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Mitsubishi Electric PAC-IF033B-E, Installation Manual

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Mitsubishi Electric PAC-IF033B-E Installation Manual Download Page 9

EN-9

3. System

 

L 

N 

TB6 

FTC2BR  

To control

board

 

 

Wiring

circuit

breaker

or

Isolating

switch

 

 

L 

Outdoor unit  

S2 

S3 

S1

S2

S3

S1

 

N

Wiring

circuit

breaker

or

Isolating

switch   

 

 

 

Earth

leakage

circuit

breaker

Power

supply

~/N

230V

50Hz 

Power

supply

~/N

230V

50Hz 

Earth

leakage

circuit

breaker

 *1.   

N

L2

L3

L
N

 

TB6 

FTC2BR

To control  

board 

 
 

Wiring

circuit

breaker

or

Isolating

switch

 

 

 

Power

supply

~/N

230V

50Hz 

Outdoor unit  

S2 
S3 

S1

S2

S3

S1

 

Wiring

circuit

breaker

or

Isolating

switch

 

 

 

Earth

leakage

circuit

breaker  

Power

supply

3N~

400V

50Hz

 

Earth

leakage

circuit

breaker

*1    

L1

INPUT

Remote controller

Thermistor

OUTPUT

Power cables

CN401

(WH)

CN1A

(WH)

CNS2

(RD)

To outdoor unit

Option 2: FTC2BR powered by independent source

<Fig.  4.1.4>

Electrical connections 1 phase/3 phase

<Fig.  4.1.3> 

Wiring for FTC2BR

<1 phase>

<3 phase>

FTC2BR power supply

~/N 230 V 50 Hz

FTC2BR input capacity

16A

Wiring

Wiring No. × size(mm²)

FTC2BR - power supply

2×Min. 1.5

FTC2BR - power supply earth

1×Min. 1.5

FTC2BR - Outdoor unit *2

2×Min. 0.3

FTC2BR - Outdoor unit earth

Circuit rating

FTC2BR L-N  *3

230V AC

FTC2BR - Outdoor unit S1 - S2 *3

FTC2BR - Outdoor unit S2 - S3 *3

24V DC

If FTC2BR and outdoor units have separate power supplies, the following

requirements MUST carried out.

• Remove the short circuited connector CNS2.

• Turn on the outdoor unit before the FTC2BR.

• Outdoor unit DIP switch settings changed to SW8-3 ON.

•  Power by independent source is not available for particular models of outdoor unit 

model.

For more detail, refer to the connecting outdoor unit installation manual.

Notes: 

1.  Do not run the low voltage cables through a slot that the high voltage ca-

bles go through.

2. Do not bundle power cables together with other cables.

3. Bundle cables as Fig. 4.1.3 by using clamps.

*1. A breaker with at least 3.0 mm contact separation in each pole shall be provided.

Use earth leakage breaker (NV).

The breaker shall be provided to ensure disconnection of all active phase 

conductors of the supply.

*2. Max. 45 m

If 2.5 mm² used, Max. 50 m

If 2.5 mm² used and S3 separated, Max. 80 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. FTC2BR/outdoor unit connecting cords shall not be lighter than

polychloroprene sheathed flexible cord. (Design 60245 IEC 57)

FTC2BR unit power supply cords shall not be lighter than

polychloroprene sheathed flexible cord. (Design 60227 IEC 53)

3. Install an earth longer than other cables.

en

Summary of Contents for PAC-IF033B-E

Page 1: ...English FLOW TEMP CONTROLLER 2BR Cased PAC IF033B E INSTALLATION MANUAL For safe and correct use read this manual thoroughly before installing the FTC2BR unit FOR INSTALLER ...

Page 2: ...an unusual environment If the FTC2BR 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 bui...

Page 3: ... the weight and vibration of the unit Avoid locations where the unit is exposed to oil steam or sulfuric gas Do not install in location that is hot or humid for long periods of time Fig 2 1 1 22 11 5 Unit mm 11 5 5 12 10 200 313 3 ELECTRIC WIRE INLET When installed on a wall Lower side 278 336 69 TB143 TB141 TB142 C C C C TB6 Fig 2 3 4 Top Bottom Pull the cover to the front and remove it Slide the...

Page 4: ...1 4 4 2 External input and analog input Outdoor unit only Local controller External input Analog signal Local controller 4 1 Power supplies Operation mode input Outdoor unit FTC2BR Remote controller Outdoor unit FTC2BR Remote controller Local controller ON OFF MODE Local controller ON OFF MODE Temp Outdoor unit FTC2BR The FTC2BR is designed for use with a number of heat pump systems Please refer t...

Page 5: ...Return water temp Packaged type 4 3 4 3 4 3 4 3 Thermistor Outdoor unit FTC2BR DHW tank THW5 Heat exchanger Outdoor unit FTC2BR Heat exchanger THW1 THW1 THW1 THW1 Outdoor unit FTC2BR DHW tank THW5 Heat emitter Heat emitter Heat emitter Heat emitter TH2 THW2 THW2 THW2 THW2 Heat exchanger Outdoor unit FTC2BR TH2 Heat exchanger Present Present Absent Absent Outdoor unit type DHW tank 3 2 Second step ...

Page 6: ...t Absent 4 4 4 4 3 4 4 4 4 3 4 4 4 4 3 3 3 Third step Heater setting Immersion heater Booster heater position Note When the booster heater is positioned for heating only flow water temp thermistor THW1 is not able to detect the outlet water temperature of circulation water during DHW or legionella prevention mode To determine more accurately if the heater is ON with DHW or legionella prevention mo...

Page 7: ...y Connect the surge absorber according to the load at site Separate power for heater Install an earth leakage circuit breaker for heater separate from control power Heater 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 ...

Page 8: ...echnician 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 Option 1 FTC2BR powered...

Page 9: ...r units have separate power supplies the following requirements MUST carried out Remove the short circuited connector CNS2 Turn on the outdoor unit before the FTC2BR Outdoor unit DIP switch settings changed to SW8 3 ON Power by independent source is not available for particular models of outdoor unit model For more detail refer to the connecting outdoor unit installation manual Notes 1 Do not run ...

Page 10: ... the 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 cover Wall plug 2 Drill an installation hole in the wall Installation using a switch box Drill a hole in the wall for the switch box and install the switch box in the hole Fit the conduit tube into the switch box Direct wa...

Page 11: ... 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 cosmetic cover by knife or nipper Thread the remote controller cable from the slot behind the back cover through this access hole 7 Plug the lead wire cable into the front cover Plug th...

Page 12: ... along the wall surface Thread the remote controller cable through the cable access hole at the top of the remote controller Seal the gap between the cable and the access hole with putty Use a cable cover Disassembling the front cover and the cosmetic cover 1 Remove the cosmetic cover Insert a flat head screwdriver into either of two open slots at the bottom of the remote controller and move the s...

Page 13: ...it 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 attach THW1 where it correctly detects Flow temp water oulet side 4 3 3 Connecting the actual DHW tank thermistor THW5 cable Connect the TH...

Page 14: ...booster heater piping SPLIT type without a refrigerant water HEX inside 1 Refrigerant water HEX DHW tank temperature Water OUTLET side after booster heater Water piping Water INLET side THW1 TH2 THW5 THW2 1 FTC2BR FTC2BR FTC2BR FTC2BR Outdoor unit SPLIT type outdoor unit with booster heater THW1 TH2 THW2 THW5 Not necessary 1 Refrigerant Refrigerant LIQUID side piping SPLIT type without a refrigera...

Page 15: ...DHW mode Input signal Pulse Pulse specifications ON short OFF open When SW1 1 or SW1 2 or both are ON the mode is switched into DHW mode 4 4 2 External inputs Analog signal 4 20mA 1 5V 0 10V Connect the transmission cables to No 11 and 12 on the terminal block TB143 No 11 on the terminal block TB143 Plus side No 12 on the terminal block TB143 Minus side Reference side Wiring specification and fiel...

Page 16: ...ontactor or relay for immersion heater Immersion heater Direct cut off thermostat OUT4 TB141 7 8 Earth leakage circuit breaker for booster heater Contactor or relay for protecting booster heater Indirect cut off thermostat Cut off thermostat Contactor or relay for booster heater 1 OUT2 TB141 3 4 OUT3 TB141 5 6 Contactor or relay for protecting Booster heater1 Booster heater2 OUT3 TB141 5 6 Wiring ...

Page 17: ... Heating mode OFF Heating circuit ON DHW circuit OFF SW3 2 Water circulation pump manual operation OFF ON OFF SW3 3 3 way valve manual operation OFF ON OFF SW3 4 Room thermostat input Ana IN1 logic change Operation stop at thermostat short Operation stop at thermostat open OFF SW3 5 Comp OFF for mode change DHW Heating Inactive Active OFF SW3 6 Flow switch input IN3 logic change Failure detection ...

Page 18: ...mitter DHW tank THW5 THW1 THW2 Immersion heater 3 way valve OFF WITH DHW tank OFF WITHOUT immersion heater ON For heating only Booster heater Heat emitter DHW tank THW5 THW1 THW2 3 way valve OFF WITH DHW tank ON WITH immersion heater ON For heating only Booster heater Heat emitter DHW tank THW5 THW1 THW2 Immersion heater 3 way valve ON WITHOUT DHW tank Booster heater Heat emitter THW1 THW2 Summary...

Page 19: ...0mA OFF 0 2mA Set Dip SW 1 7 to set activate or deactivate cooing mode Dip SW 1 7 Setting OFF Inactive ON Active When Dip SW 1 7 is OFF cooling mode is not available Set Dip SW 1 8 to set activate or deactivate automatic change over mode DHW Heating Dip SW 1 8 Setting OFF Active ON Inactive Set Dip SW 1 9 to set activate or deactivate automatic change over mode DHW Cooling Dip SW 1 9 Setting OFF A...

Page 20: ...utput separate signals for each operation mode This can be realised by using a schedule timer and relays SW1 1 ON SW1 2 OFF SW1 8 OFF SW1 9 OFF or SW1 1 ON SW1 2 OFF SW1 8 ON SW1 9 ON Example 4 Only a Local controller is used for system control The system operates in the same way as Example 3 except that the target temperatures for each mode must also be inputted via the analogue signal from the l...

Page 21: ...0 minutes consecutive operation NOTE Even if you forget to reset the Dip SW settings above the normal operation mode can be recovered automatically in 60 minutes 5 6 Emergency mode 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 automat ically controls between ...

Page 22: ...h pressure protection Flow rate of the heating circuit may be reduced Check water circuit Plate heat exchanger may be clogged Check the plate heat exchanger Outdoor unit failure Refer to outdoor unit service manual LF Light down Light down Flow sensor failure Check flow sensor cable for damage or loose connections P1 Blink Light down Thermistor Flow water temp THW1 failure Check resistance across ...

Page 23: ...e system is switched off or the power supply is disconnected the water circuit protection functions will NOT operate Please beware that with out these safety functions enabled the water circuit may potentially become exposed to damage Main screen icons No Item Icon Description 1 Operation prohi bition ON OFF Mode Set temperature 2 Operation lock Displayed when the buttons are locked 3 Holiday mode...

Page 24: ...e Time Language C F Temp display Contact number Time display Main Sub Service Password protected Function setting Restriction Operation lock Mode skip Temp range DHW Heating Cooling Temp offset setting DHW Heating Cooling Temp Analog signal DHW Heating Cooling Self check Running information Error history Password protection Remote controller check 7 Remote controller operation User and installer I...

Page 25: ...g Installer level Compensation curve Initial settings Service Password protected Use the F2 and F3 buttons to move between the icons The highlighted icon will appear as a larger version in the cen tre of the screen Press CONFIRM to select and edit the highlighted mode Water temp setting Set the initial value of the set water temperature for following modes DHW mode Heating mode Cooling mode Holida...

Page 26: ...4 to highlight either 1 2 3 see below 4 Press CONFIRM Note Changes can ONLY be made to Mode 1 Mode 1 Setting number meanings 1 Power failure automatic recovery NOT available 2 Power failure automatic recovery AVAILABLE Approx 4 minute delay after power is restored 3 No function Restriction Operation lock Restrict the operation of switching ON OFF changing the operation mode and the set temperature...

Page 27: ...press F3 button Yes Password protection Password protection is available to prevent unauthorised access to the service menu by untrained persons 1 When password input screen is displayed use buttons F1 and F2 to move left and right between the four digits F3 to lower the selected digit by 1 and F4 to increase the selected digit by 1 2 When you have input your password press CONFIRM 3 The password ...

Page 28: ...PM hh mm hh mm Service Restriction Operation lock none Mode Temp All none Mode skip DHW Used Not used Skipped Used Heating Used Not used Skipped Used Heating Eco Used Not used Skipped Used Cooling Used Not used Skipped Used Holiday Used Not used Skipped Used Temp range DHW 20 60 C 20 60 C Heating 20 60 C 20 60 C Cooling 5 25 C 5 25 C Temp offset setting DHW Heating 15 15 C 0 Cooling 15 15 C 0 Temp...

Page 29: ...re 4 Check the FTC2BR control board Check the fuse on FTC2BR control board Check for faulty wiring If no problem found with the wiring the FTC2BR control board is faulty FTC2BR powered on independent source 1 FTC2BR is not supplied with 220V to 240V AC 1 Check the voltage across the L and N terminals on the indoor power supply terminal block When the voltage is not 220 to 240V AC check for faulty ...

Page 30: ... pressure relief valve to check for foreign objects in it If the problem is not still solved replace the pressure relief valve with a new one 2 If intermittent expansion vessel charge may have reduced bladder perished 2 Check pressure in expansion vessel Recharge to 1 bar if necessary If bladder perished replace expansion vessel with a new one 15 Water discharges from pressure relief valve Sanitar...

Page 31: ...t 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 en ...

Page 32: ...of contamination per unit cubic content of heat 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 3 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 Water quality should be to ...

Page 33: ... the following descriptions does NOT mean the guarantee of safety or the conformity with IEC 60335 2 40 Edition 6 0 Other requirements Requirements for marking e g flame symbol and information in the manual shall be satisfied Requirements for constructions e g location of the refrigerant detection sensor shall be satisfied 2 Additional Requirements for using R32 Refrigerant a Flow sensor Outdoor u...

Page 34: ...isku mieszkalnym handlowym i lekko uprzemysłowionym 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 lettindustrimiljøer vakuuttaa täten asiasta yksin vastuussa että alla kuvatut lämmitysjärjestelmän osat jotka on tarkoitettu käytettäviksi asuin toimisto ja kevyen teollisuuden ympäristöissä tímto ...

Page 35: ......

Page 36: ...OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN BH79D852H01 Printed in Japan Please be sure to put the contact address telephone number on this manual before handing it to the customer ...

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