LINDINVENT ISQ-160 Active Supply Air Diffuser Installation Guide

LINDINVENT ISQ-160 Active Supply Air Diffuser

Specifications

• Product Name: ISQ-160 & ISQ-200
• Type: Active Supply Air Diffuser
• Series: INSQAIR
• Technical Solutions: International Patents

Product Information

ISQ is part of INSQAIR, a series of products designed for simplicity and performance. It delivers comfort and efficient operation through unique technical solutions. The system is developed for easy planning, installation, and commissioning with simple user interfaces for accessibility.

• Lowest Life Cycle Cost (LCC)
  Lindinvent systems focus on compliant and efficient climate control based on under-tempered supply air and on-demand control, resulting in low investment and life cycle costs.

• Increased Productivity and Efficiency
  Cooling primarily via the supply air increases air volumes, leading to up to 8% staff efficiency improvement. This is based on a study published in November 2015.

• Maximum Digitization
  The design is sustainable with a focus on good environmental choices. Products are optimized for efficient shipping and minimal packaging.

• Environmental Product Declaration – EPD
  All supply air diffusers in the INSQAIR series have EPDs available for download. EPDs contribute to improved environmental declaration of buildings by providing information on environmental impact.

• Extreme Flexibility
  Lindinvent’s supply air diffusers offer flexibility in achieving an attractive indoor climate without water-borne cooling, simplifying remodeling projects with integrated sensors reducing cabling needs.

Product Usage Instructions

System Requirements
To optimize energy use, ensure that the total air flow adapts to actual needs based on occupancy rates and activity levels. Maintain right pressure and temperature in ducts for efficient energy use.

Construction Parts
Home Office – Sick Leave – Holidays – External Assignments

FAQ

• Q: Where can I find the Environmental Product Declaration (EPD) for the product?
  A: You can download the EPD from www.epdhub.com, which provides third-party verified EPDs based on the ISO 14025 method.

Active supply air diffuser

Quick facts

• A supply air diffuser with room climate controller designed for reduced energy usage at climatisation of offices, care facilities and, schools
• Installation efficient
  • Built-in room climate controller
  • Built-in motor-controlled airflow valve
  • Built-in and configured sensors
• Exceptional sound and flow performance
• Draft-free even with cold supply air
• Adjustable air distribution pattern
• Network connection
• Bluetooth® for access via LINDINSIDE
• Environmentally certified with registered EPD
• Design for efficient transportation using a minimum of packaging material

Demand-controlled ventilation can reduce energy use by creating an optimal indoor climate when and where it is needed. With INSQAIR®, a series of smart supply air diffusers, the focus has been taken on simplicity, maximum flexibility, and digitization.

Performance, a careful choice of materials, pre-mounted sensors, Bluetooth®, and network connection make ISQ a quiet and smart supply air solution also for the future.

Why INSQAIR® and ISQ?

• INSQAIR® = INnovative Smart Quiet AIR
• ISQ is part of INSQAIR, a series of products that share a range of technical solutions that resulted in international patents.

Simplicity and performance

• ISQ delivers comfort and efficient operation as a result of a unique technical performance. Solutions are developed for simplicity at all levels. Easy planning, easy installation, and easy commissioning.
• Simple user interfaces provide accessibility and overview.

Lowest Life Cycle Cost (LCC)

• Lindinvent develops systems for compliant and efficient climate control based on under-tempered supply air and on-demand control. As a rule, the system solution provides the lowest investment and life cycle costs.
• Increased productivity and efficiency
• Primarily cooling via the supply air results in increased air volumes. With increased air volumes, staff efficiency increases by up to 8% according to the study “Economic, Environmental and Health
• Implications of Enhanced Ventilation in Office Buildings” published in November 2015.

Maximum digitization

• The starting point is an architecture for stable network communication between control units that also are equipped with Bluetooth®. Measurement data is accessed via API, Modbus, HTTP, and app.

• The platform makes indoor climate data meaningful and creates room for maximum digitization.

• Sustainable design
  All products in the INSQAIR series have been designed with sustainability and good environmental choices in mind. The design has also been optimized to be able to ship the products efficiently and with a minimum of packaging.

• Environmental Product Declaration – EPD
  All supply air diffusers in the INSQAIR product series have EPDs. Ours can be downloaded via www.epdhub.com which is one of the international systems for third party verified EPDs. An EPD is based on the ISO 14025 method for Life Cycle Assessment of a product’s environmental impact. Suppliers contribute to improved environmental declaration of buildings by providing EPDs.

• Extreme flexibility
  With Lindinvent’s supply air diffusers, an attractive indoor climate can be achieved without installing
  water-borne cooling. This leads to increased flexibility when remodeling is needed. The active diffuser’s integrated sensors minimize the need for cabling. In many cases, walls can be erected or moved without having to reroute cables. Remodeling projects are also simplified by the fact that active devices in a flow area can be served from different supply air ducts.

Quick data ISQ-160

• Recommended flow range: Between 4 and 60 l/s
• Sound performance: Below 30 dB(A) up to 50 l/s at 100 Pa
•  Height: 256 mm

Quick data ISQ-200

• Rekommended flow range: Between 5 and 125 l/s
• Sound performance: Below 30 dB(A) up to 125 l/s at 100 Pa
• Height: 336 mm

System requirements

• Occupancy rate and levels of activity
• Home office, sick leave, holidays, or external assignments are all reasons that contribute to variations in the degree of attendance. To limit  energy use, a function must ensure that the total air flow is always adapted to the actual need. This minimizes the energy required to drive the air and reduces the amount of air that needs to be heated or cooled to maintain the correct room temperature.
• Free cooling without cold draft
• To minimize the need for, and thus the cost of, added cooling, the highest possible cooling effect should be obtained from under-tempered supply air. This requires a diffuser that provides good mixing with room air even at low supply air flows. The risk of cold draft prevents many systems from being able to reduce air flows and at the same time work with strongly under-tempered supply air. With good heat exchange, a heating battery is rarely needed. From Stockholm and southwards, it is almost 8000 h/year when no added cooling is needed. In Lulea, there are only about 250 h/year when outdoor air for free cooling is not available.
• Right pressure and right temperature
  Duct pressure/air flows and temperatures must be continuously optimized to achieve the lowest possible energy use.

Simplicity and collaboration
Smart climate control should be easy to design, install, commission, and maintain. Systems for lighting control and solar shading must be able to operate in collaboration with other installations for climate control.

Versatility and performance
Room climate control should be part of a system solution that efficiently and sustainably delivers a good indoor climate when and where it is demanded.

• Large flow range (Supply and extract air)
• Low noise level even with high airflow and high duct pressure
• Draft-free environment even with severely under- tempered supply air and a low airflow
• A compact design that simplifies installation work
•  Easy integration and deployment of accessories
• Diffusers with an adjustable air distribution pattern
•  Smart local control and optimization functions
• Parent functions for optimization and debugging
• Robust and reliable communication between devices
• Multiple and intuitive user interfaces
• Commissioning via app and Bluetooth®
• Good environmental choice in all aspects

Solutions based on the INSQAIR product series might be the world’s most versatile and thus useful systems for room climate control at workplaces. Consultants, installers, integrators, operating technicians, tenants, and property owners shall feel safe with their choice of system now and for future requirements.

ISQ in a conference room
Room climate control based on temperature, presence detection and carbon dioxide content.

• 10 – 250 l/s (ISQ-200)
• Silent regulation
• No additional dampers
• No wall mounted sensors

The CO2 sensor is retrofitted, using an expansion card, to one of the diffusers without costly integration. The sensor is used to adapt the airflow according to the carbon dioxide content but also to analyze the presence level. Via the content of carbon dioxide, the number of people in a room can be calculated. Integration with room booking systems enables the release of “non-shows” for new bookings.

Construction parts: ISQ-160

• A motorized airflow valve that is designed for quiet regulation even at high airflow. The valve consists of a disk that, via motor control, regulates the airflow through a permeable fiber material.
• Movable lamellas in the inlet to the diffuser part widen or narrow the airflow passage to the outlet of the diffuser part following changes in airflow. A high air velocity and thus a high air mixing capacity is maintained over the entire flow range. The lamellas can be blocked for an adjustable air distribution pattern.
• A patented flow measuring device. The meter is adapted for quiet regulation and a large flow range even at higher duct pressures. The location of the measuring device decreases the need for a straight section before the diffuser. The diffuser can, for example, be mounted directly after a 90° bend.

Construction parts: ISQ-200

• ISQ-200 is a rectangular supply air diffuser intended for horizontal installation in suspended ceilings. Air distributors in the plenum box provide a radial distribution pattern that mimics a circular diffuser.

• A patented motorized airflow valve. The valve is built around permeable fiber material and designed for silent regulation even at high duct pressures and high air flows.

• Movable lamellas in the inlet to the diffuser part widen or narrow the airflow passage following changes in the airflow. A high air speed and thus a high air mixing capacity is maintained over the entire flow range. Each lamella can be blocked individually for an adjustable air distribution pattern.

• A patented flow measuring device. The meter is adapted for quiet regulation and a large flow range even at higher duct pressures. The location of the measuring device decreases the need for a straight section before the diffuser. The diffuser can, for example, be mounted directly after a 90° bend.

Diffuser plate with control unit

• Removable plate with suspension device
• Bracket for room climate controller with sensors and Bluetooth®
• Openings for sensor detection
• Holder for room temperature sensor

Functions

Airflow control

• The air flow is regulated by the motor controlled air flow valve. A high supply air velocity from the diffuser is maintained also at low air flow by a self-acting gap opening. Air distributor plates in the diffuser provide an air pattern that mimics circular diffusers. The air distribution pattern is adjustable. Air flow is measured via the built-in flow sensor.

Room climate control

• The built-in room climate controller continuously controls the room for optimal function. This applies
  to air volumes but also additional heating or cooling. In the event of absence, the device works towards an operating mode that allows greater temperature fluctuations and the use of stored energy in the building’s frame structure. ISQ delivers the desired room climate by itself or in collaboration with several diffusers.

• Temperature and air quality measurement

• The diffuser is equipped with both a room- and a duct temperature sensor. A carbon dioxide- and humidity sensor is optional. The room temperature sensor is placed at the edge of the diffuser plate. The placement provides a more accurate and faster value than that from a separate wall-mounted sensor.

• Presence detection
  Presence flow, economy and comfort mode as well as lighting control are functions supported by the integrated presence sensor with almost 200 detection zones. Exhaust and supply air fan units can be controlled by the detected degree of presence.

• LINDINSIDE and Bluetooth®
  The diffuser is equipped with Bluetooth® for communication via Lindinvent’s mobile application LINDINSIDE. Via the app, operating values can be read and set points can be changed. Bluetooth® also enables connection to other external devices.

• Network communication
  Active diffusers are connected to other controllers to form a local area network (a CAN loop). All devices are addressed with a unique node ID. The CAN loop is in turn connected to Gateway NCE for communication with Lindinvent’s central unit or another parent system.

connections diagram

Accessories

• Flow balancing
  Airflow control unit DCV-BLb is used for extract air balancing.

• Carbon dioxide & humidity sensor
  The expansion card GQH-I or one of Lindinvent’s other carbon dioxide sensors is easily mounted afterward.

• Lighting control
  Relay box CBR enables double relay control via a push button, presence detection, and a selected lighting function. See SBDb for DALI control.

• Valve actuator control
  Valve actuator A40405(NC) or A41405(NO) for control of additional heat from radiators.

• Surface temperature control
  Sensor unit GT-S for valve actuator control with radiator temperature measurement.

• Electric radiator control
  Control box CBT for additional heating via heating batteries or electric radiators.

• Air fan cooling
  Additional cooling is regulated via control box CBF-E or CBF-S.

• External presence detector
  Presence detector GO-C or PD-2400 provides options regarding placement for the desired coverage.

• Setpoint adjuster
  CAN-connected user panel for wall mounting DRP. The panel can be configured to adjust the setpoint for room temperature or temporarily activate forced ventilation in the room. See also INOFFIX ® below.

INOFFIX®®
Scan QR codes placed in the facility or on equipment with the smart phone app InOffix®. Lindinvent offer a number of smart solutions for a smart and more efficient property. Learn more at inoffix.com

Functions:

• Adjust temperature
•  Adjust sunscreen
• Book rooms or order offered property services
• Put in a cleaning request
• Deviation rapport
• Surveys
• Check in/out
• Room info

A system solution with LINDINSPECT

• Visualization tool LINDINSPECT®
  LINDINSPECT® is a powerful web-based tool that enables a cohesive system environment for overall administration and visualization of everything from control equipment to sun protection and lighting control. Controllers are monitored and displayed on plan views with their climate data. Deviating values are marked. Operating conditions are indicated graphically.

• API
  Lindinvent’s REST-based API can be accessed for data that can be used by third-party applications. Lindinvent’s app InOffix® uses this API.

• Modbus TCP or Modbus RTU
  Individual control units can also be accessed in a system setup without LINDINSPECT®. Connection to an external superior system is made via Gateway NCE and then always either via Modbus TCP or Modbus RTU.

• LINDINSIDE
  The smart phone app LINDINSIDE allows connection via Bluetooth® directly to individual control units. Authorized personnel can identify other Bluetoth® units to easily make settings or read values using a smartphone. Data is stored in the cloud for easy access.

• Bluetooth ®
  Additional communication possibilities are created via Bluetooth®.

Easy and fast installation

• Room for installation
  Both ISQ-200 and ISQ-160 are delivered and installed, with a plenum box, as a complete unit. The suspended ceiling support structure needs to be in place with enough maneuvering space for easy duct connection. A flexible aluminum hose or push nipple is recommended.

• Mounting handles
  The diffuser is lifted and mounted with cardboard protection, cover profiles, and mounting handles robustly attached. Handles and protection are not removed until the unit is correctly fitted into the ceiling structure.

• Connection box CBD
  Peripherals as well as the combined cable for power supply and CAN communication are connected via the included external connection box CBD.

Dimensions (mm): ISQ-160

Dimensions (mm): ISQ-200

Technical specifications

• Material
• Diffuser part: Powder-coated sheet steel
• Plenum box: Galvanized sheet steel, C3
• Airflow valve (housing), distribution plates, measuring device, and lamellas: Thermoplastics (PS, PP)
• For a detailed material description:
• See Byggvarubedomningen.se
• Net weight ISQ-200: 12 kg
• Net weight ISQ-160: 11 kg
• Paint Colour
• RAL 9003 as standard;  please state RAL number at order.
• Suspended ceiling solutions
• ISQ is adapted for edge A and edge E. Profile edge DS must be specified when ordering: mounting angles is added as well as a cover frame on the diffuser frame. A fixed ceiling is specified when ordering. A safety grille is available to order..
• Duct connection
• ISQ-200: Duct Ø 200 mm
• ISQ-160: Duct 160 mm
• Notice: Connection via a flexible aluminum hose or push nipple is recommended.
• Temperature limits
• Operation: 10°C till 30°C; <85% RF
• Storage: -20°C till 50°C; <90% RF
• Cable (16-conductor)
• ISQ is delivered with an attached cable to connection box CBD. The standard length is 1 m. Maximum length at 10 m.
• Electrical system
• Supply voltage: 24 VAC
• Effect
• Stand by mode 2 VA
• Control mode: 4 VA (approx. 200–300 h/year)
• Communication
• CAN communication via signal cable with conductors also for voltage supply (shielded FLAQQBR: 2×1+1x2x0.22)
• Radio communication
• Bluetooth® 2.4 GHz
• Listen mode only for calls from app or similar.
• Beacon functionality etc requires transmission.
• IP-class
• Complies with IP 22
• CE-marking
• Complies with EMC and the low voltage directive.
• A certificate of compliance is available at lindinvent.com
• Presence detection
• PIR: Passiv IR-detector with 200 zones
• Detecting area: 107o x 107o
• Room temperature measurement
• Sensor with termistor of NTC type.
• Accuracy: ± 0,5 K
• Supply air temperature measurement
• Sensor with termistor of NTC type.
• Accuracy: ± 0,5 K
• Carbon dioxide measurement (option, expansion module)
• Card slot at the control unit for easy retrofitting. Automatic Background Calibrating sensor Measuring range: 400 – 10 000 ppm
• Accuracy: ± (30 ppm + 3%)
• Relative humidity measurements (option, expansion module)
• Card slot at the control unit for easy retrofitting. Measuring range: 0 – 100 % RH
• Accuracy (at 25oC and 50% RH):
• Relative humidity: ± 5% RH
• Absolute humidity: ± 1g/kg
• Condensing point: ± 1 K
• Air flow measurement and adjustment
• Supply air is measured and controlled by the built-in airflow valve with measuring flange.
• Measuring interval ISQ-200: 5 – 125 l/s
• Measuring interval ISQ-160: 4 – 60 l/s
• Sound levels in dB (A) according to diagrams. Accuracy: ± 5% or minimum ± 2 l/s
• Minimum straight duct section in front of the diffuser:
  • after 90 ° bend: 0 mm / no straight section required
  • after T-piece: 400 mm
  • at one-step dimensional change: minimum 200 mm
  • at two or more steps of dimensional change: minimum 400 mm
• Pressure measurement
• Duct pressure is calculated based on the air flow and the degree of valve opening.
• Accuracy: ± 10 Pa (minimum valve opening at 20% and minimum airflow at 10 l/s); Pressure range: 10 – 200 Pa

Connection box CBD

• Magnets on the enclosure bottom for easy mounting
• Terminal for the 16-pole ISQ cable
• Terminals for 24 VAC + CAN (CAN loop connection)
• AIN1 (general, 0 to 10 VDC)
• Terminal for lighting relay box CBR
• AOUT1 (general, 0 to 10 VDC)
• DIN1 with fuction PULL-UP [+5] ON (default) or OFF
• Terminal for 24 VAC & TRIAC (On/Off radiator valve actuator control). Maximum load TRIAC: 10 thermal actuators of 1 W each.
• AUX terminal for generic power supply (+5V)
• Terminal for I2C bus

Pressure, flow and sound levels

• The sound pressure levels LPA in the diagram
• corresponds to A-weighted sound level in the reverberation field at 10 m² equivalent sound
• absorption area. It corresponds to 4 dB acoustic attenuation in a normally damped room with 25 m³  room volume. See table for other room types. For an account of the diffuser throw lengths, see the design instructions for INSQAIR.
• Sound power level per octave band (Lw) = LP10A + K0 [dB]
• LP10A = Sound pressure level [dB (A)] from diagram
• K0 = Correction factor/octave band [dB] from table
• pt = Total pressure drop
• Self attenuation factor from table

Measurements of sound pressure and sound power have been carried out according to ISO 3741 and
ISO 5135. Measurements of intrinsic sound attenuation have beencarried out according to SS-EN ISO 7235:2009.

Correction for acoustic room attenuation [dB]

Correction factor, K0 [dB]

Self attenuation ISQ-160 [dB]

Self attenuation ISQ-200 [dB]

Tolerance [dB]

ISQ

± [dB]

| Octave band [Hz]
---|---
63| 125| 250| 500| 1K| 2K| 4K| 8K
200&160| 3| 3| 2| 2| 2| 2| 2| 2

Diagram ISQ-160, Sound pressure LP10A dB(A)

Diagram ISQ-200, Sound pressure LP10A dB(A)

Additional product documentation

Download available in ISQ product page at lindinvent.com

Instruction with assembly steps.
Start-up instruction| A guide on how to use the app LINDINSIDE to start-up commisioning of ISQ.
Maintenance instruction| Regarded as maintenance-free.
External connection diagram| ISQ and connection box CBD.
Building material declaration| Material declaration assessed by Byggvarubedömningen. EPD registered in June 2022.
End-user info| A brief introduction to Lindinvent’s system for smart ventilation.
Modbuslista| The latest modbus list for ISQ (ISQ-160/-200/-F/-V)
AMA-text| Descriptive text according to AMA standard.
Design instructions| For the INSQAIR® product series on flows, distribution patterns, CFD and type room solutions.

References

• INOFFIX
• Ventilation on demand - smart solutions, low life cycle cost
• Ventilation on demand - smart solutions, low life cycle cost

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