Mitsubishi Electric PAC-IF081B-E Installation Manual
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Mitsubishi Electric PAC-IF081B-E Installation Manual

Mitsubishi Electric PAC-IF081B-E Installation Manual

Flow temp. controller
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FLOW TEMP. CONTROLLER [MAIN] (Cased)
PAC-IF081B-E
PAC-IF082B-E
PAC-IF083B-E
INSTALLATION MANUAL
For safe and correct use, read this manual thoroughly before installing the FTC unit.
FOR INSTALLER
English

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Summary of Contents for Mitsubishi Electric PAC-IF081B-E

  • Page 1 FLOW TEMP. CONTROLLER [MAIN] (Cased) PAC-IF081B-E PAC-IF082B-E PAC-IF083B-E INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, read this manual thoroughly before installing the FTC unit.

  • Page 2: Table Of Contents

    Should you need more information, please access above website to download and Sub)”. detailed manuals, select your region, select model name, then choose your Mitsubishi Electric is not responsible for the failure of locally supplied parts. language. 1. Safety precautions FOR INSTALLER Before installing the FTC unit, make sure you read all the “Safety pre-...

  • Page 3: Safety Precautions

    1. Safety precautions 1.4 Before starting the test run CAUTION: • Before starting operation, check that all protective parts are correctly • Turn on the main power switch of the outdoor unit more than 12 hours installed. Make sure not to get injured by touching high voltage parts. before starting operation.
  • Page 4 Screw Note: Do not remove the screws as the screws are component parts of the Wall Base cover and are not used for the installation of cover. PAC-IF081B-E 3.9 kg Weight PAC-IF082/083B-E 4.2 kg Allowable ambient temperature 0 to 35°C...

  • Page 5: System

    3. System The FTC (Main) 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 FTC (Sub), see section 9. 3.1 First step (Electrical work) Reference Power supply...
  • Page 6 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 THW2: Return water temp. DHW tank THW5B: DHW tank lower THW5B water temp.
  • Page 7 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 requirements for the safe use of FTC unit. Parts name Requirement Flow switch It is required to protect system from the effects of insufficient flow. Flow sensor It is required to detect an error in flow rate.
  • Page 8 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 bacteria growth. (Note) For systems without booster heater or immersion heater, ‘legionella prevention mode’...
  • Page 9 3. System 3.5 Local system 1-zone temperature control Zone 1 Zone 1 2-zone temperature control 1-zone temperature control with boiler Zone 1 Zone 1 Zone 2 2-zone temperature control & Buffer tank control 1-zone temperature control (2-zone valve ON/OFF control) Zone 1 Zone1 Zone 2...
  • Page 10 3. System 3.6 Minimum amount of water required in the space heating/cooling circuit Additional required water amount [L] Indoor unit *1 Water amount: If there is a bypass circuit, above table means minimum Outdoor heat pump unit containing water Average / Colder climate water amount in case of bypass.

  • Page 11: Electrical Work

    (DHW tank) (DHW tank) switch switch : PAC-IF081B-E : PAC-IF082/083B-E <Fig. 4.1.2> Electrical connections 1 phase/3 phase *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.
  • Page 12 (DHW tank) 50Hz switch : PAC-IF081B-E <Fig. 4.1.5> : PAC-IF082/083B-E Electrical connections 1 phase/3 phase *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.
  • Page 13 4. Electrical work 4.2 Connecting the main remote controller 4.2.1 Connect the main remote controller cable to FTC (Main) Connect the main remote controller cable to 1 and 2 on the terminal block (TB5) on the FTC (Main) controller. <Fig. 4.2.1> Wiring wire No.
  • Page 14 4. Electrical work 5. Install the bottom case. ■ Installation using a switch box ■ Direct wall installation • When installing the bottom case on the switch box, secure it to the switch • Thread the cable through the slot provided. box with screws.
  • Page 15 4. Electrical work 9. Fit the top case and the front cover onto the bottom case. The top case assembly (fitted with the front cover at factory shipment) has two tabs on top. Hook the tabs onto the bottom case and snap the top case onto the bottom case into place.
  • Page 16 (Main) servicing purposes. This facility is accessed via password protected service menus. To provide the best efficiency, Mitsubishi Electric recommends using Auto Adaptation func- tion based on room temperature for heating purposes only. To use this function a room thermistor needs to be present in a main living area. This can be done in a number of ways.
  • Page 17 Zone 2 it is wired to IN1 on TBI.1.) (Refer to 4.5.) Control option B This option features the main remote controller, the Mitsubishi Electric thermistor and a locally supplied thermostat that are wired to FTC (Main). Room temperature The thermistor is used to monitor the Zone 1 room temperature and the thermostat is...
  • Page 18 4. Electrical work CNW5 4.4. Connecting the thermistor cables CNW12 Connect the thermistor for the FTC (Main) controller. For multiple outdoor units control with FTC (Sub), see section 9. CN21 4.4.1 Connecting the cable of the thermistor (Room temp.) (TH1) CN20 TH1 is an optional part (PAC-SE41TS-E).
  • Page 19 4. Electrical work 4.4.5. Thermistor position and necessity <Thermistor position and necessity> Outdoor unit type DHW tank THW1 THW2 THW5B Present Split Absent — Present — Packaged Absent — — : Necessary. Connect the thermistor. —: Not necessary. Do not connect the thermistor. Packaged type outdoor unit with DHW tank and booster heater Split type outdoor unit with DHW tank and booster heater DHW tank...
  • Page 20 4. Electrical work 4.5 Connecting inputs/outputs For multiple outdoor units control with FTC (Sub), see section 9. Signal inputs Terminal Con- Name Item OFF (Open) ON (Short) block nector TBI.1 7-8 — Room thermostat 1 input *1 Refer to SW2-1 in <5.1 DIP switch functions>. TBI.1 5-6 —...
  • Page 21 4. Electrical work Thermistor inputs Name Terminal block Connector Item Optional part model — CN20 Thermistor (Room temp.) (Option) *1 PAC-SE41TS-E — CN21 Thermistor (Ref. liquid temp.) *2 — THW1 — CNW12 1-2 Thermistor (Flow water temp.) — THW2 — CNW12 3-4 Thermistor (Return water temp.) —...
  • Page 22 4. Electrical work N L N L TBO.1 1 2 3 4 5 6 TBO.2 TBO.3 1 2 3 4 5 6 7 8 TBO.4 1 2 3 4 TBO.5 1 2 3 4 5 6 7 8 TBI.6 2 1 OUT1 OUT2 OUT3 Close Open...
  • Page 23 4. Electrical work 4.6 Wiring for heater <Be careful 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 according to the following items. (Fig. 4.6.2) •...
  • Page 24 4. Electrical work 4.7 Wiring for 2-zone temperature control Connect the pipe work and locally supplied parts according to the relevant circuit diagram shown “Local system” in Section 3, of this manual. <Mixing valve> Zone 1 Connect the signal line to open Port A (hot water inlet port) to TBO. 2-6 (Open), the signal line to open Port B (cold water inlet port) to TBO.
  • Page 25 4. Electrical work 4.10 Installation procedure for DHW tank Note: Specification of 2-way valve (local supply) • Be aware that the respective DHW operations are greatly affected by the • Power supply: 230 V AC selections of the components such as tank, immersion heater, or the like. •...
  • Page 26 (8) FTC supports FAT12/FAT16/FAT32 file system but not NTFS/exFAT file system. (9) Mitsubishi Electric is not liable for any damages, in whole or in part, including failure of writing to a microSD memory card, and corruption and loss of the saved data, or the like.

  • Page 27: Dip Switch Setting

    SW1 SW1-1 Boiler WITHOUT Boiler WITH Boiler SW1-2 Heat pump maximum outlet water temperature 55ºC 60ºC ON *1 OFF: PAC-IF081B-E SW1-3 DHW tank WITHOUT DHW tank WITH DHW tank ON : PAC-IF082/083B-E OFF: PAC-IF081B-E SW1-4 Immersion heater WITHOUT Immersion heater...
  • Page 28 5. DIP switch setting Default settings: DIP switch Function Indoor unit model SW7 SW7-1 Mixing valve setting Only Zone 2 Zone 1 and Zone 2 SW7-2 Forced cooling mode input (IN13) logic change Active at short Active at open SW7-3 Cooling limit temp. input (IN15) logic change Active at short Active at open SW7-4...
  • Page 29 5. DIP switch setting 5.2 Outdoor unit type Set DIP SW1-7 to set the outdoor unit type. DIP SW1-7 Setting Note Split type Necessary to connect TH2 Packaged type Not necessary to connect TH2 Set DIP SW1-2 to set the heat pump maximum outlet water temperature. DIP SW1-2 Setting 55°C...
  • Page 30 5. DIP switch setting <Summary of Function setting> DIP SW1-3 DIP SW1-4 DIP SW1-5 DIP SW1-6 System diagram (DHW tank) (Immersion heater) (Booster heater) (BH function) (WITH DHW tank) (WITHOUT (WITH (For heating and DHW) DHW tank immersion heater) booster heater) THW5B 3-way valve ( THW1...
  • Page 31 5. DIP switch setting 5.4 Operation setting Set DIP SW1-8 to set whether the system has a wireless remote controller. DIP SW1-8 Setting WITHOUT wireless remote controller WITH wireless remote controller Set DIP SW2-1 to set the room thermostat 1 input (IN1) logic. DIP SW2-1 Setting Operation stop at thermostat short...
  • Page 32 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.

  • Page 33: Before Test Run

    6. Before test run 6.1. 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 1.0 MΩ.

  • Page 34: Remote Controller

    (Marking for WEEE) Your Mitsubishi Electric products have been manufactured with high quality materials and components which can be recycled and/or reused. This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from your household waste.
  • Page 35 To change the settings of your heating/cooling system, please use the main remote controller located on the wall or the front panel of the cylinder unit or hydrobox. The fol- lowing is a guide to viewing the main settings. Should you require more information, please contact your installer or local Mitsubishi Electric dealer. Some functions are not available depending on the system confi...
  • Page 36 Remote Controller 7. Remote controller Quick start When the main remote controller is switched on for the fi rst time, the screen automatically goes to the [Language], [Date/Time], [System confi guration], and quick start set- ting screen in order. On the quick start setting screen, the following items can be set. Note: [Electric booster heater use] This setting restricts the booster heater capacity.
  • Page 37 7. Remote controller Remote Controller <Main Controller Menu Tree> When the system is started up for the fi rst time, the quick start setting screen appears. [Home screen] The items with an asterisk (*) cannot be edited when the lock menu is on.
  • Page 38 7. Remote controller Remote Controller Continued from the previous page. When the system is started up for the fi rst time, the quick start <Main Controller Menu Tree> setting screen appears. [Home screen] The items with an asterisk (*) cannot be edited when the lock menu is on.
  • Page 39 7. Remote controller Remote Controller Continued from the previous page. When the system is started up for the fi rst time, the quick start setting screen appears. <Main Controller Menu Tree> • Note: The items with an asterisk (*) cannot be edited when the lock menu is on. (The icon State description indicated by toggle changes to when the lock menu is on.)
  • Page 40 7. Remote controller Remote Controller Menu subtitle Function Range Unit Default value DHW target temp. Desired temperature of stored hot water 40 - 70*1 °C [Max. temp. drop] Diff erence in temperature between the DHW maximum temperature and the temperature at which DHW 5 - 40*2 °C mode restarts...
  • Page 41 7. Remote controller Remote Controller Menu subtitle Description [Zone sensor selection] When 2-zone temperature control is active and wireless remote controllers are available, select [Zone sensor selection] in [Room sensors] from [Setting], and then select zone No. (Zone 1/Zone 2) to assign each remote controller. [Zone 1 programme] From [Zone 1 programme] or [Zone 2 programme], select a wireless remote controller to be used for monitoring the room temperature from [Zone 2 programme]...
  • Page 42 7. Remote controller Remote Controller Functions Symbol Description Option/Range Unit Default [Floor dry up function] Set the function to on and power on the system using the main remote con- on/off — off troller, and the dry up heating operation will start. [Flow temperature [Temperature increase step] It sets the increase step of the target fl...
  • Page 43 8. Service and maintenance Service and Maintenance Engineers Forms Should settings be changed from default, please enter and record new setting in ‘Commissioning/Field settings record sheet’ below. 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 Field Main remote controller screen...

  • Page 44: Service And Maintenance

    8. Service and maintenance Service and Maintenance Engineers Forms Commissioning/Field settings record sheet Field Main remote controller screen Parameters Default setting Notes setting Menu Service Thermistor adjustment THW1 −10°C to +10°C 0°C THW2 −10°C to +10°C 0°C THW5B −10°C to +10°C 0°C THW6 −10°C to +10°C...
  • Page 45 8. Service and maintenance Service and Maintenance Engineers Forms Commissioning/Field settings record sheet (continued from the previous page) Default Field Main remote controller screen Parameters Notes setting setting Service Operation Smart grid ready On/Off Off Menu settings Target temp. (+1 to +30°C) / -- (Non active) Heating On/Off...
  • Page 46 8. Service and maintenance Service and Maintenance Engineers Forms Commissioning/Field settings record sheet (continued from the previous page) Default Field Main remote controller screen Parameters Notes setting setting Service Energy Electric heater Booster heater 1 0 to 30 kW 2 kW Menu monitor capacity...

  • Page 47: Troubleshooting

    9. Troubleshooting <Troubleshooting by inferior phenomena> Fault symptom Possible cause Explanation - Solution Main remote controller 1. There is no power supply to main remote 1. Check LED2 on FTC (Main). (See Figure 4.5.1.) display is blank. controller. (i) When LED2 is lit. Check for damage or contact failure of the main remote controller wiring.
  • Page 48 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.
  • Page 49 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.
  • Page 50 9. Troubleshooting Fault symptom Possible cause Explanation - Solution The room tempera- 3-way valve failure Check the 3-way valve. ture rises during DHW operation. Water discharges 1. If continual – pressure relief valve may be 1. Turn the handle on the pressure relief valve to check for foreign objects in it. If the from pressure relief damaged.

  • Page 51: Multiple Outdoor Units Control

    10. Multiple outdoor units control 10.1 Wiring for multiple outdoor units control To establish a larger system, up to 6 outdoor units of the same model (same FTC (Sub) type / same capacity / same phase) can be connected in one system. (Main) Note: Main remote...
  • Page 52 10. Multiple outdoor units control System 2: Heating/Cooling & DHW system Wiring Component • Install DHW tank toward the outdoor unit , relative to the low loss header. Main Sub 1 *4 Sub 2 • Wire 3-way valve or 2-way valve 1, 2 to FTC (sub unit). Booster heater (local supply) •...
  • Page 53 10. Multiple outdoor units control System 3: 2-zone temperature control • Install a mixing tank (local supply) for 2-zone temperature control. • Install a low loss header (local supply). • Install booster heater toward the local system, relative to the low loss header. •...
  • Page 54 10. Multiple outdoor units control System 4: Heating/Cooling system (with Boiler) • Install a mixing tank (local supply) for connection of the boiler. • Install a low loss header (local supply). • Install booster heater between low loss header and mixing tank. •...
  • Page 55 10. Multiple outdoor units control 10.3 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. 10.3.1 Main unit FTC (Main) Outdoor unit must NOT be connected to FTC (Main) unit.
  • Page 56 10. Multiple outdoor units control 10.4 Main remote controller wiring (a) Wire the main remote controller to TB5 RC terminals on the main unit. The main remote controller must NOT be connected to a sub unit. (b) Tighten the main unit and sub units wiring together to TB5 RC terminals. *1 *1 The maximum length between each units wiring is 10 m.
  • Page 57 10. Multiple outdoor units control DIP Switch Function Main Sub*1 SW1 SW1-1 Boiler WITHOUT Boiler WITH Boiler — SW1-2 Heat pump maximum outlet water temperature 55˚C 60˚C SW1-3 DHW tank WITHOUT DHW tank WITH DHW tank SW1-4 Immersion heater WITHOUT Immersion heater WITH Immersion heater —...
  • Page 58 10. Multiple outdoor units control 10.7 Connecting inputs/outputs <Electrical connection for main controller> • Refer to "4.5 Connecting inputs/outputs" <Electrical connection for sub controller> PAC-IF08*B-E Signal inputs Name Terminal block Connector Item TB5 1-2 — Communication cable between indoor units TBI.1 5-6 —...
  • Page 59 10. Multiple outdoor units control Hydrobox <Fig. 10.7.4> Signal inputs Name Terminal block Connector Item TB5 1-2 CN22 Communication cable between indoor units INA1 TBI.6 3-5 CN1A Flow sensor input Wiring specification and local supply parts Item Name Model and specifications Signal input function Signal input wire Use sheathed vinyl coated cord or cable: 10 m max.
  • Page 60 10. Multiple outdoor units control Basic Troubleshooting for multiple outdoor units control Fault symptom Possible cause Explanation - Solution Main remote controller 1. There is no power supply to main remote 1. Check LED2 on the FTC main controller. (See Figure 4.5.1.) display is blank.

  • Page 61: Supplementary Information

    *3 Boiler heating is controlled on/off by the room temperature thermostat. *4 [Hybrid] automatically switches heat sources between heat pump (and electric heater) and boiler. Mitsubishi Electric Erp Directive Related Product Information: erp.mitsubishielectric.eu/erp Details and precautions on installation, maintenance and assembly can be found in the installation and or operation manuals.

  • Page 62: Local Application Factors

    Local application factors * This FTC is designed to connect Mr.Slim/ Ecodan inverter outdoor unit of MITSUBISHI ELECTRIC to local systems. Please check the following when designing the local system. * MITSUBISHI ELECTRIC does not take any responsibility for the local system design.
  • Page 63 This product is designed and intended for use in the residential, commercial and light-industrial environment. Importer: Mitsubishi Electric Europe B.V. Capronilaan 34, 1119 NS, Schiphol Rijk, The Netherlands French Branch 2, Rue De L’Union, 92565 RUEIL MAISON Cedex German Branch...
  • Page 64 Please be sure to put the contact address/telephone number on this manual before handing it to the customer. HEAD OFFICE: TOKYO BUILDING, 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN DG79H200H01 Printed in the UNITED KINGDOM...

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Pac-if082b-ePac-if083b-e

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