DE DIETRICH AWHP MIT-IN User Manual

HPI

Air / water heat pump

AWHP MIT-IN iSystem

EN

User Guide

300027618-001-02

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 General ..................................................................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 ...........................15

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

1

09/01/13 - 300027618-001-02

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 ...........................................30

7 Energy savings .........................................................................................31

7.1 Energy savings ...................................................31

7.1.1 Energy-saving advice ............................................31

7.1.2 Room thermostat and settings ..............................31

7.2 Recommendations ..............................................31

8 Warranty ....................................................................................................33

8.1 General ................................................................33

8.2 Warranty terms ...................................................33

2

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3

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1 2

M002628-A

AWHP MIT-IN 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

4

~

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.

09/01/13 - 300027618-001-02

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

4

1. Introduction

1.2 Abbreviations

AWHP MIT-IN 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 MIT: Indoor module fitted with a DIEMATIC iSystem control panel

4 HP: Heat pump

4 EER: Frigorific efficiency ratio

4 COP: Performance coefficient

1.3 General

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.

5

09/01/13 - 300027618-001-02

AWHP MIT-IN 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.

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.

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

09/01/13 - 300027618-001-02

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.

6

1. Introduction AWHP MIT-IN iSystem

4 2004/108/EC Electromagnetic Compatibility Directive. Generic

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

7

09/01/13 - 300027618-001-02

AWHP MIT-IN 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.

09/01/13 - 300027618-001-02

8

M002616-A

bar

STD

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

b

v

AUTO

g

A

B

C

D

E

F

w

1

1
2

3. Description AWHP MIT-IN iSystem

3 Description

3.1 General description

The AWHP MIT-IN 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

9

09/01/13 - 300027618-001-02

L000200-A

L000201-A

L000198-A

bar

r

STD

(

'

t

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

C002696-A

p

b

AUTO

x

c

r

j

L

g

m

bar

STD

t

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

L000197-A

p

b

AUTO

x

c

r

j

M

g

m

AWHP MIT-IN iSystem 3. Description

A

B

C

D

E

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

F

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

n

>
(
’

?

f

STD

b

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

v

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

j

ESC

Back to the previous level

Back to the previous level without saving the
modifications made

t

Solar (If connected)

n

u

Manual reset

The solar load pump is running

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

09/01/13 - 300027618-001-02

The entire tank is reheated to the tank set point

The entire tank is reheated to the solar tank set point

10

L000199-A

bar

1

1

2

c

STD

t

v

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

M002620-A

p

b

w

AUTO

x

c

r

j

M

g

m

bar

STD

t

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

C002698-B

p

b

AUTO

x

c

r

j

M

g

m

bar

STD

t

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

C002708-A

p

b

AUTO

x

c

r

j

M

g

m

3. Description AWHP MIT-IN iSystem

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

Operating modes

n

p

b

w + p
w

AUTO

x

m

g

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

WINTER mode: Heating and domestic hot water working.

Forced cooling mode.

Cooling mode: Heating according to the time programme.

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

m

System pressure

n

bar

Manual mode

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.

l

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

11

09/01/13 - 300027618-001-02

bar

STD

t

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

C002707-A

p

b

AUTO

x

c

r

j

M

g

m

bar

1

1

2

c

STD

t

v

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

M002630-A

p

b

w

AUTO

x

c

r

j

M

g

m

bar

1

1

2

c

STD

t

v

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

M002632-A

p

b

w

AUTO

x

c

r

j

M

g

m

bar

1

1

2

c

STD

t

v

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

M002631-A

p

b

w

AUTO

x

c

r

j

M

g

m

AWHP MIT-IN iSystem 3. Description

Domestic Hot Water override

n

A bar is displayed when a DHW override is activated:

4 Flashing bar: Temporary override

4 Steady bar: Permanent override

Electrical back-up

n

G

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

Hydraulic additional heating

n

y

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

n

09/01/13 - 300027618-001-02

v

4 Steady symbol: The compressor is running.

4 Flashing symbol: The heat pump is required but the

compressor is off.

12

bar

STD

t

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

C002699-B

p

b

AUTO

x

c

r

j

M

g

m

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

AUTO

x

c

r

j

L

g

m

#MEASURES

#CHOICE TIME PROG.

#TIME PROGRAM
#SETTING
#TIME .DAY

a

C002220-B-04

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

AUTO

x

c

r

j

L

g

m

CURRENT PROG.B

CURRENT PROG.C

P2

P3

a

C002221-C-04

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

AUTO

x

c

r

j

L

g

m

CURRENT PROG.C

"Choice of the timeprogram
applied C"

P4

a

C002222-C-04

3. Description AWHP MIT-IN iSystem

Other information

n

r

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

w

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

M

The symbol is displayed when the pump is operating.

Name of the circuit for which the parameters are
displayed.

3.2.3. 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.

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

6. To confirm, press the rotary button.

To cancel, press key

h

.

13

09/01/13 - 300027618-001-02

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

AUTO

x

c

r

j

M

g

m

LUNDI 11:45

C002224-D-04

2x

AWHP MIT-IN iSystem 3. Description

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.

09/01/13 - 300027618-001-02

14

C002366-B

Français - Deutsch - English ­Italiano - Espanol - Nederlands

- Pycck - Polski - Türk -

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

x

c

r

g

m

ÿ

LANGUE FRANCAIS

C002286-C

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

AUTO

x

c

r

j

M

g

m

SUNDAY 11:45

C002219-D-04

4. Operating the appliance AWHP MIT-IN iSystem

4 Operating the appliance

4.1 Putting the appliance into operation

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

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

3. To confirm, press the rotary button.

4. The parameter TYPE displays. Select the type of thermodynamic
unit by turning the rotary button.

4.2 Reading out measured values

15

Indoor module

MIT-IN/E

MIT-IN/H

TYPE

MIT AWHP E FR

MIT AWHP H FR

Error during the start-up procedure:

4 No information is shown on the display:

Contact the professional who takes care of maintenance of the
appliance.

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

¼See chapter: "Messages", page 24.

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.

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

¼

the chapter: "Browsing in the menus", page 13.

09/01/13 - 300027618-001-02

AWHP MIT-IN iSystem 4. Operating the appliance

User level - Menu #MEASURES

Parameter Description Unit

OUTSIDE TEMP.

ROOMTEMP. A

ROOMTEMP. B

ROOMTEMP. C

TEMP.MIT

PRESSURE

WATER TEMP.

STOR.TANK.TEMP

(1)

SWIMMING P.T.B

(1)

SWIMMING P.T.C

(1)

OUTLET TEMP. B

(1)

OUTLET TEMP. C

(1)

SYSTEM TEMP.

T.DHW BOTTOM

TEMP.TANK AUX

(1)

DHW A TEMP.

TEMP.SOL.TANK

(1)

SOLAR.COLL.T.

SOLA.ENERGY

FLOWMETER

NB IMPULS.COMP

RUNTIME HP

IN 0-10V

(1)

SEQUENCE

CTRL Software control number (SCU)

DT INSTALLATION

ELEC.ENERGY

ELEC.ENERG.Y1

(1)

ELEC.ENERG.Y2

(1)

THERM.ENERGY

(1)

THERM.ENERG.Y1

(1)

THERM.ENERG.Y2

(1)

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

Outside temperature °C

(1)

Room temperature of circuit A °C

(1)

Room temperature of circuit B °C

(1)

Room temperature of circuit C °C

Inside module flow sensor measurement °C

Water pressure in the installation bar

(1)

Water temperature in the DHW tank °C

Water temperature in the storage tank °C

Water temperature of the swimming pool on circuit B °C

Water temperature of the swimming pool on circuit C °C

Temperature of the flow water in circuit B °C

Temperature of the flow water in circuit C °C

(1)

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

(1)

Water temperature in the bottom of the DHW tank °C

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

(1)

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

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

(1)

Solar panel temperature (TC) °C

(1)

Solar energy accumulated in the tank kWh

Plate exchanger flow rate l/min

Number of heat pump start-ups

Number of hours’ operation of the heat pump compressor h

Voltage at input 0-10 V V

Control system sequence

Installation temperature delta K

(1)

Total electrical energy consumed kWh

Total electrical energy consumed in the previous year kWh

Total electrical energy consumed two years ago kWh

Total thermal energy yield kWh

Total thermal energy yield in the previous year kWh

Total thermal energy yield two years ago kWh

09/01/13 - 300027618-001-02

16

MODE

C002266-A

4. Operating the appliance AWHP MIT-IN iSystem

4.3 Changing the settings

4.3.1. Setting the set point temperatures

To set the various heating, DHW and swimming pool temperatures,
proceed as follows:

1. Press the C key.

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

3. To modify the parameter, press the rotary button.
To go back to the previous display, press the key j.

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

5. To confirm, press the rotary button.

To cancel, press key

h

.

Menu C

Parameter Adjustment range Description Factory setting

DAY TEMP. A

NIGHT TEMP. A

ROOMTEM.COOL A

DAY TEMP. B

NIGHT TEMP. B

(2)

(2)

ROOMTEM.COOL B

DAY TEMP. C

NIGHT TEMP. C

(2)

(2)

ROOMTEM.COOL C

WATER TEMP.

WATER T.NIGHT

TEMP.TANK AUX

(2)

(2)

(2)

WATER T.NIGHTAUX

DHW A TEMP.

WATER T.NIGHT.A

TEMP.SOL.TANK

SWIMMING P.T.B

SWIMMING P.T.C

(1) The parameter is only displayed if the corresponding circuit can handle cooling.
(2) The parameter is only displayed for the options, circuits or sensors actually connected.

(2)

(2)

(2)

(2)

(2)

5 to 30 °C Desired room temperature in comfort periods on circuit A 20 °C

5 to 30 °C Desired room temperature in reduced periods on circuit A 16 °C

(1) (2)

22 to 30 °C Desired room temperature set point in cooling mode 25 °C

5 to 30 °C Desired room temperature in comfort periods on circuit B 20 °C

5 to 30 °C Desired room temperature in reduced periods on circuit B 16 °C

(2) (1)

22 to 30 °C Desired room temperature set point in cooling mode 25 °C

5 to 30 °C Desired room temperature in comfort periods on circuit C 20 °C

5 to 30 °C Desired room temperature in reduced periods on circuit C 16 °C

(2) (1)

22 to 30 °C Desired room temperature set point in cooling mode 25 °C

10 to 65 °C Desired domestic hot water temperature in the DHW circuit 55 °C

Set tank temperature, night programme

Desired domestic hot water temperature in the auxiliary
circuit

Desired domestic hot water temperature in the auxiliary
circuit for the night program

(2)

10 to 80 °C

10 to 80 °C

10 to 80 °C

10 to 80 °C Desired domestic hot water temperature in circuit A 55 °C

10 to 80 °C

Desired domestic hot water temperature in the tank
connected to circuit A for the night program

10 to 80 °C Temperature of the hot water produced by solar power (TS) 55 °C

0 to 39 °C Desired temperature for swimming pool B 20 °C

0 to 39 °C Desired temperature for swimming pool C 20 °C

10 °C

55 °C

10 °C

10 °C

17

09/01/13 - 300027618-001-02

MODE

C002267-A

AWHP MIT-IN iSystem 4. Operating the appliance

4.3.2. Selecting the operating mode

To select an operating mode, proceed as follows:

1. Press the MODE key.

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

3. To modify the parameter, press the rotary button.
To go back to the previous display, press the key j.

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

5. To confirm, press the rotary button.

To cancel, press key h.

Menu MODE

Parameter Adjustment range Description Factory setting

AUTOMATIQUE

DAY

NIGHT

HOLIDAYS

SUMMER

COLD

MANUEL

FORCE AUTO

(1) The start and end days and the number of days are calculated in relation to each other.
(2) The parameter is only displayed if a room sensor is connected.

7/7, xx:xx Comfort mode is forced until the time indicated or all the time (7/7). Present time + 1

7/7, xx:xx Reduced mode is forced until the time indicated or all the time

7/7, 1 to 365 The antifreeze mode is active on all boiler circuits.

(2)

ON / OFF An operating mode override is activated on the remote control

The comfort ranges are determined by the timer programme.

(7/7).

Number of days’ holiday: xx
heating OFF: xx:xx
Restarting: xx:xx

The heating is off.
Domestic hot water continues to be produced.

Cooling mode is forced.

The generator operates according to the set point setting. All of
the pumps operate. Option of setting the set point by simply
turning the rotary button.

(option).
To force all circuits to run on AUTOMATIQUE mode, select ON.

(1)

(1)

(1)

hour

Present time + 1
hour

Present date + 1
day

09/01/13 - 300027618-001-02

18

MODE

C002268-A

bar

1

1

2

2

r

c

STD

(

'

t

v

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

p

b

AUTO

x

c

r

j

M

g

m

SUNDAY 11:45

C002219-D-04

4. Operating the appliance AWHP MIT-IN iSystem

4.3.3. Forcing domestic hot water production

To force domestic hot water production, proceed as follows:

1. Press the r key.

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

3. To modify the parameter, press the rotary button.
To go back to the previous display, press the key j.

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

5. To confirm, press the rotary button.

To cancel, press key h.

Menu r

Parameter Description Factory setting

AUTOMATIQUE

COMFORT

The domestic hot water comfort ranges are determined by the timer programme.

Domestic hot water comfort mode is forced until the time indicated or all the time (7/7). Present time + 1 hour

4.3.4. Setting the contrast and lighting on the

display

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

2. Select the menu #SETTING.

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

¼

the chapter: "Browsing in the menus", page 13.

3. Set the following parameters:

User level - Menu #SETTING

Parameter Adjustment range Description Factory setting Customer setting

CONTRAST DISP.

BACK LIGHT COMFORT

ECO

Adjusting the display contrast.

The screen is illuminated continuously in
daytime periods.

The screen is illuminated for 2 minutes
whenever pressed.

ECO

19

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1

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2

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STD

(

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

p

b

AUTO

x

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M

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SUNDAY 11:45

C002219-D-04

bar

1

1

2

2

r

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STD

(

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

p

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AUTO

x

c

r

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M

g

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SUNDAY 11:45

C002219-D-04

AWHP MIT-IN iSystem

4.3.5. Setting the time and date

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

2. Select the menu #TIME .DAY.

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

¼

the chapter: "Browsing in the menus", page 13.

3. Set the following parameters:

4. Operating the appliance

User level - Menu #TIME .DAY

(1)

Parameter Adjustment range Description Factory setting Customer setting

HOURS

MINUTE

DAY

DATE

MONTH

YEAR

SUM. TIME: AUTO

0 to 23 Hours setting

0 to 59 Minutes setting

Monday to Sunday Setting the day of the week

1 to 31 Day setting

January to December Month setting

2008 to 2099 Year setting

automatic switch to summer time on the last Sunday

AUTO

in March and back to winter time on the last Sunday
in October.

MANU

for countries where the time change is done on
other dates or is not in use.

(1) According to the configuration

4.3.6. Selecting a timer programme

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

2. Select the menu #CHOICE TIME PROG..

09/01/13 - 300027618-001-02

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

¼

the chapter: "Browsing in the menus", page 13.

3. To select the desired parameter.

4. Assign the desired timer programme (P1 to P4) to the circuit with
the rotary button.

20

bar

1

1

2

2

r

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STD

(

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

p

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x

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M

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SUNDAY 11:45

C002219-D-04

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1

1

2

2

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STD

(

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

p

b

AUTO

x

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r

j

L

g

m

PROG P2 C
Mo Tu We Th Fr Sa Su
"Display of the timeprogram.
To continuepush on the button"

a

C002228-B-04

4. Operating the appliance

AWHP MIT-IN iSystem

User level - Menu #CHOICE TIME PROG.

Parameter Adjustment range Description

CURRENT PROG.A

P1 / P2 / P3 / P4 Comfort programme activated

(Circuit A)

CURRENT PROG.B

P1 / P2 / P3 / P4 Comfort programme activated

(Circuit B)

CURRENT PROG.C

P1 / P2 / P3 / P4 Comfort programme activated

(Circuit C)

4.3.7. Customising a timer programme

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

2. Select the menu #TIME PROGRAM.

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

¼

the chapter: "Browsing in the menus", page 13.

3. To select the desired parameter.

User level - Menu #TIME PROGRAM

Parameter Time schedule Description

TIME PROG.A PROG P2 A

Timer programme for circuit A

PROG P3 A
PROG P4 A

TIME PROG.B PROG P2 B

Timer programme for circuit B

PROG P3 B
PROG P4 B

TIME PROG.C PROG P2 C

Timer programme for circuit C

PROG P3 C
PROG P4 C

TIME PROG.DHW

TIME PROG.AUX

EVU TIMER PROG.

DHW circuit timer programme

Auxiliary circuit timer programme

EVU power cut off timer program

4. To select a timer programme to be modified.

To select to days for which the timer programme is to be

5.
modified:
Turn the rotary button to the left until you reach the day desired.
To confirm, press the rotary button.

21

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AUTO

x

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j

L

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PROG P2 C
Mo Tu

We Th Fr Sa Su

"Select the days to
program"

a

C002229-C-04

bar

1

1

2

2

r

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STD

(

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t

v

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

p

b

AUTO

x

c

r

j

L

g

m

PROG P2 C
Mo Tu

We Th Fr Sa Su

Set the time program.

a

C002230-E-04

06:00

06:00

AWHP MIT-IN iSystem 4. Operating the appliance

6.b: Day selection
Press key b / v until the symbol b is displayed.
Turn the rotary button to the right to select the day(s) desired.

: Cancelling the day selection

v

Press key b / v until the symbol v is displayed.
Turn the rotary button to the right to cancel selection of the relevant

day(s).

7. When the days desired for the programme have been selected,
press the rotary button to confirm.

To define the timer ranges for the comfort mode and reduced

8.
mode:
Turn the rotary button to the left until 0:00 is displayed. The first
segment of the graphic bar for the timer programme flashes.

9.b: Comfort mode selection
Press key b / v until the symbol b is displayed.
To select a comfort time range, turn the rotary button to the right.

: Reduced mode selection

v

Press key b / v until the symbol v is displayed.
To select a reduced time range, turn the rotary button to the right.

10.When the times for the comfort mode have been selected, press
the rotary button to confirm.

User level - Menu #TIME PROGRAM

TIME PROG.A

Day Comfort periods / Filling enabled:

Monday 6:00 to 22:00

Tuesday 6:00 to 22:00

Wednesday 6:00 to 22:00

Thursday 6:00 to 22:00

Friday 6:00 to 22:00

Saturday 6:00 to 22:00

Sunday 6:00 to 22:00

TIME PROG.B

Monday 6:00 to 22:00

Tuesday 6:00 to 22:00

Wednesday 6:00 to 22:00

Thursday 6:00 to 22:00

Friday 6:00 to 22:00

Saturday 6:00 to 22:00

Sunday 6:00 to 22:00

TIME PROG.C

Monday 6:00 to 22:00

Tuesday 6:00 to 22:00

Wednesday 6:00 to 22:00

Thursday 6:00 to 22:00

Friday 6:00 to 22:00

Saturday 6:00 to 22:00

Sunday 6:00 to 22:00

P1
_______________

P2 _______________ P3 _______________ P4 _______________

09/01/13 - 300027618-001-02

22

4. Operating the appliance

User level - Menu #TIME PROGRAM

TIME PROG.DHW

TIME PROG.AUX

EVU TIMER PROG.

Day Comfort periods / Filling enabled:

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

P1
_______________

AWHP MIT-IN iSystem

P2 _______________ P3 _______________ P4 _______________

4.4 Installation shutdown

If the central heating system is not used for a long period, we
recommend switching the appliance off.

To stop the inside module, use the J/K ON/OFF switch and cut the
power supply on the house’s junction box.

To shut down the outside module, switch off the power supply on the
junction box inside the house.

CAUTION

Antifreeze protection is no longer guaranteed
automatically if the mains supply is switched off.

4.5 Turning on the antifreeze function

Put the heat pump into HOLIDAYS mode. ¼See chapter:
"Selecting the operating mode", page 18

23

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AWHP MIT-IN iSystem 5. Troubleshooting

5 Troubleshooting

5.1 Anti-hunting

When the heat pump is in "anti-short cycle" operating mode, the
symbol "?" flashes. This is a normal operating mode. When the restart
temperature is reached, operation will be guaranteed.

1. Press the "?" key.
The message Operation assured when the restart temperature
will be reached is displayed. When the restart temperature is
reached, operation will be guaranteed.

This message is not an error message but an item of
information.

5.2 Messages

Code

Messages Description Checking / solution

B00 BL.PSU ERROR

B02 BL.FLOW S.

B08 BL.BL INPUT OPEN

In the case of failure, the control panel displays a message and a
corresponding code.

1. Make a note of the code displayed.
The code is important for the correct and rapid diagnosis of the
type of failure and for any technical assistance that may be
needed.

2. Switch off heat pump and start up again.
The heat pump starts up again autonomously when the cause of
the failure has been lifted.

3. If the code is displayed again, correct the problem by following the
instructions in the table below:

The PSU PCB is incorrectly
configured

The MIT flow sensor is short
circuited or on an open circuit.

The BL inlet on the PCU PCB
terminal block is open. No
antifreeze protection.

Parameter error on the PSU PCB

4 Contact the professional who takes care of

maintenance of the appliance

Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

The contact connected to the BL inlet is open.

4 Contact the professional who takes care of

maintenance of the appliance.

Parameter error.

09/01/13 - 300027618-001-02

4 Contact the professional who takes care of

maintenance of the appliance.

Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

24

5. Troubleshooting AWHP MIT-IN iSystem

Code Messages Description Checking / solution

B09 BL.BL INPUT OPEN

The BL inlet on the PCU PCB
terminal block is open. Antifreeze
protection.

The contact connected to the BL inlet is open.

4 Contact the professional who takes care of

maintenance of the appliance.

Parameter error.

4 Contact the professional who takes care of

maintenance of the appliance.

Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

B10 BL.GROUP.EXT.

Failure outside unit.

4 Contact the professional who takes care of

maintenance of the appliance.

B11 BL.COM SCU

B12 BL.WATER MIS.

B13 BL.DHW. S.

Communication error with the
SCU PCB.

The water pressure is lower than
0,5 bar

The DHW tank sensor is
disconnected or short circuited

4 Contact the professional who takes care of

maintenance of the appliance.

Not enough water in the circuit.

4 Top up the installation with water.

Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

B14 BL.OUTSIDE.S

The outside temperature sensor is
disconnected or short circuited.

Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

B17 BL.PCU ERROR

The parameters saved on the
PCU PCB are impaired.

Parameter error on the PCU PCB.

4 Contact the professional who takes care of

maintenance of the appliance.

B18 BL.BAD PSU

The PSU PCB is not recognised Wrong PSU PCB for this heat pump.

B19 BL.NO CONFIG

B39 BL.FLOW

B40 BL.FLOW.STOP

B41 BL.COM.CPT.kWh

B50 BL.S.DEP.CPT.kWh

B51 BL.S.RET.CPT.kWh

B52 BL.CPT.kWh.ELEC1

B53 BL.CPT.kWh.ELEC2

B54 BL.CPT.kWh.THERM

4 Contact the professional who takes care of

maintenance of the appliance.

The inside module has not been
configured.

The PSU PCB has been changed.

4 Contact the professional who takes care of

maintenance of the appliance.

Low flow rate.

4 Contact the professional who takes care of

maintenance of the appliance.

Flow rate fault.

4 Contact the professional who takes care of

maintenance of the appliance.

Communication error with the
energy meter option PCB.

Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

Energy meter flow sensor error. Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

Energy meter return sensor error. Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

Electical meter ELEC 1 error. Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

Electical meter ELEC 2 error. Bad connection.

4 Contact the professional who takes care of

maintenance of the appliance.

Thermal meter error. Bad connection.

B55 BL.FLOW

25

Low flow rate.

4 Contact the professional who takes care of

maintenance of the appliance.

4 Contact the professional who takes care of

maintenance of the appliance.

09/01/13 - 300027618-001-02

bar

1

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2

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p

b

AUTO

x

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SUNDAY 11:45

TEMP. : 68°

PCU. COM. FAIL. D27

C002604-B-04

bar

1

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2

2

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x

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M

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SUNDAY 11:45

TEMP. : 68°

PCU COM.FAIL D27

C002302-D-04

AWHP MIT-IN iSystem 5. Troubleshooting

Code Messages Description Checking / solution

M04 REVISION

A service is required. The date programmed for the service has been reached.

4 Service the heat pump.

4 To clear the inspection, programme another date in

the menu #REVISION or set the parameter REVISION
TYPE to OFF.

FL.DRY.B XX DAYS

FL.DRY.C XX DAYS

FL.DRY.B+C XX DAYS

Floor drying is active.
XX DAYS = Number of days’ floor

drying remaining.

Floor drying is underway. Heating on the circuits not
concerned is shut down.

4 Wait for the number of days shown to change to 0.

4 Set the parameter SCREED DRYING to OFF.

M23 CHANGE OUTSI.S

The outside temperature sensor is

Change the outside radio temperature sensor.

defective.

5.3 Faults (Code type Lxx or Dxx)

1. Make a note of the code displayed.
The code is important for the correct and rapid diagnosis of the
type of failure and for any technical assistance that may be
needed.

2. Press the t key. If the code is displayed again, switch off the boiler
and then switch it back on.

09/01/13 - 300027618-001-02

3. Press the ? key. Follow the instructions displayed to solve the
problem.

4. Consult the meaning of the codes in the table below:

26

5. Troubleshooting AWHP MIT-IN iSystem

Code Faults Cause

of the
fault

D03

OUTL S.B FAIL.

D04

OUTL S.C FAIL.

D05 OUTSI.S.FAIL.

D07 SYST.SENS.FAIL.

D09 DHW S.FAILURE

D11

ROOM S.A FAIL.

D12

ROOM S.B FAIL.

D13

ROOM S.C FAIL.

D14 MC COM.FAIL

SCU Circuit B flow sensor fault

SCU Outside temperature sensor fault

SCU System sensor fault Bad connection

SCU Domestic hot water sensor fault

SCU A room temperature sensor fault

SCU Break in communication between the SCU

Description Checking / solution

Bad connection

Circuit C flow sensor fault
Remarks:

The circuit pump is running.
The 3-way valve motor on the circuit is no

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

longer powered and can be adjusted
manually.

Bad connection

Remarks:
The set point is equal to the MAX MIT
parameter.
The valve setting is no longer ensured but

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

monitoring the maximum temperature of the
circuit after the valve is ensured.
Valves may be manually operated.
Reheating the domestic hot water remains
ensured.

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

Bad connection

Remarks:
Heating of domestic hot water is no longer
ensured.
The load pump operates.

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

The tank load temperature is equal to the
temperature of the inside module.

Bad connection
B room temperature sensor fault
C room temperature sensor fault

Note:
The circuit concerned operates without any

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

influence from the room sensor.

Bad connection
PCB and the radio module

4 Check the link and the connectors

Boiler module failure

D15 ST.TANK S.FAIL

D16

SWIM.P.B. S.FAIL

D16

SWIM.P.C. S.FAIL

D17 DHW 2 S.FAIL

D18 ST.TANK S.FAIL

27

4 Change the boiler module

SCU Storage tank sensor fault

Note:
The hot water storage tank reheating
operation is no longer assured.

SCU Swimming pool sensor fault circuit B

Swimming pool sensor fault circuit C
Note:

Swimming pool reheating is always done
during the circuit’s comfort period.

Bad connection

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

Bad connection

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

SCU Sensor fault tank 2 Bad connection

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

SCU Solar tank sensor fault Bad connection

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

09/01/13 - 300027618-001-02

AWHP MIT-IN iSystem 5. Troubleshooting

Code Faults Cause

of the
fault

D19 SOL.COL.S.FAIL

D20 SOL COM.FAIL

D27 PCU COM. FAIL

D32 5 RESET:ON/OFF

D37 TA-S SHORT-CIR

D38 TA-S DISCONNEC

SCU Header sensor fault Bad connection

SCU Interruption in communication between the SCU PCB and the solar control system

SCU Communication failure between the SCU and PCU PCBs

SCU 5 resets done in less than an hour

SCU The Titan Active System® is short-circuited

SCU The Titan Active System® is on an open circuit

Description Checking / solution

Sensor fault

4 Contact the professional who takes

care of maintenance of the appliance

4 Contact the professional who takes care of maintenance of the appliance

4 Contact the professional who takes care of maintenance of the appliance

4 Switch off heat pump and start up again

4 Check that the connection cable between the SCU PCB and the anode is not short-

circuited

4 Check that the anode is not short-circuited

Remarks:
Domestic hot water production has stopped but can nonetheless be restarted using key
r.
The tank is no longer protected.
If a tank without Titan Active System® is connected to the heat pump, check that the
TAS simulation connector (delivered in package AD212) is fitted to the sensor board.

D99 DEF.BAD PCU

L33 FLOW FAIL.

4 Check that the connection cable between the SCU PCB and the anode is not severed

4 Check that the anode is not broken

Remarks:
Domestic hot water production has stopped but can nonetheless be restarted using key
r.
The tank is no longer protected.
If a tank without Titan Active System® is connected to the heat pump, check that the
TAS simulation connector (delivered in package AD212) is fitted to the sensor board.

SCU The SCU software version does not recognise the PCU connected

4 Contact the professional who takes care of maintenance of the appliance

The flow rate is lower than the threshold defined by the MIN.STOP.FLOW. parameter

4 Contact the professional who takes care of maintenance of the appliance

09/01/13 - 300027618-001-02

28

6. Technical specifications AWHP MIT-IN iSystem

6 Technical specifications

6.1 Technical specifications

6.1.1. Electricity supply

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

6.1.2. Heat pump

Conditions of use:

4 Limit operating temperatures in Hot mode:

- Water: +18 °C / +55 °C

- Outside air:

-15 °C / +35 °C (AWHP 6 MR, 8 MR)

-20 °C / +35 °C (AWHP 11-27)

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

AWHP

Calorific output ­A7/W35

COP hot - A7/
W35

Absorbed
electrical power -

A7/W35

Nominal
amperage - A7/

W35

Calorific output ­A2/W35

COP hot - A2/
W35

Absorbed
electrical power -

A2/W35

(1) Hot mode: Outside air temperature +7 °C, Water temperature at the outlet +35 °C. Performances in line with EN 14511-2.
(2) Hot mode: Outside air temperature +2 °C, Water temperature at the outlet +35 °C. Performances in line with EN 14511-2.
(3) Cooling mode: Outside air temperature +35 °C, Water temperature at the outlet +18 °C. Performances in line with EN 14511-2
(4) 5 m from the appliance, free field.
(5) Test conducted in accordance with the standard NF EN 12102

(1)

(1)

(1)

(1)

(2)

(2)

(2)

6 MR 8 MR 11 MR 11 TR 14 MR 14 TR 16 MR 16 TR 22 TR 27 TR

kW 6.0 8.5 10.9 10.9 13.7 13.7 15.7 15.7 19.4 24.4

4.00 4.10 4.23 4.23 4.03 4.03 3.90 3.90 3.94 3.90

kWe 1.5 2.1 2.6 2.6 3.4 3.4 4.03 4.03 4.9 6.3

A 6.8 9.2 11.2 6.7 14.8 8.8 17.6 10.1 12.3 15.6

kW 4.4 5.9 7.6 7.6 10.3 10.3 10.4 10.4 11.62 14.7

3.12 3.12 3.10 3.10 3.10 3.10 3.10 3.10 3.01 3.10

kWe 1.41 1.89 2.45 2.45 3.32 3.32 3.35 3.35 3.86 4.74

29

09/01/13 - 300027618-001-02

AWHP MIT-IN iSystem 6. Technical specifications

AWHP 6 MR 8 MR 11 MR 11 TR 14 MR 14 TR 16 MR 16 TR 22 TR 27 TR

Nominal

A 6.1 8.2 10.7 6.2 14.5 8.3 14.6 8.4 9.7 11.8

amperage - A2/

(2)

W35

(3)

Cooling output

(3)

EER

Absorbed

kW 5.4 7.9 10.48 10.48 11.74 11.74 11.74 11.74 17.65 22.20

3.80 3.99 4.68 4.68 4.43 4.43 4.43 4.43 3.8 3.8

kWe 1.4 2.0 2.24 2.24 2.65 2.65 2.65 2.65 4.65 5.84

electrical power

(3)

Sound pressure

(4)

Nominal water

dB(A) 36 36 40 40 41 41 41 41 45 45

1.04 1.47 1.88 1.88 2.34 2.34 2.67 2.67 3.8 4.6

m3/h

flow (ΔT = 5K)

Manometric

mbar 618 493 393 393 282 282 213 213 - ­height available
at nominal flow
rate

Nominal air flow

2100 3000 6000 6000 6000 6000 6000 6000 8400 8400

m3/h
rate

Power voltage of

V 230 V~ 230 V~ 230 V~ 400 V3~ 230 V~ 400 V3~ 230 V~ 400 V3~ 400 V3~ 400 V3~
the outdoor unit

(5)

Sound output

R410A

dB(A) 63.7 65.2 65.4 65.4 66.8 66.8 69.4 69.4 73.8 75

kg 2.5 3.6 5 5 5 5 5 5 7.1 7.7
refrigerant

Refrigeration
connection

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

3/8-1

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

(Liquid-Gas)

Max pre-loaded

m 30 30 30 30 30 30 30 30 30 30
length

Weight (empty) -

kg 45 75 121 135 116 130 116 130 135 141
outside unit

(1) Hot mode: Outside air temperature +7 °C, Water temperature at the outlet +35 °C. Performances in line with EN 14511-2.
(2) Hot mode: Outside air temperature +2 °C, Water temperature at the outlet +35 °C. Performances in line with EN 14511-2.
(3) Cooling mode: Outside air temperature +35 °C, Water temperature at the outlet +18 °C. Performances in line with EN 14511-2
(4) 5 m from the appliance, free field.
(5) Test conducted in accordance with the standard NF EN 12102

6.1.3. 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

09/01/13 - 300027618-001-02

30

7. Energy savings

7 Energy savings

7.1 Energy savings

AWHP MIT-IN iSystem

This chapter contains:

4 Energy-saving advice

4 Advice on setting the room thermostat correctly

7.1.1. Energy-saving advice

4 Do not block ventilation outlets.

4 Install reflective panels behind the radiators to prevent heat

losses.

4 Do not cover the radiators. Do not hang curtains in front of the

radiators.

4 Insulate the pipes in rooms that are not heated (cellars and lofts).

4 Close the radiators in rooms not in use.

4 Do not run hot (or cold) water pointlessly.

4 Install a water-saving shower head to save up to 40 % energy.

4 Take showers rather than baths. A bath consumes twice as much

water and energy.

7.2 Recommendations

7.1.2. Room thermostat and settings

4 A modulating thermostat, possibly in combination with

thermostatic valve radiators, saves energy and offers
considerable comfort. This combination allows you to set the
temperature on each flow. In the room in which the room
thermostat is installed, do not fit thermostatic valve radiators.

4 Lower the thermostat to approximately 16°C at night or when you

are absent. This reduces heating costs and energy consumption.

4 Lower the room thermostat when you air the rooms.

4 When setting an hourly programmable thermostat, keep in mind

the days you are absent or on vacation.

The remote control is available in the following versions:

4 Wire

4 Radio

31

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AWHP MIT-IN iSystem 7. Energy savings

The setting of the control panel and/or of the remote control has a
considerable influence on energy consumption.

A few tips:

4 In the room in which the room thermostat is installed, it’s advised

not to use thermostatic valve radiators. If a thermostatic valve is
used the valve must be fully opened.

4 Completely closing and opening thermostatic valve radiators

causes undesirable temperature fluctuations. Open and close
thermostatic valves in small steps.

4 Lower the temperature to around 20°C. This reduces heating costs

and energy consumption.

4 Lower the temperature when you air the rooms.

4 When setting a time schedule , bear days when you are absent

and holidays in mind.

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32

8. Warranty

8 Warranty

8.1 General

8.2 Warranty terms

AWHP MIT-IN iSystem

You have just purchased one of our appliances and we thank you for
the trust you have placed in our products.

Please note that your appliance will provide good service for a longer
period of time if it is regularly checked and maintained.

Your fitter and our customer support network are at your disposal at
all times.

The following provisions are not exclusive of the buyer being able
benefit from the legal provisions applicable regarding hidden defects
in the buyer’s country.

Starting from the purchase date shown on the original fitter’s invoice,
your appliance has a contractual guarantee against any
manufacturing defect.

The length of the guarantee is mentioned in the price catalogue.
The manufacturer is not liable for any improper use of the appliance
or failure to maintain or install the unit correctly (the user shall take
care to ensure that the system is installed by a qualified engineer).

In particular, the manufacturer shall not be held responsible for any
damage, loss or injury caused by installations which do not comply
with the following:

4 applicable local laws and regulations,

4 specific requirements relating to the installation, such as national

and/or local regulations,

4 the manufacturer’s instructions, in particular those relating to the

regular maintenance of the unit,

4 the rules of the profession.

The warranty is limited to the exchange or repair of such parts as have
been recognised to be faulty by our technical department and does
not cover labour, travel and carriage costs.

The warranty shall not apply to the replacement or repair of parts
damaged by normal wear and tear, negligence, repairs by unqualified
parties, faulty or insufficient monitoring and maintenance, faulty
power supply or the use of unsuitable fuel.

33

Sub-assemblies such as motors, pumps, electric valves etc. are
guaranteed only if they have never been dismantled.

The legislation laid down by european directive 99/44/EEC,
transposed by legislative decree No. 24 of 2 February 2002 published
in O.J. No. 57 of 8 March 2002, continues to apply.

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AWHP MIT-IN iSystem 8. Warranty

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34

AD001-AG

DUEDI S.r.l.

www.duediclima.it

Distributore Ufficiale Esclusivo

De Dietrich-Thermique Italia

Via Passatore, 12 - 12010
San Defendente di Cervasca
CUNEO

[phone]
[phone]
[e-mail]

IT

DE DIETRICH THERMIQUE Iberia S.L.U.

DE DIETRICH THERMIQUE S.A.S

www.dedietrich-calefaccion.es

Av. Princep d’Astúries 43-45

08012 BARCELONA

[phone]
[phone]

ES

129164, Россия, г. Москва

Зубарев переулок, д. 15/1

Бизнес-центр «Чайка Плаза»,

офис 309

[phone]

M001476-C

R410AR410A

300027618- 001-02

DEDIETRICH THERMIQUE
57,ruedelaGareF-67580MERTZWILLER-BP 30

© Copyright
All technical and technological information contained in these technical instructions,
as well as any drawings and technical descriptions supplied, remain our property
and shall not be multiplied without our prior consent in writing.

09/01/13