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FLOW TEMP. CONTROLLER 2B (Cased) PAC-IF032B-E

1. Immersion heater Booster heater position System diagram Output signal both DHW DHW tank Booster heater only d Heating 44 Absent an FTC2B 443 4 5 Booster THWT Heat emitter gt heater both DHW DHW tank Booster heater and Heating and Present Immersion heater Immersion 44 heater 4 4 3 45 THW1 Heat emitter gt heater Heating only DHW tank Booster heater only Absent 44 4 4 3 4 5 Booster heater THW1 Heat emitter Heating only DHW tank Booster heater and 2 Immersion heater Immersion 44 heater 4 4 3 4 5 Booster heater THW1 Heat emitter gt Note When the booster heater is positioned for heating only flow water temp thermistor THW1 is not able to detect the outlet water temperature of circulation water during DHW or legionella prevention mode To determine more accurately if the heater is ON with DHW or legionella prevention mode THW1 must be placed where it is able to detect the outlet water temperature of circulation water Therefore the recommended booster heater position is for both DHW and heating Although the booster heater is positioned for both DHW and heating switching ON Dip SW 2 9 deactivates the booster heater during DHW or legionella prevention mode 3 System 3 4 Fourth step Water circuit
2. sw3 CN100 WHT 4 4 1 External inputs Contact signal F T 2B Name Terminal block Item OFF Open ON Short IN1 TB1424 2 Emergency Srandard operation HEET operation input operation Legionella OFF Legionella 5 F 18 1 2 TB142 3 4 prevention mode prevention mode 106 TI Ref SW3 6 in lt 5 1 Di itch TB141 INS 181425 6 Flow switch input PO ST tO 9W9 Gin 5 1 Dip swito function Fig 4 4 1 IN4 142 7 8 Cooling mode input OFF Cooling mode INS TB142 10 11 Heating mode input OFF Heating mode ING 78142 10 12 pare ECO mode ees Heating ECO mode IN7 TB142 10 13 DHW mode input 3 OFF DHW mode IN8 142 10 14 Holiday mode input OFF Holiday mode Ans Mi TB143 9 10 Room thermostat Refer to SW3 4 in 5 1 Dip switch input function 1 Input signal Pulse Pulse specifications ON short OFF open SS 200ms or more 2 Heating ECO mode sets the set temperature depending on the outdoor tem perature 3 When SW1 1 and SW1 2 are OFF the mode is switched into auto DHW mode Input signal Pulse i Pulse specifications ON short Heating s 41 HeatingECO pet 12 OFF open Neun i K 200ms or more When SW1 1 or SW1 2 or both ON the mode is switched into DHW mode TB143 4 1 T
3. gt Operation lock t gt Mode skip gt Temp range gt DHW i L Heating ee gt Cooling gt Temp offset setting gt DHW Heating i Saus gt Cooling ARRAREN gt Temp Analog signal Gen gt DHW Heating pete Secu gt Cooling gt Self check Running information p I gt Error history enn Password protection See gt Remote controller check 25 7 Remote controller operation E Setting the remote controller After the power has been connected to the outdoor unit and FTC2B unit the initial system settings can be entered via the remote controller 1 Check all breakers and other safety devices are correctly installed and turn on power to the system 2 When the remote controller switched on for the first time the screen automatically goes to Initial settings menu lan guage setting screen and date time setting screen in order 3 Remote controller will automatically start up Wait approximately 6 mins whilst the control menus load 4 When the controller is ready a blank screen with a line running across the top will be displayed 5 Press button E Power refer to page 25 to turn on the system Before turning on the system perform initial set tings as instructed below E Main menu The main menu can be accessed by pressing the MENU button To reduce the r
4. Dip SW 3 2 Operation OFF Water circulation pump is OFF ON Water circulation pump is ON It is switched OFF after 60 minutes consecutive operation 3 way valve operates according to Dip SW 3 3 setting Dip SW 3 3 Operation OFF 3 way valve is OFF ON 3 way valve is ON It is switched OFF after 60 minutes consecutive operation NOTE Even if you forget to reset the Dip SW settings above the normal operation mode can be recovered automatically in 60 minutes 5 6 Emergency mode The emergency mode is available when a failure on the outdoor unit of the heat pump or a communication error occurs This mode uses booster heater or immersion heater as a heat source and automat ically controls between the DHW mode and the heating mode When the system is not incorporated with heater the emergency mode is not available Emergency mode can be started by following two ways 1 Dip switch Before starting the emergency mode turn off the outdoor unit and FTC2B and then turn Dip SW3 7 to ON Then turn on FTC2B to start the emergency mode FTC2B can be power supplied by the outdoor unit If emergency mode is no longer required please turn off both outdoor and indoor unit power supply before returning Dip SW3 7 to OFF position 2 External input IN1 If you switch external input IN1 to ON emergency mode will start If emergency mode is no longer required you can resume to normal operation with
5. When the voltage is at 220 to 240V AC go to 2 below 2 Defective outdoor controller circuit board 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 the voltage is 220 to 240V AC go to 3 below 3 FTC2Bis not supplied with 220 to 240V AC 3 Check the voltage across the indoor unit terminals S1 and S2 When the voltage is not 220 to 240V AC check FTC2B outdoor unit wiring for faults When the voltage is 220 to 240V AC go to 4 below 4 FTC2B failure 4 Checkthe FTC2B control board Check the fuse on FTC2B control board Check for faulty wiring If no problem found with the wiring the FTC2B control board is faulty When LED1 on FTC2B is lit Recheck the refrigerant address setting on the outdoor unit Incorrect setting of refrigerant address for Set the refrigerant address to 0 outdoor unit Set refrigerant address using Dip switch on outdoor controller circuit board None of the refrigerant address is set to O 5 LED2 on FTC2B is When LED is also blinking on FTC2B Check for faulty wiring between FTC2B and outdoor unit blinking Faulty wiring between FTC2B and outdoor unit When LED1 on FTC2B is lit 1 Faulty wiring in remote controller 1 Check for faulty wiring in remote controller Multiple indoor units have been wired to a The number of indoor units that can
6. 2 When you have input your password press CONFIRM 3 The password verify screen is displayed 4 5 To verify your new password press button F3 Your password is now set and the completion screen is displayed Remote controller check When the remote controller does not work properly use the remote controller checking function to troubleshoot the problem 1 2 Press to start the remote controller check and see the check results The remote controller check results are displayed OK No problems are found with the remote controller Check other parts for problems There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission line and the other remote controllers NG ALLO ALL1 Send receive circuit fault Remote controller needs replacing ERC The number of data errors is the discrepancy between the number of bits in the data transmitted from the remote controller and that of the data that was actually transmitted over the transmission line If data errors are found check the transmission line for external noise interference If the F3 is pressed after the remote controller check results are displayed remote controller check will end and the remote controller will automatically reboot itself Note Check the remote controller display and see if anything is displayed including lines Nothing will appear on the remote controller display i
7. Model 1 2 3 Mode2 1 2 3 Mode3 1 2 3 Mode4 1 2 3 Mode5 1 2 3 y 22 Jun 2018 11 23AM MODE SKIP 27 7 Remote controller operation Temp offset setting This setting is to adjust the difference between the actual temperature and the temperature sensed by the thermistor THW1 THW5 which tends to be lower due to heat leakage or something To set offset of DHW mode select DHW Heating Note Offset setting is not available in Heating mode of FTC2B To set offset of Cooling mode select Cooling Temp Analog signal 1 Refrigerant water HEX Set following 2 parameters to assign the target temperature value to analog signal figures 1 2 Actual DHW tank temp T s Sensed DHW tank temp TEMP OFFSET HEATING temperature offset setting for Domestic Hot Water T a Actual flow water temp outlet side FTC2B Outdoor unit AT c el mmm X Wi T s Sensed flow water temp Water piping Select DHW Heating for the settings of DHW mode Heating mode and Holiday mode select Cooling for the settings of Cooling mode 2 Lower shows the target temp of 4mA 1V OV signal Upper shows target temp of 20mA 5V 10V signal Refer to the right chart Set upper and lower press CONFIRM Self check Error history of each un
8. MITSUBISHI ELECTRIC FLOW TEMP CONTROLLER 2B Cased PAC IF032B E INSTALLATION MANUAL FOR INSTALLER For safe and correct use read this manual thoroughly before installing the 2 unit OPERATION MANUAL FORUSER_ For safe and correct use please read this operation manual thoroughly before operating the air conditioner unit Contents Safety precautions Installing the FTC2B unit System Electrical work Dip switch setting gib odis 6 Before test run 7 Remote controller operation 8 Troubleshooting 9 Supplementary information Local application factors FTC2B is the abbreviation of Flow Temperature Controller 2B which is described as 2 in this manual Mitsubishi Electric is not responsible for the failure of locally supplied parts 1 Safety precautions p Before installing the FTC2B unit make sure you read all the Safety precautions p Please report to your supply authority or obtain their consent before connecting this equipment to the power supply system Warning Precautions that must be observed to prevent injuries or death Caution Precautions that must be observed to prevent damages to the unit After installation perform the test run to ensure normal operation Then explain your customer the Safety Precautions use and maintenance of the unit based on the information in the Operation Manual pr
9. select an appropriate size breaker and cable diameter based on the maximum possible electric current Safety device 1 Use an overheat protection thermostat manual reset type to detect unusual temperature increase heating up without water Protection device operating temperature must be above 80 C Protection device should not operate quickly but water circuit must not boil even when heater s overshoot Reference value Thermostat operation temperature used in our Cylinder unit and Hydrobox 90 C 4 C 2 Connect a pressure relief valve on the primary circuit side Immersion heater General Consider necessity and capacity of immersion heater to meet the following points 1 Heating capacity and flow water temperature should always be sufficient 2 System can increase the temperature of the stored water in tank to inhibit legionella bacterium growth Control Power for Current 0 5A Max 10mA Min Power supply 230V AC Contactor Use a relay Connect the surge absorber according to the load at site Separate power for Install an earth leakage circuit breaker for heater separate from control power heater Heater capacity Breaker wiring recommended Description Power supply Capacity Breaker Wiring Immersion heater DHW tank N 230V 50Hz 3 kW 16A 2 5 mm When installing an immersion heater with the capacity of bigger than shown above select an appropriate size breaker a
10. 1 to set 3 way valve control during defrost in Heating and Heating ECO and Holiday mode Dip SW 3 1 Setting OFF OFF Heating circuit ON ON DHW circuit 5 4 5 Other setting Set Dip SW 3 4 to set the room thermostat input Ana IN1 logic Dip SW 3 4 Setting OFF Comp OFF at thermostat short ON Comp OFF at thermostat open Set Dip SW 3 6 to set the flow switch input IN3 logic Set Dip SW 2 6 to set Legionella prevention hot water Desired temperature of stored hot water Dip SW 2 6 OFF 60 65 The 65 C setting can not be selected when there is no heater in the DHW circuit Dip SW settings is as follows SW1 4 OFF and SW1 5 ON SW1 4 OFF and SW1 5 OFF and SW2 9 ON And when the heat pump max outlet water temperature is 55 C SW1 10 OFF le gionella prevention mode is not available Setting Dip SW 3 6 Setting SW 2 4 SW 2 5 Setting OFF Failure detection at short OFF OFF Activate every 1 times DHW operations ON Failure detection at open ON OFF Activate every 15 times DHW operations OFF ON Activate every 150 times DHW operations ON ON Activate by IN2 5 5 Manual operation When the system is installed the whole circuit must be filled with water At this stage water circulation pump and 3 way valve shall be operated individually Water circulation pump operates according to Dip SW 3 2 setting
11. 4 Operation setting 5 4 1 Operation mode setting Operation mode Description Heating mode Space heating through heat emitters Heating ECO mode Space heating incorporating outdoor temperature compensation through heat emitters Cooling mode Space cooling through heat emitters DHW mode Domestic hot water heating mode for showers sinks etc Legionella prevention mode A function on systems with tanks to prevent the growth of legionella bacterium Holiday mode Space heating for unused time Different target temperature from above mentioned heating mode is settable Set Dip SW1 1 1 2 6 1 6 2 to set switching ON OFF changing over operation mode and target temperature setting ON OFF input Change mode input Change temp input SW1 1 SW1 2 SW6 1 SW6 2 Remote controller Remote controller or External input Remote controller OFF OFF OFF OFF non voltage contact External input External input Remote controller ON OFF OFF OFF non voltage contact non voltage contact External input Analog input 1 5V 1 non voltage contact Analog input 1 5V OFF ON OFF ON A n External input Analog 4 20 2 non voltage contact Analog input 4 20mA OFF ON ON ON External input External input non voltage contact non voltage contact Analog input TUN oN ON OFF OFF 1 1 5V OFF 0 0 5V 2 4 20mA OFF 0 2mA Set Dip SW 1 7 to set activate or deactivate cooin
12. Immersion heater breaker ECB2 tripped 6 Check the cause and reset if safe 7 8 way valve fault 7 Check plumbing wiring to 3 way valve 30 8 Troubleshooting No Fault symptom Possible cause Explanation Solution 8 Water heating takes longer ES Heat pump not working 2 Booster heater cut out tripped 3 Booster heater breaker tripped 4 Immersion heater cut out has been triggered 5 Immersion heater breaker tripped 1 Check heat pump consult outdoor unit service manual 2 Check booster heater thermostat and press reset button if safe If the heater has been operated with no water inside it may have failed so please replace it with a new one 3 Check the cause and reset if safe Check immersion heater thermostat and press reset button located on immersion heater boss if safe If the heater kept running with no water inside this may have resulted in failure so replace it with a new one 5 Check the cause and reset if safe gt The cooling system does not cool down to the set temperature hot Cooling mode starts with a delay for the protection of the outdoor unit 9 Temperature of DHW tank When DHW operation is not running the DHW water dropped tank emits heat and the water temperature decreases to a certain level If water in the DHW tank is reheated frequently because of a significant drop in water temperatu
13. be wired to a single outdoor unit is one Ad single outdoor unit ditional indoor units must be wired individually to a single outdoor unit 2 Short circuited wiring in remote controller 2 3 Remove remote controller wires and check LED2 on FTC2B If LED2 is blinking check for short circuits in the remote controller wiring If LED2 is lit wire the remote controller again and 3 Remote controller failure if LED2 is blinking the remote controller is faulty if LED2 is lit faulty wiring of the remote controller has been corrected 6 No water at hot tap 1 Cold main off 1 Check and open stop cock 2 Strainer blocked 2 Isolate water supply and clean strainer 7 Cold water at tap 1 Hot water run out 1 Ensure DHW mode is operating and wait for DHW tank to re heat 2 Heat pump not working 2 Check heat pump consult outdoor unit service manual 3 Booster heater cut out tripped 3 Check booster heater thermostat and press reset button if safe If the heater has been operated with no water inside it may have failed so please replace it with a new one 4 The earth leakage circuit breaker for booster 4 Check the cause and reset if safe heater breaker ECB1 tripped 5 Immersion heater cut out tripped 5 Check immersion heater thermostat and press reset button located on immer sion heater boss if safe If the heater has been operated with no water inside it may have failed so please replace it with a new one 6
14. by ambient temperature Note Be sure to place TH2 where it correctly detects refrigerant piping temp liquid side Because 1 TH2 is required to detect heating subcool correctly 2 Refrigerant temperature of water to refrigerant heat exchanger also needs to be detected for protection purpose 4 3 2 Connecting the flow water temp thermistor THW1 ca ble and the return water temp thermistor THW2 cable The THW1 and the THW2 cables share a connector and the connector connects to CNW12 connector on FTC2B When the THW1 and THW2 cable are too long connect to THW1 and THW2 terminal TB143 1 2 and 3 4 after cut them to the appropriate length or bundle the excess cable outside the FTC2B unit Do not bind the wires in the FTC2B unit lt Thermistor position gt Place THW1 on water piping water outlet side after booster heater and THW2 on the water inlet side It is recommended to protect the thermistor with heat insulating materials so as not to be affected by ambient temperature Note Be sure to attach THW1 where it correctly detects Flow temp water oulet side 4 3 3 Connecting the actual DHW tank thermistor THW5 cable Connect the THW5 cable to the CNW5 connector on FTC2B if the DHW tank is available When the THW5 cable is too long connect to THW5 terminal TB143 7 8 after cut them to the appropriate length or bundle the excess cable outside the FTC2B unit Do not bind the wires in the FTC2B unit lt Thermisto
15. condense temperature is less than 58 max frequency operation with the outside temperature 7 C D B 6 W B 3 Heat exchanger internal capacity Heat exchanger internal capacity must be within the capacity range shown below If the heat exchanger below the minimum capacity is connected it may result in the back flow of liquid or the failure of the compressor If the heat exchanger above the maximum capacity is connected it may result in the deficiency in performance due to lack of refrigerant or overheating of the com pressor Minimum capacity 10 x Model capacity cm Maximum capacity 30 x Model capacity cm e g When connecting to PUHZ HRP 700 VHA Minimum capacity 10 x 100 1000 cm Maximum capacity 30 x 100 3000 cm Model capacity 35 50 60 71 100 125 140 200 250 Maximum capacity cm 1050 1500 1800 2130 3000 3750 4200 6000 7500 Minimum capacity cm 350 500 600 710 1000 1250 1400 2000 2500 4 Contamination maintenance 1 Wash the inside of heat exchanger to keep it clean Be sure to RINSE not to leave flux Do not use chlorine detergent when washing 2 Be sure that the amount of contamination per unit cubic content of heat transfer pipe is less than the following amount Example In case of 9 52 mm Residual water 0 6 mg m Residual oil 0 5 mg m Solid foreign object 1 8 mg m Thermistor position Refer to 4 3 Notes Install the hyd
16. e BR So FTC2B Outdoor unit earth 2 1 x Min 1 5 5 2 FTC2B Outdoor unit S1 S2 3 AC230V of FTC2B Outdoor unit S2 S3 kri DC24V 4 1 Electrical connection All electrical work should be carried out by a suitably qualified technician Failure to comply with this could lead to electrocution fire and death It will also invalidate product warranty All wiring should be according to national wiring regulations Connections should be made to the terminals indicated in the following figures de pending on the phase When the wires are wired to adjacent terminals use ring terminals and insu late the wires Notes 1 Do not run the low voltage cables through a slot that the high voltage cables go through 2 Do not bundle power cables together with other cables 3 Bundle cables as Fig 4 1 1 by using clamps FTC2B powered via outdoor unit 1 If the installed earth leakage circuit breaker does not have an over current protection function install a breaker with that function along the same power line 2 Affix label A that is included with the manuals near each wiring diagram for FTC2B and outdoor units Note In accordance with IEE regulations the circuit breaker isolating switch located on the outdoor unit should be installed with lockable devices health and safety 1 A breaker with at least 3 0 mm contact separation in each pole shall be pro vided Use earth leakage breaker NV The
17. for wiring Connections must be made securely without tension on the terminals If cables are connected or installed improperly It may result in overheating or fire Terminal block cover panel of the unit must be firmly fixed If the cover panel is mounted improperly dust and 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 an authorized technician to install them If accessories are improperly installed it may cause electric shock or fire Do not remodel the unit Consult an installer for repairs If alterations or repairs are not performed correctly it may cause electric shock or fire The user should never attempt to repair the unit or transfer it to another location If the unit is installed improperly it may cause electric shock or fire If the FTC2B unit needs to be repaired or moved ask an installer or an authorized technician During installing a heat pump system keep water from splashing on the FTC2B unit When installing sensors and parts do not expose the terminals 1 1 Before installation Environment Caution Do not install the FTC2B unit in outdoor location as it is designed for indoor installation only Otherwise electric shock or breakdown may be caused by water drop wind or dust Do not use the unit in an unusual environment If the FTC2B unit is installed or exposed to steam volatile oi
18. parts installation Make sure to check the followings for your safety when designing a system These are the minimum requirement for the safe use of FTC2B unit Parts name Requirement Booster heater General Consider necessity and capacity of booster heater to meet the following points 1 Heating capacity and flow water temperature should always be sufficient 2 System can increase the temperature of the stored water in tank to inhibit legionella bacterium growth Control Power for Current 0 5A Max 10mA Min Power supply 230V AC Contactor Use a relay Connect the surge absorber according to the load at site Separate power for Install an earth leakage circuit breaker for heater separate from control power Heater When using two booster heaters booster heater 1 capacity must be less than that of booster heater 2 When using a single booster heater use booster heater 1 Heater capacity Breaker wiring recommended lt 1 Phase gt lt 3 Phase gt Description Power Total capacity Breaker Wiring Description Power Total capacity Breaker Wiring supply BH1 BH2 supply BH1 BH2 Booster heater N 230V 2 kW 2 kW 0 kW 16A 2 5 i oos er ea er mm Booster heater 3 400V 9 kW 8 KW 6 kW 16 A 25mm Primary circuit 50Hz 6 kW 2 kW 4 kW 32A 6 0 mm Primary circuit 50Hz When installing a booster heater with the capacity of bigger than shown above
19. source is available Avoid locations where combustible gases may leak be produced flow or accu mulate Select a level location that can bear the weight and vibration of the unit Avoid locations where the unit is exposed to oil steam or sulfuric gas Do not install in location that is hot or humid for long periods of time 2 3 Installing the FTC2B unit Fig 2 3 1 2 3 2 2 3 3 2 3 4 1 Remove 2 screws Screw from FTC2B unit and remove the cover See Fig 2 3 1 2 Install the 4 screws locally supplied in the 4 holes O Hole To prevent the unit from falling off the wall select the appropriate screws locally supplied and secure the base horizontally to the appropriate wall location See Fig 2 3 2 Screw Cover O Hole for installation Weight Allowable ambient temperature Allowable ambient humidity 2 4 kg ACCESSORIES 0 8 kg 0 to 35 8096 RH or less Unit mm 336 TES 313 11 5 69 oy 72 E S TB142 141 TB6 KR ST 8 3 ELECTRIC WIRE INLET lt Fig 2 3 3 gt When installed on a wall Lower side Slide the control box cover Pull the cover to
20. the until the bottom of the cover front and remove it comes into contact with the bottom of the control box Front gt Top Bottom Top lt Fig 2 3 4 gt 3 System The FTC2B is designed for use with a number of heat pump systems Please refer to the following table to find the relevant installation information for your system 3 1 First step Electrical work Mode select Temp setting System diagram Power supplies Operation mode input Remote controller Remote controller Outdoor unit FTC2B Remote controller Outdoor unit only 4 1 Remote controller only 742 Local controller Remote controller Outdoor unit only Remote controller External input 4 1 and external input Contact signal Outdoor unit 42 FTC2B 44 4 4 1 Local controller ON OFF MODE Remote controller E Local controller External input Contact signal Local controller External input Analog signal Outdoor unit FTC2B Local controller ON OFF MODE Temp Outdoor unit only gt 4 1 External input and analog input gt 44 4 4 1 4 4 2 3 System 3 2 Second step Thermistor setting Outdoor unit type Split type Packaged type Domestic hot water tank DHW tank Outdoor unit type DHW
21. 4 32 1 PUHZ SW120 20 1 45 9 PUHZ SW175 27 3 64 2 PUHZ SW190 32 1 80 3 PUHZ SHW80 10 2 22 9 PUHZ SHW112 14 4 32 1 PUHZ SHW140 17 9 40 1 PUHZ SHW230 28 7 68 9 The water velocity in pipes should be kept within certain limits of material to avoid erosion corrosion and excessive noise generation e g Copper pipe 1 5m s 3 System From the previous page Water circulation pump 1 Packaged type units Bl Heating PUHZ W50 19 0 17 0 15 0 13 0 11 0 9 0 7 0 5 0 Available range Return water temp 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 Water flow rate L min PUHZ HW112 140 25 0 23 0 21 0 19 0 17 0 15 0 13 0 11 0 9 0 7 0 5 0 1 14 0 19 0 Available range Return water temp 24 0 29 0 Water flow rate L min 34 0 39 0 2 Split type units Heating PUHZ RP35 50 1 PUHZ SW40 50 Available range Return water temp 11 0 Water flow rate L min 13 0 15 0 17 0 19 0 PUHZ HRP100 125 3 PUHZ SHW112 140 3 PUHZ RP100 125 140 3 PUHZ SW100 120 3 Available range Return water temp 5 0 1 12 0 16 0 20 0 24 0 28 0 32 0 36 0 40 0 44 0 Water flow rate L min 48 0 1 When the connected plate heat exchanger is ACH 30 30 made by ALFA LAVAL 2 When the connected plate heat exchanger is ACH 70 30 made by ALFA LAVAL 3 When the c
22. FF SW1 7 Cooling mode function Inactive Active OFF SW1 8 Automatic change over mode function Active Inactive OFF Heating mode lt DHW mode SW1 9 Automatic change over mode function Active Inactive OFF Cooling mode DHW mode SW1 10 Heat pump maximum outlet water temp 55 60 1 SW2 SW2 1 DHW temparature drop 10deg 20deg OFF SW2 2 Operation in DHW mode Eco Nomal OFF SW2 3 Economy setting for water circulation pump Inactive Active OFF SW2 4 Legionella prevention mode setting SW2 4 SW2 5 Operation ON OFF OFF Activate every 1 times DHW operations ON OFF Activate every 15 times DHW operations SEN OFF ON Activate every 150 times DHW operations ON ON Activate by IN2 SW2 6 Legionella prevention hot water temp 60 C 65 C OFF SW2 7 Immersion heater usage in DHW mode Used Not used OFF SW2 8 Booster heater usage in Heating mode Used Not used OFF SW2 9 Booster heater usage in DHW mode Used Not used OFF SW2 10 Heater delay timer in DHW mode 15min 30min OFF SW3 SW3 1 3 way valve control during defrost in Heating mode OFF Heating circuit ON DHW circuit OFF SW3 2 Water circulation pump manual operation OFF ON OFF SW3 3 3 way valve manual operation OFF ON OFF SW3 4 Room thermostat input Ana IN1 logic change Operation stop at thermostat short Operation stop at thermostat open OFF SW3 5 Comp OFF for mode change DHW Heating Inactive Active OFF SW3 6 Flow switch input IN3 logic change Failure detection at flow swit
23. HW1 NEED 22222249 4 4 2 External inputs Analog signal 4 20mA 1 5V 0 10V THW2 714 Connect the transmission cables to No 11 and 12 on the terminal block TB143 TH2 comi 5 No 11 on the terminal block TB143 Plus side BE 5 No 12 on the terminal block TB143 Minus side Reference side THW5 1s Thermostat 4 20mA 1 5V 0 10V ES H E Wiring specification and field supply parts Remote controller UB Item Name Model and specifications External inputs External inputs Use sheathed vinyl coated cord or cable function wire Max 10m Wire type CV CVS or equivalent Wire size Stranded wire 0 5 mm to 1 25 mm Solid wire 20 65 mm to 21 2 mm Switch Non voltage a contact signals 4 20mA 1 5V 0 10V setting Remote switch minimum applicable load 12V Flow temp DC 1mA No 2 Temp 7 449 5435 5 No 1 Temp L Stop Analog signal 4 20mA 4mA 20mA 1 5V OV 1V 5V 0 10V QV 10V 15 4 Electrical work 4 4 3 Outputs Name Terminal block Item DRE ON Signal Current Max total current OUT1 TB141 1 2 Water circulation pump output OFF ON 230V AC 0 5A Max 10mA Min Relay OUT2 TB141 3 4 Booster heater 1 output OFF ON 230V AC 0 5A Max 10mA M
24. Mode amp Temp All none Mode skip DHW Used Not used Skipped Used Heating Used Not used Skipped Used Heating Eco Used Not used Skipped Used Cooling Used Not used Skipped Used Holiday Used Not used Skipped Used Temp range DHW 20 60 20 60 C Heating 20 60 C 20 60 C Cooling 5 25 C 5 25 C Temp offset setting DHW Heating 15 16 gt 6 ube Cooling 151586 0 Temp Analog signal DHW Heating Target temp of low signal point 20 C 20 90 C Target temp of hi signal point RS d soie Cooling Target temp of low signal point BG 20 90 C Target temp of hi signal point be d GR SE 29 8 Troubleshooting lt Troubleshooting by inferior phenomena gt No Fault symptom Possible cause Explanation Solution 1 Remote controller 1 There is no power supply to remote controller 1 Check LED2 on FTC2B display is blank i When LED2 is lit Check for damage or contact failure of the remote controller wiring ii When LED2 is blinking Refer to No 5 below iii When LED2 is not lit Refer to No 4 below 2 Poweris supplied to remote controller 2 Check the following however the display on the remote controller Disconnection between the remote controller cable and the FTC2B control does not appear board Failure of the remote controller if Please Wait is not displayed Refer to No 2 below if Please Wa
25. ater Refrigerant LIQUID side Outdoor unit Outdoor unit THw2 Water INLET side Refrigerant piping Water piping Water piping Ka PACKAGED type 1 Refrigerant water HEX with a refrigerant water HEX inside SPLIT type without a refrigerant water HEX inside 1 Refrigerant water HEX SPLIT type outdoor unit with booster heater PACKAGED type outdoor unit with booster heater Not necessary dj Water OUTLET ater OUTLET side Refrigerant LIQUID side after booster heater after booster heater Outdoor unit Outdoor unit Not necessary Water INLET side THW2 Water INLET side Refrigerant piping Water piping Water piping SPLIT type T PACKAGED type 1 Refrigerant water HEX without a refrigerant water HEX inside 1 Refrigerant water HEX with a refrigerant water HEX inside Fig 4 3 2 14 4 Electrical work cepa Eos 4 4 Connecting external inputs outputs QAQIR FTC2B can be operated by following external input LED2 LED4 When the wires are wired to adjacent terminals use ring terminals and insu late the wires
26. ay mode a Displayed when Holiday mode activated 2018 M 4 Displayed when Heat pump is running Jun 2013 11 23AM Ye PEFFER S Ep Displayed when defrosting d i Qh S an 5 Restriction for A Displayed when the preset temperature b preset tempera v range is not restricted ture range Displayed when the preset temperature 5 is restri 5 range is restricted CDM d 6 Operation mode DHW DH 1 M 6 5m Ut n sdOc Heating ECO D Current Current water temperature temperature 3 Target Target flow temperature temperature 24 7 Remote controller operation lt Remote controller menu tree gt User and installer Installer Main Main menu bss 2 5 Water temp setting LLL EL gt DHW gt Heating Le Cooling t gt Holiday gt Compensation curve F3 F4 pm Preview gt Edit Low outdoor ambient temp point Sees gt Edit Low outdoor ambient temp point gt Initial settings gt Date Time gt Language CIE m gt Temp display gt Contact number gt Time display gt Main Sub gt Service Password protected r gt Function setting Eie Sie gt Restriction
27. be inputted via the analogue signal from the local controller SW1 8 and SW1 9 must be switched to ON IMPORTANT NOTE In this system the operation mode must be switched by a local controller which can output separate signals for each operation mode In addition the target temperature in each operation mode must be sent by analog signal from the local controller SW1 1 OFF SW1 2 ON SW1 8 ON SW1 9 ON or SW1 1 ON SW1 2 ON SW1 8 ON SW1 9 ON Local system controller External input Flow switch 7777777777 IN1 IN2 IN3 IN4 INS ING J IN7 IN8 Emergency Legionella Flow Cooling Heating Heating DHW Holiday prevention switch TH2 Ana IN2 Analog input Water 1 circulation Y PUMP Booster Booster 3 port Error heater 2 H valve Y Immersion heater 1 heater Defrost 20 5 Dip switch setting 5 4 2 DHW mode setting Set Dip SW 2 1 to set DHW max temparature drop Difference in temperature be tween DHW max temperature Desired temperature of stored hot water and the temperature at which DHW mode restarts Dip SW 2 1 OFF 10 deg ON 20 deg Setting Set Dip SW 2 2 to operation in DHW mode Dip SW 2 2 OFF Eco ON Normal Setting DHW mode can run in either Normal or Eco mode No
28. breaker shall be provided to ensure disconnection of all active phase con ductors of the supply 2 Max 45 If 2 5 mm used Max 50m If 2 5 mm used and S3 separated Max 80 m 3 The values given in the table above are not always measured against the ground value Notes 1 Wiring size must comply with the applicable local and national codes 2 FTC2B outdoor unit connecting cords shall not be lighter than polychloro prene sheathed flexible cord Design 60245 IEC 57 3 Install an earth longer than other cables 4 Electrical work 4 2 Connecting the remote controller 4 2 1 Connect the remote controller cable to FTC2B Connect the remote controller cable to 13 and 14 on the terminal block TB143 on the FTC2B controller lt Fig 4 2 1 gt Wiring wire No x size mm 2 x 0 3 non polar The 5 m wire is attached as an accessory 500 m Wiring size must comply with the applicable local and national codes Circuit rating 12V DC Circuit rating is NOT always against the ground Notes i d Wiring for remote controller cable shall 5 cm or more apart from power 4 source wiring so that it is not influenced by electric noise from power source wiring Do not insert remote controller cable and power source wiring in the same conduit Refer to Fig 4 1 1 lt Fig 4 2 1 gt When wiring to TB143 use the ring type terminals and insulate them from the cables of adjoining terminals Remote contr
29. cal controller and our remote controller are used for system control Target temperatures for each mode are set with remote controller A local controller is used to select the running mode Automatic change over mode is available when SW1 8 and SW1 9 is OFF and the FTC2B receives external signals for Heating or Heating ECO or Cooling and DHW at the same time from the local controller Automatic change over mode is not available when SW1 8 and SW1 9 is ON lt IMPORTANT NOTE gt In this system the operation mode must be switched by a local control ler which can output separate signals for each operation mode This can be realised by using a schedule timer and relays SW1 1 ON SW1 2 OFF SW1 8 OFF SW1 9 OFF or SW1 1 ON SW1 2 OFF SW1 8 ON SW1 9 ON Local system controller External input switch IN Emergency Legionella Flow Cooling Heating Heating DHW Holiday prevention switch ECO TH2 TH2 THW1 Ana IN1 THW2 Room thermostat THWS Y Y Y Y Water Booster 1 3 port M Error circulation heater 2 valve pump Y Booster Immersion Defrost ooo heater 1 heater Remote controller Example 4 Only a Local controller is used for system control The system operates in the same way as Example 3 except that the target temperatures for each mode must also
30. ch short Failure detection at flow switch open OFF SW3 7 Emergency mode Normal Emergency mode Heater only operation OFF 2 Heater only operation To be activated only when powered ON SW3 8 Freeze protection function Active Inactive OFF SW3 9 Thermo differential during comp cycling ON OFF Target temp 3deg Target temp 5deg OFF prevention operation SW3 10 OFF SW6 5 6 1 Analog input setting Swe SW62 Operation OFF OFF OFF 0 10V or Not used ON OFF ids OFF ON 1 5V 4 20mA Note 1 When the FTC2B is connected with a PUHZ RP outdoor unit of which maximum outlet water temperature is 55 C Dip SW1 10 must be changed to OFF k2 If emergency mode is no longer required return the switch to OFF position 17 5 Dip switch setting 5 2 Outdoor unit type Set Dip SW 1 6 to set the outdoor unit type 5 3 Functions setting Set Dip SW 1 3 to set whether the system has a DHW tank Dip SW 1 6 Setting Note Dip SW 1 3 Setting Note OFF Split type Necessary to connect TH2 OFF WITH DHW tank Necessary to connect THW5 ON Packaged type Not necessary to connect TH2 ON WITHOUT DHW tank Not necessary to connect THW5 Dip SW 1 10 Setting OFF 55 C ON 60 C When the outdoor unit is a PUHZ RP series set the Dip SW 1 10 to OFF other than that set the Dip SW 1 10 to ON lt Summary of Function setting gt W
31. cut off thermostat qv tot o Earth leakage circuit breaker for booster heater x X e Cut off thermostat Contactor or relay J d for protecting booster heater K Contactor or 1 Contactor or q relay for relay for booster booster heater 2 heater 1 L OUT2 E XTB141 3 4 Booster heater1 7 P Indirect cut off Booster heater2 thermostat 16 Contactor or relay for protecting lt Fig 4 5 2 gt OUT3 TB141 5 6 1 Do not drive the pump directly heater and valve by these output signals 2 Connect the surge absorber according to the load at site 4 5 Wiring for heater lt Care to be taken when connecting a booster heater s gt When the connected booster heater s has a built in direct cut off thermostat per form wiring according to Fig 4 5 1 When the connected booster heater s has a built in indirect cut off thermostat perform wiring according to Fig 4 5 2 lt Care to be taken when connecting an immersion heater gt The initial setting assumes that the connected immersion heater has a built in di rect cut off thermostat lt Fig 4 5 3 gt lt Wiring for immersion heater with a built in direct cut off thermostat gt Earth leakage circuit breaker for immersion heater Contactor or
32. duct Hinweis Die Seriennummer befindet sich auf dem Kennschild des Produkts Remarque Le num ro de s rie de l appareil se trouve sur la plaque du produit Opmerking het serienummer staat op het naamplaatje van het product Nota El n mero de serie se encuentra en la placa que contiene el nombre del producto Nota il numero di serie si trova sulla targhetta del prodotto Nota o n mero de s rie encontra se na placa que cont m o nome do produto Bem rk Serienummeret st r p produktets fabriksskilt Obs Serienumret finns p produktens namnpl t Merk Serienummeret befinner seg p navneplaten til produktet Huomautus Sen sarjanumero on tuotteen nimikilvess Directives Directivas Richtlinien Direktiver Directives Direktiv Richtlijnen Direktiver Directivas Direktiivit Direttive 2006 95 Low Voltage 2004 108 EC Electromagnetic Compatibility Our authorized representative in EU who is authorized to compile the technical file is as follows Unser autorisierter Vertreter in der EU der erm chtigt ist die technischen Daten zu kompilieren ist wie folgt Notre repr sentant agr e dans L UE qui est autoris compiler le fichier technique est le suivant Onze geautoriseerde vertegenwoordiger in de EU die gemachtigd is het technische bestand te compileren is als volgt Nuestro representante autorizado en la UE que est autorizado para compilar el archivo t cnico es el siguiente Il nostro rivenditore au
33. er blockage Water circulation pump function Error code may display during filling of primary circuit complete filling and reset error code L4 Blink Blink DHW tank water temperature overheat protection Check the immersion heater and it s contactor L5 Blink Light down Thermistor Return water temp THW2 Check resistance across the thermistor L6 Light up Blink Circulation water freeze protection See Action for L3 L8 Light down Lightup Heating operation error Re attach any thermistors that have become dislodged 9 Light u Light down Low primary circuit flow rate detected by flow switch flow See Action for L3 If the flow switch itself does not work replace it E SE 9 switch Caution The pump valves may be hot please take care P1 Blink Light down Thermistor Flow water temp THW1 failure Check resistance across the thermistor P2 Light down Blink Thermistor Ref liquid temp TH2 failure Check resistance across the thermistor e See Action for L3 P6 Blink Light up Anti freeze protection of plate heat exchanger Check for correct amount of refrigerant P9 Blink Light down Thermistor Tank water temp THW5 failure Check resistance across the thermistor Er ES Communication failure between remote controller and FTC2B Check connection cable for damage or loose connections E1 E2 Remote controller board error Replace remote controller Check that the outdoor unit has not been turned off E6 EF Commun
34. er temp setting Set the initial value of the set water temperature for following modes DHW mode Heating mode Cooling mode Holiday mode The set water temperature is changeable in main screen during operation E Compensation curve During late spring and summer usually the demand for space heating is reduced To prevent the heat pump from producing excessive flow temperatures for the primary circuit the compensation curve mode can be used to maximise efficiency and reduce running costs The compensation curve is used to restrict the flow temperature of the primary space heating circuit dependent on the outdoor ambient temperature The FTC2B uses information from both an outdoor ambient temperature sensor and a temperature sensor on the primary circuit supply to ensure the heat pump is not producing excessive flow temperatures if the weather conditions do not require it Preview You can check the target water temperature in compensation curve Select outdoor ambient temp with F3 and F4 buttons Edit Installer level Pressing F1 or F2 will cause the relevant edit screen to be displayed Press F1 to edit the flow temperature of Lo outdoor ambient temperature point Press F2 to edit the flow temperature of Hi outdoor ambient temperature point See the following for more detailed explanation of editing In the parameter edit screen the flow temperature and outdoor ambient temperature for the compensation curve graph can be set and alt
35. ered for the 2 extremes of Lo and Hi 1 Press F1 and F2 to change the flow temperature y axis of compensation curve 2 Pressing F1 will lower the desired flow temperature for the set outdoor ambient temperature 3 Pressing F2 will raise the desired flow temperature for the set outdoor ambient temperature 4 Press F3 and F4 to change the outdoor ambient temperature x axis of compensation curve 5 Pressing F3 will lower the outdoor ambient temperature for the set flow temperature 6 Pressing F4 will raise the outdoor ambient temperature for the set flow temperature 26 Please wait 201 Water temp Cem EN NN Icon Description Water temp Compensation curve Initial settings E By S Service D 22 Jun 2013 11 23AM 46 60 D 40 20 Bloc z2955 1020 35483 EU sm WAS 3 Iw 22 Jun 2018 11 23AM 46 Em 60 40 20 25 15 1020 3540 7 Remote controller operation E Holiday mode From the main menu screen press button E the holiday mode activation screen will be displayed Be careful not to hold down button E for too long as this will turn off the controller and system Once the holiday mode activation screen is displayed you can select the duration that you would like holiday mode to run for Use buttons F2 F3 and F4 to input the date which you would like holiday mode to activate or deactivate for space heating Bl Se
36. es to the other mode mode after power recovery ex Heating mode 22 When the water in the circulation circuit is unduly Normal operation 31 9 Supplementary information 9 1 Refrigerant collecting pumpdown for split model systems only When operating pumpdown do not enter the signals IN1 IN2 IN4 IN5 IN6 IN7 IN8 for external inputs refer to 4 4 1 And if the system is set in Dip SW1 1 1 2 is OFF ON or ON ON pumpdown operation cannot be started Set Dip SW1 1 1 2 to OFF OFF or ON OFF For more details refer to Refrigerant collection in the outdoor unit instal lation manual or service manual 32 Local application factors This FTC2B is designed to connect Mr Slim Ecodan inverter outdoor unit of MITSUBISHI ELECTRIC to local systems Please check the following when designing the lo cal system MITSUBISHI ELECTRIC does not take any responsibility for the local system design Heat exchanger 1 Withstanding pressure Designed pressure of outdoor unit is 4 15 MPa Following must be satisfied for burst pressure of connecting application Burst pressure More than 12 45 MPa 3 times more than designed pressure 2 Performance Secure the heat exchanger capacity which meets the following conditions If the conditions are not met it may result in malfunction caused by the protection opera tion or the outdoor unit may be turned off due to the operation of protection system In case of hot water supply
37. f the correct voltage 8 5 12 VDC is not supplied to the remote controller If this is the case check the remote controller wiring and FTC2B units 28 TEMP OFFSET COOLING temperature offset setting for Cooling Target temp Upper Lower Analog signal 4mA 20mA 1V OV 7 Remote controller operation E Should settings be changed from default please enter 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 Remote controller screen Parameters Default Field setting Notes setting Main DHW max temp 20 60 C 50 C Heating mode 20 60 C 45 C Cooling mode 5E2520 1516 Holiday mode Active Non active Set time Menu Water temp setting DHW 20 60 C 50 C Heating 20 60 C 45 Cooling 5 25 C 15 C Holiday 20 45 C 35 C Compensation curve Low outdoor ambient Outdoor ambient temp 15 34 C 1516 Target flow temp 20 60 C 50 C Hi outdoor ambient Outdoor ambient temp 14 35 C 35 C temp point Target flow temp 20 60 C 25 C Initial settings Language ENG GER SP IT FR SW JP ENG GE JEE ise Temp display ON OFF OFF Time display hh mm hh mm AMPM AMPM hh mm hh mm Service Restriction Operation lock none
38. g mode Dip SW 1 7 Setting OFF Inactive ON Active When Dip SW 1 7 is OFF cooling mode is not available Set Dip SW 1 8 to set activate or deactivate automatic change over mode DHW lt Heating Dip SW 1 8 Setting OFF Active ON Inactive Set Dip SW 1 9 to set activate or deactivate automatic change over mode DHW lt Cooling Dip SW 1 9 Setting OFF Active ON Inactive Automatic change over mode SW1 1 OFF SW1 2 OFF Mode System operation Heating SW1 8 OFF Heating and DHW mode Automatic change over mode SW1 8 ON mode only Heating SW1 8 OFF Heating ECO and DHW mode Automatic change over mode SW1 8 Heating ECO mode only Cooling SW1 9 OFF Cooling and DHW mode Automatic change over mode SW1 9ON Cooling mode only DHW DHW Domestic hot water mode only Holiday Holiday mode only lt SW1 1 ON SW1 2 OFF or SW1 1 OFF SW1 2 ON or SW1 1 ON SW1 2 ON Mode System operation Heating SW1 8 OFF Heating mode only 1 SW1 8 Heating mode only Heating SW1 8 OFF Heating ECO mode only 1 SW1 8 ON Heating ECO mode only Cooling SW1 9 OFF Cooling mode only 1 SW1 9ON Cooling mode only DHW DHW Domestic hot water mode only 1 Holiday Holiday mode only 1 Automatic change over mode is available only when SW1 1 1 2 is set ON OFF and the FTC2B receives ex
39. h could cause malfunction to the remote controller 8 Fit the lead wires into the clamps A Caution Hold the wires in place with clamps to prevent excessive strain from being L N Clamps applied on the terminal block and causing cable breakage MO Hold the wires in place with clamps lt Fig 4 2 9 gt 11 4 Electrical work u Check that the cover is securely installed and not ifted lt Fig 4 2 10 gt Seal the gap between the cable and the access hole with putty Heeler Thread the remote controller cable through the cable access hole at the top of the remote controller lt Fig 4 2 11 gt 9 Fit the front cover and the cosmetic cover onto the back cover The front cover assembly fitted with the cosmetic cover at factory shipment has two tabs on top Hook the tabs onto the back cover and snap the front cover onto the back cover into place Check that the cover is securely installed A Caution When the front cover is correctly attached to the back cover a click is heard If the cover is not clicked into place it may fall off Direct wall installation when routing the remote controller cable along the wall surface Thread the remote controller cable through the cable access hole at the top of the remote controller Seal the gap between the cable and the access hole with putty Use a cable cover Fig 4 2 12 12 e Disassembling the front c
40. he room temperature rises 3 way valve failure Check the 3 way valve during DHW operation 14 Water discharges from 1 If continual pressure relief valve may be 1 Turn the handle on the pressure relief valve to check for foreign objects in pressure relief valve damaged it If the problem is not still solved replace the pressure relief valve with a Primary circuit new one 2 If intermittent expansion vessel charge may 2 Check pressure in expansion vessel have reduced bladder perished Recharge to 1 bar if necessary If bladder perished replace expansion vessel with a new one 15 Water discharges from 1 If continual pressure reducing valve not 1 Check function of pressure reducing valve and replace if necessary pressure relief valve working Sanitary circuit 2 If continual pressure relief valve seat may 2 Turn the handle on the pressure relief valve to check for foreign objects be damaged inside If the problem is not still solved replace the pressure relief valve 3 If intermittent expansion vessel charge may 3 Check gas side pressure in expansion vessel have reduced bladder perished Recharge to correct precharge pressure if necessary If bladder perished replace expansion vessel with a new one with appropriate pre charge 4 DHW tank may have subjected to backflow 4 Check pressure in DHW tank If pressure in DHW tank is similar to that in incoming mains cold water supply that merges with incoming main
41. hen Dip SW 1 3 is ON DHW and legionella prevention mode is not available Set Dip SW 1 10 to set the heat pump maximum outlet water temperature Set Dip SW 1 4 to set whether the system has an immersion heater Dip SW 1 4 Setting OFF WITHOUT immersion heater ON WITH immersion heater Set Dip SW 1 5 to set the booster heater function Dip SW 1 5 Setting OFF For heating and DHW ON For heating only or WITHOUT booster heater Dip SW 1 3 DHW tank Dip SW 1 4 Immersion heater Dip SW 1 5 BH function System diagram OFF WITH DHW tank OFF WITHOUT immersion heater OFF For heating and DHW 3 way valve THW1 Booster heater Y Laus Heat emitter OFF WITH DHW tank ON WITH immersion heater OFF For heating and DHW Immersion heater 3 way valve THW1 Booster heater Heat emitter OFF ON WITH DHW tank WITHOUT immersion heater For heating only 3 way valve THW1 heater Heat emitter gt ON ON WITH DHW tank WITH immersion heater For heating only Immersion heate 3 way valve THW1 V Booster heater A Heat emitter mm Laus ON WITHOUT DHW tank THW1 Booster heater Heat emitter SS Laus 18 5 Dip switch setting ae SS SF 5
42. her 1 2 3 see below 4 Press CONFIRM Note Changes can ONLY be made to Mode 1 Mode 1 Setting number meanings 1 Power failure automatic recovery NOT available 2 Power failure automatic recovery AVAILABLE Approx 4 minute delay after power is restored 3 No function Restriction Operation lock Restrict the operation of switching ON OFF changing the operation mode and the set temperature with remote controller Select a option from none Mode amp Temp and then press CONFIRM The meanings of the options are as indicated below none No restriction Mode amp Temp Restrict changing the operation mode and the set temperature All Restrict switching ON OFF changing the operation mode and the set temperature Note Holiday mode button is available regardless of the operation lock setting Mode skip Set the usage of each operation mode using remote controller Tick the modes that will be used You cannot select a mode that is without tick mark Temp range Restrict the range of set temperature that is made using remote controller Select the mode you wish to set set the lower limit and higher limit of set temperature then press CONFIRM P 22 Jun 2013 11 23AM 06 22 Holiday Mode activation screen Y 22 Jun 2018 11 23AM FUNCTION SETTING Ref add H Unitt 8022 1 2 3 4 AII zs AEA SCH NE 4 22 2015 11 23AM 0 Unit Grp 1 3
43. ication failure between FTC2B and outdoor unit Check connection cable for damage or loose connections Refer to outdoor unit service manual HS P Outdoor unit failure Refer to outdoor unit service manual Note For the system using a local controller External input Contact signal you cannot cancel an error with the remote controller When all of the IN4 to IN8 inputs are not received the error will be cancelled For description of each LED LED to 3 provided on the FTC2B refer to the following table LED 1 Power for microcomputer Indicates whether control power is supplied Make sure that this LED is always lit LED 2 Power for remote controller Indicates whether power is supplied to the remote controller This LED lights only in the case of the FTC2B unit which is connected to the outdoor unit refrigerant address 0 LED 3 Communication between FTC2B and outdoor unit Indicates state of communication between the FTC2B and outdoor unit Make sure that this LED is always blinking 22 7 Remote controller operation Note Marking for This symbol mark is for EU countries only WEEE This symbol mark is according to the directive 2002 96 EC Article 10 Information for users and Annex IV Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components which can be recycled and re used This symbol means that electrical and elect
44. in Relay OUT3 TB141 5 6 Booster heater 2 output OFF ON 230V AC 0 5A Max 10mA Min Relay OUT4 TB141 7 8 Immersion heater output OFF ON 230V AC 0 5A Max 10mA Min Relay 3A OUT5 TB141 9 10 3 way valve output Heating DHW 230V AC 0 5A Max 10mA Min Relay OUT6 TB141 11 12 Defrost output Normal Defrost 230V AC 0 5A Max 10mA Min OUT7 TB141 13 14 Error output Normal Error 230V AC 0 5A Max 10mA Min N LN LN LN LN LNLNL Wiring specification and field supply parts Item Name Model and specifications External outputs External Use sheathed vinyl coated cord or cable function outputs wire Max 50m 11213415167 1819 10111211314 EE E P Wire type CV CVS or equivalent SE a qb d A EE Wire size Stranded wire 0 5 mm to 1 25 mm Solid wire 20 65 mm to 21 2 SFOS NI a NY Note OUT OUT2 OUT3 OUT4 OUTS OUT6 OUT7 lt Wiring for booster heater with a built in direct cut off thermostat gt Earth leakage 9 circuit breaker for booster heater Contactor or bi MEN relay for i booster heater 2 heater j OUT2 TB141 3 4 Direct cut off 1 1 thermostat Booster heater1 Booster heater2 Fig 4 5 1 OUTS TB141 5 6 Wiring for booster heater with a built in indirect
45. isk of untrained end users altering the settings accidentally there are two access levels to the 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 settings will be displayed but without the edit function This will enable the user to view current settings but NOT change the parameters Installer Level Long press If the MENU button is pressed down for 3 secs the main settings will be displayed with all functionality available The following items can be viewed and or edited dependent on access level Water temp setting Installer level Compensation curve Initial settings Service Password protected Use the F2 and F3 buttons to move between the icons The highlighted icon will appear as a larger version in the cen tre of the screen Press CONFIRM to select and edit the highlighted mode Bi Initial settings From the Initial settings menu the installer can set the following Date Time Language Temp display Contact number Time display Main Sub 1 Use buttons F1 and F2 to move scroll through the menu list When the title is highlighted press CONFIRM to edit 2 Use function buttons appropriate to edit each setting then press CONFIRM to save the setting Note For Main Sub setting select Main Initial setting Do not change the setting to Sub it is not avail able with FTC2B E Wat
46. it is displayed 2 Please Wait remains 1 Please Wait is displayed for up to 6 minutes 1 Normal operation displayed on the remote 3 Communication failure between the remote 2 3 Go to Remote controller check pressing BACK button for 5 seconds Refer to controller controller and FTC2B page 28 3 Communication failure between FTC2B and If OK is displayed conduct the procedures below outdoor unit Check the wiring connections on the outdoor unit control board and the FTC2B control board Ensure S1 and S2 are not cross wired and S3 is securely wired with no damage Replace the outdoor unit and or the FTC2B control board If the messages other than OK is displayed see Remote controller check on page 28 3 The main screen The remote controller operations do not work for a Normal operation appears with a press whilst after the settings are changed in the service The indoor unit is applying updated settings made in the service menu Normal of the ON button but menu This is because the system takes time to operation will start shortly disappears in a second apply the changes 4 LED2 on FTC2B is off When LED1 on FTC2B is also off FTC2B powered via outdoor unit 1 The outdoor unit is not supplied at the rated 1 Check the voltage across the terminals L and N or L3 and N on the outdoor voltage power board When the voltage is not 220 to 240V AC check wiring of the outdoor unit and of the breaker
47. it can be checked via the remote controller 1 With the F1 or F2 button enter the refrigerant address and press the SELECT button 2 Error code and attribute will appear will appear if no error history is available 3 To delete error history press the F4 button on the screen that shows the error history 4 A confirmation screen will appear asking if you want to delete the error history Running information This function shows current temperature and other data of main component parts of both the indoor and outdoor units 1 Press F2 and F3 buttons to set the Ref address 2 Use the function buttons F1 F4 to enter index code for the component to be viewed See the service manual for component index codes 3 Press CONFIRM Error history Error history allows the service engineer to view previous error codes the unit address and the date on which they occurred Up to 16 Error codes can be stored in the history the most recent Error event is displayed at the top of the list To delete an Error history item from Error history screen press F4 button Rubbish bin icon then press F3 button Yes Password protection Password protection is available to prevent unauthorised access to the service menu by untrained persons 1 When password input screen is displayed use buttons F1 and F2 to move left and right between the four digits F3 to lower the selected digit by 1 and F4 to increase the selected digit by 1
48. l including machine oil or sulfuric gas or exposed to briny air the internal parts can be damaged Do not install the unit where combustible gases may leak be produced flow or accumulate If combustible gas accumulates around the unit it may cause fire or explosion When installing the unit in a hospital or in a building where communica tions equipment are installed you may need to take measure to noise and electronic interference Inverters home appliances high frequency medical equipment and radio communications equipment can cause the FTC2B unit to malfunction or to breakdown At the same time the noise and elec tric interference from the FTC2B unit may disturb the proper operation of medical equipment and communications equipment 1 2 Before installation or relocation Caution Be fully careful when moving the units Do not hold the packaging bands Wear protective gloves to unpack and to move it in order to avoid your hands be injured by parts D sure to safely dispose of the packaging materials Packaging materials such as nails and other metal or wooden parts may cause injuries Do not wash the FTC2B unit You may receive an electric shock D 1 3 Before electric work Caution Be sure to install a circuit breaker If it is not installed there may be a risk to get an electric shock For the power lines use standard cables of sufficient capacity Otherwise it may cause a short ci
49. llow the national regulations Expansion Vessel Primary circuit side Expansion Vessel Sanitary water side Follow the national regulations When the water circuit is closed select the expansion vessel according to water quantity of the water circuit necting field supply parts Limits of TOTAL electric current when con Power supply from outdoor unit TOTAL current requirement MUST be X 3A otherwise the fuse on the outdoor unit PCB will blow 4 Electrical work INPUT OUTPUT Remote controller Thermistor lt Fig 4 1 1 gt Wiring for FTC2B Power cables FTC2B lt 1 phase gt ES Outdoor unit D T GR D To control Wiring St S1 board PE Earth 0 BS oan N leakage feoker 62 circuit 53 o tie OE TB6 FTC2B lt 3 phase gt Outdoor unit el SH Power ma supply Earth Wiring 12 contro 3N leakage Een 6 board 400V circuit 50Hz breaker Isolating N switcl D 53 TB6 lt Fig 4 1 2 gt Electrical connections 1 phase 3 phase gt S wel FTC2B Outdoor unit 2 3 x 1 5 polar
50. n that is hot or humid for long periods of time Disposing of the unit When you need to dispose of the unit consult your dealer 23 7 Remote controller operation 7 2 Remote Controller lt Remote controller parts gt Letter Name Function A Screen Screen in which all information is displayed B Menu Access to system settings for initial set up and 4 MITSUBISHI ELECTRIC modifications C Back Return to previous menu D Confirm Used to select or save Enter key lt A E Power Holiday If system is switched off pressing once will turn system on Pressing again when system is switched on will enable Holiday Mode Holding the button down for 3 secs will turn the system off 1 Used to scroll through menu and adjust settings Function is determined by the menu screen visible on screen A F1 4 Function keys 4 When the system is switched off or the power supply is disconnected the water circuit protection functions will NOT operate Please beware that with out these safety functions enabled the water circuit may potentially become exposed to damage lt Main screen icons gt B c D No Item Icon Description 1 Operation prohi bition Mode Su Set temperature 1 2 3 4 2 Operation lock Displayed when the buttons are locked 3 Holid
51. nd cable diameter based on the maximum possible electric current Safety device 1 Install the enclosed thermistor THW5 on the DHW tank Microcomputer detecting temperature for protection 80 2 Use a built in direct cut off thermostat manual reset type Protection device operating temperature must be above 80 Protection device should not operate quickly but water circuit must not boil even when a heater overshoots Reference value Thermostat operation temperature used in our Cylinder unit 85 5 C 3 Connect a pressure relief valve on the sanitary water side Water circulation pump Connect a pump via relay Current 0 5A Max 10mA Min Power supply 230V AC Connect the surge absorber according to the load at site Adjust the pump speed so that the flow rate in the primary circuit is appropriate for the outdoor unit installed see the table and figures below Outdoor heat pump unit Water flow rate range L min Packaged PUHZ W50 6 5 14 3 PUHZ W85 10 0 25 8 PUHZ HW112 14 4 32 1 PUHZ HW140 17 9 40 1 Split PUHZ RP35 5 0 11 8 PUHZ RP50 7 0 17 2 PUHZ RP60 8 6 20 1 PUHZ H RP71 10 2 22 9 PUHZ H RP100 14 4 32 1 PUHZ H RP125 17 9 40 1 PUHZ RP140 20 1 45 9 PUHZ RP200 27 3 64 2 PUHZ HRP200 28 7 68 9 PUHZ RP250 32 1 80 3 PUHZ SW40 5 0 11 8 PUHZ SW50 7 0 17 2 PUHZ SW75 10 2 22 9 PUHZ SW100 14
52. o corners of the switch box with screws Roundhead cross slot screws Remote controller cable See Step 5 m Direct wall installation Thread the cable through the slot provided When mounting the back cover on the wall secure at least two corners of the remote controller with screws Wood screw To prevent the back cover from lifting use top left bottom right corners of the remote controller viewed from the front to secure the back cover to the wall with wall plugs or the like A Caution To avoid causing deformation or cracks to the remote controller do not overtighten the screws and make an additional installation hole s Sa lt Fig 4 2 6 gt 6 Cut out the cable access hole Direct wall installation Cut out the knockout hole indicated with grey in Fig 4 2 7 gt in the cosmetic cover by knife or nipper Thread the remote controller cable from the slot behind the back cover Fig 4 2 7 through this access hole Securely plug the connector into the jack T Plug the lead wire cable into the front cover Plug the lead wire cable coming from the back cover into the front cover A Caution To avoid failures do not remove the controller board protective sheet and the controller board from the front cover After the cable is plugged into the front cover do not hang the front cover as shown in Fig 4 2 8 Otherwise the remote controller cable could sever whic
53. oller profile 8 lt Required clearances surrounding the remote 4 2 2 Installing the remote controller controller 1 The remote controller can be installed either in the switch box or directly on the wall Perform the installation properly according to the method 1 Secure clearances shown in lt Fig 4 2 2 gt regardless of whether installing the remote controller either directly on the wall or in the switch box 2 Prepare the following items in the field Double switch box Thin metal conduit Locknut and bushing Cable cover Wall plug Installation pitch 2 Drill an installation hole in the wall Installation using a switch box lt Fig 4 2 2 gt Drill a hole in the wall for the switch box and install the switch box in the hole Fit the conduit tube into the switch box Direct wall installation Conduit tube Drill a cable access hole and thread the remote controller cable through it Locknut Z Caution Mitch box To prevent entry of dew water and insects seal the gap between the cable and the hole through which the cable is threaded with putty Otherwise elec tric shock fire or failure may result 3 Have the remote controller ready Seal the gap with putty Remove the back cover from the remote controller Remote controller cable ge 4 Connect the remote controller cable to the terminal block on the back cover lt Fig 4 2 3 gt Modify the remote controller cable as sh
54. ommerci le en licht industri le omgevingen declara por la presente bajo su responsabilidad exclusiva que los componentes del sistema de calefacci n refrigeraci n descritos a continuaci n para su uso en zonas residenciales comerciales y para la industria ligera con la presente dichiara sotto la sua esclusiva responsabilit che i componenti dell impianto di riscaldamento raffreddamento descritto di seguito destinato all uso in ambienti residenziali commerciali e industriali atrav s da presente declara sob sua unica responsabilidade que os componentes do sistema de aquecimento arrefecimento abaixo descritos para uso residencial comercial e de industria ligeira erkl rer hermed under eneansvar at de herunder beskrevne komponenter til opvarmning keling til brug i privat boligbyggeri erhvervsomr der og inden for let industri intygar harmed att uppv rmnings nedkylningssystemkomponenterna som beskrivs nedan ar for anv ndning bost der kommersiella milj er och l tt industri erkl rer hermed som sitt ansvar ene og alene at komponentene i varme og kjelesystemet som beskrives nedenfor og som er beregnet for bruk i bolig forretnings og lettindustrimiljger vakuuttaa t ten asiasta yksin vastuussa ett alla kuvatut lammitys jaahdytysjarjestelman osat jotka on tarkoitettu k ytett viksi asuin toimisto ja kevyen teollisuuden ymp rist iss MITSUBISHI ELECTRIC PAC IF032B E Note Its serial number is on the nameplate of the pro
55. onnected plate heat exchanger is ACH 70 40 made by ALFA LAVAL 4 When two ACH 70 40 plate heat exchangers made by ALFA LAVAL are parallel connected Return water temp PUHZ W85 19 0 17 0 15 0 13 0 11 0 9 0 7 0 5 0 10 0 12 0 14 0 Available range Return water temp 16 0 18 0 20 0 22 0 24 0 Water flow rate L min PUHZ HRP71 3 PUHZ SHW80 2 PUHZ RP60 71 2 PUHZ SW75 2 amp Available range E 5 bd E E E 7 0 5 0 1 i i 80 100 120 14 0 16 0 180 200 220 24 0 Water flow rate L min PUHZ HRP200 4 PUHZ SHW230 4 PUHZ RP200 250 4 PUHZ SW175 190 4 Available range 35 0 45 0 55 0 65 0 Water flow rate L min 75 0 85 0 3 way valve Connect a 3 way valve via relay Current 0 5A Max 10mA Min Power supply 230V Connect the surge absorber according to the load at site Flow switch It is required to protect system from the effects of insufficient flow Strainer Magnetic filter water circuit Provide it as required to protect parts from damages caused by iron particles water contamination e g the position before pump and return part from emitters Pressure relief valve Primary circuit side Sanitary water side It is required to protect system from reaching high pressure Select the operating pressure depending on water pressure in the circuit in normal use Fo
56. or any other open flame appliance where it will be exposed to the air discharged from the unit Incomplete combustion may result Do not remove the front panel or the fan guard from the outdoor unit when it is running When you notice exceptionally abnormal noise or vibration stop opera tion turn off the power switch and contact your dealer Caution Do not use any sharp object to push the buttons as this may damage the remote controller Never block or cover the indoor or outdoor unit s intakes or outlets Never insert fingers sticks etc into the intakes or outlets f you detect odd smells stop using the unit turn off the power switch and consult your dealer Otherwise a breakdown electric shock or fire may result If the supply cable is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction con cerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not play with the ap pliance f the refrigeration gas blows out or leaks stop the operation of the air conditioner thoroughly ventilate the room and contact your dealer Do not install in locatio
57. over and the cosmetic cover 1 Remove the cosmetic cover Insert a flat head screwdriver into either of two open slots at the bottom of the remote controller and move the screwdriver handle downward as shown The engagement of the tabs will be released Then pull the cosmetic cover toward the front to remove the cosmetic cover 2 Remove the front cover Insert a flat head screwdriver into either of two open slots at the bottom of the remote controller The subsequent procedure is the same as that of the cosmetic cover Caution Use a 5 mm flat head screwdriver Do not turn the screwdriver forcibly while placing the blade in the slots Doing so could break the covers 4 Electrical work TB 143 THW1 wt na 30 lt Fig 4 3 1 gt 4 3 Connecting the thermistor cables Connect the thermistor for the FTC2B controller 4 3 1 Connecting the refrigerant pipe temp thermistor TH2 cable Connect the TH2 cable to the CN21 connector on FTC2B For split Outdoor unit Connect TH2 For packaged Outdoor unit It is NOT necessary to connect TH2 When the TH2 cable is too long connect to TH2 terminal TB143 5 6 after cut them to the appropriate length or bundle the excess cable outside the FTC2B unit Do not bind the wires in the FTC2B unit lt Thermistor position gt Place TH2 on refrigerant piping liquid side It is recommended to protect the thermistor with heat insulating materials so as not to be affected
58. ovided by local application manufacture Both the Installation Manual and the Operation Manual must be given to the user These manuals must always be kept by the actual users Indicates a part which must be grounded A Warning Carefully read the labels attached to the unit A Warning The unit must not be installed by the user Ask an installer or an authorized technician to install the unit If the unit is installed improperly electric shock or fire may be caused For installation work follow the instructions in the Installation Manual and use tools and pipe components specifically made for use with refrigerant specified in the outdoor unit installation manual The unit must be installed according to the instructions in order to mini mize the risk of damages by earthquakes typhoons or strong winds Improperly installed unit may fall down and cause damages or injuries The unit must be securely installed on a structure that can sustain its weight If the unit is mounted on an unstable structure it may fall down and cause damages or injuries All electric work must be performed by a qualified technician according to local regulations and the instructions given in this manual The unit must be powered by dedicated power lines and the correct voltage and circuit breakers must be used Power lines with insufficient capacity or incorrect electrical work may result in electric shock or fire Only the specified cables can be used
59. own in lt Fig 4 2 5 gt and thread the ca ble from behind the back cover Completely thread the cable to the front so that the unsheathed part of the cable cannot be seen behind the back cover Connect the remote controller cable to the terminal block on the back cover Direct wall installation Seal the gap between the cable and the hole through which the cable is threaded A Caution To prevent electric shock or failure keep the sheath ends or any other foreign objects out of the terminal block Do not use ring terminals to connect the wires to the terminal block on the back cover The terminals will come in contact with the control board and the cosmetic cover which will result in failure Cosmetic cover and front cover Back cover lt Fig 4 2 4 gt The 2 inner wires must not be Completely thread the seen on the back unsheathed portion to the front EN y Sheath 10mm Front Back 6mm Il Thread the cable N Remote controller cable Seal the gap with putty Thread the cable from behind the remote controller Connect the 2 inner wires to the terminal block non polarized lt Fig 4 2 5 gt 10 4 Electrical work Completely seal the gap around 5 Install the back cover Double sSwilch box the cable access hole m Installation using a switch box See Step 2 When installing the back cover in the switch box secure at least tw
60. r position gt Place THW5 on the position where tank water temperature can be detected cor rectly It is recommended to position the thermistor at the mid height of the DHW tank to control DHW heating with this sensor It is recommended to protect the thermistor with heat insulating materials so as not to be affected by ambient temperature Especially for double insulated tank thermistor should be attached to the inner side to detect the water temperature Note Connect the terminals by using the ring terminals and also insulate the ca bles of adjoining terminals when wiring to TB143 Z Caution Do not route the thermistor cables together with power cables The sensor part of the thermistor should be installed where user can not ac cess It should be separated by supplementary insulation from areas the user can access 13 4 Electrical work 4 3 4 Thermistor position and necessity lt Thermistor position and necessity gt Outdoor unit type DHW tank TH2 THW1 THW2 THW5 Present v4 v Vi Vi Split Absent v v ke Present v v A Packaged Absent v Vi v Necessary Connect the thermistor Not necessary The thermistor is not required do not connect SPLIT type outdoor unit with DHW tank and booster heater DHW tank PACKAGED type outdoor unit with DHW tank and booster heater temperature DHW tank temperature Water OUTLET side after booster he
61. raulic filter at the water inlet pipework Inlet water temperature of heat exchanger should be within the range 5 C 55 C Water quality should be to European Directive 98 83 EC standards pH value of 6 5 8 Calcium lt 100 mg L Chrorine lt 100 mg L Iron Manganese lt 0 5 mg L Refrigerant pipe diameter from outdoor unit to refrigerant water HEX Only for SPLIT type Use the pipe with same diameter size as the refrigerant pipe connection diameter of outdoor unit Refer to outdoor unit installation manual Ensure that there is sufficient anti freeze chemical in the water circuit It is recommended to use 7 4 anti freeze to water ratio The water velocity in pipes should be kept within certain limits of material to avoid erosion corrosion and excessive noise generation Be aware and take care of that local velocities in small pipes bends and similar obstructions can exceed the values above e g Copper 1 5 m s Warning Always use water that meets the above quality requirements Using water that does not meet these standards may result in damage to the system pipework and heating components Never use anything other than water as a medium It may cause a fire or an explosion Do not use heated water that is produced by the air to water heat pump directly for drinking or cooking There is a risk to damage your health There is also a risk that installing the water heat exchanger may corrode if the necessary water quali
62. rcuit overheating or fire When installing the power lines do not apply tension to the cables The cables may be cut or overheated resulting in a fire D Make sure to ground the unit Do not connect the ground wire to gas or water pipes lightning rods or telephone grounding lines If the unit is not properly grounded there may be a risk to get an electric shock Make sure to use circuit breakers ground fault interrupter isolating switch B fuse and molded case circuit breaker with the specified capacity If the circuit breaker capacity is larger than the specified capacity break down or fire may result D 1 4 Before starting the test run Caution Turn on the main power switch of the outdoor unit more than 12 hours before starting operation Starting operation immediately after turning on the power switch can severely damage the internal parts Keep the main power switch turned on during the operation period Before starting operation check that all protective parts are correctly in stalled Make sure not to get injured by touching high voltage parts Do not touch any switch with wet hands There may be a risk to get an electric shock After stopping operation make sure to wait at least 5 minutes before turn ing off the main power Otherwise it may cause breakdown 1 5 Electric booster and Immersion heaters A Warning FTC2B has signal outputs for booster heaters however it can not isolate po
63. re check for the following 1 Water leakage in the pipes that connect to the 1 Take the following measures DHW tank Retighten the nuts holding the pipes onto the DHW tank Replace seal materials Replace the pipes 2 Insulation material coming loose or off 2 Fix insulation 3 3 way valve failure 3 Check plumbing wiring to 3 way valve 10 Hot or warm water from cold Heat of hot water pipe is transferred to cold water Insulate re route pipework tap pipe 11 Water leakage 1 Poorly sealed connections of water circuit 1 Tighten connections as required components 2 Water circuit components reaching the end of 2 Replace them as necessary life 12 Heating system does not 1 The temperature sensor does not detect the 1 Check if the temperature sensor is affected by ambient temperature except reach the set temperature water temperature accurately water temperature Heat pump not working Check heat pump consult outdoor unit service manual Booster heater cut out tripped 3 Check booster heater thermostat and press reset button if safe If the heater has been operated with no water inside it may have failed so please replace it with a new one Booster heater breaker tripped 4 Check the cause of the trip and reset if safe Incorrectly sized heat emitter 5 Check the heat emitter surface area is adequate Increase size if necessary 6 3 way valve failure 6 Check plumbing wiring to 3 way valve 13 T
64. relay for immersion heater Direct cut off thermostat Immersion heater lt Fig 4 5 3 gt 5 Dip switch setting 5 1 Dip switch functions Located on the FTC2B 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 thin metal ruler 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 Dip switch Function OFF ON setting eee Wee Systemsetting SW1 1 SW1 2 ON OFF input Change mode input Change temp input Gs OFF OFF Remote controller Remote controller Remote controller ON OFF External input Remote controller Sun 3 OFF ON Seen External input See ON ON External input SW1 3 DHW tank WITH DHW tank WITHOUT DHW tank OFF SW1 4 Immersion heater WITHOUT Immersion heater WITH Immersion heater OFF SW1 5 Booster heater function For Heating and DHW For Heating only or WITHOUT Booster OFF heater SW1 6 Outdoor unit type Split type Packaged type O
65. rmal mode will heat the water in the DHW tank more quickly using the full power of the heat pump Eco mode takes a little longer to heat the water in the DHW tank but the energy used is reduced This is because heat pump operation is restricted using signals from the FTC2B based on measured DHW tank temperature Set Dip SW 2 7 to set immersion heater usage in DHW mode Dip SW 2 7 OFF Used ON Not used Setting Set Dip SW 2 9 to set booster heater usage in DHW mode Dip SW 2 9 OFF Used ON Not used Setting 5 4 3 Legionella prevention mode setting Set Dip SW 2 4 and 2 5 to set how often the Legionella prevention operation is activated 5 4 4 Heating Heating ECO Cooling Holiday mode setting Set Dip SW 2 3 to set economy setting for water circulation pump in Heating and Heating ECO and Cooling mode Dip SW 2 3 Setting OFF Inactive ON Active When the setting is inactive the water circuit pump is always ON When the set ting is active the water circulation pump stops 5 mins after the heat pump has stopped then starts operating again after 3 minutes stop After 1 minute the water circulation pump stops again Then water circulation pump repeats 3 mins OFF 1 min ON 3 mins OFF Set Dip SW 2 8 to set booster heater usage in Heating and Heating ECO and Holi day mode Dip SW 2 8 OFF Used ON Not used Setting Set Dip SW 3
66. ronic equipment at their end of life should be disposed of separately from your household waste Please dispose of this equipment at your local community waste collection recycling centre In the European Union there are separate collection systems for used electrical and electronic product Please help us to conserve the environment we live in 7 1 Safety precautions FOR USER gt Before installing the unit make sure you read all the Safety Precau tions gt The Safety Precautions provide very important points regarding safety Make sure you follow them gt Please report to or take consent by the supply authority before connec tion to the system Symbols used in the text Warning Describes precautions that should be observed to prevent danger of injury or death to the user Caution Describes precautions that should be observed to prevent damage to the unit Symbols used in the illustrations Indicates a part which must be grounded AN Warning The unit must not be installed by the user Ask the dealer or an authorized company to install the unit If the unit is installed improperly water leak age electric shock or fire may result Do not stand on or place any items on the unit Do not splash water over the unit and do not touch the unit with wet hands An electric shock may result Do not spray combustible gas close to the unit Fire may result Do not place a gas heater
67. rvice 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 1 From the main setting menu use F2 and F3 to highlight the service icon then press CONFIRM 2 You will be prompted to enter a password THE FACTORY DEFAULT PASSWORD IS 0000 3 Press CONFIRM The service menu is navigated using the F1 and F2 buttons to scroll through the functions The menu is split across two screens and is comprised of the following functions Function setting Restriction Temp offset setting Temp Analog setting Self check Running information Error history Password protection Remote controller check 5 0 Ov de CO Note Many functions can not be set whilst the indoor unit is running The installer should turn OFF the unit before trying to set these functions If the installer attempts to change the settings whilst the unit is running the remote controller will display a reminder message prompting the installer to stop operation before continuing By selecting Yes the unit will cease operation Service Function settings Function setting allows the setting of auto recovery after power failure only 1 Ensure the Ref address and unit number are displayed to the right 2 Press CONFIRM 3 Use F3 and F4 to highlight eit
68. s water supply could flow back to DHW tank Investigate source of back feed and rectify error in pipework fitting configuration Adjust pressure in cold supply 16 Noisy water circulation pump Air in water circulation pump Use manual and automatic air vents to remove air from system Top up water if necessary to achieve 1 bar on primary circuit 17 Noise during hot water draw off 1 Loose airing cupboard pipework 1 Install extra pipe fastening clips typically worse in the morning 2 Heaters switching on off 2 Normal operation no action necessary 18 Mechanical noise heard 1 Heaters switching on off Normal operation no action necessary coming from the indoor unit 2 valve changing position between DHW and heating mode 19 Water circulation pump runs Water circulation pump jam prevention mechanism Normal operation no action necessary for a short time unexpectedly routine to inhibit the build up of scale 20 Milky Cloudy water Oxygenated water Water from any pressurised system will release oxygen bubbles when water is Sanitary circuit running The bubbles will settle out 21 FTC2B that was running in the FTC2B is designed to run in an operation mode Normal operation heating mode before power with a higher priority i e DHW mode in this case After the DHW max operation time has elapsed or the DHW max failure is running in the DHW at power recovery temperature has been reached the DHW mode switch
69. switching external input IN1 to OFF TB142 1 2 open Please turn off both outdoor and indoor unit power supply before switching external input IN1 to OFF 21 6 Before test run 6 1 Check 22 Jun 23 After completing installation and the wiring and piping of the local application and ERROR outdoor units check for refrigerant leakage looseness in the power supply or con Code L8 trol wiring wrong polarity and power cable is securely connected Unit ETC Ref add bee a SS ee rog the resistance between the power sup erminals and ground is at least 1 Tel No 074 267 286 id s Warning Do not use the system if the insulation resistance is less than 1 0MQ Reset Caution Do not carry out this test on the control wiring low voltage circuit termi nals N 22 Jun 2018 11 23AM ERROR 6 2 Self check Code L8 Unit ETC Ref add When an error occurs when power is applied or during operation z Sec m Indication of error details Tel No 074 267 286 The code unit address and telephone number are displayed Reset current error The telephone number is displayed if registered m Resetting the error Press the F4 RESET button and the Yes button to reset the current error Code LED4 LED5 Error Action Flow rate may be reduced check for Water leakage L3 Light up Lightup Circulation water temperature overheat protection Strain
70. t THW5 Y Y Y Y Water Booster i 3 port bk Error circulation heater 2 valve pump Y Y Booster Immersion Defrost ooo heater 1 heater Remote controller Example 2 SW1 1 OFF SW1 2 OFF SW1 8 ON SW1 9 ON A local timer and our remote controller are used for system control Local timer Target temperature for each mode and Heating or Heating ECO or Cool ing mode are set with remote controller A local timer is used rather than automatic change over mode SW1 8 and SW1 9 must be switched MERE External input itch to ON The system runs in Heating or Heating ECO or Cooling until a Mots signal is received from the local timer the signal received from local 2144 55 6 E lionella low oolin eating eating timer must be longer than 200 ms The system then switches to DHW ER prevention switch Eco d mode Once DHW mode is satisfied the system automatically reverts to Wise ITFWA Heating or Heating ECO or Cooling es 9 9 9 THW2 THW2 Room thermostat THW5 THWS5 our1 our2 ours ouT4 ours oure OUTZ Y Y Y Y Water Booster i 3 port M Error circulation heater 2 valve pump Y Booster Immersion Defrost heater 1 heater Remote controller Example 3 A Lo
71. tank System diagram Thermistor Split type DHW tank TH2 Liquid refrigerant temp Present THW1 Flow water temp THW5 Outdoor unit Heat emitter THW1 EI Ca DD Heat exchanger THW2 THW2 Return water temp THW5 Tank water temp 4 3 2 TH2 Liquid refrigerant temp Absent THW1 Flow water temp THW2 Return water temp Outdoor unit 43 THW1 Heat emitter gt Heat exchanger THW2 Packaged type DHW tank THW1 Flow water temp Present FTC2B THW2 Return water temp 7 THW5 Tank water temp Outdoor unit 2 THW1 Heat emitter gt Lem Heat exchanger dE 2 THW1 Flow water temp Absent THW2 Return water temp Outdoor unit THW1 Heat emitter e THW2 Heat exchanger 4 3 3 System 3 3 Third step Heater setting Immersion heater Booster heater position
72. ternal signals for Heating or Heating ECO or Cooling and DHW at the same time from the local controller Automatic change over mode is NOT available when SW1 1 1 2 are set OFF ON or ON ON 19 5 Dip switch setting ee ee ET The priority order of external signals is DHW gt Heating gt Heating ECO gt Holiday gt Cooling However the priority order might be changed if you put DHW Heating or Heating ECO or Holiday and Cooling signals at the same time When automatic change over mode is selected DHW always has priority over space heating System example Example 1 Only our remote controller is used for system control No local system controller exists Target temperature for each mode and Heating or Heating ECO or Cool ing mode are set with remote controller Automatic change over mode is selected SW1 8 or SW1 9 must be switched to OFF The system will automatically change from Heating or Heating ECO or Cooling to DHW mode and back dependent on the DHW tank temperature SW1 1 OFF SW1 2 OFF SW1 8 OFF SW1 9 OFF or SW1 1 OFF SW1 2 OFF SW1 8 OFF SW1 9 ON or SW1 1 OFF SW1 2 OFF SW1 8 ON SW1 9 OFF ee ee switch IN IN2 IN3 IN4 IN5 IN6 INT IN8 Emergency Legionella Flow Cooling Heating Heating DHW Holiday prevention switch ECO TH2 THW1 e FTC2B THW2 Room thermosta
73. torizzato nell UE responsabile della stesura della scheda tecnica il seguente MITSUBISHI ELECTRIC EUROPE B V HARMAN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX UB8 1QQ U K Yoji SAITO Product Marketing Director Issued 1 May 2013 nosso representante autorizado na UE que esta autorizado para compilar ficheiro t cnico seguinte Vores autoriserede repr sentant i EU som er autoriseret til udarbejdelse af den tekniske fil er f lgende V r EG representant som r auktoriserad att sammanst lla den tekniska filen r f ljande V r autoriserte EU representant som har autorisasjon til utarbeide denne tekniske filen er som f lger Valtuutettu edustajamme EU ssa jolla on lupa laatia tekninen tiedosto on seuraava Toshihiko ENOMOTO JAPAN Senior Manager Quality Assurance Department Installers Please be sure to put your contact address telephone number this manual before handing it to the customer MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Authorized representative in EU MITSUBISHI ELECTRIC EUROPE B V HARMAN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX UB8 1QQ U K BH79D360H02 Printed in Japan
74. ty for air to water heat pump system cannot be maintained If you wish to use the heated water from the heated pump for these purposes take measure such as to the second heat exchanger within the water piping sys tem 33 EC DECLARATION OF CONFORMITY EG KONFORMITATSERKLARUNG DECLARATION DE CONFORMITE CE EG CONFORMITEITSVERKLARING DECLARACION DE CONFORMIDAD CE DICHIARAZIONE DI CONFORMITA CE DECLARAC O DE CONFORMIDADE CE EU OVERENSSTEMMELSESERKLAERING EG DEKLARATION OM OVERENSSTAMMELSE CE ERKLAERING OM SAMSVAR CE VAATIMUSTENMUKAISUUSVAKUUTUS MITSUBISHI ELECTRIC CORPORATION SHIZUOKA WORKS 18 1 OSHIKA 3 CHOME SURUGA KU SHIZUOKA CITY 422 8528 JAPAN hereby declares under its sole responsibility that the heating system components described below for use in residential commercial and light industrial environments erkl rt hiermit auf seine alleinige Verantwortung dass die unten beschriebenen Zubeh rteile f r das Heizungs K hlungs System zur Benutzung im h uslichen kommerziellen und leicht industriellen Umfeld d clare par la pr sente et sous son enti re responsabilit que les composants du syst me de chauffage refroidissement d crits ci dessous pour l utilisation dans des environnements r sidentiels commerciaux et d industrie l g re verklaart hierbij als enige verantwoordelijke dat de componenten van het verwarmings koelsysteem die hieronder worden beschreven bedoeld zijn voor gebruik in woonomgevingen en in c
75. wer to them in the event of overheating All electrical heaters used on the water circuit must have 2 a A thermostat to prevent overheating b A non self resetting thermal mechanism to prevent overheating 2 Installing the 2 unit lt Fig 2 1 1 gt lt Fig 2 3 1 gt Top 30 mm or more mm Cover Base Wall lt Fig 2 3 2 gt Service space Remove the 2 screws UY box cover screws Base Cover Bottom Bottom 2 1 Check the parts Fig 2 1 1 The FTC2B unit should be supplied with the following parts Part Name Ee Q ty FTC2B unit 1 Liquid refrigerant temp thermistor TH2 1 Lead wire 5m Red Connector 3p Yellow Flow water temp and Return water temp thermistor Lead wire 5m Gray Flow water temp THW1 2 1 5m Black Return water temp Connector 4p Red Tank water temp thermistor Lead wire Ge Connector 2p White He 1 Remote controller cable bm 1 8 Remote controller 1 2 2 Choosing the FTC2B unit installation location Do not install the FTC2B unit in outdoor location as it is designed for indoor in stallation only The FTC2B circuit board and casing are not waterproof Avoid locations where the unit is exposed to direct sunlight or other sources of heat Select a location where easy wiring access to the power

FLOW TEMP. CONTROLLER 2B (Cased) PAC-IF032B-E

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