Halton HFS – Reguleringsspjæld til statisk tryk

Overview

Terminated as of 1st December 2021
-> replaced with Halton Max One Circular (MOC)

• Til kanaltrykstyring
• Reguleringsspjældet til statisk tryk Halton HFS er designet til at blive brugt sammen med den statiske trykmålingsenhed Halton MSS for at opretholde det ønskede konstante tryk i kanalen.
• Automatisk slukkefunktion kan vælges, tæthed opfylder EN 1751, klasse 4 krav
• Klassificering af kabinettets tæthed: EN 1751, klasse C
• Cirkulær kanaltilslutning udstyret med integrerede gummipakninger
• Galvaniseret ståldesign

Modeller og tilbehør

• Model med forlænget aktuatorplatform til isoleringsarbejde på stedet.
• Model med fabriksmonteret isolering med eksternt metaldæksel
• Integreret luftstrømsmålingsenhed (manuel eller med 0…10 V outputsignal) som tilbehør
• Et udvalg af lyddæmpermodeller

Dimensioner og væg

Halton HFS/G, MU=NA

HFS/E, MU=NA, model med forlænget aktuatorrække

HFS/G, MU=A, model med manuel luftstrømsmåling

HFS/G, MU=B, model med luftstrømsmålingsenhed (0…10 V)

HFS/I, MU=A, isolering og manuel måling af luftstrøm

HFS/I, MU= B, med isolering og luftstrømsmålingsenhed (0…10 V)

Vægt

 Halton HFS/G, MU=NA

Materialer

Kanaltilslutningspakninger er vulkaniseret til beklædningen.

Funktion

Den statiske trykdæmper HFS opretholder det ønskede konstante kanaltryk, baseret på et statisk trykmålingssignal fra MSS-enheden (0…10 V).

Halton HFS funktioner

• Til forsynings- og udstødningsinstallationer
• Komplet nedlukningsfunktion
• Statisk tryk sat mellem 0…300 Pa (se MSS specifikationer).
• Maksimal trykforskel over dæmperen på 500 Pa
• Driftsområde: omgivelsestemperatur fra 0 til 50°C
• Relativ luftfugtighed < 95%, ikke-kondenserende

En optimal og stabil drift sikres ved hjælp af den statiske trykmålingsenhed Halton MSS. De angivne sikkerhedsafstande skal anvendes. Brug ikke andre trykmålingsenheder for at sikre korrekt kontrolnøjagtighed.

Halton MSS-enheden har flere trykmåleområder, 0…100 Pa, 0…200 Pa (standard), 0…500 Pa og 0…1000 Pa.

Luftstrømsmåling kan foretages manuelt ved hjælp af model HFS-A og manometer.
Med model Halton HFS-B er den faktiske luftstrømshastighed tilgængelig som 0…10 VDC eller 2…10 VDC-signal.

Halton HFS reguleringsspjældet indeholder en trykregulator (PC), der styrer spjældmotoren (FG) baseret på feedbacksignalet fra Halton MSS tryksenderen (PE), således at den indstillede værdi bliver realiseret.

Product Models

Halton HFS reguleringsspjæld til statisk tryk fås i flere forskellige versioner.
Klingepakningen giver lufttæt slukkefunktioner, og udvendig isolering bruges til at dæmpe udstrålet lyd ud i rummet og reducere varmeoverførslen. Isoleringsmodellen er dækket med et metalkabinet

Halton HFS reguleringsspjældet indeholder en trykregulator (PC), der styrer spjældmotoren (FG) baseret på feedbacksignalet fra Halton MSS tryksenderen (PE), således at den indstillede værdi bliver realiseret.

Trykreguleringsspjæld med manuel luftstrømsmåling

Trykreguleringsspjæld med luftstrømsmålingsenhed 

Kontrolenhedt (CU)

Alle Halton HFS-modeller er udstyret med trykregulator Belimo VRP-STP og aktuator NM24A-V (CU=EP). Når modellen Halton HFS/S-D-B vælges, har Halton HFS en integreret luftstrømsmålingsenhed (MSD) og en analog signaltransmitter for målt luftstrøm.

Det indstillede punkt kan justeres lokalt med potentiometer eller via fjernstyring med 2-10 Vdc signal.

Se Halton MSS og Halton MSD teknisk data fra HIT-sektionen for de relevante data.

Sound Attenuators

SOUND ATTENUATORS (SA)

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 lengths. 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 HFS pressure 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).

Attenuator dimensions

The picture above describes supply air installation. In exhaust installation the airflow direction is vice versa, from D2 to D1.

Attenuation data

Material, Mineral wool (MW), frequency band (Hz)

Material, Polyester fibre (PEF), frequency band (Hz)

Installation

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.

The pressure control damper is installed taking into account the recommended safety distances for accurate and stable control.

Minimum safety distances of all HFS models

Bend       T-branch; supply

T-branch; exhaust       Sound attenuator
Static pressure measurement unit MSS should be installed in a ductwork in a place where static pressure is most suitable. Usually the place is in supply and exhaust duct 3/4 of ductwork length. Also safety distance before MSS unit must be observed.

Minimum safety distance between HFS and MSS

Supply air

Exhaust air

AIR FLOW MEASUREMENT WITH MSD

The pressure control damper with air flow measurement unit 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.

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.

Degree of protection

• Actuator NM24A-V: IP54
• Pressure controller VRP-STP: IP40
• Flow controller VRD3: IP40

The wiring instructions are presented for following applications:

1 A  HFS; CU=EP  Constant zone pressure control, set point adjusted locally
1 B  HFS; CU=EP  Constant zone pressure control, set point adjusted remotely
1 C  HFS; CU=EP  Overriding controls

2 A.   HFS-B; CU=EP  Constant zone pressure control with air flow measurement unit

Control unit
CU  Description     Note
EP   Belimo VRD2 + NM24A-V    10 Nm

1. HFS; CU=EP – duct pressure control

1.A. Typical duct pressure control local pressure set point.

1.B. Set point adjusted externally

1. HFS; CU=EP – duct pressure control with override controls

1.C. Duct pressure control with over-riding controls

CODE  DESCRIPTION
Halton  Delivered by Halton
3rd party Delivered by a third party

1 (^)  24 VAC system neutral
2 (~)  24 VAC live
3 (w1)  2…10 VDC pressure set point signal input when set point adjusted remotely
5 (U5)  2…10 VDC pressure feedback signal output
6 y  Override input
7 z  Override input
*)  Jumper 2-4 factory-fitted for potentiometer set point; remove if 2…10-VDC input w1 is used
**)  Diode 1N 4007

2. HFS-B; CU=EP – duct pressure control with air flow measurement unit

2.A. Duct pressure control with air flow measurement

CODE  DESCRIPTION
Halton  Delivered by Halton
3rd party  Delivered by a third party

VRP-STP pressure controller
1 (^)  24 VAC system neutral
2 (~)  24 VAC live
3 (w1)  2…10 VDC pressure set point signal input when set point adjusted remotely
5 (U5)  2…10 VDC pressure feedback signal output
6 y  Override input
7 z  Override input
*)  Jumper 2-4 factory-fitted for potentiometer set point; remove if 2…10-VDC input w1 is used
**)  Diode 1N 4007

VRD3 air flow measurement
1 (^)  24 VAC system neutral
2 (~)  24 VAC live
5 (U5)  2…10 VDC pressure feedback signal output (actual airflow rate)

The output signal 5 (U5) can be used to control an eventual exhaust airflow control damper.

Pressure transmitter connection between HFS and MSS

Connector cable between HFS and MSS

Length of the cable for pressure measurement unit MSS provided with HFS is 0.7 m. Needed extension connection cable is supplied by 3rd party.

Code  Wire
1   24 VAC system voltage
2   Neutral
3   0…10 VDC pressure measurement signal

Commissioning

Setting duct pressure

The pressure controller has a set point potentiometer for pressure set point adjustment.

Local setting

The pressure controller VRP-STP includes a potentiometer for static pressure set point adjustment (range: 30…100% of the selected MSS unit pressure range).

An example:

• Needed constant pressure set point is 120 Pa
• Choose pressure range of 0…200 Pa in MSS
• Adjust the set point potentiometer Dp% to 60% (=120 Pa / 200 Pa)

Remote setting
Set point can be set externally from building management system, air pressure range 0-100% corresponding to control signal range of 2-10 Vdc. Local set point potentiometer shall be set to 100%.

Defining measured duct pressure level

The actual measured static pressure level can be defined by the controller feedback signal (U5).

The actual duct static pressure can also be read from the picture:

Static pressure and output signal

A = Pressure transmitter range 0…100 Pa
B = Pressure transmitter range 0…200 Pa

Static pressure and output signal

A = Pressure transmitter range 0…500 Pa
B = Pressure transmitter range 0…1000 Pa

Defining the measured airflow

With model HFS/ A air flow can be defined manually using integrated air flow measurement unit MSD.

Connect the measurement tubes to the manometer and read the pressure difference. The airflow rate is calculated using the formula below or by reading the airflow rate directly from the diagram.

K- factor

With model HFS/B air flow can be defined using integrated air flow measurement unit (MSD + VRD3). The actual measured airflow rate (qv) can be defined by the controller feedback signal (U5) and the nominal airflow (qv_nom) of the airflow measurement unit (VRD3).

Nominal airflow rates of the HFS are presented in the table below.

Specification

The static pressure control damper shall be made of galvanised steel. An additional airflow measurement probe is made of aluminium.

The tightness of the control damper in closed position shall conform to standard EN1751 class 4 and casing tightness to EN1751 class C.
Duct connection shall include integral airtight rubber gaskets.

The control damper section shall contain pressure controller and damper actuator and optionally airflow measurement. The damper shall be used in combination with MSS pressure measurement unit.

The damper shall be equipped with a sound attenuator in order to meet the sound level requirement for the room. As an optional extra, the sound attenuator shall have an access panel for cleaning purposes.

Product Code

HFS/S-D-MU

S = Construction
G  Standard unit with blade gasket
E  Standard unit with blade gasket and extended motor bed (for on-site insulation work)
I  Unit with blade gasket and 50 mm insulation (only for models MU=A or MU=B)

D = Duct connection size
200, 250, 315, 400, 500

MU= Measurement unit
NA  Not assigned
A  Air flow measurement unit MSD (manual)
B  Air flow measurement unit MSD+VRD3, electrical (0…10V)

Specifics and accessories

CU= Control unit
EP  VRP-STP+NM24A-V

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 fiber
H4  L = 1000 mm; Outlet = inlet; Polyester fiber
H5  L = 600 mm; Outlet > Inlet; Mineral wool
H6  L = 1000 mm; Outlet > inlet; Mineral wool
H7  L = 600 mm; Outlet > inlet; Polyester fiber
H8  L = 1000 mm; Outlet > inlet; Polyester fiber
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 fiber; Access panel
H14  L = 1000 mm; Outlet = inlet; Polyester fiber; 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 fiber; Access panel
H18  L = 1000 mm; Outlet > inlet; Polyester fiber; Access panel

Code example

HFS/G-200-B, CU=EP, SA=NA