application

FHV control valves are ideally suited for controlling the temperature of individual under-floor heated rooms and for systems using floor heating in conjunction with radiators.

Danfoss offers the following versions:

•FHV-R provides temperature control of underfloor heating circuits, using a return temperature limiting valve fitted with a type FJVR sensor element.

•FHV-A enables floor temperature control via a presettable thermostatic valve fitted with a type RA 2000 sensor element.

FHV control valves are flexible to use and easy to install in the floor heating circuit.

With the FHV-A , the integrated presetting simplifies hydraulic balancing of the system. Connections to the ¾” external thread are made with Danfoss compression connectors.

Note!

If using the FHV-A for room temperature control, the flow temperature should not be permitted to exceed the maximum recommended by the floor heating supplier. When the FHV-R is used for controlling floor heating, the heated floor area should not be greater than 10 m².

System Lay-outs

FHV-A

FHV-R

Floor heating system, heating circuit with FHV-A in flow.

Floor temperature control of mixed system, heating circuit with FHV-R in return.

Technical Specifications
	Type	Connection	kvs (m³/h)		Max. pressure			Max. flow temp.
				Working		Differential	Test
	FHV-R	G¾A	0.88	6 bar		0.6 bar	10 bar	90° C
	FHV-A	G¾A	0.04 - 0.79	6 bar		0.6 bar	10 bar	90° C

VDUIC702

© Danfoss

01/2015

1

	Data Sheet	FHV Regulating Valve
	Ordering
		FHV sets (with enclosure box and front cover)	For sensor	Colour	Code no.
		FHV-R set: return temperature limiter valve with air	FJVR	white	003L1000
		vent and bleed key
		FHV-A set: valve with presetting, air vent and bleed key	RA2000	white	003L1001
		FHV-R set: return temperature limiter valve with air	FJVR	white	003L1015
		vent, bleed key and drain tap
		Sensors	Temp. range	Colour	Code no.
		FJVR return temperature limiting sensor	10–50° C	white	003L1040
		FJVR return temperature limiting sensor	10–50° C	chrome	003L1072
		RA2000 room temperature sensor with frost protection,	5–26° C	white	013G2990
		limiting and locking of temperature set-point
		RA2000 room temperature sensor with frost protection,			013G2910
		limiting and locking of temperature set-point,	5–26° C	white
		connection with clamping ring and Allen screw
		RA2000 room temperature sensor with frost protection,	5–26° C	white	013G2994
		limiting and locking of temperature

Accessories

Compression Fittings

Accessory	Code no.
Mounting aid with integrated spirit level	003L1338
Drain key	003L1340
Round front cover for FHV-R / -A	003L1050
Square front cover for FHV-R / -A	003L1052
Extension piece for RA sensors, 17.9 mm	003L1035
Extension piece for FJVR sensors, 17.9 mm	003L1036
Anti theft plugs for RA2000 sensors (50 pcs.)	013G1232
Allen key for RA2000 sensors	013G1236
Threaded range limiting pins for RA2000 sensors (30 pcs.)	013G1237
Gland seal for FHV-R / -A	013G0290

Compression Fitting	Code no.
Compression fittings for PEX tubes, 15 x 2.5 mm	013G4147
Compression fittings for PEX tubes, 16 x 2.2 mm	013G4163
Compression fittings for PEX tubes, 18 x 2.5 mm	013G4159
Compression fittings for PEX tubes, 20 x 2.5 mm	013G4161
Compression fittings for ALUPEX tubes, 14 x 2 mm	013G4184
Compression fittings for ALUPEX tubes, 16 x 2 mm	013G4186
Compression fittings for ALUPEX tubes, 18 x 2 mm	013G4188
Compression fittings for ALUPEX tubes, 20 x 2 mm	013G4190

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VDUIC702

© Danfoss

01/2015