
HFB - Airflow management damper

Airflow management damper
Used for different airflow and duct pressure control applications. Pressure-independent operation. Circular VAV and CAV with factory-set airflow range limits option (min./max. airflow rates).
- Control damper for different airflow and duct pressure control applications
- Pressure-independent operation
- Galvanized steel design
- Circular duct connection equipped with integrated rubber gaskets
- Minimum airflow is related to 1 m/s on specific product models
Product Models and Accessories
- Model with shut-off operation; tightness fulfills EN 1751, class 4 requirements (HFB/G and HFB/I)
- Casing tightness fulfills EN 1751, class C requirements
- Model with external insulation
- Several sound attenuator models
- Several airflow controller options
- 1 m/s - minimum airflow - the HFB/G and HFB/I with one of following controller options of EM, EK, EC, EE
- 2 m/s - minimum airflow - any HFB models with controller option of EM, EK, EC, EE, ED, EG
- Electric reheat coil options
- Factory-set airflow range limits (min./max. airflow rates) as an option
The pressure-independent variable airflow control damper is made of galvanised steel, with an airflow measurement probe of aluminium.
The tightness of the control damper in closed position conforms to standard EN1751 class 4 and casing tightness to EN 1751/C.
Duct connection includes integral airtight rubber gaskets.
The management damper section contains airflow measurement, flow controller and damper actuator.
Design airflow range limits are calibrated at the factory.
Controller settings canbe adjustable on site with a PC or a handheld tool.
The airflow controller has control signal input 0...10 VDC or 2 ...10 VDC and output 0...10 VDC for airflow feedback.
Supply power is 24 VAC.
The damper is equipped with a sound attenuator in order to meet the sound level requirement for the room. As an optional extra, the sound attenuator has an access panel for cleaning purposes.
The airflow controller comprises an electric reheat coil with power supply of 230 VAC. Incorporated within the reheat coil has a safety overheat thermostat with both automatic and manual reset. A 3rd party room controller is needed to control the duct heater with 0...10 VDC control signal.
- Dimensions
- Material
- Function
- Product Models
- Sound Attenuators
- Electric Reheat Coils
- Installation
- Commissioning
- Specification
- Order code
Halton HFB
Airflow management damper
- Control damper for different airflow and duct pressure control applications.
- Pressure-independent operation.
- Galvanised steel design.
- Circular duct connection equipped with integrated rubber gaskets.
- Minimum airflow is related to 1 m/s on specific product models.
Product Models and Accessories
- Model with shut-off operation; tightness fulfils EN 1751, class 4 requirements (HFB/G and HFB/I) .
- Casing tightness fulfils EN 1751, class C requirements.
- Model with external insulation.
- Several sound attenuator models.
- Several airflow controller options.
- 1 m/s - minimum airflow - the HFB/G and HFB/I with one of following controller options of EM, EK, EC, EE.
- 2 m/s - minimum airflow - any HFB models with controller option of EM, EK, EC, EE, ED, EG.
- Electric reheat coil options.
- Factory-set airflow range limits (min./max. airflow rates) as an option.
Dimensions ▲
Halton HFB/G, HFB/H
NS | L | L1 | ØD |
100 | 370 | 298 | 99 |
125 | 370 | 298 | 124 |
160 | 370 | 298 | 159 |
200 | 470 | 398 | 199 |
250 | 470 | 398 | 249 |
315 | 470 | 398 | 314 |
400 | 625 | 553 | 399 |
500 | 625 | 553 | 499 |
Halton HFB/I, HFB/J
NS | L | L1 | ØD |
100 | 365 | 293 | 99 |
125 | 365 | 293 | 124 |
160 | 365 | 293 | 159 |
200 | 465 | 393 | 199 |
250 | 465 | 393 | 249 |
315 | 465 | 393 | 314 |
400 | 675 | 603 | 399 |
500 | 675 | 603 | 499 |
Material ▲
Part | Material |
Casing | Galvanised steel |
Damper blade | Galvanised steel |
Shaft | Zinc coated steel |
Bearings | Plastic |
Blade gasket | EPDM Rubber |
Duct gaskets | 1C-polyurethane hybrid |
Measurement probe | Aluminium |
External insulation | Mineral wool (models HFB/I, HFB/J) |
Duct connection gaskets are vulcanised to the casing.
Function ▲
The variable airflow damper Halton HFB contains an averaging airflow measurement probe, airflow controller and actuator. Airflow is controlled based on actual flow measurement by changing the damper blade position. The airflow setpoint can be modified between minimum and maximum settings by, e.g., a room controller with an analogue signal (0...10 or 2...10 VDC). Flow control damper Halton HFB maintains the required airflow independent of duct pressure variation.
The static pressure control damper option maintains the desired constant duct pressure based on a static pressure measurement.
Product Models ▲
The Halton HFB airflow control damper is available in several versions.
The blade gasket enables airtight shut-off operation, and external insulation is used to attenuate radiated sound into the space.
Model | Feature | Tightness |
HFB/G | With blade gasket | EN 1751, class C and class 4 |
HFB/ I | With blade gasket and 50 mm external insulation | EN 1751, class C and class 4 |
HFB/H | No blade gasket | EN 1751, class C |
HFB/J | No blade gasket, with 50 mm external insulation | EN 1751, class C |
Minimum torque for different Halton HFB models:
Product | 5 Nm | 10 Nm |
HFB/G and HFB/I 100...250 | x | |
HFB/G and HFB/I 315...500 | x | |
HFB/H and HFB/J 100...500 | x |
Control units (CU)
The Halton HFB airflow control damper can be equipped with several different control units for either airflow or duct pressure control.
Airflow control
- For supply and exhaust installations.
- Complete shut-off function (HFB/G and HFB/I).
- Maximum differential pressure over the damper of 1000 Pa.
- Operating range: ambient temperature of 0 to 50 ºC.
- Ambient relative humidity < 95%, non-condensing.
Airflow controller options:
EM Halton LMV-D3-MF-F.1 HI (5 Nm - for sizes 100...250)
EK Halton NMV-D3-MF-F.1 HI (10 Nm)
EC Halton LMV-D3-MP-F.1 HI (5 Nm - for sizes 100...250)
EE Halton NMV-D3-MP-F.1 HI (10 Nm)
ED Belimo VRD3 + NM24A-V (10 Nm)
EG Siemens GLB181.1E/3 (10 Nm)
Controller ED includes two potentiometers for minimum and maximum airflow setpoint adjustment (ranges: minimum = 0…80% and maximum = 30…100%).
The adjustable airflow control range is presented in the table below. For airflow controllers EM, EK, EC, EE and EG, the highest available minimum airflow rate equals the specified maximum airflow rate.
Minimum and maximum airflow rates are calculated as percentage of damper's nominal airflow.
For the ED controller, the highest minimum airflow rate is 80% of the specified maximum airflow rate.
Maximum airflow is calculated as percentage of nominal airflow and minimum airflow as percentage of maximum airflow.
Remarks regarding table above :
Minimum airflows
For EM, EK, EC, EE with HFB/G and HFB/I, the minimum airflows are given for 1m/s
For EM, EC with HFB/H and HFB/J, the minimum airflows are given for 2 m/s
For ED, EG with all HFB types, the minimum airflows are given for 2 m/s
Maximum airflows
Maximum airflows are given for 9 m/s
For offices applications, maximum airflows adviced as general selection are given for 6m/s
Maximum airflows possible (sensor range limit) are given for 12 m/s
Pressure control for supply and exhaust installations
- Complete shut-off function (HFB/G and HFB/I).
- Static pressure setpoint range of 30...100 Pa or 90...300 Pa.
- Maximum differential pressure over the damper of 500 Pa.
- Operating range: ambient temperature of 0 to 50 ºC.
- Ambient relative humidity < 95%, non-condensing
Sound Attenuators ▲
Sound attenuators are available with optional outlet diameters with mineral wool (MW) or polyester fibre (PEF) insulation materials and with 600 mm and 1000 mm lenghts. Optionally the attenuator can be equipped with an access panel for cleaning and inspection purposes.
H1...H8 Attenuator without access panel
H11...H18 Attenuator with access panel
The connection (D1) is female type for direct connection to the Halton HFB airflow control damper. The duct connection (D2) is male type and either damper size or one size larger. Technical information is based on bigger of the duct connections (D2).
Diameter D1<= D2 | Material | Lenght mm | Access panel | |
H1 | D1 = D2 | MW | 600 | No |
H2 | D1 = D2 | MW | 1000 | No |
H3 | D1 = D2 | PEF | 600 | No |
H4 | D1 = D2 | PEF | 1000 | No |
H5 | D1 < D2 | MW | 600 | No |
H6 | D1 < D2 | MW | 1000 | No |
H7 | D1 < D2 | PEF | 600 | No |
H8 | D1 < D2 | PEF | 1000 | No |
H11 | D1 = D2 | MW | 600 | Yes |
H12 | D1 = D2 | MW | 1000 | Yes |
H13 | D1 = D2 | PEF | 600 | Yes |
H14 | D1 = D2 | PEF | 1000 | Yes |
H15 | D1 < D2 | MW | 600 | Yes |
H16 | D1 < D2 | MW | 1000 | Yes |
H17 | D1 < D2 | PEF | 600 | Yes |
H18 | D1 < D2 | PEF | 1000 | Yes |
Attenuator dimensions
The picture above describes supply air installation. In exhaust installation the airflow direction is vice versa, from D2 to D1.
D1/D2 | D1/D2 | L nominal | L mm | L2 mm | W mm | H mm | MW Weight kg | PEF Weight kg |
100/100 | 600 | 626 | 22 | 252 | 154 | 5.1 | 4.6 | |
1000 | 1036 | 22 | 252 | 165 | 7.8 | 7.0 | ||
125/125 | 100/125 | 600 | 626 | 22 | 265 | 179 | 5.7 | 5.1 |
1000 | 1036 | 22 | 265 | 179 | 8.6 | 7.6 | ||
160/160 | 125/160 | 600 | 626 | 22 | 282 | 214 | 6.5 | 5.7 |
1000 | 1036 | 22 | 282 | 214 | 9.8 | 8.6 | ||
200/200 | 160/200 | 600 | 626 | 22 | 341 | 254 | 8.2 | 7.2 |
1000 | 1036 | 22 | 341 | 254 | 12.3 | 10.7 | ||
250/250 | 200/250 | 600 | 626 | 32 | 392 | 304 | 10.0 | 8.8 |
1000 | 1036 | 32 | 392 | 304 | 14.8 | 12.8 | ||
315/315 | 250/315 | 600 | 626 | 32 | 458 | 369 | 12.3 | 10.7 |
1000 | 1036 | 32 | 458 | 369 | 18.0 | 15.4 | ||
400/400 | 315/400 | 600 | 626 | 57 | 519 | 455 | 18.9 | 16.9 |
1000 | 1036 | 57 | 519 | 455 | 27.6 | 24.1 | ||
500/500 | 400/500 | 600 | 626 | 57 | 702 | 555 | 28.6 | 24.2 |
1000 | 1036 | 57 | 702 | 555 | 39.1 | 36.1 | ||
500/630 | 600 | 626 | 67 | 832 | 685 | 32.3 | 28.4 | |
1000 | 1036 | 67 | 832 | 685 | 50.3 | 43.8 |
Attenuation data
Material: Mineral wool (MW), frequency band (Hz)
L = 600 | L = 1000 | |||||||||||||||
D2 | 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k | 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k |
100 | 8 | 14 | 18 | 30 | 46 | 47 | 41 | 33 | 12 | 20 | 27 | 42 | 50 | 50 | 50 | 50 |
125 | 6 | 12 | 16 | 27 | 47 | 46 | 40 | 27 | 13 | 15 | 23 | 41 | 50 | 50 | 50 | 35 |
160 | 8 | 10 | 13 | 25 | 37 | 39 | 28 | 20 | 9 | 12 | 21 | 35 | 44 | 50 | 46 | 30 |
200 | 9 | 15 | 13 | 22 | 33 | 34 | 25 | 17 | 9 | 11 | 21 | 36 | 45 | 50 | 33 | 19 |
250 | 6 | 7 | 11 | 18 | 27 | 27 | 18 | 14 | 8 | 9 | 19 | 29 | 41 | 40 | 21 | 16 |
315 | 5 | 5 | 11 | 15 | 19 | 15 | 12 | 8 | 7 | 7 | 18 | 25 | 38 | 28 | 18 | 12 |
400 | 3 | 2 | 9 | 14 | 20 | 15 | 9 | 7 | 4 | 6 | 15 | 22 | 34 | 22 | 13 | 12 |
500 | 4 | 6 | 7 | 10 | 15 | 11 | 8 | 5 | 5 | 8 | 13 | 28 | 44 | 40 | 25 | 18 |
630 | 2 | 3 | 8 | 17 | 25 | 20 | 16 | 12 | 4 | 6 | 16 | 22 | 27 | 22 | 19 | 11 |
Material: Polyester fibre (PEF), frequency band (Hz)
L = 600 | L = 1000 | |||||||||||||||
D2 | 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k | 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k |
100 | 9 | 12 | 15 | 20 | 33 | 34 | 37 | 29 | 15 | 17 | 24 | 32 | 43 | 40 | 41 | 40 |
125 | 9 | 11 | 14 | 18 | 33 | 29 | 32 | 24 | 14 | 16 | 23 | 29 | 43 | 43 | 44 | 37 |
160 | 8 | 10 | 12 | 17 | 30 | 24 | 26 | 20 | 12 | 13 | 17 | 25 | 37 | 40 | 39 | 30 |
200 | 6 | 8 | 10 | 18 | 28 | 26 | 23 | 17 | 9 | 12 | 17 | 28 | 40 | 41 | 34 | 23 |
250 | 6 | 7 | 9 | 16 | 22 | 22 | 18 | 12 | 9 | 10 | 15 | 24 | 34 | 36 | 27 | 19 |
315 | 5 | 6 | 10 | 17 | 20 | 17 | 13 | 8 | 8 | 10 | 15 | 25 | 31 | 28 | 20 | 13 |
400 | 2 | 3 | 8 | 11 | 17 | 13 | 8 | 6 | 4 | 6 | 12 | 19 | 27 | 21 | 11 | 10 |
500 | 4 | 6 | 7 | 10 | 14 | 11 | 8 | 5 | 5 | 8 | 10 | 17 | 24 | 19 | 10 | 9 |
630 | 2 | 3 | 6 | 9 | 12 | 10 | 7 | 5 | 4 | 6 | 9 | 14 | 21 | 17 | 10 | 9 |
Electric Reheat Coils ▲
The Halton HFB electric reheat coil is available for duct sizes 100...400 mm, and it is always a single-phase heater (230 VAC, less than 16 A).
Two electric reheater options are available:
- RM = Electric reheater without internal heating controller, PWM control signal input (230 VAC, pulse width modulation)
- RC = Electric reheater with internal heating controller, 0...10-VAC control signal input
Both heaters (RM and RC) have two internal overheating protection devices connected in series, one automatic and one with manual reset. This increases heater safety.
The RC heater also includes a built-in alarm relay with potential-free changeover contact for remote alarm monitoring. The alarm is triggered by manual overheating protection or heater power loss.
Ensure that the airflow velocity is above 2 m/s to guarantee proper control function when selecting the airflow control damper and reheat coil.
Electric duct heater operation shall always be interlocked with the fan or with airflow rate measurement through the heater. The power supply to the duct heater must be switched off if the fan is switched off or airflow rate is too low. This function can be connected to the duct heater power supply (switch I for both heaters RM and RC), or in the case of the RC heater, also with potential-free contact P.
Dimensions
Size | D (mm) | L (mm) | L1 (mm) |
100 | 99 | 375 | 291 |
125 | 124 | 375 | 291 |
160 | 159 | 375 | 291 |
200 | 199 | 375 | 291 |
250 | 249 | 375 | 291 |
315 | 314 | 375 | 291 |
400 | 399 | 375 | 291 |
Heating capacity
NS | Power W | qv_min v m/s | qv l/s | qv m3/h | dT (max) K | qv_max example v m/s | qv l/s | qv m3/h | dT (max) K |
100 | 600 | 2.0 | 16 | 57 | 32 | 6.0 | 47 | 170 | 11 |
125 | 900 | 2.0 | 25 | 88 | 31 | 6.0 | 74 | 265 | 10 |
160 | 1500 | 2.0 | 40 | 145 | 31 | 6.0 | 121 | 434 | 10 |
200 | 2100 | 2.0 | 63 | 226 | 28 | 6.0 | 188 | 679 | 9 |
250 | 3000 | 2.0 | 98 | 353 | 25 | 6.0 | 295 | 1060 | 8 |
315 | 3000 | 2.1 | 156 | 561 | 16 | 6.0 | 468 | 1683 | 5 |
400 | 3000 | 2.0 | 251 | 905 | 10 | 6.0 | 754 | 2714 | 3 |
Electrical information
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
S All-pole switch for power supply
I Fan interlock switch
P Airflow or duct pressure interlock switch
H Heating power controller
L1 230 VAC live
N Neutral
0 Protective earthing
Heater power supply switch (S) | All-pole switch, 230 VAC, max. 16 A |
Fan interlock function (I) | 230 VAC, max. 16 A |
Airflow or duct pressure interlock (P) - Indication - Contact open - Contact closed | Potential-free contact 10 V, max. 500 mA Heating disabled Heating enabled |
Heating power controller H - Voltage - On/off cycle | PWM 230 VAC, max. 16 A, according to heater power 60 s recommended |
Control signal input 9, 10 - Voltage - Internal impedance | 0...10 VDC 100 ohms |
Alarm output 11, 12 (NC) and 13, 14 (NO) - Max. indication voltage - Max. current - NC - NO | Potential-free contact 230 VAC 500 mA Contact closed if manual overheating protection is triggered or in the event of power failure Contact open if manual overheating protection is triggered or in the event of power failure |
Overheating protection - Automatic reset - Manual reset | Triggered at 60 °C, reset at 48 °C Triggered at 120 °C |
Installation ▲
Safety distances
The Halton HFB airflow control damper is installed taking into account the required safety distances. Install the unit into ductwork in such a way that the air flow direction through the unit is as indicated with the arrow in the unit casing.
For the pressure control damper the minimum safety distance for the static measurement tab after the control damper is 5 x D. Please refer to job drawings.
Wiring
The wiring shall be carried out in accordance with local regulations and by professional technicians.
For the power supply of all control options, a safety-isolating transformer shall be used.
The wiring instructions are presented following applications:
1 A HFB; CU=EM / EK / EC / EE Typical variable airflow control application
1 B HFB; CU=EM / EK / EC / EE Overriding controls
1 C HFB; CU=EM / EK / EC / EE Example;
Variable airflow control with a room controller
1 D HFB; CU=EM / EK / EC / EE Example;
Variable airflow control with a building management system
1 E HFB; CU=EM / EK / EC / EE Example:
Parallel airflow control with a building management system
2 A HFB; CU=ED Typical variable airflow control application
2 B HFB; CU=ED Overriding controls
2 C HFB, CU=ED Constant airflow control
3 A HFB; CU=EG Typical variable airflow controll
3 B HFB; CU=EG Position & constant airflow control
4 A HFB; CU=EM / EK / EC / EE, RH=RM Cooling with airflow and heating with electric heater,
pulse width modulation (PWM)
4 B HFB; CU=EM / EK / EC / EE, RH=RC Cooling with airflow and heating with electric heater
Control units
CU Description Note
EM Halton LMV-D3-MF-F.1 HI (5 Nm)
EK Halton NMV-D3-MF-F.1 HI (10 Nm)
EC Halton LMV-D3-MP-F.1 HI (5 Nm, with Belimo MP-bus)
EE Halton NMV-D3-MP-F.1 HI (10 Nm, with Belimo MP-bus)
ED Belimo VRD3 + NM24A-V (10 Nm)
EG Siemens GLB181.1E/3 (10 Nm)
ES Belimo VRP-STP + VFP-100 + NM24A-V (10 Nm, 30...100 Pa)
ER Belimo VRP-STP + VFP-300 + NM24A-V (10 Nm, 90...300 Pa)
1A & 1B: HFB; CU = EM / EC (LMV-D3-MP/MF HI) or EK / EE (NMV-D3-MP/MF HI)
- typical application and overriding controls
1A. Typical variable airflow control application 1B. Overrides All options
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
ACD HFB
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w) 2...10- or 0...10-VDC airflow setpoint signal input
5 (U5) 2...10- or 0...10-VDC airflow feedback signal output
*) Diode 1N 4007
Operating mode
2...10 VAC | 0...10 VAC | A | B | C | D | E | |
NA | NA | On | Off | Off | Off | Off | |
qv_min | qv_min | Off | Off | Off | Off | Off | Constant flow |
Variable qv_min...qv_max | Variable qv_min...qv_max | Off | On | Off | Off | Off | |
CLOSED | CLOSED | Off | Off | On | Off | Off | |
qv_max | qv_max | Off | Off | Off | On | Off | Constant flow |
OPEN | OPEN | Off | Off | Off | Off | On |
Shut-off with control signal w:
In addition to relay override command situations, the damper will be fully closed if:
- 0...10 VDC: the HFB minimum airflow is set to 0% (0 l/s or 0 m3/h) and control signal w falls below 0.45 VDC
- 2...10 VDC : HFB control signal w falls below 0.5 VDC
- Both 0...10 VDC and 2...10 VDC: the airflow setpoint voltage falls below a value corresponding to an air velocity of less than 0.5 m/s
Mode | Voltage OF w, VDC | Function |
0...10 VDC | 0.0...0.45 | Minimum airflow (closed if qv_min = 0%) |
0.5...10.0 | Modulating, qv_min … qv_max | |
10.0 | Maximum airflow | |
2...10 VDC | 0.0...0.5 | Damper closed |
0.5...2.0 | Minimum airflow | |
2.0...10.0 | Modulating, qv_min...qv_max | |
10.0 | Maximum airflow |
1C & 1D, example:
HFB; CU = EM / EC (LMV-D2-MP/MF HI) or EK / EE (NMV-D2-MP/MF HI)
- variable airflow control with a room controller or a building management system
1C. Room controller application 1D. Building management system application
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
ACD HFB
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w) 0...10-VDC airflow setpoint signal input
5 (U5) 0...10-VDC airflow feedback signal output
RC Room controller
PLC Building management system
C (AO) Airflow setpoint control signal
F (AI) Actual airflow feedback input
1E, example:
HFB; CU = EM / EC (LMV-D2-MP/MF HI) or EK / EE (NMV-D2-MP/MF HI)
- parallel airflow control with a building management system
1D. Parallel airflow control with building management system
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
ACD1 HFB supply
ACD2 exhaust
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w) 0...10-VDC airflow setpoint signal input
5 (U5) 0...10-VDC airflow feedback signal output
PLC Building management system
C (AO) Airflow setpoint control signal
F (AI) Actual airflow feedback input
2A, 2B & 2C:
HFB; CU=ED (VRD3 + NM24A-V)
- typical, overriding controls and constant airflow control
2A. Typical application 2B. Overriding controls 2C. Constant airflow control
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
ACD HFB
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w) 2...10- or 0...10-VDC airflow setpoint signal input
5 (U5) 2...10- or 0...10-VDC airflow feedback signal output
6 y Actuator signal
7 z Override input
*) Diode 1N 4007
Override | A | B | C |
CLOSED | ON | Off | Off |
Variable flow | Off | Off | Off |
Min. flow | Off | ON | Off |
Max. flow | Off | Off | ON |
Constant flow | D | E | |
CLOSED | Off | ON | |
Min. flow | Off | Off | |
Max. flow | ON | Off |
3A & 3B: HFB; CU=EG (GLB181.1E/3)
- typical variable airflow control and position & constant airflow control
3A. Typical airflow control application 3B. Position & constant airflow control
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
ACD HFB
2 (G0) 24 VAC system neutral
1 (G) 24 VAC live
8(YC) 2...10- or 0...10-VDC airflow setpoint signal input
9 (U) 2...10- or 0...10-VDC airflow feedback signal output
6 (Y1) Override input
7 (Y2) Override input
Constant flow | A | B |
CLOSED | Off | ON |
Min. flow | Off | Off |
Max. flow | ON | ON |
OPEN | ON | Off |
4A: HFB; CU=EM, EK, EC or EE, RH=RM
- cooling with airflow and heating with electric heater
4A. Cooling with airflow and heating with electric heater
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
RH RM electric reheater
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w) 2...10- or 0...10-VDC airflow setpoint signal input
5 (U5) 2...10- or 0...10-VDC airflow feedback signal output
RC Room controller
C Airflow setpoint control signal for cooling
F Actual airflow feedback input
S All-pole switch for power supply
I Fan interlock switch
H Heating power output, 230 VAC PWM,
60-second cycle time recommended
L1 230 VAC live
N Neutral
0 Protective earthing
4B: HFB; CU=EM, EK, EC or EE, RH=RC
- cooling with airflow and heating with electric heater
4B. Cooling with airflow and heating with electric heater
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
RH RC electric reheater
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w) 2...10- or 0...10-VDC airflow setpoint signal input
5 (U5) 2...10- or 0...10-VDC airflow feedback signal output
RC Room controller
C Airflow setpoint control signal for cooling
F Actual airflow feedback input
S All-pole switch for power supply
I Fan interlock switch
H Heating power output, 0...10 VDC
P Airflow or duct pressure interlock switch
L1 230 VAC live
N Neutral
0 Protective earthing
9 24 VAC system neutral
10 Heating power input, 0...10 VAC
11,12 Alarm output (NC), potential-free, contact closed in alarm
13,14 Alarm output (NO), potential-free, contact open in alarm
21,22 Airflow or duct pressure interlock indication
5A & 5B: HFB; CU=ES or CU=ER
- Typical duct pressure control and overriding controls
5A. Typical duct pressure control 5C. Overriding controls
Code description
Halton Delivered by Halton
3rd party Delivered by a third party
ACD HFB
1 (G0) 24 VAC system neutral
2 (~) 24 VAC live
3 (w1) 0...10 VDC pressure setpoint signal input
5 (U5) 2...10 VDC pressure feedback signal output
6 y Actuator signal
7 z Override input
*) Diode 1N 4007
**) Jumper 2-4 factory-fitted for potentiometer setpoint; remove if 0...10-VDC input w1 is used
**) Minimum safety distance for pressure tab after pressure control damper: 5 x D
Override | A | B |
CLOSED | Off | On |
Pressure control | Off | Off |
OPEN | On | Off |
The pressure controller has a setpoint potentiometer for pressure setpoint adjustment.
Commissioning ▲
Airflow control
Nominal airflow rates of the Halton HFB are presented in the table below:
NS | qv_nominal l/s | qv_nominal m3/h | NS | qv_nominal l/s | qv_nominal m3/h | |
100 | 70 | 251 | 250 | 538 | 1936 | |
125 | 115 | 414 | 315 | 885 | 3188 | |
160 | 211 | 758 | 400 | 1555 | 5600 | |
200 | 340 | 1226 | 500 | 2449 | 8818 |
The actual measured airflow rate (qv) can be defined by the controller feedback signal (U or U5) and airflow controller nominal airflow (qv_nom).
Signal | Formula | Controller type and mode | Terminals system neutral | Terminals signal |
0...10 VDC | qv=qv_nom*U/10 | HFB;CU=EM, EK, EC or EE (LMV-D2-MP/MF HI or NMV-D2-MP/MF HI), mode 0...10 V HFB;CU=EG (GLB181.1E/3) | 1 (GND) 2(G0) | 5 (U5) 9(U) |
2...10 VDC | qv=qv_nom*(U-2)/8 | HFB;CU=EM, EK, EC or EE (LMV-D2-MP/MF HI or NMV-D2-MP/MF HI), mode 2...10 V HFB;CU=ED (VRD2+NM24A-V) | 1 (GND) 1 (^) | 5 (U5) 5 (U5) |
The actual airflow rate can also be determined from the pictures below:
The actual airflow rate can be calculated as a function of differential pressure at the measurement probe and the measurement probe k factor. The proper k factor can be found in an attachment for the product.
qv Actual airflow rate [l/s]
k k value of the product
Δpm Differential pressure of measurement probe [Pa]
The Halton HFB airflow controller is equipped with a pressure sensor, and there is a very low airflow through the differential pressure sensor of the controller. Therefore, a manual differential measurement manometer can be connected in parallel to the airflow controller (for example with tube T-branches) and both measurements can operate in parallel with continuous control.
If Halton HFB is ordered without factory pre-set minimum and maximum flow values (FS=NA), minimum flow value will be set to 0 and maximum flow value is equal to nominal flow value.
Duct pressure control
The actual measured airflow rate can be defined by the controller feedback signal and airflow controller nominal airflow.
Signal | Formula | Controller type and mode | Terminals system neutral | Terminals signal |
2...10 VDC | Pst=100 Pa * (U-2)/8 Pst=300 Pa * (U-2)/8 | HFB;CU=ES (VRP-STP+VFP-100) HFB;CU=ER (VRP-STP+VFP-300) | 1 (GND) 1 (GND) | 5 (U5) 5(U5) |
The actual duct static pressure can also be read from the picture:
Specification ▲
The pressure-independent variable airflow control damper is made of galvanised steel, with an airflow measurement probe of aluminium.
The tightness of the control damper in closed position conforms to standard EN1751 class 4 and casing tightness to EN 1751/C.
Duct connection includes integral airtight rubber gaskets.
The management damper section contains airflow measurement, flow controller and damper actuator.
Design airflow range limits are calibrated at the factory.
Controller settings canbe adjustable on site with a PC or a handheld tool.
The airflow controller has control signal input 0...10 VDC or 2 ...10 VDC and output 0...10 VDC for airflow feedback.
Supply power is 24 VAC.
The damper is equipped with a sound attenuator in order to meet the sound level requirement for the room. As an optional extra, the sound attenuator has an access panel for cleaning purposes.
The airflow controller comprises an electric reheat coil with power supply of 230 VAC. Incorporated within the reheat coil has a safety overheat thermostat with both automatic and manual reset. A 3rd party room controller is needed to control the duct heater with 0...10 VDC control signal.
Order code ▲
HFB/S-D
S = Model
G Damper with blade gasket
H Damper without blade gasket
I Blade gasket, insulation 50 mm
J No blade gasket, insulation 50 mm
D = Connection size
100, 125, 160, 200, 250, 315, 400, 500
Other optios and accessories
MA = Material
CS Steel
CU = Control unit
EM LMV-D3-MF HI
EK NMV-D3-MF HI
EC LMV-D3-MP HI (includes Belimo MP-bus)
EE NMV-D3-MP HI (includes Belimo MP-bus)
ED VRD3+NM24A-V (Belimo)
EG GLB181.1E/3 (Siemens)
FS = Min-max flow values presetting in factory
NA Not assigned
Y Yes
SA = Sound attenuator, connection sizes
NA Not assigned
H1 L = 600 mm; Outlet = inlet; Mineral wool
H2 L = 1000 mm; Outlet = inlet; Mineral wool
H3 L = 600 mm; Outlet = inlet; Polyester fibre
H4 L = 1000 mm; Outlet = inlet; Polyester fibre
H5 L = 600 mm; Outlet > Inlet; Mineral wool
H6 L = 1000 mm; Outlet > inlet; Mineral wool
H7 L = 600 mm; Outlet > inlet; Polyester fibre
H8 L = 1000 mm; Outlet > inlet; Polyester fibre
H11 L = 600 mm; Outlet = inlet; Mineral wool; Access panel
H12 L = 1000 mm; Outlet = inlet; Mineral wool; Access panel
H13 L = 600 mm; Outlet = inlet; Polyester fibre; Access panel
H14 L = 1000 mm; Outlet = inlet; Polyester fibre; Access panel
H15 L = 600 mm; Outlet > Inlet; Mineral wool; Access panel
H16 L = 1000 mm; Outlet > inlet; Mineral wool; Access panel
H17 L = 600 mm; Outlet > inlet; Polyester fibre; Access panel
H18 L = 1000 mm; Outlet > inlet; Polyester fibre; Access panel
RH = Electric reheat coil
NA Not assigned
RM Electric reheater with PWM control signal input (230 VAC, pulse width modulation)
RC Electric reheater with 0...10-VAC control signal input
ZT = Tailored product
N No
Y Yes
Code example
HFB/G-100, MA=CS, CU=EE, FS=NA, SA=NA, RH=NA
Internal Information
Updates
22.10.2018 Product Models / text removed - includes wrong information (Tapani Salo)
Controllers EM, EK, EC, EE and ED include a dynamic differential pressure sensor
with a low bypass airflow rate through the sensor element. Therefore, these controllers
are not to be used in highly contaminated environments. The pressure sensor of the EG
unit is based on a membrane with no flow through the sensor element.
Controllers EC and EE include Belimo's MP-bus connection.
Downloads & Media
Halton HFB - fr | Type Datasheet | Language French (France) | Size 1.6 MB |