Danfoss FHF Data sheet

Data Sheet

FHF Floor Heating Manifold

Application

Manifold with flowmeter

Manifold without flowmeter

The Manifold FHF is used for controlling water flow in under floor heating systems. Each tube of the floor heating system is connected to the manifold, thus making it possible to control water flow or heat supply to each room in the building individually.

The manifold consists of a supply and return manifold. The supply manifold includes possibility for individual shut-off of each circuit and as an option also flowmeter. The return manifold is equipped with integrated Danfoss pre-setting valves securing optimal hydraulic balance in the system.

The valves can be controlled electronically by thermal actuators or act as self-acting units by means of remote temperature adjusters.

The manifold is supplied in modules of up to 12 outlets. In addition extension pieces are available for connecting the manifolds in series. Ball valves are available as an option for positive shut-off between manifold and system.

The end pieces FHF-EM and FHF-EA are supplied with manual airvent or alternatively with automatic airvent, purge valve. The end pieces are placed at the end of the manifold.

System layout

© Danfoss | FEC | 2020.03

AI010286478228en-000601 / VDUDO | 1

Data Sheet	FHF Floor Heating Manifold
Ordering	Description	Type	Code no.
	Manifold set 2+2	FHF-2	088U0502
	Manifold set 3+3	FHF-3	088U0503
	Manifold set 4+4	FHF-4	088U0504
	Manifold set 5+5	FHF-5	088U0505
	Manifold set 6+6	FHF-6	088U0506
	Manifold set 7+7	FHF-7	088U0507
	Manifold set 8+8	FHF-8	088U0508
	Manifold set 9+9	FHF-9	088U0509
	Manifold set 10+10	FHF-10	088U0510
	Manifold set 11+11	FHF-11	088U0511
	Manifold set 12+12	FHF-12	088U0512
	Manifold set 2+2, with flowmeter	FHF-2F	088U0522
	Manifold set 3+3, with flowmeter	FHF-3F	088U0523
	Manifold set 4+4, with flowmeter	FHF-4F	088U0524
	Manifold set 5+5, with flowmeter	FHF-5F	088U0525
	Manifold set 6+6, with flowmeter	FHF-6F	088U0526
	Manifold set 7+7, with flowmeter	FHF-7F	088U0527
	Manifold set 8+8, with flowmeter	FHF-8F	088U0528
	Manifold set 9+9, with flowmeter	FHF-9F	088U0529
	Manifold set 10+10, with flowmeter	FHF-10F	088U0530
	Manifold set 11+11, with flowmeter	FHF-11F	088U0531
	Manifold set 12+12, with flowmeter	FHF-12F	088U0532
	Manifold set 2+2, basic	FHF-2B	088U0542
	Manifold set 3+3, basic	FHF-3B	088U0543
	Manifold set 4+4, basic	FHF-4B	088U0544
	Manifold set 5+5, basic	FHF-5B	088U0545
	Manifold set 6+6, basic	FHF-6B	088U0546
	Manifold set 7+7, basic	FHF-7B	088U0547
	Manifold set 8+8, basic	FHF-8B	088U0548
	Manifold set 9+9, basic	FHF-9B	088U0549
	Manifold set 10+10, basic	FHF-10B	088U0550
	Manifold set 11+11, basic	FHF-11B	088U0551
	Manifold set 12+12, basic	FHF-12B	088U0552
Accessories	Description	Type	Code no.
	End section – automatic airvent and purge valve	FHF-EA	088U0785
	End section – manual airvent and purge valve	FHF-EM	088U0786
	End caps – set	FHF-E	088U0582
	Connection pieces – set	FHF-C	088U0583
	Reduction bushes/pieces – set 1" - 3/4"	FHF-R	088U0584
	Mounting brackets – set	FHF-MB	088U0585
	2 x ball valve 1” with tail piece – for connection to	FHF-BV	088U0822
	manifold and for blocking of floor heating system
	1 x thermometer 0 °C to 60 °C, Ø 35 mm –	FHD-T	088U0029
	for flow/return temperature measurement

2 | © Danfoss | FEC | 2020.03

AI010286478228en-000601 / VDUDO

Data Sheet	FHF Floor Heating Manifold
Accessories	Description		Type	Code no.
	Thermal actuator, 24V, NC, Danfoss RA		TWA-A	088H3110
	connection to valve
	Thermal actuator, 230V, NC, Danfoss RA		TWA-A	088H3112
	connection to valve
	Thermal actuator, 24V, NC, with end switch,		TWA-A	088H3114
	Danfoss RA connection to valve
	Stuffing box for manifolds		DZR	013G0554
	Flowmeter		–	088U0819
	Manifold insulation		–	088U0587
Compression fittings	Description	Size, mm		Code no.
		12	× 2	013G4152
		13	× 2	013G4153
	Compression fittings for PEX tubing in	14	× 2	013G4154
	accordance with ISO 15875.	15	× 2,5	013G4155
	Max working pressure: 6 bar	16	× 1,5	013G4157
	Test pressure: 10 bar	16	× 2	013G4156	1)
	Max, flow temperature: 95 °C
				013G4163
	G ¾” internal thread	16	× 2,2
	Max, flow temperature given by the tube	17	× 2	013G4162
		18	× 2	013G4158
	manufacturer must not be exceeded.
	1) Compression fittings also suitable for PERT	18	× 2,5	013G4159
		20	× 2	013G4160
	tubing in accordance with ISO 15875.
		20	× 2,25	013G4093	1)
		20	× 2,5	013G4161
	Compression fittings for ALUPEX tubing.	12	× 2	013G4182
	Max working pressure: 6 bar	14	× 2	013G4184
		15	× 2,5	013G4185
	Test pressure: 10 bar
	Max flow temperature: 95 °C	16	× 2	013G41862)
	G ¾” Internal thread	16	× 2,25	013G4187
	Max flow temperature given by the tube	18	× 2	013G4188
	manufacturer must not be exceeded.	20	× 2	013G4190
	2) Compression fittings also suitable for PERT/	20	× 2,25	013G40932)
	ALU/PERT tubing.	20	× 2,5	013G4191
	Compression fittings for STEEL and	10		013G4120
		12		013G4122
	COPPER tubing.
	Max working pressure: 6 bar	14		013G4124
		15		013G4125
	Test pressure: 10 bar
	Max flow temperature: 120 °C	16		013G4126
	G ¾” Internal thread	18		013G4128

© Danfoss | FEC | 2020.03

AI010286478228en-000601 / VDUDO | 3