background image

2

Safety Precautions

1

disposal of the Unit

this symbol mark is for eU countries only.
this  symbol  mark  is  according  to  the  directive  2002/96/eC 
article  10  information  for  users  and annex  iv,  and/or  to  the 
directive 2006/66/eC article 20 information for end-users and 
annex ii.

Your Mitsubishi Electric heating system products have been man-
ufactured  with  high  quality  materials  and  components  which  can 
be recycled and/or reused. The symbol in Figure . means that 
electrical  and  electronic  equipment,  batteries  and  accumulators 
at the end of their life, should be disposed of separately from your 
household waste. 
If  a  chemical  symbol  is  printed  beneath  the  symbol  (Figure .), 
this chemical symbol means that the battery or accumulator con-
tains a heavy metal at a certain concentration. This is indicated as 
follows;
Hg: mercury (0.0005%), Cd: (cadmium (0.002%), Pb: lead (0.004%)

In the European Union there are separate collection systems for used electrical 
and electronic products, batteries and accumulators.
Please dispose of this equipment, batteries and accumulators correctly at your lo-
cal community waste collection/recycling centre. 

Contact your local Mitsubishi Electric dealer for country-specific details on 

disposal. 

Please, help us to conserve the environment we live in.

 

 

Warning

The unit should NOT be installed or serviced by the user. If installed incorrectly water leakage, electric shock and fire may result.

never block discharges from emergency valves.
do not operate the unit without emergency valves and thermostatic cut outs being operational.  if in doubt contact your installer.
do not stand on or lean on unit.
do not place objects on top or below the unit and observe service space requirements when placing objects next to the unit.
do not touch the unit or controller with wet hands as electric shock may result.
do not remove the panels of the unit or try to force objects inside the unit’s casing.
do not touch protruding pipework as it may be very hot and cause burns to the body.
Should the unit start vibrating or making abnormal noises stop operation, isolate from the power supply and contact the installer.
Should the unit start to produce any burning smells stop operation, isolate from the power supply and contact the installer. 
Should water be visibly being discharged through the tundish stop operation, isolate from the power supply and contact the installer. 

The Mitsubishi Electric cylinder and hydroboxes are NOT intended for use by children or infirm persons without supervision.

Care should be taken to prevent children and pets having easy access to the units.
in the case of a refrigeration leak, stop the operation of the unit, thoroughly ventilate the room and contact the installer.

If power supply cable is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

Do not place containers with liquids in on top of the unit. If they leak or spill the unit may be damaged and fire could occur.

When installing or relocating, or servicing the cylinder unit and the hydrobox, use only the specified refrigerant (R410A) to charge the refrigerant lines. 

do not mix it with any other refrigerant and do not allow air to remain in the lines. if air is mixed with the refrigerant, then it can be the cause of abnormal 

high pressure in the refrigerant line, and may result in an explosion and other hazards.

The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown. In the worst 

case, this could lead to a serious impediment to securing product safety.

















 

 CaUtion

do not use sharp objects to press the buttons of the main controller as this will cause damage to the buttons.
if power to unit is to be turned off for a long time, the water should be drained.

Do not place a container etc. filled with water on the top panel.



► Before operating this unit it is important to read the safety precautions.
► The following safety points are provided to prevent injury to yourself and damage to the unit please adhere to them.

Used in this manual 

 Warning:

Precautions listed under this title should be observed to prevent 
injury or death to the user.

 CaUtion:

Precautions listed under this title should be observed to prevent 
damage to the unit.

<Figure .>

Follow the instructions provided in this manual and local regulations when using this unit.

Summary of Contents for EHPX Series

Page 1: ...o Per un uso corretto e sicuro del dispositivo leggere attentamente il presente manuale di funzionamento prima di utilizzare dell unità con bollitore e dell hydrobox Manual de Funcionamento Para uma utilização segura e correcta é favor ler cuidadosamente este manual de funcionamento antes de trabalhar com o no cilindro e nos hídricos Brugsvejledning Læs venligst denne brugsvejledning grundigt inde...

Page 2: ...at exchanger DeltaT Difference in temperature between two variables DHW mode Domestic hot water heating mode for showers sinks etc Flow rate Speed at which water circulates around the primary circuit Flow temperature Temperature at which water is delivered to the primary circuit FTC3 Flow temperature controller the circuit board in charge of controlling the system Compensation curve mode Space hea...

Page 3: ...ply and contact the installer Should the unit start to produce any burning smells stop operation isolate from the power supply and contact the installer Should water be visibly being discharged through the tundish stop operation isolate from the power supply and contact the installer The Mitsubishi Electric cylinder and hydroboxes are NOT intended for use by children or infirm persons without supe...

Page 4: ...P this is the ratio of heat delivered to power consumed The operation of a heat pump is similar to a refrigerator in reverse This process is known as the vapour compression cycle and the following is a more detailed explanation The first phase begins with the refrigerant being cold and low pressure 1 The refrigerant within the circuit is compressed as it passes through the com pressor It becomes a...

Page 5: ...sing the specialised Mitsubishi Electric controls Using the SCHEDULE and HOLIDAY functions prevent unnecessary Space or DHW heating when the property is known to be unoccupied for instance during the working day Due to lower flow temperatures heat pump heating systems should be used with large surface area radiators or under floor heating This will provide a steady heat to the room whilst improvin...

Page 6: ...c air vent Main controller Temperature and pressure relief valve EHPT20X VM2HA ONLY Main controller Manometer Pressure gauge Heat pump connection Pressure relief valve Solar ancillary heat source connection View of base Front elevation Plan view Plate heat exchanger Interconnecting water pipes Outdoor heat pump unit Indoor hydrobox EHPX Package model system Heat pump connection Discharge pipe from...

Page 7: ...idity 0 1 35 C 80 0 1 35 C 80 Tank performance 2 Time to raise DHW tank temp 15 65 C Not applicable 23 min Time to reheat 70 of DHW tank to 65 C 20 5 min Electrical data Control board Power supply Phase voltage frequency N 230 V 50 Hz N 230 V 50 Hz Booster heater Power supply Phase voltage frequency N 230 V 50 Hz 3 400 V 50 Hz N 230 V 50 Hz N 230 V 50 Hz 3 400 V 50 Hz N 230 V 50 Hz 3 400 V 50 Hz N...

Page 8: ...ned by the menu screen visible on screen A 1 When the system is switched off or the power supply is disconnected the cylinder protection functions e g freeze stat function will NOT operate Please beware that without these safety functions in operation the cylinder may be damaged Main screen icons Icon Description 1 Legionella prevention When this icon is displayed Legionella prevention mode is act...

Page 9: ...gs icon and select by pressing CONFIRM 2 Use F1 and F2 buttons to scroll through the menu list When the required title is highlighted then press CONFIRM to edit 3 Use the relevant function buttons to edit each initial setting then press CON FIRM to save the setting Initial settings that can be edited are Date Time Language Temp unit Room temp display setting Contact number Time display Selected th...

Page 10: ...ichever is selected is al lowed Setting the schedule 1 In the PREVIEW menu screen press F4 button 2 First select the days of the week you wish to schedule 3 Press F2 F3 buttons to move between days and F1 to check or uncheck the box 4 When you have selected the days press CONFIRM 5 The time bar edit screen will be displayed 6 Use buttons F2 F3 to move to the point at which you do not want the sele...

Page 11: ...g using normally either a radiator or under floor heating system depending on the installation There are 3 heating modes Room temp Auto adaptation Flow temp Compensation curve Room temp Auto adaptation mode This mode is explained in detail in Overview of Controls Section Flow temp mode The temperature of the water flowing to the heating circuit is set by the installer to best suit the space heatin...

Page 12: ...s set by the installer and during its operation DHW mode can not be reactivated allowing time for primary hot water flow to be di rected to the space heating circuit if necessary After the DHW mode restriction operation the DHW mode can operate again and tank heating will continue if needed Eco mode DHW mode can run in either Normal or Eco mode Normal mode will heat the DHW tank quickly using the ...

Page 13: ...ature should drop to LP restart temp LP mode will re start and water flow from the plate heat exchanger will be directed to the tank to boost the temperature Once the set time for duration of max temp has passed LP mode will finish and not recur for the set interval set by installer It is the responsibility of the installer to ensure the settings for legionella pre vention are compliant with local...

Page 14: ... position between DHW and heating mode Normal operation no action necessary After DHW operation room tem perature rises a little At the end of the DHW mode operation the 3 way valve diverts hot water away from the cylinder into space heat ing circuit This is done to prevent the cylinder unit compo nents from overheating The amount of hot water directed into the space heating circuit is dependent o...

Page 15: ...AN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX UB8 1QQ U K This product is made by Mitsubishi Air Conditioning System Europe Ltd NETTLEHILL Rd HOUSTOUN IND ESTATE LIVINGSTON EH54 5EQ UK BH79D189H02 Printed in UNITED KINGDOM Installers Please be sure to put your contact address telephone number on this manual before handing it to the customer ...

Reviews: