Key features The LYRA II cassette is an active chilled beam for ventilation, cooling and heating. This diffusion system offers high flexibility thanks to the combination of Flow Pattern Control, Coanda Safety Control & adjustable induction for the best comfort. It can be used as a traditional CAV chilled beam or equipped with Pi a very flexible VAV-chilled beam. With the introduction of the Pi advanced function it gives the LYRA II even more flexibility making it pressure independent and adding a Demand Controlled Ventilation function allowing the air diffusion to follow the building occupancy making the HVAC system highly efficient. It can also be supplied with integrated control to offer a plug and play solution. Quick Selection Ventilation Heating and cooling Compact chilled beam Adjustable induction Flow Pattern Control Integrated control In option: Demand Controlled Ventilation, Pressure independent (Pi) Specifications A compact chilled beam for flush mounting or exposed installation Ensures comfort with low temperature gradient and no draught Gives flexibility to the diffusion enabling lay out modification Has in option a Demand Controlled Ventilation function, available as retrofit, pressure independant Includes fastening brackets for rapid and simple installation Available in two sizes: - 00 00-00 00 Integrated control for plug and play installation Product code example Cassette chilled beam IQCC-00---0-0 The diagram shows the approximate cooling power Ptot in W with water flow qw=0.05, temperature difference between room air and supply air Δt= C. Temperature difference between mean water temperature and room temperature, Δt= C. Total air pressure drop 70 Pa. 9799 GB 0.05.7 (4)
Construction and functions power. This is done by adjusting the position of the front panel. Construction At low flows and pressures, it may be necessary to adjust the front panel to its highest position to keep the coanda effect. This chilled beam cassette is available in two sizes: 00 00 and 00 00 for integration into T- suspended ceiling system with options available for integration into other ceiling systems. If the chilled beam is equipped with a casing accessory, it can be freely suspended from the ceiling. Size 00 00 has Ø5 spigot connection and size 00 00 is available with Ø5 and Ø spigot connections. At high flows and pressure, the Coanda effect is easily maintained, so the front panel can be set in its lowest position, which increases the cooling and heating power by approximately 5-%. To adjust the front panel, pull or push it so that it snaps into position. Material and surface finish The chilled beam casing is mainly made of galvanized steel sheet. The front plate is powder coated standard RAL 90 white, % gloss which corresponds to NCS 050-Y. Heat exchanger coil made of aluminium fins mechanically bonded to copper pipes with Øout5 end connections and. MPa maximum working pressure. Functions The LYRA II chilled beam cassette is equipped with comfort control and has control equipment as an accessory. This combination provides high flexibility for dimensioning the indoor climate. The airflow can be adjusted with levers (Energy Control) by changing the number of open nozzles in the air duct. This is easily done during coissioning. This easy adjustment of air distribution and capacity makes it easy to adapt the system to changing conditions. On delivery, the standard beam has the maximum number of nozzles open as default (nozzle 3). The LYRA II chilled beam cassette is equipped with Coanda Safety Control (CSC). It can be varied between high effect mode (front in lowest position) and normal effect mode (front in highest position). CSC should be used with low airflows to ensure that the air stream adheres to the ceiling. High effect mode is obtained when the front is in the lowest position. This mode should not be used below 50 Pa. Flow Pattern Control (FPC) The FPC (Flow Pattern Control) function provides high flexibility. The combination of Flow Pattern Control (FPC) and the patented Energy Control gives unique characteristics to this chilled beam. FPC air deflector enables easy adjustment of the air direction simply by repositioning the plastic blades as shown in illustration below. This chilled beam is designed for flexibility with a number of features optional to the basic standard model. Pi Function, Flow Pattern Control (FPC air deflector), control and regulation equipment are the additional features available. 45 5 5 45 Energy Control Airflow for the chilled beam is easily adjustable with the patented Energy Control comprising variable nozzle settings mounted on rails that can be set for syetrical 4-way air distribution by adjustment of the nozzle in alignment with indicator on the chilled beam. adjustment is made using the leavers found on either longside. --3 --3 Coanda Safety Control (CSC) Coanda Safety Control (CSC) is a function that maintains the Coanda effect (adhesion of the air to the ceiling) while simultaneously ensuring the highest possible cooling 9799 GB 0.05.7 (4)
The image below shows an installation where air direction is set to in two directions and the airflow is set with Energy Control to the same nozzle on each side of a size 0. This installation options provide an efficient and comfortable air throughout the room. The chilled beam system will be able to follow different operation sequences depending on the controller chosen. It is possible to set different airflows according to occupancy level or to manage air quality thanks to a CO sensor connected to the controller. Three parameters can be set in the actuator : V0 for non-occupancy, Vmin for standard occupancy and Vmax (boost) for high occupancy level. Combined with the STRA- room controller, different modes are offered : OFF, Standby, unoccupied, occupied and boost. For each modes, different sequences between water and air are possible: cooling without free cooling, cooling with free cooling and airflow depending on CO. For high airflow applications as illustrated below, Energy Control is in syetrical setting, while FPC blades set at angle settings on opposing units to avoid colliding air streams. The Pi function keeps airflow at set point value despite pressure fluctuations in the duct. The Pi Function is easy to retrofit and applicable to any ductwork system owing to its pressure independent functionality. Note when using Pi Function, induction is always syetrical and a room controller is required to operate Pi Function with link to occupancy sensor. Duct pressure has to be maintained between 40 and 40 Pa. Connection The LYRA II chilled beam offers two types of connection alternatives. Single air connection located to the right of the water connection when looking in the air direction See figure, page 3. Double air connections, one on each long side, with a removable lid giving you the option on site to choose which air spigot to use and which to cover. See figure,page 3 Caution! If Pi Function is installed as a retrofit, there is no need for a damper before the chilled beam. Any previously installed damper, should be set to fully open position or removed. Figure : Single airconnection Instructions For installation, maintenance and coissioning instructions, please refer to specific manuals available on the Internet at www.flaktwoods.com. Figure : Double airconnection Pi Function (Option) For Demand Controlled Ventilation operation, the Pi Function accessory must be mounted on the chilled beam. Thanks to this function, an actuator will then change automatically the nozzle position in order to change primary airflow. 9799 GB 0.05.7 3 (4)
Technical data for cooling/heating Heating Cooling LYRA II-00 - Normal airflow, Ø5 Table : - Pressure drop, Δpw= kpa LYRA II-00 - Normal airflow, Ø5 Table : - Pressure drop, Δpw=5. kpa 3 5.3.3 4.9 9. 3.3.7 7 374 440 497 540 P tot, W 0 35 45 55 5 34 5 44 5 79 79 9 3 5 73 55 5 34 34 37 LA 94 35 35 4 455 473 Table : - Pressure drop, Δpw=5. kpa 3.7. 3.. 37. 4. 37 395 53 04 9 7 P tot, W 9 475 09 707 773 340 555 704 09 77 9 54 0 7 33 33 05 3 4 47 47 LA 5 400 47 54 5 5 3 9 Table 3: - Pressure drop, Δpw=9. kpa 3. 7.4.9 3.7 3.4 43. 343 5 73 7 4 93 P tot, W 45 4 9 05 77 507 7 93 77 4 3 434 44 477 493 3 4 579 3 57 LA 4 0 7 773 795 Table 4: - Pressure drop, Δpw=9. kpa 3 5..7 37.9 47.7 5. 3.0 449 9 4 93 7 3 P tot, W 55 35 3 5 5 3 5 90 9 333 49 494 5 434 500 55 5 533 40 579 7 700 707 7 LA 50 7 34 75 4 9 3 3 34 3 Table 5: - Pressure drop, Δpw=9. kpa 3 5.5 7. 3.9 50..4 70. 459 70 4 50 9 P tot, W 5 49 54 33 440 5 99 5 39 53 3 44 5 544 50 57 9799 GB 0.05.7 43 5 75 747 7 3 5 54 7 3 3 09 5 5 5 34 LYRA II-00 - High airflow, Ø5 3.7. 3.. 37. 4. 3 59 4 9 94 97 5 5 5 59 3 LA 9 5 3 39 3 9 LYRA II-0 - Normal airflow, Ø5 3. 7.4.9 3.7 3.4 43. 4 54 3 345 39 5 339 43 40 49 50 LA 4 5 575 5 33 LYRA II-0 - High airflow, Ø5 3 5..7 37.9 47.7 5. 3.0 3 373 34 39 39 34 4 49 5 59 5 LA 393 533 40 49 5 3 3 34 3 LYRA II-0 - High airflow, Ø Table : - Pressure drop, Δpw= kpa LYRA II-0 - High airflow, Ø 5.3.3 4.9 9. 3.3.7 LA Table 9: - Pressure drop, Δpw= kpa LYRA II-0 - High airflow, Ø5 3 7 05 4 5 Table : - Pressure drop, Δpw= kpa LYRA II-0 - Normal airflow, Ø5 Table 7: - Pressure drop, Δpw= kpa LYRA II-00 - High airflow, Ø5 LA 5 735 5 90 934 953 3 4 (4) 3 5.5 7. 37.9 50..4 70. 39 33 374 40 4 47 39 43 499 534 54 55 LA 399 539 3 95 3 Note: Pressure drop listed are with a water flow, qw=0.05
Technical and sound data Conditions for cooling performance tables Total cooling effect of beam, Ptot = cooling effect of coil, Pcoil + cooling effect of supply air, Pair. Air side total pressure drop of 70 Pa. Water flow rate of 0.05 per circuit. Δt= C between room temperature and mean water temperature. Δt= C between room temperature and supply air temperature. Performance for water flows other than 0.05 can be found in the product selection tool, ExSelAir (exselair.flaktwoods.com). The tables here are based on tests done according to the EN 5 standard. The purpose of this standard is to be able to compare performances of different chilled beams on the same terms. The external heat supply method has been used where heating has been supplied evenly over the floors and walls such that the on-coil temperature is the same as the temperature at. m above floor level (seated head height). In actual conditions, the temperature difference is normally C. This is why the temperature Δt should be increased by C to avoid over dimensioning of the beam. This means that the table value concerned can be increased by %. As such it is not uncoon for selections in ExSelAir to have C increase between ceiling temperature and room temperature. Definitions ql Ptot Pcoil Pcoil heat Δt Δpw Supply airflow, Total cooling effect, W Cooling effect of the coil, W Heating effect of the coil, W Difference between room air temperature and average water temperature, C Pressure drop water, kpa Δtw ( C) = Pcoil (W) / 0 (US imperial) - Δtw( F) = P coil (BTU/h) / 77 Sound pressure level in a room with m² room absorption, Δtw LA Sound power level Size 00 0 Tol +/- 3 4 4 5 - -3 3 Correction Koct db Octave band, mid-frequency, Hz 50 500 00 - - -3-000 -3-3 4000 - - 000 - -7 3 The sound power levels for every octave band are obtained by adding together the sound pressure level L A,, and the corrections K oct given in the table above, according to the following formula: LW = LA + Koct Correction Koct is the average in the area of application of the chilled beam. Sound attenuation The average sound attenuation ΔL of the chilled beam from duct to room includes the end reflection of the connecting duct. Size 0 0 Tol +/- 3 9 9 5 7 7 3 9799 GB 0.05.7 Correction Koct db Octave band, mid-frequency, Hz 50 500 00 4 7 9 5 (4) 000 4000 3 000 4 5 3
Correction of cooling capacity for other water flow than 0.05 Pressure drop Δp water cooling Ptot= cooling power air + coil Pcoil= cooling power coil 9799 GB 0.05.7 (4)
Dimensions and weights LYRA II-00, recessed version Øa 5 Øb 5 h 0 h 77 h3 95 h4 77.5 h5 35 h L 594 L 55 L3 40 L4 75 L5 95 L 35 w 594 w 57 w3 34 w4 w5 w 97 39 95 LYRA II-00, exposed version Øa 5 Øb 5 b 0 c 79 h 0 h 77.5 h3 35 h4 50 L 75 LYRA II-00, Recessed version LYRA II-00, Exposed version 9799 GB 0.05.7 w 0 w3 3.5 = Cooling water in = Cooling water out = Heating water in = Heating water out Air connection is male. Water connections are male. Version w 75 Operating weight (incl. water) Cooling 7 kg 9 kg Delivery weight kg kg 7 (4) Operating weight (incl. water) Cooling and heating kg 0 kg
Dimensions and weights LYRA II-0 Øa Øa 5 Øb 5 h h 0 55 h3 77 h4 97 h5 95 h 7 h7 35 h L L 594 55 L3 40 L4 L5 75 95 L w w w3 35 94 7 94 w4 97 w5 39 w 95 LYRA II-0 Freely suspended Øa 5 Øa b 0 Øb 5 c 79 h 0 h 55 h3 77.5 h4 35 h5 50 L 75 LYRA II-0, Recessed version LYRA II-0, Exposed version 9799 GB 0.05.7 w 0 w3 3.5 = Cooling water in = Cooling water out = Heating water in = Heating water out Air connection is male. Water connections are male. Version w 0 Operating weight (incl. water) Cooling 3 kg 33 kg Delivery weight 9 kg 3 kg (4) Operating weight (incl. water) Cooling and heating 3 kg 34 kg
Accessories Installation of chilled beam with wire QFAZ-3-0-0 The chilled beam cassette can also be suspended with wires. In this case, the beam's height is easily adjusted with a stepless fastening device. This type of installation is suitable for metal or concrete ceilings. Alternately, a wire can simply be wound round a bar in the ceiling. A special concrete fastener for concrete ceilings is included in every kit. Figure 4: QFAZ- If there is a need for adjusting the installation height, suspension brackets and suspension rods M (QFAZ-) can be ordered as well. With the lock system it is easy to adjust the height installation of the chilled beam. Figure 5: QFAZ- QFAZ- QFAZ--7- Figure : Suspension bracket QFAZ- Freely suspended The chilled beam can be adapted for exposed installation. This is done by ordering the accessory IQAZ-33, which consists of a casing and a front plate adapter. This accessory is fitted on the cassette while the cassette is suspended from the ceiling. In the freely suspended version, the air outlet is specially designed to direct the airflow slightly upwards. This reduces the air velocity in the occupied zone and ensures that air from the room mixes with the chilled air before it reaches the occupied zone. Directing the air upwards also creates the Coanda effect without needing to rely on nearby surfaces. Figure 3: QFAZ-3-0-0 Installation with fastening bracket QFAZ- A suspension bracket facilitates the suspension of chilled beams from the ceiling. Two brackets are used for each beam. The brackets can be ordered in advance or along with the chilled beam. The suspension brackets can be fitted directly to the ceiling or onto channel support bars. The chilled beam is simply attached by pressing it against the bracket until it clicks into place. No tools are needed. After this, the chilled beam can be adjusted lengthwise by sliding the bracket along the beam's fastening points. To adjust it sideways, slide the threaded bars along the grooves in the bracket. 9799 GB 0.05.7 9 (4)
Duct enclosure Duct enclosure (IQAZ-33) is available in three size ranges for concealing water pipes and air ducts : to 50 cm 50 to 90 cm 90 to 70 cm Figure : IQAZ-35 For more information regarding the installation procedures, please see the installation manual for this chilled beam. Integrated control LYRA II is available with integrated control by ordering the accessory STRZ-7. The room controller can be positioned in three different locations depending on the desired level of accessibility. Figure 7: IQAZ-33 Actuators and valves (STRZ-70-3-0-0-) are fixed on LYRA II in factory. It is delivered with push on connections. A very simple operation allows the installer to connect it with no risk of leakage. The valves, optional condensate sensor and optional PIR are factory wired to a terminal block which is mounted on the side of the cassette unit. The PIR is mounted and integrated in the frontplate. If the Pi-actuator (IQAZ-35) is choosen it can also be wired to the terminal block. The integrated control offers Modbus or Bacnet counication as standard and it allows you to connect directly to the IPSUM system without using the IPSUM Connection unit. Purging nipple (IQAZ-3) Purging nipple is available on demand. From the room controller, it is possible to make the coissioning, increase and decrease temperature and display main information. For more information regarding this product and related accessories, please see the STRA- technical catalogue and STRA Accessories catalouge. Figure : Purging nipple Flexible hoses (IQAZ-9) Flexible hoses are available with push-on connection for easy installation. Mounted on side The room controller is factory mounted on the short side of LYRA II and wired. This configuration uses an external temperature sensor installed below the coil. Temperature and condensation (in option) sensor are factory wired. Figure 9: IQAZ-9 flexible hose with push-on connection. actuator for Pi Function This chilled beam can be ordered with pressure independent airflow control function which requires installation of IQAZ-35 nozzle actuator. The actuator also can be supplied loose for post installation. 9799 GB 0.05.7 (4)
Integrated in front plate The room controller is factory mounted integrated in the front plate of LYRA II and wired. This configuration uses the temperature sensor built into the room controller. Condensation sensor (in option) is factory wired. The controller has postions to be always flush with the front plate (when coanda safety control function is used). Figure : STRA- Room Controller Figure : STRZ-70 Valve & actuator Supplied loose The room controller is supplied loose. On site the installer needs to connect the room controller to the terminal block placed on the side of LYRA II. This configuration uses the integrated temperature sensor in the room controller. Condensation sensor (in option) is factory wired. Room Controller STRA- STRA- is a pre-prograed room controller intended to control the temperature and the CO level in rooms. It manages the water coil actuator and the actuator of the Pi function. It is pre-prograed with counication and is intended for use in premises with high comfort and low energy demands. The STRA- is able to optimise energy consumption in rooms depending on different parameters: occupancy, CO level, outside conditions (free cooling feature) and timetable. Different modes are offered : OFF, Standby, occupied and boost. For each modes, different sequences between water and air are possible : cooling without free cooling, cooling with free cooling and airflow depending on CO. For more information regarding this product, valves, actuators and related accessories, please see the STRA- technical catalogue. 9799 GB 0.05.7 (4)
Product code and accessories Product code Cassette chilled beam IQCC-aaa-bb-c-dd-e Nominal length (aaa) 00 = 0 cm 0 = 0 cm k0% (bbb) 335 = IQCC-00-bb-c-0/0-e 570 = IQCC-00-bb-c-03/04-e 55 = IQCC-0-bb-c-0/0-e 940 = IQCC-0-bb-c-03/04-e 90 = IQCC-0-bb-c-05/0-e Airflow V0, Vmin, Vmaxin (cccccc) a) cc---- = V0 --cc-- = Vmin ----cc = Vmax Connections (bb) = Water to the left of air a) Ordering example below = spigots (alternative connection) Water near air connections Eg: IQAZ-3-335-0040 k0% = 3.35 V0 = Coil(c) = Cooling = Cooling and heating 3 = Cooling with purging nipple 4 = Cooling and heating with purging nipple Vmin = 4 Vmax = 0 Casing freely suspended (only for IQCC-aaa--c-dd-) Size (bbb) 00 = 0 cm 0 = 0 cm Energy Control (dd) 0 = Standard airflow, without FPC, Ø5 0 = Standard airflow, with FPC, Ø5 03 = High airflow, without FPC, Ø5 04 = High airflow, with FPC, Ø5 05 = High airflow, without FPC, Ø (only aaa=0) 0 = High airflow, with FPC, Ø (only aaa=0) Execution (c) = Cooling, Ø5 = Cooling and heating, Ø5 3 = Cooling, Ø (only IQCC-0) 4 = Cooling and heating, Ø (only IQCC-0) 5 = Cooling, Ø5 with IQAZ-35 = Cooling and heating, Ø5 with IQAZ-35 7 = Cooling, Ø with IQAZ-35 (only IQCC-0) = Cooling and heating, Ø with IQAZ-35 (only IQCC-0) Suspension alternatives (e) 0 = For installation in false ceiling = For exposed installation (IQAZ-33 should be ordered separately) Accessories Pi Function actuator (With Modbus Counication) IQAZ-35-03-c--e Cable execution (c) = Cabel m without contact = Cabel 0 with RJ45-contact (female) for use with IPSUM Connection unit and is not compatible in combination with STRZ-7 a) 9799 GB 0.05.7 STRZ-7-bb-cc-d-ee Placement of controller (bb) 00 = Without room control (slave) 0 = Supplied loose 0 = Mounted on short side (only for e = 0 in IQCC) 03 = Integrated in front plate Installation (e) = Installed on chilled beam = Supplied loose Duct enclosure (ddd) 000 = without 050 = -50 cm 090 = 50-90 cm 70 = 90-70 cm Integrated control a) Please note that RJ45-contact has a extended delivery time Pre-set Pi actuator IQAZ-33-bbb-c-ddd IQAZ-3-bbb-cccccc (4)
Sensors, valvekit (valve and actuator) (cc) 0 = Cooling valvekit 0 = Cooling valvekit and condensate sensor 03 = Cooling valvekit and PIR 04 = Cooling valvekit, condensate sensor and PIR 05 = Cooling and heating valvekit 0 = Cooling and heating valvekit, condensate sensor 07 = Cooling and heating valvekit, PIR 0 = Cooling and heating valvekit, condensate sensor, PIR Connection (d) = Terminal block Chilled beam (ee) 03 = IQCC-00 04 = IQCC-0 Fastening brackets Set with pieces, unpainted set per beam Suspension rods M Set with pieces. Length 500 sets per beam QFAZ--7- QFAZ- Gripple (suspension QFAZ-3-0-0 system with wire) Complete set for one chilled beam cassette 4 wires, 4 concrete fasteners Flexible hose Length = 550 Push-on 5 connection Supplied loose Purging nipple 9799 GB 0.05.7 IQAZ-9-550-00 IQAZ-3-5-0 3 (4)
Order example Here is an example to demonstrate an order complete with typical accessories. For more information about orders or specific requirements for special units, please contact your nearest sales office. An order example for a room with 5 chilled beams. The beams are calculated as 0 cm length for required airflow and cooling capacity in product selection tool ExSelAir (http://exselair.flaktwoods.com). Table : Chilled beams (CAV) Product codes IQCC-0---4-0 QFAZ--7- Description LYRA II chilled beam, water cooling and heating, with FPC, for T ceiling Fastning bracket, set of for installation Quantity 5 5 Table : Chilled beam -VAV Demand Controlled Ventilation Product codes IQAZ-35-03--- Description Quantity piece per chilled beam as required Description Quantity Pi Function, actuator Table 3: Valves, actuators and flexible hoses Product codes a) Valve + valve actuator Flexible hose push-on STRZ-70-3-0-0- IQAZ-9-550-00 a) For more information, please see the STRA- technical manual. Table 4: Controls Product codes STRA--00-0-00 STRZ-05-0 STRZ-- STRZ-- a) Description Quantity Room Controller External temperature sensor Condensation sensor Transformer a) For more information, please see the STRA- technical manual. Table 5: Controls options for Demand Controlled Ventilation Product codes STRZ-09- STRZ--- a) Description Occupancy detector (for single office application) CO sensor (for meeting room) Quantity a) For more information, please see the STRA- technical manual. Table : Integrated controls Product codes IQCC-00---0-0 STRZ-7-03-04--03 Description LYRA II chilled beam, water cooling with FPC and for installation in T ceiling Integrated controls in frontplate, incl valvekit (valve and actuator), condensate sensor and PIR. 9799 GB 0.05.7 4 (4) Quantity