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Mitsubishi Electric EHWT17D-MHEDW Data Book
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Mitsubishi Electric EHWT17D-MHEDW Data Book

Water to water heat pump
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DATA BOOK
Vol.5.5
R32

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Summary of Contents for Mitsubishi Electric EHWT17D-MHEDW

  • Page 1 DATA BOOK Vol.5.5...
  • Page 3 Contents Outdoorunit ......Cylinderunit Hydrobox GroundSourceHeatPump..B-1 Flowtemp.controller....C-1 Optional parts......D-1  W heninstallingorrelocating,orservicingtheheatpump,useonlythespecifiedrefrigerant(R32)tocharge therefrigerantlines.Donotmixitwithanyotherrefrigerantanddonotallowairtoremaininthelines.  I fairismixedwiththerefrigerant,thenitcanbethecauseofabnormalhighpressureintherefrigerantline, andmayresultinanexplosionandotherhazards.
  • Page 5 Contents Specifications ............A-2 1.1 Outdoor unit specifications ..........A-2 1.2 Capacity ................. A-15 1.3 Maximum outlet water temperature ....... A-26 1.4 Available range (Water flow rate, return water temp.) ..A-28 Outlines and dimensions ........A-35 Wiring diagrams ...........A-40 Refrigerant system diagrams ......A-49 Performance data ..........A-53 5.1 Cooling performance data ..........
  • Page 6 Contents Combination table ..........B-3 Specifications ............B-6 2.1. Cylinder unit ..............B-6 2.2. Hydrobox ............... B-16 2.3. Ground source heat pump (GSHP) ....... B-22 2.4. Water to Water Heat Pump (WTW) ....... B-23 Performance data ..........B-24 3.1. Combination Performance ..........B-24 3.2.
  • Page 7 Contents Water to Water Heat Pump (WTW) ....B-208 7.1. Outlines and dimensions ..........B-208 7.2. Wiring diagrams ............B-210 7.3. DIP Switch Function(FTC) ...........B-211 7.4. Field wiring ..............B-212 7.5. Water circuit diagrams ..........B-220 7.6. Installation ..............B-224 7.7 System Set Up ............. B-233 7.8 Service and Maintenance ..........
  • Page 8 Specifications 2.4 Water to Water Heat Pump (WTW) Model name EHWT17D-MHEDW Dimensions Height 1750 Width Depth Casing Munsell 6.2PB 9/0.9 RAL code 260 90 05 Material Pre-coated metal Product weight (empty) Product weight (full) Gross weight Water volume of heating circuit in the unit *1 5.47...
  • Page 9 Performance data 3.4 Water to Water Heat Pump (WTW) EHWT17D-MHEDW Flow rate Ambient loop: 19.2 L/min Heating: 12.4 L/min W10W35 W10W45 W10W55 Capacity Capacity Capacity 100% 100% 100% Ambient loop: 14.4 L/min Heating: 12.4 L/min W15W35 W15W45 W15W55 Capacity Capacity...
  • Page 10 Performance data 3.5 Noise criterion curves Cylinder unit Hydrobox Pump speed (primary circuit): 5 Pump speed (sanitary circuit): 2 Pump speed: 5 Flow rate: 20L/min Flow rate: 20L/min SPL: 29dB SPL: 29dB NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE...
  • Page 11 Performance data Water to Water heat pump (WTW) Pump speed: 5 Flow rate: 20L/min SPL: 27dB NC-70 NC-60 NC-50 NC-40 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-20 1000 2000 4000 8000 BAND CENTRE FREQUENCIES, Hz B-37...
  • Page 12 Water to Water Heat Pump (WTW) Service access diagrams Service access Parameter Dimension (mm) c (distance behind unit not visible in Figure 7.1.2) 700** 150* <Table 7.1.2> * An additional space is required, when brine pipe connecting to the side. ** Including service space for Module removal.
  • Page 13 Water to Water Heat Pump (WTW) 7.2. Wiring diagrams EHWT17D-MHEDW CNPWM CN01 Immersion heater (1Ph3kW) (BK) (WH) Power supply to Immersion heater ~/N 230V 50Hz CNP1 TBO.1 (WH) <How to use TBO.1 to 4> ECB2 Connect them using either way as shown below.
  • Page 14 Water to Water Heat Pump (WTW) 7.3. DIP Switch Function(FTC) Located on the FTC printed circuit board are 6 sets of small white switches known as DIP switches. The DIP switch number is printed on the circuit board next to the relevant switches. The word ON is printed on the circuit board and on the DIP switch block itself.
  • Page 15 Water to Water Heat Pump (WTW) 7.4. Field wiring Locally supplied wiring should be inserted through the inlets situated on the top of the heat pump unit. (Refer to <Table 7.4.1 Electrical Connection 7.1.1>.) All electrical work should be carried out by a suitably quali- Wiring should be fed down the back right hand side of the fied technician.
  • Page 16 Water to Water Heat Pump (WTW) Affix label A that is included with the manuals near each wiring diagram for heat pump units. Wiring circuit Earth leak- breaker age circuit N.F. breaker Isolating Power supply *1 *2 switch ~/N 230 V 50 Hz To control board ECB2 Wiring circuit...
  • Page 17 Water to Water Heat Pump (WTW) 7.4.2 Connecting inputs/outputs CN01 TBO.1 (BK) CNP1 (WH) CN3C CNP4 TBO.2 (BU) (RD) LED1 Wiring specification and local supply parts CNPWM (WH) CNV1 Item Name Model and specifications CN851 TBO.3 (WH) (BK) Signal input Signal input Use sheathed vinyl coated cord or cable. CNRF function wire...
  • Page 18 Water to Water Heat Pump (WTW) Thermistor inputs Name Terminal block Connector Item Optional part model — CN20 Thermistor (Room temp.) (Option) PAC-SE41TS-E — CN21 Thermistor (Ref. liquid temp.) — THW1 — CNW12 1-2 Thermistor (Flow water temp.) — THW2 —...
  • Page 19 Water to Water Heat Pump (WTW) Outputs Terminal Max. total Name Connector Item Signal/Max current block current OUT1 TBO.1 1-2 CNP1 Water circulation pump 1 output (Space heating & DHW) 230V AC 0.6A Max. OUT2 TBO.1 3-4 — Water circulation pump 2 output (Space heating for Zone1) 230V AC 1.0A Max.
  • Page 20 Water to Water Heat Pump (WTW) 7.4.3 Wiring for 2-zone temperature control Connect the pipe work and locally supplied parts according to the relevant circuit diagram shown “7.5.3 Local system 1”. <Mixing valve> Connect the signal line to open Port A (hot water inlet port) to TBO.
  • Page 21 Water to Water Heat Pump (WTW) 7.4.5 Water circuit only operation (Indoor unit only operation) (during installation work) During installation work, once the primary and sanitary circuits are fully charged with water it may be flexible to engaged the electric heater to provide DHW (For UK only). * 1.
  • Page 22 (9) FTC supports FAT file system but not NTFS file system. terface in FTC. (10) Mitsubishi Electric is not liable for any damages, in whole Using an SD memory card can simplify main remote controller or in part, including failure of writing to an SD memory settings and can store operating logs.
  • Page 23 Water to Water Heat Pump (WTW) 7.5. Water circuit diagrams 7.5.1 Component Parts Component Parts <Overall> Part name DHW outlet pipe Cold water inlet pipe Water pipe (Space heating return connection (to heat pump)) Water pipe (Space heating flow connection (from heat pump)) Water/Brine pipe (Ambient loop return connection (to heat pump)) Water/Brine pipe (Ambient loop flow connection (from heat pump)) Control and electrical box...
  • Page 24 Model name EHWT17D-MHEDW 230V 50Hz, length 460 mm. Maximum supply pressure to the pressure reducing valve 16 bar Use only Mitsubishi Electric service Operating pressure (Sanitary side) 3.5 bar parts as a direct replacement. Expansion vessel charge setting pressure (Sanitary side) 3.5 bar...
  • Page 25 Water to Water Heat Pump (WTW) 7.5.3 Local system 1 1-zone temperature control Zone1 Zone1 2-zone temperature control 1-zone temperature control with boiler Zone1 Zone1 Zone2 2-zone temperature control with boiler 1-zone temperature control (2-zone valve ON/OFF control) Zone1 Zone1 Zone2 Zone2 1.
  • Page 26 Water to Water Heat Pump (WTW) 7.5.4 Local system 2 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 B-223...
  • Page 27 Water to Water Heat Pump (WTW) 7.6. Installation <Preparation before the installation and service> ● Prepare the proper tools. ● Prepare the proper protection. ● Allow parts to cool before attempting any maintenance. ● Provide adequate ventilation. ● After stopping the operation of the system, turn off the power-supply breaker and remove the power plug. ●...
  • Page 28 Water to Water Heat Pump (WTW) Room thermostat Ambient temperature thermistor (TH7) If fitting a new room thermostat for this system; Please install the ambient temperature thermistor (TH7) in a • Position it out of direct sunlight and draughts place where external influences such as wind and sunlight are •...
  • Page 29 Water to Water Heat Pump (WTW) 4. Pull the MODULE BOX out by using the MODULE HANDLES Frame Module handles 5. After pulling MODULE BOX out Fit the cap or plastic bag etc. (local supply) on flexible pipes. Please bundle the wires during transportation and secure them with band etc. on the module. * The module is then re-installed in reverse order.
  • Page 30 Water to Water Heat Pump (WTW) 7.6.2 Water/Ambient Loop Quality and System Preparation <Ambient loop> <Water> General General • The water in both primary and sanitary circuit should be clean • The water in both primary and sanitary circuit should be clean and with pH value of 6.5-8.0 and with pH value of 6.5-8.0 •...
  • Page 31 Water to Water Heat Pump (WTW) 7.6.3 Water Pipe Work Hot Water Pipework Pipework Connections Connections to the heat pump unit should be made using The heat pump unit is UNVENTED. When installing the 22 mm or 28 mm compression as appropriate. unvented hot water systems building regulations part G3 When connecting DHW pipes using compression fittings, (England and Wales), P3 (Scotland) and P5 (Northern...
  • Page 32 Water to Water Heat Pump (WTW) Sizing Expansion Vessels Expansion vessel volume must fit the local system water volume. Expansion vessel sizing To size an expansion vessel for the heating circuit the following formula and graph can be used. When the necessary expansion vessel volume exceeds the volume of an built-in expansion vessel, install an additional expansion vessel so that the sum of the volumes of the expansion...
  • Page 33 There must be no valve fitted between the expansion relief valve and the tank. Cold water inlet *A EHWT17D-MHEDW is equipped with T & P relief valve on the tank (2). Other models are equipped with Pressure relief valve, fitted to the DHW pipework (3).
  • Page 34 Water to Water Heat Pump (WTW) 7.6.6 Safety Device Discharge Arrangements (G3) The following instructions are a requirement of UK Building Regulations i. Ideally below a fixed grating and above the water seal in a trapped gully. and must be adhered to. For other countries please refer to local legisla- tion.
  • Page 35 Water to Water Heat Pump (WTW) 7.6.7 Ambient Loop Pipe Work Pipework Connections How to install PICV (Pressure Independent Connections to the heat pump unit should be made using Control Valve) the 22 mm compression as appropriate. PICV should be installed on the Ambient loop pipe in order to When connecting Ambient Loop pipes using compression balance water or brine in Ambient loop.
  • Page 36 This facility is accessed via password protected service menus. To provide the best efficiency Mitsubishi Electric recommends using automatic adaptation function based on room temperature. To use this function a room thermistor needs to be present in a main living area. This can be done in a number of ways the most convenient are detailed below.
  • Page 37 Water to Water Heat Pump (WTW) 1-zone temperature control Control option A Wireless This option features the main remote controller and the Mitsubishi remote controller Wireless receiver Electric wireless remote controller. The wireless remote controller (option) (option) is used to monitor room temperature and can be used to make changes to the space heating settings, boost DHW and switch to holiday mode without having to directly use the main remote 20.0°C...
  • Page 38 Zone1, it is wired to IN1 on TBI.1.) (Refer to 7.4.2.) Control option B This option features the main remote controller, the Mitsubishi Electric thermistor and a locally supplied thermostat that are wired to FTC. The thermistor is used to monitor the Zone1 room temperature and the thermostat is used to control the Zone2 room temperature.
  • Page 39 Water to Water Heat Pump (WTW) Control option C This option features the main remote controller (with in-built thermis- tor) that is removed from the heat pump unit to monitor the Zone1 room temperature and a locally supplied thermostat to monitor the Zone2 room temperature.
  • Page 40 Water to Water Heat Pump (WTW) 7.7.2 Main remote controller <Main remote controller parts> Letter Name Function Screen Screen in which all information is displayed. Menu Access to system settings for initial set up and modifications. Back Return to previous menu. Confirm Used to select or save.
  • Page 41 Water to Water Heat Pump (WTW) General Operation In general operation the screen displayed on the main remote control- ler will be shown as in the figure on the right. This screen shows the target temperature, space heating mode, DHW mode, any additional heat sources being used, holiday mode, and the date and time.
  • Page 42 Water to Water Heat Pump (WTW) 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;...
  • Page 43 Water to Water Heat Pump (WTW) <Room sensor settings> For room sensor settings it is important to choose the correct room sensor depending on the heating mode the system will operate in. 1. From the Initial settings menu select Room sensor settings. 2.
  • Page 44 Water to Water Heat Pump (WTW) <Main Remote Controller Menu Tree> Unrestricted access Initial Installer only Main screen * Short press for 1 Zone system. Long press Information Option Forced DHW ON ( )/OFF ON ( )/Prohibited ( )/Timer ( ) Heating ON ( )/Prohibited ( )/Timer ( ) Menu...
  • Page 45 Water to Water Heat Pump (WTW) <Continued from the previous page.> Unrestricted access <Main Remote Controller Menu Tree> Installer only Initial Main screen Main Long press menu yyyy/mm/dd/hh:mm Date/Time Menu Initial Language EN/FR/DE/SV/ES/IT/DA/NL/FI/NO/PT/BG/PL/CZ/RU/TR/SL settings Summer time OFF/ON Temp. display OFF/Room/Tank/Room&Tank Contact number Sensor TH1/Main RC/...
  • Page 46 Water to Water Heat Pump (WTW) <Continued from the previous page.> Unrestricted access <Main Remote Controller Menu Tree> Installer only Initial Main screen Long press Main menu ON/OFF Operation Menu Smart grid ready settings Target temp. Service Password ON/OFF protected Heating Target temp.
  • Page 47 Water to Water Heat Pump (WTW) Domestic Hot Water (DHW)/Legionella Prevention The domestic hot water and legionella prevention menus control the operation of DHW tank heat ups. <DHW mode settings> 1. Highlight the hot water icon and press CONFIRM. 2. Use button F1 to switch between Normal and Eco heating modes. 3.
  • Page 48 Water to Water Heat Pump (WTW) Legionella Prevention Mode settings (LP mode) 1. Use button F3 to choose legionella mode active YES/NO. 2. To edit the legionella function, press down the MENU button for 3 sec- onds and select “hot water”, then press F4 key. 3.
  • Page 49 Water to Water Heat Pump (WTW) Heating The heating menus deal with space heating using normally ei- ther a radiator, fan-coil, or underfloor heating system depend- ing on the installation. There are 3 heating modes Heating room temp. (Auto adaptation) ( ●...
  • Page 50 Water to Water Heat Pump (WTW) Holiday Mode Holiday mode can be used to keep the system running at lower flow temperatures and thus reduced power usage whilst the property is unoccupied. Holiday mode can run either flow temp., room temp., heating, compensation curve heating and DHW all at reduced flow temperatures to save energy if the occupier is absent.
  • Page 51 Water to Water Heat Pump (WTW) The preview screen allows you to view the current settings. Days of the week are displayed across the top of the screen. Where day appears underlined the settings are the same for all those days underlined. Hours of the day and night are represented as a bar across the main part of the screen.
  • Page 52 Water to Water Heat Pump (WTW) Service Menu The service menu provides functions for use by installer or service engineer. It is NOT intended the home owner alters settings within this menu. It is for this reason password protection is required to prevent unauthorised access to the service settings. The factory default password is "0000".
  • Page 53 Water to Water Heat Pump (WTW) <Auxiliary settings> This function is used to set the parameters for any auxiliary parts used in the system Menu subtitle Function/ Description Economy settings Water pump stops automatically a specified period of time from for pump when operation is finished.
  • Page 54 Water to Water Heat Pump (WTW) Freeze stat function Menu subtitle Function/ Description Freeze stat 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 Minimum outdoor ambient temperature which freeze stat function will begin to operate, temp.
  • Page 55 Water to Water Heat Pump (WTW) Floor dry up function Target flow temp. (°C ) The Floor dry up function automatically changes the target hot water temperature in stages to gradually dry concrete when this particular type of underfloor heating system is installed. Upon completion of the operation the system stops all the op- erations except the Freeze stat.
  • Page 56 Water to Water Heat Pump (WTW) (2) Actual measurement by external meter (locally supplied) FTC has external input terminals for 2 ‘Electric energy meters’ and a ‘Heat meter’. If two ‘Electric energy meters’ are connected, the 2 recorded values will be combined at the FTC and shown on the main remote controller.
  • Page 57 Water to Water Heat Pump (WTW) 7.7.3 DIP Switch Function Located on the C.B. printed circuit board are 7 sets of small white switches known as DIP switches. The DIP switch number is print- ed on the circuit board next to the relevant switches. The word ON is printed on the circuit board and on the DIP switch block itself. To move the switch you will need to use a pin or the corner of a thin metal ruler or similar.
  • Page 58 7.8 Service and Maintenance The heat pump unit must be serviced once a year by a qualified individual. Servicing and maintenance of the outdoor unit should only be done by a Mitsubishi Electric trained technician with relevant qualifications and experience. Any electrical work should be done by a trades person with the appropriate electrical qualifica-tions. Any maintenance or ‘DIY’...
  • Page 59 Contact your Mitsubishi Electric dealer. 7. Immersion heater cut-out tripped. 7. Check immersion heater thermostat and press reset button, located on im- mersion heater boss, if safe.
  • Page 60 Contact your Mitsubishi Electric dealer. 8. Incorrectly sized heat emitter. 8. Check the heat emitter surface area is adequate Increase size if necessary.
  • Page 61 Water to Water Heat Pump (WTW) Fault symptom Possible cause Explanation - Solution Noise during hot water Loose airing cupboard pipework. Install extra pipe fastening clips. draw off typically Heaters switching on/off. Normal operation no action necessary. worse in the morning. Mechanical noise Heaters switching on/off.
  • Page 62 Water to Water Heat Pump (WTW) Error Codes (FTC) Code Error Action Flow rate may be reduced. Check for; • Water leakage Circulation water temperature overheat protection • Strainer blockage • Water circulation pump function (Error code may display during fill- ing of primary circuit, complete filling and reset error code.) DHW tank water temperature overheat protection Check the immersion heater and it’s contactor.
  • Page 63 Water to Water Heat Pump (WTW) Error Codes (C.B.) Code Error Cause Action No voltage is supplied to terminal block Check following items. (TB1) of heat pump unit. a) Power supply breaker a) Power supply breaker is turned off. b) Connection of power supply terminal b) Contact failure or disconnection of block (TB1) power supply terminal...
  • Page 64 Water to Water Heat Pump (WTW) Code Error Cause Action High discharge temperature Overheated compressor operation Check intake superheat. (1) Abnormal if TH4 exceeds caused by shortage of refrigerant Check leakage of refrigerant. 125°C or 110°C continuously Charge additional refrigerant. for 5 minutes.
  • Page 65 Water to Water Heat Pump (WTW) Code Error Cause Action Too low superheat due to low Disconnection or loose connection Check the installation conditions of discharge temperature of discharge temperature thermistor discharge temperature thermistor Abnormal if discharge superheat is (TH4) (TH4).
  • Page 66 It is essential that the heat pump is serviced at least once a year by a qualified individual. 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.
  • Page 67 Water to Water Heat Pump (WTW) Engineers Forms Should settings be changed from default, please enter and record new setting in ‘Field Setting’ column. This will ease resetting in the future should the system use change or the circuit board need to be replaced. Commissioning/Field settings record sheet Default Field...
  • Page 68 Water to Water Heat Pump (WTW) Engineers Forms Commissioning/Field settings record sheet (continued from the previous page) Default Field Main remote controller screen Parameters Notes setting setting Setting Service Thermistor THW1 −10°C to +10°C 0°C adjustment menu THW2 −10°C to +10°C 0°C THW5A −10°C to +10°C...
  • Page 69 Water to Water Heat Pump (WTW) Engineers Forms Commissioning/Field settings record sheet (continued from the previous page) Default Field Main remote controller screen Parameters Notes setting setting Setting Service Operation Smart grid On/Off menu settings ready Target temp (+1 to +20°C) / -- (Non active) Heating On/Off Target temp.
  • Page 70 2. Go to Service menu > Operation settings > Boiler settings to make detailed settings for “Hybrid” above . *4 The “Hybrid” automatically switches heat sources between Heat pump (and Electric heater) and boiler. Product fiche of temperature control (a) Supplier's name: MITSUBISHI ELECTRIC CORPORATION (b) Supplier's model identifier: PAR-WT50R-E and PAR-WR51R-E (c) The class of the temperature control:...
  • Page 71 MEMO...
  • Page 72 Contents Optional parts list ..........D-2 ATW Wireless System .........D-12 1. Safety Precautions ............D-12 2. Accessories and Installation Tool ........D-13 3. Before using ATW Wireless System......... D-13 4. Installing Wireless Receiver ..........D-14 5. Pairing process ..............D-19 6. Setting wireless remote controllers ........D-20 7.
  • Page 73 Optional parts list Optional parts Packaged model <Indoor unit (Cylinder unit)> Cylinder unit Parts name Model name Specification EHPT17X- EHPT17X- EHPT17X- ERPT17X- EHPT20X- EHPT20X- EHPT20X- EHPT20X- VM2D VM6D YM9D VM2D VM6D YM9D YM9ED Wireless remote controller PAR-WT50R-E × × × ×...
  • Page 74 Optional parts list Optional parts <Outdoor unit> Power Inverter Parts name Model name PUZ-WM85V/ PUZ-WM112V/ PUZ-HWM140V/ PUZ-WM50VHA(-BS) PUZ-WM60VAA(-BS) YAA(-BS) YAA(-BS) YHA(-BS) × × × × × Connector for Drain Hose Heater PAC-SE60RA-E Signal Output PAC-SE61RA-E Air discharge Guide MAC-886SG-E PAC-SJ07SG-E ×...
  • Page 75 Optional parts list Optional parts CONTENTS Contents Parts name Model name Q’ty Air discharge guide MAC-886SG-E Air discharge guide Screw Air discharge guide PAC-SJ07SG-E Support (For right and left) Attachment screw(5×10) Attachment screw(4×10) PAC-SG59SG-E Air discharge guide Attachment screw(5×35) Spacer PAC-SH96SG-E Air discharge guide Support...
  • Page 76 Optional parts list Optional parts Parts name Model name Contents Q’ty Wi-Fi interface MAC-587IF-E Interface unit (with connecting cable) Fixing screw 3.5×16 mm Fixing screw 4×16 mm Mounting cord clamp Fastener (for bundling the wires) Holder Clip Pressure sensor PAC-PS01-E Pressure sensor Flow sensor PAC-FS01-E...
  • Page 77 Optional parts list Optional parts Split model <Indoor unit (Cylinder unit)> Cylinder unit Parts name Model name Specification EHST17D- ERST17D- ERST17D- ERST17D- ERST17D- EHST20D- EHST20D- EHST20D- VM2D VM2D VM2BD VM6BD YM9BD VM2D VM6D Wireless remote controller PAR-WT50R-E × × × ×...
  • Page 78 Optional parts list Optional parts Cylinder unit Parts name Model name Specification ERST20D- EHST30D- EHST30D- EHST30D- EHST30D- ERST30D- VM2D VM6ED YM9ED TM9ED VM2ED Wireless remote controller PAR-WT50R-E × × × × × × × × × × × × Wireless receiver PAR-WR51R-E Thermistors ×...
  • Page 79 Optional parts list Optional parts <Indoor unit (Hydrobox)> Hydrobox Parts name Model name Specification EHSD- EHSD- EHSD- EHSD- EHSD- EHSD- ERSD- ERSD- VM2D VM6D YM9D YM9ED TM9D VM2D × × × × × × × × PAR-WT50R-E Wireless remote controller ×...
  • Page 80 Optional parts list Optional parts <Outdoor unit> Eco Inverter Power Inverter Parts name Model name PUD-SWM80VAA PUD-SWM100VAA PUD-SWM120VAA SUZ-SWM40VA SUZ-SWM60VA SUZ-SWM80VA PUD-SWM60VAA PUD-SWM80YAA PUD-SWM100YAA PUD-SWM120YAA × × × × Connector for Drain Hose PAC-SE60RA-E ― ― ― Heater Signal Output PAC-SE61RA-E ―...
  • Page 81 Optional parts list Optional parts <Interface/Flow temperature control> Eco Inverter Power Inverter Parts name Model name Specification PUD-SWM80VAA PUD-SWM100VAA PUD-SWM120VAA SUZ-SWM40VA SUZ-SWM60VA SUZ-SWM80VA PUD-SWM60VAA PUD-SWM80YAA PUD-SWM100YAA PUD-SWM120YAA Flow Temperature PAC-IF033B-E 1 PC Board w/ Case ― ― ― ― ― ―...
  • Page 82 Optional parts list Optional parts Parts name Model name Contents Q’ty Drain socket PAC-SG61DS-E Drain socket Drain cap (φ33) Heat insulator Band Drain socket PAC-SJ08DS-E Centralized drain pan PAC-SG63DP-E Centralized drain pan PAC-SG64DP-E Centralized drain pan Centralized drain pan PAC-SH97DP-E PAC-SJ83DP-E Centralized drain pan Control/Service tool...
  • Page 83 ATW Wireless System Optional parts Wireless Remote Controller and Receiver PAR-WT50R-E PAR-WR51R-E This manual explains installation of the PAR-WR51R-E wireless receiver and the PAR-WT50R-E wireless remote controller, and settings of these devices. Before installing the devices, read this manual thoroughly. After reading, be sure to hand this manual to the user.
  • Page 84 2006/66/EC Article 20 Information for end-users and Annex II. Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components which can be re- cycled and/or reused. This symbol means that electrical and electronic equipment, batteries and accumulators, at their end-of-life, should be disposed of separately from your household waste.
  • Page 85 ATW Wireless System Optional parts Use the main controller to set the ecodan system to the room temp. ( ) mode. When the flow temp. ( ) mode or the compensation curve ( ) mode is selected, the wireless remote controller will oper- ate as a thermostat.
  • Page 86 ATW Wireless System Optional parts Route the cable out the back of the control and electrical box, Control and and run the cable into the box Control board electrical box through the shown inlet in the underside of the box. Control and electrical box Connect the cable connector to...
  • Page 87 ATW Wireless System Optional parts Check the maximum reach of the cable and install the bracket on the wall with screws. Do not excessively pull the cable when checking the maximum reach. <Notice> ● Do not overtighten the screws. ►The bracket may deform or break. ●...
  • Page 88 ATW Wireless System Optional parts 4.2 Connecting to Hydrobox * Before installation, be sure to turn off the main power supply. Remove the two screws that hold the front panel, and remove the panel. Front panel Screws (2 positions) Route the receiver's cable into the hydrobox through the leftmost in- let at the bottom of the unit.
  • Page 89 ATW Wireless System Optional parts Check the maximum reach of the cable and install the bracket with screws. Do not excessively pull the cable when measuring the maxi- mum reach. <Notice> ● Do not overtighten the screws. ►The bracket may deform or break. ●...
  • Page 90 ATW Wireless System Optional parts 5. Pairing process ● If the wireless remote controller is not paired, the indoor unit cannot be operated using the remote controller. ● Before using the wireless remote controllers, always ensure to go through a pairing process. ●...
  • Page 91 ATW Wireless System Optional parts <Pairing is unsuccessful> When " " appears on the remote controller and green LED on the wireless receiver blinks , correctly repeat the same process from step 5. Even if the pairing process failed, the wireless receiver stays in the pairing mode for 5 minutes unless cancelled.
  • Page 92 ATW Wireless System Optional parts 6.1. Viewing Address Number (Mode No. 0) Set the mode no. to “0”. The display to the right shows that the address is set to “2”. 6.2. Pairing (Mode No. 1) For details, refer to “6. Pairing process”. 6.3.
  • Page 93 ATW Wireless System Optional parts When the indoor unit is operating, the room temperature display shows the actual room temperature (18°C) below and the set temperature (20°C) above as shown in the figure to the right. The measurable temperature range is from 0°C to 40°C. If the measured room temperature is out of 0°C to 40°C range, the room temperature display blinks.
  • Page 94 ATW Wireless System Optional parts 7. Wireless Receiver Operation The wireless receiver is powered by indoor unit. It communicates with the wireless remote controller(s), and transmits to the indoor unit the operation status and commands received from the wireless remote controller(s). The wireless receiver has two modes available: pairing mode and pairing reset mode.
  • Page 95 ATW Wireless System Optional parts 7.2. Turning on Power Power ON When the wireless receiver is powered by indoor unit after installation, green LED and orange LED blink for 3 seconds. 7.3. Wireless Receiver Functions Not paired (1) Normal mode When the wireless receiver is paired with a wireless remote controller, green LED comes on.
  • Page 96 ATW Wireless System Optional parts 8. Q &A Answers Questions How many wireless remote controllers are Up to 8 controllers. allowed to be paired? What should be noted about Pairing? • The same address cannot be assigned to multiple remote controllers •...
  • Page 97 Dimension (W×H×D) 100 mm × 80 mm × 30 mm Product fiche of temperature control (a) Supplier’s name: MITSUBISHI ELECTRIC CORPORATION (b) Supplier’s model identifier: PAR-WT50R-E and PAR-WR51R-E (c) The class of the temperature control: (d) The contribution of the temperature control to seasonal space heating energy efficiency: 4%...
  • Page 98 Immersion Heater Optional parts ATW/BTW UNIT OPTIONAL PARTS IMMERSION HEATER (1Ph 1/3kW) PAC-IH01V2-E / PAC-IH03V2-E INSTALLATION MANUAL ● Before starting installation, read the following description together with the installation manual included with the ATW/BTW unit. ● Please read carefully and observe fully the following safety precautions. WARNING Precaution that must be observed to prevent injuries or death.
  • Page 99 Immersion Heater Optional parts Contents Item Piece Immersion heater Thermostat (High limit thermal cut-out) Tab cover Earth leakage breaker Screw (4×25) Relay Screw (4×16) Label (for Earth leakage breaker) Label (for Relay) Lead wire with connector Lead wire (Red, 130mm) Lead wire (Blue, 130mm) Lead wire (Red, 1500mm) Lead wire (Blue, 1500mm)
  • Page 100 Immersion Heater Optional parts <ATW unit> Refer to the Make sure that no water is Adjust the position of the immersion installation in the tank before installing heater so that the thermostat pockets are manual of the the immersion heater. located at the upper right and lower left ATW unit for Remove the back nut with...
  • Page 101 Immersion Heater Optional parts Attach the water-proof cover as shown in the figure. Attach the water-proof seals on the terminal screws to seal them while passing the lead wires through the slits of the water-proof seals. Do not bundle the lead wires Recommended torque = 1.2 N•m together with the low voltage wires, such as the main remote controller wires.
  • Page 102 Immersion Heater Optional parts <BTW unit> Make sure that no water is in Remove the screws. the tank before installing the Refer to the installation manual Remove immersion heater. Remove the the screws. of the BTW unit for the front back nut with the tool panel removal.
  • Page 103 Immersion Heater Optional parts Fix it to the wires Fasten the lead wire. To immersion heater Recommended torque = 1 N•m Recommended torque = 1.5 N•m DIP Switch 1-4 OFF→ON (without immersion heater Recommended torque = 1.2 N•m →with immersion heater) Attach the water-proof cover as shown in the...
  • Page 104 EHPT Accessories for UK Optional parts CYLINDER UNIT OPTIONAL PARTS EHPT ACCESSORIES for UK PAC-WK02UK-E INSTALLATION MANUAL ● Before starting installation, read the following description together with the installation manual included with the cylinder unit. ● Please read carefully and observe fully the following safety precautions. WARNING Precautions that must be observed to prevent injuries or death.
  • Page 105 EHPT Accessories for UK Optional parts Contents Item Piece(s) The parts are provided to meet the requirements for the UK Unvented inlet control group (Pressure Building Regulation G3. reducing valve/strainer/check valves/ The parts are accessory parts for the unvented inlet control expansion relief valve).
  • Page 106 EHPT Accessories for UK Optional parts Installation Carefully follow these instructions and ensure that the installation conforms to UK Building Regulation G3 and the Water Supply Regulations. Unvented inlet control group (ICG) Item Component Pressure reducing valve Manifold block (Including check valve) 22mm balanced cold water take-off Pressure gauge port 3/4"...
  • Page 107 EHPT Accessories for UK Optional parts The procedure and recommendations specified in the cylinder unit installation manual for filling and pressurising the primary heating circuit of the cylinder unit must be followed. The heating return pipe and the cold water supply pipe must be provided with tees with a short length of R250 (half hard) copper tube in the side port.
  • Page 108 HIGH TEMP. THERMISTOR Optional parts PARTS NAME : HIGH TEMP. THERMISTOR PARTS No. : PAC-TH012HT-E SALES MODEL CODE : 7H1THR7 INSTALLATION MANUAL ● Before starting installation, read the following description together with the installation manual included with the unit. ● Please read carefully and observe fully the following safety precautions. WARNING Precautions that must be observed to prevent injuries or death.
  • Page 109 HIGH TEMP. THERMISTOR Optional parts 1. Boiler operation FTC can control boiler only in space heating mode. When boiler is running, the heating operation is regulated by the room thermostat connected to FTC. IMPORTANT NOTE: Be sure to connect room thermostat to FTC. 1.1 Wiring for boiler control <Thermistor inputs>...
  • Page 110 HIGH TEMP. THERMISTOR Optional parts 2. Buffer tank control Buffer tank control operates when heating (or cooling) function is active in the smart grid ready*. * Refer to the installation manual of indoor unit. 2.1 Wiring for buffer tank control <Thermistor inputs>...
  • Page 111 HIGH TEMP. THERMISTOR Optional parts PARTS NAME : HIGH TEMP. THERMISTOR PARTS No. : PAC-TH012HTL-E SALES MODEL CODE : 7H1THR8 INSTALLATION MANUAL ● Before starting installation, read the following description together with the installation manual included with the unit. ● Please read carefully and observe fully the following safety precautions. WARNING Precautions that must be observed to prevent injuries or death.
  • Page 112 HIGH TEMP. THERMISTOR Optional parts 1. Boiler operation FTC can control boiler only in space heating mode. When boiler is running, the heating operation is regulated by the room thermostat connected to FTC. IMPORTANT NOTE: Be sure to connect room thermostat to FTC. 1.1 Wiring for boiler control <Thermistor inputs>...
  • Page 113 HIGH TEMP. THERMISTOR Optional parts 2. Buffer tank control Buffer tank control operates when heating (or cooling) function is active in the smart grid ready*. * Refer to the installation manual of indoor unit. 2.1 Wiring for buffer tank control <Thermistor inputs>...
  • Page 114 2 ZONE KIT Optional parts ATW INDOOR UNIT OPTIONAL PARTS 2 ZONE KIT PAC-TZ02-E INSTALLATION MANUAL ● This 2 zone kit MUST be used with Cylinder unit or Hydrobox except for E * SE models. ● Before starting installation, read the following description together with the installation manual included with the Cylinder unit (Hydrobox). ●...
  • Page 115 2006/66/EC Article 20 Information for end-users and Annex II. Your Mitsubishi Electric heating system products have been manufactured with high quality materials and components which can be recycled and/or reused. The symbol in Figure 1.1 means that electrical and electronic equipment, batteries and accumulators at the end of their life, should be disposed of separately from your household waste.
  • Page 116 2 ZONE KIT Optional parts Component parts Pump3 Pump2 Mixing valve Thermistor Manual air vent Reactor box Earth terminal Thermistor Installation position Unit: mm <Cylinder unit> <Hydrobox> min300 for service access Water circuit and system figure 2 zone kit <Zone2> Cylinder unit Mixing Pump3...
  • Page 117 2 ZONE KIT Optional parts In the case of Cylinder unit Ensure that the 2 zone kit does not touch the pressure relief valve. Remove the screw from the 2 zone kit and reuse to secure In the case of Cylinder unit After hand tighten the nut, tighten the joint 1 turn.
  • Page 118 2 ZONE KIT Optional parts In the case of Hydrobox Remove the back plate from Install the included the top of the 2-zone kit. back plate accessory. Back plate <Side view> ● Ensure that the notch is positioned at the TOP of the back Back plate plate.
  • Page 119 2 ZONE KIT Optional parts In the case of Hydrobox Heating only model <View from below> Heating only model After hand tighten the nut, tighten the joint 1 turn. Heating and cooling model If necessary, tighten by another 1/4 of a turn. Pipe cover Letter Pipe description (Local supply)
  • Page 120 2 ZONE KIT Optional parts Wiring <Cylinder unit> <Hydrobox> Earth terminal TBO.1 CN01 (BK) CNP1 (WH) CN3C CNP4 TBO.2 (BU) (RD) LED1 CNPWM (WH) CNV1 TBO.3 CN851 (WH) (BK) Pump/ CNRF (WH) LED2 THW6/7/8/9 TBO.4 CN105 (RD) LED3 Mixing valve/ CNIT (BU) CNIH...
  • Page 121 2 ZONE KIT Optional parts DIP Switch settings of Cylinder unit (Hydrobox) Setting the following DIP switches are necessary for 2 zone control. (See the installation manual of Cylinder unit (Hydrobox) for more information.) DIP switch Function Setting when using 2 zone kit SW2-6 Mixing tank WITHOUT Mixing tank WITH Mixing tank...
  • Page 122 2 ZONE KIT Optional parts Pump setting selection You can check the setting by pressing the push button. If you presS the button for 2 to 10 seconds, the user interface switches to “setting selection” if the user interface is unlocked. You can change the settings as below table.
  • Page 123 2 ZONE KIT Optional parts CP: Constant Pressure The head (pressure) is kept constant, irrespective of the heat demand. CP1: lowest constant pressure curve CP2: intermediate constant pressure curve CP3: highest constant pressure curve CP Auto Adapt: highest to lowest constant pressure curve 　The Auto Adapt function enables the circulator to adjust the pump performance 　automatically to the size of the system or the variations in load over time.
  • Page 124 PRESSURE SENSOR Optional parts PARTS NAME : PRESSURE SENSOR PARTS No. : PAC-PS01-E SALES MODEL CODE : 7H1PS01 INSTALLATION MANUAL ● Before starting installation, read the following description together with the installation manual included with the unit. ● Please read carefully and observe fully the following safety precautions. WARNING Precautions that must be observed to prevent injuries or death.
  • Page 125 PRESSURE SENSOR Optional parts 1. Pipe work Install the pressure sensor following the Note below. <Recommend setting> Ø6.35, h: 3mm burring Ø6.35 ± 0.1 Piping (Ø8) <Note> ▪ Install the sensor within 0.4 m from the plate heat exchanger. ▪ When brazing the pipe, keep the temperature around the cap at 100 °C or lower. Failure to do so could impair waterproof per- formance of the pressure sensor.
  • Page 126 FLOW SENSOR Optional parts PARTS NAME : FLOW SENSOR PARTS No. : PAC-FS01-E SALES MODEL CODE : 7H1FS01 INSTALLATION MANUAL ● Before starting installation, read the following description together with the installation manual included with the unit. ● Please read carefully and observe fully the following safety precautions. WARNING Precautions that must be observed to prevent injuries or death.
  • Page 127 FLOW SENSOR Optional parts 1.Installation The unit can be installed in both horizontal as well as vertical pipelines. The flow sensor is only suitable for use in fully filled piping. Possibility of bubble formation ・ Possibility of drain-off (measuring pipe partly filled) ・...
  • Page 129 HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Issued in May 2022 M-P0798E SIZ2008<MEE> Specifications are subject to change without notice.
  • Page 130 Related Links Model Number: EHWT17D-MHEDW Commercial Heating Brochure Ecodan Hydrodan Databook (M-P0798E SIZ2008) Ecodan Hydrodan EHWT17D-MHEDW Declaration of Conformity UK2022C05 Ecodan Hydrodan EHWT17D-MHEDW Installation Manual RK79D203K01 Ecodan Hydrodan EHWT17D-MHEDW Operation Manual RK79D204K01 Ecodan Hydrodan EHWT17D-MHEDW Parts Catalogue OCB762 Ecodan Hydrodan Infographic...