DeDietrich AWHP 6 MR Manual

HPI EN
Air / water heat pump
AWHP MIT-IN iSystem
Installation and
Service Manual
300027606-001-01

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 General ..................................................................7
1.3.1 Manufacturer's liability .............................................7
1.3.2 Installer's liability .....................................................7
1.4 Homologations ......................................................8
1.4.1 Certifications ...........................................................8
2Safety instructions and recommendations ..............................................9
2.1 Safety instructions ...............................................9
2.2 Recommendations ................................................9
3Technical description ..............................................................................11
3.1 General description ............................................11
3.2 Main parts (Indoor module) ...............................11
3.2.1 MIT-IN/H ................................................................11
3.2.2 MIT-IN/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 .............................................................14
3.4.3 Sensor characteristics ...........................................15
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
124/09/2012 - 300027606-001-01

4.3 Data plate .............................................................19
4.4 Installing the outdoor module ...........................19
4.4.1 Location of the appliance ......................................19
4.4.2 Main dimensions ...................................................22
4.4.3 Locating the outside module ................................26
4.5 Installing the indoor module ..............................27
4.5.1 Location of the appliance ......................................27
4.5.2 Main dimensions ...................................................27
4.5.3 Assembly of the MIT 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 Refrigeration connection ...................................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 ..................................39
4.10.1 Water treatment in the heating circuit ...................39
4.10.2 Filling the system ..................................................40
4.11 Electrical connections ........................................41
4.11.1 Recommendations ................................................41
4.11.2 Recommended cable cross section ......................42
4.11.3 Accessing the connection terminal blocks ............43
4.11.4 Position of the PCBs .............................................44
4.11.5 Location of the fuse ...............................................45
4.11.6 Connecting the outdoor module ............................45
4.11.7 Connecting the communication cable between the
inside and outside modules ...................................45
4.11.8 Description of the terminal block on the inside
module ..................................................................46
4.11.9 Connecting the mains supply to the inside
module ..................................................................47
4.11.10 Connecting the electrical back-up to the inside
module (MIT-IN/E only) .........................................47
4.11.11 Connecting the hydraulic auxilary on the inside
module (MIT-IN/H only) .........................................49
4.11.12 Example of connecting a system with MIT-IN/
H ............................................................................50
4.11.13 Example of connecting a system with MIT-IN/
E ............................................................................54
4.11.14 Connection example in cooling mode ...................56
4.11.15 Pool connection .....................................................58
4.11.16 Connecting the options .........................................60
Contents
224/09/2012 - 300027606-001-01

4.11.17 Connection in cascade ..........................................61
4.11.18 Connection example in power cut off EVU ............63
4.12 Electrical principle diagram ...............................66
5 Commissioning ........................................................................................70
5.1 Control panel .......................................................70
5.1.1 Description of the keys ..........................................70
5.1.2 Description of the display ......................................71
5.1.3 Access to the various browsing levels ..................74
5.1.4 Browsing in the menus ..........................................75
5.2 Check points before commissioning ................76
5.2.1 Hydraulic connections ...........................................76
5.2.2 Electrical connection .............................................76
5.3 Putting the appliance into operation ................77
5.4 Checks and adjustments after
commissioning ...................................................78
5.4.1 Displaying the parameters in extended
mode .....................................................................78
5.4.2 Setting the parameters specific to the
installation .............................................................78
5.4.3 Naming the circuits and generators ......................83
5.4.4 Setting the heating curve ......................................84
5.4.5 Setting the heating pump speed on the heat
pump .....................................................................86
5.4.6 Setting the speed of the heating pump on the inside
module ..................................................................86
5.4.7 Setting the flow rate threshold ...............................87
5.5 Reading out measured values ...........................88
5.6 Changing the settings ........................................89
5.6.1 Language selection ...............................................89
5.6.2 Calibrating the sensors .........................................90
5.6.3 Professional settings .............................................91
5.6.4 Configuring the network ........................................99
5.6.5 Return to the factory settings ..............................102
324/09/2012 - 300027606-001-01

6 Switching off the appliance ...................................................................103
6.1 Installation shutdown .......................................103
6.2 Turning on the antifreeze function ..................103
7 Checking and maintenance ...................................................................104
7.1 General instructions .........................................104
7.2 Maintenance operations to be performed ......104
7.3 Cleaning the 400 µm filter ................................104
7.4 Customising maintenance ...............................105
7.4.1 Maintenance message ........................................105
7.4.2 Contact details of the professional for After Sales
Support ................................................................106
8 Troubleshooting .....................................................................................108
8.1 Anti-hunting ......................................................108
8.2 Messages ...........................................................108
8.3 Message history ................................................110
8.4 Faults (Code type Lxx or Dxx) .........................111
8.4.1 Deletion of sensors from the memory in the
PCB .....................................................................114
8.5 Failure history ...................................................115
8.6 Parameter and input/output check (mode
tests) ..................................................................115
9 Spare parts ..............................................................................................121
9.1 General ..............................................................121
9.2 Spare parts ........................................................121
9.2.1 AWHP 6 MR ........................................................121
9.2.2 AWHP 8 MR ........................................................123
9.2.3 AWHP 11 - 16 .....................................................126
9.2.4 AWHP 22 - 27 .....................................................132
9.2.5 MIT ......................................................................135
Contents
424/09/2012 - 300027606-001-01

524/09/2012 - 300027606-001-01

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, 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.
¼ Signals a referral to other instructions or other pages in the
instructions.
1.1.2. Symbols used on the equipment
4Protective 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
AWHP MIT-IN iSystem 1. Introduction
24/09/2012 - 300027606-001-01 6

1.2 Abbreviations
4DHW: Domestic hot water
4PPS: Polypropylene hardly inflammable
4PCU: Primary Control Unit - PCB contoller for heat pump operation
4PSU: Parameter Storage Unit - Parameter storage for PCBs
PCU and SU
4SCU: Secondary Control Unit - DIEMATIC iSystem control panel
PCB
4SU: Safety Unit - Safety PCB
43WV: 3-way valve
4EVU: Power supply company
4MIT: Indoor module fitted with a DIEMATIC iSystem control panel
4HP: Heat pump
4EER: Frigorific efficiency ratio
4COP: Performance coefficient
1.3 General
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:
4Failure to abide by the instructions on using the appliance.
4Faulty or insufficient maintenance of the appliance.
4Failure to abide by the instructions on installing the appliance.
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:
4Read and follow the instructions given in the manuals provided
with the appliance.
4Carry out installation in compliance with the prevailing legislation
and standards.
4Perform the initial start up and carry out any checks necessary.
4Explain the installation to the user.
1. Introduction AWHP MIT-IN iSystem
724/09/2012 - 300027606-001-01

4If a maintenance is necessary, warn the user of the obligation to
check the appliance and maintain it in good working order.
4Give 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:
42006/95/EC Low Voltage Directive. Reference Standards:
EN60335-1 / EN60335-2-40.
42004/108/EC Electromagnetic Compatibility Directive. Generic
standards: EN1000-6-3 , EN 61000-6-1.
AWHP MIT-IN iSystem 1. Introduction
24/09/2012 - 300027606-001-01 8

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
4Any intervention on the appliance and heating
equipment must be carried out by a qualified
engineer.
4For a proper operating of the boiler, follow carefully
the instructions.
2. Safety instructions and recommendations AWHP MIT-IN iSystem
924/09/2012 - 300027606-001-01