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is/are in conformity with provisions of the following UK legislation

hereby declares under its sole responsibility that the air conditioner(s) and heat pump(s) for use in residential, commercial, and light-industrial environments described below:

The Electrical Equipment (Safety) Regulations 2016

The Supply of Machinery (Safety) Regulations 2008

The Electromagnetic Compatibility Regulations 2016

The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019

The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012

UK DECLARATION OF CONFORMITY

MITSUBISHI ELECTRIC AIR CONDITIONING SYSTEMS EUROPE LTD.

NETTLEHILL ROAD, HOUSTOUN INDUSTRIAL ESTATE, LIVINGSTON, EH54 5EQ, SCOTLAND, UNITED KINGDOM

MITSUBISHI ELECTRIC, EHWT17D-MHEDW

Issued
UNITED KINGDOM

Atsushi EDAYOSHI
Manager, Quality Assurance Department

1. Apr. 2022

RK79D203K01_01en.indd 57

2022/02/14 16:52:59

059

Содержание EHWT17D-MHEDW

Страница 1: ...UAL For safe and correct use read this manual before installing the heat pump unit which is installed indoors FOR INSTALLER English Water to Water Heat Pump EHWT17D MHEDW RK79D203K01_01en indd 1 2022 02 14 16 52 37 001 ...

Страница 2: ...ting mode for showers sinks etc 5 Flow temperature Temperature at which water is delivered to the primary circuit 6 Freeze stat function Heating control routine to prevent water pipes freezing 7 FTC Flow temperature controller the circuit board in charge of controlling the water circuit 8 C B Controller board the circuit board in charge of controlling the refrigerant and ambient loop 9 Heating mod...

Страница 3: ...iodical maintenance Be sure to follow your local regulations Be sure to follow the instructions provided in this manual MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT WARNING Risk of fire This unit uses a flammable refrigerant If refrigerant leaks and comes in contact with fire or heating part it will create harmful gas and there is risk of fire Read the OPERATION MANUAL carefully before operation Serv...

Страница 4: ...ectrical work should be performed by a qualified technician accord ing to local regulations and the instructions given in this manual The units must be powered by a dedicated power supply and the correct voltage and circuit breakers must be used Wiring should be in accordance with national wiring regulations Connec tions must be made securely and without tension on the terminals Earth unit correct...

Страница 5: ...w the maximum allowable flow temperature of all the heat emitters in Zone2 circuit Do not install the unit where combustible gases may leak be produced flow or accumulate If combustible gas accumulates around the unit fire or explosion may result Do not use means to clean other than those recommended by the man ufacturer The appliance shall be stored in a room without continuously operating igni t...

Страница 6: ... immediately and contact your local dealer The ambient temperature inside the unit can get much higher than that of the room e g 70 C In case of a brine leak hot parts inside the unit can create a hazardous situation The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation RK79D203K01_01en indd 5 2022 02 14 16 52 ...

Страница 7: ...fore operation is resumed DHW tank should be flushed through with potable water and sterilised accordinaly Preventative measures should be taken against water hammer such as installing a Water Hammer Arrestor on the primary water circuit as direct ed by the manufacturer Do not use refrigerant other than R32 refrigerant Servicing shall be performed only as recommended by the manufacturer Use the fo...

Страница 8: ...th the specified capacity If the circuit breaker capacity is larger than the specified capacity breakdown or fire may result Tools for R32 Gauge manifold Flare tool Charge hose Size adjustment gauge Gas leak detector Vacuum pump adapter Torque wrench Electronic refrigerant charging scale RK79D203K01_01en indd 7 2022 02 14 16 52 37 008 ...

Страница 9: ...7 1 L min Ambient loop Max 24 0 L min Min 7 2 L min DHW tank performance Maximum allowable hot water temperature 70 C Declared load profile L Average climate Water heating energy efficiency class A Time to reheat 70 of DHW tank to 65 C 4 19 3 min Time to raise DHW tank temp 15 to 65 C 4 22 8 min Electrical data Heat pump Power supply Phase voltage frequency N 230 V 50 Hz Breaker 16 A Immersion hea...

Страница 10: ...THW1 26 Return water temp thermistor THW2 27 DHW tank water temp thermistor THW5A 28 DHW tank water temp thermistor THW5B 29 Refrigerant liquid temp thermistor TH2 30 Module 31 Drain pipe Local supply 32 Expansion vessel Sanitary circuit water 1 33 Isolating valve Local supply 34 Magnetic filter Local supply Recommended 35 PICV Pressure Independent Control Valve Local supply 36 Compressor 37 High ...

Страница 11: ...For inlets 3 4 and 5 run high voltage wires including power cable and external output wires For a wireless receiver option cable and ecodan Wi Fi interface option cable use inlet 1 Table 3 3 Unit mm Technical Drawings HANDLE HANDLE HANDLE F E D C 0 75 130 301 6 460 6 505 6 550 6 B A G 0 376 3 471 5 180 240 0 40 7 100 7 299 6 394 9 549 9 0 41 7 86 7 444 9 499 9 220 83 680 LEFT SIDE BACK 595 FRONT R...

Страница 12: ... between the expansion valve part of item 46 and the heat pump unit safety matter For space heating primary circuit a suitable expansion vessel MUST be supplied and fitted by installer See figure 4 3 2 Be sure to install a magnetic filter item 34 on the inlet pipework to the heat pump unit Suitable drain pipework should be attached to the relief valves instructed to be connected to it in Figure 3 ...

Страница 13: ... flow water temp thermistor THW6 4 Zone1 return water temp thermistor THW7 5 Zone1 water circulation pump local supply 6 Motorized mixing valve local supply 7 Zone2 flow water temp thermistor THW8 8 Zone2 return water temp thermistor THW9 9 Zone2 water circulation pump local supply Optional part PAC TH011 E Optional part PAC TH011 E 10 Zone2 heat emitters e g underfloor heating local supply 11 Boi...

Страница 14: ...a b a b a b 3 5 6 1 Air to Water Heat Pump 2 Header 3 Buffer Tank 4 Central plate Heat source Heat pump 5 Pump 6 Valve 7 Heat exchanger Technical Information 3 13 en Local system 2 RK79D203K01_01en indd 13 2022 02 14 16 52 42 014 ...

Страница 15: ...nal pump s supplied locally Refer to the menu tree in 5 1 9 Main remote controller Immersion heater Pump 1 1 Pump 2 Pump 3 EHWT17D MHEDW 3 kW factory fitted pump When additional pumps supplied locally are connected as Pump 2 3 change setting according to specs of the pumps Table 3 4 1 displayed in the energy monitor setting mode means the factory fitted pump is connected as Pump 1 so that the inpu...

Страница 16: ...e that the floor is strong enough Care should be taken that minimum distances around and in front of the unit for service access are observed Figure 4 1 2 Secure the heat pump unit to prevent it being knocked over Install the heat pump unit where it is not exposed to water excessive moisture Service access diagrams Service access Parameter Dimension mm a 300 b 150 c distance behind unit not visibl...

Страница 17: ...e radiator heat emitter Position it on an internal wall Note Do not position the thermostat excessively close to the ex ternal wall The thermostat may detect the temperature of the wall which could affect appropriate control of the room temperature Position it approx 1 5 m from floor level Ambient temperature thermistor TH7 Please install the ambient temperature thermistor TH7 in a place where ext...

Страница 18: ... with band etc on the module The module is then re installed in reverse order When returning the Module unit assy to the unit be careful not to get your hands caught between the unit and the Module unit assy Hold the module unit assy with nylon bands Module handles NOT the corners of it HAZARD 4 Pull the MODULE BOX out by using the MODULE HANDLES RK79D203K01_01en indd 17 2022 02 14 16 52 49 018 ...

Страница 19: ...nse pipework of building debris solder etc using a suitable chemical cleansing agent Flush the system to remove chemical cleanser The responsible installer should decide if anti freeze solution is necessary for each site s conditions Corrosion inhibitor however should ALWAYS be used Installation Ambient loop Before installation of heat pump unit thoroughly cleanse pipework of building debris solde...

Страница 20: ...ert copper liner for DHW pipe accessory parts into the pipes and tighten them from 0 75 to 1 25 turns Do not over tighten compression fittings as this will lead to deformation of the olive ring and potential leaks Note Before brazing pipes in the field protect pipes on the cylinder unit using wet towels etc as heat shield Insulation of Pipework All exposed water pipework should be insulated to pre...

Страница 21: ...ould erode the pipes Water circulation pump characteristics Flow rate L min Figure 4 3 3 External static pressure kPa Speed 1 Speed 2 Speed 3 Speed 4 Speed 5 Water Circulation Pump Characteristics 1 Primary circuit Pump speed can be selected by main remote controller setting see Figure 4 3 3 Adjust the pump speed setting so that the flow rate in the primary circuit is appropriate for the Table 4 3...

Страница 22: ...nel 4 Fit the panel 5 Connect the pipes 6 Please fill in the gap between panel and ambient loop pipes with insulation Notes For side connection the pipe diameter is 22 2 mm Triangle marks on left side panel shows center of ambient loop pipes Noise from heat pump can be significant How to install PICV Pressure Independent Control Valve PICV should be installed on the Ambient loop pipe in order to b...

Страница 23: ...ntifreeze solution mix When connecting metal pipes of different materials insulate the joints to prevent a corrosive reaction taking place which will damage the pipework 8 Check for leakages If leakage is found retighten the nut onto the connections 9 Pressurise system to atmospheric pressure Top up with water as necessary 10 Close the valves on the filler connector Open the three way valve in the...

Страница 24: ...undish before any elbows or bends in the pipework C Be installed with a continuous fall D Have discharges visible at both the tundish and the final point of discharge but where this is not possible or is practically difficult there should be clear visibility at one or other of these locations Examples of acceptable discharge arrange ments are i Ideally below a fixed grating and above the water sea...

Страница 25: ...les should use the cable strap 3 5 Power cables should use the cable strap 6 FOn completion of wiring ensure main remote controller cable is connected to the relay connector Before connecting the main remote controller cable remove the fastener bundling the cable between the power circuit board and the relay connector Caution Do NOT remove the band bundling the cable be tween the main remote contr...

Страница 26: ...t protection function install a breaker with that function along the same power line 2 A breaker with at least 3 0 mm contact separation in each pole shall be provided Use earth leakage breaker NV The breaker shall be provided to ensure disconnection of all active phase conductors of the supply 3 The values given in the table above are not always measured against the ground value 4 Use wires in co...

Страница 27: ...essor stops by error Inactive Active 1 OFF SW2 6 Mixing tank WITHOUT Mixing tank WITH Mixing tank OFF SW2 7 2 zone temperature control Inactive Active 4 OFF SW2 8 ON SW3 SW3 1 Room thermostat 2 input IN6 logic change Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open OFF SW3 2 Flow switch 2 3 input IN3 7 logic change Failure detection at short Failure detection at ope...

Страница 28: ... 10 minutes or more otherwise the compressor may be damaged 2 If using outdoor thermostat for controlling operation of heaters the lifetime of the heaters and related parts may be reduced 3 To turn on the boiler operation use the main remote controller to select Boiler in External input setting screen in the service menu 4 Connectable electric energy meter and heat meter Pulse type Voltage free co...

Страница 29: ... 5 1 2 Thermistor Zone2 return water temp Option 1 THW10 TBI 6 5 6 Thermistor Mixing tank water temp PAC TH012HT E THWB1 TBI 6 7 8 Thermistor Boiler flow water temp Option 1 Ensure to wire thermistor wirings away from the power line and or OUT1 to 15 wirings 1 The maximum length of the thermistor wiring is 30 m When the wires are wired to adjacent terminals use ring terminals and insulate the wire...

Страница 30: ...0 5A Max OUT10 TBO 3 1 2 Boiler output OFF ON non voltage contact 220 240V AC 30V DC 0 5A or less 10mA 5V DC or more OUT16 TBO 3 3 4 Heating thermo ON signal OFF ON OUTA1 TBI 4 7 8 Analog output PICV Output OFF ON 0 10V DC 5mA max Do not connect to the terminals that are indicated as in the Terminal block field 1 For 2 zone temperature control 2 For 2 zone valve ON OFF control Note 1 Do not connec...

Страница 31: ...ption 4 Room temperature thermostat local supply 3 Ensure to install the room thermostat for Zone1 in main room since the Room temp control for Zone1 is prioritized 4 The wireless remote controller can be used as a thermostat Zone1 Zone2 N L FTC TBO 2 1 2 3 A B 5 1 3 Wiring for 2 zone temperature control Connect the pipe work and locally supplied parts according to the relevant circuit diagram sho...

Страница 32: ...of this manual for instructions on how to set compensation curve Flow temp or Room temp Auto adaptation For instructions on how to set the thermistor input for the FTC please refer to Initial settings section The factory setting for space heating mode is pre set to Room temp mode auto adaptation If there is no room sensor present in the system this setting must be changed to either Compensation cu...

Страница 33: ...d for monitoring the room temperature for Auto Adaptation function whilst keeping all its fea tures of the main remote controller available The main remote controller and FTC are connected by a 2 core 0 3 mm non polar cable local supply with a maximum length of 500 m To use the sensor in the main remote controller the main remote controller should come off from the heat pump unit Otherwise it will...

Страница 34: ...eat pump unit Wire the thermistor to the TH1 connector on FTC The number of room temperature thermistors that can be connected to FTC is always one The thermostat is used to set the maximum temperature for heating Zone2 room The thermostat is wired to IN6 on FTC If the thermostat is allocated to Zone1 wire it to IN1 on TBI 1 Refer to 5 1 2 Control option C FTC 20 0 C C B Main remote controller rem...

Страница 35: ...e main remote controller mounted on the heat pump unit The thermostat for Zone1 is wired to IN1 in TBI 1 on FTC The thermostat for Zone2 is wired to IN6 in TBI 1 on FTC Note For the options above the sensor types can be exchanged between Zone1 and Zone2 e g Wireless remote controller in Zone1 and Room temp thermostat in Zone2 can be changed to Room temp thermostat and wireless remote controller re...

Страница 36: ...LED lamps on the FTC control board are all off 6 The read and write operations have been verified using the following SD memory cards however these operations are not always guaranteed as the specifications of these SD memory cards could change Manufacturer Model Tested in Verbatim 44015 Mar 2012 SanDisk SDSDB 002G B35 Oct 2011 Panasonic RP SDP04GE1K Oct 2011 Arvato 2GB PS8032 TSB 24nm MLC Jun 201...

Страница 37: ...is activated 3 Electric heater When this icon is displayed the Electric heaters immersion heater are in use 4 Target temperature Target flow temperature Target room temperature Compensation curve 5 OPTION Pressing the function button below this icon will display the option screen 6 Increase desired temperature 7 Decrease desired temperature 8 Z1 Z2 Pressing the function button below this icon swit...

Страница 38: ...RICTION 1 The screen goes to the next setting screen Changes have not been saved Main Settings Menu The main settings menu can be accessed by pressing the MENU button To reduce the risk of untrained end users altering the settings accidentally there are two access levels to the main settings and the service section menu is password protected User Level Short press If the MENU button is pressed onc...

Страница 39: ...ing DHW DHW ON OFF DHW ON Prohibited Timer Heating ON Prohibited Timer Energy monitor Consumed electrical energy Delivered energy Normal Eco DHW max temp Hot water temp Frequency Start time Max operation time Duration of max temp DHW max temp drop DHW max operation time DHW mode restriction Active Non active Heating room temp Heating flow temp Heating compensation curve Heating room temp Heating f...

Страница 40: ... pump capacity Boiler Boiler Boiler efficiency Booster heater 2 capacity Booster heater 1 capacity Priority Ambient Cost CO2 Ambient Intelligent settings Minimum temp Minimum ON OFF Mode Interval Maximum temp Maximum Lower limit Upper limit Minimum Maximum Delay ON OFF Booster heater Immersion heater 1 For more details refer to the installation manual of PAC TH012HT E Menu Analog output Priority I...

Страница 41: ... wizard F1 F2 F3 Operation settings ON OFF Heating Pump cycles Smart grid ready DHW Target temp ON OFF Target temp ON OFF Heating Interval ON OFF Target temp Start Finish Temp increase step Temp decrease step Max temp Max temp period Increase interval Decrease interval Flow temp Increase Flow temp Decrease Floor dry up function ON OFF Ambient temp Judgement time Forced heating ON Summer mode Water...

Страница 42: ...ions If the installer attempts to change the settings whilst the unit is running the main remote controller will display a reminder message prompting the installer to stop operation before continuing By selecting Yes the unit will cease operation Selected Running Error indication Manual operation and heat source setting can not be selected if the system is running A screen will be displayed asking...

Страница 43: ...trol 2 Running Period from valve fully open at a hot water mixing ratio of 100 to valve fully closed at a cold water mixing ratio of 100 Interval Interval min to control the mixing valve Flow sensor 3 Minimum The minimum flow rate to be detected at flow sensor Maximum The maximum flow rate to be detected at flow sensor 1 Decreasing time before pump switched off may increase the duration of stand b...

Страница 44: ...t function 1 An operational function to prevent the water circuit from freezing when outdoor ambient tempera ture drops Flow t The target outlet water temperature at water circuit when operating in Freeze stat function 2 Outdoor ambient temp Minimum outdoor ambient temperature which freeze stat function will begin to operate 3 20ºC or choose If asterisk is chosen freeze stat function is deactivate...

Страница 45: ...nd performs boiler operation The selection of Heater whilst a signal is being sent to IN5 performs electric heater only operation and the selection of Boiler performs boiler operation Functions Symbol Description Option Range Unit Default Floor dry up function a Set the function to ON and power on the system using the main remote controller and the dry up heating operation will start On Off Off Fl...

Страница 46: ...tch settings DIP switch Function OFF ON Effective timing Default settings SW1 SW1 1 OFF SW1 2 Abnormal history clear Normal Clear Always OFF SW4 SW4 1 OFF SW4 2 OFF SW5 SW5 1 OFF SW5 2 Power failure automatic recovery 1 No auto recovery Auto recovery When power supply ON ON SW5 3 OFF SW5 4 OFF SW5 5 OFF SW5 6 OFF SW6 SW6 1 OFF SW6 2 OFF SW6 3 OFF SW6 4 Model select Heat pump setting OFF SW6 5 ON S...

Страница 47: ...ion chemicals remain in the DHW tank as this will cause premature failure of the heater Initial flush procedure Energise system to heat up heat pump unit contents to a temperature of approx 30 40 C Flush drain the water contents to remove any residue impurities resulting from the installation works Use the heat pump unit drain cock to safely discharge the warmed water to drain via a suitable hose ...

Страница 48: ...the boiler may be reduced Check for water leakage strainer blockage water circulation pump function LJ DHW operation error type of external plate HEX Check for disconnection of DHW tank water temp thermistor THW5B Flow rate of the sanitary circuit may be reduced Check for water circulation pump function LL Setting errors of DIP switches on FTC control board For boiler operation check that DIP SW1 ...

Страница 49: ...ODULE SIDE 7 Refer to How to remove the module Check connection of the wire between UNIT SIDE and MODULE SIDE F5 5201 63H connector open Abnormal if 63H connector circuit is open for 3 minutes continuously after power supply 63H High pressure switch 1 Disconnection or contact failure of 63H connector on C B 1 Check connection of 63H connector on C B 2 Disconnection or contact failure of 63H 2 Chec...

Страница 50: ...or 2 Check resistance value of TH4 TH33 or temperature by microprocessor 3 Defective C B 3 Replace C B U4 TH3 5105 TH7 5106 TH8 5110 TH32 5132 TH34 5134 Open short of heat pump unit thermistors TH3 TH32 TH34 TH7 and TH8 Abnormal if open or short is detected during compressor operation Open detection of TH3 TH32 and TH34 is inoperative for 10 seconds to 10 minutes after compressor starting Note Che...

Страница 51: ...or compressor is detected within 30 seconds after compressor starts operating 1 Decrease of power supply voltage 1 Check facility of power supply 2 Looseness disconnection or converse of compressor wiring connection 2 Correct the wiring U V W phase to compressor 3 Defective compressor 3 Check compressor 4 Defective power circuit board 4 Replace power circuit board UH 5300 Current sensor error or i...

Страница 52: ...ividual Any required parts should be purchased from Mitsubishi Electric NEVER bypass safety devices or operate the unit without them being fully operational For more details refer to service handbook Draining the heat pump unit and its primary heating circuit local WARNING DRAINED WATER MAY BE VERY HOT 1 Firstly to eliminate any air in heat pump unit pipe works engage the DHW pump circulator for 1...

Страница 53: ...tion of maximum temp 1 to 120 min 30 min Heating Zone1 operation mode Heating room temp Heating flow temp Heating compensation curve Room temp Zone2 operation mode 1 Heating room temp Heating flow temp Heating compensation curve Compensation curve Compensa tion curve Hi flow temp set point Zone1 outdoor ambient temp 30 C to 33 C 15 C Zone1 flow temp 20 C to 60 C 50 C Zone2 outdoor ambient temp 1 3...

Страница 54: ...flow rate range Minimum 0 to 100L min 5 L min Maximum 0 to 100L min 100 L min Quiet mode Day Mon to Sun Time 0 00 to 23 45 Quiet level Normal Level1 Level2 Normal Operation settings Heating operation 4 Flow temp range 6 Minimum temp 20 to 45 C 30 C Maximum temp 35 to 60 C 50 C Room temp control 9 Mode Normal Fast Normal Interval 10 to 60 min 10 min Heat pump thermo diff adjust On Off 2 On Lower li...

Страница 55: ...Pump 1 0 to 200W or factory fitted pump Pump 2 0 to 200W 0W Pump 3 0 to 200W 0W Pump 4 0 to 200W 72W Electric energy meter 0 1 1 10 100 1000 pulse kWh 1 pulse kWh Heat meter 0 1 1 10 100 1000 pulse kWh 1 pulse kWh External input set tings Demand control IN4 Heat source OFF Boiler operation Boiler operation Outdoor thermostat IN5 Heater operation Boiler operation Boiler operation Thermo ON output Z...

Страница 56: ... position 1 The boiler temperature thermistor is an optional part 2 OUT10 has no voltage across it 3 Boiler heating is controlled on off by the Room temp thermostat Main remote controller settings 1 Go to Service menu Heat source setting and choose Boiler or Hybrid 4 2 Go to Service menu Operation settings Boiler settings to make detailed settings for Hybrid above 4 The Hybrid automatically switch...

Страница 57: ...A4_white_tombo indd 1 2018 08 09 14 11 29 057 ...

Страница 58: ...pre responsabilité que le s climatiseur s et la les pompe s à chaleur destinés à un usage dans des environnements résidentiels commerciaux et d industrie légère décrits ci dessous niniejszym oświadcza na swoją wyłączną odpowiedzialność że klimatyzatory i pompy ciepła do zastosowań w środowisku mieszkalnym handlowym i lekko uprzemysłowionym opisane poniżej tímto na vlastní odpovědnost prohlašuje že...

Страница 59: ... Regulations 2016 The Ecodesign for Energy Related Products and Energy Information Amendment EU Exit Regulations 2019 The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 UK DECLARATION OF CONFORMITY MITSUBISHI ELECTRIC AIR CONDITIONING SYSTEMS EUROPE LTD NETTLEHILL ROAD HOUSTOUN INDUSTRIAL ESTATE LIVINGSTON EH54 5EQ SCOTLAND UNITED KIN...

Страница 60: ...h 8210 Loppem Autobaan 2 Belgium Irish Branch Westgate Business Park Ballymount Road Upper Ballymount Dublin 24 Ireland Italian Branch Palazzo Sirio Ingresso 1 Viale Colleoni 7 20864 Agrate Brianza MI Italy Norwegian Branch Gneisveien 2D 1914 Ytre Enebakk Norway Portuguese Branch Avda do Forte 10 2794 019 Carnaxide Lisbon Portugal Spanish Branch Av Castilla 2 Parque Empresarial San Fernando Ed Eur...

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