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23

Electrical Installation

(continued)

DIP Switch Settings - FTC4

Located on the FTC4 printed circuit board are 4 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. To move the switch you will need to use a pin or the corner of a small flat
headed electrical screwdriver or similar.

DIP switch settings are listed below. Make sure to turn off both indoor unit and outdoor unit power supplies before
changing the switch settings.

For multiple outdoor units control with FTC4 (Slave), see separate manual supplied with the FTC4 (Slave) circuit board.

Notes

*1.

OUT11 will be available. For safety reasons, this function is not available for certain errors. (In that case,
system operation must be stopped and only the water circulation pump keeps running.)

*2.

SW4-2 is available only when SW4-1 is ON.

*3.

If emergency mode is no longer required, return the switch to OFF position.

*4.

All pre-plumbed cylinders come with DIP switches pre-set for 1 zone function.

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Pre-Plumbed Slimline Cylinder Installation Manual

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Summary of Contents for Ecodan PUHZ-HW140VHA-BS

Page 1: ...Mitsubishi Electric Pre Plumbed Slimline Cylinder Installation Manual IMPORTANT This manual contains commissioning and maintenance records and must be left with the equipment ...

Page 2: ......

Page 3: ...age 21 16 Controller Options Page 22 23 17 Cylinder and Hydraulic Components Install Guidance Page 24 25 18 Automatic Bypass Valve Page 26 19 Expansion Vessel Page 27 20 Ancillary Components Page 28 21 Discharge Arrangement Page 29 30 22 Ecodan Installation Page 31 35 23 Electrical Installation Page 36 49 24 General Commissioning Page 50 25 Main Controller Page 51 64 26 SD Card Function Page 65 27...

Page 4: ...Safety Document No 635 Only Mitsubishi Electric Accredited Installers AI for heating should install the Ecodan system Mitsubishi Electric s notes must not be taken as overriding statutory obligations When installing unvented hot water systems section G3 of the building regulations should be adhered to An annual inspection would also be required to ensure safe long term operation The information in...

Page 5: ...ylinder cupboard FTC4 based systems also have the ability to control multiple Ecodan units or to integrate fossil fuel boilers into a single system Further details of how to achieve these types of setup can be found later in this manual Precise control of any immersion heater fitted is now available directly from FTC4 so there is no need to add any third party relays as was the case with FTC2 syst...

Page 6: ...e containing biocide 10 Litre Fernox HP 5C Antifreeze containing biocide 25 Litre PAR WT50R E Wireless Remote Controller Transmitter PAR WR51R E Wireless Remote Controller Receiver PAC TH011HT E Fossil Fuel Boiler Thermistors PAC TH011 E Pair of 2 Zone Sensors 2 pairs required Optional Components The standard Slimline Cylinder comes with a single UPS2 25 60 circulation pump and a pair of zone valv...

Page 7: ...te are suitable for the Mitsubishi Electric Pre Plumbed Slimline Cylinder Maximum flow rate 50 litres minute Maximum pressure 3 bar If necessary consult the local water company regarding the likely pressure and flow rate availability If measuring the water pressure note that a high static no flow mains pressure is no guarantee of good flow availability In a domestic installation 1 5 bar and 25l m ...

Page 8: ...ax 300 mg l in total 2 The cylinder should be filled with water before turning on the electricity supply on to the immersion heater elements 3 The log book commissioning certificate should be completed at the time of installation 4 The cylinder should be serviced and maintained every 12 months and is marked as such in the benchmark log book provided at the back of this manual Invoices for the main...

Page 9: ... Slimline Cylinder Installation Manual Domestic Hot Water Drain Heating Zone 1 Return Heating Zone 2 Return Heating Zone 2 Flow Heating Zone 1 Flow Cold Mains Water Heat Pump Return Domestic Hot Water Heat Pump Flow Pressure Relief Tundish ...

Page 10: ...ure This is not recommended as it is the least efficient method of providing space heating There are instances whereby it is a useful feature for example when commissioning a system Option 3 is known as room compensation and is only available when using a Mitsubishi Electric thermostat In this mode the FTC4 will calculate the optimum flow temperature Each of the three Ecodan monobloc models requir...

Page 11: ...vaporates It is at this point when some of the free heat energy in the outside air is absorbed by the refrigerant It is only the refrigerant that is being passed through this cycle the water is heated up by the plate heat exchanger The cooler water extracts energy from the hotter refrigerant i e the water is heated as it passes across the plate heat exchanger This water flows towards the heating s...

Page 12: ... Height 1880 1950 Weight empty full kg 65 5 215 5 69 5 249 5 Cylinder Material Tank Cylinder Material Stainless Steel Stainless Steel Heating Surface Area m2 2 3 Insulation Insulation Type Polyurethane PU Insulation with CO2 Blowing Agent Insulation Thickness mm 50 50 Standing Heat Loss kWh 24hrs 1 31 1 6 GWP of Insulation 0 0 ODP of Insulation Less than 5 Less than 5 Electrical Data Control Board...

Page 13: ...20 240v 50Hz 380 415v 50Hz Phase Single Single Single 3 Phase Running current A Max 5 4 13 10 3 23 14 9 35 5 1 13 Fuse Rating MCB sizes BS EN 60947 2 A 16 25 40 16 Heating A2 W35 Capacity kW 5 0 8 5 14 COP 3 13 3 17 3 11 Power Input kW 1 6 2 68 4 52 Nominal Flow Rate L min 14 3 25 8 40 1 Heating A7 W35 Capacity kW 5 0 9 0 14 0 COP 4 1 4 18 4 25 Power Input kW 1 22 2 15 3 29 Nominal Flow Rate L min...

Page 14: ...00 Capacity at step 7 kW Ambient Temp deg C PUHZ W50 W35 W45 W55 W35 W45 W55 W35 W45 W55 0 1 2 3 4 5 6 7 8 9 10 15 00 10 00 5 00 0 00 5 00 10 00 Capacity at step 7 kW Ambient Temp deg C PUHZ W85 0 2 4 6 8 10 12 14 16 15 00 10 00 5 00 0 00 5 00 10 00 Capacity at step 7 kW Ambient Temp deg C PUHZ HW140 Fig 2 4 Fig 2 5 Fig 2 6 Where W35 is a flow temperature of 35ºC Where W45 is a flow temperature of...

Page 15: ... shown below As low noise mode reduces maximum capacity it is important that the capacity at the low noise mode selected is sufficient to overcome the building s calculated heat losses PUHZ W50VHA BS Noise Curve SW5 1 Max fan step STEP 9 STEP 9 OFF Selection of max fan step Always selection at the silent mode 2 Max frequency Middle Level Low Level OFF Selection of compressor Always selection frequ...

Page 16: ...11 Low Noise Mode continued PUHZ W85VHA2 BS Noise Curve PUHZ HW140VHA2 YHA2 BS Noise Curve 16 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 17: ...G Domestic Hot Water Drain H Heating Zone 1 Return I Heating Zone 2 Return J Automatic Bypass Valve K Balanced Cold Feed 17 Pre Plumbed Slimline Cylinder Installation Manual C K J G I H F E D B A All dimensions in mm MODEL K J I H G F E D C B A 1800 1870 1100 1100 730 730 487 487 80 80 860 860 940 940 1360 1360 1740 1810 1780 1850 1880 1950 150L PP MEUK 180L PP MEUK ...

Page 18: ...w Sizing Example First the room losses must be established by undertaking a heat loss calculation to the required standard in this case room losses are assumed Room losses 1200 Watts at 3 C outdoor and 21 C indoor In the case of a high temperature fossil fuel system a radiator may be selected directly from the manufacturer s brochure K2 double panel double convector 450mm x 900mm output 1268 Watts...

Page 19: ...cement of thermostats where they are affected by external sources of heat or cold temperatures will lead to poor temperature control Under floor heating circuits can produce high pressure losses The pumps provided in our packaged systems are capable of providing the necessary flow rates on averagely sized primary circuits but with the inclusion of under floor circuits additional pumps may be neces...

Page 20: ...led PUMP IV THW2 THW1 ABV FLOW METER MAG FILTER DHW FLOW ZONE 1 RETURN ECODAN FLOW ECODAN RETURN Motorised Two Port Valve Pump Flow Meter Mag Filter ABV Thermistor Pipework Field Supply Factory Pipework DHW RETURN Legend 20 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 21: ...4 It is assumed the fossil fuel boiler will have its own integrated circulation pump ZONE 1 FLOW THW6 THW8 THW7 ABV MAG FILTER THW2 1 THW1 1 THWB1 3 THWB2 3 FOSSIL FUEL BOILER 4 LOW LOSS HEADER 2 FLOW METER FLOW METER PUMP PUMP 2 THW9 ZONE 2 FLOW ZONE 1 RETURN ECODAN RETURN ECODAN FLOW ZONE 2 RETURN DHW RETURN DHW FLOW Legend Motorised Two Port Valve Pump Flow Meter Mag Filter ABV Thermistor Pipew...

Page 22: ...mperature for heating room Any changes to DHW 1 must be made using main controller mounted on the FTC 4 Master The thermostat is wired to IN1 in TBI 1 on FTC 4 Master The number of thermostats that can be connected to FTC 4 Master is always one The wireless remote controller can be also used as a thermostat Outdoor unit Outdoor unit Outdoor unit Outdoor unit Wireless receiver option Main controlle...

Page 23: ...re thermistor option Room temperature thermostat HOG VXSSO Main controller Outdoor unit Zone1 Room temp control Auto adaptation RQH RPSHQVDWLRQ FXUYH RU ÀRZ WHPS FRQWURO Zone1 Zone2 Main controller remote position Room temperature thermostat HOG VXSSO Zone1 Room temp control Auto adaptation RQH RPSHQVDWLRQ FXUYH RU ÀRZ WHPS FRQWURO Zone2 Zone1 Outdoor unit Room temperature thermostat HOG VXSSO Wir...

Page 24: ...the return just below the TF1 compact filter The primary circuit is positively pumped The primary circuit can be open vented or sealed with up to a maximum pressure of 3 5 bar If you seal the primary circuit an expansion vessel and pressure relief valve is required Effective thermostatic control of both the primary circuit and the cylinder is incorporated into the FTC4 circuit board and correspond...

Page 25: ... connect 22mm copper tube to these connections Cut the tube with a pipe cutter and ensure no sharp edges or burrs protrude Slide both the gland nut and olive onto the tube and push the tube fully home into the connection ensuring the tube end fully bottoms on the connection recess Smear the outer wall of the olive with plumbing paste and tighten the gland nut in the prescribed manner Upon filling ...

Page 26: ... of a pump overrun occurring when the demand for heating or hot water has been satisfied that the primary circulation pump heat pump flow is able to bypass the zone valves and hence no pump damage will occur The illustration below shows the position of the automatic bypass valve on the cylinder It is important that this valve is set so as it opens at the minimum flow rate achieved for the Ecodan u...

Page 27: ...associated pipework The installer will need to make this selection based upon the below sizing equation Where V Necessary expansion vessel volume ε Water expansion co efficient G Total volume of water in the system P1 Expansion vessel setting pressure P2 Max pressure during operation Graph above is for the following values ε at 70ºC 0 0229 P1 0 1MPa P2 0 3MPa 30 safety margin is added Expansion Ve...

Page 28: ...ng window Pipework In order to achieve the high flow rates required for optimum efficiency appropriate pipework sizes need to be considered Selection of pipework will be based upon the resistance of the heating circuit including all emitters in most cases higher than the hot water circuit and Ecodan heat exchanger Typical pipe sizes are as follows these Anti Vibration Equipment Flexible hoses are ...

Page 29: ... such that any discharge is visible In addition where discharges from safety devices may not be apparent e g people with impaired vision or mobility consideration should be given to the installation of a suitable safety device to warn when discharge takes place e g electronically operated Note The discharge will consist of scalding water and steam Asphalt roofing felt and non metallic rainwater go...

Page 30: ... providing that where children play or otherwise come into contact with discharges a wire cage or similar guard is positioned to prevent contact whilst maintaining visibility Discharges at a high level e g in to metal hopper and metal down pipe with the end of the discharge pipe clearly visible or onto a roof capable of withstanding high temperature discharges of water and 3m from any plastic gutt...

Page 31: ... moisture may enter the unit and it may cause electric shock or fire Make sure to use accessories authorized by Mitsubishi Electric and ask an installer or authorized electrician to install them If accessories are improperly installed it may cause water leakage electric shock or fire Do not remodel the unit Consult an installer for repairs If alterations or repairs are not performed correctly it m...

Page 32: ...ible NECESSARY SPACE TO INSTALL When installing a single outdoor unit When installing multiple outdoor unit Installation Procedure Be sure to install the unit on a solid level surface to prevent rattling noises during operation Make sure that the length of the foundation bolt is within 30mm from the surface of the base Secure the base of the unit firmly with 4 M10 foundation bolts in solid locatio...

Page 33: ... the water intake Maximum allowance torque at the water piping connection is 50N m Check if water leaks after installation Inlet water gauge pressure must be between 0 0 3MPa Use the inlet water of higher than 5 C and lower than 55 C R 5 3 Foundation Specification Foundation bolt M10 3 8 Thickness of concrete 120mm Length of bolt 70mm Weight bearing capacity 320kg 33 Pre Plumbed Slimline Cylinder ...

Page 34: ...re the maximum values Calcium 100mg L Chlorine 100mg L Iron Maganese 0 5mg L Note Make sure to perform the frozen prevention measure for water pipe system water piping insulation back up pump system using of a certain monopropolyne glycol instead of normal water Insulate the water piping properly the performance can be poor if the insulation is insufficient WARNING A the outlet water temperature c...

Page 35: ...inimum Requirements for location of Ecodan Figures stated are in mm s figures in brackets are for PUHZ HW140VHA 2 YHA 2 units A 2 2 C F 2 1 2 R 5 3 C C C0 C C0 C C0 C C00 C C03 C C09 C C0 C C04 C C06 C C08 35 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 36: ...4 connections final specification will always be the liability of the electrical technician and must be in accordance with national wiring regulations 1 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 2 Max 120 m 3 The values given in the ...

Page 37: ...lease keep enough output capacity of power supply for each individual heater Insufficient power supply capacity might cause chattering Cable Routing Do not run the low voltage cables through a slot that the high voltage cables go through Do not run other cables through a slot that the wireless receiver s cable goes through Do not bundle power cables together with other cables Bundle cables as figu...

Page 38: ...may apply The appliance shall be supplied from a suitably rated double pole isolator with a contact separation of at least 3mm in both poles In the event of an electrical fault after installation of the appliance electrical checks must be carried out i e Earth Continuity Short Circuit Polarity and Resistance to Earth The heat pump MUST BE DISCONNECTED BEFORE these tests are carried out The 2 core ...

Page 39: ...ller non polar non polar non polar non polar Outdoor unit L N single 3 AC 230 V AC 230 V AC 230 V AC 415 V Outdoor unit L1 N L2 N L3 N 3 phase Interface unit Flow temp 3 DC 24 V DC 24 V DC 24 V DC 24 V controller outdoor unit S2 S3 Remote controller Interface 3 DC 12 V DC 12 V DC 12 V DC 12 V unit Flow temp controller PUHZ HW140YHA 2 BS PUHZ HW140VHA 2 BS PUHZ W85VHA 2 BS PUHZ W50VHA BS Wiring Wir...

Page 40: ...rd When placing as a thermostat choose a suitable location that is not likely to be influenced by heat sources or cold spots i e near radiator window Connect the main controller cable to 13 and 14 on the terminal block TBI 2 on the FTC4 Master controller When wiring to TBI 2 use ring or fork type terminals The 10m controller cable is supplied loose This can be extended to a maximum of 500 m using ...

Page 41: ... securing of the back cover switch box can be drilled 2 Connecting cable to the back cover Connect the main controller cable to the terminal block on the back cover and thread the cable from behind the back cover to the FTC4 circuit board Seal the gap between the cable and the hole through which the cable is threaded 41 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 42: ...r directly to the wall or using a switch box as shown in the examples below 4 Join the front and back cover The cable connector should now be connected to the front cover jack and the front and back covers joined together using the securing tabs 42 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 43: ...tch to backup Inactive Active 1 OFF OFF heat source O U error SW2 6 Mixing tank 2 zone WITHOUT Mixing WITH Mixing OFF ON 4 SW2 7 2 zone control Inactive Active OFF ON 4 SW2 8 OFF OFF SW3 SW3 1 Room thermostat 2 input IN6 Zone 2 operation stop Zone 2 operation stop OFF OFF logic change at thermostat close at thermostat open SW3 2 Flow switch 2 IN3 logic change Failure detection Failure detection OF...

Page 44: ...below Make sure to turn off both indoor unit and outdoor unit power supplies before changing the switch settings For multiple outdoor units control with FTC4 Slave see separate manual supplied with the FTC4 Slave circuit board Notes 1 OUT11 will be available For safety reasons this function is not available for certain errors In that case system operation must be stopped and only the water circula...

Page 45: ...23 Electrical Installation continued FTC4 Terminals N L FTC4 MASTER 45 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 46: ...Boiler operation 2 IN5 TBI 1 9 10 Outdoor thermostat input 1 Standard operation Heater operation Boiler operation 2 IN6 TBI 1 11 12 Room thermostat 2 input Refer to SW3 1 Refer to SW3 1 IN7 TBI 1 13 14 Flow switch 3 input Zone 2 Refer to SW3 3 Refer to SW3 3 Name Terminal Function OFF Open ON Short TH1 CN20 Thermistor Room temp 1 PAC SE41TS E TH2 CN21 Thermistor Ref liquid temp 2 THW1 CNW12 1 2 Th...

Page 47: ...O 3 1 2 Boost heater 1 OFF ON 230V AC 0 5A Max relay OUT7 TBO 3 3 4 Boost heater 2 OFF ON 230V AC 0 5A Max relay OUT8 TBO 2 11 12 Boost heater 2 OFF ON 230V AC 0 5A Max relay OUT9 TBO 2 9 10 CNIH Immersion heater 230V AC 0 5A Max relay OUT11 TBO 2 1 2 Error output Normal Error 230V AC 0 5A Max relay OUT12 TBO 2 3 4 Defrost output Normal Defrost 230V AC 0 5A Max relay OUT13 TBO 2 7 8 2 way valve 2 ...

Page 48: ... to 3 minutes with this option turned on via the tick box It is assumed the boiler will have its own dedicated circulation pump which is interlocked with the boiler not the FTC4 Once the pump overrun period has ended the main circulation pump on the cylinder OUT1 and the dedicated Ecodan circulation pump OUT1 with relay protection will de energise meaning that the space heating circulator and the ...

Page 49: ...rised valve controlling each zone directly connected to the primary circuit To achieve this a 2 zone accessory pack must be purchased this will comprise of the following items Honeywell spring return 2 port zone valve Copper pipe stub including additional thermistor pockets Four additional flow and return thermistors Prewired cable with colour coded plug connector In conjunction with this accessor...

Page 50: ... tested Safety Valve Checks During heat up there should have been no sign of water coming from either the expansion relief valve or the temperature pressure relief valve Now hold both of these safety valves fully open allowing as much water as possible to flow through the tundish Check that your discharge pipework is free from debris and is carrying the water away to waste efficiently Release the ...

Page 51: ...r s requirements are met Some key points when setting up the main controller for the first time are described in this section 1 when the system is switched off or the power supply is disconnected the water circuit protection functions e g freeze stat function will NOT operate This will not cause an issue for UK installations as the system will be treated with antifreeze 51 Pre Plumbed Slimline Cyl...

Page 52: ...ressing 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 once for a short time the main settings will be displayed but without the edit function This will enable the user to view current settings but not...

Page 53: ...ess controller is to be used Time Zone control is a function which allows up to eight room sensors to operate on a single hydraulic circuit zone rotating which has priority at different times during the day to activate this function please go to the following screen 1 Go to room sensor settings sub menu 2 When 2 zone temperature control is active or wireless remote controllers are available from R...

Page 54: ...ction keys and press CONFIRM Explanation of DHW operation When the DHW tank temperature drops from DHW max temp by more than the DHW max temperature drop set by installer DHW mode operates and the flow from the primary heating circuit is diverted to heat the water in the DHW tank When the temperature of the stored water reaches the DHW max temp set by the installer or if the DHW max operation time...

Page 55: ... heat the water in the DHW tank 2 When the temperature of the stored water exceeds the Hot Water temp set by the installer above 65 C primary circuit water is no longer diverted to heat the DHW tank 3 Whilst LP mode is in operation hot water is not directed to the space heating circuit 4 Directly after LP mode operation Duration of max temp will operate The duration of this feature is set by the i...

Page 56: ...c thermostats sensors it is recommended that room compensation mode is used When using third party thermostats for example on a multi zone underfloor heating system either weather compensation mode or room compensation mode can be used Weather compensation mode must be programmed to suit the system design for the building in question Fixed flow temperature mode is a function that is utilised for c...

Page 57: ...r ambient temp is maximum 6 Press F4 to add an extra point adjust Pressing F2 4 will cause the relevant edit screen to be displayed Editing Lo and Hi parameters is done in the same way please see the following for more detailed explanation of parameter editing In the parameter Lo Hi edit screen the flow temperature and outdoor ambient temperature for the compensation curve graph can be set and alt...

Page 58: ...3 A list of variables will be displayed Choose the one you wish to modify using buttons F1 F2 then press CONFIRM Adjust the temperature using buttons F3 and F2 and press CONFIRM button to save changes Schedule timer The schedule timer mode allows daily and weekly space heating and DHW patterns to be entered 1 From the main settings menu use F2 and F3 to highlight the schedule timer icon then press...

Page 59: ...f inactivity then press CONFIRM 8 You can add up to 4 periods of inactivity within a 24 hour interval 9 Press F4 to save settings When scheduling heating button F1 changes the scheduled variable between time and temperature This enables a lower temperature to be set for a number of hours e g a lower temperature may be required at night when the occupants are sleeping Note The schedule timer for sp...

Page 60: ...Manual operation 2 Function settings 3 Thermistor adjustment 4 Auxiliary settings 5 Heat source setting 6 Operation settings 7 External input settings 8 Running information 9 Thermistor reading 10 Summary of settings 11 Error history 12 Password protection 13 Manual reset 14 SD card In this Installation Manual instructions will be given only for the following functions 1 Manual operation 2 Auxilia...

Page 61: ...m the service menu use F1 and F2 buttons to highlight Auxiliary settings then press CONFIRM Electric Heater Heating 1 From the Auxiliary settings menu highlight Electric heater heating 2 Press CONFIRM 3 The Electric heater heating screen is displayed 4 Press F1 button to switch the function ON OFF 5 Use F3 and F4 buttons to adjust the time period of heat pump only operation before the booster heat...

Page 62: ...1 From the service menu use F1 and F2 buttons to scroll through list until Heat Source Setting is highlighted 2 Press CONFIRM Heat source setting menu screen is displayed 3 Press F3 button until preferred heat source is displayed 4 Press CONFIRM If you wish to return to the service menu without saving the setting press return button You will be asked if you are sure you wish to cancel the changes ...

Page 63: ...s above the selected temp for this specific mode of operation Cold Weather Function For extremely low outdoor ambient temperature conditions when the heat pump s capacity is restricted the heating or DHW is provided only by the electric booster heater and immersion if present This function is intended for use during extreme cold periods only Extensive use of direct electrical heaters ONLY will res...

Page 64: ...l is being sent to IN4 forcefully stops all the heat source operations and the selection of Boiler stops operations of heat pump and electric heater and performs boiler operation Outdoor Thermostat IN5 From the External input settings menu highlight Outdoor thermostat IN5 Press CONFIRM 1 The Outdoor thermostat screen is displayed 2 Press F3 button to select Heater or Boiler 3 Press CONFIRM Note Th...

Page 65: ...ead and write operations are successfully completed If the LED4 lamp continues blinking or does not light the SD memory card cannot be read or written to by the FTC4 controller 8 Make sure to follow the instruction and the requirement of the SD memory card s manufacturer 9 Format the SD memory card if determined unreadable in step 6 This could make it readable Download an SD card formatter from th...

Page 66: ...one control check that DIP SW2 6 and SW 2 7 are set to ON J0 Communication failure between FTC4 and wireless receiver Check connection cable for damage or loose connections P1 Room temperature thermistor failure 1 Check resistance across thermistor P2 Refrigerant temperature thermistor failure 1 Check resistance across thermistor P6 Antifreeze protection of plate heat exchanger See action for L3 J...

Page 67: ...rning Do not use the system if the insulation resistance is less than 1 0MΩ Caution Do not carry out this test on the control wiring low voltage circuit terminals When an error occurs when power is applied or during operation Indication of error details The code unit address and telephone number are displayed The telephone number is displayed if registered Resetting the error Press the F4 RESET bu...

Page 68: ... voltage across the terminals L and N or L3 and N on the outdoor power board When the voltage is not 220 to 240V AC check wiring of the outdoor unit and of the breaker When the voltage is at 220 to 240V AC go to 2 below 2 Check the voltage across the outdoor unit terminals S1 and S2 When the voltage is not 220 to 240V AC check the fuse on the outdoor control board and check for faulty wiring When ...

Page 69: ...s off 6 1 Check and open stop cock 2 solate water supply and clean strainer 1 Cold main off 2 Strainer field supply blocked No water at hot tap 7 1 Move or delete data or replace SD memory card with a new one 2 Release the write protect switch 3 Refer to P 67 4 FTC4 is Not compatible with NTFS file system Use an SD memory card formatted in FAT file system 1 Full of data 2 Write protected 3 NOT for...

Page 70: ...tat and press reset button if safe Reset button is located on the side of booster heater covered with white rubber cap See component parts diagram Installation manual of Hydrobox section 3 to find out its position 3 Check the cause and reset if safe 4 Check resistance across the thermal cut out if open then connection is broken and the booster heater will have to be replaced Contact your Mitsubish...

Page 71: ...the outdoor unit controls the frequency of the compressor according to the load of air conditioner The DHW and heating run according to that frequency When a PUHZ FRP outdoor unit is connected and is in heat recovery operation the set temperature is not reached 16 1 Check settings and change as appropriate 2 Check the battery power and replace if flat 3 Relocate the temperature sensor to a more su...

Page 72: ... vessel with a new one 1 If continual pressure relief valve may be damaged 2 If intermittent expansion vessel charge may have reduced bladder perished Water discharges from pressure relief valve Primary circuit 19 1 Install extra pipe fastening clips 2 Normal operation no action necessary 1 Loose airing cupboard pipework 2 Heaters switching on off Noise during hot water draw off typically worse in...

Page 73: ...g system does not cool down to the set temperature 29 Adjust the preset temperature below which the freeze stat function is activated Refer to Freeze stat function on Page 49 If the preset temperature below which the freeze stat function is activated is low error L6 is more likely to occur interruption operation before the freeze stat function is activated During DHW or LP mode following the cooli...

Page 74: ...alves VALVETP3 47 Pressure and Temperature Relief Valve 7 bar EXPVES12 12 Litre Expansion Vessel EXPVES18LPRI 19 Litre Expansion Vessel MANIFOLD322 22mm Cold Feed Inlet Manifold 3 bar STATHIGHSGL High Limit Thermostat IMHTRSS340 3KW Immersion Heater 1 3 4 AUTOBYP ASS 22mm Automatic Bypass Valve AIRVENT1 2 3 4 Automatic Air Vent FILTERDUCO22 22mm Magnetic Filter 74 Pre Plumbed Slimline Cylinder Ins...

Page 75: ...stems pH stable Physical Properties Application and Dosage Dilute before use with mains water In order to ensure adequate corrosion and biocidal protection the minimum in use concentration of the product is 10 Maximum in use concentration is 30 Upon dilution Fernox HP 5C will provide frost protection according to the table below Frost protection level can be checked using a Fernox Refractometer Ex...

Page 76: ...ck for the correct operation and temperature setting of the thermostats 9 Check the operation of the zone valves 10 Check the operation and the timing of the immersion heater 11 On completion check that the whole system is working satisfactorily Mitsubishi Electric recommends that the frequency of maintenance visits to be a maximum of 12 months between inspections Frequency of maintenance may incr...

Page 77: ...VICE 3 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 4 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 5 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 6 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 7 AEI Engineer Name AEI Company Name AEI Teleph...

Page 78: ... SERVICE 3 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 4 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 5 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 6 AEI Engineer Name AEI Company Name AEI Telephone No Comments AEI No Sig Date SERVICE 7 AEI Engineer Name AEI Company Name AEI Te...

Page 79: ...ing Regulations and then handed to the customer to keep for future reference Failure to install and commission this equipment to the manufacturers instructions may invalidate the warranty but does not affect your statutory rights All installations in England and Wales must be notified to Local Authority Building Control LABC either directly or through a Competent Persons Scheme www centralheating ...

Page 80: ...ipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference For further information please refer to Mitsubishi Electric training literature 35 Ecodan Commissioning Checklist 80 Pre Plumbed Slimline Cylinder Installation Manual ...

Page 81: ...specifically requested to do so at production stage All goods are sold subject to the condition of sale Important Note Included with the Ecodan product is the Mitsubishi Electric homeowner guarantee registration card Please use this card to register within 30 days of commissioning occupation if new build and ensure the homeowner benefits from Mitsubishi Electric homeowner 3 year guarantee for the ...

Page 82: ...th wired plug connection 2 sets of pipe thermistors 2 flow and 2 return 4 pipe stubs with copper sensor pockets 3 compression fittings 2 The zone valve and one stub pipe connect to the blanked off compression T piece which is fitted to primary return pipework if required a 45 degree elbow may be added before the stub pipe in order to bring the pipework tighter to the cylinder body 3 The existing 2...

Page 83: ...zone 1 and 2 respectively again it is possible to use 45 degree elbows if there is a requirement to tilt the pipe stubs towards the cylinder body Electrical Connections 1 Connect the colour coded yellow plug to the corresponding connector found within the FTC4 casing Run the cables through one of the entry grommets at the base of the case and cable tie any loose cable to existing cables 2 The addi...

Page 84: ...ne neither zone should be run in room compensation mode with 2 zones connected the following screen will be shown by clicking on the heating sub menu Both zones should have the following weather compensation symbol selected Settings can be edited by holding down the main menu button for 3 seconds this will unlock the pen and paper symbol on the compensation curve screen The compensation curve for ...

Page 85: ...nstallation kit The following instructions describe how to connect this accessory pack The circulation pump comes with valves fitted and one compression fitting The pump is fitted with the correct amount of cable to reach the FTC4 the cable is terminated with a colour coded male plug connector this connects to the corresponding connector inside the FTC4 meaning no wiring is necessary The factory f...

Page 86: ... 2014 Mitsubishi and Mitsubishi Electric are trademarks of Mitsubishi Electric Europe B V The company reserves the right to make any variation in technical specification to the equipment described or to withdraw or replace products without prior notification or public announcement Mitsubishi Electric is constantly developing and improving its products All descriptions illustrations drawings and sp...

Page 87: ...Related Links Model Number ECOSLIM 150L PP MEUK Ecodan ECOSLIM 150L 180L PP MEUK Declaration of Conformity Ecodan ECOSLIM 150L 180L PP MEUK Installation Manual ...

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