INSTALLATION MANUAL
Contents
1. 12 probability of occurrence 81 Flaring guidelis sas tensor Rete etl 13 9 2 Brazing guidelllias 13 DANGEH 9 3 1910 corn s Ec 13 Indicates an imminently hazardous situation which if not Cautions on handling the stop valve 13 avoided will result in death or serious injury Opening closing the stop valve 14 Cautions on handling the stem cap 14 WARNING Cautions on handling the service port ssnin 14 Indicates a potentially hazardous situation which if not 9 4 Tightening torques avoided could result in death or serious injury 10 Refrigeraht piping ont rentre rrr treten 10 1 Preventing foreign objects from entering 14 CAUTION 10 2 Precautions when connecting field piping and Indicates a potentially hazardous situation which if not ps avoided may result in minor or moderate injury It may also 10 3 Cautions for necessity of a trap 215 be used to alert against unsafe practices 11 Leak test and vacuum drying 11 1 General 15 NOTICE Indicates situations that may result in equipment or 3 Leak test 11 4 Vacuum erdt 16 propenhy damage accidents 12 Charging soccer coro 16 INFORMATION 12 1 Important information regarding the refrigerant used This symbol identifies useful tips or add2. lt gt 01 arl lt g gt 01 oup lt 2 gt 89197 yieuneq lt Puido ey Ploeluawnyop z eupoz Nysod lt y gt ep wos ZL 0130 1013410 1 y 010 11372 0000 muo 20 Agisod lt g gt pun y 20 9 gt 1 995 lt g gt 10 quuezs 2 z e lt gt lt gt opuooes lt g gt ep lt gt eyotrue 0 Buip1oooe lt gt 8 OLLY 24 sejejejbeu e eyozebi lt g gt z e ugldeje v z e sezKBelfoy ol lt g gt v uomeuuoju ajuawengisod vr eu ojeeuijep 90 lt g gt Aq Ajenysod pebpnf pue y yno 195 se 10 annoadsal ajajuawepuawe no gr Wwexaeduou 09 60 gy 2 121981002 8 60 weymesdod jwAzstatuzod 2 1 80 iwelualmoue sod 2 2 0 80 amp amp sz 2 ylese Sopow se 0 BAUIOUOUIOdL AnoX2
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4. 9 2 Brazing guidelines Make sure to blow through with nitrogen when brazing Blowing through with nitrogen prevents the creation of large quantities of oxidized film on the inside of the piping An oxidized film adversely affects valves and compressors in the refrigerating system and prevents proper operation The nitrogen pressure should be set to 0 02 MPa i e just enough so it can be felt on the skin with a pressure reducing valve Refrigerant piping Part to be brazed Taping Manual valve Pressure reducing valve Nitrogen Do not use anti oxidants when brazing the pipe joints Residue can clog pipes and break equipment Do not use flux when brazing copper to copper refrigerant piping Use phosphor copper brazing filler alloy BCuP which does not require flux Flux has an extremely harmful influence on refrigerant piping systems For instance if chlorine based flux is used it will cause pipe corrosion or in particular if the flux contains fluorine it will deteriorate the refrigerant oil 9 3 Stop valve operation Cautions on handling the stop valve sure to keep both stop valves open during operation Not recommended but in case of emergency B eb id nnd the name of each part required in Should you be forced to connect the piping without a torque Ine Stop vave wrench follow the following installation method 1 Tighten th
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8. Do connect wires of different gauge to the same power supply terminal Looseness in the connection may cause overheating When connecting wires of the same gauge connect them according to the below figure e eem e X Use the correct screwdriver to tighten the terminal screws Small screwdrivers can damage the screw head and prevent appropriate tightening Over tightening the terminal screws can damage the screws See the table below for tightening torques for the terminal Screws Tightening torque M4 X1M 1 2 1 8 5 1 2 0 3 0 5 EARTH 3 0 4 0 Refer to the installation manual attached to the indoor unit for wiring of indoor unit etc Attach an earth leakage circuit breaker and fuse to the power supply line See figure 6 1 Earth leakage circuit breaker 2 Fuse 3 Remote controller n wiring make certain that prescribed wires are used carry out complete connections and fix the wires so that outside forces are not applied to the terminals 14 4 Electrical characteristics ERHQ ERLQ V3 ERHQ W1 ERLQ W1 Phase and frequency 1 50 2 3N 50 Hz Voltage 230 V 400 V Recommended field fee 32A 40A 20A Minimum circuit amps 28 2 34 2 13 5 16 3 Wire type of wiring Minimum cable section of 2 5 mm between the units and applicable for 230 V a Stated values are maximum values see electrical d
9. EEK HN N Sar gt Terminal cover Indoor and outdoor field piping Corking etc Insulation material Bolts Be careful with pipe bolt and outer panel connections gt 10 3 Cautions for necessity of a trap To avoid the risk of oil held inside the riser piping flowing back into the compressor when stopped and causing liquid compression phenomenon or cases of deterioration of oil return it will be necessary to provide a trap at each difference in height of 10 m in the riser gas piping installation spacing See figure 4 Outdoor unit Indoor unit Gas piping Liquid piping Oiltrap Install trap at each difference in height of 10 m W trap is not necessary when the outdoor unit is installed at higher position than the indoor unit TmOOU 11 LEAK TEST AND VACUUM DRYING When all piping work is complete and the outdoor unit is connected to the indoor unit it is necessary to check for any leakages in the refrigerant piping to perform vacuum drying to remove all moisture in the refrigerant piping If there is a possibility of moisture being present in the refrigerant piping for example rainwater may have entered the piping first carry out the vacuum drying procedure below until all moisture has been removed 11 1 General guidelines All piping inside
10. 4 Overview of unit nu 441 Opening a 5 The original instructions ee English All other languages 4 2 COMPOMGMES 5 are translations of the original instructions 4 3 Functional diagram ERHQ_V3 W1 6 4 4 Functional diagram ERLQ_V3 W1 8 A CAREFULLY READ THESE INSTRUCTIONS BEFORE 5 Selecting installation site INSTALLATION THEY WILL TELL YOU HOW INSTALL Ed General 9 AND HOW TO CONFIGURE THE UNIT PROPERLY 5 2 Selecting a location in cold climates 10 KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE 6 Precautiens or AnstallatiDpi eri ve Per REFERENCE CREME IU IS rl PERRO 6 2 Drain work only for ERHQ see 6 3 Installation method for prevention of falling 11 1 DEFINITIONS 7 Installation servicing Space etee tbe trit beers 11 8 Refrigerant pipe size and allowable pipe length 12 8 1 Selection of piping material retenta 12 1 1 Meaning of warnings and symbols 8 2 Refrigerant pipe size 8 3 Allowable pipe length and height 12 Warnings in this manual are classified according to their severity and 9 Precautions on refrigerant
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12. P DAIKIN altherma INSTALLATION MANUAL Outdoor unit for air to water heat pump ERHQ011BAV3 ERHQ014BAV3 ERHQ016BAV3 ERHQ011BAW1 ERHQ014BAW1 ERHQ016BAW1 ERLQ011CAV3 ERLQ014CAV3 ERLQ016CAV3 ERLQ011CAW1 ERLQ014CAW1 ERLQ016CAW1 gt 100 gt 100 gt 100 gt 100 gt 100 gt 150 gt 150 gt 150 O lt L1 lt VoH 21000 21000 21000 1 ni 4 g 959 15 0 00 8 00 1eensepioo puez QU He 2 BENE JeBeue N AN 3dOUn d 7 euielq ueor amp NDIIVG 146 iGipjupuspebep yero nuno lt g gt eub lt gt 4244490 n ployusy 9 opeaynie S9St c00W3 vnO LSevcOc euiseyurueg 9 196 epev JON Sz lt 9 gt elipeeurues yeneysen Biel lt g gt pnyepiny lt gt lt g gt oues lt g gt ye yelepinn y 1 uos xieuleg 0l opienoe ep lt g gt 100 VSM lt gt uluagpanso s ef y sipueuunyop pnyepieu uo SMW 02 ouafualioo ey af oyey euawodey gt
13. V3 1 230 V 50 Hz W1 3N 400 V 50 Hz Series Capacity class kW Outdoor unit on R410A H low water temperature ambient zone 0 C 10 C L low water temperature ambient zone 10 C 20 C Split outdoor pair heatpump ERHQ011 016BAV3 W1 ERLQ011 016CAV34W1 DAIKIN Installation manual Outdoor unit for air to water heat pump 4 4PW57794 1A 05 2011 Possible options ERLQ Q ERHQ Drain socket Bottom plate heater Standard Optional kit Not applicable Optional kit a Factory mounted b Combination of both options is prohibited c No drain socket available for ERLQ Demand pcb KRP58M51 Snow cover ERLQ EK016SNC a This demand pcb option is only applicable for the setting of demand running function See installation manual of KRP58M51 Optional bottom plate heater only applicable for ERHQ EKBPHT16Y EKBPHTH16A EKHBH X016AA AB Possible Not allowed EKHBH X016BA Possible Possible EKHBH X016BB Possible Possible 3 6 Handling As shown in the figure below slowly move the unit by grabbing the left and right grips Position your hands on the corner instead of grabbing the air inlet to avoid deforming the casing CAUTION To avoid injury do not touch the air inlet or aluminium fins of the unit 4 OVERVIEW OF UNIT 4 1 Opening the unit Lr 9 DANGER ELECTRICAL SHOCK
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15. 39 ALIINHO3NO9 30 NOILVUV 1940 39 ERHQO11BAV3 W1 ERLQO11CAV3 W1 ERHQO14BAV34W1 ERLQO14CAV3 W1 Outdoor unit for air to water heat pump Installation manual ERHQO016BAV3 W1 ERLQ016CAV3 W1 CONTENTS Page 15 Test operation PS 15 1 Pre run checks 1 Definitions 15 2 Testif fis ise secet B 1 1 Meaning of warnings and symbols m 15 3 Failure diagnosis at the moment of first installation 20 1 2 Meaning of used terms oe 16 MaintenanCe and 20 2 Safety considerations 16 1 Service precautions 5222z oc ped Godd ts 20 Warning 16 2 Service mode operation itte ttti eerta 21 Caution 17 Disposal requirements 3 cR 4 18 Unit specifications Sill 3Scope othemalal 4 18 1 Technical specifications 21 3 2 4 18 2 Electrical specifications cccccsccsssesscsscsesscsssssssssssessesssensseesseass 21 3 3 Installation sees 19 Winkie COPA 22 3 4 Model identification ie DUE QUE 3 6 Handling Thank you for purchasing this product
16. 4 Discharge air INFORMATION If the installation of a canopy is not possible the optional snow cover EKO16SNC shall be installed For ERLQ only Follow the procedure as described in figure 7 for 6 1 Foundation work Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installation In accordance with the foundation drawing in the figure fix the unit securely by means of the foundation bolts Prepare 4 sets of M12 foundation bolts nuts and washers each which are field supplied It is best to screw in the foundation bolts until their length are 20 mm from the foundation surface ERHQ 620___ 140 ERLQ A 140 8 620 140 2 QI Ae 8 B OQ ig ee B E i d e g 35 4 60 182 154 159 A Discharge side B Bottom view mm C Drain hole 6 2 Drain work only for ERHQ modifying the position of the air thermistor R1T The thermistor Check in the combination table under Possible options on page 5 fixture is delivered in the accessory bag whether drain work is allowed In case drain work on your unit is allowed and the installation site requires drain work then follow the INFORMATION guidelines below Spare thermistor fixing plate is delivered in the Wi Drain kits for drainage are available as option accessory bag Wi drai
17. Calculating the additional refrigerant charge for ERLQ models on page 17 In case re charge is required refer to 12 5 Complete recharging on page 17 12 2 Precautions and general guidelines When servicing the unit requires the refrigerant system to be opened treatment and evacuation of refrigerant must be done in accordance with applicable legislation Refrigerant can not be charged until field wiring has been completed Refrigerant may only be charged after performing the leak test and vacuum drying see 11 Leak test and vacuum drying on page 15 CAUTION When charging a system care shall be taken that its maximum permissible charge is never exceeded in view of the danger of liquid hammer WARNING Refrigerant cylinders shall be opened slowly Always use protective gloves and protect your eyes when charging refrigerant DANGER When the power is on please close the front panel when leaving the unit unattended B Charging with an unsuitable substance may cause explosions and accidents so always ensure that the appropriate refrigerant R410A is charged This unit requires additional charging of refrigerant according to Contains fluorinated greenhouse gases covered the Kyoto Protocol 14 length of refrigerant piping connected at the site R410A kg Make sure to charge the refrigerant in liquid state to the liquid pipe Since R410A is a mixed refri
18. Figure Field pipes in 4 directions Drill Centre area around knock out hole Knock out hole Slit Connecting pipe Bottom frame Front plate Pipe outlet plate Screw front plate Pipe outlet plate screw Forward Backward Sideways Downward DOAOAWFOCOHANOUBWODND Cutting out the two slits makes it possible to install as shown in the figure Field pipes in 4 directions Use a metal saw to cut out the slits To install the connecting pipe to the unit in a downward direction make a knock out hole by penetrating the centre area around the knock out hole using a 6 mm drill 4x See figure Field pipes in 4 directions WB After knocking out the knock out hole it is recommended to apply repair paint to the edge and the surrounding end surfaces to prevent rusting B When passing electrical wiring through the knock out holes remove any burrs from the knock out holes and wrap the wiring with protective tape to prevent damage 1 2 3 1 Knock out hole 2 Burr 3 Packing materials 10 1 Preventing foreign objects from entering Plug the pipe through holes with putty or insulating material procured locally to stop up all gaps as shown in the figure 1 Putty or insulating material produced locally If there is any possibility that small animals enter the system through the knock out holes plug the holes with packing materials field supplied Insects or small animals enter
19. performed properly from these ports Outdoor units have 1 port on the piping It is between the heat exchanger and the 4 way valve In case complete recharging is required after a leak etc refer to the information below to determine the necessary amount of refrigerant For ERHQ only Table 3 Total charging amount unit kg Refrigerant piping length 3 10m 10 20 20 30m 30 40m 40 50m 50 60m 60 75m 27 3 2 3 7 4 2 47 5 2 5 7 wi 2 95 3 45 3 95 4 45 4 95 5 45 5 95 For ERLQ only Total charging amount lt unit kg gt Charge of refrigerant kg depends on total liquid piping length Total refrigerant charge 3 4 kg total length m of liquid piping 10m x 0 054 Remark Factory refrigerant charge is 3 4 kg 13 PUMP DOWN OPERATION This unit is equipped with an automatic pump down operation which will collect all refrigerant from the field piping and indoor unit in the outdoor unit To protect the environment make sure to perform the following pump down operation when relocating or disposing of the unit INFORMATION For more details refer to the applicable service manual WARNING The outdoor unit is equipped with a low pressure switch or a low pressure sensor to protect the compressor by switching it off Never short circuit the low pressure switch during pump down operation NOTICE Before pumpdown is activated be sure that the water temperature
20. the height of the lot of dust is created the unit must be covered foundation should be maximum 150 mm Do not place any objects or equipment on top of the unit top Ifyou install the unit on a frame please install a waterproof plate plate within 150 mm of the underside of the unit in order to prevent the not climb sit or stand on top of the unit invasion of water from the lower direction sure that sufficient precautions are taken in accordance When installing the unit in a place frequently exposed to snow with applicable legislation in case of refrigerant leakage pay special attention to elevate the foundation as high as W When installing the unit in a place exposed to strong wind pay possible special attention to the following f you install the unit on a building frame Strong winds of 5 m sec or more blowing against the outdoor please install a waterproof plate field unit s air outlet causes short circuit suction of discharge air supply within 150 mm of the underside of and this may have the following consequences the unit or use a drain kit refer to Deterioration of the operational capacity combination table in Possible options 2 Frequent frost acceleration in heating operation page 5 in order to avoid the drainwater 4 Disruption of operation due to rise of high pressure dripping See figure When a strong wind blows continuously on the face of the B sure that the unit is installe
21. ERLQ to prevent exposure to wind or that the heat exchanger coil is affected by snow Top side obstacle VR B In case of stacked installation for ERHQ only 1 n case obstacles exist in front of the outlet side 2 Incase obstacles exist in front of the air inlet Do not stack more than one unit About 100 mm is required as the dimension for laying the upper outdoor unit s drain pipe Get the portion A sealed so that air from the outlet does not bypass C In case of multiple row installation for roof top use etc for ERHQ only 1 Incase of installing one unit per row 2 n case of installing multiple units 2 units or more in lateral connection per row Relation of dimensions of H A and L are shown in the table below L 0 lt 1 lt 1 2 250 LsH 1 2H lt L 300 H lt L Installation not allowed Installation manual 11 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 8 REFRIGERANT PIPE SIZE AND ALLOWABLE PIPE LENGTH A DANGER WB Piping and other pressure containing parts shall comply with the applicable legislation and shall be suitable for refrigerant Use phosphoric deoxidised seamless copper for refrigerant H Installation shall be done by an installer the choice of materials and installation shall comply with applicable legislation In Europe the EN378 is the application s
22. See 2 Safety considerations on page 2 A DANGER DO NOT TOUCH PIPING AND INTERNAL A PARTS See 2 Safety considerations on page 2 4 2 Main components V3 RSS SR Installation manual 5 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 Heat exchanger Fan motor Reactor coil s 4 way valve Noise filter pcb only for V3 models Service pcb only for V3 models Pressure sensor Electronic expansion valve injection only for ERLQ 9 Main pcb inverter and control pcb only for V3 models 10 High pressure switch 11 Accumulator 12 Terminal communication and power supply 13 Gas stop valve 14 Liquid stop valve 15 Electronic expansion valve main 16 Solenoid valve hot gas pass only for ERLQ 17 Compressor 18 Service port 19 Control pcb and noise filter pcb only for W1 models 20 Inverter pcb only for W1 models wi ONOoahWND V3 2 ee ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 DAIKIN Installation manual Outdoor unit for air to water heat pump 6 4PW57794 1A 05 2011 mh mb md RUN Indoor unit 16 Outdoor unit Heat exchanger Service port 5 16 Compressor Accumulator Pressure sensor High pressure switch 4 way valve Filter Electronic expansion valve Field piping 29 5 Field piping 1
23. WIRING WORK A WARNING All wiring must be performed an authorized electrician components procured on the site and all electric construction shall comply with the applicable legislation DANGER HIGH VOLTAGE To avoid electrical shock make sure to disconnect the power supply 1 minute or more before servicing the electrical parts Even after 1 minute always measure the voltage at the terminals of main circuit capacitors or electrical parts and before touching make sure that those voltages are 50 V DC or less NOTICE To persons in charge of electrical wiring work Do not operate the unit until the refrigerant piping is complete Running it before the piping is ready will break the compressor 14 1 Precautions on electrical wiring work DANGER Before obtaining access to terminal devices all supply circuits must be interrupted sure to install an earth leakage circuit breaker in accordance with applicable legislation Failure to do so may cause electrical shock B Use only copper wires A main switch or other means for disconnection having a contact separation in all poles must be incorporated in the fixed wiring in accordance with applicable legislation Do not turn on the main switch until all the wiring is completed Never squeeze bundled cables into a unit Fix cables so that cables do not make contact with the pipes especially on high pressu
24. a Switching power supply Expansion valve injection for ERLQ only QUID iners Earth leakage circuit breaker field supply Solenoid valve 4 way valve 1 Resistor Solenoid valve for W1 models only ERHQ Thermistor air Solenoid valve hot gas pass for ERLQ only Thermistor discharge 2105290 aio Noise filter RST Thermistor suction pipe ZIP ZAP ocn Noise filter PRAM Thermistor heat exchanger ERHQ011 016BAV3 W1 ERLQO11 016CAV3 W1 DAIKIN Installation manual Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 22 V3 type W1 type 1 50 Hz 3N 50 Hz 230V 400V L N E 4PW57794 1 0000000Y Copyright 2010 Daikin DAIKIN EUROPE N V Zandvoordestraat 300 B 8400 Oostende Belgium 4PW57794 1A 05 2011
25. and water volume is sufficiently high Pumpdown is done in cooling mode See installation manual of the indoor unit for more details 1 Turn on the main power supply switch 2 Make sure the liquid stop valve and the gas stop valve are open see 9 3 Stop valve operation on page 13 3 Press the pump down button BS4 on the PCB of the outdoor unit for at least 8 seconds 4 The compressor and outdoor unit fan will start operating automatically Installation manual 17 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 Once operation stops after 3 to 5 minutes close the liquid stop valve and the gas stop valve The pump down operation is now finished The remote controller As this unit is equipped with an inverter installing a phase advancing capacitor not only will deteriorate power factor improvement effect but also may cause capacitor abnormal heating accident due to high frequency waves Therefore never may display U4 and the indoor pump may continue operating This is not a malfunction Even when the ON button on the remote controller is pressed the unit will not start to operate To restart operation of the unit turn off the main power supply switch and turn it on again 7 Turn off the main power supply switch WARNING Make sure to re open both stop valves before restarting operation of the unit 14 ELECTRICAL
26. metal part by hand such as the stop valve in order to eliminate static electricity and to protect the PCB before performing service gt CAUTION Do not rinse the outdoor unit This may cause electric shocks or fire gt DANGER DO NOT TOUCH PIPING AND INTERNAL PARTS See 2 Safety considerations on page 2 Do not touch live parts for 10 minutes after the power supply is turned off because of high voltage risk Make sure that the power supply is turned off before performing the maintenance work The heater of the compressor may operate even in stop mode Please note that some sections of the electric component box are extremely hot Make sure you do not touch a conductive section After measuring the residual voltage pull out the outdoor fan connector The outdoor fan may rotate due to strong backblow wind causing the capacitor to charge This may result in an electric shock After maintenance make sure the outdoor fan connector is connected again Otherwise the unit may break down ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 DAIKIN Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 Installation manual 20 16 2 Service mode operation Refer to the service manual to carry out any service mode operation 17 DISPOSAL REQUIREMENTS Dismantling of the unit treatment of the refrigerant of oil and of other parts must be done in accordance with applicable legislatio
27. 5 9 Stop valve with service port 5 16 Crank case heater Fan motor Injection valve Capillary tube Thermistor air Thermistor discharge Thermistor suction Thermistor heat exchanger Thermistor heat exchanger middle Thermistor liquid Heating Cooling Installation manual 7 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 4 4 Functional diagram ERLQ_V3 W1 Indoor unit EKHBH X016 Outdoor unit Heat exchanger Service port 5 16 Compressor Accumulator Pressure sensor High pressure switch 4 way valve Filter Electronic expansion valve main Field piping 29 5 Field piping 015 9 Stop valve with service port 5 16 Crank case heater Fan motor Electronic expansion valve injection Capillary tube Solenoid valve hot gas pass Thermistor air Thermistor discharge Thermistor Suction Thermistor heat exchanger Thermistor heat exchanger middle Thermistor liquid Heating Cooling ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 DAIKIN Installation manual 8 5 SELECTING INSTALLATION SITE Install baffle plate on the air suction side of the outdoor unit and set the outlet side at a right angle to the direction of the wind 5 1 General WA
28. RNING sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals Small animals making contact with electrical parts can cause malfunctions smoke or fire Please instruct the customer to keep the area around the unit clean Select an installation site where the following conditions are satisfied and that meets with your customer s approval Places which are well ventilated Places where the unit does not bother next door neighbours Safe places which can withstand the unit s weight and vibration and where the unit can be installed level Places where there is no possibility of flammable gas or product leak The equipment is not intended for use in a potentially explosive atmosphere Places where servicing space can be well ensured Places where the indoor and outdoor units piping and wiring lengths come within the allowable ranges 3 Discharge air Places where water leaking from the unit cannot cause damage to the location e g in case of a blocked drain pipe Prepare a water drainage channel around the foundation to Places where the rain can be avoided as much as possible drain waste water from around the unit not install the unit in places often used as work place water drainage of the unit is not easy please build up the In case of construction works e g grinding works where a unit on a foundation of concrete blocks etc
29. ata of combination with indoor unit for exact values CAUTION Select all cables and wire sizes in accordance with applicable legislation CAUTION After finishing the electrical work confirm that each electric part and terminal inside the electric part box is connected securely ERHQ models For V3 models Equipment complying with EN IEC 61000 3 120 ERLQ models For V3 models This equipment complies with respectively EN IEC 61000 3 11 provided that the system impedance Zsys is less than or equal to Zmax and EN IEC 61000 3 12 provided that the short circuit power Ssc is greater than or equal to the minimum Sg value at the interface point between the user s supply and the public system It is the responsibility of the installer or user of the equipment to ensure by consultation with the distribution network operator if necessary that the equipment is connected only to a supply with respectively impedance Zsys less than or equal to Zmax and short circuit power Sg greater than or equal to the minimum Ss value ERLQ011CAV3 0 22 525 kVA ERLQ014CAV3 0 22 525 kVA 016 0 22 525 W1 models Equipment complying with EN IEC 61000 3 120 The wiring diagram be found on the inside of the front plate of the unit 1 European International Technical Standard setting the limits for harmonic currents produced
30. ation period Protection method More than a month Pinch the pipe Outdoor unit Less than a month Regardless of the Pinch or tape the pipe Indoor unit Piping should be mounted so that the flare is not subjected to mechanical stress ERHQ011 016BAV3 W1 ERLQ011 016CAV34W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 DAIKIN Installation manual 12 9 1 Flaring guidelines Flares should not be re used New ones should be made in order to prevent leaks Use a pipe cutter and flare tool suitable for the refrigerant used Only use the flare nuts included with the unit Using different flare nuts may cause the refrigerant to leak Please refer to the table for flaring dimensions and tightening torques too much tightening will result in splitting the flare Flare dimensions A mm Piping size Tightening torque Nem Flare shape mm mm 09 5 33 39 12 8 13 2 015 9 63 75 19 4 19 7 When connecting the flare nut coat flare inner surface with ether oil or with ester oil and initially tighten 3 or 4 turns by hand before tightening firmly When loosening a flare nut always use two wrenches together When connecting the piping always use a spanner and torque wrench together to tighten the flare nut to prevent flare nut cracking and leaks 1 Torque wrench 2 Spanner 1 Piping union 4 Flare nut
31. by equipment connected to public low voltage systems with input current gt 16 A and lt 75 A per phase 2 European International Technical Standard setting the limits for voltage changes voltage fluctuations and flicker in public low voltage supply systems for equipment with rated current lt 75 A Installation manual 19 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 15 TEST OPERATION A DANGER Never leave the unit unattended during installation or servicing When the service panel is removed live parts can be easily touched by accident INFORMATION Note that during the first running period of the unit required power input may be higher than stated on the nameplate of the unit This phenomenon originates from the compressor that needs elapse of a 50 hours run in period before reaching smooth operation and stable power consumption NOTICE For applications with benefit kWh rate power supply The outdoor unit power supply interruption may not be longer than 2 hours to guarantee optimized startup condition for compressor See installation manual of the indoor unit for more details a For V3 L For W1 L1 L2 L3 N 15 1 checks Items to check Electrical wiring B 5 the wiring as mentioned on the wiring diagram Inter unit wiring Make sure no wiring has been forgotten and that Earth wire there are no miss
32. copper pipes or soldered parts may cause the refrigerant to leak Where there is machinery which emits electromagnetic waves Electromagnetic waves may disturb the control system and cause malfunction of the equipment Where flammable gases may leak where carbon fiber or ignitable dust is suspended in the air or where volatile flammables such as thinner or gasoline are handled Such gases may cause a fire W Where the air contains high levels of salt such as that near the ocean Where voltage fluctuates a lot such as in factories In vehicles or vessels W Where acidic or alkaline vapour is present Do not allow a child to mount on the outdoor unit or avoid placing any object on the unit Falling or tumbling may result in injury For use of units in applications with temperature alarm settings it is advised to foresee a delay of 10 minutes for signalling the alarm in case the alarm temperature is exceeded The unit may stop for several minutes during normal operation for defrosting the unit or when in thermostat stop operation Installation manual 3 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 3 BEFORE INSTALLATION INFORMATION An CA outdoor unit can be connected to an WARNING EKHBH X016 indoor unit bottom plate heater at Since maximum working pressure for ERHQ is 4 0 MPa or outdoor unit is cont
33. d level unit the fan can start rotating very fast until it breaks Refer to the figures for installation of this unit in a place where the wind direction can be foreseen Installation manual DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 9 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 5 2 Selecting a location in cold climates 6 Refer to 3 4 Model identification on page 4 PRECAUTIONS ON INSTALLATION NOTICE NOTICE When operating the outdoor unit in a low outdoor ambient temperature be sure to follow the instructions described below To prevent exposure to wind install the outdoor unit with its suction side facing the wall Never install the outdoor unit at a site where the suction side If drain holes of the outdoor unit are covered by a mounting base or by floor surface raise the unit in order to provide a free space of more than 150 mm under the outdoor unit 2150 mm may be exposed directly to wind To prevent exposure to wind install a baffle plate on the air discharge side of the outdoor unit In heavy snowfall areas it is very important to select L installation site where the snow will not affect the unit and set the outlet side at a right angle to the direction of the wind 4 1 Construct a large canopy 2 Construct a pedestal Install the unit high enough off the ground to prevent burying in snow 3 Strong wind
34. e flare nut using a spanner until the tightening torque suddenly increases J W From that position further tighten the flare nut to the angle 2 listed below Piping size Further tightening angle Recommended arm length e mm degrees of spanner mm 1 Service port and service port cap 09 5 60 90 200 2 Valve stem 915 9 30 60 300 Bep connection The stop valve is factory closed Do not apply excessive force to the valve stem Doing so may break the valve body Since the stop valve attachment plate may be deformed if only a torque wrench is used to loosen or tighten the flare nut always make sure to secure the stop valve with a spanner then loosen or tighten the flare nut with a torque wrench Do not place the spanner on the stem cap as this could cause a refrigerant leak 1 2 1 Spanner 2 Torque wrench Installation manual DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 13 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 When it is expected that the operating pressure will be low for example when cooling will be performed while the outside air temperature is low sufficiently seal the flare nut in the stop valve on the gas line with silicon sealant to prevent freezing Silicon sealant Make sure there is no gap Opening closing the stop valve Opening the stop valve 1 Remove the valve cover 2 Insert a hexagon wrench liquid side 4 mm gas side 6 mm into the valve stem and turn th
35. e valve stem counterclockwise 3 When the valve stem cannot be turned any further stop turning The valve is now open Closing the stop valve 1 Remove the valve cover 2 Insert a hexagon wrench liquid side 4 mm gas side 6 mm into the valve stem and turn the valve stem clockwise 3 When the valve stem cannot be turned any further stop turning The valve is now closed Closing direction Gas side Liquid side Cautions on handling the stem cap The stem cap is sealed where indicated by the arrow Take care not to damage it N After handling the stop valve make sure to tighten the stem cap securely For the tightening torque refer to the table below Check for refrigerant leaks after tightening the stem Cautions on handling the service port Always use a charge hose equipped with a valve depressor pin since the service port is a Schrader type valve After handling the service port make sure to tighten the service port cap securely For the tightening torque refer to the table below Check for refrigerant leaks after tightening the service port cap 9 4 Tightening torques Item Tightening torque Nem Stem cap liquid side 13 5 16 5 Stem cap gas side 22 5 27 5 Service port cap 11 5 13 9 10 REFRIGERANT PIPING Field pipes can be installed in four directions A B C D 1 2 3
36. ed personnel according to the applicable legislation and this installation manual using a separate circuit Insufficient capacity of the power supply circuit or improper electrical construction may lead to electric shocks or fire Make sure that all wiring is secure using the specified wires and ensuring that external forces do not act on the terminal connections or wires Incomplete connection or fixing may cause a fire When wiring between the indoor and outdoor units and wiring the power supply form the wires so that the frontside panel can be securely fastened If the frontside panel is not in place overheat of the terminals electric shocks or a fire may be caused If refrigerant gas leaks during installation work ventilate the area immediately Toxic gas may be produced if refrigerant gas comes into contact with fire After completing the installation work check to make sure that there is no leakage of refrigerant gas Toxic gas may be produced if refrigerant gas leaks into the room and comes into contact with a source of fire such as a fan heater stove or cooker When planning to relocate former installed units you must first recover the refrigerant after the pump down operation Refer to chapter 13 Pump down operation on page 17 Never directly touch any accidental leaking refrigerant This could result in severe wounds caused by frostbite Be sure to install an earth leakage circuit breaker in accordance wi
37. gerant its composition Q kg 2 changes if charged in its gaseous state and normal system operation would then no longer be assured H Before charging check whether the refrigerant cylinder has a 7 attached or not and position the cylinder accordingly 6 5 Filling using a cylinder Filling using a cylinder 1 Factory refrigerant charge of the product with a siphon attached without a siphon attached see unit name plate Charge the liquid refrigerant Charge the liquid refrigerant 2 Additional refrigerant amount charged in the field with the cylinder in upright with the cylinder in up side 3 Total refrigerant charge position down position 4 Contains fluorinated greenhouse gases covered by the Kyoto Protocol 5 Outdoor unit 6 Refrigerant cylinder and manifold for charging ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 DAIKIN Installation manual Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 16 12 3 Calculating the additional refrigerant charge for models NOTICE Piping length is the one way length of liquid piping For V3 models It is not necessary to charge additionally if the piping length is under 30 m However if the piping length is under 5 m a complete recharging of the unit is required Refer to 12 5 Complete recharging on page 17 If the piping length is over 30m please determine the additional amount of refrigerant to be charged using the table bel
38. in state of gas its composition changes and the system will not Multilingual fluorinated work properly greenhouse gases label The connected indoor unit must be the EKHBH X016 unit designed exclusively for R410A Screw M4x12 for ERLQ only 1 Am 3 3 Installation Thermistor fixing plate for ERLQ only spare For installation of the indoor unit refer to the indoor unit y oper installation manual Never operate the unit without the thermistors R3T or Thermistor fixture pressure sensors S1NPH S1PH burning of the compressor for ERLQ only 1 may result sure to confirm the model name and the serial no of the outer front plates when attaching detaching the plates to avoid See the figure below for the location of the accessories mistakes B When closing the service panels take care that the tightening torque does not exceed 4 1 Nem 3 4 Model identification 1 Accessories ERLQ units include special equipment insulation bottom plate heater to ensure good operation in areas where low ambient temperature can occur together with high humidity conditions In such conditions the ERHQ models may experience problems with severe ice build up on the aircooled coil In case such conditions are expected the ERLQ must be installed instead These models contain countermeasures insulation bottom plate heater to prevent freeze up
39. ing phases Istheunit properly earthed 5 the wiring between units connected in series correct Are any ofthe wiring attachment screws loose 5 insulation resistance at least 1 MO Use 500 V mega tester when measuring insulation Do not use a mega tester for low voltage circuits Refrigerant Wi eis the size of the piping appropriate piping 5 the insulation material for the piping attached securely Are both the liquid and gas pipes insulated the stop valves for both the liquid side and the gas side open Extra Did you write down the extra refrigerant and the refrigerant refrigerant piping length Be sure to perform a test run sure to fully open the liquid side and gas side stop valves If you operate the unit with stop valves closed the compressor will break down Never leave the unit unattended with an open front panel during test run To protect the compressor make sure to turn the power supply 6 hours before starting operation During tests never pressurize the applications with a pressure higher than the maximum allowable pressure indicated on the name plate of the unit 15 2 Test run Carry out the test run in accordance with the indoor installation manual to ensure that all functions and parts are working properly 15 3 Failure diagnosis at the moment of first installation In case nothing is displayed on the remote con
40. ing the outdoor unit may cause a short circuit in the electrical box In cold climates seal knock out holes to avoid enterance of snow and humidity ERHQ011 016BAV3 W1 ERLQ011 016CAV34W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 DAIKIN Installation manual 14 10 2 Precautions when connecting field piping and regarding insulation careful not to let the indoor and outdoor piping come into contact with the compressor terminal cover If the liquid side piping insulation might come into contact with it adjust the height as shown in the figure below Also make sure the field piping does not touch the bolts or outer panels of the compressor When the outdoor unit is installed above the indoor unit the following can occur The condensated water on the stop valve can move to the indoor unit To avoid this please cover the stop valve with sealing material ifthe temperature is higher than 30 C and the humidity is higher than RH 80 then the thickness of the sealing materials should be at least 20 mm in order to avoid condensation on the surface of the sealing Be sure to insulate the liquid and gas side field piping NOTICE Any exposed piping may cause condensation The highest temperature that the gas side piping can reach is around 120 C so be sure to use insulating material which is very resistant DANGER Do not touch piping and internal parts
41. itional information 12 2 Precautions and general guidelines T 12 3 Calculating the additional refrigerant charge for ERHQ models 17 Some types of danger are represented by special symbols 12 4 Calculating the additional refrigerant charge for ERLQ models 17 12 5 Complete recharging A r Electric current For ERHQ only X IN For ERLQ 17 13 Pump down operation 17 AN Danger of burning and scalding 14 Electrical wiring WOFK ott 18 14 1 Precautions on electrical wiring 18 14 2 Connecting power supply and interunit wiring 18 14 3 Precautions on wiring of power supply and inter unit wiring 19 14 4 Electrical characteristics 19 ERHQ models 19 EREQimOdel 19 Installation manual DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 1 2 Meaning of used terms Installation manual Instruction manual specified for a certain product or application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instructions Instruction manual specified for a certain product or application which explains if relevant how to install configure operate and or maintain the product
42. llation or attachment of equipment or accessories could result in electric shock short circuit leaks fire or other damage to the equipment Be sure only to use accessories and optional equipment made by Daikin which are specially designed for use with the products as of subject in this manual and have them installed by an installer A DANGER ELECTRICAL SHOCK Switch off all power supply before removing the switchbox service panel or before making any connections or touching electrical parts To avoid electric shock be sure to disconnect the power supply 1 minute or more before servicing the electrical parts Even after 1 minute always measure the voltage at the terminals of main circuit capacitors or electrical parts and before touching be sure that those voltages are 50 V DC or less When service panels are removed live parts can easily be touched by accident Never leave the unit unattended during installation or servicing when the service panel is removed N DANGER DO NOT TOUCH PIPING AND INTERNAL A PARTS Do not touch the refrigerant piping water piping or internal parts during and immediately after operation The piping and internal parts may be hot or cold depending on the working condition of the unit Your hand may suffer burns or frostbite if you touch the piping or internal parts To avoid injury give the piping and internal parts time to return to normal temperature or if you must touch them be sure
43. n 18 UNIT SPECIFICATIONS 18 1 Technical specifications Casing material Painted galvanised steel Dimensions h x wxd_ mm 200 1345 900 320 Weight kg 103 108 113 114 Operation range cooling min max C 10 46 heating min max GG 20 8 35 25 35 tic hot wat 9 25 8 35 Refrigerant oil Daphne FVC68D Piping connection e liquid mm 9 5 gas mm 15 9 See operation range data information sheet detailed information 18 2 Electrical specifications v3 wi Phase 1 3N Frequency Hz 50 50 Voltage range minimum V 207 360 maximum V 253 440 Installation manual DAIKIN 21 ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 19 WIRING DIAGRAM Wire clamp L Live om Terminal strip N Neutral 65 Connector BLK Black ORG Orange EN NM Field wiring BLU Blue RED Red Protective earth screw BRN Brown WHT White D Noiseless earth GRN Green YLW Yellow NOTE 1 This wiring diagram only applies to the outdoor unit NOTE 4 Refer to the option manual for connecting wiring to 77 NOTE 5 Refer to the wiring diagram sticker on back of front panel on how to use BS1 BS4 and DS1 switch NOTE 6 Do not operate the unit by short circuiting protection device S1PH NOTE 8 Confi
44. n work from the outdoor unit causes trouble for example if the drain water may splash on people provide the drain piping using a drain socket optional sure the drain works properly ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 DAIKIN Installation manual Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 10 6 3 Installation method for prevention of falling over If it is necessary to prevent the unit from falling over install as shown in the figure prepare all 4 wires as indicated in the drawing unscrew the top plate at the 4 locations indicated A and B putthe screws through the nooses and screw them back tight A Location of the 2 fixation holes on the front side of the unit B Location of the 2 fixation holes on the rear side of the unit C Wires field supply 7 INSTALLATION SERVICING SPACE The numerical figures used in the figures represent the dimensions in mm Refer to 6 Precautions on installation on page 10 Precaution A In case of non stacked installation see figure 1 for ERHQ see figure 1 for ERLQ Suction side obstacle Z Obstacle is present 1 In these cases close the bottom of the installation frame to prevent the discharged air from being bypassed Discharge side obstacle Left side obstacle 2 In these cases only Right side obstacle 2 units can be installed 3 Recommended installation setup This situation is not gt lt allowed a Specific for
45. nit circuit but does not present any problem for correct operation of the unit 12 CHARGING REFRIGERANT 12 1 Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do not vent gases into the atmosphere Refrigerant type GWP value R410A 1975 1 GWP global warming potential Please fill in with indelible ink the factory refrigerant charge of the product the additional refrigerant amount charged the field and B 0 0 the total refrigerant charge on the fluorinated greenhouse gases label supplied with the product The filled out label must be adhered on the inside of the product and in the proximity of the product charging port e g on the inside of the service cover INFORMATION National implementation of EU regulation on certain fluorinated greenhouse gases may require to provide the appropriate official national language on the unit Therefore additional multilingual fluorinated greenhouse gases label is supplied with the unit Sticking instructions are illustrated on the backside of that label To avoid compressor breakdown Do not charge the refrigerant more than the specified amount This outdoor unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require additional charging of refrigerant See 12 4
46. or application Dealer Sales distributor for products as per the subject of this manual Installer Technical skilled person who is qualified to install products as per the subject of this manual User Person who is owner of the product and or operates the product Service company Qualified company which can perform or coordinate the required service to the unit Applicable legislation All international European national and local directives laws regulations and or codes which are relevant and applicable for a certain product or domain Accessories Equipment which is delivered with the unit and which needs to be installed according to instructions in the documentation Optional equipment Equipment which can optionally be combined to the products as per the subject of this manual Field supply Equipment which needs to be installed according to instructions in this manual but which are not supplied by Daikin 2 SAFETY CONSIDERATIONS The precautions here all cover very important topics so be sure to follow them carefully All activities described in this manual shall be carried out by an installer Be sure to wear adequate personal protection equipment protection gloves safety glasses when performing installation maintenance or service to the unit If not sure of installation procedures or operation of the unit always contact your local dealer for advice and information Improper insta
47. ow Table 1 Additional charging of refrigerant lt unit kg gt Refrigerant piping length 5 30 m 30 40 m 40 50 m 50 60 m 60 75 m a b 0 5 1 0 1 5 2 0 a Recharge required refer to 12 5 Complete recharging on page 17 b Additional charge not required For W1 models It is not necessary to charge additionally if the piping length is under 10 m If the piping length is over 10 m please determine the additional amount of refrigerant to be charged using the table below Table 2 Additional charging of refrigerant unit kg Refrigerant piping length 3 10m 10 20 20 30 30 40 40 50 50 60 60 75 Additional charge not required 12 4 Calculating the additional refrigerant charge for ERLG models NOTICE Piping length is the one way length of liquid piping It is not necessary to charge additionally if the piping length is under 10 m If the piping length is over 10 m please determine the additional amount of refrigerant to be charged using the formula below R total length m of liquid piping 10 m x 0 054 R additional charge kg rounded in units of 0 1 kg 12 5 Complete recharging NOTICE Before recharging make sure to execute vacuum drying of the internal piping of the unit as well To do so use the internal service port of the unit Do NOT use the service ports located on the stop valve see 9 3 Stop valve operation on page 13 since vacuum drying can not be
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49. re side Secure the electrical wiring with cable ties as shown in the figure in chapter 14 2 Connecting power supply and interunit wiring on page 18 so that it does not come in contact with the piping particularly on the high pressure side Make sure no external pressure is applied to the terminal connectors B When installing the earth leakage circuit breaker make sure that it is compatible with the inverter resistant to high frequency electrical noise to avoid unnecessary opening of the earth leakage circuit breaker install a phase advancing capacitor CAUTION Be sure to install the required fuses or circuit breakers 14 2 Connecting power supply and interunit wiring Secure the earth wire to the stop valve attachment plate so that it does not slide Secure the earth wire to the stop valve attachment plate one more time along with the electric wiring and the inter unit wiring the electrical wiring so that the front cover does not rise up when doing wiring work and attach the front cover securely 7 z 6 Ll A 5 a i tic 1 3l aTi 51 BE pL 08___ 1 1 Switch box 2 Stop valve attachment plate 3 Earth 4 Cable tie 5 Wi
50. recommended bubble test solution from your wholesaler Do not use soap water which may cause cracking of flare nuts soap water may contain salt which absorbs moisture that will freeze when the piping gets cold and or lead to corrosion of flared joints soap water may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare 2 3 Discharge all nitrogen gas Installation manual 15 DAIKIN ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 11 4 Vacuum drying To remove all moisture from the system proceed as follows 1 Evacuate the system for at least 2 hours to a target vacuum of 100 7 kPa Check that with the vacuum pump turned off the target vacuum is maintained for at least 1 hour Should you fail to reach the target vacuum within 2 hours or maintain the vacuum for 1 hour the system may contain too much moisture In that case break the vacuum by pressurizing with nitrogen gas to a gauge pressure of 0 05 MPa 0 5 bar and repeat steps 1 to 3 until all moisture has been removed The stop valves can now be opened and or additional refrigerant can be charged see 12 Charging refrigerant on page 16 INFORMATION After opening the stop valve it is possible that the pressure in the refrigerant piping does not rise This might be caused by e g the closed state of the expansion valve in the outdoor u
51. ring between units Power supply and earth wiring Only if bottom plate heater applicable optional for ERHQ 7 Bottom plate heater cable 8 Power supply of bottom plate heater from indoor unit o INFORMATION ERLQ units control the bottom plate heater internally no field wiring applicable ERHQ011 016BAV3 W1 ERLQ011 016CAV34W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 DAIKIN Installation manual 1 Power supply earth wiring and if applicable bottom plate heater wire 2 Wiring between unit When cables are routed from the unit a protection sleeve for the conduits PG insertions can be inserted at the knock out hole See figure 3 1 Wire 2 Bush 3 Nut 4 Frame 5 Hose A Inside B Outside When you do not use a wire conduit be sure to protect the wires with vinyl tubes to prevent the edge of the knock out hole from cutting the wires W Follow the electric wiring diagram for electrical wiring works delivered with the unit located at the inside of the front plate Form the wires and fix the cover firmly so that the cover may be fit in properly 14 3 Precautions on wiring of power supply and inter unit wiring Use a round crimp style terminal for connection to the power supply terminal board In case it cannot be used due to unavoidable reasons be sure to observe the following instruction 1 Round pressure terminal 2 Cut out section 3 Cup washer CD 1 23
52. rm the method of setting the selector switches DS1 by service manual Factory setting of all switches OFF NOTE 9 Option Option Wiring depending on model Wiring depending on model A1P A4P Printed circuit board Thermistor heat exchanger middle BS1 BS4 Push button switch Thermistor liquid C1 C4 Capacitor Thermistor fin for W1 models only DIP switch Thermistor fin for V3 models only Bottom plate heater Signal receiver circuit for V3 models only nen Crankcase heater Pressure sensor F1U F9U 5 Fuse Pressure switch high Service monitor green Signal transmission circuit for models HAP AP Service monitor green for W1 models only only H1P H7P 1 Service monitor orange for W1 models Power module for V3 models only only VIR V2R Power module for W1 models only H1P H7P A2P Service monitor orange for V3 models V2R V3R Diode module for models only only Diode module for W1 models only Magnetic contactor for W1 models only are Insulated gate bipolar transistor for V3 Magnetic relay models only Magnetic relay for V3 models only XM ene Terminal strip Reactor Connector option bottom plate heater ERHQ Motor compressor Connector option Motor fan upper Connector Motor fan lower Expansion valve main
53. rolled by the outdoor pcb All 40 bar and for ERLQ is 4 17 MPa or 41 7 bar pipes of functionalities related to domestic hot water of an larger wall thickness may be required Refer to paragraph ERLQ_CA are only applicable in combination with an 8 1 Selection of piping material on page 12 EKHBH X016BB indoor unit An outdoor unit can be connected to an 3 1 Scope of the manual EKHBH XO16BB indoor unit or to an EKHBH X016AA AB BA indoor unit if a bottom plate heater This manual describes the procedures for handling installing and kit is required see Possible options on page 5 connecting ERHQ and ERLQ units This manual has been prepared to ensure adequate maintenance of the unit and it will provide help if problems occur 3 5 Accessories Check if the following accessories are included with the unit 3 2 Precautions for R410A The refrigerant requires strict cautions for keeping the system Installation manual 1 clean dry and tight Clean and dry Foreign materials including mineral oils or moisture should be prevented from getting mixed into the system Cable tie 2 SA Tight lt Read 9 Precautions refrigerant piping 12 carefully and follow these procedures correctly label 1 PEZ Since R410A is a mixed refrigerant the required additional refrigerant must be charged in its liquid state If the refrigerant is
54. tandard that shall be used NOTICE To persons in charge of piping work Be sure to open the stop valve after piping installing and vacuming is complete Running the system with the valve closed may break the compressor INFORMATION It is forbidden to discharge refrigerant into the atmosphere Collect the refrigerant in accordance with the freon collection and destruction law 8 1 Selection of piping material Construction material phosphoric acid deoxidised seamless copper for refrigerant Temper grade use piping with temper grade in function of the pipe diameter as listed in table below The pipe thickness of the refrigerant piping should comply with applicable legislation The minimal pipe thickness for R410A piping must be in accordance with the table below Temper grade of piping material Minimal thickness t mm 9 5 0 80 15 9 1 00 O Annealed 8 2 Refrigerant pipe size The pipes between outdoor unit and indoor unit should have the same size as the outdoor connections Refrigerant pipe size mm Gas pipe 15 9 Liquid pipe 09 5 8 3 Allowable pipe length and height difference See the table below concerning allowable lengths and heights Refer to figure 2 Assume that the longest line in the figure corresponds with the actual longest pipe and the highest unit in the figure corresponds with the actual highest unit For ERHQ only Allo
55. th applicable legislation Failure to do so may cause electrical shock and fire Earth the unit Earthing resistance should be according to applicable legislation Do not connect the earth wire to gas or water pipes lightning conductor or telephone earth wire Incomplete earthing may cause electric shocks Gas pipe Ignition or explosion may occur if the gas leaks Water pipe Hard vinyl tubes are not effective earths W Lightning conductor or telephone earth wire Electric potential may rise abnormally if struck by a lightning bolt Install drain piping according to this installation manual to ensure good drainage and insulate the pipe to prevent condensation See combination table in Possible options on page 5 Improper drain piping may cause water leakage and make the furnitures get wet Install the indoor and outdoor units power wire and connecting wire at least 1 meter away from televisions or radios to prevent image interference or noise Depending on the radio waves a distance of 1 meter may not be sufficient to eliminate the noise Do not rinse the outdoor unit This may cause electric shocks or fire Do not install the unit in places such as the following W Where there is mist of mineral oil oil spray or vapour for example a kitchen Plastic parts may deteriorate and cause them to fall out or water to leak Where corrosive gas such as sulphurous acid gas is produced Corrosion of
56. the unit has been factory tested for leaks Use a 2 stage vacuum pump with a non return valve which can evacuate to a gauge pressure of 100 7 kPa 5 Torr absolute 755 mm Hg Connect the vacuum pump to both the service port of the gas stop valve and the liquid stop valve to increase efficiency NOTICE not purge the air with refrigerants Use a vacuum pump to evacuate the installation No additional refrigerant is provided for air purging Make sure that the gas stop valve and liquid stop valve are firmly closed before performing the leak test or vacuum drying 11 2 Setup See figure 5 Pressure gauge Nitrogen Refrigerant Weighing machine Vacuum pump Stop valve 11 3 Leak test The leak test must satisfy specification EN 378 2 1 Vacuum leak test 11 Evacuate the system from the liquid and gas piping to 100 7 kPa 5 Torr 1 2 Once reached turn off the vacuum pump and check that the pressure does not rise for at least 1 minute 1 3 Should the pressure rise the system may either contain moisture see vacuum drying below or have leaks 2 Pressure leak test 2 1 Break the vacuum by pressurizing with nitrogen gas to a minimum gauge pressure of 0 2 MPa 2 bar Never set the gauge pressure higher than the maximum operation pressure of the unit i e 4 0 MPa 40 bar 2 2 Test for leaks by applying a bubble test solution to all piping connections NOTICE Make sure to use a
57. to wear protective gloves ERHQ011 016BAV3 W1 ERLQ011 016CAV3 W1 Outdoor unit for air to water heat pump 4PW57794 1A 05 2011 DAIKIN Installation manual 2 Warning Caution Ask your dealer or qualified personnel to carry out installation work Do not install the machine by yourself Improper installation may result in water leakage electric shocks or fire Perform installation work in accordance with this installation manual Improper installation may lead to water leakage electric shocks or fire Consult your local dealer regarding what to do in case of refrigerant leakage When the unit is to be installed in a small room it is necessary to take proper measures so that the amount of any leaked refrigerant does not exceed the concentration limit in the event of a leakage Otherwise this may lead to an accident due to oxygen depletion Be sure to use only the specified accessories and parts for installation work Failure to use the specified parts may result in water leakage electric shocks fire or the unit falling Install the unit on a foundation that can withstand its weight Insufficient strength may result in the fall of equipment and causing injury Carry out the specified installation work in consideration of strong winds typhoons or earthquakes Improper installation work may result in accidents due to fall of equipment Make certain that all electrical work is carried out by qualifi
58. troller the current set temperature does not display check for any of the following abnormalities before you can diagnose possible malfunction codes H Disconnection or wiring error between power supply and outdoor unit between outdoor unit and indoor units between indoor unit and remote controller Wi The fuse on the outdoor unit PCB may have run out If the remote controller shows or L8 as an error code there is a possibility that either the stop valves are closed or that air inlet or air outlet are blocked If the error code Uc is displayed on the remote controller check for voltage imbalance If the error code LU is displayed on the remote controller it is possible that air inlet or air outlet are blocked For a missing phase in case of W1 units E or Uc will be displayed on the remote controller of the indoor unit Operation will be impossible with either one of these phenomena If this happens turn off the power re check the wiring and switch the position of two of the three electrical wires 16 MAINTENANCE AND SERVICING 16 1 Service precautions In order to ensure optimal operation of the unit a number of checks and inspections should be carried out on the unit at regular intervals preferably yearly This maintenance shall be carried out by the installer or service agent A DANGER ELECTRICAL SHOCK See 2 Safety considerations on page 2 NOTICE Touch a
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60. wable pipe length v3 wi Maximum total one way piping length 757 95 Maximum height between indoor and outdoor Chargeless length L 30 10 a Parenthesized figure represents the equivalent length For ERLQ only Allowable pipe length v3 wi Maximum total one way piping length som 70m Maximum height between indoor and outdoor Chargeless length L lt 10 a Parenthesized figure represents the equivalent length 9 PRECAUTIONS ON REFRIGERANT PIPING Do not allow anything other than the designated refrigerant to get mixed into the freezing cycle such as air etc If any refrigerant gas leaks while working on the unit ventilate the room thoroughly right away Use R410A only when adding refrigerant Installation tools Make sure to use installation tools gauge manifold charge hose etc that are exclusively used for R410A installations to withstand the pressure and to prevent foreign materials e g mineral oils and moisture from mixing into the system Vacuum pump Use a 2 stage vacuum pump with a non return valve Make sure the pump oil does not flow oppositely into the system while the pump is not working Use a vacuum pump which can evacuate to 100 7 kPa 5 Torr 755 mm Hg n order to prevent dirt liquid or dust from entering the piping cure the piping with a pinch or taping Great caution is needed when passing copper tubes through walls E X Place Install
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