Mitsubishi Electric ecodan EHPT20Q-VM2EA User Manual Download

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CYLINDER UNIT

EHPT20Q-VM2EA

INSTALLATION MANUAL

For safe and correct use, read this Manual and the outdoor unit installation manual thoroughly
before installing the cylinder unit.

This Installation Manual should be kept safe with the unit or in an accessible place for future
reference.

Cylinder unit "EHPT20Q-VM2EA" is compatible only with the outdoor unit (Model name :
QUHZ-W40VA)

FOR

INSTALLER

Summary of Contents for ecodan EHPT20Q-VM2EA

Page 1: ... the outdoor unit installation manual thoroughly before installing the cylinder unit This Installation Manual should be kept safe with the unit or in an accessible place for future reference Cylinder unit EHPT20Q VM2EA is compatible only with the outdoor unit Model name QUHZ W40VA FOR INSTALLER ...

Page 2: ...orrect voltage and circuit breakers MUST be used Wiring should be in accordance with national wiring regulations Connections MUST be made securely and without tension on the terminals Earth unit correctly Keep children and pets away from both the cylinder unit and outdoor unit Do not use the hot water produced by the heat pump directly for drinking or cooking This could cause illness to the user D...

Page 3: ... device 42 72 C 80 C 3 0 bar 300 kPa 90 C 121 C Control thermistor THW1 Control thermistor THW3 Pressure relief valve 2 No devices Min flow 1 3 L min 90 C Flow sensor Manual reset thermostat Manual reset thermostat Thermal Cut out for dry run prevention Water circuit Thermal store tank Booster heater Primary circuit circulating pump Grundfos Solar PML 25 145 180 Thermal store and space heating Hot...

Page 4: ...lling loop Ball valves check valves and flexible hose Accessory item Thermo mix valve recommended Local supply 39 Drain cock HEX Primary circuit 24 EHPT20Q VM2EA Note Ű Component Parts Figure 3 1 6 F D E B A 10 11 9 18 2 4 5 3 15 14 12 25 20 C 1 13 7 16 26 8 19 31 23 24 10 Make sure to correctly install the Mitsubishi Electric Accessory Parts e g Primary expansion vessel Tundish and Filling loop i...

Page 5: ...ing valve Local supply 33 Thermo mix valve recommended Local supply 34 Magnetic filter recommended Local supply 35 Strainer Local supply nlet 0DLQV ZDWHU VXSSO Outlet DHW 18 1 2XWGRRU 8QLW 48 9 㻖䠖 Locally suSSlieG Water SLSe 13 19 27 1 2 21 22 23 3 2 11 7 12 27 3 8 6 29 32 32 32 33 32 32 9 3D 12 3 17 16 Local system 1 HEX OLQGHU 8QLW 37 4 90 7R Grain 7R Grain OH LEOH KRVH 7HPSRUDU FRQQHFWLRQ 0DLQV...

Page 6: ...are observed Figure 4 1 2 6HFXUH WKH F OLQGHU XQLW WR SUHYHQW it from potentially being NQRFNHG RYHU Ű Transportation and Handling Ű Suitable Location Ű Service access diagrams 300 10 6XIILFLHQW VSDFH 0867 EH OHIW IRU WKH SURYLVLRQ RI GLVFKDUJH SLSHZRUN DV GHWDLOHG LQ 1DWLRQDO DQG RFDO XLOGLQJ 5HJXODWLRQV 7KH F OLQGHU XQLW PXVW EH ORFDWHG LQGRRUV DQG LQ D IURVW IUHH HQYLURQPHQW IRU H DPSOH LQ D XW...

Page 7: ...QW water from dripping on to the pump during the air bleeding operation 2SHQ WKH GUDLQ FRFN RI WKH PDQXDO DLU YHQW and discharge the air 2SHQ D tap and confirm that hot water is supplied after approximately 30 minutes from the beginning of thermal store operation Note If the air is not sufficiently discharged hot water is not supplied and an error occurs Continue to discharge the air until smooth ...

Page 8: ...ave 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 arrangements are Discharge below fixed grating Point 4 D gives alternative points of discharge Note The discharge will consist of scalding water and steam Asphalt r...

Page 9: ...ts 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 To move the switch you will need to use a pin or the corner of a thin metal ruler or similar DIP switch settings are listed below in Table 5 1 1 Before changing any switch settings ensure ...

Page 10: ...Those values can be set by the main controller Refer to the menu tree in 5 7 Main Controller Wiring specification and local supply parts Model and specifications 1 Connectable electric energy meter and heat meter LED1 CN01 WHT CN3C YLW CN20 RED CN22 BLU 1 5 CNIT BLU 1 5 CN105 RED 1 5 CNRF WHT CNW5 WHT CNW12 RED CNW3 BLU CN2B YLW CN2A BLU 1 3 CNPWM3 RED 1 3 CNPWM WHT 1 4 CN1A WHT 1 2 4 6 1 2 1 5 1 ...

Page 11: ...shi Electric wireless remote controller The wireless remote controller 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 controller If more than one wireless remote controller is used the most recently requested temperature setting will commonly be applied to all rooms by th...

Page 12: ...em 10 Mitsubishi Electric is not liable for any damages in whole or in part including failure of writing to an SD memory card and corruption and loss of the saved data or the like Back up saved data as necessary 11 Do not touch any electronic parts on the FTC control board when inserting or ejecting an SD memory card or else the control board could fail To avoid cutting fingers do not touch sharp ...

Page 13: ...two access levels to the main settings and the service section menu is password protected Ű Main Settings Menu 25 EDIT DHW F2 Main Controller Menu Tree Unrestricted access Installer only Main menu Main menu Main screen Initial Information Option F1 F4 Forced DHW Hot Water DHW See section See section See section See section See section Menu Long Press Short Press Heating Holiday mode Initial settin...

Page 14: ... LFRQ ZLOO GHOHWH WKH ODVW XQVDYHG DFWLRQ W LV QHFHVVDU WR XVH WKH 6 9 IXQFWLRQ EXWWRQ WR VDYH VHWWLQJV 21 50 GRHV QRW DFW DV 6 9 IRU WKLV PHQX DWH 7LPH 6XPPHU WLPH 7HPS GLVSOD RQWDFW QXPEHU 7LPH GLVSOD 5RRP VHQVRU VHWWLQJV KHQ RQH YDOYH RQ RII FRQWURO LV DFWLYH DQG ZLUHOHVV UHPRWH FRQWUROOHUV DUH DYDLODEOH IURP 5RRP 5 RQH VHOHFW VFUHHQ select zone 1R WR DVVLJQ WR HDFK UHPRWH FRQWUROOHU URP VHQVRU...

Page 15: ...considered before selection 29 System Set Up 5 Operation settings Heating operation 1 Heating operation for auto adaptation mode Menu subtitle Function Range Unit Default Flow temp range Minimum temp To minimize the loss by frequent ON and OFF in mild outdoor ambient temperature seasons To set max possible flow temperature according to the type of heat emitters Allows heat pump operation until the...

Page 16: ... for use with PC tool is necessary for the setting Should you wish to restore the factory settings at any time you should use the manual reset function However please note this will reset ALL functions to the factory default settings 1 From the main settings menu scroll down the functions until Service Menu is highlighted 2 Press CONFIRM 3 You will be prompted to enter a password 4 Hold down butto...

Page 17: ...ore tank 4 Open all other drain cocks No 3 shown in Figure 3 2 and drain cocks of outdoor unit 5 Water remains in the strainer still after the cylinder unit was drained Drain the strainer by removing the strainer cover 1 The hose should be able to withstand heat as the draining water could be very hot Ű Basic Troubleshooting for Cylinder Unit The following table is to be used as a guide to possibl...

Page 18: ...hermistor adjustment Auxiliary settings THW1 THW2 THW3 THW4 THW5A THW5B Economy settings for pump 10 C 30 C 10 C 30 C 25 C 60 C í Active Non active Set time On Off On Off Timer On Off Timer Consumed electric energy Produced energy 40 C 70 C 15 C 30 C 30 120 mins 30 120 mins Normal Energy save Room temp Flow temp Compensation curve í 33 C 25 C 60 C í 25 C 60 C í 25 C 60 C Active Non active Active N...

Page 19: ...ing it to the customer HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN IMPORTER MITSUBISHI ELECTRIC AIR CONDITIONNING SYSTEMS EUROPE LTD NETTLEHILL ROAD HOUSTOUN INDUSTRIAL ESTATE LIVINGSTON EH54 5EQ SCOTLAND U K MITSUBISHI ELECTRIC EUROPE B V UK BRANCH TRAVELLERS LANE HATFIELD HERTS AL10 8XB ENGLAND U K ...

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