ERQ (PAIR) AND VRV ® AIR HANDLING APPLICATIONS For small to large commercial spaces Daikin offers a range of R-410A inverter condensing units for use in conjunction with air handling units. In situations where Daikin commercial range ventilation units cannot satisfy the ventilation requirement due to building constraints (large atriums, banquet halls etc), air handling units represent the ideal solution. Air handling units provide large fresh air volumes (> 1,000 m3/h) and high ESPs enabling the use of extensive ductwork runs. For more information on Daikin air handling units refer to the air handling unit catalogue. BENEFITS OF ERQ AND VRV® AIR HANDLING APPLICATIONS Outside air = 10°C Fresh air supplied at 21°C. The temperature difference with the outdoor air is heated up for free by heat recovery via A/C system HIGH EFFICIENCY Daikin heat pumps are renowned for their high energy efficiency with COPs up to 4.56 in heating1. The VRV® range offers both heat pump and heat recovery units with part load efficiencies as high as 9.02. Integrating the AHU with a heat recovery system is highly effective since an office system can frequently be in cooling mode while the outdoor air is too cold to be brought inside in an unconditioned state. In this case heat from the offices is merely transferred to heat up the cold incoming fresh air. In the absence of an AHU this ‘free heating’ the incoming fresh air would not be possible. 1 ERQ100AV1 heat pump 2 REYQ8P8 50% cooling – 50% heating load. Conditions: outdoor temperature 11°CDB, indoor temperature 18°CWB, 22°CDB Indoor temperature 22°C, needs cooling because of solar radiation. The excessive heat can be transferred to the AHU HIGH COMFORT LEVELS Daikin ERQ and VRV® units respond rapidly to fluctuations in supply air temperature, resulting in a steady indoor temperature and resultant high comfort levels for the end user. EASY DESIGN AND INSTALLATION The system is easy to design and install since no additional water systems such as boilers, tanks and gas connections etc are required. This also reduces the total system cost. TOTAL SOLUTION CONCEPT Integrating an air handling unit into the total building climate system enables both design and installation procedures to based on a single common technology. This simplifies project follow-up, installation, commissioning and maintenance since only one party is involved. 31 WHICH SYSTEM OFFERS ME THE BEST SOLUTION? In order to maximise combination potential, Daikin offers ‘pair’ and ‘multi’ combination plus several expansion kits and control systems. Control box and expansion valve kits are required for each combination with an air handling unit. Both option kits are designed for indoor and outdoor installation and can be wall mounted. I ONLY NEED A CONNECTION TO AN AIR HANDLING UNIT Outdoor unit combined with indoor units Expansion valve kit Air handling unit A solution for your shop, warehouse, showroom or office. Control box ERQ heat pump › › › › › › ERQ Inverter controlled units Large capacity range (from 100 to 250 class) Heat pump R-410A Flexible control possibilities Wide range of expansion valve kits available System Type Cooling capacity (kW) Heating capacity (kW) ERQ-AV1 Air-cooled ERQ-AW1 4 5 6 8 10 11.2 14.0 15.5 22.4 28.0 12.5 16.0 18.0 25.0 31.5 I NEED AN AIR HANDLING UNIT AND HEATING, AND/OR COOLING Air handling unit Control box Expansion valve kit VRV® Outdoor unit Integrate your air handling unit in a Total solution for your shop or office building. VRV® heat recovery / heat pump › › › › › 1 2 Inverter controlled units Integrates in all VRV® heat recovery and heat pump systems up to 54 HP Provides virtually free heating for the air handling unit via recovered heat from indoor units in cooling1 Control of air temperature via standard Daikin wired remote control Large range of expansion valve kits available In case of connection to a VRV® heat recovery outdoor unit For more information on VRV® units refer to the VRV® catalogue System Type Cooling capacity (kW) Heating capacity (kW) Heat recovery Air-cooled VRV® Heat pump Heat recovery Water-cooled VRV® Heat pump 32 4 5 6 8 VRV® Indoor unit connected to the same system 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 11.2 14.0 15.5 22.4 28.0 33.5 40.0 45.0 49.0 55.9 61.5 67.0 71.4 77.0 82.5 89.0 94.0 98.0 105.0 111.0 116.0 120.0 126.0 132.0 138.0 143.0 147.0 12.5 16.0 18.0 25.0 31.5 37.5 45.0 50.0 56.5 62.5 69.0 75.0 81.5 88.0 94.0 102.0 107.0 113.0 119.0 126.0 132.0 138.0 145.0 151.0 158.0 163.0 170.0 SYSTEM OVERVIEW Pair application: ERQ Expansion valve kit: EKEXV Air handling unit F1, F2 communication Control box: EKEQDCB: Control Z EKEQFCB: Control X,Y DDC controller (field supplied) Control X Multi application: VRV® EKEXV-kit Air handling unit Control box: EKEQMCB Control Z Daikin communication wire (F1, F2 communication) Other communication wire Liquid pipe Gas pipe 33 CONTROL POSSIBILITIES In order to maximise installation flexibility, 3 types of control systems are offered: POSSIBILITY X (TD/TR CONTROL): Air temperature control via an external DDC controller (field supplied) Room temperature is controlled as a function of the air handling unit suction or discharge air (customer selection). The DDC controller is translating the temperature difference between set point and air suction temperature (or air discharge temperature or room temperature) into a reference voltage (0-10V) which is transferred to the Daikin control box (EKEQFCBA). This reference voltage will be used as the main input value for the compressor frequency control. Ts DDC POSSIBILITY Y (TE/TC CONTROL): Daikin control box: EKEQFCB Room Te AHU TR A fixed target evaporating temperature of between 3°C and 8°C can be set by the customer. In this case, room temperature is only indirectly controlled. The cooling load is determined from the actual evaporating temperature (i.e. load to the heat exchanger). A Daikin wired remote controller (BRC1D52 or BRC1E51A - optional) can be connected for error indication. POSSIBILITY Z (TD/TR CONTROL): Td TR Ts By fixed evaporating temperature Te AHU Daikin control box: EKEQFCB Td Room BRC1D52 BRC1E51A ON / OFF KRP4A51 Using Daikin wired remote controller (BRC1D52 or BRC1E51A - optional) Set point can be fixed via standard Daikin wired remote controller. Remote ON/OFF can be achieved by an optional adapter KRP4A51. No external DDC controller should be connected. The cooling load is determined from the air suction temperature and set point on the Daikin controller. Ts Td Tr = Air suction temperature = Air discharge temperature = Room temperature OPTION KIT Possibility x Possibility y Possibility z Daikin control box: EKEQDCB EKEQMCB Te = Evaporating temperature AHU = Air Handling Unit DDC = Digital Display Controller FEATURES Field supplied DDC controller is required Temperature control using air suction or air discharge temperature EKEQFCB EKEQDCB EKEQMCB* * EKEQMCB (for ’multi’ application) 34 Ts Using fixed evaporating temperature, no set point can be set using remote controller Using Daikin wired remote controller BRC1D52 or BRC1E51A Temperature control using air suction temperature Te Td AHU TR Room BRC1D52 BRC1E51A 35 SELECTION OF AIR HANDLING UNITS PAIR APPLICATION Step 1: Select required capacity of AHU Based on the required capacity of the AHU please select the expansion valve Step 1 3 Allowed heat exchanger volume (dm ) Allowed heat exchanger capacity in coolong (kW) Allowed heat exchanger capacity in heating (kW) EKEXV class Minimum Maximum Minimum Standard Maximum Minimum Standard 63 1.66 2.08 6.3 7.1 7.8 7.1 8.0 Maximum 8.8 80 2.09 2.64 7.9 9.0 9.9 8.9 10.0 11.1 100 2.65 3.3 10 11.2 12.3 11.2 12.5 13.8 125 3.31 4.12 12.4 14.0 15.4 13.9 16.0 17.3 140 4.13 4.62 15.5 16.0 17.6 17.4 18.0 19.8 200 4.63 6.6 17.7 22.4 24.6 19.9 25.0 27.7 250 6.61 8.25 24.7 28.0 30.8 27.8 31.5 34.7 Heat exchanger capacity is defined under following conditions: Saturated suction temperature (SST) = 6°C, Superheat (SH) = 5K Subcool condensor (SC) = 3K Air temperature = 27°CDB/19°CWB Eg: If you need 14kW in cooling, you will require an expansion valve of 125class (EKEXV125). The heat exchanger capacity has priority over the volume of the heat exchanger and is therefore the determining factor for the selection of the expansion valve. More information on the volume can be found in the data book and service manual. Step 2: Select outdoor unit Pair combinations with ERQ outdoor units are possible based on the same principle as standard DX units. The capacity of the AHU unit is indicated by the capacity of the expansion valve and can be connected as indicated in below table. Step 2 1~ ERQ 3~ P: Class 63 Class 80 Class 100 Class 125 Class 140 Class 200 Class 250 EKEXV63 EKEXV80 EKEXV100 EKEXV125 EKEXV140 EKEXV200 EKEXV250 x or y Control EXPANSION VALVE KIT EKEQFCB EKEQDCB OUTDOOR UNIT Control z CONTROL BOX ERQ100AV1 P P P P P P - - - ERQ125AV1 P P P P P P P - - ERQ140AV1 P P - P P P P - - ERQ125AW1 P P P P P P P - - ERQ200AW1 P P - - P P P P P ERQ250AW1 P P - - - P P P P Pair, combination depending on AHU coil volume and capacity Eg: Based on above selected expansion valve, the EKEXV125 has a capacity of class 125. Therefore we can choose to connect it in pair with all outdoor units indicated in the table above with P. Step 3: Control box selection Please make your selection of the control box based on your requirements. All the different control possibilities are mentioned on page 34. More information on the selection is available in the service manual. 36 MULTI APPLICATION Step 1: Select required capacity of AHU Based on the required capacity of the AHU please select the expansion valve Step 1 EKEXV class Allowed heat exchanger volume (dm3) Allowed heat exchanger capacity in cooling (kW) Allowed heat exchanger capacity in heating (kW) Minimum Maximum Minimum Standard Maximum Minimum Standard 50 0.76 1.65 5.0 5.6 6.2 5.6 6.3 7.0 63 1.66 2.08 6.3 7.1 7.8 7.1 8.0 8.8 80 2.09 2.64 7.9 9.0 9.9 8.9 10.0 11.1 100 2.65 3.3 10 11.2 12.3 11.2 12.5 13.8 6.9 Maximum 125 3.31 4.12 12.4 14.0 15.4 13.9 16.0 17.3 140 4.13 4.62 15.5 16.0 17.6 17.4 18.0 19.8 200 4.63 6.6 17.7 22.4 24.6 19.9 25.0 27.7 250 6.61 8.25 24.7 28.0 30.8 27.8 31.5 34.7 Eg: If the required capacity of the AHU is 6.9kW in cooling, which lies between 6.3 and 7.8, the EKEXV63 can be selected. The heat exchanger capacity has priority over the volume of the heat exchanger and is therefore the determining factor for the selection of the expansion valve. More information on the volume can be found in the data book and service manual. Step 2: Select outdoor unit Multiple AHU can be connected to a VRV® system and the connection principle is similar as for ERQ. Connection of the full system can be up till 110% including at least 1 Daikin indoor unit (cassette, duct, …) The capacity index of the AHU needs to be calculated based on the indicated capacity of the selected expansion valve and the actual capacity. The AHU capacity index = capacity class (expansion valve) * ratio (actual capacity AHU / standard capacity expansion valve) Eg: AHU has a capacity requirement of 6.9kW and the selected expansion valvue is the EKEXV63 with a standard capacity of 7.1kW. So the AHU capacity = 63 * (6.9kW / 7.1kW) = 61 class In case that in the system 2 FXSQ50 class are connected, the total sum of capacity would be 61 + 2*50 = 161 class Based on the 161 class a 10 HP is required as outdoor unit. 1 For detailed specifications of VRV® outdoor units, refer to the VRV® catalogue or databooks Step 3: Control box selection EKEQMCB is the control box which is required to control the communication between the AHU and the VRV® system beside the standard communication of the Daikin DX indoor units (cassette, duct, wall…). More information on the selection is available in the service manual. 37 Air handling application (pair) ERQ SPECIFICATIONS OUTDOOR UNIT ERQ100AV1 ERQ125AV1 ERQ140AV1 ERQ125AW1 ERQ200AW1 Capacity range HP 4 5 6 5 8 10 Cooling capacity Nom. kW 11.2 (1) 14.0 (1) 15.5 (1) 14.0 (1) 22.4 (1) 28.0 (1) kW 12.5 (2) 16.0 (2) 18.0 (2) 16.0 (2) 25.0 (2) 31.5 (2) Heating capacity Nom. Capacity control Power input Cooling Min./Max. % 24/100 Cooling Nom. kW - 3.52 (1) 5.22 (1) 7.42 (1) Heating Nom. kW - 4.00 (2) 5.56 (2) 100 7.70 (2) 3.42 (1) 3.98 (1) 4.29 (1) 3.77 (1) 3.94 (2) 4.00 (2) 4.50 (2) 4.09 (2) 3.99 (1) EER 4.56 (2) COP Casing Material Dimensions Unit Weight Unit 4.15 (2) Painted galvanized steel plate HeightxWidthxDepth mm Painted galvanized steel plate 1,345x900x320 1,680x635x765 120 159 kg Type m³/min m³/min 102 Sound power level Cooling Nom. dBA 66 67 69 72 Cooling Nom. dBA 50 51 53 54 Heating Nom. dBA 52 53 55 Sound pressure level Compressor Compressor 2 106 105 Model Type 240 Propeller Cooling Nom. Air flow rate 1,680x930x765 187 Propeller Heating Nom. Fan 95 171 95 171 185 185 78 57 58 - JT100G-VDL Inverter Hermetically sealed scroll compressor Hermetically sealed scroll compressor Model - - ON - OFF Type - - Hermetically sealed scroll Cooling Min.~ Max. °CDB -5~ 46 -5~ 43 Heating Min.~Max. °CWB -20~15.5 -20~15 Enterning air Cooling temperature on AHU Heating heat exchanger Type Min.~ Max. °CDB -14CWB~25CWB 35°CDB Min.~Max. °CWB 10CWB~27CWB 10CWB~27CWB Operation range Refrigerant R-410A Charge kg 6.2 Expansion valve (electronic type) Type l Type/OD Piping connections Gas Type/OD mm Drain Quantity/OD mm Piping length Max. m Power supply Phase/Frequency/Voltage OU - IU 1.7 Flare connection/9.52 Flare connection/15.9 Heat insulation Hz/V 8.4 Synthetic (ether) oil 1.5 mm 7.7 Electronic expansion valve Daphne FVC68D Charged volume Liquid R-410A 4.0 Control Refrigerant oil ERQ250AW1 2.1 4.3 Braze connection/9.52 Braze connection/19.1 Braze connection/15.9 Braze connection/19.1 Braze connection/22.2 3/26x3 - 55 55 Both liquid and gas pipes Both liquid and gas pipes 1N~/50/220-440 3N~/50/400 (1) Cooling: indoor temp. 27°CDB, 19°CWB; outdoor temp. 35°CDB; equivalent piping length: 7.5m (horizontal); level difference: 0m (2) Heating: indoor temp. 20°CDB; outdoor temp. 7°CDB, 6°CWB; equivalent refrigerant piping: 7.5m; level difference: 0m (3) Sound pressure level is a relative value, depending on the distance and acoustic environment. For more details, please refer to the sound level drawings. (4) Sound values are measured in a semi-anechoic room. (5) Sound pressure level is a relative value, depending on the distance and acoustic environment. For more details, please refer to the sound level drawings. Control box EKEXV INDOOR UNIT Casing Dimensions Weight Sound pressure level Operation range EKEXV50 Material Unit Unit Nom. Cooling HeightxWidthxDepth Min.~ Max. mm kg dBA EKEXV63 EKEXV80 EKEXV100 EKEXV125 Metal 401x215x78 2.9 °CDB EKEXV140 EKEXV200 EKEXV250 45 -5.0~ 46.0 (1)The sound pressure value is the maximum value measured at 10cm from the motor.(2)Minimum and maximum piping length refer to the piping between the expansion valve kit (EKEXV) and the air handling unit(3)Equivalent piping length: refer to the capacity connection ratio of the outdoor unit; depends on outdoor unit(4)Maximum installation height difference: See manual; depends on outdoor unit 38 ACCESSORIES ERQ Central drain pan Central drain plug Cool/heat selector Fixing box EKEQ Wired remote control ERQ100AV1 ERQ125AV1 ERQ140AV1 - KKPJ5F180 - EKEQFCB ERQ125AW1 ERQ200AW1 KWC26B160 KRC19-26A6 KJB111A ERQ250AW1 KWC26B280 - EKEQDCB - EKEQMCB BRC1D52 / BRC1E51A BRC1D52 / BRC1E51A* Wiring adapter for electrical appendices - KRP4A516 Remote sensor - KRCS01-1 * Cool/heat selector: required for operation. Caution for options - Do not connect the system to DIII-net devices (Intelligent Controller, Intelligent Manager, LONWORKS interface, BACnet interface…). This could result in malfunction or breakdown of the total system. Only use the ERQ, EKEQ, EKEXV in combination with an air handling unit. Do not connect this system to other indoor units. 39 The present leaflet 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 leaflet 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 leaflet. All content is copyrighted by Daikin Europe N.V. Daikin products are distributed by: FSC ECPEN11-203 Naamloze Vennootschap - Zandvoordestraat 300, B-8400 Oostende - Belgium - www.daikin.eu - BE 0412 120 336 - RPR Oostende ECPEN11-203 • 250 • 12/10 • Copyright Daikin The present publication supersedes ECPEN10-203. Printed on non-chlorinated paper. Prepared by La Movida, Belgium Resp. Ed.: Daikin Europe N.V., Zandvoordestraat 300, B-8400 Oostende Daikin’s unique position as a manufacturer of air conditioning equipment, compressors and refrigerants has led to its close involvement in environmental issues. For several years Daikin has had the intention to become a leader in the provision of products that have limited impact on the environment. This challenge demands the eco design and development of a wide range of products and an energy management system, resulting in energy conservation and a reduction of waste.