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Contents

 

Before installing the FTC unit, make sure you read all the “Safety pre-

cautions”.

 

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 damage to the unit.

After installation, perform the test run to ensure normal operation. Then explain 

to your customer the “Safety Precautions” *1, use, and maintenance of the unit 

based on the information in this manual. This manual must be given to the user. 

This manual must always be kept by the actual users.

*1 “Safety Precautions” for user is indicated on page 33. 

 :  This indicates a part which must be grounded.

 Warning:

Carefully read the labels attached to the unit.

 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

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mize the risk of damage by earthquakes, typhoons, or strong winds. 

Improperly installed units may fall down and cause damage 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 damage 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 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 FTC 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 

FTC unit.

•   When installing sensors and parts, do not expose the terminals.

1.1  Before installation (Environment)

 Caution:

•  Do not install the FTC unit in outdoor location as it is designed for indoor 

installation only. Otherwise electric shock or breakdown may be caused 

by water, wind or dust. 

•  Do not use the unit in an unusual environment. If the FTC unit is installed 

or exposed to steam, volatile oil (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

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tions equipment are installed, you may need to take measures to prevent 

noise and electronic interference. Inverters, home appliances, high-

frequency medical equipment, and radio communications equipment can 

cause the FTC unit to malfunction or to breakdown. At the same time, the 

noise and electric interference from the FTC unit may disturb the proper 

operation of nearby medical equipment, and communications equipment.

1.2  Before installation or relocation

 Caution:

•  Be very careful when moving the units. Do not hold the packaging bands. 

Wear protective gloves to unpack and to move the units, in order to avoid 

injury to your hands.

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. Other

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wise, it may cause a short circuit, 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.

•   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 ca

-

pacity. If the circuit breaker capacity is larger than the specified capacity, 

breakdown or fire may result.

•  Be sure to safely dispose of the packaging materials. 

Packaging materi-

als, such as nails and other metal or wooden parts may cause injuries.

•  Do not wash the FTC unit. You may receive an electric shock.

1.  Safety precautions .....................................................................................2

2.  Installing the FTC unit ...............................................................................3

3. System ......................................................................................................5

4.  Electrical work .........................................................................................12

5.  Dip switch setting ....................................................................................27

6.  Before test run .........................................................................................32

7.  Main remote controller operation .............................................................33

8. Troubleshooting  ......................................................................................49

9.  Multiple outdoor units control ..................................................................54

10. Supplementary information  ....................................................................66

Local application factors ................................................................................67

1. Safety precautions 

FOR INSTALLER

“FTC (Master)” is the abbreviation of “Flow Temperature Controller [Master]”, which is described as “FTC (Master)” in this manual.

“FTC (Slave)” is the abbreviation of “Flow Temperature Controller [Slave]”, which is described as “FTC (Slave)” in this manual.

In this manual, “FTC” that is not followed by “(Master)” or “(Slave)” means “FTC (Master and Slave)”. 

Mitsubishi Electric is not responsible for the failure of locally supplied parts. 

Содержание PAC-SIF051B-E

Страница 1: ... TEMP CONTROLLER SLAVE Cased PAC SIF051B E OPERATION MANUAL For safe and correct use please read this operation manual thoroughly before operating the FTC unit FOR USER INSTALLATION MANUAL For safe and correct use read this manual thoroughly before installing the FTC unit FOR INSTALLER ...

Страница 2: ...p water from splashing on the FTC unit When installing sensors and parts do not expose the terminals 1 1 Before installation Environment Caution Do not install the FTC unit in outdoor location as it is designed for indoor installation only Otherwise electric shock or breakdown may be caused by water wind or dust Do not use the unit in an unusual environment If the FTC unit is installed or exposed ...

Страница 3: ... housing the component plumbing parts NO DHW tank DeltaT Difference in temperature between two system locations DHW mode Domestic hot water heating mode for showers sinks etc Flow temperature Temperature at which water is delivered to the primary circuit FTC Master Flow temperature controller the circuit board in charge of controlling the system master board for multiple outdoor units control FTC ...

Страница 4: ...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 source is available Avoid locations where combustible gases may leak be produced flow or ac cumulate Select a level location that can bear the weight and vibration of the unit Avoid locations where the unit is exposed to o...

Страница 5: ...door unit 4 1 4 2 FTC Master powered by independent source 4 1 4 2 3 2 Second step Outdoor unit type Outdoor unit type System diagram Thermistor Reference section Split TH2 Liquid refrigerant temp 4 4 5 2 Packaged 4 4 5 2 PAC IF062 063B E is not available for Split type system FTC Master Main remote controller Wireless Remote controller Option Wireless receiver Option Outdoor unit Main remote cont...

Страница 6: ...ing defrost Present Present Present For heating only THW1 Flow water temp THW2 Return water temp THW5 Tank water temp 4 4 4 5 5 3 Present Present Absent THW1 Flow water temp THW2 Return water temp THW5 Tank water temp 4 4 4 5 5 3 Absent Absent Present THW1 Flow water temp THW2 Return water temp 4 4 4 5 5 3 Absent Absent Absent THW1 Flow water temp THW2 Return water temp 4 4 4 5 5 3 1 Please make s...

Страница 7: ...Water circulation pump Current 1 0A Max Power supply 230V AC When connecting a pump with an electric current of 1A or multiple pumps please note the following 1 Use a relay s 2 When power is supplied from outdoor unit TOTAL current including the other parts requirement MUST be 3A otherwise the fuse on the outdoor unit PCB will blow 3 When independent power supplies i e from the FTC unit itself tot...

Страница 8: ...n Available range Available range Available range PUHZ SW160 4 PUHZ SW200 4 25 0 35 0 45 0 55 0 65 0 75 0 85 0 5 0 7 0 9 0 11 0 13 0 15 0 17 0 19 0 Available range 2 Split type units Heating 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 connected plate heat exchanger is ACH 70 40 made b...

Страница 9: ... capacity Breaker wiring recommended Description Power supply Capacity Breaker Wiring Immersion heater DHW tank N 230V 50Hz 3 kW 16 A 2 5 mm When installing an immersion heater with the capacity of bigger than shown above select an appropriate size breaker and cable diameter based on the maximum possible electric current Safety device 1 Install the thermistor THW5 optional parts PAC TH011TK E 5 m ...

Страница 10: ...de cannot run under 2 zone temperature control but can run both in Zone1 and Zone2 under 1 zone temperature control 3 System 10 Zone2 water circulation pump local supply 11 Zone2 flow switch local supply 12 Zone2 heat emitters e g underfloor heating local supply 13 Boiler flow water temp thermistor THWB1 option 14 Boiler return water temp thermistor THWB2 option 15 Boiler local supply 16 Zone1 2 w...

Страница 11: ... Set the electric heater capacity and water pump s input according to indoor unit model and specs of additional pump s supplied locally Refer to the menu tree in 7 2 Main remote controller Booster heater1 Booster heater2 Immersion heater Pump1 Pump2 Pump3 2kW 1 4kW 1 0kW 1 1 0W 1 0W 1 Table 3 7 1 Be sure to change the setting corresponding to the specification of locally supplied auxiliaries such ...

Страница 12: ...nd value Notes 1 Wiring size must comply with the applicable local and national codes 2 FTC Master outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord Design 60245 IEC 57 FTC Master power supply cords shall not be lighter than polychloroprene sheathed flexible cord Design 60227 IEC 53 3 Install an earth longer than other cables 4 Please keep enough output...

Страница 13: ... 1 5 FTC Master power supply earth 1 Min 1 5 FTC Master Outdoor unit 2 2 Min 0 3 FTC Master Outdoor unit earth Circuit rating FTC Master L N 3 230V AC FTC Master Outdoor unit S1 S2 3 FTC Master Outdoor unit S2 S3 3 24V DC 2 Max 120 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 ...

Страница 14: ...in 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 Fig 4 2 2 regardless of whether installing the main 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 c...

Страница 15: ...deformation or cracks to the main remote controller do not overtighten the screws and make an additional installation hole s 6 Cut out the cable access hole Direct wall installation Cut out the knockout hole indicated with grey in Fig 4 2 7 in the front cover by knife or nipper Thread the main remote controller cable from the slot behind the bottom case through this access hole 7 Plug the lead wir...

Страница 16: ...emote controller cable along the wall surface Thread the main remote controller cable through the cable access hole at the top of the main remote controller Seal the gap between the cable and the access hole with putty Use a cable cover Disassembling the top case and the front cover 1 Remove the front cover Insert a flat head screwdriver into either of two open slots at the bottom of the main remo...

Страница 17: ... 8 to ON Before operation configure the wireless remote controller to transmit and receive data referring to the wireless remote controller installation manual Control option B This option features the main remote controller and the Mitsubishi Electric thermistor wired to FTC Master The thermistor is used to monitor room temperature but can not make any changes in control operation Any changes to ...

Страница 18: ...llocated to Zone1 and the thermistor to Zone2 A thermistor built into the main remote controller can be used for monitoring the room temperature for Auto Adaptation function whilst keeping all its features of the main re mote controller available The main remote controller and FTC Master are connected by a 2 core 0 3 mm non polar cable local supply with a maximum length of 500 m To use the sensor ...

Страница 19: ... When the THW1 and THW2 cables are too long bundle the excess cables outside the FTC Master unit Do not bind the wires in the FTC Master unit Thermistor position 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 ...

Страница 20: ...Refrigerant water HEX DHW tank temperature Water OUTLET side after booster heater Water piping Water INLET side THW1 TH2 THW5 THW2 1 FTC Master FTC Master FTC Master FTC Master FTC Master FTC Master FTC Master FTC Master Outdoor unit SPLIT type outdoor unit with DHW tank THW1 TH2 THW5 THW2 1 Refrigerant Refrigerant LIQUID side piping SPLIT type without a refrigerant water HEX inside 1 Refrigerant ...

Страница 21: ... 5 1 DIP Switch Functions IN4 TBI 1 7 8 Demand control input Normal Heat source OFF Boiler operation 3 IN5 TBI 1 5 6 Outdoor thermostat input 2 Standard operation Heater operation Boiler operation 3 IN6 TBI 1 3 4 Room thermostat 2 input 1 Refer to SW3 1 in 5 1 DIP Switch Functions IN7 TBI 1 1 2 Flow switch 3 input Zone2 Refer to SW3 3 in 5 1 DIP Switch Functions IN8 TBI 3 1 2 Electric energy meter...

Страница 22: ...utput OFF ON 230V AC 0 5A Max OUT9 TBO 4 3 4 CNIH Immersion heater output OFF ON 230V AC 0 5A Max Relay OUT11 TBO 3 3 4 Error output Normal Error 230V AC 0 5A Max OUT12 TBO 3 5 6 Defrost output Normal Defrost 230V AC 0 5A Max OUT13 TBO 4 1 2 2 way valve 2a output 2 OFF ON 230V AC 0 1A Max OUT15 TBO 3 7 8 Comp ON signal OFF ON 230V AC 0 5A Max BC TBO 5 3 4 Booster heater protection output OFF BHT o...

Страница 23: ...hermostat Wiring for immersion heater with a built in direct cut off thermostat Fig 4 6 1 Fig 4 6 2 Fig 4 6 3 4 6 Wiring for heater Care to be taken when connecting a booster heater s The initial setting assumes that the connected booster heater s has a built in direct cut off thermostat Fig 4 6 1 When the connected booster heater s has a built in indirect cut off thermostat perform wiring accordi...

Страница 24: ... work 1 Zone1 2 way valve 2a local supply 2 Zone2 2 way valve 2b local supply 3 Water circulation pump 2 local supply 1 4 By pass valve local supply 2 1 Install according to system in the field 2 For safety protection it is recommended to install a by pass valve Note Freeze stat function is deactivated whilst this control is ON Use anti freeze solution to avoid freezing if necessary 4 Room thermos...

Страница 25: ... Specification of 2 way valve local supply Power supply 230V AC Current 0 1A Max If over 0 1A you must use a relay Type Normally closed Installation position Electrical connection terminal block Output signal Heating DHW System OFF 2 way valve1 DHW TBO 2 4 5 OFF closed ON open OFF closed 2 way valve2 Heating TBO 4 1 2 ON open OFF closed OFF closed Note Should the 2 way valve become blocked the wat...

Страница 26: ...LED lamps on the FTC control board are all off 6 The read and write operations have been verified using the following SD mem ory cards however these operations are not always guaranteed as the speci fications of these SD memory cards could change Manufacturer Model Tested in Verbatim 44015 Mar 2012 SanDisk SDSDB 002G B35 Oct 2011 Panasonic RP SDP04GE1K Oct 2011 Arvato 2GB PS8032 TSB 24nm MLC Jun 2...

Страница 27: ...ne temperature control Inactive Active 6 OFF SW2 8 Flow sensor WITHOUT Flow sensor WITH Flow sensor OFF SW3 SW3 1 Room thermostat 2 input IN6 logic change Zone2 operation stop at thermostat short Zone2 operation stop at thermostat open OFF SW3 2 Flow switch 2 input IN3 logic change Failure detection at short Failure detection at open OFF SW3 3 Flow switch 3 input IN7 logic change Failure detection...

Страница 28: ...ster heater function Dip SW 1 6 Setting OFF For heating only ON For heating and DHW Set Dip SW 2 6 to set whether the system has a mixing tank Dip SW 2 6 Setting OFF WITHOUT mixing tank ON WITH mixing tank When Dip SW 2 6 is OFF back up operation of boiler is not available When Dip SW 2 6 is OFF 2 zone temperature control is not available Set Dip SW 2 7 to set activate or deactivate 2 zone tempera...

Страница 29: ...ion heater OFF WITHOUT booster heater OFF WITHOUT DHW tank OFF WITHOUT immersion heater ON WITH booster heater OFF OFF WITHOUT DHW tank OFF WITHOUT immersion heater OFF WITHOUT booster heater The use of two 2 way valves can perform same function as a 3 way valve Booster heater Heat emitter DHW tank THW5 THW1 THW2 3 way valve Booster heater Heat emitter DHW tank THW5 THW1 THW2 Immersion heater 3 wa...

Страница 30: ...the following three steps Booster heater 1 OUT6 Booster heater 2 OUT7 OFF OFF OFF ON STEP 1 ON OFF STEP 2 OFF ON STEP 3 ON ON Set Dip SW 2 4 to set activate or deactivate cooling mode Dip SW 2 4 Setting OFF Inactive ON Active When Dip SW 2 4 is OFF cooling mode is not available Set Dip SW 2 5 to set the automatic switch to backup heater only operation When outdoor unit stops by error Dip SW 2 5 Se...

Страница 31: ...g mode When the system is not incorporated with boiler the emergency mode is not available Before starting the emergency mode turn off the outdoor unit and FTC Master and then turn Dip SW 4 6 to ON Then turn on FTC Master to start the emergency mode FTC Master can be power supplied by the outdoor unit or directly by power source If emergency mode is no longer required please turn off both outdoor ...

Страница 32: ...rheat protection Check if the setting temperature of the Boiler for heating exceeds the re striction See the manual of the thermistors PAC TH011HT E Flow rate of the heating circuit from the boiler may be reduced Check for water leakage strainer blockage water circulation pump function LD Boiler temperature thermistor THWB1 THWB2 failure Check resistance across the thermistor LE Boiler operation e...

Страница 33: ...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 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 ...

Страница 34: ...at pump is running Defrosting Emergency heating 3 Electric heater When this icon is displayed the Electric heaters booster or immersion heater are in use 4 Target temperature Target flow temperature Target room temperature Compensation curve 5 OPTION Pressing the function button below this icon will dis play the option screen 6 Increase desired temperature 7 Decrease desired temperature 8 Z1 Z2 Pr...

Страница 35: ...ll appear as a larger version of the center of the screen Press CONFIRM to select and edit the highlighted mode Follow the Main remote controller Menu Tree for further setting using buttons for scrolling or F1 to F4 for selecting Main Settings Menu The main settings menu can be accessed by pressing the MENU button To re duce the risk of untrained end users altering the settings accidentally there ...

Страница 36: ... Heating flow temp Heating compensation curve Cooling flow temp Heating room temp Heating flow temp Heating compensation curve Cooling flow temp Compensation curve preview Compensation curve edit F1 F1 F3 F1 F2 F2 F2 F2 F4 F3 F3 F3 F4 F4 F3 F4 F2 F4 F3 F4 F2 F3 F4 DHW Date Time yyyy mm dd hh mm EN FR DE SV ES IT DA NL FI NO PT BG PL CZ RU OFF Room Tank Room Tank OFF ON hh mm hh mm AM AM hh mm C F ...

Страница 37: ...temp Energy price CO2 emission Heat source Schedule Electricity Electricity Heat pump capacity ON OFF Electric heater capacity Demand control IN4 Main remote controller SD Yes No Select download data OFF Heat source Boiler Heater Boiler Outdoor thermostat IN5 FTC Main RC SD Yes No Select upload data Water pump input Electric energy meter Booster heater 1 Pump 1 Booster heater 2 Pump 2 Immersion he...

Страница 38: ...Energy monitor Following accumulated energy values are displayed Consumed electric energy in total month to date Produced heat energy in total month to date To monitor the energy values in each operation mode for month to date last month the month before last year to date last year press F4 to access to the Energy monitor menu Note If a certain accuracy is required for the monitoring the method to...

Страница 39: ...e used for monitoring the room temperature from Zone1 and Zone2 separately Control option Remote Controller Options Installation manual Corresponding initial settings room sensor Zone1 Zone2 A Room RC1 8 one each for Zone1 and Zone2 B TH1 C Main remote controller D Not specified if a field supplied room thermostat is used Room RC1 8 one each for Zone1 and Zone2 if a wireless remote controller is u...

Страница 40: ...y op erate The duration of this feature is set by the installer and during its operation DHW mode can not normally be reactivated allowing time for the system to deliver primary hot water to the space heating cooling if required However if at this time there is no current demand for space heating cooling the system will automatically resume DHW mode This will continue until it receives a demand fo...

Страница 41: ...eating or is overheating your home please contact your installer so they can check your system for any problems and update these settings if necessary Explanation of Legionella Prevention Mode operation At the time entered by the installer Start time flow of useful heat from the sys tem is diverted to heat the water in the DHW tank When the temperature of the stored water exceeds the Hot Water tem...

Страница 42: ...r Schedule 1 will be valid If Schedule 2 is set to full year i e March to Feb only the operational pattern for Schedule 2 will be valid The schedule timer is activated or deactivated in the option screen See General Operation section Setting the Schedule period 1 From the main settings menu use F2 and F3 to highlight the schedule icon then press CONFIRM 2 The Schedule period preview screen is disp...

Страница 43: ...to set the required time of inactivity then press CONFIRM 12 You can add up to 4 periods of inactivity within a 24 hours interval 13 Press F4 to save settings When scheduling heating button F1 changes the scheduled variable between time and temperature This enables a lower temperature to be set for a number of hours e g a lower temperature may be required at night when the occupants are sleeping N...

Страница 44: ...before trying to set these functions If the installer attempts to change the settings whilst the unit is running the main remote controller will display a reminder message prompting the installer to stop operation before continuing By selecting Yes the unit will cease operation Manual operation and heat source setting can not be selected if the system is running A screen will be displayed asking t...

Страница 45: ...maximum temperature set in the Flow temp range menu Fast mode is not efficient and will increase running cost when compared to normal mode Range of outdoor ambient temperature at which simultaneous operation starts is 30 C to 10 C default 15 C System shall automatically return to routine operation This will happen when the outdoor ambient temperature rises above the selected temperature for this s...

Страница 46: ... wish to continue and reset the password to default setting 6 To reset press button F3 7 The password is now reset to 0000 Manual reset Should you wish to restore the factory settings at any time you should use the manual reset function Please note this will reset ALL functions to the factory de fault settings SD card The use of an SD memory card simplifies the main remote controller settings in t...

Страница 47: ...door ambient temp 1 28 C 35 C 4 35 C Zone2 flow temp 25 C 60 C 25 C Adjust Zone1 outdoor ambient temp 29 C 34 C 5 Zone1 flow temp 25 C 60 C Zone2 outdoor ambient temp 1 29 C 34 C 5 Zone2 flow temp 1 25 C 60 C Holiday DHW 13 Active Non active Non active Heating Cooling Active Non active Active Zone1 heating room temp 10 C 30 C 15 C Zone2 heating room temp 1 10 C 30 C 15 C Zone1 heating flow temp 25...

Страница 48: ...acity 0 30 kW 4 kW Floor dry up function On Off 6 Off Target temp Start Finish 25 60 C 30 C Max temp 25 60 C 45 C Max temp period 1 20 days 5 days Flow temp Increase Temp increase step 1 10 C 5 C Increase interval 1 7 days 2 days Flow temp Decrease Temp decrease step 1 10 C 5 C Decrease interval 1 7 days 2 days Energy monitor settings Electric heater capacity Booster heater 1 capacity 0 30kW 2kW B...

Страница 49: ...between FTC Master and outdoor unit 3 The main screen appears with a press of the ON button but disappears in a second The main remote controller operations do not work for a whilst after the settings are changed in the service menu This is because the system takes time to apply the changes Normal operation The indoor unit is applying updated settings made in the service menu Normal operation will...

Страница 50: ...ote controller has been corrected 3 Main remote controller failure 6 LED4 on FTC Mas ter is off See figure 4 5 1 1 SD memory card is NOT inserted into the memory card slot with correct orientation 1 Correctly insert SD memory card in place until a click is heard 2 Not an SD standards compliant memory card 2 Use an SD standards compliant memory card Refer to section 4 11 LED4 on FTC Mas ter is blin...

Страница 51: ... ii Replace 3 way valve coil If the valve does not still function go to iii below iii Replace 3 way valve Refer to the service manual 11 Hot or warm water from cold tap Heat of hot water pipe is transferred to cold water pipe Insulate re route pipework 12 Water leakage 1 Poorly sealed connections of water circuit components 1 Tighten connections as required 2 Water circuit components reaching the ...

Страница 52: ...rmittent expansion vessel charge may have reduced bladder perished 3 Check gas side pressure in expansion vessel 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 gas side pressure in DHW tank If pressure in DHW tank is similar to that in incoming mains cold w...

Страница 53: ...hortly after DHW or LP mode starts running after Cooling mode The setting time period of Heat pump only operation is short Adjust the setting time period of Heat pump only operation Refer to Electric heater DHW on Page 45 29 During DHW or LP mode following the cooling mode error L6 circulation water freeze protection occurs and operation stops frequently If the preset temperature below which the f...

Страница 54: ...temp thermistor THW1 9 Slave1 return temp thermistor THW2 10 Slave1 ref liquid temp thermistor TH2 1 11 Slave2 circulation pump1 local supply 12 Slave2 flow switch local supply 2 13 Slave2 flow temp thermistor THW1 14 Slave2 return temp hermistor THW2 15 Slave2 ref liquid temp thermistor TH2 1 System 1 Heating Cooling system Install a low loss header local supply Install booster heater toward the ...

Страница 55: ...ame function as a 3 way valve 4 DHW operation requires to use the master unit or hydro box as the slave controller No Component Wiring Master Slave 1 4 Slave 2 4 1 Booster heater local supply 2 Circulation pump1 local supply 3 Flow switch1 local supply 2 4 Immersion heater local supply 5 Flow temp thermistor THW1 6 Return temp thermistor THW2 7 Tank water temp THW5 8 Slave1 circulation pump1 local...

Страница 56: ... return temp thermistor THW7 option No Component Wiring Master Slave 1 Slave 2 13 Zone2 flow temp thermistor THW8 option 14 Zone2 return temp thermistor THW9 option 15 Slave1 circulation pump1 local supply 16 Slave1 flow switch local supply 2 17 Slave1 flow temp thermistor THW1 18 Slave1 return temp thermistor THW2 19 Slave1 ref liquid temp thermistor TH2 1 20 Slave2 circulation pump1 local supply...

Страница 57: ...ef liquid temp thermistor TH2 1 17 Slave2 circulation pump1 local supply 18 Slave2 flow switch local supply 2 19 Slave2 flow temp thermistor THW1 20 Slave2 return temp thermistor THW2 21 Slave2 ref liquid temp thermistor TH2 1 1 Cooling system is available only with ERS models 2 For safety protection it is recommended to install a flow switch No Component Wiring Master Slave 1 Hydrobox Slave 2 Hyd...

Страница 58: ...in slave controller setting FTC Slave PAC SIF051B E Fig 9 3 3 FTC Slave can be powered in two ways 1 Power cable is run from the outdoor unit to FTC Slave 2 FTC Slave has independent power source Note Do not run the low voltage cables through a slot that the high voltage cables go through Bundle cables by using clamps as shown in the figure to the right Option 1 FTC Slave powered via outdoor unit ...

Страница 59: ...hort circuited connector CNS2 on FTC Slave see Fig 9 3 5 Turn the outdoor unit DIP switch SW8 3 to ON Turn on the outdoor unit BEFORE the FTC Slave 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 Fig 9 3 5 Fig 9 3 6 FTC Slave power supply N 230 V 50 Hz FTC Slave input capacity Main swi...

Страница 60: ...pose 9 5 2 Connecting the flow water temp thermistor THW1 cable 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 FTC Slave When the THW1 and THW2 cables are too long bundle the excess cables outside the FTC Slave unit Do not bind the wires in the FTC Slave unit Thermistor position Place THW1 on water pip...

Страница 61: ...less remote controller WITH Wireless remote controller SW2 SW2 1 Room thermostat1 input IN1 logic change Zone1 operation stop at short Zone1 operation stop at open SW2 2 Flow switch1 input IN2 logic change Failure detection at short Failure detection at open SW2 3 Booster heater capacity restriction Inactive Active SW2 4 Cooling mode function Inactive Active SW2 5 Automatic switch to backup heater...

Страница 62: ...VS or equivalent Wire size Stranded wire 0 13 mm to 1 25 mm Solid wire ø0 4 mm to ø1 2 mm Switch Non voltage a contact signals Remote switch minimum applicable load 12V DC 1mA L N OUT13 1 2 3 4 5 6 TBO 1 1 2 3 4 5 6 TBO 2 TBO 3 1 2 3 4 5 6 7 8 1 2 3 4 6 5 TBO 4 L N OUT1 N L OUT4 TBO 5 1 2 3 4 5 6 7 8 FTC Master 1 3 CN3C BLU 1 3 CNPWM WHT LED1 LED2 LED3 LED4 CN108 5 1 5 1 5 1 CNRF WHT CN105 RED TBO...

Страница 63: ...12 3 4 Thermistor Return water temp Note Do not splice the wiring to extend or shorten it or this could affect correct monitoring of each temperature If the wiring is too long bundle it with a strap to adjust the length Output Name Terminal block Connector Item OFF ON Signal Max current OUT1 TBOUT 1 2 Water circulation pump 1 output OFF ON 230V AC 1 0 A Max PAC SIF051B E Fig 9 7 4 LED1 LED3 TBIN 4...

Страница 64: ... 9 7 7 1 3 CN3C BLU 1 3 CNPWM WHT LED1 LED2 LED3 LED4 CN108 5 1 5 1 5 1 CNRF WHT CN105 RED TBO 1 TBO 2 TBO 3 TBO 4 CNP1 WHT CNP4 RED CNV1 WHT CN22 BLU CNIT BLU CN01 WHT F2 F1 6 3A 250V 10A 250V SW1 SW2 SW3 SW4 SW5 1 8 1 8 1 1 5 1 3 1 3 8 1 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 1 2 3 4 5 6 8 1 6 1 2 4 6 CNBH WHT CNBC GRY 1 1 3 1 2 1 2 1 2 CNBHT BLK 1 3 7 1 3 CNIH ORN 1 4 1 3 CNW5 WHT CN21 YLW CNW...

Страница 65: ...5 1 When LED1 on master controller is also off See Figure 4 5 1 1 Master controller is not supplied with 220 to 240V AC 1 Check the voltage across the L and N terminals on the indoor power supply terminal block See section 4 5 When the voltage is not 220 to 240V AC check for faulty wiring to power supply When the voltage is 220 to 240V AC go to 2 below 2 There are problems in the method of connect...

Страница 66: ... room temp thermostats 3 Wireless remote controller option Room temp thermostat local supply Main remote controller remote position 1 The boiler temp thermistor is an optional part 2 OUT10 has no voltage across it 3 Boiler heating is controlled on off by the room temp thermostat Remote controller settings 1 Go to Service menu Heat source setting and choose Boiler or Hybrid 4 2 Go to Service menu O...

Страница 67: ...t 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 4 Notes Install the hydraulic filter at the water inlet pipework Inlet water temperature of heat exchanger should be within the range 5 C 55 C The water in both primary and sanitary circuit should be clean and with p...

Страница 68: ...onenter til opvarmning til brug i privat boligbyggeri erhvervsområder og inden for let industri intygar härmed att uppvärmningssystemkomponenterna som beskrivs nedan är för användning i bostäder kommersiella miljöer och lätt industri erklærer hermed som sitt ansvar ene og alene at komponentene i varmesystemet som beskrives nedenfor og som er beregnet for bruk i bolig forretnings og lettindustrimil...

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Страница 70: ...Printed in the UNITED KINGDOM HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Please be sure to put the contact address telephone number on this manual before handing it to the customer ...

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