DeDietrich AWHP-2 MIT-IN-2 iSystem, MIT-IN-2/E, MIT-IN-2/H Installation And Service Manual

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HPI EVOLUTION

Air / water heat pump

AWHP-2 MIT-IN-2 iSystem

Installation and Service Manual

7616371-001-04

Page 2

Declaration of conformity

The device complies with the standard type described in the EG declaration of conformity. It was manufactured and commissioned in accordance with European directives.

The original declaration of conformity is available from the manufacturer.

C004793-A

Page 3

Contents

1 Introduction ................................................................................................6

1.1 Symbols used .......................................................6

1.1.1 Symbols used in the manual ...................................6

1.1.2 Symbols used on the equipment .............................6

1.2 Abbreviations ........................................................7

1.3 Liabilities ...............................................................7

1.3.1 Manufacturer’s liability .............................................7

1.3.2 Installer’s liability .....................................................7

1.4 Homologations ......................................................8

1.4.1 Certifications ...........................................................8

2 Safety instructions and recommendations ..............................................9

2.1 Safety instructions ...............................................9

2.2 Recommendations ................................................9

3 Technical description ..............................................................................11

3.1 General description ............................................11

3.2 Main parts (Indoor module) ...............................11

3.2.1 MIT-IN-2/H ............................................................11

3.2.2 MIT-IN-2/E .............................................................12

3.3 Operating principle .............................................12

3.3.1 General .................................................................12

3.3.2 Skeleton Diagrams ................................................13

3.3.3 Pressure available .................................................14

3.4 Technical specifications ....................................14

3.4.1 Electricity supply ...................................................14

3.4.2 Heat pump .............................................................15

3.4.3 Sensor characteristics ...........................................16

4 Installation ................................................................................................17

4.1 Regulations governing installation ...................17

4.2 Package list .........................................................17

4.2.1 Standard delivery ..................................................17

4.2.2 Accessories ...........................................................18

4.3 Type plate ............................................................19

4.3.1 Outdoor unit ..........................................................19

4.3.2 Indoor module .......................................................19

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4.4 Installing the outdoor module ...........................20

4.4.1 Positioning of the appliance ..................................20

4.4.2 Main dimensions ...................................................22

4.4.3 Locating the outside module ................................26

4.5 Installing the indoor module ..............................27

4.5.1 Positioning of the appliance ..................................27

4.5.2 Main dimensions ...................................................27

4.5.3 Assembly of the indoor module ............................28

4.6 Installing the outside sensor .............................29

4.6.1 Choice of the location ............................................29

4.6.2 Connecting the outside sensor ..............................29

4.7 Combination with a DHW tank ...........................30

4.8 Installing the refrigerant piping .........................30

4.8.1 Installing the pipes ................................................30

4.8.2 Water tightness test ..............................................35

4.8.3 Evacuation ............................................................35

4.8.4 Opening the valves ...............................................35

4.8.5 Adding refrigerant ..................................................36

4.9 Hydraulic connections .......................................36

4.9.1 Flushing the system ..............................................36

4.9.2 Connection of the heating circuit ...........................37

4.9.3 Hydraulic connection diagrams .............................37

4.10 Filling the heating system ..................................40

4.10.1 Water treatment in the heating circuit ...................40

4.10.2 Filling the system ..................................................42

4.11 Electrical connections ........................................42

4.11.1 Recommendations ................................................42

4.11.2 Recommended cable cross section ......................43

4.11.3 Accessing the connection terminal blocks ............44

4.11.4 Position of the PCBs .............................................46

4.11.5 Location of the fuse ...............................................47

4.11.6 Connecting the outdoor module ............................47

4.11.7 Connecting the communication cable between the

inside and outside modules ...................................47

4.11.8 Description of the terminal block on the inside

module ..................................................................48

4.11.9 Connecting the mains supply to the inside

module ..................................................................49

4.11.10 Connecting the electrical back-up to the inside

module ..................................................................49

4.11.11 Connecting the hydraulic auxilary on the inside

module ..................................................................51

4.11.12 Connection example for a system with hydraulic back-

up ..........................................................................52

4.11.13 Connection example for a system with electrical back-

up ..........................................................................57

4.11.14 Connection example in cooling mode ...................59

4.11.15 Pool connection .....................................................61

4.11.16 Connecting the options .........................................63

4.11.17 Connecting the "energy metering" option ..............64

4.11.18 Connection in cascade ..........................................67

Contents

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4.11.19 Connection example in power cut off EVU ............69

4.12 Electrical principle diagram ...............................71

4.12.1 Legend ..................................................................71

4.12.2 Hydraulic additional heating ..................................73

4.12.3 Electrical back-up ..................................................74

5 Commissioning ........................................................................................75

5.1 Control panel .......................................................75

5.1.1 Description of the keys ..........................................75

5.1.2 Description of the display ......................................76

5.1.3 Access to the various browsing levels ..................79

5.1.4 Browsing in the menus ..........................................80

5.2 Check points before commissioning ................81

5.2.1 Hydraulic connections ...........................................81

5.2.2 Electrical connection .............................................81

5.3 Checklist for commissioning (HP) ....................82

5.4 Putting the appliance into operation ................83

5.5 Checks and adjustments after

commissioning ...................................................84

5.5.1 Displaying the parameters in extended

mode .....................................................................84

5.5.2 Setting the heating pump speed on the heat

pump .....................................................................84

5.5.3 Setting the flow rate threshold ...............................85

5.5.4 Setting the parameters specific to the

installation .............................................................86

5.5.5 Naming the circuits and generators ......................91

5.5.6 Setting the heating curve ......................................92

5.5.7 Setting the speed of the heating pump on the inside

module ..................................................................94

5.6 Reading out measured values ...........................94

5.7 Changing the settings ........................................96

5.7.1 Language selection ...............................................96

5.7.2 Calibrating the sensors .........................................96

5.7.3 Professional settings .............................................98

5.7.4 Configuring the network ......................................109

5.7.5 Return to the factory settings ..............................112

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6 Switching off the appliance ...................................................................113

6.1 Installation shutdown .......................................113

6.2 Turning on the antifreeze function ..................113

7 Checking and maintenance ...................................................................114

7.1 General instructions .........................................114

7.2 Maintenance operations to be performed ......114

7.3 Cleaning the 400 µm filter ................................114

7.4 Customising maintenance ...............................115

7.4.1 Maintenance message ........................................115

7.4.2 Contact details of the professional for After Sales

Support ................................................................116

8 Troubleshooting .....................................................................................118

8.1 Anti-hunting ......................................................118

8.2 Messages ...........................................................118

8.3 Message history ................................................120

8.4 Faults (Code type Lxx or Dxx) .........................121

8.4.1 Deletion of sensors from the memory in the

PCB .....................................................................124

8.5 Failure history ...................................................125

8.6 Parameter and input/output check (mode

tests) ..................................................................125

9 Spare parts ..............................................................................................131

9.1 General ..............................................................131

9.2 Spare parts ........................................................132

9.2.1 Outdoor unit 4 and 6 kW .....................................132

9.2.2 Outdoor unit 8 kW ...............................................135

9.2.3 Outdoor unit 11 and 16 kW .................................138

9.2.4 Outdoor unit 22 and 27 kW .................................143

9.2.5 Indoor module .....................................................147

Contents

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1 Introduction

1.1 Symbols used

1.1.1. Symbols used in the manual

In these instructions, various danger levels are employed to draw the user’s attention to particular information. In so doing, we wish to safeguard the user’s safety, highlight hazards and guarantee correct operation of the appliance.

DANGER

Risk of a dangerous situation causing serious physical injury.

WARNING

Risk of a dangerous situation causing slight physical injury.

CAUTION

Risk of material damage.

Signals important information.

¼Signals a referral to other instructions or other pages in the instructions.

1.1.2. Symbols used on the equipment

Protective earthing

Alternating current

Before installing and commissioning the device, read carefully the instruction manuals provided.

Dispose of the used products in an appropriate recovery and recycling structure.

Caution: danger, live parts. Disconnect the mains power prior to any operations.

1 2

M002628-A

1. Introduction

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1.2 Abbreviations

4 DHW: Domestic hot water 4 PPS: Polypropylene hardly inflammable 4 PCU: Primary Control Unit - PCB contoller for heat pump operation 4 PSU: Parameter Storage Unit - Parameter storage for PCBs

PCU and SU

4 SCU: Secondary Control Unit - DIEMATIC iSystem control panel

PCB

4 SU: Safety Unit - Safety PCB 4 3WV: 3-way valve 4 EVU: Power supply company 4 AWHP: Outdoor module connected by connection cable to the

indoor module

4 MIT-2: Indoor module fitted with a DIEMATIC iSystem control

panel

4 HP: Heat pump 4 EER: Frigorific efficiency ratio 4 COP: Performance coefficient

4 EER: Frigorific efficiency ratio

1.3 Liabilities

1.3.1. Manufacturer’s liability

Our products are manufactured in compliance with the requirements of the various applicable European Directives. They are therefore

delivered with [ marking and all relevant documentation.

In the interest of customers, we are continuously endeavouring to make improvements in product quality. All the specifications stated in this document are therefore subject to change without notice.

Our liability as the manufacturer may not be invoked in the following cases:

4 Failure to abide by the instructions on using the appliance. 4 Faulty or insufficient maintenance of the appliance. 4 Failure to abide by the instructions on installing the appliance.

1.3.2. Installer’s liability

The installer is responsible for the installation and commissioning of the appliance. The installer must respect the following instructions:

4 Read and follow the instructions given in the manuals provided

with the appliance.

AWHP-2 MIT-IN-2 iSystem

1. Introduction

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4 Carry out installation in compliance with the prevailing legislation

and standards.

4 Perform the initial start up and carry out any checks necessary. 4 Explain the installation to the user. 4 If a maintenance is necessary, warn the user of the obligation to

check the appliance and maintain it in good working order.

4 Give all the instruction manuals to the user.

1.4 Homologations

1.4.1. Certifications

This product complies to the requirements to the european directives and following standards:

4 2006/95/EC Low Voltage Directive. Reference Standards:

EN60335-1 / EN60335-2-40.

4 2004/108/EC Electromagnetic Compatibility Directive. Generic

standards: EN1000-6-3 , EN 61000-6-1.

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2 Safety instructions and

recommendations

2.1 Safety instructions

DANGER

If smoke is released or in case of refrigerant leak:

1. Do not use a naked flame, do not smoke, do not operate electrical contacts or switches ( doorbell, light, motor, lift, etc..). Contact between refrigerant and a flame may result in emissions of toxic gases.

2. Open the windows.

3. Trace possible leaks and seal them immediately.

WARNING

Before any work, switch off the mains supply to the appliance.

WARNING

Do not touch the refrigeration connection pipes with your bare hands while the appliance is running. Danger of burns or frost injury.

2.2 Recommendations

WARNING

4 Any intervention on the appliance and heating

equipment must be carried out by a qualified engineer.

4 For a proper operating of the boiler, follow carefully

the instructions.

AWHP-2 MIT-IN-2 iSystem 2. Safety instructions and recommendations

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Keep this document close to the place where the boiler is installed.

CAUTION

4 Use tools and pipe components especially designed

for use with R410A refrigerant.

4 Install the appliance on a solid, stable structure able

to bear its weight.

4 Use phosphorous-deoxidised copper for pipes

without welds and copper alloy to connect the pipes carrying the refrigerant.

4 Use only R410A gas to fill the pipes with refrigerant. 4 Do not install the appliance in a place where it may

be exposed to steam, sulphuric gas or combustion, an atmosphere with a high salt content, or which may be covered by snow.

4 Ensure correct earthing. 4 Store the refrigeration connection pipes away from

dust and humidity (danger of damage to the compressor) and cover both ends until the expansion process is complete.

4 Do not use a load cylinder.

CAUTION

4 Activate the main switch at least 12 hours before the

appliance starts to function. Using the appliance just after it is switched on may seriously damage the internal parts.

4 When switching off the appliance, wait for at least 5

minutes of post-operation before deactivating the main switch. Danger of breakdown or water leak.

CAUTION

In order to limit the risk of being scalded, the installation of a thermostatic mixing valve on the domestic hot water flow piping is compulsory.

Before carrying out any maintenance work requiring the shutdown of the inside module, also cut the power supply to the outside module to prevent any errors in communication.

2. Safety instructions and recommendations AWHP-2 MIT-IN-2 iSystem

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3 Technical description

3.1 General description

The AWHP-2 MIT-IN-2 iSystem heat pump is composed of two elements:

4 The outside unit handles energy production in hot or cold mode. 4 The inside module handles thermal exchange between the R410A

fluid and the hydraulic circuit.

The two units are connected by means of refrigeration and electrical connections.

The system offers the following advantages:

4 The heating circuit is housed in the insulated volume within the

home. There is no danger of the pipes freezing.

4 Thanks to the DC inverter system, the heat pump modulates its

output to adapt to the needs of the home.

4 The control panel uses the outside temperature sensor to adjust

the temperature of the heating circuit according to the outside temperature.

3.2 Main parts (Indoor module)

3.2.1. MIT-IN-2/H

Automatic air bleed

tank

High energy efficient heating pump

Plate heat exchanger

electrical support

Flowmeter

Table cover unit

Control panel

Safety valve

Pressure gauge

Expansion vessel

M002483-A

AWHP-2 MIT-IN-2 iSystem 3. Technical description

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3.2.2. MIT-IN-2/E

Automatic air bleed

tank

High energy efficient heating pump

Plate heat exchanger

electrical support

Flowmeter

Table cover unit

Control panel

Safety valve

Pressure gauge

Expansion vessel

Automatic air bleed

Electric heater

3.3 Operating principle

3.3.1. General

The outside module produces heat or cold (in reversible versions) and transmits it to the heating circuit via the refrigerant in the plate exchanger. The outside module is capable of operating at outside temperatures down to -20°C (-15°C in the case of a 4 kW or 6 kW heat pump).

The DIEMATIC iSystem control panel is used to programme and regulate the heat pump according to the outside temperature.

By activating the pumps and, where necessary, the mixer valve, the regulator handles the regulation of the heating.

Connection of a CDR4 simplified remote control or a CDI4 interactive remote control enables the auto-adaptivity of the gradient and the parallel offset of the heating curve.

The antifreeze function on the installation is active whatever the operating mode. It is triggered as soon as the outdoor temperature reaches the limiting value preset to +3°C.

The installation of a buffer tank is not necessary if the volume of water in the circuit is higher than or equal to 3 litres/kW: Therefore, for a heat pump with an output of less than 11 kW, with a water volume of less than 33 litres, the installation of a buffer tank is necessary.

M002484-A

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3.3.2. Skeleton Diagrams

MIT-IN-2/H

Inside module with hydraulic back-up

tank

Filter

Flowmeter

Radiator

Plate heat exchanger

Outdoor unit

Boiler

MIT-IN-2/E

Inside module with electrical back-up

tank

Electrical back-up

M002487-E

3 4

M002488-E

5 8

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Radiator

Plate heat exchanger

Filter

Flowmeter

Outdoor unit

3.3.3. Pressure available

Pressure available (mbar)

Water flow rate (m3/h)

1 - 5

Setting the pump

¼To set the speed of the heating pump correctly, refer to chapter: "Setting the speed of the heating pump on the inside module", page 94.

3.4 Technical specifications

3.4.1. Electricity supply

230 V AC (+/- 10%) - 50 Hz

400 V AC (+ 6%, - 10%) - 50 Hz (depending on the model)

M002627-C

100

200

300

400

500

600

700

800

0 0,5 1 1,5 2 2,5 3

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3.4.2. Heat pump

Conditions of use:

4 Limit operating temperatures in Hot mode:

- Water: +18 °C / +60 °C

- Outside air:

-15 °C / +35 °C (4, 6 kW)

-20 °C / +35 °C (8, 11, 16, 22, 27 kW)

4 Limit operating temperatures in Cooling mode:

- Water: +7 °C / +25 °C

- Outside air: +15 °C / +40 °C (At less than 18°C, it is necessary

to use the HK24 insulation kit option)

4 Maximum operating pressure: 3 bar

Performances in hot mode with outside air temperature at +7°C and outlet water temperature at +35°C (in accordance with EN 14511–2)

AWHP

4 MR 6 MR -2 8 MR-2 11 MR-2 11 TR-2 16 MR-2 16 TR-2 22 TR 27 TR

Calorific output - A7/W35 kW 3.72 5.87 8.26 10.56 10.56 14.19 14.19 19.4 24.4 COP hot - A7/W35

4.30 4.18 4.27 4.30 4.30 4.22 4.22 3.94 3.90 Absorbed electrical power - A7/W35 kWe 0.87 1.41 1.93 2.46 2.46 3.36 3.36 4.92 6.25 Nominal amperage - A7/W35 A 4.11 6.57 8.99 11.81 11.81 16.17 16.17 7.75 9.86

Performances in hot mode with outside air temperature at +2°C and outlet water temperature at +35°C (in accordance with EN 14511–2)

AWHP

4 MR 6 MR -2 8 MR-2 11 MR-2 11 TR-2 16 MR-2 16 TR-2 22 TR 27 TR

Calorific output - A2/W35 kW 3.76 3.87 5.93 10.19 10.19 11.38 11.38 12.10 14.70 COP hot - A2/W35

3.32 3.26 3.20 3.20 3.20 3.27 3.27 3.10 3.10 Absorbed electrical power - A2/W35 kWe 1.13 1.19 1.85 3.19 3.19 3.48 3.48 3.91 4.70 Nominal amperage - A2/W35 A 6.1 6.1 8.2 10.7 6.2 14.6 8.4 9.7 11.8

Performances in cold mode with outside air temperature at +35°C and outlet water temperature at +18°C (in accordance with EN 14511–2)

AWHP

4 MR 6 MR -2 8 MR-2 11 MR-2 11 TR-2 16 MR-2 16 TR-2 22 TR 27 TR

Cooling output kW 3.84 4.69 7.90 11.16 11.16 14.46 14.46 17.65 22.2 EER

3.80 3.80 3.99 4.68 4.68 4.43 4.43 3.8 3.8

Absorbed electrical power kWe 0.72 1.15 2.0 2.35 2.35 3.65 3.65 4.65 5.84

AWHP-2 MIT-IN-2 iSystem 3. Technical description

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General values

AWHP 4 MR 6 MR -2 8 MR-2 11 MR-2 11 TR-2 16 MR-2 16 TR-2 22 TR 27 TR

Sound pressure

(1)

dB(A) 41.7 41.7 43.2 43.4 43.4 47.4 47.4 51.8 53

Nominal water flow (ΔT = 5K)

m3/h

1.04 1.04 1.47 1.88 1.88 2.67 2.67 3.8 4.6

Manometric height available at nominal flow rate

mbar 618 618 493 393 393 213 213 - -

Nominal air flow rate

m3/h

2100 2100 3000 6000 6000 6000 6000 8400 8400

Power voltage of the outdoor unit

V 230 V~ 230 V~ 230 V~ 230 V~ 400 V3~ 230 V~ 400 V3~ 400 V3~ 400 V3~

Sound output

(2)

dB(A) 63.7 63.7 65.2 65.4 65.4 69.4 69.4 73.8 75

R410A refrigerant kg 2.1 2.1 3.2 4.6 4.6 4.6 4.6 7.1 7.7 refrigerant piping

connection (LiquidGas)

inch 1/4-1/2 1/4-1/2 3/8-5/8 3/8-5/8 3/8-5/8 3/8-5/8 3/8-5/8 3/8-3/4 or

3/8-1

1/2-3/4 or 1/2-1

Max pre-loaded length

m 10 10 10 10 10 10 10 30 30

Weight (empty) Outside unit

kg 42 42 75 118 118 130 130 135 141

(1) 5 m from the appliance, free field. (2) Test conducted in accordance with the standard NF EN 12102

3.4.3. Sensor characteristics

Outside sensor

Temperature in °C -20 -16 -12 -8 -4 0 4 8 12 16 20 24 Resistance in Ω 2392 2088 1811 1562 1342 1149 984 842 720 616 528 454

DHW sensor Flow sensor

Temperature in °C 0 10 20 25 30 40 50 60 70 80 90 Resistance in Ω 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941

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4 Installation

4.1 Regulations governing installation

CAUTION

Installation of the appliance must be done by a qualified engineer in accordance with prevailing local and national regulations.

4.2 Package list

4.2.1. Standard delivery

The delivery includes:

4 An outside module (See below) 4 An inside hydraulic module (See below) 4 An outside sensor 4 Refrigerant adapter fitting 4, 6 and 22 kW 4 A mounting rail (screwed to the pallet) 4 The installation and maintenance instructions 4 The user instructions

Combinations possible:

Models

Outdoor unit Indoor module

Description Pack no. Description Pack no.

HPI 4 MR-2

AWHP 4 MR EH336

MIT-IN-2/H 4 - 8 ISYS MIT-IN-2/E 4 - 8 ISYS

EH386 EH389

HPI 6 MR-2

AWHP 6 MR-2 EH380

MIT-IN-2/H 4 - 8 ISYS MIT-IN-2/E 4 - 8 ISYS

EH386 EH389

HPI 8 MR-2

AWHP 8 MR-2 EH381

MIT-IN-2/H 4 - 8 ISYS MIT-IN-2/E 4 - 8 ISYS

EH386 EH389

HPI 11 MR-2

AWHP 11 MR-2 EH382

MIT-IN-2/H 11 - 16 ISYS MIT-IN-2/E 11 - 16 ISYS

EH387 EH390

HPI 11 TR-2

AWHP 11 TR-2 EH383

MIT-IN-2/H 11 - 16 ISYS MIT-IN-2/E 11 - 16 ISYS

EH387 EH390

HPI 16 MR-2

AWHP 16 MR-2 EH384

MIT-IN-2/H 11 - 16 ISYS MIT-IN-2/E 11 - 16 ISYS

EH387 EH390

HPI 16 TR-2

AWHP 16 TR-2 EH385

MIT-IN-2/H 11 - 16 ISYS MIT-IN-2/E 11 - 16 ISYS

EH387 EH390

HPI 22 TR-2

AWHP 22 TR EH225

MIT-IN-2/H 22 - 27 ISYS MIT-IN-2/E 22 - 27 ISYS

EH388 EH391

HPI 27 TR-2

AWHP 27 TR EH226

MIT-IN-2/H 22 - 27 ISYS MIT-IN-2/E 22 - 27 ISYS

EH388 EH391

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4.2.2. Accessories

Various options are available depending on the configuration of the installation:

Heat pump options

Description package

160 L storage tank EH 60 80 L storage tank EH 85 Wall-hanging kit for outside units 6 - 10 kW EH 95 Condensate receiver tank for wall bracket EH 111 Ground mounting supports for outside units EH 112 Electrical resistor for the condensate receiver tank EH 113 Frigorific ducts with insulation (5/8" - 3/8"); Length: 5 m EH 114 Frigorific ducts with insulation (5/8" - 3/8"); Length: 10 m EH 115 Frigorific ducts with insulation (5/8" - 3/8"); Length: 20 m EH 116 Insulated copper pipe (1/2" - 1/4") 10 m EH 142 1/4" 1/2" - 3/8" 5/8" adapter fittings EH 146 Heat pump hydraulic connection kit - DHW storage tank EH 149 Wall-hanging kit for outside units 11 - 27 kW EH 250 3-way valve module with standard pump EA 63 3-way valve module with electronic pump EA 67 Collector for 2/3 circuits EA140 Wall console EA141 Wall console for hydraulic module EA142 Direct circuit with pump HEE EA143 V3V circuit with HEE pump EA144 Wiring kit for connecting a safety thermostat for underfloor

heating

HA 249

3-way valve kit HK 21 2-circuit kit HK 22 Reversal valve kit HK 23 Insulation kit cold mode HK 24 3-way valve insulation kit HK 25

Control system options

Description

package

BUS connection cable (length 12 m) AD134 voice remote monitoring module AD152 Outlet sensor V3V AD199 DHW sensor AD212 Optional PCB for 3-way valve AD249 System sensor AD250 Outside radio-controlled temperature sensor AD251 Radio module AD252 CDR iSystem radio remote control AD284

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Description package

Interactive radio remote control with LCD display CD12/CD14 AD285 Radio remote control AD253 Interactive remote control AD254 A simplified remote control with room sensor FM52 Condensation detector kit HK 27 Energy metering option HK 29

4.3 Type plate

4.3.1. Outdoor unit

The type plate must be accessible at all times. The type plate identifies the product and provides the following information:

4 Appliance type 4 Manufacturing date (Year - Week) 4 Serial number. 4 Nature of the power supply voltages

4.3.2. Indoor module

This data plate is affixed to the inside side panel of the appliance in the factory.

When installation has been completed, affix the data plate provided in the instructions bag to the casing of the appliance in a position where it can be seen.

The type plate must be accessible at all times. The type plate identifies the product and provides the following information:

4 Appliance type 4 Manufacturing date (Year - Week) 4 Serial number. 4 Nature of the power supply voltages

MW-M001832-2

M002624-A

Auf ERDGAS H eingestellt für DE: Erdgas E Réglé au gaz naturel H Geregeld voor aardgas H Preset for natural gas H G20 - 20 mbar

8366-4038

1 2

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4.4 Installing the outdoor module

4.4.1. Positioning of the appliance

Ensure that the outside module is optimally positioned in relation to neighbours as it is a source of noise.

CAUTION

4 There must be no obstacles hindering the free

circulation of air around the outdoor module (intake and output).

4 No not locate the outside unit close to where people

sleep.

4 Do not locate the unit opposite a wall with windows. 4 Avoid placing it close to a terrace, etc..

Choose a location away from prevailing winds.

C000373-B

Brrrrr....

In some cases, additional precautions are necessary owing to the fact, for example, of too short a distance between you and your neighbours. When installing a noise reduction screen, respect the following recommendations:

4 Locate the noise reduction screen as close as possible to the noise

source whilst allowing for the free circulation of air in the exchanger on the outside unit and maintenance work.

Place the outside unit on a base (concrete base frame, sill, concrete blocks, etc.) with no rigid connection with the building served in order to prevent any transmission of vibrations. Ensure

sufficient above ground elevation (100 to 150 mm) to keep it above water. For regions where heavy snowfalls occur, raise this above ground protection by at least 200 mm compared with the average depth of the covering of snow.

M001448-A

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CAUTION

4 If the outside temperatures become negative, take

the necessary precautions to prevent the risk of freezing in the evacuation pipes.

4 Prevent any risk of the condensates freezing in an

area through which they flow.

4 The heating cord keeps the condensates from

freezing: See EH113 leaflet.

Distances to be observed

WARNING

To ensure that the heat pump functions correctly, respect the minimum and maximum connection lengths between the heat pump and the indoor module.

Outdoor unit

Indoor module

Minimum length 5 m Maximum length: 40 m for 4, 6, 8 kW, 75 m for 11, 16 kW, 20 m for 22, 27 kW.

Max height difference 10 m For 4, 6, 8 kW Max height difference 30 m For 11, 16, 22, 27 kW

Max number of elbows: 15 Respect the minimum curve radii of 100 to 150 mm

¼See chapter: "Installing the pipes", page 30.

M00 1439-A

MW-M001450-2

1000

ax. 500

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Dimension (mm) 4, 6, 8 kW 11, 16, 22, 27 kW

100 150

500 1000

200 300

1000 1500

300 500

150 250

100 200

4.4.2. Main dimensions

AWHP 4 and 6 MR-2

1/4" flare refrigerant fitting

1/2" flare refrigerant gas fitting

150 500

800

887

300

183

155

365

600

MW-M002199-2

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AWHP 8 MR-2

3/8" flare refrigerant fitting

5/8" flare refrigerant gas fitting

943

950

53 28

417

175

330

370

443

447

175

65 42

(1)

(2)

MW-M001442-2

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AWHP 11 and 16 MR/TR-2

3/8" flare refrigerant fitting

5/8" flare refrigerant gas fitting

1350

950

53 28

417

175 600

330

370

443

447

175

65 42

(1)

(2)

MW-M001443-2

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AWHP 22 and 27 TR

450 mm : 22 kW

424 mm : 27 kW

3/8" flare refrigerant fitting (22 kW) 1/2" flare refrigerant fitting (27 kW)

3/4" flare refrigerant gas fitting + adapter 1" (to be brazed)

MW-M002629-1

1338

1050

342

225

330

370

417

600

225

(1)

(2)

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4.4.3. Locating the outside module

CAUTION

Keep the appliance vertical during transport.

Installation on the ground

Concrete base frame

Condensates run-off

Install a run-off channel with pebble bed

4 Use the ground installation base kit available as optional

equipment: Package EH112.

4 Install the appliance on a solid, stable structure able to bear its

weight.

Condensates discharge

CAUTION

If the outside temperatures become negative, take the necessary precautions to prevent the risk of freezing in the evacuation pipes. Use package EH113 (Electrical resistor for the condensate receiver tank). Prevent any risk of the condensates freezing in an area through which they flow.

>45°

M001456-A

200

M001452-A

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4.5 Installing the indoor module

4.5.1. Positioning of the appliance

CAUTION

4 Install the appliance in frost-free premises. 4 Fix the appliance to a solid wall capable of bearing

the weight of the appliance when full of water and fully equipped.

4.5.2. Main dimensions

3-way valve circuit return (Option) - G1"

3-way valve circuit outlet (Option) - G1"

Return direct circuit - G1"

Direct circuit flow - G1"

Back-up boiler inlet - G1" Only for hydraulic back-up - Version H

Return to the back-up boiler - G1" Only for hydraulic back-up - Version H

Gas line 5/8" flare connection: 4, 6, 8, 11, 16 kW 3/4" flare connection: 22, 27 kW (Use 1" braze-on adapter)

Liquid line 3/8" flare connection: 4, 6, 8, 11, 16 kW 1/2" flare connection: 22, 27 kW

Exterior cylindrical threading, sealed by sheet gasket

T001898-C

600

min.1000

500

min. 250

900

M002497-B

122

192

262

332

402

472

542

49 48

900

600

498

1234567

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4.5.3. Assembly of the indoor module

Fitting the mounting rail

1. Drill 2 holes with a Ø of 10 mm.

Additional holes are provided in case one or other of the standard locating holes prevents the correct location of the plugs.

2. Put the plugs in place.

3. Fix the mounting rail to the wall using the hexagonal head screws provided for this purpose. Set the level using a spirit level.

Fixing to the wall

CAUTION

Weight (empty): 74 kg Shipping weight: 112 kg

1. Present the indoor module above the mounting rail until it rests firmly against it.

2. Gently lower the indoor module.

M002380-B

458

558

Ø10

M002381-C

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4.6 Installing the outside sensor

4.6.1. Choice of the location

It is important to select a place that allows the sensor to measure the outside conditions correctly and effectively.

Advised positions:

4 on one face of the area to be heated, on the north if possible 4 half way up the wall in the room to be heated 4 under the influence of meteorological variations 4 protected from direct sunlight 4 easy to access

Recommended position

Possible position

Inhabited height controlled by the sensor

Inhabited area controlled by the sensor

Positions to be avoided:

4 masked by a building element (balcony, roof, etc.) 4 close to a disruptive heat source (sun, chimney, ventilation grid,

etc.)

4.6.2. Connecting the outside sensor

Mount the sensor using the screws and dowels provided.

8800N001-C

8800N002-C

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Inserts

Ø4 wood screw

¼For the connection of the outside temperature sensor, refer to the chapter "Electrical Connections".

4.7 Combination with a DHW tank

In order to optimise domestic hot water production, the recommended combinations of heat pumps and DHW tanks are:.

4 MR 6 MR-2 8 MR-2 11 MR-TR 2 16 MR-TR 2 22 TR 27 TR

BLC150 X X X X BLC200

X X X X

BLC300

X X X X

WARNING

An incorrect DHW tank/heat pump combination may adversely affect user comfort.

An incorrect combination may lead to overconsumption subsequent to the repeated tripping of the back-ups.

4.8 Installing the refrigerant piping

4.8.1. Installing the pipes

DANGER

Only a qualified professional may carry out the installation in conformity with in force legislation and standards.

4 Install the frigorific connection pipes between the inside and

outside modules.

4 Respect the minimum curve radii of 100 to 150 mm.

4 Only for 22 - 27 TR models:

4 Respect the minimum and maximum lengths. ¼See chapter:

"Positioning of the appliance", page 20. If the frigorific connection between the outside module and the inside module is less than 5 m, the following disruptions may occur:

8800N003-C

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- Functional disruptions caused by a fluid overload

- Noise pollution caused by the circulation of the refrigerant

In this case, fit a refrigerant connection of at least 5 m by making 1 or 2 horizontal loops, as necessary, in order to limit such annoyance and oil traps. If the refrigeration connection pipes are more than 10 metres long, refrigerant R410A must be added.

Add refrigerant via the refrigerant shut off valve using a safety loader. ¼See chapter: "Adding refrigerant", page 36.

4 Cut the pipes with a pipe cutter and deburr them, point the opening

in the pipe downwards to prevent the introduction of particles.

4 Prevent oil traps.

WARNING

If the pipes are not to be connected immediately, they should be plugged to prevent the infiltration of humidity.

Use a flat spanner to hold the hoses during the various operations.

1. Partially unscrew the 5/8" or 3/4" "gas" nut, depending on the model.

2. A release noise should be heard, which is proof that the exchanger is watertight.

MW-2000076-1

M002395-B

M002396-B

Pfffff...

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3. Unscrew the screws.

CAUTION

Keep the frigorific connection in place on the MIT-IN-2 with a spanner so as not to twist the internal pipe.

4. Remove and discard the gates.

Only for 4 - 6 MR-2 models

Fit the 1/4" to 3/8" and 1/2" to 5/8" adapter fittings (Package EH146). Use the copper gaskets. Use a torque wrench.

See "torque" table (step 9).

Only for the 22 TR model

Fit a 3/8" to 1/2" adapter to the liquid connection. Use the copper gaskets. Use a torque wrench.

See "torque" table (step 9).

CAUTION

Keep the frigorific connection in place on the MIT-IN-2 with a spanner so as not to twist the internal pipe.

Models 8 to 16 MR/TR-2 and 27 TR

Slip the nuts onto the pipes.

Models 4 and 6 MR-2and 22 TR

Slip the nuts provided with the adapters onto the pipes.

7. Bead the pipes.

M002397-C

M002498-A

M002398-D

4MR - 6MR-2

M002399-D

22TR

M002207-B

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Models 22 TR and 27 TR

If the length of the piping is less than 20 m, it is possible to use annealed pipe for the gas pipe with a diameter of 3/4 without using braze-on adapters. The output in cooling mode may be reduced to 20% depending on the length used. Using the 1" braze-on gas pipe: Braze the 1" gas pipe on to the braze-on adapter, circulating dehydrated nitrogen inside the pipe to prevent oxidation.

CAUTION

Do not overheat the pipe, protect the insulation and the inside module when brazing.

Use hard solder.

Using the 3/4" crown gas pipe: Slip the nut onto the pipe. Bead the pipes.

Only for 4 - 6 MR-2 models

Only for 8 - 11 - 16 MR-2 models

Only for 22 TR models

Only for 27 TR models

Apply refrigerant oil to the beaded parts to facilitate tightening and improve watertightness.Apply refrigerant oil to the beaded parts to facilitate tightening and improve watertightness. Connect the pipes and tighten the nuts with a dynamometric spanner.

CAUTION

Keep the frigorific connection in place on the MIT-IN-2 with a spanner so as not to twist the internal pipe.

External diameter of the pipe (mm-inch)

External diameter of the cone connection (mm)

Torque load (Nm)

6.35 - 1/4 17 14 - 18

9.52 - 3/8 22 34 - 42

12.7 - 1/2 26 49 - 61

15.88 - 5/8 29 69 - 82

19.05 - 3/4

100 - 120

10.Remove the protective side panels from the outdoor module.

M002400-B

22TR - 27TR

M002401-G

A B

C D

M002402-A

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11.Unscrew the nuts on the shut off valves.

12.Slip the nuts onto the pipes.

13.Bead the pipes. Models 22 and 27 TR (Braze-on 1" fitting): Braze the connecting pipe to the local pipe without oxygen. Braze in a nitrogen atmosphere.

14.Apply refrigerant oil to the beaded parts to facilitate tightening and improve watertightness. Connect the pipes and tighten the nuts with a dynamometric spanner. A Do not use a spanner on this part of the valve, danger of the refrigerant leaking.

B Recommended position of the spanners for tightening the nut.

CAUTION

Tighten the nuts using a dynamometric spanner.

External diameter of the pipe (mm-inch)

External diameter of the cone connection (mm)

Torque load (Nm)

6.35 - 1/4 17 14 - 18

9.52 - 3/8 22 34 - 42

12.7 - 1/2 26 49 - 61

15.88 - 5/8 29 69 - 82

19.05 - 3/4

100 - 120

M002403-A

M002405-A

22TR - 27TR

M002404-A

M002406-A

22TR - 27TR

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4.8.2. Water tightness test

1. Check that the shut off valves A and B are closed.

2. Connect the pressure gauge valve and the nitrogen cylinder to the operating connection C on the shut off valve A.

3. Progressively pressurise the refrigerant connection pipes and the indoor module in steps of 5 bar until you reach 35 bar.

4. Check the watertightness of the connections with a "leak detector" spray. If leaks occur, redo and recheck tightness.

5. Release the pressure and release the nitrogen.

4.8.3. Evacuation

1. Check that the shut off valves A and B are closed.

2. Connect the vacuum gauge and the vaccuum pump to the operating connection C and the shut off valve A.

3. Produce a vacuum in the indoor module and the refrigerant connection pipes.

4. Check the pressure according to the recommendations table below:

Outside temperature (°C)

10 0 - 10 Pressure to be reached (Pa) 1000 600 250 200 Draw-off evacuation time after reaching the

pressure (h)

1 1 2 3

5. Close the valve between the vacuum gauge/vaccuum pump and the shut off valve A.

6. After shutting off the vaccuum pump, immediately open the valves.

4.8.4. Opening the valves

1. Remove the cap D on the refrigerant off valve A.

2. Open the valve with a hexagonal spanner by turning anticlockwise until it stops.

3. Put the cap back in place.

4. Remove the cap D on the refrigerant gas shut off valve B.

5. Open the valve with a pair of pliers, turning it anticlockwise by a quarter turn.

6. Put the cap back in place.

7. Disconnect the vacuum gauge and the vaccuum pump. Put the cap back in place.

M002297-A

35 bar

M001470-B

M002297-A

M002499-B

M002295-B

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8. Tighten the caps with a dynamometric spanner with a torque load of 20 to 25 N·m.

9. Check the watertightness of the connections using a leak detector.

4.8.5. Adding refrigerant

If the refrigeration connection pipes are more than 10 metres long, refrigerant R410A must be added. See table below.

Add refrigerant via the refrigerant shut off valve using a safety loader.

Model (Outdoor unit)

Quantity of refrigerant to be added

11 to 20m21 to 30m31 to 40m41 to

50 m

51 to 60 m

61 to 75 m

4 - 6 kW 0.2 kg 0.4 kg 0.6 kg / / / 8 kW 0.2 kg 0.4 kg 1.0 kg / / / 11-16 kW 0.2 kg 0.4 kg 1.0 kg 1.6 kg 2.2 kg 2.8 kg 22 kW 0.9 kg 1.8 kg 1.8 kg 1.8 kg 2.7 kg 3.6 kg 27 kw 1.2 kg 2.4 kg 2.4 kg 2.4 kg 3.6 kg 4.8 kg

4.9 Hydraulic connections

¼See chapter: "Main dimensions", page 27

4.9.1. Flushing the system

Installation must be carried out in accordance with the prevailing regulations, the codes of practice and the recommendations in these instructions.

Fitting the appliance to new installations

4 Clean the installation with a universal cleaner to eliminate debris

from the system (copper, hemp, flux).

4 Thoroughly flush the installation until the water runs clear and

shows no impurities.

Fitting the appliance to existing installations

4 Remove sludge from the installation. 4 Flush the installation. 4 Clean the installation with a universal cleaner to eliminate debris

from the system (copper, hemp, flux).

4 Thoroughly flush the installation until the water runs clear and

shows no impurities.

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4 Prior to connection, rinse the domestic water inlet pipes so as

not to introduce metal or other particles into the DHW coil.

4.9.2. Connection of the heating circuit

1. Connect the heating water return pipe to the heating return connection.

: Screw-on connection ∅ 1"

2. Connect the heating water outlet pipe to the heating flow connection.

{

: Screw-on connection ∅ 1"

4 The device is factory-fitted with a safety valve.

CAUTION

4 The heating pipe must be mounted in accordance

with prevailing provisions.

4.9.3. Hydraulic connection diagrams

CAUTION

The maximum volume scheduled for the installation is 215 litres. If this volume is exceeded in relation to the internal expansion vessel, add an external expansion vessel.

M002537-A

1 2

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Example of connecting a system with MIT-IN-2/H

Outdoor unit

Inside module with hydraulic back-up

boiler back-up

DHW tank

3-bar safety valve

Pressure gauge

Automatic air vent

Isolating valve

11a

Automatically regulated electronic pump for direct heating circuit

11b

Pump for heating circuit with mixing valve

Closed expansion vessel

Drain cock

Filling the heating circuit

Exterior temperature sensor

Boiler temperature sensor

Mixing valve outlet temperature sensor

DHW calorifier exchanger primary inlet

DHW calorifier heat exchanger primary outlet

DHW load pump

Non-return valve

M003026-C

230V

50Hz

BUS

230V

50Hz

EA63

11b

°C

EA61

115

EA59

°C

11a

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Domestic cold water inlet

Pressure reducer if supply pressure exceeds 80 % of the safety valve pressure setting

Calibrated and sealed safety unit

Domestic hot water temperature sensor

Primary pump

Safety thermostat

Disconnector

Thermostat valve

Differential valve

Domestic hot water circulation loop return

Domestic hot water outlet

Direct heating circuit

Heating circuit with mixing valve

Heat transfer fluid container

115

Thermostatic distribution valve for each zone

Example of connecting a system with MIT-IN-2/E

Outdoor unit

Inside module with electrical back-up

DHW tank

3-bar safety valve

M003027-B

230V

50Hz

230V

50Hz

BUS

115

A/B

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Pressure gauge

Automatic air vent

Isolating valve

11a

Automatically regulated electronic pump for direct heating circuit

11b

Pump for heating circuit with mixing valve

Closed expansion vessel

Drain cock

Filling the heating circuit

Exterior temperature sensor

Boiler temperature sensor

Mixing valve outlet temperature sensor

DHW calorifier exchanger primary inlet

DHW calorifier heat exchanger primary outlet

DHW load pump

Non-return valve

Domestic cold water inlet

Pressure reducer if supply pressure exceeds 80 % of the safety valve pressure setting

Calibrated and sealed safety unit

Domestic hot water temperature sensor

Primary pump

Safety thermostat

Disconnector

Thermostat valve

Differential valve

Domestic hot water circulation loop return

Domestic hot water outlet

Direct heating circuit

Heating circuit with mixing valve

Heat transfer fluid container

115

Thermostatic distribution valve for each zone

4.10 Filling the heating system

4.10.1. Water treatment in the heating circuit

In a number of cases, the heat pump and the central heating system can be filled with normal tap water and no water treatment is necessary.

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WARNING

4 Do not add chemical products to the central heating

water without first consulting a water treatment professional. For example: antifreeze, water softeners, products to increase or reduce the pH value, chemical additives and/or inhibitors. Chemical products may cause malfunctions on the heat pump and damage the heat exchanger.

4 Do not use hydrochloric acid-based cleaning or

descaling products.

CAUTION

4 Check the compatibility of the product with the

materials used in the installation.

4 Check the compatibility of the product with stainless

steel and copper.

4 Respect the manufacturer’s instructions (use, dose,

etc.) to obviate any hazards (corporal, material, environmental).

4 An uncleaned installation or an installation using

water of unsuitable quality may bring about the cancellation of the warranty.

4 Flush the central heating installation with at least 3x

the volume of the central heating installation.

4 Flush the DHW pipes with at least 20 times the volume

of the pipes.

For an optimum functioning of the boiler, the water of the installation must comply with following characteristics:

Output ≤ 70 kW

Acidity (pH)

7.5 - 9 Conductivity at 25°C µS/cm 10 to 500 Chlorides mg/l < 50 Other components mg/l < 1 Hardness of the water of the installation °f 7- 15

°dH 4- 8.5

If a water treatment is necessary, De Dietrich Thermique recommends the following manufacturers:

4 Cillit 4 Climalife 4 Fernox 4 Permo 4 Sentinel

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4.10.2. Filling the system

CAUTION

Do not use glycol. The heat pump components are not designed to be used with glycol. The use of glycol in the heating circuit invalidates the warranty.

4 Fill the installation until a pressure of 1.5 to 2 bars is reached.

Water pressure display: See chapter: ¼ "Reading out measured values", page 94.

4 Check for any water leaks. 4 Completely vent any air in the inside module and the installation

for optimum running.

4.11 Electrical connections

4.11.1. Recommendations

WARNING

4 Only qualified professionals may carry out electrical

connections, always with the power off.

4 Earth the appliance before making any electrical

connections.

Make the electrical connections of the appliance according to:

4 The instructions of the prevailing standards, 4 The instructions on the circuit diagrams provided with the

appliance,

4 The manufacturer’s instructions.

The earthing shall comply with local standards.

CAUTION

4 Separate the sensor cables from the 230/400 V

circuit cables.

4 The installation must be fitted with a circuit breaker

disconnecting switch.

4 Three phase models must always be fitted with

neutral.

Power the appliance via a circuit which includes a remote omnipolar switch with a gap of more than 3 mm.

4 Single phase models: 230 V AC (+6%/-10%) 50 Hz 4 Three phase models: 400 V AC (+6%/-10%) 50 Hz

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When making electrical connections to the mains, respect the following polarities:

4 Brown wire: Live 4 Blue wire: Neutral 4 Green/yellow wire: Earth

WARNING

Secure the cable with the cable clamp provided. Be careful that you do not invert the wires.

4.11.2. Recommended cable cross section

The electrical characteristics of the mains power supply available must correspond to the values given on the rating plate.

The cable will be carefully chosen according to the following information:

4 Maximum intensity of the outdoor module. See table below. 4 Distance of the appliance from the original power supply. 4 Upstream protection. 4 Neutral operating conditions.

Appliance

AWHP MIT-IN-2 4 MR 6 MR-2 8 MR-2 11 MR-2 11 TR-2 16 MR-2 16 TR-2 22 TR 27 TR

Outdoor unit Absorbed

electrical power

kW 1.50 1.50 2.10 2.59 2.59 4.03 4.03 5.6 6.9

Nominal amperage

A 6.8 6.8 9.34 11.2 3.98 17.7 5.99 13.9 17.2

Maximal amperage

A 13 13 19 28 13 29 13 19 21

Type

(1)

1 ~ 1 ~ 1 ~ 1 ~ 3 ~ 1 ~ 3 ~ 3 ~ 3 ~

Power supply

S-C

(2)

3 x 2.5 3 x 2.5 3 x 4 3 x 6 5 x 2.5 3 x 10 5 x 2.5 5 x 4 5 x 6

Curve D DJ

(3)

16 A 16 A 25 A 32 A 16 A 40 A 16 A 25 A 32 A

Indoor module Power supply

S-C

(2)

3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5

Curve C DJ

(3)

10 A 10 A 10 A 10 A 10 A 10 A 10 A 10 A 10 A

Cable BUS

(4)

S-C

(2)

3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5 3 x 1.5

(1) 1 ~ : Single phase, 3 ~ : Three-phase (2) Cable cross section (mm²) (3) Circuit breaker (4) Connection cable between outdoor and indoor module

Connecting the electrical back-up

Type

S-C

(1)

Curve C DJ

(2)

Single phase 3 x 6 32 A Three-phase 5 x 4 25 A

(1) Cable cross section (mm²) (2) Circuit breaker

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4.11.3. Accessing the connection terminal blocks

Outdoor unit

Only for 4, 6 kW models

1. Unscrew the holding screws.

2. Remove the protection cap.

Only for 8, 11, 16, 22, 27 kw models

1. Unscrew the holding screws.

2. Remove the protection cap.

CAUTION

Secure the cables with cable clamps to obviate any contact with the centre of the protective cover or the gas valve.

Indoor module

To access the connection terminal blocks, proceed as follows:

1. Unscrew the 2 screws under the front panel by a quarter turn.

MW-2000052-1

MW-2000055-1

M002382-B

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2. Remove the front panel.

3. Open the holding clips located on the sides.

4. Tilt the control panel forwards.

5. Lift the clip located in front of the control panel.

6. Lift the control panel cover.

7. Unclip the PCB cover.

M002383-B

M002491-A

M002492-A

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4.11.4. Position of the PCBs

On/off

OT BL S ECS

BUS

A B 0VS EXT

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

TS + C AUXC

SCU

PCU

M002490-B

PCU

SCU

Do not connect anything to the terminal block.

Optional PCB (Package AD249)

The BL inlet must always be connected to a dry contact (potential-free).

Do not connect anything to the terminal block.

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4.11.5. Location of the fuse

F1 6,3 AT fuse 250 V AC

Spare fuse

4.11.6. Connecting the outdoor module

M001478-B

L N S1 S2 S3

L1 L2 L3 N

L2L1 L3 N S1 S2 S3

1 2

Single phase power supply

Three-phase power supply

4.11.7. Connecting the communication cable between the inside and outside modules

Communication cable liaison: 3 x 1.5 mm

Cable to be supplied by the installer.

M002494-B

PCU

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WARNING

Be careful that you do not invert the wires.

1 Connect to terminals S2, S3 and *. 2 Connect to terminals S2, S3 and *. (Outdoor unit)

4.11.8. Description of the terminal block on the inside module

Inside module with hydraulic back-up

Bus for communication with the outside module

M002407-B

L N S1 S2 S3

S2 S3

S2S3

S2 S3

M002410-B

S2 S3

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Inside module with electrical back-up

Ouput configuration of electric back-ups

Auxiliary electrical power supply

Bus for communication with the outside module

4.11.9. Connecting the mains supply to the inside module

L (Live: Brown)

N (Neutral: Blue)

E * (Earth: Green/yellow wire)

Power connector

CAUTION

The earth conductor must be longer than the live and neutral conductors.

CAUTION

Use the cable clamps provided in the instructions bag.

4.11.10. Connecting the electrical back-up to the inside module

M002408-D

S2 S3

BUS<>HPBUS<>HP

L1 L2 L3 N L N

1 2

Configuration

C2 C1 L1

Alim appoint électriqueAlim appoint électrique

L2 L3 CN

S2 S3

BUS<>HPBUS<>HP

Configuration

C2 C1 L1

Alim appoint électriqueAlim appoint électrique

L2 L3 CN

Three-phase power supply: 400 V AC

M002409-B

Configuration

C2 C1 L1

Alim appoint électriqueAlim appoint électrique

L2 L3 CN

1 2 3

S2 S3

M002489-C

2 3

PCU

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Single phase power supply: 230 V AC

CAUTION

The earth conductor must be longer than the live and neutral conductors.

Fitting the jumpers and bridges

M002393-E

S2 S3

BUS<>HPBUS<>HP

1 2

Configuration

C2 C1 L1

Alim appoint électriqueAlim appoint électrique

L2 L3 CN

S2 S3

BUS<>HPBUS<>HP

Configuration

C2 C1 L1

Alim appoint électriqueAlim appoint électrique

L2 L3 CN

* *

Three-phase

Single phase

For the various options for setting the bridge, see the paragraph below, "Setting the output".

CAUTION

Check that the clips are correctly connected to the tab as poor contact may lead to the connection overheating.

Output control

¼For setting the BACKUP TYPE parameter, see: "Professional settings", page 98

Type

BACKUP TYPE setting

Back-up Output Bridge

Single phase

/E2

Stage 1 2 kW between C2 and

Stage 2 4 kW Stage 1 + 2 6 kW

/E1

Stage 1 2 kW

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Type BACKUP TYPE

setting

Back-up Output Bridge

Three-phase

/E2

Stage 1 4 kW between C3 and

Stage 2 8 kW Stage 1 + 2 12 kW Stage 1 8 kW between C2 and

Stage 2 4 kW Stage 1 + 2 12 kW Stage 1 4 kW Remove bridge Stage 2 4 kW Stage 1 + 2 8 kW

/E1

Stage 1 8 kW between C2 and

4 kW Remove bridge

4.11.11. Connecting the hydraulic auxilary on the inside module

WARNING

Respect the polarity of the terminals: Live (P), neutral (N), and earth (*).

Back-up pump

Burner (Volt free contact)

M002423-B

LN 21

PCU

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4.11.12. Connection example for a system with hydraulic back-up

Boiler fitted with a control panel with a TAM and/or I.TEL input

M003032-C

BUS

EA63

°C

EA61

EA59

°C

On/off

OT BL S ECS

BUS

A B 0V

S EXT

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

PCU

1 2

E.TEL

TAM /

5 6

N L

Not used: Do not connect anything to the terminal block.

CAUTION

Do not connect anything to the DHW pump outlet.

Connect the outside temperature sensor.

Connect the heating pump (Circuit A).

Connect the 3-way valve motor (Circuit B).

Connect the heating pump (Circuit B).

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Connect a safety thermostat if the heating circuit is for underfloor heating: Remove the bridge. Connect the wires from the safety thermostat to the connector.

Not used: Do not connect anything to the terminal block.

Connect the BUS cable between the outside module and the terminal block on the inside module.

Connect the outlet sensor (Circuit B).

Connect the heating pump and the K relays to the AL1 connector on the PCU PCB.

Connect the boiler’s room thermostat to the AL2 connector on the PCU PCB.

Inside module with hydraulic back-up

Outdoor unit

Settings to be made on the inside module for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

O.PUMP A

(1)

Installer level

#SYSTEM menu

CH.PUMP A

¼ "Setting the parameters specific to the installation", page 86

CIRC.A

(1)

Installer level

#SYSTEM menu

DIRECT

¼ "Setting the parameters specific to the installation", page 86

PUMP MIT/MHR

Installer level

#SYSTEM menu

CIRC.A

¼ "Setting the parameters specific to the installation", page 86

CIRC.B

(1)

Installer level

#SYSTEM menu

3WV

¼ "Setting the parameters specific to the installation", page 86

CIRC.CURVE A

Installer level #SECONDARY INSTAL.P menu

1.5

¼ "Professional settings", page 98

CIRC.CURVE B

Installer level #SECONDARY INSTAL.P menu

0.7

¼ "Professional settings", page 98

HP BUS

Installer level

#PRIMARY INSTAL.P menu

TOR

¼ "Professional settings", page 98

BACKUP TYPE

Installer level

#PRIMARY INSTAL.P menu

¼ "Professional settings", page 98

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

Setting the back-up boiler

The setting of the back-up boiler depends on its type of control panel.

4 Diematic 3

Set the following installer settings on the boiler control panel:

- I.TEL: THERM A

- HCZP D / HCZP N: same value as the parameter HEAP

MAX: on the Diematic iSystem control panel on the MIT.

- CIRC.CURVE A: 0.0

- OUT.ANTIFREEZE: -8 °C

Access to parameters:

- Press the - key for 5 seconds.

- Press the ( key 2 times.

- Use key ’ to select the desired parameter.

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4 SVmatic

Heating temperature setting = HEAP MAX:.

4 B control panel

Set the boiler thermostat to the same value as HEAP MAX:.

4 Other

Heating temperature setting = HEAP MAX:.

Operating principle

4 No back-up requested:

The boiler continues to provide DHW. Contacts AL1 and AL2 are both open.

4 Back-up requested:

The AL2 contact closes. The AL1 outlet is powered up: If the boiler is in domestic hot water mode, the back-up pump is not tripped as the K relay is open. The back-up pump is tripped when the domestic hot water load pump stops.

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Boiler fitted with a control panel without TAM input (Modulating room thermostat)

M003033-B

BUS

EA63

°C

EA61

EA59

°C

On/off

OT BL S ECS

BUS

A B 0V

S EXT

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

PCU

1 2

5 6

N L

Not used: Do not connect anything to the terminal block.

CAUTION

Do not connect anything to the DHW pump outlet.

Connect the outside temperature sensor.

Connect the heating pump (Circuit A).

Connect the 3-way valve motor (Circuit B).

Connect the heating pump (Circuit B).

Connect a safety thermostat if the heating circuit is for underfloor heating: Remove the bridge. Connect the wires from the safety thermostat to the connector.

Not used: Do not connect anything to the terminal block.

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Connect the BUS cable between the outside module and the terminal block on the inside module.

Connect the outlet AD 199 sensor (Circuit B).

Connect the heating pump and the K relays to the AL1 connector on the PCU PCB.

Connect the boiler’s inlet CS to the AL2 connector on the PCU PCB.

Inside module with electrical back-up

Outdoor unit

Settings to be made on the inside module for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

O.PUMP A

(1)

Installer level

#SYSTEM menu

CH.PUMP A

¼ "Setting the parameters specific to the installation", page 86

CIRC.A

(1)

Installer level

#SYSTEM menu

DIRECT

¼ "Setting the parameters specific to the installation", page 86

PUMP MIT/MHR

Installer level

#SYSTEM menu

CIRC.A

¼ "Setting the parameters specific to the installation", page 86

CIRC.B

(1)

Installer level

#SYSTEM menu

3WV

¼ "Setting the parameters specific to the installation", page 86

CIRC.CURVE A

Installer level #SECONDARY INSTAL.P menu

1.5

¼ "Professional settings", page 98

CIRC.CURVE B

Installer level #SECONDARY INSTAL.P menu

0.7

¼ "Professional settings", page 98

HP BUS

Installer level

#PRIMARY INSTAL.P menu

TOR

¼ "Professional settings", page 98

BACKUP TYPE

Installer level

#PRIMARY INSTAL.P menu

¼ "Professional settings", page 98

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

Setting the back-up boiler

4 Switch the boiler control system to 24h/24 comfort mode. 4 Heating temperature setting = HEAP MAX:.

Operating principle

4 In DHW production:

The relay K closes the contact CS to enable the burner to start up.

4 In auxiliary heater mode:

The MIT-2 module controls input CS on the boiler and the backup pump. When back-up is requested, the boiler continues to handle DHW priority. After the back-up is shut down, the back-up pump continues to run during the timed period BACKUP PUMP DEL. which can be adjusted in the #HEAT PUMP menu.

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4.11.13. Connection example for a system with electrical back-up

M003034-B

BUS

On/off

OT BL S ECS

BUS

A B 0V

S EXT

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

PCU

1 2

5 6

3 4

A/B

Not used: Do not connect anything to the terminal block.

CAUTION

Do not connect anything to the DHW pump outlet as the reversal valve is connected to the PCU PCB in the boiler.

Connect the outside temperature sensor.

Connect the 3-way valve motor (circuit B) and the circuit B flow sensor.

Connect the heating pump (Circuit B).

Connect a safety thermostat if the heating circuit is for underfloor heating: Remove the bridge. Connect the wires from the safety thermostat to the connector.

Connect the DHW sensor.

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Connect the DHW tank anode.

CAUTION

4 If the tank is fitted with a Titan Active

System® impressed current anode, connect the anode to the inlet (+ TA on the anode, - on the tank).

4 If the tank is not fitted with an impressed

current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Not used: Do not connect anything to the terminal block.

Connect the motor on the DHW reversal valve.

Connect the domestic hot water looping pump to the M outlet.

Connect the BUS cable between the outside module and the terminal block on the inside module.

¼ "Connecting the communication cable between the inside and outside modules", page 47.

Inside module with electrical back-up

Outdoor unit

Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

O.PUMP A

(1)

Installer level

#SYSTEM menu

DHW LOOP

¼ "Setting the parameters specific to the installation", page 86

CIRC.A

(1)

Installer level

#SYSTEM menu

DIRECT

¼ "Setting the parameters specific to the installation", page 86

PUMP MIT/MHR

Installer level

#SYSTEM menu

CIRC.A

¼ "Setting the parameters specific to the installation", page 86

CIRC.B

(1)

Installer level

#SYSTEM menu

3WV

¼ "Setting the parameters specific to the installation", page 86

CIRC.CURVE A

Installer level #SECONDARY INSTAL.P menu

1.5

¼ "Professional settings", page 98

CIRC.CURVE B

Installer level #SECONDARY INSTAL.P menu

0.7

¼ "Professional settings", page 98

HP BUS

Installer level

#PRIMARY INSTAL.P menu

TOR

¼ "Professional settings", page 98

BACKUP TYPE

Installer level

#PRIMARY INSTAL.P menu

/E1 (Stage 1) /E2 (Stage 2)

¼ "Professional settings", page 98

DHW TYPE

Installer level

#PRIMARY INSTAL.P menu

SECONDARY

¼ "Professional settings", page 98

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

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4.11.14. Connection example in cooling mode

M003035-B

BUS

On/off

OT BL S ECS

BUS

A B 0V

S EXT

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

PCU

1 2

5 6

3 4

10 13 14

A/B

230V 50Hz

230V / 400V

50Hz

Not used: Do not connect anything to the terminal block.

CAUTION

Do not connect anything to the DHW pump outlet as the reversal valve is connected to the PCU PCB in the boiler.

Connect the outside temperature sensor.

Connect the 3-way valve motor (circuit B) and the circuit B flow sensor.

Connect the heating pump (Circuit B).

Connect a safety thermostat if the heating circuit is for underfloor heating: Remove the bridge. Connect the wires from the safety thermostat to the connector.

Connect the DHW sensor.

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Connect the DHW tank anode.

CAUTION

4 If the tank is fitted with a Titan Active

System® impressed current anode, connect the anode to the inlet (+ TA on the anode, - on the tank).

4 If the tank is not fitted with an impressed

current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Not used: Do not connect anything to the terminal block.

Connect the motor on the DHW reversal valve.

Connect the domestic hot water looping pump to the MA outlet.

Connect the BUS cable between the outside module and the terminal block on the inside module.

¼ "Connecting the communication cable between the inside and outside modules", page 47.

Connect the relay command on the tank heating resistor to the ELEC ECS terminal block.

Connect the condensation detector (Option).

The condensation detector shuts down cooling if there is a risk of condensation.

CAUTION

We strongly advise installing the cold mode insulation kit to prevent any risk of condensation in the inside module.

Inside module with electrical back-up

Outdoor unit

Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

O.PUMP A

(1)

Installer level

#SYSTEM menu

DHW LOOP

¼ "Setting the parameters specific to the installation", page 86

CIRC.A

(1)

Installer level

#SYSTEM menu

FAN CONVECTOR

¼ "Setting the parameters specific to the installation", page 86

PUMP MIT/MHR

Installer level

#SYSTEM menu

CIRC.A

¼ "Setting the parameters specific to the installation", page 86

CIRC.B

(1)

Installer level

#SYSTEM menu

3WV

¼ "Setting the parameters specific to the installation", page 86

COOLING

Installer level

#PRIMARY INSTAL.P menu

YES+DHW

¼ "Professional settings", page 98

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

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Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

DHW BACKUP

Installer level

#PRIMARY INSTAL.P menu

MIT/D.COOL

¼ "Professional settings", page 98

DHW TYPE

Installer level

#PRIMARY INSTAL.P menu

SECONDARY

¼ "Professional settings", page 98

MINI COOLING A

Installer level #SECONDARY INSTAL.P menu

7 °C

¼ "Professional settings", page 98

MINI COOLING B

Installer level #SECONDARY INSTAL.P menu

10 °C

¼ "Professional settings", page 98

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

4.11.15. Pool connection

M002712-B

On/off

OT BL S ECS

BUS

A B 0V

S EXT

PCU

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

Connect the secondary swimming pool pump.

Connect the swimming pool sensor.

Plate heat exchanger.

Pool heating cut-off control

When the parameter I.TEL is on 0/1 B, the swimming pool is no longer heated when the contact is open (factory setting), only the antifreeze continues to be active. The contact direction can still be adjusted by the parameter CT.TEL.

Connect the primary swimming pool pump.

Do not connect anything to the terminal block.

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Settings to be made for this type of installation

Parameters Access Settings to be made See

INSTALLATION

Installer level Menu #SYSTEM

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

CIRC.B

Installer level Menu #SYSTEM

SWIM.P.

¼ "Setting the parameters specific to the installation", page 86

If I.TEL is used

I.TEL

Installer level Menu #SYSTEM

0/1 B

MAX. CIRC. B

Installer level Menu #SECONDARY

LIMITS

Set the value of MAX.CIRC.B to the temperature corresponding to the needs of the exchanger

¼ "Professional settings", page 98

Controlling the pool circuit

The control system can be used to manage a swimming pool circuit in both cases:

Case 1: The control system regulates the primary circuit (boiler/ exchanger) and the secondary circuit (exchanger/pool).

4 Connect the primary circuit pump (boiler/exchanger) to the MB

outlet on the connection terminal block. The temperature MAX.

CIRC. B is then guaranteed during comfort periods on programme B in summer and winter alike.

4 Connect the swimming pool sensor (package AD212) to the S

DEP B inlet on the connection terminal block.

4 Set the set point of the pool sensor using key C in the range 5 -

39°C.

Case 2: The pool has already a regulation system that is to be kept. The control system only regulates the primary circuit (boiler/exchanger).

4 Connect the primary circuit pump (boiler/exchanger) to the MB

outlet on the connection terminal block. The temperature MAX. CIRC. B is then guaranteed during comfort periods on programme B in summer and winter alike.

The swimming pool must also be connected to circuit C by adding the additional 3-way valve option. With optional package AD249:

4 Make the connection to the terminal blocks marked

4 Set the parameters for circuit C.

Hourly programming of the secondary circuit pump

The secondary pump operates during programme B comfort periods in summer and winter alike.

Stopping

To prepare your pool for winter, consult your pool specialist.

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4.11.16. Connecting the options

M002713-B

PRG

TELCOM 2

ALP

AL2

AL1

SET

#09

4321

On/off

OT BL S ECS

BUS

A B 0V

S EXT

PCU

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

TS + C AUXC

SCU

MODE

0 2 4 6 8 10 12 14 16 18 22 2420

MODE

0 2 4 6 8 10 12 14 16 18 22 2420

Do not connect anything to the terminal block.

Connect the load pump of the second tank.

Second domestic hot water tank

Connect the DHW sensor of the second tank.

Alarm indicator

Connect the TELCOM remote vocal monitoring module (depending on its availability in your country).

Connecting the BUS cascade, VM

Connect the remote control (Package AD254/FM52).

Do not connect anything to the terminal block.

Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

O.PUMP A

(1)

Installer level

#SYSTEM menu

FAILURE

¼ "Setting the parameters specific to the installation", page 86

If second tank connected:

S.AUX

(1)

Installer level

#SYSTEM menu

DHW

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

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4.11.17. Connecting the "energy metering" option

Operating principle

The "energy metering" option provides data on electrical energy consumption and thermal energy production by the outside module, the inside module and the back-ups, according to the chosen configuration (heating, DHW, etc.). The restored values are memorised for two years and can be viewed on the control panel display.

Specifications of the energy meters

Electrical energy meter:

4 Opto-insulated pulse output. 4 Minimum admissible voltage: 27 V 4 Minimum admissible intensity: 20 mA 4 Minimum pulse time: 25 ms 4 Maximum frequency: 20 Hz 4 Pulse weight: Between 1 and 1000 Wh.

Thermal energy meter (Optional):

4 Opto-insulated pulse output. 4 Minimum admissible voltage: 27 V 4 Minimum admissible intensity: 3 mA 4 Minimum pulse time: 5 ms 4 Maximum frequency: 100 Hz 4 Pulse weight: Between 10 and 1000 Wh.

If the thermal energy meter is connected, the pulses are added at the thermal energy value calculated by the sensors and the flowmeter.

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Adjustment

M003006-B

1 2

230Vac 50Hz 230Vac/400Vac 50Hz

Ele2

THERM

Ele1

Electricity meter (to meter the electrical energy consumed by the outside module).

Electricity meter (to meter the electrical energy consumed by the inside module (without electric back-ups)).

Output sensor - PT100.

Return sensor - PT100.

The second electricity meter is not compulsory but can be used to tally the energy absorbed by the inside module (PCBs, circulating pumps, 3-way valves, etc.). The thermal energy is calculated thanks to the two sensors connected to the PCB and the flowmeter in the inside module.

¼Refer to the instructions delivered with the option (HK29).

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CAUTION

Do not install meters for the electric back-ups. The power input when setting the parameters is used to automaticaly calculate the consumed and restored energy.

Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

FLOWM.LOC.

(1)

Installer level Menu #ENERGY

COUNTERS

PCU 194

¼ "Professional settings", page 98

GLYCOL

(1)

Installer level Menu #ENERGY

COUNTERS

ELEC.PUL.VAL.1

(1)

Installer level Menu #ENERGY

COUNTERS

According to the specifications of the electricity meter

ELEC.PUL.VAL.2

(1)

Installer level Menu #ENERGY

COUNTERS

According to the specifications of the electricity meter

BACKUP 1

(1)

Installer level Menu #ENERGY

COUNTERS

According to the stage 1 output configuraton on the electrical back-ups

¼ "Connecting the electrical back-up to the inside module", page 49

BACKUP 2

(1)

Installer level Menu #ENERGY

COUNTERS

According to the stage 2 output configuraton on the electrical back-ups

¼ "Connecting the electrical back-up to the inside module", page 49

DHW RESISTOR

(1)

Installer level Menu #ENERGY

COUNTERS

According to the electrical resistor output of the DHW tank

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

Examples of settings: Metering the energy of the heat pump only: Set parameters BACKUP 1 and BACKUP 2 to 0. Set parameter DHW RESISTOR to 0. Metering the energy of the heat pump and the back-ups: Set parameters BACKUP 1 and BACKUP 2 according to the output

configuration of the stages of the electrical back-ups (¼ "Connecting the electrical back-up to the inside module", page 49). Set parameter DHW RESISTOR according to the electrical output of the DHW tank.

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4.11.18. Connection in cascade

BUS

230V ou 400V 50Hz

EH 114

BUS

230V ou 400V 50Hz

EH 114

M003036-B

°C °C °C °C

Master inside module

Slave inside module

Reversal valve (Package HK23)

Connect the DHW sensor (Package AD212)

BUS cable

Low loss header

Cascade outlet sensor Connect the sensor to the S SYST terminal block on the master appliance.

Outdoor unit

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CAUTION

The "cooling" function is impossible with a connection in cascade.

Settings to be made for this type of installation: master module

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level Menu #SYSTEM

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

CASCADE

(1)

Installer level Menu #NETWORK

¼ "Configuring the network", page 109

MASTER CONTROLER

(1)

Installer level Menu #NETWORK

SYSTEM NETWORK

(1)

Installer level Menu #NETWORK

Enlist generators or VMs in cascade mode.

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

Settings to be made for this type of installation: slave module

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level Menu #SYSTEM

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

CASCADE

(1)

Installer level Menu #NETWORK

¼ "Configuring the network", page 109

MASTER CONTROLER

(1)

Installer level Menu #NETWORK

OFF

SLAVE NUMBER

(1)

Installer level Menu #NETWORK

2, 3, ...

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

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4.11.19. Connection example in power cut off EVU

M003037-B

BUS

On/off

OT BL S ECS

BUS

A B 0V

S EXT

TS + B AB

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

EVU

PCU

1 2

5 6

3 4

A/B

Not used: Do not connect anything to the terminal block.

CAUTION

Do not connect anything to the DHW pump outlet as the reversal valve is connected to the PCU PCB in the boiler.

Connect the outside temperature sensor.

Connect the 3-way valve motor (circuit B) and the circuit B flow sensor.

Connect the heating pump (Circuit B).

Connect a safety thermostat if the heating circuit is for underfloor heating: Remove the bridge. Connect the wires from the safety thermostat to the connector.

Connect the DHW sensor (Package AD212).

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Connect the DHW tank anode.

CAUTION

4 If the tank is fitted with a Titan Active

System® impressed current anode, connect the anode to the inlet (+ TA on the anode, - on the tank).

4 If the tank is not fitted with an impressed

current anode, put the simulation connector in place (delivered with the DHW sensor - package AD212).

Not used: Do not connect anything to the terminal block.

Connect the motor on the DHW reversal valve.

Connect the EVU contact to the 1-2 terminals on the TEL connector.

Connect the BUS cable between the outside module and the terminal block on the inside module.

¼ "Connecting the communication cable between the inside and outside modules", page 47.

Inside module with electrical back-up

Outdoor unit

Buffer tank

Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

INSTALLATION

Installer level

#SYSTEM menu

EXTENDED

¼ "Displaying the parameters in extended mode", page 84

CIRC.A

(1)

Installer level

#SYSTEM menu

DIRECT

¼ "Setting the parameters specific to the installation", page 86

PUMP MIT/MHR

Installer level

#SYSTEM menu

CIRC.A

¼ "Setting the parameters specific to the installation", page 86

CIRC.B

(1)

Installer level

#SYSTEM menu

3WV

¼ "Setting the parameters specific to the installation", page 86

CT.TEL

Installer level

#SYSTEM menu

¼ "Setting the parameters specific to the installation", page 86

I.TEL

Installer level

#SYSTEM menu

0/1 EVU

¼ "Setting the parameters specific to the installation", page 86

DHW TYPE

Installer level

#PRIMARY INSTAL.P menu

SECONDARY

¼ "Professional settings", page 98

BACKUP TYPE

Installer level

#PRIMARY INSTAL.P menu

/E1: Stage 1 /E2: Stage 2

¼ "Professional settings", page 98

HP BUS

Installer level

#PRIMARY INSTAL.P menu

TOR

¼ "Professional settings", page 98

CIRC.CURVE A

Installer level

#SECONDARY INSTAL.P

0.7

¼ "Professional settings", page 98

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

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Settings to be made for this type of installation

Parameters Access Settings to be made See chapter

CIRC.CURVE B

Installer level

#SECONDARY INSTAL.P

0.7

¼ "Professional settings", page 98

OFFSET EVU

Installer level

#SECONDARY INSTAL.P

7 °C

¼ "Professional settings", page 98

EVU TIMER PROG.

User level Menu #TIME PROGRAM

Set the timer programme according to the power cut off hours EVU.

¼Refer to the user instructions.

(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED

4.12 Electrical principle diagram

4.12.1. Legend

0-10 V

Input

M A, B

Baffle, Circuit A, B

AL1 M, AL2

Hydraulic additional heating

C1, C2, C3

Homologation

CN21

Cooling sensor

CN20

Heating sensor

CN2A

HP setpoint

CNX2

Machine fault

CNX4

Defrosting

CNX3

Compressor - ON

ECS

Electrical back-up - Domestic hot water

F6.3AT

6.3A fuse

HMI

Display

J-

PCB connector

Live

L1, L2, L3, D3, N

Auxiliary electrical power supply

Neutral

PCU

Primary control unit

Res

Resistance

RL.

Relay

S2, S3

bus

SONDE ECS

Domestic hot water sensor

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SONDE SYST

System sensor

SONDE AMB A, B, C

Room sensor A, B, C

SONDE DEP B, C

Outlet sensor B, C

SONDE EXT

Outside sensor

Titan Active System

TB6, TB142

Terminal block interface board

Safety thermostat

V3V

3-way valve

X-

PCB connector - PCU

X25

HP pump

X28

Outlet sensor

X29

Flowmeter

X30

Pressure gauge

Through-feed terminal unit

SCU

DIEMATIC iSystem control panel PCB

General switch

DHW circuit reversal valve

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4.12.2. Hydraulic additional heating

SENSOR

FTC LIQUID PIPE

TARGET TEMPERATURE

SENSOR FTC

SWITCHS

34 8

7 5

OFF

SW1

87 56

OFF

SW2

87 56

OFF

SW3

SW6

INTERFACE BOARD

FUSE

T3.15AL 250V

FLOW TEMP

PROBE

CH PUMP

FLOWMETER

HP PUMP

X33

3 2

F6.3AT

V3V

J10

HYDRAULIC B

ACKUP

PWM

DRIVING

PWM

DRIVING

* : 230V AC Main power supply

HMI

PRINCIPLE DIAGRAM INVERTER HYDRAULIC

L N T

S3 1

5 7

TB142

11 13

2 4 6 8

10 12 14

CNX3

2CN 21

2CN 20

°C

X27

1 2

Main Input

PCU-194

3 2 1

N L

q°C

OT BL S EXT S ECS

X11

X12

X28

S0V

X29

X25

3 1

X30

Mano.

1 2

3 4

X23

2 3

5 3

X31

9 10 8

CNX2

CNX4

CN2A

Condens.sensor

+-34

X21

1 2

X34

TB6

BUS

RL-V3VALIM

SCU D4

123412

0-10 V

LNLN 12LN

SONDE

ECS

°C

SENSOR

EXT

°C

SENSOR

AMB A

SENSOR

DEP C

°C

12 12

SENSOR

DEP B

°C

SENSOR

AMB C

SENSOR

AMB B

121212

SONDE

SYST

12 -+

T.A

RL-PA

RL-ECSRL-V3VOF

RL-PB

S2 S3

ECSECS AL2

N21L

°C

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4.12.3. Electrical back-up

SENSOR FTC LIQUID PIPE

TARGET TEMPERATURE

SENSOR FTC

Détail of switchs

34 8

7 5

OFF

SW1

87 56

OFF

SW2

87 56

OFF

SW3

SW6

INTERFACE BOARD

FUSE

T3.15AL 250V

FLOW TEMP

PROBE

CH PUMP

FLOWMETER

HP PUMP

X33

3 2

F6.3AT

V3V

J10

Res

PWM

DRIVING

PWM

DRIVING

C2 C3

* : 230V AC Main power supply

Heating resistor power supply

HMI

PRINCIPLE DIAGRAM INVERTER ELECTRIC

L N T

S3 1

5 7

TB142

11 13

2 4 6 8

10 12 14

RL1

RL3

RL2

RL3

CNX3

2CN 21

q°C

2CN 20

q°C

X27

2 1

Main Input

PCU-194

N L

q°C

OT BL S EXT S ECS

X11

X12

X28

S0V

X29

X25

X30

Mano.

1 2

3 4

X23

2 3

5 3

X31

9 10 8

CNX2

CNX4

CN2A

Condens.sensor

+-34

ECS

X21

1 2

X34

TB6

X24

1 2

X32_B

2 3

BUS

RL2

B3 B2

RL-V3VALIM

SCU D4

123412

0-10 V

LNLN 12LN

SONDE

ECS

°C

SONDE

EXT

q°C

SONDE

AMB A

SONDE

DEP C

q°C

12 12

SONDE

DEP B

q°C

SONDE

AMB C

SONDE

AMB B

121212

SONDE

SYST

12 -+

T.A

RL-PA

RL-ECSRL-V3VOF

RL-PB

S2 S3

°C

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5 Commissioning

5.1 Control panel

5.1.1. Description of the keys

Temperature setting key (heating, DHW, swimming pool)

Operating mode selection key

DHW override key

Key to access the parameters reserved for the installer

Keys on which the function varies as and when selections are made

¼See: "Key functions", page 76

Rotary setting button:

4 Turn the rotary button to scroll through the menus or

modify a value

4 Press the rotary button to access the selected menu

or confirm a value modification

M002616-A

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

1 2

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5.1.2. Description of the display

Key functions

Access to the various menus

(

Used to scroll through the menus

’

Used to scroll through the parameters

The symbol is displayed when help is available

Used to display the curve of the parameter selected

STD

Reset of the time programmes

Selection of comfort mode or selection of the days to be programmed

Selection of reduced mode or deselection of the days to be programmed

Back to the previous level

ESC

Back to the previous level without saving the modifications made

Manual reset

Solar (If connected)

The solar load pump is running

L000200-A

The top part of the tank is reheated to the tank set point

L000201-A

The entire tank is reheated to the tank set point

L000198-A

The entire tank is reheated to the solar tank set point

L000199-A

The tank is not loaded - Presence of the solar control system

Operating modes

Summer mode: Cooling is possible. Domestic hot water continues to be produced.

WINTER mode: Heating and domestic hot water working.

w + p

Forced cooling mode.

Cooling mode: Heating according to the time programme.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

C002696-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

L000197-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

M002620-A

AUTO

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AUTO

Operation in automatic mode according to the timer programme.

Comfort mode: The symbol is displayed when a DAY override (comfort) is activated.

4 Flashing symbol: Temporary override 4 Steady symbol: Permanent override

Reduced mode: The symbol is displayed when a NIGHT override (reduced) is activated.

4 Flashing symbol: Temporary override 4 Steady symbol: Permanent override

Holiday mode: The symbol is displayed when a HOLIDAY override (antifreeze) is activated.

4 Flashing symbol: Holiday mode programmed 4 Steady symbol: Holiday mode active

Manual mode

System pressure

bar

Pressure indicator: The symbol is displayed when a water pressure sensor is connected.

4 Flashing symbol: The water pressure is insufficient. 4 Steady symbol: The water pressure is sufficient.

Water pressure level

4 R: 0,9 to 1,1 bar 4 E: 1,2 to 1,5 bar 4 Z: 1,6 to 1,9 bar 4 A: 2,0 to 2,3 bar 4 l: > 2,4 bar

Domestic Hot Water override

A bar is displayed when a DHW override is activated:

4 Flashing bar: Temporary override 4 Steady bar: Permanent override

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002698-B

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002708-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002707-A

AUTO

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Electrical back-up

The symbol 1 or 2 lights up, depending on whether stage 1 or 2 on the electrical back-up is commanded.

Hydraulic additional heating

4 Steady symbol: The burner and the heating pump on

the back-up boiler are commanded.

4 Flashing symbol: The heating pump on the back-up

boiler is commanded.

Status of the compressor

4 Steady symbol: The compressor is running. 4 Flashing symbol: The heat pump is required but the

compressor is off.

Other information

The symbol is displayed when domestic hot water production is running.

Valve indicator: The symbol is displayed when a 3-way valve is connected.

4 x: 3-way valve opens 4 c: 3-way valve closes

The symbol is displayed when the pump is operating.

Name of the circuit for which the parameters are displayed.

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

M002630-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

M002632-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

M002631-A

AUTO

bar

STD

0 2 4 6 8 10 12 14 16 18 22 2420

C002699-B

AUTO

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5.1.3. Access to the various browsing levels

User level

The information and settings in the User level can be accessed by everyone.

1. Press the > key.

Installer level

The information and settings in the Installer level can be accessed by experienced people.

1. Press the > key.

2. Press the - key.

It is also possible to access the installer level by pressing only the - key for around 5 seconds.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002271-F-04

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After Sales level

The After Sales Service information and settings can be accessed by the professional providing the After Sales Service.

1. Press the > key.

2. Press key - for around 5 seconds.

It is also possible to access the After Sales level by pressing only the - key for around 10 seconds.

5.1.4. Browsing in the menus

1. To select the desired menu, turn the rotary button.

2. To access the menu, press the rotary button.

To go back to the previous display, press the key j.

3. To select the desired parameter, turn the rotary button.

4. To modify the parameter, press the rotary button.

To go back to the previous display, press the key j.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

#MEASURES

#CHOICE TIME PROG.

#TIME PROGRAM #SETTING #TIME .DAY

C002220-B-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CURRENT PROG.B

CURRENT PROG.C

C002221-C-04

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5. To modify the parameter, turn the rotary button.

6. To confirm, press the rotary button.

To cancel, press key h.

7. To go back to the main display, press key j2 times.

It is possible to use the ( and ’ keys instead of the rotary button.

5.2 Check points before commissioning

5.2.1. Hydraulic connections

4 Hoses correctly connected to the heat pump. 4 Fill the installation with water and check hydraulic tightness. 4 Vent the installation with the on/off cycles. Be sure to open all

valves on the heating circuit and the thermostatic valves on the radiators.

4 After venting, check that the filters are not clogged. Clean the

filters.

4 Raise the pressure to 1.5 / 2 bar.

5.2.2. Electrical connection

Check the electrical connections, particularly the earth:

4 HP: Mains supply connected 4 Indoor module: Mains supply connected. 4 depending on the version: Connecting the electrical back-up. 4 HP modules interconnected by BUS cable.

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CURRENT PROG.C

"Choice of the timeprogram applied C"

C002222-C-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

LUNDI 11:45

C002224-D-04

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5.3 Checklist for commissioning (HP)

4 Range:

4 Models:

4 Soft version:

Checklist before commissioning:

Position of the outside unit, distance from the wall

Other functions

Circulation direction of the hydraulic fluids

Cooling

Tightness of the refrigerant fittings

Mixing valve

Pressure during vacuum tapping before filling

Electric OK

Checks after start-up

After 1 hour’s running

Circuit breaker presence (curve C) recommended

Verification of tightness

Tighten the terminals

Vent any air in the heating circuit using the appliance’s air vent

Separation of the power and low voltage cables

Check the water pressure

EAC power cut off (blockage by the electricity supplier)? u ON u OFF

Start-up of the heating circulating pumps

Mounting and position of the outside temperature sensor

No error on regulator

Mounting and position of the room sensor

Compressor starts

Presence and connection of the underfloor heating thermostat

Heat transfer to the heating circuits Additional heating function

Heating mode checks OK

Cleanliness of the filter Flow rate in the primary circuit Δ T heating (between 5 and 15°C)

Instruct the user on how the product operates

Setting the primary pump speed

Notes:

Setting the secondary pump speed Setting the temperature: 55 or 60°C Setting the minimum flow rate

Remarks:

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5.4 Putting the appliance into operation

1. Make a note of the output and type shown on the outside module’s nameplate.

2. Switch on the power by throwing the on/off switch on the inside module.

3. The first time the boiler is powered up, the LANGUAGE menu is displayed. Select the desired language by turning the rotary button.

4. To confirm, press the rotary button.

5. The parameter TYPE displays. According to the values noted on the outside module’s nameplate, select the type of thermodynamic unit by turning the rotary button.

Outside module output

Indoor module TYPE

From 4 to 16 kW

MIT-IN-2/E

MIT AWHP E HT FR

MIT-IN-2/H

MIT AWHP H HT FR

22 and 27 kW

MIT-IN-2/E

MIT AWHP E FR

MIT-IN-2/H

MIT AWHP H FR

Error during the start-up procedure:

4 No information is shown on the display:

- Check the mains supply voltage.

- Check the fuse (¼See chapter: "Location of the fuse", page

47).

- Check the connection of the power cable to the connector on

the PCU PCB (See chapter: ¼ "Connecting the mains supply to the inside module", page 49).

4 If there is a problem, the error is displayed on the screen.

¼See chapter: "Messages", page 118.

MW-M001832-2

C002366-B

Français - Deutsch - English Italiano - Espanol - Nederlands

- Pycck - Polski - Türk -

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

LANGUE FRANCAIS

C002286-C

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5.5 Checks and adjustments after commissioning

5.5.1. Displaying the parameters in extended

mode

The display mode on the control panel is set as standard in such a way as only to show the conventional parameters. It is possible to switch to extended mode by proceeding as follows:

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #SYSTEM.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80

3. Set parameter INSTALLATION to EXTENDED.

Installer level - Menu #SYSTEM

Parameter Adjustment range Description Factory setting Customer setting

INSTALLATION TRADITIONAL

Displays the parameters of a conventional installation

TRADITIONAL

EXTENDED

Displays all parameters

Regardless of what is done to the keys, the regulator switches back to TRADITIONAL mode after 30 minutes.

5.5.2. Setting the heating pump speed on the heat

pump

The setting is used to select the speed of the primary pump located between the condenser and the tank, according to the output of the outside module; it is important to guarantee correct running of the heat pump.

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #PRIMARY LIMITS:

Turn the rotary button to scroll through the menus or modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

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Installer level - Menu #PRIMARY LIMITS

Parameter Adjustment range Description Factory setting Customer setting MHR.PUMP SPEED

(1)

1 - 5 Speed of the heat pump heating pump 3

4 1: 4, 6 kW 4 2: 8, 11 kW 4 4: 16 kW 4 5: 22, 27 kW

(1) The menu is displayed only if the INSTALLATION parameter is set to EXTENDED

5.5.3. Setting the flow rate threshold

Setting the flow rate threshold is used to select the threshold below which the heat pump goes into safety shutdown. The flow rate threshold must be chosen according to the type of outside module (See table below).

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #PRIMARY INSTAL.P:

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80.

Installer level - Menu #PRIMARY INSTAL.P

(1)

Parameter Adjustment range Description Factory setting Customer setting

MIN.MES.FLOW.

OFF / 5 - 60 Flow rate limit below which a message is

displayed indicating that the flow rate is low.

¼See chapter: "Messages", page

118.

25 l/mim.

MIN.STOP.FLOW.

OFF / 5 - 60 Flow rate limit below which the heat pump goes

into default. After 4 successive defaults, the system must be

reset.

17 l/mim.

(1) The menu is displayed only if the INSTALLATION parameter is set to EXTENDED

Type of group MIN.MES.FLOW. MIN.STOP.FLOW.

l/min l/min 4, 6 kW 12 8 8 kW 16 13 11 kW 19 13 16 kW 28 19 22, 27 kW 35 30

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

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CAUTION

Check the water flow rate in the system, which must be higher by at least 4 to 5 l/min than the MIN.MES.FLOW. value. Check the parameter FLOWMETER.

¼See chapter: "Reading out measured values", page

94. If the flow rate is too low, clean the filter upstream of the

plate heat exchanger. ¼See chapter: "Cleaning the 400 µm filter", page

114.

5.5.4. Setting the parameters specific to the installation

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #SYSTEM.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80

3. Set the following parameters according to the connections made

to the PCBs:

Installer level - Menu #SYSTEM

Parameter Adjustment range Description Factory setting Customer

setting

CIRC.A

(1) (2)

DIRECT

Use as a direct heating circuit (Radiator). Cooling is not possible.

DIRECT

HEATING FL.

Use as direct circuit on underfloor heating. Cooling is possible.

PROGRAM.

Use as an independent programmable outlet.

H.TEMP

Enables operation of circuit A in summer despite manual or automatic summer shutdown.

FAN CONVECTOR

Use as fan coil unit circuit. Cooling is possible.

DHW

Connection of a second domestic hot water tank.

DHW ELEC

Used to control the electrical resistor according to the timer programme on circuit A in summer mode.

DISAB.

No data for circuit A is displayed.

(1) The parameter is only displayed if INSTALLATION is set to EXTENDED (2) If the pump incorporated in the boiler is used for circuit A (parameter CIRC.A set to DIRECT), the O.PUMP A outlet is free (3) The parameter is only displayed if the parameter O.PUMP A is set to CIRC.AUX or the 3-way valve PCB option is connected (4) The parameter is only displayed if a sensor is connected to the S.SYST inlet

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

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Installer level - Menu #SYSTEM

Parameter Adjustment range Description Factory setting Customer

setting

O.PUMP A

(1) (2)

CH.PUMP A

Heating pump circuit A: The PUMP A outlet is used to control the pump on circuit A.

CH.PUMP A

CIRC.AUX

Used to resume the functions of the S.AUX parameter without adding the PCB + sensor option (Package AD249).

DHW LOOP

Used to control the domestic hot water looping pump according to the DHW timer programme and force its operation during an override.

PRIMARY PUMP

The outlet PUMP A is active if a heating demand is present on the secondary pump.

FAILURE

The outlet PUMP A is active if an fault is detected.

DEF.CASC

The Pump A outlet is active if a fault is present in the cascade.

VM P

The Pump A outlet is active if the VM pump is active.

COLD

The Pump A outlet is active in cold running.

PUMP MIT/MHR ALL

Runs if a circuit is required.

ALL

CIRC.A

Runs if A is required.

CIRC.B

(1)

3WV

Connecting a circuit with 3-way valve (For example: Underfloor heating).

3WV

SWIM.P.

Using the circuit for pool management.

FAN CONVECTOR

Use as fan coil unit circuit.

CIRC.C

(1)

3WV

Connecting a circuit with 3-way valve (For example: Underfloor heating).

3WV

SWIM.P.

Using the circuit for pool management.

FAN CONVECTOR

Use as fan coil unit circuit.

P.DHW

(1)

PUMP

Not used.

S.AUX

(1) (3)

DHW LOOP

Use as a domestic loop pump.

DHW LOOP

PROGRAM.

Use as an independent programmable outlet.

PRIMARY PUMP

The outlet AUX PUMP is active if a heating demand is present on the secondary pump.

DHW

Use of primary circuit of second DHW tank.

FAILURE

The outlet AUX PUMP is active if a fault is detected.

DHW ELEC

Used to control the electrical resistor according to the timer programme on circuit AUX in summer mode.

COLD

The AUX Pump outlet is active in cold running.

VM P

The AUX Pump outlet is active if the VM pump is active.

DEF.CASC

The AUX Pump outlet is active if a fault is present in the cascade.

I.SYST

(1) (4)

SYSTEM

The inlet sensor is used to connect the common flow sensor of a cascade system.

SYSTEM

BUFFER TANK

Hot water storage tank affected to heating only.

DHW STRAT

Using the DHW tank with 2 sensors (top and bottom).

ST.TANK+DHW

Hot water storage tank affected to heating and domestic hot water.

DISAB.

Not used.

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Installer level - Menu #SYSTEM

Parameter Adjustment range Description Factory setting Customer

setting

O.TEL

(1)

FAILURE

The telephone outlet is closed in the event of failure.

FAILURE

REVISION

The telephone outlet is closed in the event of revision display.

DEF+REV

The telephone outlet is closed in the event of failure or revision display.

CT.TEL

(1)

See table below.

Open

I.TEL

(1)

ANTIFR

Boiler anti-freeze activation.

ANTIFR

0/1 A

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit A.

0/1 B

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit B.

0/1 A+B

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits A+B

0/1 C

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit C.

0/1 A+C

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits A+C

0/1 B+C

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits B+C

0/1 A+B+C

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits A+B+C

0/1 DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuit ECS.

I.TEL

(1)

0/1 A+DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits A+ECS

ANTIFR

0/1 B+DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits B+ECS

0/1 A+B+DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits A+B+ECS

0/1 C+DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits C+ECS

0/1 A+C+DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits A+C+ECS

0/1 B+C+DHW

ON or OFF contact: I.TEL: can be used as an antifreeze activation inlet on circuits B+C+ECS

0/1 AUX

ON or OFF contact: I.TEL can be used as an antifreeze activation inlet on circuit AUX (S.AUX if the AD 249 option is connected or the parameter O.PUMP A is set to CIRC.AUX). When I.TEL is not activated, the auxiliary circuit (AUX) follows the maximum temperature of the inside module (parameter MAX MIT).

0/1 EVU

ON or OFF contact: Enables you to use I.TEL as an EVU power cut off inlet.

IN 0-10V

Enables use of I.TEL as the input for a 0–10 V command.

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Influence of the parameter setting CT.TEL on the I.TEL contact

CT.TEL I.TEL I.TEL contact closed I.TEL contact open

CLOSE ANTIFR

The antifreeze mode is active on all circuits. The heating system is off.

The mode selected on the inside module is active.

0/1 A

The mode selected on the circuit is active. The antifreeze mode is active on the circuit

concerned.

0/1 B

The mode selected on the circuit is active. The antifreeze mode is active on the circuit

concerned.

0/1 C

The mode selected on the circuit is active. The antifreeze mode is active on the circuit

concerned.

0/1 DHW

The mode selected on the DHW circuit is active. The antifreeze mode is active for the DHW circuit.

0/1 AUX

4 The MAUX outlet on the connection terminal

block is active.

4 The device operates with a set point temperature

equal to MAX MIT.

4 The MAUX outlet on the connection terminal

block is not active.

4 The device operates with a set point temperature

dependent on the outside temperature.

0/1 EVU

No EVU power cut off The heat pump and back-ups are cut off. The buffer

tank meets the heating needs.

Open ANTIFR

The mode selected on the inside module is active. The antifreeze mode is active on all circuits.

The heating system is off.

0/1 A

The antifreeze mode is active on the circuit concerned.

The mode selected on the circuit is active.

0/1 B

The antifreeze mode is active on the circuit concerned.

The mode selected on the circuit is active.

0/1 C

The antifreeze mode is active on the circuit concerned.

The mode selected on the circuit is active.

0/1 DHW

The antifreeze mode is active for the DHW circuit. The mode selected on the DHW circuit is active.

0/1 AUX

4 The MAUX outlet on the connection terminal

block is not active.

4 The device operates with a set point temperature

dependent on the outside temperature.

4 The MAUX outlet on the connection terminal

block is active.

4 The device operates with a set point temperature

equal to MAX MIT.

0/1 EVU

The heat pump and back-ups are cut off. The buffer tank meets the heating needs.

No EVU power cut off

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Power cut off (EVU)

Circulator

EVU power cut off timer program

Compressor

Outside temperature

Temperature set point

Temperature OFFSET EVU (0 to 20 K)

Phase A (¼See below)

Phase B (¼See below)

Phase C (¼See below)

EVU

EVU function

Phase A

Normal operation according to the DHW and ECO / COMFORT timer programme.

Phase B

Start-up of the EVU timer programme. The set point temperature on the inside module is increased by the value shown in the OFFSET EVU parameter as long as the EVU timer programme is active and the EVU signal is absent (the EVU contact is closed). Domestic hot water production can only be handled if the tank has an electrical resistor.

Phase C

Presence of the EVU signal (the EVU contact is open). The outside module, the back-ups and the heating pumps on the inside module are powered down. The secondary pumps continue to run as long as the circuits concerned are required. No DHW production enabled.

M002702-A

A B

EVU

C A

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5.5.5. Naming the circuits and generators

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #NAMES OF THE CIRCUITS.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80

3. Select the circuit or generator you wish to rename.

Installer level - Menu #NAMES OF THE CIRCUITS

Parameter Description Name given by the customer

CIRC.A

Circuit A

CIRC.B

Circuit B

CIRC.C

Circuit C

CIRC.AUX

Auxiliary circuit

CIRC.DHW

Domestic hot water circuit

GENE

Generator

4. Turn the rotary button to choose the first character from the list.

To confirm, press the rotary button.

5. Then press again to enter a second character or turn the rotary

button to leave an empty space.

6. Choose the other characters in the same way. The input zone may

contain up to 6 characters.

To move from one character to another, turn the rotary button. To exit without modifications, press key h.

7. To confirm the name, press the rotary button and then turn the

button slightly anti-clockwise. When the symbol U appears, press the rotary button. The name is confirmed.

If the name reaches 6 characters, it is automatically confirmed when the last character is confirmed.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CIRC.B I

"Personalize the nameof this circuit B"

E F G H

. .

C002344-E-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CIRC.B FLOOR1

"Personalize the nameof this circuit B"

X Y Z

. . .

C002345-D-04

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5.5.6. Setting the heating curve

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #SECONDARY INSTAL.PAL}.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80.

3. Select the parameter CIRC.CURVE ...

4. To modify the value directly, turn the rotary button.

To modify the value by displaying the curve, press key f.

5. To modify the curve, turn the rotary button.

6. To confirm, press the rotary button.

To cancel, press key h.

0.7 = Heating curve set.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

BUILD.INERTIA

CIRC.CURVE B

CIRC.CURVE C

SCREED DRYING

2.0

0.7 No

C002316-E-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

CIRC.CURVE B

"Slope of the heatcurve of the circuit B"

2.0

C002317-D-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

75 64

020 -15

C002318-B-04

0,7

0.7

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Page 95

Heating curve without BCT

Maximum temperature of the circuit

Water temperature in the circuit for an outside temperature of 0°C

DAY set point on the circuit

Outside temperature for which the maximum water temperature in the circuit is reached

Value of the heating curve Select the parameter CIRC.CURVE ..

When you modify the heating curve, Z and R are recalculated and repositioned automatically.

Heating curve with BCT

The BCT (Base heat Curve Temperature) parameter allows a minimum operating temperature to be imposed on the heating circuit (this temperature may be constant if the circuit gradient is nil).

Maximum temperature of the circuit

Water temperature in the circuit for an outside temperature of 0°C

DAY set point on the circuit

Outside temperature for which the maximum water temperature in the circuit is reached

Value of the heating curve Select the parameter CIRC.CURVE ..

Value set to the parameter HCZP D

When you modify the heating curve, Z and R are recalculated and repositioned automatically.

20 0 -16

C°

1.5

C002319-B

20 0 -15

C°

0.7

C002320-B

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5.5.7. Setting the speed of the heating pump on the inside module

The setting is used to select the speed of heating pump A, located on the secondary tank circuit. The speed must be selected in such a way as to have a temperature differential between the flow and the return of 5 to 10 K when running at nominal output.

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #PRIMARY LIMITS:

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80.

Installer level - Menu #PRIMARY LIMITS

Parameter Adjustment range Description Factory setting Customer setting PERCENT PUMP MIT

(1)

1 - 5 Inside module pump speed 3

(1) The menu is displayed only if the INSTALLATION parameter is set to EXTENDED

CAUTION

The integrated filter must be cleaned after one hour’s operation on commissioning.

¼ "Cleaning the 400 µm filter", page 114.

5.6 Reading out measured values

The various values measured by the appliance are displayed in the #MEASURES menu.

1. To access user level: Press the > key.

2. Select the menu #MEASURES.

Turn the rotary button to scroll through the menus or modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

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User level - Menu #MEASURES

Parameter Description Unit

OUTSIDE TEMP.

Outside temperature °C

ROOMTEMP.A

(1)

Room temperature of circuit A °C

ROOMTEMP.B

(1)

Room temperature of circuit B °C

ROOMTEMP.C

(1)

Room temperature of circuit C °C

MIT TEMP.

Inside module flow sensor measurement °C

PRESSURE

Water pressure in the installation bar (MPa)

WATER TEMP.

(1)

Water temperature in the DHW tank °C

STOR.TANK.TEMP

(1)

Water temperature in the storage tank °C

SWIMMING P.T.B

(1)

Water temperature of the swimming pool on circuit B °C

SWIMMING P.T.C

(1)

Water temperature of the swimming pool on circuit C °C

OUTLET TEMP.B

(1)

Temperature of the flow water in circuit B °C

OUTLET TEMP.C

(1)

Temperature of the flow water in circuit C °C

TEMP.SYSTEM

(1)

Temperature of the system flow water if multi-generator °C

T.DHW BOTTOM

(1)

Water temperature in the bottom of the DHW tank °C

TEMP.TANK AUX

(1)

Water temperature in the second DHW tank connected to the AUX circuit °C

DHW A TEMP.

(1)

Water temperature in the second DHW tank connected to circuit A °C

TEMP.SOL.TANK

(1)

Temperature of the hot water produced by solar power (TS) °C

SOLAR.COLL.T.

(1)

Solar panel temperature (TC) °C

SOLA.ENERGY

(1)

Solar energy accumulated in the tank kWh

FLOWMETER

Plate exchanger flow rate l/min

NB IMPULS.COMP

Number of heat pump start-ups

RUNTIME HP

Number of hours’ operation of the heat pump compressor h

IN 0-10V

(1)

Voltage at input 0-10 V V

SEQUENCE

Control system sequence

CTRL Software control number (SCU)

DT INSTALLATION

Installation temperature delta K

ELEC.ENERGY

(1)

Total electrical energy consumed kWh

ELEC.ENERG.Y1

(1)

Total electrical energy consumed in the previous year kWh

ELEC.ENERG.Y2

(1)

Total electrical energy consumed two years ago kWh

THERM.ENERGY

(1)

Total thermal energy yield kWh

THERM.ENERG.Y1

(1)

Total thermal energy yield in the previous year kWh

THERM.ENERG.Y2

(1)

Total thermal energy yield two years ago kWh

(1) The parameter is only displayed for the options, circuits or sensors actually connected.

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5.7 Changing the settings

The heat pump control panel is set for the most common heating installations. With these settings, practically all heating systems operate correctly. The user or installer can optimise the parameters according to own preferences.

¼For the user settings, refer to the user instructions.

5.7.1. Language selection

1. Access the installer level: Press key - for around 5 seconds.

2. Select the menu #LANGUAGE.

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80

Installer level - Menu #LANGUAGE

Adjustment range Description

FRANCAIS Display in French DEUTSCH Display in German ENGLISH Display in English ITALIANO Display in Italian ESPANOL Display in Spanish NEDERLANDS Display in Dutch POLSKI Display in Polish PУCCKИЙ Display in Russian TÜRK Display in Turkish

5.7.2. Calibrating the sensors

1. To access user level: Press the > key.

2. Select the menu #SETTING.

Turn the rotary button to scroll through the menus or modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80

3. Set the following parameters:

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

bar

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

C002219-D-04

5. Commissioning

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User level - Menu #SETTING

Parameter Adjustment

range

Description Factory setting Customer

setting

SUM/WIN 15 to 30 °C Used to set the outside temperature above

which heating will be shut down.

4 The heating pumps are shut down. 4 The heat pump only starts up for

domestic hot water needs.

4 In this case the letter E and symbol p

are displayed.

22 °C

Heating is never shut down automatically

CALIBR.OUT

Outside sensor calibration: Used to correct the outside temperature

Outside temperature

CALIBR.ROOM A

(1)

Calibration of the room sensor on circuit A Make this setting 2 hours after switching on, when the room temperature has stabilised

Room temperature of circuit A

OFFSET ROOM A

(2)

-5.0 to +5.0 °C Room offset on circuit A: Is used to set a room offset Make this setting 2 hours after switching on, when the room temperature has stabilised

0.0

ANTIFR.ROOM A 0.5 to 20 °C Room temperature antifreeze activation on

circuit A

6 °C

CALIBR.ROOM B

(1)

(3)

Calibration of the room sensor on circuit B Make this setting 2 hours after switching on, when the room temperature has stabilised

Room temperature of circuit B

OFFSET ROOM B

(2)

(3)

-5.0 to +5.0 °C Room offset on circuit B: Is used to set a room offset Make this setting 2 hours after switching on, when the room temperature has stabilised

0.0

ANTIFR.ROOM B

(3)

0.5 to 20 °C Room temperature at which the antifreeze mode is activated on circuit B

6 °C

CALIBR.ROOM C

(1)

(3)

Calibration of the room sensor on circuit C Make this setting 2 hours after switching on, when the room temperature has stabilised

Room temperature of circuit C

OFFSET ROOM C

(2)

(3)

-5.0 to +5.0 °C Room offset on circuit C: Is used to set a room offset Make this setting 2 hours after switching on, when the room temperature has stabilised

0.0

ANTIFR.ROOM C

(3)

0.5 to 20 °C Room temperature antifreeze activation on circuit C

6 °C

COST HIGH TARIFF

(4)

€ 0.01 to € 2.50 Cost of peak time electrical energy. 0.13

COST HIGH TARIFF

(4)

€ 0.01 to € 2.50 Cost of off-peak electrical energy. The tariff

is only factored in if parameter E. BL is set to HP/HC and the contact on the BL input is closed.

¼ "Professional settings", page 98

0.09

COST GAS.OIL

(4)

€ 0.01 to € 2.50 Cost of fossil energy (oil or gas). (Price per

litre or m3 )

0.90

(1) The parameter is only displayed if a room sensor is connected to the circuit concerned (2) The parameter is only displayed if no room sensor is connected to the circuit concerned or the sensor has no influence (3) The parameter is only displayed if the circuit concerned is actually connected (4) The parameter is only displayed if HYBRID ENABLED is set to COST

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5.7.3. Professional settings

1. Access the installer level: Press key - for around 5 seconds.

2. Set the following parameters:

4 Turn the rotary button to scroll through the menus or

modify a value.

4 Press the rotary button to access the selected menu

or confirm a value modification.

For a detailed explanation of menu browsing, refer to

the chapter: "Browsing in the menus", page 80.

Installer level - Menu #PRIMARY LIMITS

Parameter Adjustment range Description Factory setting Customer setting

MAX MIT

20 to 79 °C Maximum temperature of the MIT 4 to 16 kW: 65 °C

22 and 27 kW: 60 °C

MAX HP

(1)

20 to 79 °C Maximum heat pump temperature 4 to 16 kW: 65 °C

22 and 27 kW: 60 °C

PERCENT PUMP MIT

(1)

¼See chapter: "Setting the speed of the heating pump on the inside module", page 94

MHR.PUMP SPEED

(1)

¼See chapter: "Setting the heating pump speed on the heat pump", page 84

STOP HP:

(1)

-20 to +5 °C Heat pump shutdown temperature -15 °C

TEMP MIN DEFR.

(1)

25 to 40 °C Minimum defrosting temperature 25 °C

BIVALENCE.TEMP

(1)

-10 to +20 °C Temperature at the bivalence point 10 °C

(1) The parameter is only displayed if INSTALLATION is set to EXTENDED

Installer level - Menu #SECONDARY LIMITS

Parameter Adjustment range Description Factory setting

MAX.CIRC.A

30 to 95 °C Maximum temperature (Circuit A)

¼ "MAX.CIRC...", page 105

75 °C

MAX.CIRC.B

20 to 95 °C Maximum temperature (Circuit B)

¼ "MAX.CIRC...", page 105

50 °C

MAX.CIRC.C

20 to 95 °C Maximum temperature (Circuit C)

¼ "MAX.CIRC...", page 105

50 °C

OUT.ANTIFREEZE

OFF, -8 to +10 °C Outside temperature at which the installation’s antifreeze protection

is activated. Below this temperature the pumps are permanently on and the minimum temperatures for each circuit are respected. When NIGHT :STOP is set, the reduced temperature is maintained in each circuit (Menu #SECONDARY INSTAL.P).

OFF: Antifreeze protection is not activated

+3 °C

HCZP D A

(1) (2)

OFF, 20 to 90 °C Curve base temperature in Daytime mode (Circuit A)

OFF

HCZP N A

(1) (2)

OFF, 20 to 90 °C Curve base temperature in Nighttime mode (Circuit A)

OFF

HCZP D B

(1) (2)

OFF, 20 to 90 °C Curve base temperature in Daytime mode (Circuit B)

OFF

HCZP N B

(1) (2)

OFF, 20 to 90 °C Curve base temperature in Nighttime mode (Circuit B)

OFF

(1) The parameter is only displayed if INSTALLATION is set to EXTENDED (2) The parameter can be set to the heating curve by pressing key f.

STD

(

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

SUNDAY 11:45

TEMP.: 68°

C002235-F-04

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DeDietrich AWHP-2 MIT-IN-2 iSystem, MIT-IN-2/E, MIT-IN-2/H Installation And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual