R6O - Halton Rex for Vario

Halton Rex for Vario

适用于Halton Vario 系统的变风量冷梁。适用于要求苛刻的办公室环境。


  • 可采用嵌入吊顶的安装方式实现制冷、供热和通风的功能
  •  特别适用于定压管道的按需通风和变风量解决方案
  • 对于希望实现高品质环境条件、按需通风和单独房间控制的按需应用环境而言,是理想的解决方案


Halton Rex for Vario 冷梁可高度灵活地调节风量,专门为满足典型的办公空间通风要求而设计。Rex for Vario 可轻松调节工作状态以适应变化的操作环境和要求。

  • 可独立调节送风量以适应工作模式控制阀 (OMD) 的变化。
  • Halton速度控制 (HVC) 可实现独立速度调节
  • 借助Halton速度控制HVC可轻松实现隔墙的重新灵活定位
  • 在定压管道中,送风量根据需求进行调节可以高效利用能源;当送风量改变时,冷梁的制冷/制热效率不受影响。
  • 通过优化水量和风量来提升生命周期性能


  • 配有组合式冷却和加热盘管的型号
  • 配有工作模式的电动控制阀 (OMD) 的型号
  • 配有房间控制器的型号


当静压箱的压力保持在恒定值时,能够在会议室将一次风量从最小值调节到最大值 (0-100%)。
主动式冷梁的宽度和高度分别为 595 mm 和 230 mm。
主动式冷梁的风管入口直径为 160 mm。
所有可见部分都采用RAL 9010 白色喷漆,光泽度为 20%。
所有管件都由铜制成,连接水管的管壁厚度为 0.9-1.0 mm。
根据情况,使用两个 10 mm 的水管以串联方式组成热交换器内的加热系统。
管道系统可经受的最大工作压力为 1.0 MPa。

Halton Rex for Vario

Variable Air Volume Chilled Beam

Halton Rex for Vario chilled beam is:

  • Combined cooling, heating, and supply air unit for flush installation within a suspended ceiling
  • Well suited for demand based ventilation with constant staticpressure ductwork
  • Ideal solution for applications where high-quality indoor conditions, energy efficient operation and individual room control are appreciated

Typical applications: office rooms, landscape offices and meeting rooms.

Halton Rex for Vario chilled beam is designed for high quality office requirements with high flexibility of the airflow adjustability. The Halton Rex for Vario operation will adapt to changes in the use of the space and office layout changes.

  • Adjustable supply air flow rate changes with Operation Mode Damper (OMD).
  • Individually adjustable velocity conditions with Halton Velocity Control (HVC).
  • In-built flexibility for partition wall relocations with Halton Velocity Control.
  • Demand based ventilation for efficient use of energy in constant-pressure ductwork zone applications.
  • Enhanced life cycle performance with optimised air and water flow rates

Product models & accessories

  • Model with combined cooling and heating coil
  • Model with room controllers



 Ø D  160
 Coil length (mm)  1000, +100, ..., 3400
 L-5  (mm)  1195, +100, ..., 3595 (+1715)
 kg/m  15


Integration with suspended ceiling



 Part  Material  Finishing  Note
 Front panel  Pre-painted
 galvanised steel
 (RAL 9010/20% gloss)
Special colours available
 Side plates  Pre-painted
 galvanised steel
 (RAL 9010/20% gloss)
Special colours available
 End plates  Galvanised steel  Polyester-painted,
 (RAL 9010/20% gloss)
Special colours available
 Supply air plenum  Galvanised steel    
 Brackets  Galvanised steel    
 Coil pipes  Copper    
 Coil fins  Aluminium    


 Accessory/mode  Code  Description  Note
 Combined cooling and
 heating coil
TC = H  Coil with hot water
 Cooling/heating copper
 water pipe connections
 are Ø 15/10 mm
 See order Code
 Room controller RC =  Room controller for
 LonWorks, BACnet or Modbus
 See order Code
  Sensors SE =  Sensors for
 LonWorks, BACnet or Modbus
 See order Code
 Control panel AQ =  Control panel for
 LonWorks, BACnet or Modbus
 See order Code
 Water valves and actuators CV =  Danfoss AB-QM dn10 (Heating)  See order Code

Cooling/heating water pipe connections are Cu15/Cu10 with wall thickness of 0.9-1.0 mm fulfilling European Standard EN 1057:1996.
The maximum chilled/hot water circuit operating pressure is 1.0 MPa.
The supply air duct connection is 125 mm. 


The Halton Rex for Vario chilled beam is designed to be installed flush with a suspended ceiling.

The primary supply air enters the plenum of the active chilled beam. From there the air is diffused into the room through nozzles controlled by Operation Mode Damper (OMD).
The supply air nozzle jets efficiently induce ambient room air, which is directed horizontally along the ceiling surface. Secondary air is drawn through the perforation located at the bottom of the beam. The air then cycled through the heat exhanger, where it is either cooled or heated before being diffused into the room.

Velocity control in the occupied zone

Halton Velocity Control (HVC) is used for adjusting room air velocity conditions either when room layout is changed (e.g., in cases where the partition wall is located near the chilled beam) or when local, individual velocity conditions need to be altered. HVC adjustment has an impact on the induced room air flow through the heat exchanger, and therefore it either increases or decreases both the velocities in the occupied zone and the cooling/heating capacity of the chilled beam.

Pos. 1 = Throttle position      Pos. 2 = Normal position      Pos. 3 = Boost position

The HVC damper is divided into sections (Pos.1-3) to enable the adjustment of conditions in different parts of the occupied zone.

It is recommended to design the chilled beam in the normal position in order to allow both throttle and boost functions during the building s life cycle.

Operation mode control

The supply air flow of the chilled beam nozzle jets are dependent on effective heat exchanger length and static chamber pressure.

Halton Operation Mode Damper (OMD) is used for adjusting and controlling the outdoor air flow rate in a room space. The airflow rate is dependent on the opening position of the control damper. Operation mode of the room space is monitored with occupancy sensor. In unoccupied mode (1.) the supply air flow rate is set to minimum value that is able to remove material emission. In occupied mode (2.) supply airflow rate is set to normal office mode. When more persons are coming to the space, based on CO2-sensor air flow is increased to boost mode (3.) to maintain the set target value of indoor air quality.

1. Unoccupied mode             2. Occupied mode                3. Boost mode

Temperature controls

The cooling and heating capacities of the chilled beam are controlled by regulating the water flow rate according to the control signal of the room temperature controller.

In heating mode, it is recommended that the temperature difference between the jet outlet and room air would not be greater than 3 °C. The inlet water temperature of the heat exchanger should not be higher than 35 °C. Optimal heating performance requires an appropriate primary air flow rate. Thus, the air handling unit shall operate during heating periods to ensure proper heating performance.


The Halton Rex Vario controller is a room controller dedicated to complete room applications providing the control of cooling, heating, demand controlled ventilation.

  • Halton Rex Vario integrated room controller
  • Room air temperature measurement to control space temperature
  • Occupancy sensor for demand based operation with
    Operation Mode Damper (OMD)
  • Air quality control with carbon dioxide sensor, CO2
  • Cooling with chilled water control valve
  • Heating with hot water control valve as an option
  • Several user interface options, either wall mounted or hand-held
    remote controller
  • Condense prevention

The Halton Rex Vario room controller manages the chilled beam operation by controlling chilled water and hot water control valves in 2- or 4-pipe applications.

The Halton Rex Vario room controller provides a wide variety of connections for sensors and actuators and the possibility to connect a wall mounted panel with or without a display for local set points adjustment e.g. temperature, and a wireless remote control.

See documents from the Documents-section for more information.


The Halton Rex for Vario active chilled beam is especially suitable for ceiling mounting running parallel to exterior wall of the room. When selecting of the chilled beam orientation, the location of the supply air and water circuit connections are taken into account.

The chilled beam can be attached directly to the ceiling surface (H1 = 230 mm) or suspended using threaded drop rods (8 mm). Depending on the length of the unit the fixing points are located as show at the drawings.

Install the main pipelines of the cooling and heating water circuits above the level of the chilled beam in order to enable venting of the pipework.

Bracketing, total length from 1200 or 1500 mm

Bracketing, total length from 1600 or 2200 mm

Bracketing, total length from 2300 -  3600 mm



The recommended cooling water mass flow rate is 0.02-0.10 kg/s, resulting in a temperature rise of 1-4 °C in the heat exchanger. To avoid condensation, the recommended inlet water temperature of the heat exchanger is 14-16 °C.


The recommended heating water mass flow rate is 0.01-0.04 kg/s, resulting in a temperature drop of 5-15 °C in the heat exchanger.
The maximum temperature of the inlet water for the heat exchanger is 35 °C.

Balancing and control of water flow rates

Balance the water flow rates of the Halton Rex for Vario chilled beam with adjustment valves installed on the outlet side of the cooling and heating water loops. The cooling capacity and heating capacity of the chilled beam are controlled by regulating the water mass flow rate. The water mass flow rate can be controlled by using an ON/OFF valve or a two- or three-way proportional valve.

Adjustment of supply air flow rate

Connect a manometer in the measurement tap and measure the static pressure in the Halton Rex for Vario chilled beam. The air flow rate is calculated according to the formula below.

Total airflow rate (qv)

qv        Total airflow rate, l/s or m3/h
qv1       Normal mode nozzle jet airflow rate, l/s tai m3/h
qv2       Boost mode nozzle jet airflow rate, l/s tai m3/h

Nozzle jet airflow rate  (qv1 ja qv2)

qv1,2 = k *leff *√∆Pm  

l eff           Length of the coil [m]
Δpm       Measured static chamber pressure [Pa]

  k (l/s) k (m3/h)
 A  0,70 2,52
B 1,06 3,82
C 1,35 4,86
D 2,03 7,31
E 3,31 11,92

Same k factors will be used to all the operation modes.
Please note the leff may differ between the normal and boost modes.


Code description:
1.   Front panel
2.   Side plate
3.   Operation mode damper (OMD)
4.   Supply air connection
5.   Heat echanger

Open the front panel of the supply air plenum, the ductwork, and the heat exchanger. In beams longer than 2400 mm, the front panel can be opened in two sections.

Clean the supply air plenum and finned coils of the heat exchanger with a vacuum cleaner, taking care not to damage the finned coils.

Clean the front panel and, if required, the side plates, using a damp cloth.


The active chilled beam has an integral recirculation air path through the perforated front panel. The induced room airflow rate is manually adjustable via three setting positions without influencing the primary air supply flow rate. The airflow rate of the chilled beam is adjustable without plugging or changing the nozzles.

The primary airflow rate idadjustable in meeting rooms from minimum to maximum (0-100%)
when static chamber pressure is kept constant.
The chilled beam unit is equipped with a motorised Operation Mode Damper (OMD).
The beam with adjustable airflow rate has only one duct connection.
The front panel is openable from either side in order to allow general maintenance and cleaning.
The front panel is removable without any special tools.
The air supply to the room space is bi-directional.

The active chilled beam is 595 mm wide and 230 mm high.
The active chilled beam has an inlet duct diameter of 160 mm.
The frame, front, and side panels are made of galvanised steel plate.
All visible parts are white, painted to RAL 9010, 20% gloss.

All pipes are manufactured from copper, and connection pipes with a wall thickness of 0.9-1.0 mm.
The fins are manufactured from aluminium.
All joints are soldered and factory pressure-tested.
The pipework s maximum operation pressure is 1.0 MPa.

The active chilled beam has measurement taps to allow air flow measurements to all the operation modes.
Active chilled beams are protected by a removable plastic coating.
The duct connection and pipe ends remain sealed during transport.
The active chilled beams can be identified by labels attached to both the active chilled beam and the plastic packaging.

Order Code


S = Nozzle type (1st row)
      A     Bi-directional/ Nozzle 1
      B     Bi-directional/ Nozzle 2
      C     Bi-directional/ Nozzle 3
      D     Bi-directional/ Nozzle 4
      E     Bi-directional/ Nozzle 5

L = Total length
      1200,+100,..,3600 (and 1720)

P = Nozzle type (2nd row)
      A     Bi-directional/ Nozzle 1
      B     Bi-directional/ Nozzle 2
      C     Bi-directional/ Nozzle 3
      D     Bi-directional/ Nozzle 4
      E     Bi-directional/ Nozzle 5

D = Nozzle length (2nd row)

Other options and accessories

LD = Duct connection / Duct size / Damper
        R3N      Right / 160 / Without damper
        L3N      Left / 160 / Without damper

TC = Cooling / Heating functions (coil type)
        C          Cooling
        H          Cooling and Heating

RC = Room controller
         NA        Not assigned
         LA1       LonWorks: HVL-527 for single unit
         LA2       LonWorks: HVL-527 for up-to 6 units
         LA3       LonWorks: Without room controller
         BA1       BACnet: HVB-527 for a single unit
         BA2       BACnet: HVB-527 for up-to 6 units
         BA3       BACnet: Without room controller
         MA1      Modbus: HVM-283T for a single unit
         MA2      Modbus: HVM-283T for up-to 6 units
         MA3      Modbus: Without room controller

All room controller models, except LA3, BA3 and MA3,
include unit integrated with:
- temperature sensor
- dew point detector

SE = Sensors
         NA         Not assigned
         SA         Occupancy sensors
                      (with BA- and LA-serie room controllers)
         SA2       Occupancy and CO2 sensors
                      (with BA- and LA-serie room controllers)
         SA3       CO2 sensor
                      (with BA- and LA-serie room controllers)
         SB1       Occupancy sensors
                      (with MA-serie room controllers)
         SB2        Occupancy and CO2 sensors
                       (with MA-serie room controllers)
         SB3        CO2 sensor
                       (with MA-serie room controllers)

ED = Exhaust air diffuser control
         N            No
         Y            Yes

CP = Control panel
        NA         Not assigned
        PA2        With setpoint shift and display
                      (BACnet and LonWorks only)
        PA3       Remote control unit
                     (BACnet and LonWorks only)
        PB1       With setpoint shift
                     (Modbus only)
        PB2       With setpointshift and display
                     (Modbus only)

CV = Water valves and actuators
        NA        Not assigned
        A3        Max flow limit, Danfoss AB-QM dn 10 (heating)
                    and dn15 (cooling) actuator 0-10V, factory assembled

CO = Colour
         W        White, as standard (RAL 9010)
         X          Special colour

ZT = Tailored product
        N          No
        Y          Yes

Code example

         R6O-B-3000-C-2600; LD=R3N, TC=C, RC=LA1, SE=SA1,
         ED=Y, CP=PA1, CV=A3, CO=W, ZT=N

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