DE DIETRICH MIT-II-E, MIT-II-H, MIT-EP, MIT-HP User Manual

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Control panel

MIT-II/E - MIT-II/H MIT/EP - MIT/HP QUADROPAC DUP 500

User Guide

300015090-001-L

Contents

1 Used symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2 Important recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.1 Electromechanical components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.3 Keys accessible when the flap is closed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.4 Keys accessible when the flap is open. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.5 Operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

4 Heating and domestic hot water temperature setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.1 Heating temperature setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.2 DHW set temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.1 Selecting a programme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.2 Hot water programme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.3 Auxiliary programme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.4 Customising the programmes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.5 Resetting the programmes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

6 "User" settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

6.1 Table of "User" setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

6.2 Customising the programmes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

6.3 Miscellaneous settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

6.4 Setting the time and the date - Summer time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

7 Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

8 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

8.1 Maintenance contract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

8.2 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

9 Diagnosing breakdowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

Congratulations on choosing a De Dietrich product, a product of quality. We strongly recommend that you read the following instructions in order to guarantee the optimal operation of your appliance. We are sure that you will not be disappointed and that it will satisfy all of your expectations.

1 Used symbols

Caution danger



Risk of injury and damage to equipment. Attention must be paid to the warnings on safety of persons and equipment

Specific information



Information must be kept in mind to maintain comfort

Refer to another manual or other pages in this instruction

manual

DHW: Domestic hot water

MIT: Indoor module fitted with a Diematic 3 control panel

HP or PAC: Heat pump.

2 Important recommendations

For a proper operating of the boiler, follow carefully the



instructions.

Any intervention on the appliance and heating equipment



must be carried out by a qualified technician.

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 fitter).

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

3 Control panel

3.1 Electromechanical components

0 2 4 6 8 1012141618202224

SUNDAY

bar

1. Main ON/OFF switch

To take advantage of the pump cleaning function, do not switch off the appliance in summer. Use the Summer mode for the desired heating shutdown period.

See: Operating mode.

If a remote control CDI 2 is connected, it will have no display when the general switch is in the off position

2. Pressure gauge

* Depending on the model of the appliance, the pressure gauge is manual (dial display) or automatic (pictogram display).

3. Alarm indicator



C000142_00

-04

2*1

bar

- Red indicator: The PAC is safe

- Green indicator: normal operation

- Red control light is flashing: Sensor fault

4. Reset button

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

3.2 Display

0 2 4 6 8 1012141618202224

1 Text and numerical display 2 Graphic bar displaying the programme on circuit A or B (in

zone 9) 3 Light area: Nighttime period 4 Dark area: Daytime period 5 Flashing cursor showing the current time 6 Number display (current time, adjusted values, parameters,

etc.) 7 Active programme display, P1, P2, P3, P4

E: Summer mode activated - heating OFF 8 Flashing arrows when the

adjust the displayed parameter

9 Circuit operation symbols

Opening the 3-way valve

Closing the 3-way valve

Displayed circuit pump on

A, B Name of the circuit displayed

10 Symbol displayed above the active operating mode

or  keys should be used to

SUNDAY

bar

3 4 5 6 7

91011

11 Symbols indicating that the following inputs/outputs are

D X



 #

D E X



active ROE-II - ROE+ - SOLO - NAPO - ROI+ - ROE-H

PAC is operating in Hot or Cold mode

PAC is operating in Hot mode with additional electrical heating at stage 1

PAC is operating in Hot mode with additional electrical heating at stage 2

Additional electrical heating operating, stage 1. PAC off

Additional electrical heating operating, stage 2. PAC off

DHW production pending with the thermodynamic unit

Forced "summer" condition

ROE+ TH

PAC is operating in Hot mode with 1 compressor

PAC is operating in Hot mode with 2 compressor

PAC is operating in Hot mode with 2 compressors and 1 backup provision

PAC is operating in Hot mode with 2 compressors and 2 backup provision

Additional electrical heating operating, stage 1. PAC off

Additional electrical heating operating, stage 2. PAC off

DHW production pending with the thermodynamic unit



Forced "summer" condition

Water pressure display, user interface

Insufficient pressure: add water (0 - 0.5 bar)



Addition of water recommended (0.5 - 1 bar)

Pressure correct (1 - 2 bar)

Too much pressure (> 2 bar)



14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

3.3 Keys accessible when the flap is closed

024681012141618202224

SUNDAY

Temperature setting keys

2% 2$ 2

/



Daytime temperature

Nighttime temperature

Domestic hot water temperature

Is used to adjust the selected temperature

When one of these keys is pressed, the active time programme corresponding to the circuit is displayed in the graphic bar

3.4 Keys accessible when the flap is open

024681012141618202224

SUNDAY

C000142_02

Operating mode selection keys

AUTO

$ . 

-04

Heating according to the time programme

Forced operation at Daytime temperature

Forced operation at Nighttime temperature

Antifreeze mode

Tank load enabled mode

STANDARD

Key for access to setting and measurements

J I H

Manual "Summer" shutdown key

"Standard" programme key

Reset of all time programmes.

Fitter settings access key

Page scrolling

Line scrolling

Return to the previous line

C000142_03

Programming keys

A.B

PROG

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

-04

Input (per 1/2 hour) of the Daytime Temperature period

Input (per 1/2 hour) of the Nighttime Temperature period

Return key

Circuit display selection key

Active heating programme selection key (P1, P2, P3 or P4)

3.5 Operating mode

0 2 4 6 8 1012141618202224

SUNDAY

Select the operating modes using the AUTO -%-$-. keys. These keys simultaneously control all circuits connected.

To modify the operating mode (AUTO, Daytime for only one of the heating circuits, use the remote control corresponding to this circuit.

An override applied to the remote control takes priority over the override selected on the central regulator.

` AUTO key = Automatic mode

Heating according to the time programme.

See: Programming.

` Key

The heating operates according to the Daytime temperature, independently of the timed programmes.

` Key

The heating operates according to the Nighttime temperature, independently of the timed programmes.

` Key

Domestic hot water production is enabled, independently of the time programme.

` Key

The heating is off but the installation is monitored and protected against frost.

The antifreeze mode protects:

- The installation if the outside temperature is lower than 3°C

- The room temperature if a remote control is connected and the

= Daytime mode

= Night mode

= Tank load enabled mode



= Antifreeze mode

(factory setting).

room temperature is lower than 6 °C (factory setting).

or Nighttime $)

C000142_02

` Key

024681012141618202224

Key function is activated, to switch to Cooling mode.

This function is independent of the "automatic heating shutdown" function in summer when the outside temperature exceeds the outside temperature for "heating shutdown".





SUNDAY

is used to cut off the heating and, if the corresponding

See menu #HEAT PUMP, parameter REFR.:

When the heating is off during the "summer" mode, the pumps are started up once a week for one minute in order to prevent fouling.

The MIT interior hydraulic module operates in COOLING mode only:

- During the

and

if the outside temperature is higher than the instruction

WIN

Do not use or modify this programme when operating with the QUADROPAC domestic hot water tank.

-04

(Located under the flap) = SUMMER mode / Cooling

STANDARD

C000142_03

DAY

period on timed programmes A and B,

SUM/WIN BAND

(Factory setting: 22 + 4 = 26 °C).

-04

SUM/

Antifreeze protection is guaranteed for each heating circuit,



regardless of the setting on the corresponding room temperature sensor. The room temperature in "antifreeze" mode is preset to +6 °C. This value can be modified if a room sensor is fitted.

See: Table of "User" setting.

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

Brief touch Several brief touches 1 long touch (5 seconds)

AUTO key Depending on the situation:

- Cancellation of the Daytime or Nighttime mode

- Confirmation of the antifreeze setting (or after 2 minutes)

Key%/

Key

Key # (Located

under the flap)



Temporary activation (Until midnight) The arrow above the key flashes.

Temporary activation

Set the number of days' absence (current day = 1) using keys

(up to 99 days).



The arrow above the key flashes. Cancellation: The antifreeze mode is cancelled when the number of antifreeze days is reset to zero or when the set time has elapsed.

Temporary activation (Until midnight) The arrow above the key flashes.

__First press: Permanent activation

and

Deferred temporary activation:

- First brief touch: Set the number of days' absence (current day = 1) using keys

- Second brief touch: Set the start month using keys

- Third brief touch: Set the start day using keys

The arrow above the key flashes until the start day and then becomes steady. Cancellation: The antifreeze mode is cancelled when the number of antifreeze days is reset to zero or when the set time has elapsed

Second depression: Deactivation Permanent activation

and  (up to 99 days).

and .

Cancels the message SHOW REM. CTRL which signals the presence of an

override on a remote control. The AUTO mode is forced on all existing heating circuits.

Permanent activation

The arrow above the key is steady.

Permanent activation

The arrow above the key is steady.

The permanent "antifreeze"



mode can also be selected using the TELCOM 2 remote voice monitoring module delivered as an option.

The arrow above the key is steady.

The heating is off. The symbol SU appears. Second depression: Deactivation

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

4 Heating and domestic hot water temperature

setting

024681012141618202224

SUNDAY

2

Comfort temperature - Cooling

Reduced temperature

Domestic hot water temperature

4.1 Heating temperature setting

The comfort and reduced temperatures are set separately for each circuit:

- Select the comfort temperature or the reduced temperature for the desired circuit by successively pressing key

- Set the temperature using keys

The graphic bar displays the heating programme for the



displayed circuit for the current day.

End of setting: Press the AUTO key or after 2 minutes.

and .

-04

Factory setting Adjustment range

20 °C

25 °C

16 °C

FL.HE.

5 to 30 °C In steps of 0.5°C

22 to 30 °C In steps of 0.5°C

5 to 30 °C In steps of 0.5°C

C000142_02

Temperature

* Is displayed if the following 2 conditions are satisfied:

• In summer mode, when the room temperature measured by the

• In parallel, depending on the outside temperature, automatic

DAY TEMP. A

ROOM REFR.T. *

NIGHT TEMP. A

- at least one room sensor is connected on a circuit which is configured in underfloor heating (

- cooling mode on.

sensor is higher than the set point ROOM REFR.T., the cooling mode starts up. The cooling mode shuts down when the room temperature measured is lower than ROOM REFR.T. -0.5°C.

cooling remains on.

4.2 DHW set temperature

- Select the domestic hot water temperature using key set the temperature using keys

If there is no domestic hot water sensor, pressing this key has



no effect.

- End of setting: Press the AUTO key or after 2 minutes.

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

or .

2

and

Temperature Adjustment range Factory setting

Domestic hot water

2

If DHW consumption is high, increase the domestic hot water



set temperature to 60°C.

10 to 80 °C In steps of 5°C

55 °C

5 Programming

5.1 Selecting a programme

The DIEMATIC 3 control unit includes 4 heating programmes:

- 1 fixed programme P1, activated in the factory.

- 3 custom programmes P2, P3, P4 to adapt to the lifestyle of the occupants.

Programme Day Daytime period P1 Monday - Sunday 6:00 - 22:00 P2 (Factory setting) Monday - Sunday 4:00 - 21:00 P3 (Factory setting) Monday - Friday 5:00 - 8:00, 16:00 - 22:00

Saturday - Sunday 7:00 - 23:00

P4 (Factory setting) Monday - Friday 6:00 - 8:00, 11:00 - 13:30, 16:00 - 22:00

Saturday 6:00 - 23:00 Sunday 7:00 - 23:00

Allocation of a programme to a circuit:

- Select the circuit using key A.B.

- Select the programme using the PROG key.

- The programme selected is active in automatic mode.

The programme for the current day can be displayed on the



graph bar using key

5.2 Hot water programme

The DIEMATIC 3 control unit includes a custom domestic hot water programme.

The programme for the current day can be displayed on the



graph bar using key

Programme Day Filling enabled

Tank (Factory setting) Monday - Sunday 2:00 - 6:00

MIT

For correct operation, we recommend activating timed programmes DHW and AUX at night to:

- Take advantatge of off-peak tariffs.

- Avoid having non-heating periods which are too long.

- Avoid switching from cold to hot operation several times a day when the cooling mode is activated during the daytime .



QUADROPAC

Programme 2 hours of DHW loading before a large draw-off (shower, bath, etc.).

or 2$.

5.3 Auxiliary programme

The DIEMATIC 3 control unit includes a custom programme on the auxiliary outlet.

Programme Day Filling enabled AUX (Factory setting) Monday - Sunday 6:00 - 22:00

Note: When you set parameter S.AUX: to AP. DHW, timed programme DHW is copied to timed programme AUX.Programme AUX can be

customised.

5.4 Customising the programmes

See: 6.2 Customising the programmes (P2, P3 or P4).

5.5 Resetting the programmes

Press the STANDARD key for 5 seconds:

- All customised programmes are replaced with their factory setting.

- Programme P1 is assigned to all heating circuits.

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

6 "User" settings

0 2 4 6 8 1012141618202224

SUNDAY

STANDARD

Key for access to setting and measurements

Page scrolling

Line scrolling

Back to the title or the previous line

Programming keys

Input (per 1/2 hour) of the Daytime Temperature period (Dark area)

Input (per 1/2 hour) of the Nighttime Temperature period (Light area)

Return key

When the flap is open, the keys are used to display measurements, programme modifications and the settings of the various parameters.

The various settings and programmes are saved even when the



power supply is cut off.

C000142_03

-04

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

6.1 Table of "User" setting

The different adjustable parameters are listed in their order of appearance.

Display

#MEASURES Allows the values below to be read

TEMP.MIT x x x x x x Water temperature in the MIT-II module or

HP FLOW TEMP. x x x Water temperature at the PAC outlet - - SOURCE TEMP. x Refrigerant temperature at the heat pump source

COLD TEMP. x x Temperature of the PAC cold circuit - - EVAPORATOR T. x Refrigerant temperature at the fin tube

OUTLET TEMP. B* x x x x x Water temperature in circuit B (Flow sensor) - - WATER TEMP. * x x x x x Tank water temperature - - ROOMTEMP. A* x x x x x Room temperature A - - ROOMTEMP. B* x x x x x Room temperature B - - OUTSIDE TEMP. x x x x x Outside temperature measured by the MIT-II

HP RETURN TEMP x x Return temperature - - HP FLOW TEMP. x x Flow temperature - - FLUID EVAP.T. x x Fin tube exchanger refrigerant temperature - - FLUID COND.T. x x Refrigerant temperature at the heat exchanger - - HOT GAS TEMP. x Refrigerant temperature at the compressor outlet - - HP OUTSIDE T. x x x x Outside temperature measured by the PAC - - HP FLOW TEMP. x Water temperature at the PAC outlet - - HP RETURN TEMP x Return temperature - - HP AIR IN T. x Outside temperature at the heat pump - - EVAPORATOR T. x Refrigerant temperature at the fin tube

HOT GAS TEMP. x Compressor outlet temperature - - PRESSION(BAR) x x x x x x Water pressure display - - NB IMP.COMP. x x x x Number of PAC start-ups - - NB IMP.COMP.1 x Number of start-ups on compressor 1 - - RUNTIME COMP. x x x x x x Number of PAC operating hours

NB IMP.COMP.2 x Number of start-ups on compressor 2 - - RUNTIME.COMP.2 x Number of hours' operation of compressor 2 - - CTRL x x x x x x Information reserved for the technician (Diematic

* The line or title is only displayed for the options, circuits or sensors actually connected

ROE-II ROE-H ROE+ ROE+TH SOLO,

NAPO

At the end of the intervention, the data is memorised after 2 minutes or by pressing the AUTO key.

ROI+

heating zone in the Quadro

end

exchanger outlet

module

exchanger outlet

Number of hours' operation of compressor 1

programme version)

Parameter set

Factory

setting

Adjustme

nt range

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

Display

#PROG. CIRC.A * x x x x x x Heating programme for circuit A if used

PROG EVERY DAY P2 x x x x x x Used to programme every day of the week

PROG MONDAY P2

PROG TUESDAY P2

PROG WEDNESDAY P2

PROG THURSDAY P2

PROG FRIDAY P2

PROG SATURDAY P2

PROG SUNDAY P2

PROG EVERY DAY P3 x x x x x x Used to programme every day of the week

PROG MONDAY P3

PROG TUESDAY P3

PROG WEDNESDAY P3

PROG THURSDAY P3

PROG FRIDAY P3

PROG SATURDAY P3

PROG SUNDAY P3

PROG EVERY DAY P4 x x x x x x Used to programme every day of the week

PROG MONDAY P4

PROG TUESDAY P4

PROG WEDNESDAY P4

PROG THURSDAY P4

PROG FRIDAY P4

PROG SATURDAY P4

PROG SUNDAY P4

#PROG. CIRC.B * x x x x x x Heating programme for circuit B if used

#PROG. AUXIL x x x x x x Auxiliary contact programming

#PROG. DHW*

* The line or title is only displayed for the options, circuits or sensors actually connected.

ROE-II ROE-H ROE+ ROE+TH SOLO,

xxx x xx

x x x x x x DHW tank programming (if the domestic hot

NAPO

ROI+

6.2 Customising the programmes

Write the customized programmes in the tables below, then save them as follows:

1. Open the cover to access to the setting and programme keys.

2. Press key #PROG. CIRC.B - #PROG. AUXIL - #PROG. DHW)

3. Select successive lines using key

The programming selected for line PROG EVERY DAY is



automatically copied to the other lines but can still be individually modified for each day.

4. Use key areas on the graphic display).

Use key

(dark areas on the graphic display). Use the return key

5. Proceed similarly for each connected circuit, if necessary.

6. When programming is completed, press key AUTO. Otherwise,

the programme will be automatically saved after 2 minutes.

To reset to the factory settings, press the key STANDARD for



5 seconds.

to select the paragraph (#PROG. CIRC.A -

to define the daytime periods (per 1/2 hour) (dark

to define the Nighttime periods (per 1/2 hour)

if you make a mistake.



#PROG. CIRC.A

Day Daytime period

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

 #PROG. CIRC.B

Day Daytime period

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

 #PROG. AUXIL

Day Daytime period

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

 #PROG. DHW: Domestic hot water

Day Daytime period

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

6.3 Miscellaneous settings

1. Use the J key to select the paragraph #SETTING.

2. Display the desired parameter using key

3. Set the value of the parameter by pressing buttons

` SUM/WIN: Automatic heating shutdown instruction.

Used to set the outside temperature above which heating will be shut down.

- The symbol SU appears.

If this parameter is set to NO, the heating is never shut down automatically.

The cooling mode is activated when the following conditions are satisfied:

- Parameter

- Outside temperature > SUM/WIN instruction +

- The circuit is configured as underfloor heating or convector fan.

See: Technical and installation instructions for MIT.

` CALIBR. OUT: Outside sensor calibration

Used to correct the outside temperature. For example Outside temperature measured = 10 °C Temperature displayed = 11 °C Set parameter CALIBR. OUT to -1. Calibration only becomes effective after a few dozen seconds, and the display is corrected only after this time.

REFR.:

is set to

SUM/WIN BAND

and :

` ANTIFR. ROOM...: Room antifreeze

Setting the minimum room temperature which is maintained in the antifreeze mode for each circuit. This temperature is only checked if a room sensor is connected. Without a room sensor, this parameter is not displayed and the set temperature is 6 °C (not adjustable).

` CALIBR. ROOM...: Room sensor calibration

Used to correct the room temperature display. For example Room temperature measured = 20 °C Temperature displayed = 19 °C Set parameter CALIBR. ROOM... to +1.

When a remote control is connected, this setting must be made



at least 2 hours after the power is turned on, to enable the room temperature to stabilise.

` AMB OFFSET...: Room offset - Without room sensor

Is used to set a room offset. For example: Set room temperature = 20 °C Measured temperature = 19 °C Set parameter AMB OFFSET... to +1.

The setting must be made after the temperatures have



stabilised.

6.4 Setting the time and the date - Summer time

1. Press the J key to select the #TIME . DAY menu

2. Display the desired parameter using key

3. Set the value of the parameter by pressing buttons

HOURS MINUTE DAY MONTH

and :

DATE YEAR SUM. TIME: AUTO (Factory setting) - MANU

The control unit is programmed to switch automatically to summer time on the last Sunday in March and back to winter time on the last Sunday in October. When the setting is on "manual", the automatic change does not take place.

7 Message

Message Probable causes Action

SHOW REM. CTRL The message SHOW REM. CTRL signals the presence of an

override on a remote control

To cancel the overrides on all remote controls, press the AUTO key for 5 seconds.

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

8 Maintenance

The installation and maintenance of the appliance must be



carried out by a qualified professional in compliance with the statutory texts of the codes of conduct in force.

Before working on the appliance, ensure that it is switched



off and safe.

Check the discharge on the compressor condenser for



single phase voltages.

Before working on the cooling circuit, switch off the



appliance and wait a few minutes. Some equipment such as the compressor and the pipes can reach temperatures higher than 100°C and high pressures, which may cause serious burns.

8.1 Maintenance contract

We recommend taking out a maintenance contract.

Servicing frequency

8.1.1 Operations to be done at each service

: At least once a year

Maintenance operations are important for the following reasons:

- To guarantee optimum performance

- To extend the life of the equipment

- To provide an installation which offers the customer optimum comfort over time

Take a reading of the installation's operation at each periodic service. Refer to this reading in the maintenance log and compare it with the commissioning data. Signal any anomalies.

Schedule a service in cold periods to check the following points:

- Operation of the defrosting process

- Setting of the thermostats and safety devices

- Thermal output by measuring the temperature difference between the flow and the return

 Preventive monitoring

- Check whether the pump stopped after a safety shutdown (Error warning light illuminated)

- Dust and clean the external unit on the PAC

Do not pour water on it, use a rag or a sponge.



- Check the run-off in the condensates vats.

- Clean the condensates vats.

- Check the performance of the heat pump

- Carry out a visual and aural check on the entire system(normal noises, panel detached, lagging, traces of water,...)

- Regularly check the concentration of the antifreeze fluid.

: Temperature control.

8.2 Fault finding

All work on the cooling circuit must be done by a qualified professional, according to prevailing codes of practice and safety in the profession (recovery of the refrigerant, brazing under nitrogen, etc.)

All brazing work must be done by qualified brazers.

This appliance is fitted with pressurised equipment, including the refrigeration pipes.

Use only original parts to replace a defective refrigeration component.



Maintenance

- Check for leaks on components which guarantee the containment of refrigerant.

- Check the electrical connections.

- Regulator function check.

- Change all parts and cables judged to be defective.

- Check all screws and nuts (cover, support, etc.)

- Change damaged sections of lagging.

- Paint the damaged parts.

- Use dehydrated nitrogen or a mixture of nitrogen and refrigerant indicated on the rating plate.

Leak detection - Pressurised tests

- Never use oxygen or dehumidified air, danger of fire or explosion.

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

9 Diagnosing breakdowns

Display ROE-II

ROE-H

No display xxx

HP COM.FAIL xxx

MANOMETRE FAIL xxx

FAIL. MIT S. xxx

OUTSI. S.FAIL. xxx

OUTL S.B FAIL. xxx

ROOM S.A FAIL. xxx

ROOM S.B FAIL. xxx

DHW S. FAILURE xxx

FAIL. SOURCE S. xx

FAIL. PAC FLOW S. xx

COLD S.FAIL xx

COLD CIRC.FAIL x

ROE+

ROE+TH

SOLO

NAPO

ROI+ Installation malfunction/HP or

Communication error with the PAC.

Fault on the water pressure sensor

MIT sensor fault

Fault external sensor

Sensor fault flow circuit B

Fault room temperature sensorA- Wiring problem between the MIT module and the

Fault room temperature sensorB- Wiring problem between the MIT module and the

Domestic hot water outlet sensor fault

Fault on the source sensor (SOLO / NAPO) or the outside sensor (ROE+)

Fault on the PAC flow sensor

Fault on the cold sensor

Fault on the cold circuit - A H.PRES. FAIL., HOT GAS FAIL. or L.PRES. FAIL

PAC

Meaning / Cause (listed in order of likelihood)

- Check the electricity supply

- Check that the fuses are in good working condition

ROE+: When the appliance is switched on, the



end-of-defrosting pressure switch must be open.

NAPO: The primary flow switch must be



closed when the appliance is switched on.

Code resistance value:



ROE+: 68 kΩ SOLO: 18 kΩ

- Thermodynamic unit off.

- Parameter HP in the #HEAT PUMP menu incorrectly configured.

- BUS wiring problem between the MIT and the thermodynamic unit (colours, polarities)

- MIT flat cable faulty

- Comunication pcb defective.

- Wiring problem

- The manometer is defective

- Sensor pcb defective

remote control.

- Remote control defective.

- Sensor pcb defective.

remote control.

- Remote control defective.

- Sensor pcb defective.

fault has occurred previously. For more information, display the #DEF. HISTORY menu.

- To eradicate this fault, switch off the control panel and turn it back on.

When a fault is displayed followed by AUTO, this disappears automatically after a few minutes. When the fault displayed is followed by



MANU, it is necessary to reset the HP using the reset button (See section 3.1).

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

Display ROE-II

ROE-H

H.PRES. FAIL. xx

ROE+

ROE+TH

SOLO

NAPO

ROI+ Installation malfunction/HP or

High Pressure fault

Installation malfunction

The PAC has been deactivated after reaching the high pressure limit

HOT GAS FAIL. x

L.PRES. FAIL xx

Hot gas fault The temperature between the primary and the PAC

Low Pressure fault

PAC malfunction

The PAC has been deactivated after reaching the high pressure limit

MOT.PROT.FAIL xx

Motor/compressor protection

PAC malfunction

Compressor fault

FLOW FAIL. xx

Flow rate fault (Only with hot water PACs and heating with 1 compressor)

Installation malfunction

COMP.FAIL. x

HP OUT LIMIT x

Fault level: temporary - Compressor rotation

Under the lower operating limit

Installation malfunction

OUT LIMIT 1 x

OUT LIMIT 3 x

FAIL. H.P PAC x

Under the lower operating limit -

Above the upper operating limit -

Fault level: Permanent / temporary

PAC

Meaning / Cause (listed in order of likelihood)

- Heating water flow rate too low

- Heating circulating pump defective

- Differential valve incorrectly set or incorrectly dimensioned

- Air in the heating circuit

- Nonreturn valve in the collector open or faulty

- HP pressure switch defective

- Condensor blocked

- Regulator faulty

outlet is too high. (For example: -20°C outside - 50°C at PAC outlet)

- Heating water flow rate too low

- Heating circulating pump defective

- Differential valve incorrectly set or incorrectly dimensioned

- Air in the heating circuit

- Nonreturn valve in the collector open or faulty

- HP pressure switch defective

- Condensor blocked

- Regulator faulty

- System temperature too low

- Evaporator on PAC air/water frozen

- Heat source production or collector on PAC underdimensioned

- Leak in refrigerant circuit

- LP pressure switch defective

-Filter blocked

- Regulator faulty

- Glycol water concentration too weak

- Evaporator on PAC blocked

- defective

- Progressive starter faulty

-Filter blocked

- Electricity consumption too high

- Glycol water concentration too weak (< 25 %)

- Evaporator rusty

- On NAPO PAC

: Flow rate on well too low

-Filter blocked

- Absorption well and supply well inverted

- Evaporator on PAC blocked

- Antifreeze protection 2 time in 2 hours

- HP or fin tube battery sensor short circuited

When a fault is displayed followed by AUTO, this disappears automatically after a few minutes. When the fault displayed is followed by



MANU, it is necessary to reset the HP using the reset button (See section 3.1).

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

Display ROE-II

ROE-H

FAIL. PAC V4V xx

ROE+

ROE+TH

SOLO

NAPO

ROI+ Installation malfunction/HP or

4-way valve fault

PAC malfunction

Fault level: temporary

FAIL. PAC PUMP x

Fault level: Permanent / temporary

FAIL.EXT.S.PAC x

Fault level: permanent in hot mode / temporary in cold mode

FAIL.RET.S.PAC xx

FAIL. PAC FLOW S. xx

FAIL.BAT.S.PAC x

FAIL.EXCH.S.PAC x

Fault level: Permanent - Opening or short circuit on the water inlet temperature

Fault level:Permanent - Opening or short circuit on the water outlet

Fault level:Permanent - Opening or short circuit at the fin tube exchanger

Fault level: permanent in cold mode / temporary in hot mode

HGAS S.HP FAIL x

FLOW FAIL. 6 x

Fault level:Permanent - Opening or short circuit of the refrigerant temperature

Fault level:Permanent / temporary

FLOW FAIL. 7 x

Fault level:Permanent / temporary

FLOW FAIL. 8 x

FAIL.EEPROM CPU x

FAIL. UNKNOWN x

MC COM.FAIL xx

Fault level: temporary - Exchanger frozen

Error EEPROM CPU - Switch off PAC and start up again

Fault unknown - Switch off PAC and start up again

Communication fault Boiler Module

BIOS FAIL. x

CONFIG.FAIL. x

Wrong Carel box - Replace the box

Wrong coding resistor / cold sensor combination

SHUNT/CA FAIL. x

If the contact is open and there is a communication with the control panel, the PAC stops (except ROE-H)

COND. ANTI. F. x

The PAC flow temperature is too low

DEFROST FAIL. x

AIR IN S.FAIL x

HGAS S.FAIL x

EVA.S.HP FAIL x

COND.S.HP FAIL x

HP FAIL.: ... x

Fault number if this is not included in the list

Meaning / Cause (listed in order of likelihood)

PAC

- 4-way valve blocked open or closed

- Reversal of the heating flow and return

- Lack of refrigerant

- Regulator faulty

-No water

- Circulating pump breakdown

- Opening or short circuit on the outside temperature sensor

sensor

temperature sensor

refrigerant temperature sensor

- Opening or short circuit of the refrigerant temperature sensor at the heat exchanger inlet

sensor at the compressor outlet

- Exchanger frozen

- Change the micro-connect board

- Check the wiring and the cold sensor

- Check that the back-ups are working

- Opening of or short circuit on the air inlet temperature sensor

- Opening of or short circuit on the hot gas temperature sensor

- Opening of or short circuit on the evaporator temperature sensor

When a fault is displayed followed by AUTO, this disappears automatically after a few minutes. When the fault displayed is followed by



MANU, it is necessary to reset the HP using the reset button (See section 3.1).

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

Display ROE-II

ROE-H

NO CONFIG. x

When a fault is displayed followed by AUTO, this disappears automatically after a few minutes. When the fault displayed is followed by



MANU, it is necessary to reset the HP using the reset button (See section 3.1).

ROE+

ROE+TH

SOLO

NAPO

ROI+ Installation malfunction/HP or

PAC

Meaning / Cause (listed in order of likelihood)

The PAC is not recognised - Check that the coding resistor is fitted

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

arranty

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.



Warranty terms

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 fitter). 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:

- applicable local laws and regulations

- specific requirements relating to the installation, such as national and/or local regulations

- the manufacturer's instructions, in particular those relating to the regular maintenance of the unit

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

Italy



The duration of our warranty is shown on the certificate delivered with the appliance.

Our liability as manufacturer may not be invoked in respect of incorrect use of the appliance, incorrect or insufficient maintenance thereof, or incorrect installation of the appliance (you must therefore ensure that installation and maintenance operations are carried out respectively by a qualified professional and by an after sales service company).

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.



Russia

The foregoing provisions in no way affect the rights of the consumer, which are guaranteed by the legislation of the Russian Federation as regards hidden defects.

The terms and conditions of warranty and the terms and conditions of application of the warranty are indicated on the warranty form.

The warranty shall not apply as regards the replacement or repair of wearing parts under normal use. Such parts include thermocouples, injection nozzles, flame control and ignition systems, fuses and gaskets.



Turkey

Due to the laws and regulations the product life for this product is 10 years. During that time the producer and/or the distributor has to provide after sales services and spare parts.

Other countries



The above provisions do not restrict the benefit of the legal laws regarding hidden defects applicable in the buyer's country.



France

The preceding dispositions are not exclusive of benefits for the purchaser of the legal guarantee as stated in Civil Code articles 1641 to 1648.



Poland

Warranty conditions are included in the warranty card.



Switzerland

The application of the warranty is subject to the terms and conditions of sale, delivery and warranty of the company marketing our products.



Belgium

The preceding dispositions about the contractual guarantee are not exclusive of profit if the need arises for the purchaser in Belgium of the applicable legal dispositions on hidden defects.

MIT-II - MIT/P - QUADROPAC DUP 500 14/04/2010 - 300015090-001-L

14/04/2010 - 300015090-001-L MIT-II - MIT/P - QUADROPAC DUP 500

DE DIETRICH THERMIQUE S.A.S.

www.dedietrich-thermique.fr

Direction des Ve ntes France

57, rue de la Gare

F- 67580 MERTZWILLER

+33 (0)3 88 80 27 00 +33 (0)3 88 80 27 99

DE DIETRICH REMEHA GmbH

www.dedietrich-remeha.de

Rheiner Strasse 151

D- 48282 EMSDETTEN

+49 (0)25 72 / 23-5

+49 (0)25 72 / 23-102

info@dedietrich.de

VAN MARCKE

www.vanmarcke.be

Weggevoerdenlaan 5

B- 8500 KORTRIJK

+32 (0)56/23 75 11

DE DIETRICH

www.dedietrich-heating.com

Room 512, Tower A, Kelun Building 12A Guanghua Rd, Chaoyang District

C-100020 BEIJING +86 (0)106.581.4017 +86 (0)106.581.4018 +86 (0)106.581.7056 +86 (0)106.581.4019

contactBJ@dedietrich.com.cn

NEUBERG S.A.

www.dedietrich-heating.com

39 rue Jacques Stas

L- 2010 LUXEMBOURG

+352 (0)2 401 401

DE DIETRICH

www.dedietrich-otoplenie.ru

129090 г. Москва

ул. Гиляровского, д. 8

офис 52

+7 495 988-43-04 +7 495 988-43-04 dedietrich@nnt.ru

ÖAG AG

www.oeag.at

Schemmerlstrasse 66-70

A-1110 WIEN

+43 (0)50406 - 61624

+43 (0)50406 - 61569

dedietrich@oeag.at

WALTER MEIER (Klima Schweiz) AG

www.waltermeier.com

Bahnstrasse 24

CH-8603 SCHWERZENBACH

+41 (0) 44 806 44 24

Serviceline +41 (0)8 00 846 846

+41 (0) 44 806 44 25

ch.klima@waltermeier.com

WALTER MEIER (Climat Suisse) SA

www.waltermeier.com

Z.I. de la Veyre B, St-Légier

CH-1800 VEVEY 1

+41 (0) 21 943 02 22

Serviceline +41 (0)8 00 846 846

+41 (0) 21 943 02 33

ch.climat@waltermeier.com

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.

Subject to alterations.

14/04/2010

AD001NU-AC

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

DE DIETRICH MIT-II-E, MIT-II-H, MIT-EP, MIT-HP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Used symbols

2 Important recommendations

3 Control panel

3.1 Electromechanical components

3.2 Display

3.3 Keys accessible when the flap is closed

3.4 Keys accessible when the flap is open

3.5 Operating mode

4.1 Heating temperature setting

4.2 DHW set temperature

5 Programming

5.1 Selecting a programme

5.2 Hot water programme

5.3 Auxiliary programme

5.4 Customising the programmes

5.5 Resetting the programmes

6 "User" settings

6.1 Table of "User" setting

6.2 Customising the programmes

6.3 Miscellaneous settings

6.4 Setting the time and the date - Summer time

7 Message

8 Maintenance

8.1 Maintenance contract

8.1.1 Operations to be done at each service

8.2 Fault finding

9 Diagnosing breakdowns