DE DIETRICH AWHP-2 MIT-IN-2 User Manual

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HPI EVOLUTION

Air / water heat pump

AWHP-2 MIT-IN-2 iSystem

User Guide

7616372-001-02

Contents

1 Introduction ................................................................................................4

1.1 Symbols used .......................................................4

1.1.1 Symbols used in the manual ...................................4

1.1.2 Symbols used on the equipment .............................4

1.2 Abbreviations ........................................................5

1.3 Liabilities ...............................................................5

1.3.1 Manufacturer’s liability .............................................5

1.3.2 Installer’s liability .....................................................6

1.3.3 User’s liability ..........................................................6

1.4 Homologations ......................................................6

1.4.1 Certifications ...........................................................6

2 Safety instructions and recommendations ..............................................8

2.1 Safety instructions ...............................................8

2.2 Recommendations ................................................8

3 Description ..................................................................................................9

3.1 General description ..............................................9

3.2 Control panel .........................................................9

3.2.1 Description of the keys ............................................9

3.2.2 Description of the display ......................................10

3.2.3 Browsing in the menus ..........................................13

4 Operating the appliance ..........................................................................15

4.1 Putting the appliance into operation ................15

4.2 Reading out measured values ...........................16

4.3 Changing the settings ........................................17

4.3.1 Setting the set point temperatures ........................17

4.3.2 Selecting the operating mode ...............................18

4.3.3 Forcing domestic hot water production .................19

4.3.4 Setting the contrast and lighting on the

display ...................................................................19

4.3.5 Setting the time and date ......................................20

4.3.6 Selecting a timer programme ................................20

4.3.7 Customising a timer programme ...........................21

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Contents

4.4 Installation shutdown .........................................23

4.5 Turning on the antifreeze function ....................23

5 Troubleshooting .......................................................................................24

5.1 Anti-hunting ........................................................24

5.2 Messages .............................................................24

5.3 Faults (Code type Lxx or Dxx) ...........................26

6 Technical specifications ..........................................................................29

6.1 Technical specifications ....................................29

6.1.1 Electricity supply ...................................................29

6.1.2 Heat pump .............................................................29

6.1.3 Sensor characteristics ...........................................31

7 Energy savings .........................................................................................32

7.1 Energy savings ...................................................32

7.1.1 Energy-saving advice ............................................32

7.1.2 Room thermostat and settings ..............................32

7.2 Recommendations ..............................................32

8 Warranty ....................................................................................................34

8.1 General ................................................................34

8.2 Warranty terms ...................................................34

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1 2

M002628-A

AWHP-2 MIT-IN-2 iSystem

1 Introduction

1.1 Symbols used

1. Introduction

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, obviate 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.

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

1. Introduction

1.2 Abbreviations

AWHP-2 MIT-IN-2 iSystem

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

1.3 Liabilities

4 EER: Frigorific efficiency ratio

4 Flow temperature: Temperature of the water circulating in the

radiators or in the underfloor heating.

4 Ambient temperature: Temperature inside the house or in a room.

4 Room temperature setpoint: Temperature programmed in the

control system that must be reached by the heat pump.

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.

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AWHP-2 MIT-IN-2 iSystem

1. Introduction

1.3.2. Installer’s liability

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

4 Read and follow the instructions given in the manuals provided

with the appliance.

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.

1.3.3. User’s liability

To guarantee optimum operation of the appliance, the user must respect the following instructions:

1.4 Homologations

4 Read and follow the instructions given in the manuals provided

with the appliance.

4 Call on qualified professionals to carry out installation and initial

start up.

4 Get your installer to explain your installation to you.

4 Have the required checks and services done by a qualified

professional.

4 Keep the instruction manuals in good condition close to the

appliance.

This appliance is not intended to be used by persons (including children) whose physcial, sensory or mental capacity is impaired or persons with no experience or knowledge, unless they have the benefit, through the intermediary of a person responsible for their safety, of supervision or prior instructions regarding use of the appliance. Care should be taken to ensure that children do not play with the appliance.

If the mains lead is damaged it must be replaced by the original manufacturer, the manufacturer’s dealer or another suitably skilled person to prevent hazardous situations.

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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.

1. Introduction AWHP-2 MIT-IN-2 iSystem

4 2004/108/EC Electromagnetic Compatibility Directive. Generic

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

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AWHP-2 MIT-IN-2 iSystem

2 Safety instructions and

recommendations

2.1 Safety instructions

DANGER

If smoke is released or in case of refrigerant leak:

1. Switch the appliance off.

2. Open the windows.

3. Evacuate the premises.

4. Contact a qualified professional.

2. Safety instructions and recommendations

2.2 Recommendations

WARNING

Depending on the settings of the appliance:

4 The temperature of the radiators may reach 80°C.

4 Do not touch the refrigeration connection pipes with

your bare hands while the appliance is running. Danger of burns or frost injury.

CAUTION

Do not neglect to service the appliance. Contact a qualified professional or take out a maintenance contract for the annual servicing of the appliance.

WARNING

Only qualified professionals are authorised to work on the appliance and the installation.

4 Regularly check that the water pressure in the installation is

between 1,5 and 2 bar.

4 Ensure that the appliance is accessible at all times for

maintenance purposes.

4 Avoid draining the installation.

4 Use only original spare parts.

4 Never remove or cover labels and rating plates affixed to the

appliance. Labels and rating plates must be legible throughout the entire lifetime of the appliance.

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M002616-A

bar

STD

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

AUTO

1 2

3. Description AWHP-2 MIT-IN-2 iSystem

3 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 Control panel

3.2.1. Description of the keys

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L000200-A

L000201-A

L000198-A

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

AWHP-2 MIT-IN-2 iSystem 3. Description

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 10

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

3.2.2. Description of the display

Key functions

> ( ’

STD

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

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

ESC

Back to the previous level

Back to the previous level without saving the modifications made

Solar (If connected)

Manual reset

The solar load pump is running

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

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The entire tank is reheated to the tank set point

The entire tank is reheated to the solar tank set point

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