Dimplex M Flex 0609 User guide

Order no.: DOK4x HOIAO FxDEN EN · FD 0001
M Flex 0609
M Flex 0916
M Flex 0916M
Installation and
Operating Instruction
Air-to-water
heat pump
in integral design
Glen
Dimplex
Deutschland
Dimplex
09CHOIAOF6
16IHOIAOF6
16CHOIAOF6

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Air-to-water heat pump M Flex English
Table of contens
1 Safety notes.........................................................................................................................................................3
1.1 Symbols and markings.......................................................................................................................................................... 3
1.2 Intended use............................................................................................................................................................................. 3
1.3 Legal regulations and directives ........................................................................................................................................ 3
1.4 Energy-efficient use of the heat pump............................................................................................................................ 3
2 Intended use of the heat pump ......................................................................................................................4
2.1 Area of application.................................................................................................................................................................. 4
2.2 Operating principle................................................................................................................................................................. 4
3 Scope of supply ..................................................................................................................................................5
3.1 Indoor unit ................................................................................................................................................................................. 5
3.2 Outdoor unit.............................................................................................................................................................................. 6
4 Transport..............................................................................................................................................................7
4.1 Outdoor unit.............................................................................................................................................................................. 7
4.2 Indoor unit ................................................................................................................................................................................. 7
5 Positioning ...........................................................................................................................................................9
5.1 Outdoor unit.............................................................................................................................................................................. 9
5.2 Indoor unit and optional domestic hot water cylinder .............................................................................................10
5.3 Acoustic emissions...............................................................................................................................................................10
6 Assembly / connection.................................................................................................................................. 11
6.1 Assembly of the refrigerant line and electric wire .....................................................................................................11
6.2 Condensate drain..................................................................................................................................................................11
6.3 Connection on heating side ..............................................................................................................................................11
6.4 Domestic hot water connection ......................................................................................................................................12
6.5 Temperature sensor connection .....................................................................................................................................13
6.6 Electrical connection ...........................................................................................................................................................14
6.7 Hydraulic integration diagram ..........................................................................................................................................17
6.8 Refrigerant pipe connections ...........................................................................................................................................19
7 Commissioning ................................................................................................................................................ 21
7.1 General......................................................................................................................................................................................21
7.2 Preparation..............................................................................................................................................................................21
7.3 Procedure ................................................................................................................................................................................21
8 Cleaning / maintenance ................................................................................................................................ 22
8.1 Maintenance ...........................................................................................................................................................................22
8.2 Cleaning the indoor unit .....................................................................................................................................................22
8.3 Cleaning the domestic hot water cylinder....................................................................................................................22
8.4 Cleaning the outdoor unit ..................................................................................................................................................22
9 Faults / troubleshooting................................................................................................................................ 23
10 Decommissioning / disposal ........................................................................................................................ 23
11 Device information ......................................................................................................................................... 24
11.1 Device information heat pump.........................................................................................................................................24
12 Dimension drawing......................................................................................................................................... 26
12.1 Dimension drawing outdoor unit.....................................................................................................................................26
12.2 Dimension drawing indoor unit ........................................................................................................................................27
12.3 Dimension drawing legend................................................................................................................................................28
13 Product information as per Regulation (EU) No 813/2013, Annex II, Table 2.................................. 29
14 Warranty certificate........................................................................................................................................ 32

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English Air-to-water heat pump M Flex
15 Information on the use of data..................................................................................................................... 33
16 Declaration of conformity............................................................................................................................. 34

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Air-to-water heat pump M Flex English
1Safetynotes
1.1 Symbols and markings
Particularly important information in these instructions is
marked with CAUTION! and NOTE.
!!
ATTENTION!
Immediate danger to life or danger of severe personal injury or
significant damage to property.
HINWEIS
ºººººº
NOTE
Risk of damage to property or minor personal injury or impor-
tant information with no further risk of personal injury or dam-
age to property.
1.2 Intended use
This device is only intended for use as specified by the manu-
facturer. Any other use beyond that intended by the manufac-
turer is prohibited. This requires the user to abide by the rele-
vant project planning documents. Please refrain from
tampering with or altering the device.
1.3 Legal regulations and directives
This heat pump is designed for use in a domestic environment
according to Article 1, Paragraph 2 k) of EC directive 2006/42/
EC (machinery directive) and is thus subject to the require-
ments of EU directive 2014/35/EU (low-voltage directive). It is
thus also intended for use by non-professionals for heating
shops, offices and other similar working environments, agricul-
tural establishments and hotels, guesthouses and other resi-
dential buildings.
The construction and design of the heat pump complies with all
relevant EU directives, DIN and VDE regulations.
When connecting the heat pump to the power supply, the rele-
vant VDE, EN and IEC standards are to be adhered to. Any fur-
ther connection requirements stipulated by local utility compa-
nies must also be observed.
When connecting the heating system, all country-specific reg-
ulations must also be adhered to.
This unit can be used by children aged 8 and over and by per-
sons with limited physical, sensory or mental aptitude or lack of
experience and/or knowledge, providing they are supervised or
have been instructed in the safe use of the unit and understand
the associated potential dangers.
Children must not play with the device. Cleaning and user
maintenance must not be carried out by children without su-
pervision.
!!
ATTENTION!
Work on the heat pump must only be performed by author-
ised and qualified after-sales service technicians!
HINWEIS
º
ºº
º
ºº
NOTE
When operating or maintaining a heat pump, the legal require-
ments of the country where the heat pump is operated apply.
Depending on the refrigerant fill quantity, the heat pump
must be inspected for leaks at regular intervals by a certified
technician, and these inspections must be recorded.
1.4 Energy-efficient use of the heat
pump
By operating this heat pump you are helping to protect our en-
vironment. The heating system must be properly designed and
dimensioned to ensure efficient operation. It is particularly im-
portant to keep water flow temperatures as low as possible in
heating operation. All connected heat consumers should there-
fore be suitable for low flow temperatures. Raising the heating
water temperature by 1 K corresponds to an increase in electric
energy consumption of approx. 2.5 %. Low-temperature heat-
ing systems with flow temperatures between 30 °C and 50 °C
are particularly well-suited for energy-efficient operation.

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English Air-to-water heat pump M Flex
2 Intended use of the heat pump
2.1 Area of application
The air-to-water heat pump is to be used exclusively for heating
and domestic hot water. It can be used in new or existing heat-
ing systems.
The heat pump is suitable for mono energy and bivalent opera-
tion in outside air temperatures of up to -22 °C.
Proper defrosting of the evaporator is guaranteed by maintain-
ing a heating water return temperature of more than 20 °C dur-
ing continuous operation.
It is not designed for the increased heat consumption required
when a building is being dried out. For this reason, the addi-
tional heat consumption should be met using special devices
provided by the customer.
2.2 Operating principle
Surrounding air is drawn in by the fan and fed through the evap-
orator (heat exchanger). The evaporator cools the air, i.e. ex-
tracts heat from it. This extracted heat is then transferred to the
working medium (refrigerant) in the evaporator.
The heat is "pumped" to a higher temperature level by increas-
ing its pressure with the aid of the electrically driven compres-
sors. It is then transferred to the heating water via the liquefier
(heat exchanger).
Electrical energy is used to raise the temperature level of the
heat from the environment. Because the energy extracted from
the air is transferred to the heating water, this type of device is
referred to as an air-to-water heat pump.
The air-to-water heat pump consists of the main components
evaporator, fan and expansion valve, as well as the compres-
sors, the liquefier and the electrical control system.
At low ambient temperatures, humidity accumulates on the
evaporator in the form of frost, reducing the transfer of heat.
Uneven accumulation during this process does not indicate a
fault. The evaporator is defrosted automatically by the heat
pump as required. Under certain atmospheric conditions,
steam may be emitted from the air outlet.

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Air-to-water heat pump M Flex English
3 Scope of supply
3.1 Indoor unit
Hydraulic systems
(including a dual differential pressureless
manifold)
1) 50 l buffer tank
2) Actuator for 3-way reversing valve
3) 3-way reversing valve for generating domestic hot water
4) Regulated auxiliary circulating pump
5) Switch box with heating controller
6) Electric additional heater (2, 4 or 6 kW) for higher domestic
hot water temperatures and for heating support
7) Safety valve, start-to-leak pressure 2.5 bar
8) Expansion vessel (24 l)
9) Regulated heat circulating pump primary circuit
Refrigeration circuit
10) Heat exchanger refrigerant / heating water
11) Compressor
12) 4-way reversing valve
13) Refrigeration circuit controller switch box
14) Filter dryer
15) Refrigerant line connections
16) Collector
11
10
12
13
14
8
5
6
3
4
72
1
9
15
16

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English Air-to-water heat pump M Flex
3.2 Outdoor unit
1) Evaporator
2) Fan
3) Expansion valve
4) Switch box
5) Connection for refrigerant line
1
2
4
3
55

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Air-to-water heat pump M Flex English
4 Transport
4.1 Outdoor unit
A pallet should be used to transport the heat pump to its final
installation location. The outdoor unit can be transported with a
lift truck, hand truck or similar.
Once the side sections have been removed, the outdoor unit
can be lifted by the cover. For this, loosen the two screws at the
top, tilt the metal plate to the side and remove at the top (see
step 1-3)
4.2 Indoor unit
A lift truck is suited for transporting the unit on a level surface.
Carrying straps may be used if the heat pump needs to be
transported on an uneven surface or carried up or down stairs.
These straps can be passed directly underneath the pallet.
To lift from the pallet, the indoor unit can be tilted back by up to
45° and lifted by the handles on the back at the top.
Tilting more than 45° is not permitted.
Once the two side sections have been removed, the device also
has the option of inserting ¾“ support tubes through the holes
in the frame.
The casing panels must be dismantled in the order outlined be-
low.
The right side panel must be removed first. For this, loosen the
two screws at the top, tilt the metal plate to the right and re-
move at the top (see step 1-3). The left side panel can be re-
moved in the same way.
The front panel can then be removed.
For this, loosen the two screws on the right frame at the side.
Push the metal plate approx. 10 mm to the right, then push it
forwards slightly and remove at the top (see step 4-7). Discon-
nect the connection cables on the display screen.
1.
2.
3.
1.
45°
max.
1.
1.
2.
3.
4.
6.
7.
5.
4.

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English Air-to-water heat pump M Flex
After the final positioning at the installation location, remove
the transport fastening on the sprung floor of the compressor
on both sides.
!!
ATTENTION!
Before commissioning, the transport fastening must be re-
moved.