Mitsubishi Electric i-BX-N Technical Manual page 5

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TM_i-BX(-N)_NC05_00_06_20_EN

4.9.2.2

Regulation based on the external temperature up to version NC04.00 relC40 (not on three-phase i-BX-N units). ................... 42

4.9.2.3

Regulation based on the external temperature starting from version NC04.00 relC50 .............................................................. 42

4.9.3

.....

Activation of the pressure safety control ...............................................................................................................................................42

4.10

UNIT PUMP MANAGEMENT ........................................................................................................................................................................43

4.10.1

...

General ..................................................................................................................................................................................................43

4.10.2

...

Pump in continuous operation ...............................................................................................................................................................43

4.10.3

Pump in sniffer mode .............................................................................................................................................................................43

...

4.11

ELECTRIC HEATER AT THE DELIVERY ....................................................................................................................................................44

4.11.1

Replacement heater ..............................................................................................................................................................................44

...

4.11.2

...

Integration heater ..................................................................................................................................................................................44

4.11.3

Antifreeze heater ...................................................................................................................................................................................46

...

4.11.4

...

Defrost heater ........................................................................................................................................................................................46

4.12

ALTERNATIVE HEAT SOURCE (BOILER) .................................................................................................................................................46

4.12.1

...

Replacement heat source......................................................................................................................................................................46

4.12.2

...

Integration heat source ..........................................................................................................................................................................47

4.13

ANTIFREEZE PROTECTION ........................................................................................................................................................................48

4.13.1

...

Exchanger antifreezee...........................................................................................................................................................................48

4.13.2

...

System primary circuit antifreeze ..........................................................................................................................................................49

4.13.3

...

System secondary circuit antifreeze ......................................................................................................................................................49

4.13.4

...

Room temperature antifreeze (only with zones active) .........................................................................................................................50

4.13.5

DHW storage tank antifreeze ................................................................................................................................................................51

...

4.14

DEFROST ......................................................................................................................................................................................................51

4.15

HEAT PUMP INHIBITIONS ...........................................................................................................................................................................53

4.15.1

...

Operation outside envelope...................................................................................................................................................................53

4.15.2

...

External air temperature ........................................................................................................................................................................53

4.15.3

...

External air temperature and water temperature ...................................................................................................................................54

4.16

DEMAND LIMIT .............................................................................................................................................................................................55

4.17

TRAY HEATER .............................................................................................................................................................................................55

4.18

CURRENT OPERATION MODE NOTIFICATION ........................................................................................................................................55

4.19

NIGHT FUNCTION ........................................................................................................................................................................................56

5 ......... MANAGEMENT OF DOMESTIC HOT WATER (DHW) ...................................................................................... 57

5.1

....

MANAGEMENT OF THE DHW 3-WAY VALVE ...........................................................................................................................................57

5.2

DHW STORAGE TANK MANAGEMENT .....................................................................................................................................................58

....

5.2.1

.....

Heat pump only .....................................................................................................................................................................................58

5.2.2

.....

DHW storage tank heater only ..............................................................................................................................................................59

5.2.3

.....

HP + DHW storage heater (P0202=3) or delivery heater (P0202=1 and P0300=1) .............................................................................60

5.3

....

LOW ENERGY TARIFF.................................................................................................................................................................................62

5.4

....

ANTI-LEGIONELLOSIS ................................................................................................................................................................................62

6 ......... HARDWARE ....................................................................................................................................................... 63

7 ......... HARDWARE ARCHITECTURE .......................................................................................................................... 64

7.1

....

ADDRESSING OF THE MODBUS MASTER COMMUNICATION MODULES ............................................................................................64

7.2

PSD1 OR PSD2 DRIVER ADDRESS CONFIGURATION ............................................................................................................................64

....

8 ......... INPUT / OUTPUT CONFIGURATION TABLE .................................................................................................... 65

8.1

....

AIR / WATER INVERTER UNIT WITH DHW MANAGEMENT (WITH 3-WAY VALVE) ..............................................................................65

8.2

I-BX CHILLER ONLY NON-REVERSIBLE INVERTER AIR/WATER UNITS ..............................................................................................67

....

9 ......... ANNEXES ........................................................................................................................................................... 68

9.1

....

PID REGULATION ........................................................................................................................................................................................68

9.1.1

Proportional Action ................................................................................................................................................................................68

.....

9.1.2

.....

Integral Action ........................................................................................................................................................................................68

9.1.3

Derivative Action ....................................................................................................................................................................................69

.....

9.1.4

.....

The combined effect of the three actions ..............................................................................................................................................69

9.2

PSD2 POWER+ INVERTER USE .................................................................................................................................................................70

....

MEHITS S.p.A.

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TECHNICAL MANUAL

Version NC05 - Translation of the Original Instructions

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