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Mitsubishi Electric PAC-IF032B-E Installation And Operation Manual

Flow temp. controller 2b (cased)
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FLOW TEMP. CONTROLLER 2B (Cased)
PAC-IF032B-E
INSTALLATION MANUAL
For safe and correct use, read this manual thoroughly before installing the FTC2B unit.
OPERATION MANUAL
For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.
FOR INSTALLER
FOR USER
English

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Summary of Contents for Mitsubishi Electric PAC-IF032B-E

  • Page 1 FLOW TEMP. CONTROLLER 2B (Cased) PAC-IF032B-E INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, read this manual thoroughly before installing the FTC2B unit. OPERATION MANUAL FOR USER For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.

  • Page 2: Table Of Contents

    Local application factors ................33 “FTC2B” is the abbreviation of “Flow Temperature Controller 2B”, which is described as “FTC2B” in this manual. Mitsubishi Electric is not responsible for the failure of locally supplied parts. 1. Safety precautions Before installing the FTC2B unit, make sure you read all the “Safety After installation, perform the test run to ensure normal operation.

  • Page 3: Installing The Ftc2B Unit

    2. Installing the FTC2B unit 2.1. Check the parts (Fig. 2.1.1) The FTC2B unit should be supplied with the following parts. – Part Name Q'ty symbol FTC2B unit Liquid refrigerant temp. thermistor (Lead wire: 5m/Red, Connector: 3p/Yellow) Flow water temp. and Return water temp. thermistor (Lead wire: 5m/Gray(Flow water temp.), THW1/2 5m/Black(Return water temp.), Connector: 4p/Red)

  • Page 4: System

    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) System diagram Power supplies Operation mode input Mode select Temp. setting Remote controller Remote controller Outdoor unit only Remote controller only Outdoor unit FTC2B Remote controller Local controller Remote controller Outdoor unit only Remote controller and external input (External input:...
  • Page 5 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 tank System diagram Thermistor Split type TH2: Liquid refrigerant temp. DHW tank (Present) THW1: Flow water temp. FTC2B THW2: Return water temp.
  • Page 6 3. System 3.3. Third step (Heater setting) Immersion heater Booster heater position Immersion heater Booster heater position System diagram Output signal both DHW Booster heater only DHW tank and Heating (Absent) FTC2B 4.4.3 Booster Heat emitter THW1* heater Booster heater both DHW DHW tank and Heating...
  • Page 7 3. System 3.4. Fourth step (Water circuit 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.
  • Page 8 3. System From the previous page. Parts name Requirement Water circulation pump (1) Packaged-type units Heating PUHZ-W50 PUHZ-W85 19.0 19.0 Available range Available range 17.0 17.0 15.0 15.0 13.0 13.0 11.0 11.0 10.0 11.0 12.0 13.0 14.0 10.0 12.0 14.0 16.0 18.0 20.0...

  • Page 9: Electrical Work

    4. Electrical work 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.
  • Page 10 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. <Fig. 4.2.1> Wiring wire No. × size (mm²): 2 × 0.3 (non polar) The 5 m wire is attached as an accessory.
  • Page 11 4. Electrical work 5. Install the back cover. Completely seal the gap around the cable access hole. ■ Installation using a switch box Double switch box See Step 2. • When installing the back cover in the switch box, secure at least two corners of the switch box with screws. Roundhead cross slot screws Remote controller cable...
  • Page 12 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. Check that the cover is securely installed. Caution: When the front cover is correctly attached to the back cover a click is heard.
  • Page 13 4. Electrical work 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. CNW12 For split Outdoor unit : Connect TH2. TB.143 THW1 For packaged Outdoor unit : It is NOT necessary to connect TH2.
  • Page 14 4. Electrical work 4.3.4. Thermistor position and necessity <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...
  • Page 15 4. Electrical work 4.4. Connecting external inputs/outputs LED3 LED5 FTC2B can be operated by following external input. CNW12 LED2 LED4 LED1 (RED) When the wires are wired to adjacent terminals use ring terminals and insu- CN21 late the wires. (YLW) CNW5 (WHT) TB143...
  • Page 16 4. Electrical work 4.4.3. Outputs Name Terminal block Item Signal / Current Max. total current OUT1 TB141 1-2 Water circulation pump output 230V AC 0.5A Max. 10mA Min. (Relay) OUT2 TB141 3-4 Booster heater 1 output 230V AC 0.5A Max. 10mA Min. (Relay) OUT3 TB141 5-6 Booster heater 2 output...

  • Page 17: Dip Switch Setting

    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.
  • Page 18 5. Dip switch setting 5.2. Outdoor unit type 5.3. Functions setting Set Dip SW 1-6 to set the outdoor unit type. Set Dip SW 1-3 to set whether the system has a DHW tank. Dip SW 1-3 Setting Note Dip SW 1- Setting Note WITH DHW tank...
  • Page 19 5. Dip switch setting 5.4. 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...
  • Page 20 5. Dip switch setting The priority order of external signals is DHW>Heating>Heating ECO>Holiday>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: SW1-1 OFF/SW1-2 OFF/SW1-8 OFF/SW1-9 OFF...
  • Page 21 5. Dip switch setting 5.4.2. DHW mode setting 5.4.4. Heating / Heating ECO / Cooling / Holiday mode setting Set Dip SW 2-1 to set DHW max. temparature drop (Difference in temperature be- Set Dip SW 2-3 to set economy setting for water circulation pump in Heating and tween DHW max.

  • Page 22: Before Test Run

    . 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 con- trol wiring, wrong polarity, and power cable is securely connected. Use a 500-volt megohmmeter to check that the resistance between the power sup- ply terminals and ground is at least 1.0MΩ.

  • Page 23: Remote Controller Operation

    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.
  • Page 24 . Remote controller operation .2. Remote Controller <Remote controller parts> 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.
  • Page 25 . Remote controller operation <Remote controller menu tree> User and installer Installer Initial Main Main menu Water temp. setting Heating Cooling Holiday Compensation curve F3/F4 Preview Edit (Low outdoor ambient temp. point) Edit (Low outdoor ambient temp. point) Initial settings Date/Time Language °C/°F...
  • Page 26 . Remote controller operation 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.
  • Page 27 . Remote controller operation 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.
  • Page 28 . Remote controller operation Temp. offset setting This setting is to adjust the difference between the actual temperature and the temperature sensed by T(a) = Actual DHW tank temp. the thermistor (THW1 or THW5) which tends to be lower due to heat leakage or something. THW5 FTC2B To set offset of DHW mode, select “DHW/Heating”.
  • Page 29 . Remote 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 Remote controller screen Parameters...

  • Page 30: Troubleshooting

    . Troubleshooting <Troubleshooting by inferior phenomena> Fault symptom Possible cause Explanation - Solution Remote controller 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.
  • Page 31 . Troubleshooting Fault symptom Possible cause Explanation - Solution Water heating takes longer. Heat pump not working. 1. Check heat pump – consult outdoor unit service manual. Booster heater cut-out tripped. 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.

  • Page 32: Supplementary Information

    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.

  • Page 33: Local Application Factors

    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.
  • Page 35 DICHIARAZIONE DI CONFORMITÀ CE EG-DEKLARATION OM ÖVERENSSTÄMMELSE MITSUBISHI ELECTRIC CORPORATION, SHIZUOKA WORKS 1-1, OSHIKA 3-CHOME, SURUGA-KU, SHIZUOKA-CITY 422-52, JAPAN 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...
  • Page 36 Installers: Please be sure to put your contact address/telephone number on this manual before handing it to the customer. 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...

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