Air Handling Unit kits for connection to DX outdoor units EKEACB/EKEXVA Expansion valve kit and control box for easy connection between DX outdoor unit and air handling unit J Create an optimal indoor comfort for commercial spaces J Integration of an AHU into a DX system ensures a fast response to changing loads, high energy efficiency and easy design J No space is too small or too big with expansion valve kits ranging from 5 up to 69.3 kW J Future proof system minimising carbon footprint J Customised control possibilities thanks to five different control algorithms
2 Why use DX outdoor units with Air Handling Units? High comfort levels J Rapid response of supply air temperature to changing loads, results in a steady indoor temperature J VRV offers the ultimate comfort thanks to continuous heating, also during defrost Low carbon footprint and operating costs J DX heat pumps are highly efficient inverter units using a lower GWP refrigerant J By integrating a VRV heat recovery system, excess heat from rooms in cooling can be reused to heat up incoming fresh air Easy design, all components integrated J A DX system is an all-in-one system, no boilers, tanks or pumps are needed reducing the total investment cost One-stop shop, Daikin’s fresh air package J A plug & play package with a Daikin DX outdoor unit and Daikin Air Handling Unit J One point of contact for the design, installation and commissioning, streamlining the process Total solution operation example Outside air = 30°C Fresh air AHU connected to VRV outdoor unit: The AHU takes care of the heat loads of fresh air securing air supply at 21°C. VRV system with indoor units only take care of comfort cooling (or heating) and the indoor heat loads (lighting, people, machines, sun radiation, etc)
3 Daikin Air Handling Unit kits for connection to DX outdoor units Expansion valve set (EKEXVA*) J Controls the refrigerant flow in the AHU DX coil J Fully brazed and wired in case of a Daikin AHU Expansion valve kits J 3 new capacities (300, 350, 400) offer a complete range of expansion valve kits from 5 to 69.3kW J Improved flexibility thanks to combination ratio from 65% up to 110% J Unified range connectable both to R-32 and R-410A systems J Can be used in the most extreme outdoor conditions, down to -20°C J Fully compliant to IEC60335-2-40, thanks to Shîrudo Technology Control box J Complete offer of 5 control possibilities J Daikin integrated or third-party controller J Control of return air or fresh air supply temperature J All control methods unified in one box J Hinged door for easy servicing NEW NEW Specifications Unified control box Control box (EKEACB) J Controls the expansion valve set and outdoor unit(s) capacity J Mounted and wired in case of a Daikin AHU Extended operation range -20°CWB > 52°CDB EKEXVA – Expansion valve kit EKEACB – Control box EKEACB Layout Pair | Multi | Mix Dimensions Unit mm 300x400x150 Weight Unit kg 5.1 Ambient installation conditions Min °CDB -20 Max °CDB 52 Power supply Phase 1~ Frequency Hz 50/60 Voltage V 220-240/220 Ventilation EKEXVA 50 63 80 100 120 140 200 250 300 350 400 450 500 Dimensions Unit mm 404x217x80.5 Weight Unit kg 2.9 Operation range On coil temperature Heating Min. °CDB 10.0 Cooling Max. °CDB 35.0 Ambient installation conditions Min. °CDB -20.0 Max °CDB 52.0 Sound pressure level Cooling Nom. dBA 36.5 37.5 38.6 39.5 40.5 41.1 42.5 43.5 44.3 45.1 45.6 46.1 46.5 Nom. dBA 24.8 25.8 26.8 27.8 28.8 29.4 30.8 31.8 32.5 33.3 33.8 34.3 34.8 Refrigerant Type / GWP R-32 / 675 R-410A / 2,087.5 Piping connections Liquid Type mm Braze connection (only liquid line connected) OD mm 6.35 9.52 12.7 Click for more information on EKEACB or EKEXVA outdoor units
4 Air Handling Unit kits Control possibilities Every application is different. Is there a constant load or not, how to control your temperature and which controls are available? With our complete offering of 5 control possibilities, anything is possible. Flow chart to select your control type Type of application? Control type benefits Sensor Used Controller W control – control of supply or return air temperature J Responds to load variation (capacity is changed as a function of measured temperature, but slower than X- control) J Air temperature control J Easy to integrate, as no additional programming is needed for most standard AHU controllers Td, Ts/f or Tr (field supplied) External controller (DDC) using a proportional 0~10 V signal for capacity control (5 steps) X control – control of supply or return air temperature J Fastest response to load variation (capacity is immediately changed as a function of measured temperature) J Precise air temperature control J Ideal for comfort sensitive applications. This is also used by default in Daikin AHU controls Td, Ts/f or Tr (field supplied) External controller (DDC) using a proportional 0~10 V signal for capacity control (Stepless) Y control – control of evaporating/condensing temperature J Cost effective and simple solution, no additional DDC controller required J Fixed evaporating/condensing temperature, no direct temperature control J Ideal for applications with a constant cooling/heating load R2T/R3T (Daikin supplied) 3rd party thermostat (Daikin controller for field settings) Fresh Air AC (100% recirculation applications) 3rd party controller (DDC) Daikin controller Type of control? Type of load? Priority to ease of integration or priority to precise temperature control? Ease of integration Precise control Constant Variable Z control (Pair/multi/mix) Z’ control (Pair/multi/mix) Y control (Pair) X control (Pair) W control (Pair)
5 Sensors used Legend Td : discharge (supply) air temperature Ts : suction (return) air temperature Tf : fresh air temperature Tr : room air temperature R2T/R3T : Refrigerant (liquid/gas line) temperature T Td s Tf Tr + R2T/R3T /R4T /R1T Control type benefits Sensor Used Controller Z’ control – control of supply air temperature J Cost efficient and simple solution, no additional DDC controller required J You can combine VRV indoor units and AHUs in one system or connect several AHUs to 1 outdoor unit J Ideal for pre-conditioning of fresh air via Td temperature control J Less accurate room temperature control compared to X/W/Z control R4T Daikin supplied) Daikin controller (set point can be set via field setting) Z control – return air temperature control J Cost efficient and simple solution, no additional DDC controller required J You can combine VRV indoor units and AHUs in one system or connect several AHUs to 1 outdoor unit J Ideal for AHU’s that operate at 100% recirculation like indoor units or if no particular supply temperature required J No supply temperature control R1T (Daikin supplied) Daikin controller (set point can be set via remocon or via C1C2) Exhaust Air Fresh Air Supply Air Return Air
6 With our wide capacity range and different control options, a variety of layout possibilities to match your application: J Pair layout: one or more outdoor units combined with 1 air handling unit J Multi layout: one outdoor unit combined with multiple air handling units J Mix layout: one outdoor unit combined with an air handling unit AND indoor units Multi layout One VRV heat pump connected to several AHUs J with Z, Z’ control and field supplied controls on AHU side. J not allowed for VRV H/R J no interlaced coil possible Pair layout One ERA or VRV heat pump (system) connected to one AHU through one refrigerant circuit J with W, X, Y, Z, Z’ control J not allowed for VRV H/R Several ERA or VRV heat pumps connected to the interlaced coil of one AHU through several refrigerant circuits J with W, X, Y control J not allowed for VRV H/R and VRV-i One VRV heat pump (system) connected to the interlaced coil of one AHU through several refrigerant circuits J with W, X, Y control J not allowed for VRV H/R and VRV-i Refrigerant piping F1-F2 P1-P2 Mix layout VRV indoor units and AHU(s) mixed in the same VRV heat pump or heat recovery system J with Z, Z’ control and field supplied controls on AHU side J no interlaced coil possible J hydrobox not possible Air Handling Unit kits Layout possibilities
7 Main components with detailed piping and wiring principle Communication Liquid Thermistors EXV control 2. Air Handling Unit with DX coil (Daikin or 3rd party) 3. Expansion valve kit (Regulates liquid line refrigrant flow) 1. Outdoor unit (ERA or VRV) 4. Control box (Controls the expansion valve kit and outdoor unit capacity) 5. Daikin or DDC controller (Depends on the type of control) Detailed combination table P: Pair layout - One or more outdoor units connected to an (interlaced) coil of one AHU M: Mix or multi layout - Combination of (multiple) AHU(s) with (mix combination) or without (multi combination) VRV DX indoor(s). Only Z or Z’ control possible (no interlaced coils) (1): For 65%<CR<75% please refer to the specifically required coil size (2): Only Z or Z’ control possible (no interlaced coils) (3): Technically is possible to connect H/R in pair combination, but there’s no benefit to do it or & H/P (RYYQ, RXYQ, RXYSQ, RXYTQ, RXYLQ, RXYS(C)Q, RWEYQ (H/P)) P/M Pair and multi: 65% (1) < CR < 110% Mix: CR < 110% and 50% < IU CR < 110% VRV-i (RKXYQ) P(2)/M Pair and multi: 65%(1) < CR < 110% Mix: CR < 110% and 50% < IU CR < 110% H/R (REYQ, RWEYQ (H/R)) M(3) Multi(3) : 65%(1) < CR < 110% Mix: CR < 110% and 50% < IU CR < 110% H/P (RXYSA, RXYA) P/M Pair and multi: 65%(1) < CR < 110% Mix: CR < 110% and 50% < IU CR < 110% H/R REYA M(3) Multi(3): 65%(1) < CR < 110% Mix: CR < 110% and 50% < IU CR < 110% Range Outdoor Unit Control box Expansion valve kits EKEXVA EKEACBVE 50 63 80 100 125 140 200 250 300 350 400 450 500 ERA ERA100A7V1B P - P(a) P(b) P(b) - - - - - - - ERA125A7V1B P - - - P(b) P(b) - - - - - - ERA140A7V1B P - - - P(a) P(b) P(b) - - - - - ERA100A7Y1B P - P(a) P(b) P(b) - - - - - - - - - ERA125A7Y1B P - - - P(b) P(b) - - - - - - - - ERA140A7Y1B P - - - P(a) P(b) P(b) - - - - - - - ERA200AMYFB P - - - - - P(b) P(b) - - - - - - ERA250AMYFB P - - - - - - P(b) P(b) - - - - - ERA250AMYFB P - - - - - - P(a) P(b) P(b) - - - - DX coil volume limitations when combined with ERA: Please follow the AHU HEX volume limitations according to the table below: Capacity class Minimum heat exchanger volume [dm3] Maximumheat exchanger volume [dm3] Pair combination (a) Pair combination (b) Pair combination 63 1,18 1,02 2,08 80 1,64 1,42 2,64 100 1,74 1,51 3,30 125 2,29 1,98 4,12 140 2,94 2,54 4,62 200 3,49 3,02 6,60 250 4,58 3,97 8,25 300 5,23 4,53 9,90
8 Condensing unit range connectable to Air Curtains and Direct Expansion (DX) Air Handling Units (AHUs) for fresh air and recirculation applications. Range based on inverter technology with the use of lower GWP R-32 refrigerant for capacities from 6,3 kW up to 30 kW. Securing the highest comfort conditions due to the quick response of DX systems and the available control logics. Growing together towards a sustainable future ERA-AYF ERA-AY/AV
9 ERA-AV/AY/AYF NEW Presenting the Daikin ERA J New line up with low GWP refrigerant R-32 up to 12 HP J Immediate cooling and heating under any ambient or room conditions J Better management of load for medium size spaces due to VRV technology J Continuous Heating: Avoid cold drafts during defrost cycle J Benefit from the high efficiency and fast response time of ERA units for changing loads J Energy saving due to inverter technology J Wide range of expansion valve kits available for capacities of 6,3 to 30 kW Lower CO2 footprint ERA-AV ERA-AY ERA-AYF ERA100AV ERA125AV ERA140AV ERA100AY ERA125AY ERA140AY ERA200AYF ERA250AYF ERA300AYF Capacity range HP 4 5 6 4 5 6 8 10 12 Cooling capacity Prated,c kW 12.1 14.0 15.5 12.1 14.0 15.5 22.4 28.0 33.5 Heating capacity Prated, h kW 12.1 14.0 15.5 12.1 14.0 15.5 22.4 28.0 33.5 Max. kW 14.2 16.0 18.0 14.2 16.0 18.0 25.0 31.5 37.5 Dimensions HxWxD mm 869x1,100x460 1,430x940x320 1,615x940x460 Weight kg 102 144 180 Sound power level Cooling dB(A) 67.0 68.1 69.0 67.0 68.1 69.0 73.2 74.0 76.1 Heating dB(A) 69.0 70.0 71.0 69.0 70.0 71.0 73.5 74.0 76.0 Sound pressure level Cooling dB(A) 49.0 51.0 49.0 51.0 58.1 57.0 60.0 Operation range Cooling Min °C °CDB -5 ~ 46 -5 ~ 52 Heating Max °C °CWB -20 ~ 16 -20 ~ 15.5 Refrigerant Type/GWP R-32 / 675.0 R-32 / 675.0 Charge tCO2eq/ kg kg 3.40/2.30 5.2/3.51 7/4.73 7.1/4.79 Piping connections Liquid OD mm 9.52 9.5 12.7 Gas OD mm 15.9 19.1 22.2 Max piping length m 50 50 Power supply Phase/Freq./ Voltage Hz/V 1~/50/220-240 3N~/50/380-415 3N~/50/380-415 Current - 50Hz Max. fuse amps (MFA) A 32 16 25 32 ERA-AY/AV ERA-AYF
10 Daikin Fresh Air package What is included? J A plug & play package with a Daikin DX outdoor unit and Daikin Air Handling Unit J Factory fitted and welded DX coil, expansion valve kit and control box J One point of contact Simplified business J Unique total solution approach of heating, cooling and ventilation J Off-the-shelf compatibility between Daikin outdoor unit and Daikin AHU J Plug&play control for outstanding reliability J Peace-of-mind thanks to a single point of contact Complete range of possibilities D-AHU Professional D-AHU Modular R D-AHU Modular P 750 m3/h up to 144,000 m3/h 500 m3/h up to 25,000 m3/h 500 m3/h up to 25,000 m3/h Factory fitted and welded DX coil, expansion valve kit and control box Add the AHU design in Xpress (including capacity, dimensions, refrigerant connection location,…) J Infinite variable sizes J Tailored to the individual customer J Pre-configured sizes J Plug and play concept J EC Fan technology J Heat recovery wheel (sorption and sensible technology) J Comact design J Pre-configured sizes J Plug and play concept J EC Fan technology J High efficiency aluminium counter flow PHE J Comact design Select your design in ASTRA software Share with Xpress VRV or ERA outdoor condensing unit Daikin Air Handling Unit STEP 1 STEP 2 Simple selection in 2 steps
11 Integration with 3rd party Air Handling Units Also for the integration with 3rd party AHU’s Daikin provides expert support for the design and installation. Selection of the expansion valve kit – Recirculation application EKEXVA Class Allowed heat exchanger capacity (kW) Allowed heat exchanger volume (dm3)* Minimum Nominal Maximum Minimum Maximum General Limits (65%<CR<75%) Only for pair and multi layout Maximum 50 5.0 5.6 6.2 0.95 1.09 1.65 63 6.3 7.1 7.8 1.02 1.18 2.08 80 7.9 9.0 9.9 1.42 1.64 2.64 100 10.0 11.2 13.1 1.51 1.74 3.30 125 13.2 14.0 15.4 1.98 2.29 4.12 140 15.5 16.0 21.0 2.54 2.94 4.62 200 21.1 22.4 24.6 3.02 3.49 6.60 250 24.7 28.0 30.8 3.97 4.58 8.25 300 30.9 33.5 36.9 4.53 5.25 9.9 350 37.0 40.0 44.0 5.48 6.32 11.55 400 44.1 45.0 49.5 6.04 6.97 13.2 450 49.6 50.4 55.4 6.99 8.07 14,5 500 55.5 56.0 61.6 7.55 8.72 16.5 NEW NEW NEW EKEXVA Class On-coil air temperature [°C] 14WB 16WB 18WB 19WB 20WB 22WB 24WB 20DB 23DB 26DB 27DB 28DB 30DB 32DB kW kW kW kW kW kW kW 50 3.8 4.5 5.2 5.6 5.9 6.0 6.2 63 4.8 5.7 6.6 7.1 7.5 7.7 7.8 80 6.1 7.2 8.4 9.0 9.5 9.7 9.9 100 7.6 9.0 10.5 11.2 11.8 12.1 12.3 125 9.5 11.3 13.1 14.0 14.8 15.1 15.4 140 10.8 12.9 15.0 16.0 16.9 17.3 17.6 200 15.1 18.0 21.0 22.4 23.6 24.2 24.6 250 18.9 22.5 26.2 28.0 29.5 30.2 30.8 300 22.6 26.9 31.3 33.5 35.3 36.1 36.9 350 27.0 32.2 37.4 40.0 42.1 43.1 44.0 400 30.4 36.2 42.1 45.0 47.4 48.5 49.5 450 34.0 40.5 47.2 50.4 53.1 54.3 55.4 500 37.8 45.0 52.4 56.0 59.0 60.4 61.6 NEW NEW NEW EKEXVA Class On-coil air temperature [°C] 10.0 16.0 18.0 20.0 21.0 22.0 24.0 kW kW kW kW kW kW kW 50 6.6 6.6 6.6 6.3 6.1 5.9 5.5 63 8.4 8.4 8.4 8.0 7.7 7.5 7.0 80 10.5 10.5 10.5 10.0 9.7 9.4 8.7 100 13.1 13.1 13.1 12.5 12.1 11.7 10.9 125 16.8 16.8 16.8 16.0 15.5 15.0 13.9 140 18.9 18.9 18.9 18.0 17.4 16.8 15.7 200 26.2 26.2 26.2 25.0 24.2 23.4 21.8 250 33.1 33.1 33.1 31.5 30.5 29.5 27.5 300 39.4 39.4 39.4 37.5 36.3 35.1 32.7 350 47.2 47.2 47.2 45.0 43.6 42.1 39.2 400 52.4 52.4 52.4 50.0 48.4 46.8 43.6 450 59.2 59.2 59.2 56.5 54.7 52.9 49.3 500 66.0 66.0 66.0 63.0 61.0 59.0 54.9 NEW NEW NEW EKEXVA Class Allowed heat exchanger capacity (kW) Allowed heat exchanger volume (dm3)* Minimum Nominal Maximum Minimum Maximum General Limits (65%<CR<75%) Only for pair and multi layout Maximum 50 5.6 6.3 7.0 0.95 1.09 1.65 63 7.1 8.0 8.8 1.02 1.18 2.08 80 8.9 10.0 11.1 1.42 1.64 2.64 100 11.2 12.5 14.7 1.51 1.74 3.30 125 14.8 16.0 17.3 1.98 2.29 4.12 140 17.4 18.0 23.6 2.54 2.94 4.62 200 23.7 25.0 27.7 3.02 3.49 6.60 250 27.8 31.5 34.7 3.97 4.58 8.25 300 34.8 37.5 41.5 4.53 5.23 9.9 350 41.6 45.0 49.5 5.48 6.32 11.55 400 49.6 50.0 55.7 6.04 6.97 13.2 450 55.8 56.5 62.4 6.99 8.07 14.85 500 62.5 63.0 69.3 7.55 8.72 16.5 NEW NEW NEW Saturated evaporating temperature: +6°C Air temperature: +27°C DB / +19°C WB * Applicable when connected to VRV outdoor units. For the corresponding DX coil limitations when the DX coil is connected to ERA units, please refer to the table on page 7. Saturated evaporating temperature: +46°C Air temperature: +20°C DB * Applicable when connected to VRV outdoor units. For the corresponding DX coil limitations when the DX coil is connected to ERA units, please refer to the table on page 7. J Define the required heating/cooling load of your project J Define 3rd party AHU heat exchanger capacity J Use the Xpress selection software or the below table to select the correct expansion valve kit J The 3rd party AHU design should respect the allowed heat exchanger volume J Xpress selection software will select the correct outdoor unit at the design ambient temperatures. J Define the required heating/cooling load of your project J Use the Xpress selection software or the below table to select the correct expansion valve, following the procedure used as for standard VRV indoor units J The 3rd party AHU design should respect the allowed heat exchanger (DX coil) volume limitations which in are in place for VRV (above on this page) and ERA (page 7) J Xpress selection software will select the correct outdoor unit at the design ambient temperatures Selection of the expansion valve kit – Fresh air application Cooling Cooling Heating Heating
12 The present publication is drawn up by way of information only and does not constitute an offer binding upon Daikin Europe N.V. Daikin Europe N.V. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content and the products and services presented therein. Specifications are subject to change without prior notice. Daikin Europe N.V. explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or interpretation of this publication. All content is copyrighted by Daikin Europe N.V. Printed on non-chlorinated paper. Daikin Europe N.V. Naamloze Vennootschap Zandvoordestraat 300 · 8400 Oostende · Belgium · www.daikin.eu · BE 0412 120 336 · RPR Oostende (Publisher) ECPEN24-257 07/24 Daikin, your partner in decarbonising your building How will Daikin enable you to lower your carbon footprint? J We continuously develop products with lower CO₂ footprints by using lower GWP refrigerants such as R-32 J We reuse materials where possible, even refrigerants through the LOOP by Daikin programme aimed at reusing available resources and fully supporting the EU circular economy J We maximise real life seasonal efficiencies, delivered in a transparent and trustworthy way J Our team of experts goes beyond product support to reach your green objectives by providing in-depth knowledge in the use of EPDs, EPDB legislation and green building schemes such as BREEAM, LEED, WELL, etc. J We provide support to continuously monitor our systems, ensuring they operate as intended, keeping running costs low and maximising uptime throughout the entire building life cycle J We help customers make the right choice by offering easy to use tools to select the best solutions for their residential, commercial or industrial building Let’s act now to decarbonise buildings, creating a healthy environment for generations to come. Contact us here: https://www.daikin.eu/en_us/about/environmental-responsibility/epd.html We’re there for you! Every building requires a different solution to match its unique properties. That’s why it is important to have an HVAC-R partner with expert knowledge and a product portfolio designed to achieve your objectives while staying within budget.
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