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Mitsubishi Electric PAC-IF021B-E Manual

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Contents
1
Installation ..............................................................C-2
FTC(PAC-IF021B-E) .............................................................. C-2
FTC2(PAC-IF031B-E) ............................................................ C-3
2
System ....................................................................C-4
FTC(PAC-IF021B-E) .............................................................. C-4
FTC2(PAC-IF031B-E) ............................................................ C-6
3
Electrical work .......................................................C-9
FTC(PAC-IF021B-E) .............................................................. C-9
FTC2(PAC-IF031B-E) .......................................................... C-14
4
Switch setting ......................................................C-19
FTC(PAC-IF021B-E) ............................................................ C-19
FTC2(PAC-IF031B-E) .......................................................... C-21
5
Before test run .....................................................C-30
FTC(PAC-IF021B-E) ............................................................ C-30
FTC2(PAC-IF031B-E) .......................................................... C-31
6
Controller operation ............................................C-32
FTC2(PAC-IF031B-E) .......................................................... C-42
7
FTC(PAC-IF021B-E) ............................................................ C-52
FTC2(PAC-IF031B-E) .......................................................... C-53
8
Troubleshooting ...................................................C-54
FTC(PAC-IF021B-E) ............................................................ C-54
FTC2(PAC-IF031B-E) .......................................................... C-55
Flow temp. controller
C-1

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Summary of Contents for Mitsubishi Electric PAC-IF021B-E

  • Page 1: Table Of Contents

    Contents Installation ..............C-2 FTC(PAC-IF021B-E) .............. C-2 FTC2(PAC-IF031B-E) ............C-3 System ..............C-4 FTC(PAC-IF021B-E) .............. C-4 FTC2(PAC-IF031B-E) ............C-6 Electrical work ............C-9 FTC(PAC-IF021B-E) .............. C-9 FTC2(PAC-IF031B-E) ............C-14 Switch setting ............C-19 FTC(PAC-IF021B-E) ............C-19 FTC2(PAC-IF031B-E) ............C-21 Before test run .............C-30 FTC(PAC-IF021B-E) ............C-30 FTC2(PAC-IF031B-E) ............

  • Page 2: Installation

    Installation (FTC) Flow temp. controller 1.1 Check the parts (Fig.1-1) The FTC unit should be supplied with the following parts. Part Name Q'ty FTC unit Thermistor Remote controller cable(5m) Remote controller 1.2 Choosing the FTC unit installation location • Do not install the FTC unit in outdoor location as it is designed TEMP.

  • Page 3: Ftc2(Pac-If031B-E

    Installation (FTC2) Flow temp. controller FTC2 1.1 Check the parts (Fig. 1-1) The FTC2 unit should be supplied with the following parts. Part Name Q'ty FTC2 unit Thermistor Remote controller cable (5m) Remote controller 1.2 Choosing the FTC2 unit installation TEMP.

  • Page 4: System

    System (FTC) Flow temp. controller To start, check your system type by following the fl ow chart below. (FTC can be used for 3 types of systems.) Start Heat Pump switch ON/OFF Your system is By remote controller and the operation mode SIMPLE SYSTEM.
  • Page 5 System (FTC) Flow temp. controller Refer to the relevant sections for details according to your system type. Power Thermistor Switch External External System Outdoor System diagram supplies (TH1, TH2) setting input output unit Outdoor unit 3.2.1 3.4.1 SPLIT type BASIC 3.1.1 3.2.2 Local controller...

  • Page 6: Ftc2(Pac-If031B-E

    System (FTC2) Flow temp. controller FTC2 The FTC2 is designed for use with a number of heat pump systems. Please refer to the following table to fi nd the relevant installation information for your system. First step (Electrical work) Power supplies (Outdoor only) Remote controller or external input Operation mode...
  • Page 7 System (FTC2) Flow temp. controller Second step (thermistor setting) Outdoor type (SPLIT type / PACKAGED type) Domestic Hot Water (DHW) tank Thermistor Outdoor unit type DHW tank System diagram (TH1,TH2,TH5) SPLIT type TH1: actual flow water temp. DHW tank TH2: refrigerant pipe temp. (Present) FTC2 TH5: actual DHW tank temp.
  • Page 8 System (FTC2) Flow temp. controller Third step (Heater setting) Immersion heater Booster heater position Booster heater Immersion heater System diagram Output signal position both DHW Booster heater Sanitary tank and Heating only (Absent) FTC2 Booster Radiator etc. heater both DHW Booster heater Sanitary tank and Heating...

  • Page 9: Electrical Work

    FTC unit/outdoor unit connecting cables FTC unit E: FTC unit/outdoor unit connecting cables Earth cable Photo. 3-2 FTC unit model PAC-IF021B-E FTC unit-Outdoor unit 3× 1.5 (polar) 1 × Min.1.5 FTC unit-Outdoor unit earth FTC unit-Outdoor unit S1-S2 AC 230 V...
  • Page 10 Set the SW8-3 to ON. S2 S3 CNS2 Photo. 3-3 E: FTC unit/outdoor unit connecting cable FTC unit model PAC-IF021B-E Power Supply Cables FTC unit power supply ~/N (Single Phase), 50 Hz, 230 V FTC unit input capacity 16 A Main switch (Breaker) FTC unit power supply &...
  • Page 11 Electrical work (FTC) Flow temp. controller 3.2. Connecting thermistor cable Connect the thermistor 2 for the FTC controller. TB61 3.2.1. Connecting the actual fl ow water temp. thermistor (TH1) Connect the thermistor for the actual fl ow water temp. to 1 and 2 on the terminal block (TB61) on the FTC controller.
  • Page 12 Electrical work (FTC) Flow temp. controller 3.3. Connecting the wired remote controller 3.3.1 Connecting the wired remote controller cable to FTC Connect the wired remote controller cable to 5 and 6 on the termi- nal block (TB62) on the FTC controller. (Photo. 3-4) Wiring wire No.
  • Page 13 Electrical work (FTC) Flow temp. controller 3.4.2 EXTERNAL INPUT ( analog signal ) 4-20mA / 1-5V / 0-10V Connect the transmission cables to No. 3 and 4 on the terminal block (TB62). At site No. 3 on the terminal block(TB62) : Plus side No.

  • Page 14: Ftc2(Pac-If031B-E

    Electrical work (FTC2) Flow temp. controller FTC2 3.1. FTC2 (Photo. 3-1) 1. Remove the cover. 2. Wire the power cable and control cable separately through the respective wiring inlets given in the photo. • Make sure to put screws tightly. A Inlet for control cable B Inlet for power cable C Clamp...
  • Page 15 Electrical work (FTC2) Flow temp. controller 3.2. Connecting the wired remote controller 3.2.1. Connecting the wired remote controller cable to FTC2 Connect the wired remote controller cable to 5 and 6 on the termi- nal block (TB62) on the FTC2 controller. (Photo. 3-3) Wiring wire No.
  • Page 16 Electrical work (FTC2) Flow temp. controller 3.3. Connecting external input TB142 FTC2 can be operated by following external input. 3.3.1. EXTERNAL INPUT ( Contact signal ) Terminal block OFF (Open) ON (Short) Remark TB142 1-2 (IN1) Emergency TB142 3-4 (IN2) Legionella prevention *3 TB142 5-6 (IN3)
  • Page 17 Electrical work (FTC2) Flow temp. controller 3.4. Connecting thermistor cable Connect the thermistor 2 for the FTC2 controller. TB61 3.4.1. Connecting the actual fl ow water temp. thermistor (TH1) Connect the thermistor for the actual fl ow water temp. to 1 and 2 on the terminal block (TB61) on the FTC2 controller.
  • Page 18 Electrical work (FTC2) Flow temp. controller 3.5. Connecting external output signal All outputs has AC 230V signal Output Signal Max. current OUT1 Water circulation pump AC 230A signal for relay drive 0.5 A OUT2 Booster heater 1 AC 230A signal for relay drive 0.5 A OUT3 Booster heater 2...

  • Page 19: Switch Setting

    Switch setting (FTC) Flow temp. controller Set the dip switch on the FTC (PCB) according to the following table. System ON/OFF Change mode Change TEMP. Outdoor unit *4 SW1-1 SW1-2 SW1-5 SW1-6 SW6-1 SW6-2 Input Input Input BASIC External input External input DIP switch on PCB SPLIT type...
  • Page 20 Switch setting (FTC) Flow temp. controller SW2-1~8 SW3-1~3 Fixed set temperature with DIP switch of FTC (Available when SW1-6 is ON) SW2-1~3 Fixed set temperature for Heating mode (Table 1~2 depends on SW1-7,8.) SW2-1 SW2-2 SW2-3 Table1 Table2 25 ºC 25 ºC 30 ºC 30 ºC...

  • Page 21: Ftc2(Pac-If031B-E

    Switch setting (FTC2) Flow temp. controller FTC2 The functionality of the heat pump is determined by the setting of the Dip switches from SW1 to SW3, and SW6 found on the FTC2 controller. (Photo. 4-1) Photo. 4-1 4.1. Operation mode input method Input method can be selected with Dip SW 1-1 / 1-2 ON/OFF Input Change mode Input...
  • Page 22 Switch setting (FTC2) Flow temp. controller 4.3. Heater setting Set Dip SW 1-4 according to whether the system has an Immersion heater. SW 1-4 Setting Without Immersion heater With Immersion heater Set Dip SW 1-5 according to the location of Booster heater. SW 1-5 Setting For both Domestic Hot Water (DHW) and Heating...
  • Page 23 Switch setting (FTC2) Flow temp. controller 4.5 Operation setting 4.5.1. Automatic change over mode When a system includes a Domestic Hot Water (DHW) tank and a space heating requirement Automatic change over mode should be selected. Selection is made with Dip SW1-8. If the system does NOT include a DHW tank Dip SW 1-3 is ON and Automatic change over mode is invalid.
  • Page 24 Switch setting (FTC2) Flow temp. controller System examples Example 3: SW 1-1 ON / SW 1-2 OFF / SW 1-8 ON A Local controller and our Remote controller (PAR-W21MAA) are used or SW 1-1 ON / SW 1-2 OFF / SW 1-8 OFF for system control.
  • Page 25 Switch setting (FTC2) Flow temp. controller 4.5.3. DHW Heating Procedure The heating of DHW tank is done in 2 stages, firstly the "Heat pump phase" followed by the "Electric heater phase". 4.5.3.1. Heat Pump Phase The Heat pump phase for DHW mode, is used when the temperature difference between tank set temperature and TH5 is either 10 deg C or 20 deg C (∆T ∆T is selected using Dip SW2-1...
  • Page 26 Switch setting (FTC2) Flow temp. controller System Characteristics Heat pump Water circulation 3-port valve Booster heater Booster heater Immersion System type status pump status status 1 status 2 status heater status A (SW1-5 OFF) B (SW1-4 ON, SW1-5 ON, SW2-7 OFF) Heater operation at Electric heater phase in Domestic Hot Water mode SW 2-7 SW 1-4...
  • Page 27 Switch setting (FTC2) Flow temp. controller 4.5.6. Defrost operation The heat pump process requires regular defrost cycles. The FTC2 operates as follows when the system receives defrost signal and when it completes defrosting. 4.5.6.1. When defrost signal is received 3-port valve In DHW mode the 3-port valve remains ON.
  • Page 28 Switch setting (FTC2) Flow temp. controller 4.5.9. Emergency (electric heater only) mode Emergency mode is available in case of Heat pump unit's failure. In this mode, only electric heater operates as a heat source. Heat pump unit operation comes first in any operation mode, except in Emergency mode. In the Emergency mode, the heater is switched ON without operating Heat pump unit.
  • Page 29 Switch setting (FTC2) Flow temp. controller 4.5.10. SUMMARY of Dip Switch Functions Dip switch Function Change mode Change TEMP. SW1-1 SW1-2 ON/OFF Input Input Input SW1-1 Remote controller Remote controller Remote controller or External input External input Remote controller System select Analog input Analog input External input...
  • Page 30 Before test run (FTC) Flow temp. controller 5.1. 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 wiring, wrong polarity, and no disconnection of one phase in the supply. Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0MΩ.

  • Page 31: Before Test Run

    Before test run (FTC2) low temp. controller FTC2 5.1. 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 wiring, wrong polarity, and no disconnection of one phase in the supply. Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0MΩ.

  • Page 32: Ftc(Pac-If021B-E

    Controller operation (FTC) Flow temp. controller 6.1 Parts name ■ Wired Remote-Controller Display Section Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown. During actual operation, only the Time/Timer Display relevant items will be displayed.
  • Page 33 Controller operation (FTC) Flow temp. controller <Screen confi guration> For details on setting the language for the remote controller dis- Function Selection of remote Set Day/Time play, refer to 6.5. Function Selection. controller The initial language setting is English. TIME SUN ●...
  • Page 34 Controller operation (FTC) Flow temp. controller 6.3.2. Mode select <How to Lock the Buttons> 1. While holding down the CIR. WATER button 4, press and hold Press operation mode ( ) button 2 and select operation mode . down the ON/OFF button 1 for 2 seconds. The “Locked” indica- tion appears on the screen (at 1), indicating that the lock is now Heating mode (Space heating)
  • Page 35 Controller operation (FTC) Flow temp. controller 6.4.2. Error Codes indication ERROR CODE ON lamp ON/OFF (Blinking) Error Code Indoor Unit No. Indoor Unit’s Refriger- ant Address Alternating Display If you have entered contact number to be called in the event of a problem, the screen displays this number. (You can set this up under Function Selection of remote controller.
  • Page 36 Controller operation (FTC) Flow temp. controller [Function selection flow chart] Setting language(English) Hold down the ( ) button and press the ( ) button for 2 seconds. Normal display Hold down the ( ) button and press the ( ) button for 2 seconds. Change Dot display Language...
  • Page 37 Controller operation (FTC) Flow temp. controller [Detailed setting] [4]-3 Mode selection setting [4]-1 CHANGE LANGUAGE setting (1) Remote controller main/sub setting The language that appears on the dot display can be selected. • To switch the setting, press the [ ON/OFF] button D.
  • Page 38 Controller operation (FTC) Flow temp. controller [Dot display table] Selecting language English German Spanish Russia Italian French Swedish Waiting for start-up Operation mode Heating Heating ECO Hot water Anti-freeze Cooling Stand by (Hot adjust) Defrost Not use button Check (Error) Test run Self check Change language...
  • Page 39 Controller operation (FTC) Flow temp. controller [Dot display table] Selecting language English German Spanish Russian Italian French Swedish Auto off timer Collective setting Heating Water temperature (Initial setting) Heating ECO Hot water Anti-freeze Cooling Option setting(Heating) Option setting(Cooling) Water circuit check Waiting for response Waiting for setting Not dealt with...
  • Page 40 Controller operation (FTC) Flow temp. controller 6.6. Initial setting by remote controller ˚C ˚C TEMP. ON/OFF (1) Press the button for 3 seconds to activate the initial setting mode. INITIAL SETTING (2) [DISPLAY WATER TEMP WATER TEMP WATER TEMP WATER TEMP WATER TEMP WATER TEMP TEMP OFFSET...
  • Page 41 Controller operation (FTC) Flow temp. controller <Temperature OFFSET setting> This setting is to adjust the difference between the actual flow water temperature at the refrigerant-water heat exchanger outlet and the temperature sensed by TH1 which tends to be lower due to heat leakage from water piping. HEATING mode T(a)=Actual Flow water temp.(outlet side)
  • Page 42 Controller operation (FTC2) Flow temp. controller FTC2 6.1. Parts name ■ Wired Remote-Controller Display Section Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown. During actual operation, only the Time/Timer Display relevant items will be displayed.
  • Page 43 Controller operation (FTC2) Flow temp. controller <Screen confi guration> For details on setting the language for the remote controller dis- Function Selection of remote Set Day/Time play, refer to 6.5. Function Selection. controller The initial language setting is English. TIME SUN ●...
  • Page 44 Controller operation (FTC2) Flow temp. controller 6.3.2. Mode select <How to Lock the Buttons> 1. While holding down the CIR. WATER button 4, press and hold Press operation mode ( ) button 2 and select operation mode . down the ON/OFF button 1 for 2 seconds. The “Locked” indica- Heating mode (Space heating) tion appears on the screen (at 1), indicating that the lock is now...
  • Page 45 Controller operation (FTC2) Flow temp. controller 6.4.2. Error Codes indication ERROR CODE ON lamp ON/OFF (Blinking) Error Code Indoor Unit No. Indoor Unit’s Refriger- ant Address Alternating Display If you have entered contact number to be called in the event of a problem, the screen displays this number. (You can set this up under Function Selection of remote controller.
  • Page 46 Controller operation (FTC2) Flow temp. controller [Function selection flow chart] Setting language (English) Hold down the ( ) button and press the ( ) button for 2 seconds. Normal display Hold down the ( ) button and press the ( ) button for 2 seconds. Change Dot display Language...
  • Page 47 Controller operation (FTC2) Flow temp. controller [Detailed setting] [4]-3 Mode selection setting [4]-1 CHANGE LANGUAGE setting (1) Remote controller main/sub setting The language that appears on the dot display can be selected. • To switch the setting, press the [ ON/OFF] button D.
  • Page 48 Controller operation (FTC2) Flow temp. controller [Dot display table] Selecting language English German Spanish Russia Italian French Swedish Waiting for start-up Operation mode Heating Heating ECO Hot water Anti-freeze Cooling Stand by (Hot adjust) Defrost Not use button Check (Error) Test run Self check Change language...
  • Page 49 Controller operation (FTC2) Flow temp. controller [Dot display table] Selecting language English German Spanish Russian Italian French Swedish Auto off timer Collective setting Heating Water temperature (Initial setting) Heating ECO Hot water Anti-freeze Cooling Option setting (Heating) Option setting (Cooling) Water circuit check Waiting for response Waiting for setting...
  • Page 50 Controller operation (FTC2) Flow temp. controller 6.6. Initial setting by remote controller ˚C ˚C TEMP. ON/OFF (1) Press the button for 3 seconds to activate the initial setting mode. INITIAL SETTING (2) [DISPLAY WATER TEMP WATER TEMP WATER TEMP WATER TEMP WATER TEMP WATER TEMP TEMP OFFSET...
  • Page 51 Controller operation (FTC2) Flow temp. controller <Temperature OFFSET setting> This setting is to adjust the difference between the actual temperature and the temperature sensed by the thermistor (TH1 or TH5) which tends to be lower due to heat leakage or something. TEMP OFFSET HEATING (temperature offset setting for Domestic Hot Water) T(a) = Actual DHW tank temp.

  • Page 52: Ftc(Pac-If021B-E

    Defi nition of analog signal (FTC) Flow temp. controller Defi nition of analog signal by remote controller (Required only for ANALOG TEMP. system) Set following 2 parameters to assign the target temperature value to analog signal figures. (1) Press button for 3 seconds to activate this setting mode.
  • Page 53 Defi nition of analog signal (FTC2) Flow temp. controller FTC2 Defi nition of analog signal by remote controller (Required only for ANALOG TEMP. system) Set following 2 parameters to assign the target temperature value to analog signal figures. (1) Press button for 3 seconds to activate this setting mode.

  • Page 54: Ftc(Pac-If021B-E

    (FTC) Troubleshooting Flow temp. controller ■ Water does not heat or cool well. Clean the fi lter of water piping. (Flow is reduced when the fi lter is dirty or clogged.) ■ Check the temperature adjustment and adjust the set temperature. ■...

  • Page 55: Ftc2(Pac-If031B-E

    (FTC2) Troubleshooting Flow temp. controller FTC2 ■ Water does not heat or cool well. Clean the fi lter of water piping. (Flow is reduced when the fi lter is dirty or clogged.) ■ Check the temperature adjustment and adjust the set temperature. ■...
  • Page 56 Local application factors * This FTC3 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 57 C-57 C-57...

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