Summary of Contents for Mitsubishi Electric PAC-IF051B-E
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FLOW TEMP. CONTROLLER [MASTER] (Cased) PAC-IF051B-E PAC-IF052B-E FLOW TEMP. CONTROLLER [SLAVE] (Cased) PAC-SIF051B-E INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, read this manual thoroughly before installing the FTC4 unit. OPERATION MANUAL FOR USER For safe and correct use, please read this operation manual thoroughly before operating the FTC4 unit.
“FTC4 (Slave)” is the abbreviation of “Flow Temperature Controller [Slave]”, which is described as “FTC4 (Slave)” in this manual. In this manual, “FTC4" that is not followed by “(Master)” or “(Slave)” means “FTC4 (Master and Slave)”. Mitsubishi Electric is not responsible for the failure of locally supplied parts. 1. Safety precautions FOR INSTALLER Before installing the FTC4 unit, make sure you read all the “Safety pre-...
1. Safety precautions 1.4 Before starting the test run Caution: • Before starting operation, check that all protective parts are correctly in- • Turn on the main power switch of the outdoor unit more than 12 hours stalled. Make sure not to get injured by touching high voltage parts. before starting operation.
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2. Installing the FTC4 unit 2.2. Choosing the FTC4 unit installation location • Do not install the FTC4 units outdoors as it is designed for indoor installation only. (The FTC4 circuit board and casing are not waterproof.) • Avoid locations where the unit is exposed to direct sunlight or other sources of heat.
3. System The FTC4 (Master) 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. For multiple outdoor units control with FTC4 (Slave), see section 9. 3.1 First step (Electrical work) Reference Power supplies...
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3. System 3.3 Third step (Functions setting) Immersion Booster Reference DHW tank System diagram Thermistor Remarks heater heater function section Present Absent Present For heating THW1: Flow water temp. and DHW DHW tank THW2: Return water temp. THW5 THW5: Tank water temp. 3-way valve ( THW1 Heat emitter...
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3. System 3.4 Fourth step (Functions setting) * Make sure to check the followings for your safety when designing a system. These are the minimum requirement for the safe use of FTC4 unit. Parts name Requirement It is required to protect system from the effects of insufficient flow. Flow switch Strainer /Magnetic filter Provide it as required to protect parts from damages caused by iron particles/water/contamination (e.g.
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3. System From the previous page. Parts name Requirement Water circulation pump (1) Packaged-type units Heating PUHZ-W85 PUHZ-W50 19.0 19.0 Available range Available range 17.0 17.0 15.0 15.0 13.0 13.0 11.0 11.0 11.0 10.0 12.0 13.0 14.0 10.0 12.0 14.0 16.0 18.0 20.0...
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3. System 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. (Note) System without neither booster heater or immersion heater, ‘Legionella Prevention Mode’...
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3. System 3.5 Local system 1-zone temperature control Zone1 Zone1 2-zone temperature control Zone1 Zone2 1-zone temperature control with boiler 2-zone temperature control with boiler Zone1 Zone1 Zone2 1. Zone1 heat emitters (e.g. radiator, fan coil unit) (field supply) 9. Zone2 return water temp. thermistor (THW9) (option) 2.
Isolating Isolating switch switch : PAC-IF051B-E Electrical connections 1 phase/3 phase : PAC-IF052B-E *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.
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Isolating Isolating switch switch : PAC-IF051B-E Electrical connections 1 phase/3 phase : PAC-IF052B-E *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.
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4. Electrical work 4.2 Connecting the main controller 4.2.1 Connect the main controller cable to FTC4 (Master) Connect the main controller cable to 11 and 12 on the terminal block (TBI. 2) on the FTC4 (Master) controller. Wiring wire No. × size (mm²): 2 × 0.3 (non polar) The 10 m wire is attached as an accessory.
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4. Electrical work 5. Install the back cover. ■ Installation using a switch box ■ Direct wall installation • When installing the back cover in the switch box, secure at least two corners • Thread the cable through the slot provided. of the switch box with screws.
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4. Electrical work 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.
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Room controller installation manual.) Control option B This option features the main controller and the Mitsubishi Electric thermistor wired to FTC4 (Master). The thermistor is used to monitor room temperature but can not make FTC4 any changes in control operation. Any changes to DHW (*1) must be made using the (Master) main controller mounted on the FTC4 (Master).
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The thermostat is wired to IN6 on FTC4 (Master). (If the thermostat is allocated to Zone1, it is wired to IN1 on TBI.1.) (Refer to 4.5.) Control option B This option features the main controller, the Mitsubishi Electric thermistor and a locally FTC4 supplied thermostat that are wired to FTC4 (Master).
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4. Electrical work 4.4. Connecting the thermistor cables Connect the thermistor for the FTC4 (Master) controller. For multiple outdoor units control with FTC4 (Slave), see section 9. Connector CN20 4.4.1 Connecting the room temp. thermistor (TH1) cable Connector CN21 TH1 is an optional part (PAC-SE41TS-E). TH1 is required to use the auto adaptation function.
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4. Electrical work 4.4.5. Thermistor position and necessity Outdoor unit type DHW tank THW1 THW2 THW5 Present Split Absent — Present — Packaged Absent — — : Necessary. Connect the thermistor. —: Not necessary. The thermistor is not required, do not connect. PACKAGED type outdoor unit with DHW tank and booster heater SPLIT type outdoor unit with DHW tank and booster heater DHW tank...
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4. Electrical work 4.5 Connecting inputs/outputs For multiple outdoor units control with FTC4 (Slave), see section 9. CN01 When the wires are wired to adjacent terminals use ring terminals and insu- (BLK) late the wires. TBO.1 CN3C (BLU) FT C 4 FTC4 (Master) TBO.2 LED3...
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4. Electrical work 4.5.3 Outputs Signal/Max current Max. total current Name Terminal block Connector Item OUT1 TBO.1 3-4 — Water circulation pump 1 output (Space heating & DHW) 230V AC 1.0 A Max 3.0 A (a) OUT2 TBO.1 5-6 — Water circulation pump 2 output (Space heating for Zone1) OFF 230V AC 1.0 A Max OUT3...
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4. Electrical work 4. Wiring for heater The initial setting assumes that the connected booster heater(s) has a built-in direct cut-off thermostat. When the connected booster heater(s) has a built-in indirect cut-off thermostat, perform wiring according to the following items. < Fig. 4.6.2> •...
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4. Electrical work 4. Wiring for 2-zone temperature control 1. Water circulation pump 2 (Zone1 water circulation pump) / Water circulation pump 3 (Zone2 water circulation pump) Electrically wire water circulation pumps 2 and 3 to the appropriate output terminals. (Refer to “Outputs” in 4.5.) 2.
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4. Electrical work 4. Installation procedure for DHW tank Specification of 2-way valve (field supply) Note: • Be aware that the respective DHW operations are greatly effected by the • Power supply: 230V AC selections of the components such as tank, immersion heater, or the like. •...
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(9) FTC4 supports FAT file system but not NTFS file system. (10) Mitsubishi Electric is not liable for any damages, in whole or in part, including failure of writing to an SD memory card, and corruption and loss of the saved data, or the like.
Dip switch settings are listed below. Make sure to turn off both indoor unit and outdoor unit power supplies before changing the switch settings. For multiple outdoor units control with FTC4 (Slave), see section 9. OFF: PAC-IF051B-E PAC-SIF051B-E ON: PAC-IF052B-E Default settings:...
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5. Dip Switch setting 5.2 Outdoor unit type Set Dip SW 1-7 to set the outdoor unit type. Dip SW 1- Setting Note Split type Necessary to connect TH2 Packaged type Not necessary to connect TH2 Set Dip SW 1-2 to set the heat pump maximum outlet water temperature. Dip SW 1-2 Setting 55 °C...
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5. Dip Switch setting 5.4 Operation setting Set Dip SW 1-8 to set whether the system has a wireless remote controller. Dip SW 1- Setting WITHOUT wireless remote controller WITH wireless remote controller Set Dip SW 2-1 to set the room thermostat 1 input (IN1) logic. Dip SW 2-1 Setting Operation stop at thermostat short...
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5. Dip Switch setting 5.5 Emergency mode (Heater only operation) 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 automatically controls between the DHW mode and the heating mode. When the system is not incorporated with heater, the emergency mode is not available.
. Before test run .1. Check After completing installation and the wiring and piping of the local application and outdoor units, check for refrigerant leakage, looseness in the power supply or control wir- ing, wrong polarity, and power cable is securely connected. Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0MΩ.
This symbol mark is according to the directive 2002/96/EC Article 10 Information for users and Annex IV. WEEE) 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 electronic equipment, at their end-of-life, should be disposed of separately from your household waste.
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. Main controller operation .2 Main Controller Letter Name Function Screen Screen in which all information is displayed Menu Access to system settings for initial set up and modifications. Back Return to previous menu. Confirm Used to select or save. (Enter key) Power/Holiday If system is switched off pressing once will turn system on.
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. Main controller operation Unrestricted access Initial Installer only Main screen Shaded items relate Information to DHW functions. Option These are only avail- Forced DHW ON/OFF able if the system ON/Prohibited/Timer includes a DHW tank. Heating/Cooling ON/Prohibited/Timer Holiday Active/Non active...
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. Main controller operation Unrestricted access Initial Installer only Main screen Shaded items relate to DHW functions. Main menu Service These are only avail- (Password protected) able if the system Manual operation includes a DHW tank. Function settings Thermistor adjustment Auxiliary settings...
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. Main controller operation Setting the Main Controller After the power has been connected to the outdoor unit and hydrobox (See section 4.1) the initial system settings can be entered via the main controller. 1. Check all breakers and other safety devices are correctly installed and turn on power to the system.
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. Main controller operation 2. When 2-zone temperature control is active or wireless remote controllers are available, from Room RC zone select screen, select zone no. to assign to each remote controller. 3. From Sensor setting screen, select a room sensor to be used for monitoring the room temperature from Zone1 and Zone2 separately.
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. Main controller operation Explanation of DHW operation • When the DHW tank temperature drops from “DHW max. temp” by more than the DHW tank temp. “DHW max. temperature drop” (set by installer), DHW mode operates and the Stop flow from the primary heating/cooling circuit is diverted to heat the water in the DHW max.
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. Main controller operation Forced DHW The forced DHW function is used to force the system to operate in DHW mode. In normal operation the water in the DHW tank will be heated either to the set temper- ature or for the maximum DHW time, whichever occurs first. However should there be a high demand for hot water ‘Forced DHW’...
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. Main controller operation Holiday mode Holiday mode can be activated in 2 ways. Both methods will result in the Holiday Mode activation screen being shown. Option 1. From the main menu screen button E should be pressed. Be careful not to hold down button E for too long as this will turn off the controller and system.
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. Main controller operation 1. In the preview menu screen press F4 button. * In the case of 2-zone system, press F1 button to switch between Zone1 and Zone2. Preview screen 2. First select the days of the week you wish to schedule. 3.
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. Main controller operation Service 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.
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. Main controller operation Manual operation During the filling of the system the water circulation pump and 3-way valve can be manually overridden using manual operation mode. When manual operation is selected a small timer icon appears in the screen. The function selected will only remain in manual operation for a maximum of 2 hours.
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. Main controller operation From the Auxiliary settings menu highlight Mixing valve control. Press CONFIRM. The Mixing valve control screen is displayed. Use F1 and F2 buttons to set Running time between 30 to 240 seconds. The Running time equals to a period from full open of the valve (at a hot water mixing ratio of 100%) to full close (at a cold water mixing ratio of 100%).
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. Main controller operation Operation settings To access the Operation settings menu use F1 and F2 buttons to scroll through the service menu until Operation settings is highlighted. Press CONFIRM. Operation settings menu is displayed. Operation settings menu screen From the Auxiliary settings menu highlight Freeze Stat Function.
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. Main controller operation This function allows operational setting of flow temperature range from the Ecodan and also the time interval at which the FTC4 collects and processes data for the auto adap- tation mode. From the Operation settings menu use F1 and F2 buttons to scroll through the list until Room temp.
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. Main controller operation External input settings From the service menu use F1 and F2 buttons to highlight External input settings then press CONFIRM. From the External input settings menu highlight Demand control (IN4). Press CONFIRM. The Demand control screen is displayed. External input settings menu screen Press F3 button to select Heat source OFF or Boiler.
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. Main controller operation Manual reset Should you wish to restore the factory settings at any time you should use the man- ual reset function. Please note this will reset ALL functions to the factory default settings. From the service menu use F1 and F2 buttons to scroll through list until Manual Reset is highlighted.
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. Main controller operation 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 Default setting Field Main controller screen Parameters...
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. Main controller operation Commissioning/Field settings record sheet (continued from the previous page) Default Field Main controller screen Parameters Notes setting setting Service menu Heat source setting Standard/Heater/Boiler/Hybrid *5 Standard Operation settings Freeze stat function Outdoor ambient temp. (3 - 20°C) 5°C Simultaneous On/Off *6...
. Troubleshooting Explanation - Solution Fault symptom Possible cause Main controller display 1. There is no power supply to main 1. Check LED2 on FTC4 (Master). (See .) is blank. controller. (i) When LED2 is lit. Check for damage or contact failure of the main controller wiring.
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Contact your Mitsubishi Electric dealer. 7. Immersion heater cut-out tripped. 7. Check immersion heater thermostat and press reset button, located on immersion heater boss, if safe.
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Contact your Mitsubishi Electric dealer. 5. Immersion heater cut-out has been triggered. 5. Check immersion heater thermostat and press reset button located on immersion heater boss, if safe.
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. Troubleshooting Explanation - Solution Fault symptom Possible cause In 2-zone tempera- When Zone1 and Zone2 are both in heating Normal action no action necessary. ture control, only mode, the hot water temperature in Zone2 Zone2 does not does not exceed that in Zone1. reach the set tem- Faulty wiring of motorized mixing valve Refer to "5.3 Wiring for 2-zone temperature control".
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. Troubleshooting Explanation - Solution Fault symptom Possible cause 27 The hydrobox that The hydrobox is designed to run in an operation • Normal operation. mode with a higher priority (i.e. DHW mode in this • After the DHW max. operation time has elapsed or the DHW max. temperature has was running in the case) at power recovery.
. Multiple outdoor units control .1 Wiring for multiple outdoor units control To establish a larger system, up to 6 outdoor units of the same model can be connected in one system. Note: PUHZ-FRP outdoor unit is not available for multiple outdoor units control. .1.1 Requirements ...
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. Multiple outdoor units control 9.2 Pipe work Following is the system example of two outdoor units being connected in one system. IMPORTANT NOTE Keep the minimum amount of water required in the space heating circuit according to the number of outdoor units. Flow temp.
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. Multiple outdoor units control System 3: 2-zone temperature control • Install a mixing tank (field supply) for 2-zone temperature control. • Install a low loss header (field supply). • Install booster heater toward the local system, relative to the low loss header. •...
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. Multiple outdoor units control System 4: Heating/Cooling system (with Boiler) • Install a mixing tank (field supply) for connection of the boiler. • Install a low loss header (field supply). • Install booster heater between low loss header and mixing tank. •...
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. Multiple outdoor units control .3 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 prod- uct warranty. All wiring should be according to national wiring regulations. .3.1 Master unit FTC4 (Master) Outdoor unit must NOT be connected to FTC4 (Master) unit.
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1. Power cable is run from the outdoor unit to a slave unit. 2. FTC (Slave) has indipendent power source. FTC4 (Master) (PAC-IF051B-E) used as slave • For wiring as a slave controller, refer to "4.1 Electrical connection". *1 *1 Don't connect the power cable to the booster heater because it doesn't work in slave controller setting.
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. Multiple outdoor units control Option 2: FTC4 (Slave) powered by independent source If FTC4 (Slave) and outdoor units have separate power supplies, the following re- CN108 quirements MUST be carried out: LED1 • Remove the short-circuited connector (CNS2) on FTC4 (Slave) (see .) FTC4 (Slave) •...
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. Multiple outdoor units control .4 Main controller wiring (a) Wire the main controller to TBI.2 RC terminals on the master unit. The main controller must NOT be connected to a slave unit. (b) Use the daisy chain wiring method to wire the master unit and slave units by connecting TBI.2 RC terminals. *1 *1 The maximum length between each units wiring is 10 m.
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. Multiple outdoor units control . Dip switch functions • Set refrigerant address on each outdoor unit from 1 to 6. Note: Do NOT use refrigerant address 0 as 0 is used for FTC4 (Master). The address range is from 1 to . Split model (SW1-3 to SW1-) Packaged model (SW-3 to SW-) Refrigerant address number...
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9.7 Connecting inputs/outputs When the wires are wired to adjacent terminals use ring terminals and insulate the wires. • Refer to "4.5 Connecting inputs/outputs" PAC-IF051B-E CN01 (BLK) TBO.1 CN3C (BLU)
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. Multiple outdoor units control Wiring specification and field supply parts Model and specifications Item Name External Outputs Use sheathed vinyl coated cord or cable. output wire Max. 30 m function Wire type: CV, CVS or equivalent Wire size: Stranded wire 0.5 mm² to 1.25 mm² Solid wire: ø0.65 mm to ø1.2 mm Note: Do not connect multiple water circulation pumps directly to each output (OUT1).
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. Multiple outdoor units control Basic Troubleshooting for multiple outdoor units control Explanation - Solution Fault symptom Possible cause Main controller display 1. There is no power supply to main 1. Check LED2 on the master controller. (See .) is blank.
10. Supplementary information 10.1 Refrigerant collecting (pumpdown) for split model systems only Refer to “Refrigerant collection” in the outdoor unit installation manual or service manual. 10.2 Back-up operation of boiler Heating operation is backed up by boiler. For more details, refer to the installation manual of PAC-TH011HT-E.
Local application factors * This FTC4 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.
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DICHIARAZIONE DI CONFORMITÀ CE EG-DEKLARATION OM ÖVERENSSTÄMMELSE MITSUBISHI ELECTRIC AIR CONDITIONING SYSTEMS EUROPE LTD. NETTLEHILL ROAD, HOUSTOUN INDUSTRIAL ESTATE, LIVINGSTON, EH54 5EQ, SCOTLAND, UNITED KINGDOM hereby declares under its sole responsibility that the heating system components described below for use in residential, commercial and light-industrial environments: erklärt hiermit auf seine alleinige Verantwortung, dass die unten beschriebenen Zubehörteile für das Heizungs- / Kühlungs-System zur Benutzung im häuslichen, kommerziellen und...
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Authorized representative in EU: MITSUBISHI ELECTRIC EUROPE B.V. HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K. This product is made by Mitsubishi Electric Air Conditioning Systems Europe Ltd.: NETTLEHILL Rd, HOUSTOUN IND ESTATE, LIVINGSTON, EH54 5EQ, UK BH79D300H01...
