ATREA FG09 User manual

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EN
Version:
01
Issue: 2020_07
Code: R35_01_V01_CZ_2020_07
Outdoor air conditioning units
FS/FG

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1. General information, glossary of terms
1.1 Sections of the manual
1.2 Content
1. General information, glossary of terms.............................................................................................................................2
1.1 Sections of the manual.....................................................................................................................................................2
1.2 Content.............................................................................................................................................................................2
1.3 Introduction.......................................................................................................................................................................3
1.4 Description of the unit.......................................................................................................................................................3
1.5 Internal arrangement diagram ..........................................................................................................................................3
1.6 Persons authorised to perform installation, commissioning and maintenance .................................................................4
1.7 Warnings ..........................................................................................................................................................................4
2. Scope of delivery, accessories, transportation and storage..............................................................................................4
2.1 Storage and transportation...............................................................................................................................................4
2.2 Scope of delivery of FS/FG units......................................................................................................................................4
2.3 Recommended accessories .............................................................................................................................................4
3. Description of the unit .......................................................................................................................................................5
3.1 Technical parameters of condensation units ....................................................................................................................5
3.2 Dimensions and drawings of condensation units..............................................................................................................7
3.21 Model FG09 (with refrigerant R32)...........................................................................................................................7
3.22 Model FG14. FG18 (with refrigerant R410A) ...........................................................................................................7
3.23 Model FG24 (with refrigerant R410A) ......................................................................................................................8
3.24 Model FG30. FG36 (with refrigerant R410A) ...........................................................................................................8
3.3 Acoustic parameters of each model .................................................................................................................................9
3.31 Model FG09 (for R32) – cooling – heating ...............................................................................................................9
3.32 Model FG14 (for R410A) – cooling – heating...........................................................................................................9
3.33 Model FG18 (for R410A) – cooling – heating.........................................................................................................10
3.34 Model FS24 (for R410A) – cooling – heating .........................................................................................................10
3.35 Model FG30 (for R410A) – cooling – heating.........................................................................................................10
3.36 Model FG36 (for R410A) – cooling – heating.........................................................................................................11
3.4 Power parameters of individual models..........................................................................................................................11
3.41 Unit FG09...............................................................................................................................................................11
3.42 Unit FG14...............................................................................................................................................................11
3.43 Unit FG18...............................................................................................................................................................12
3.44 Unit FG24...............................................................................................................................................................12
3.45 Unit FG30...............................................................................................................................................................12
3.46 Unit FG36...............................................................................................................................................................13
3.47 Conditions related to the above technical parameters of condensation units ........................................................13
4. Installing and fitting the unit ............................................................................................................................................13
4.1 Place of installation.........................................................................................................................................................13
4.11 Recommended minimum clearances.....................................................................................................................14
General information, glossary of terms Commissioning, warranty
Scope of delivery, accessories, transportation
and storage
Maintenance and servicing
Description of the unit, technical information Faults and troubleshooting
Assembly and installation Appendices
Instrumentation and control, electrical wiring

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4.2 Installation instructions ...................................................................................................................................................14
4.21 Installation on a wall-mounting bracket set for air conditioning units (order code R316101)..................................15
4.22 Installation on a floor-mounting bracket set for air conditioning units (order code R316111).................................15
4.3 Connecting the refrigerant line .......................................................................................................................................16
4.31 Connecting piping dimensions ...............................................................................................................................16
4.32 Testing procedure..................................................................................................................................................17
4.33 Recharging a refrigerant for R410A .......................................................................................................................17
4.34 Recharging a refrigerant for R32............................................................................................................................18
4.4 Other requirements for refrigerant R32...........................................................................................................................18
4.5 Condensate drainage .....................................................................................................................................................18
4.51 Free-flowing (to the foot of the house / to the wastewater system)........................................................................18
4.52 Using a drain pipe buried below the frost line ........................................................................................................20
5. Instrumentation and controls, electrical wiring ................................................................................................................20
5.1 Instrumentation and controls ..........................................................................................................................................20
5.11 Starting up..............................................................................................................................................................20
5.12 Electrical parameters .............................................................................................................................................20
5.13 Connecting the CIM MODULE, power control........................................................................................................21
6. Commissioning, warranty ...............................................................................................................................................21
6.1 Commissioning...............................................................................................................................................................21
6.11 Connecting to the mains power supply ..................................................................................................................21
6.12 Disconnecting from the mains power supply..........................................................................................................21
6.2 Warranty.........................................................................................................................................................................22
7. Maintenance and servicing.............................................................................................................................................22
7.1 Maintenance and servicing.............................................................................................................................................22
7.2 Spare parts, repairs........................................................................................................................................................22
7.3 Safety conditions for refrigerant handling .......................................................................................................................22
7.4 Disposal of the unit at the end of its useful life ...............................................................................................................23
8. Faults and troubleshooting .............................................................................................................................................23
1.3 Introduction
These outdoor air conditioning units are intended primarily to work in conjunction with heat pumps and to be connected directly
to internal tanks and ATREA AHUs. The units always include a control module, which is part of the RD5-TZ control module or
the control system of AHUs with RD5 controls.
1.4 Description of the unit
It is a compact outdoor unit overcharged with refrigerant R410A/R32 and designed for installation in appropriate refrigerant
distribution systems. It must not be used for any purpose other than that stipulated in this manual.
Air conditioners FSxx
An outdoor air conditioning unit. This designation is used for the DUPLEX group of
products which control switching between two sources (direct condensation into the
tank and direct evaporation into a DUPLEX unit).
Air conditioners FGxx
An outdoor air conditioning unit. This designation is used for the DUPLEX group of
products which control direct evaporation into a DUPLEX unit.
The parameters of condensation units FS and FG are identical (this means that air conditioners FG09 and FS09 are the same
air conditioning units).
1.5 Internal arrangement diagram
Refrigerant flow direction
Heating
Cooling

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1.6 Persons authorised to perform installation, commissioning and maintenance
Commissioning and maintenance of heat pumps may only be performed by persons certified and authorised in line with Act
73/2012 Coll. §10 Par. (1) and (2). This certification is issued by the Ministry of the Environment, which maintains and publishes
a remotely accessible list of certified persons by trade; see http://mzp.cz/dco.
Connections to the mains power supply can only be carried out by persons familiar with CSN 332000-3 Art. 322.1-BA 5 (IEC
364-3 Art. 322.1-BA 5). (for Slovakia: in accordance with Decree 74/1996 / Decree 57/78 Coll.)
Persons authorised to carry out the installation, commissioning and maintenance of the units in line with the above regulations
must also be authorised to perform servicing by ATREA s.r.o.
1.7 Warnings
FS/FG series air conditioning units should be used only for the purposes they were manufactured for (sensors designed for
specific functions and locations). The maintenance and handling of their individual components is described in chapters 2. 6
and 7.
The owners of the units should avoid the following:
•Tampering with the unit’s wiring, connecting or otherwise tampering with the power lines. The cabling and connections will
be carried out by persons qualified to install and perform maintenance of these units (i.e. controls).
•Badly damage the units or expose them to conditions it is not designed for (by placing it away from designated areas,
changing the position of sensors etc.)
•Performing repairs and maintenance in the scope other than that defined in chapter 8.
•Conducting mechanical work on the control system (e.g. inspection / replacement of sensors) when the power supply is on.
The unit must always be disconnected from the power supply and reconnected only after maintenance / installation work is
finished.
•Tampering with the refrigerant circuit.
2. Scope of delivery, accessories, transportation and storage
2.1 Storage and transportation
•The unit must be stored only in dry and clean areas at ambient temperatures between 0 °C and 50 °C. The unit must be
stored in such a way so as to ensure that the unit or its packaging are not damaged.
•During storage the unit must be kept in its original and intact packaging.
•The transport packaging can only be removed at the time of installation on site. Before installation it is necessary to check
the floor where the unit is to be installed for cleanliness and inspect the refrigerant manifold for cleanliness and good
condition. Clean as necessary.
•During transportation the unit must be protected against any falls, mechanical damage, water leaking in and any other
adverse conditions that might lead to damage to the unit or its packaging.
2.2 Scope of delivery of FS/FG units
The delivery package of FS/FG units in their basic configuration contains only the actual unit including all fittings – the duct
section, the power section and the amount of refrigerant as specified in chapter Technical parameters.
2.3 Recommended accessories
Recommended accessories include mainly connecting refrigerant lines, mounting brackets (for wall or floor mounting) and a
communication module for controlling the unit using a master system.

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3. Description of the unit
3.1 Technical parameters of condensation units
Model
FG09 / FS09
FG14 / FS14
FG18 / FS18
For refrigerant
Type
R32
R410A
R410A
[g]
600
1250
1250
Model
AOYG09KMTA KAOU14Ui KAOU18Ui
Power supply
[V]
230 V / 50Hz
Permitted power supply range
[V]
198 – 264 V / 50Hz
Max. sup. current
[A]
9.0
12.5
13.5
Fan
Air flow
rate
Cooling
[m3/h]
1650
1910
2000
Heating
1450
1740
1910
Type x number
[-]
Axial fan x 1
Motor power input
[W]
23
54
Noise level (pressure)
Cooling
[dB(A)]
46
49
50
Heating
46
49
50
Noise level (power)
Cooling
61
62
62
Heating
62
65
65
Heat exchanger
Dimension
(H x W x D)
[mm] 504 x 650 x 18.2
546 x 876 x 18.2
546 x 842 x 18.2
Fin spacing
1.30
Number of rows x
Number of tubes in one
row
[-] 1 x 24 2 x 26
Tube material
[-]
Copper
Fin material
[-]
Aluminium
Compressor
Type x number
[-]
Rotary x 1
Double rotary x 1
Motor power input
[W]
550
1100
Oil in
Type
[-]
RB74AF
POE
Housing
Material
[-]
Steel sheet
Colour
[-]
Beige
Dimension
(H x W x D)
Net dimensions
[mm]
541 x 663 x 290
578 x 790 x 300
Dimensions including
packaging
602 x 804 x 375
648 x 910 x 380
Weight
Net weight
[kg]
23
40
Weight including
packaging
26
44
Connecting lines
Diameter
Liquid
[mm]
Ø6.35 (ø1/4 in.)
Gas
Ø9.52 (ø3/8 in.)
Ø12.70 (ø1/2 in.)
Without refrigerant
recharge
[m]
15*
Max. length
20
25
Max. height difference
15
Operating range
Cooling
[°C]
-10 to 46
Heating
-15 to 24
Condensate drain line
Material
[-]
PP+LLDPE
-
Diameter (inner / outer)
[°C]
Ø 13.0 / Ø 16.0
to 16.8
-
*For sets with FS units see the DUPLEX R SET manual.

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Model
FG24 / FS24
FG30 / FS30
FG36 / FS36
For refrigerant
Type
R410A
R410A
R410A
[g]
1500
2100
2100
Model
ROG24LBCB AO*G30LETL AO*G36LETL
Power supply
[V]
230 V / 50 Hz
Permitted power supply range
[V]
198 – 264 V / 50Hz
Max. sup. current
[A]
15.7
17.0
20.0
Fan
Air flow
rate
Cooling
[m3/h]
2850
3600
3800
Heating
2700
3600
3800
Type x number
[-]
Axial fan x 1
Motor power input
[W]
49
100
Noise level (pressure)
Cooling
[dB(A)]
53
53
54
Heating
54
55
55
Noise level (power)
Cooling
66
68
69
Heating
66
69
70
Heat exchanger
Dimension
(H x W x D)
[mm]
672 x 881 x 18.2
672 x 851 x 18.2
798 x 900 x 36.4
Fin spacing
1.30
Number of rows x
Number of tubes in one
row
[-] 2 x 32 2 x 38
Tube material
[-]
Copper
Fin material
[-]
Aluminium
Compressor
Type x number
[-]
Double rotary x1
Double rotary x 1
Motor power input
[W]
1200
2100
Oil in
Type
[-]
RB68
POE (RB68)
Amount
[cm3]
550
-
Housing
Material
[-]
Steel sheet
Colour
[-]
Beige
Dimension
(H x W x D)
Net dimensions
[mm]
716 x 820 x 315
830 x 900 x 330
Dimensions including
packaging
776 x 961 x 450
970 x 1050 x 445
Weight
Net weight
[kg]
42
61
Weight including
packaging
47
68
Connecting lines
Diameter
Liquid
[mm]
Ø6.35 (ø1/4 in.)
Ø9.52 (ø3/8 in.)
Gas
Ø15.88 (ø5/8 in.)
Ø15.88 (ø5/8 in.)
Without refrigerant
recharge [m]
15*
20*
Max. length
30
50
Max. height difference
20
30
Operating range
Cooling
[°C]
-10 to 46
-15 to 46
Heating
-15 to 24
Condensate drain line
Material
[-]
PP+LLDPE
-
Diameter (inner / outer)
[°C]
Ø 13.0 /
Ø 16.0 to 16.8
-
*For sets with FS units see the DUPLEX R SET manual.

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3.2 Dimensions and drawings of condensation units
3.21 Model FG09 (with refrigerant R32)
3.22 Model FG14. FG18 (with refrigerant R410A)

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3.23 Model FG24 (with refrigerant R410A)
3.24 Model FG30. FG36 (with refrigerant R410A)

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3.3 Acoustic parameters of each model
The values below were measured according to the schematic as Lp:
3.31 Model FG09 (for R32) – cooling – heating
3.32 Model FG14 (for R410A) – cooling – heating

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3.33 Model FG18 (for R410A) – cooling – heating
3.34 Model FS24 (for R410A) – cooling – heating
3.35 Model FG30 (for R410A) – cooling – heating

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3.36 Model FG36 (for R410A) – cooling – heating
3.4 Power parameters of individual models
3.41 Unit FG09
Heating capacity
Cooling capacity
Outdoor
temperature
Total
power
Power
input
COP
[°C]
[kW]
[kW]
[-]
-15
2.11
1.09
1.94
-10
2.54
1.15
2.21
-5
2.96
1.20
2.47
0
3.39
1.26
2.69
5
3.81
1.32
2.89
7
3.98
1.34
2.97
10
4.24
1.37
3.09
15
4.37
1.38
3.17
Outdoor
temperature
Total
power
Sensible
power
Power
input
ERR
[°C]
[kW]
[kW]
[kW]
[-]
20
3.02
2.64
0.50
6.04
25
2.91
2.61
0.52
5.60
30
2.79
2.56
0.56
4.98
35
2.64
2.50
0.62
4.26
Values at air flow rate 750 m3/h
Values for indoor temperature 24 °C.
At air flow rate 700 m3/h.
Values for indoor temperature 25 °C, at wet-bulb
temperature18 °C.
3.42 Unit FG14
Heating capacity
Cooling capacity
Outdoor
temperature
Total
power
Power
input
COP
[°C]
[kW]
[kW]
[-]
-15
3.84
2.34
1.64
-10
4.41
2.34
1.88
-5
4.97
2.60
1.91
0
5.61
2.83
1.98
5
6.18
2.83
2.18
7
6.17
2.55
2.42
10
6.36
2.56
2.48
15
6.11
2.25
2.72
Outdoor
temperature
Total
power
Sensible
power
Power
input
ERR
[°C]
[kW]
[kW]
[kW]
[-]
20
5.79
3.49
1.27
4.56
25
5.56
3.47
1.41
3.94
30
5.30
3.40
1.56
3.40
35
5.24
3.38
1.85
2.83
Values at air flow rate 800 m3/h
Values for indoor temperature 24 °C.
At air flow rate 680 m3/h.
Values for indoor temperature 25 °C, at wet-bulb
temperature18 °C.

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3.43 Unit FG18
Heating capacity
Cooling capacity
Outdoor
temperature
Total
power
Power
input
COP
[°C]
[kW]
[kW]
[-]
-15
4.53
2.71
1.67
-10
5.21
2.83
1.84
-5
5.87
2.83
2.07
0
6.65
2.83
2.35
5
7.28
2.83
2.57
7
7.12
2.62
2.72
10
7.34
2.63
2.79
15
7.05
2.31
3.05
Outdoor
temperature
Total
power
Sensible
power
Power
input
ERR
[°C]
[kW]
[kW]
[kW]
[-]
20
5.75
3.44
1.40
4.11
25
5.52
3.44
1.47
3.76
30
5.28
3.43
1.54
3.43
35
5.04
3.43
1.61
3.13
Values at air flow rate 800 m3/h
Values for indoor temperature 24 °C.
At air flow rate 680 m3/h.
Values for indoor temperature 25 °C, at wet-bulb
temperature18 °C.
3.44 Unit FG24
Heating capacity
Cooling capacity
Outdoor
temperature
Total
power
Power
input
COP
[°C]
[kW]
[kW]
[-]
-15
5.57
3.07
1.81
-10
6.26
3.28
1.91
-5
6.91
3.27
2.11
0
7.77
3.25
2.39
5
8.40
3.01
2.79
7
8.64
2.91
2.97
10
8.93
2.92
3.06
15
8.11
2.25
3.60
Outdoor
temperature
Total
power
Sensible
power
Power
input
ERR
[°C]
[kW]
[kW]
[kW]
[-]
20
7.47
5.00
1.57
4.76
25
7.18
4.86
1.78
4.03
30
6.89
4.73
1.99
3.46
35
6.60
4.59
2.20
3.00
Values at air flow rate 930 m3/h
Values for indoor temperature 24 °C.
At air flow rate 930 m3/h.
Values for indoor temperature 25 °C, at wet-bulb
temperature18 °C.
3.45 Unit FG30
Heating capacity
Cooling capacity
Outdoor
temperature
Total
power
Power
input
COP
[°C]
[kW]
[kW]
[-]
-15
7.55
3.65
2.07
-10
7.95
3.66
2.17
-5
8.64
3.69
2.34
0
9.16
3.65
2.51
5
10.16
3.62
2.81
7
10.64
3.61
2.95
10
10.96
3.57
3.07
15
9.83
2.71
3.63
Outdoor
temperature
Total
power
Sensible
power
Power
input
ERR
[°C]
[kW]
[kW]
[kW]
[-]
20
12.06
7.71
3.06
3.94
25
11.64
7.56
3.41
3.41
30
10.81
7.35
3.44
3.14
35
9.70
6.71
3.45
2.81
Values at air flow rate 1600 m3/h
Values for indoor temperature 24 °C.
At air flow rate 1600 m3/h.
Values for indoor temperature 25 °C, at wet-bulb
temperature18 °C.

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3.46 Unit FG36
Heating capacity
Cooling capacity
Outdoor
temperature
Total
power
Power
input
COP
[°C]
[kW]
[kW]
[-]
-15
8.71
4.25
2.05
-10
8.77
4.29
2.04
-5
9.67
4.41
2.19
0
11.34
4.33
2.62
5
11.92
4.13
2.89
7
12.07
3.64
3.32
10
12.43
3.46
3.59
15
11.09
2.75
4.03
Outdoor
temperature
Total
power
Sensible
power
Power
input
ERR
[°C]
[kW]
[kW]
[kW]
[-]
20
13.14
8.69
3.08
4.27
25
13.07
8.79
3.43
3.81
30
12.57
8.51
4.17
3.01
35
10.86
7.44
4.16
2.61
Values at air flow rate 1800 m3/h
Values for indoor temperature 24 °C.
At air flow rate 1800 m3/h.
Values for indoor temperature 25 °C, at wet-bulb
temperature18 °C.
3.47 Conditions related to the above technical parameters of condensation units
Mode
Indoor temperature
Cooling
DB: 27 °C
WB: 19 °C
Heating
DB: 20 °C
WB: -- °C
Pipe length 5 metres
DB - dry-bulb temperature; WB – wet-bulb temperature
4. Installing and fitting the unit
•Upon delivery check the unit to make sure it was not damaged during transportation. If you find any damage inside or on
the surface of the unit, report it immediately in writing to the freight forwarder or supplier.
•Upon delivery check the unit and its accessories against the delivery note. Make sure the unit is the correct model and
in good conditions. Also check that the parameters and number of accessory items match.
•Handle the unit in such a way so as to avoid damaging the unit and causing any accidents. For protection and safety
reasons we recommend moving the unit around in its transport packaging. If this is not possible for any reason, do not
remove the transport packaging to make sure the unit does not come free and fall during handling.
•Check whether the installation base is rigid enough. If the unit is to be installed on the metal section of a building, the
electric insulation must comply with relevant standards.
•Make sure the place of installation is far enough from areas where flammable and explosive substances are stored to
avoid any explosion or fire in the event of a leak of such substances.
4.1 Place of installation
1) Install the outdoor unit in a place where it will be protected from dirt and moisture from rain as much as possible.
2) Install the outdoor unit in a place where it will be easy to connect to the indoor unit.
3) Install the outdoor unit in a place which makes it possible to easily drain the water condensed during the Heating mode
operation.
4) Do not place animals or plants in the path of hot air discharge.
5) Take the weight of the unit into consideration to choose a place where not much noise or vibrations will occur.
6) Choose a place which is able to bear the weight of the unit and where as little noise and vibrations as possible will occur.

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7) Provide the free space as specified in Chapter 4.11. to make sure the air flow is not blocked. To ensure efficient
operation leave three of the four directions of the external structure open.
8) Should the unit be exposed to strong wind during installation, it must be properly secured in place.
9) Install the unit in a place with a gradient of no more than 5°.
4.11 Recommended minimum clearances
4.2 Installation instructions
•The outdoor unit should be installed in such a way so as to prevent the air being discharged from the unit from being
taken back in and to make sure there is enough free space around the unit for maintenance and repairs.
•The place of installation should have a good rate of air change so that the unit could take in and discharge the necessary
volume of air. Check whether the air inlet and outlet of the unit is not blocked by obstacles. If there are any obstacles
blocking air intake / discharge, remove them.
•If the outdoor unit is installed on concrete or another kind of firm surface, it should be secured in place by M10 bolts and
nuts. Make sure the unit is in the proper position vertically and horizontally.
•The outdoor unit may only be lifted using the suspension holes provided. During lifting protect the unit from shock and
scratches to the metal parts to avoid corrosion.
•To meet the requirements for noise and vibration levels the unit should be installed using a rubber anti-vibration mat or
a spring damper.
•To install the drain tube insert the drain fitting into the drain hole in the base of the outdoor unit and connect the drain
tube to the fitting (if a drain fitting is used, the minimum installation height of the outdoor unit must be 5 cm).
•When running pipes through a wall, fit a bushing in the wall.

15
•During installation adhere to the required dimensions specified in this manual. The outdoor unit must be firmly secured
in the place of installation.
•Installation work can only be performed by properly qualified engineers.
4.21 Installation on a wall-mounting bracket set for air conditioning units (order code R316101)
To install the unit on the exterior of a building use a mounting bracket supplied as an optional accessory. This set
contains all necessary components and fixtures except for wall mounting material. Mounting into the wall should be
performed according to the type of structure and weight of the outdoor unit. Make sure to maintain the minimum
clearances from the adjoining structures. The bracket spacing should be chosen according to the specific type of
the condensation unit.
The recommended maximum load for the set is 150 kg.
The full set includes:
2 x
Profile beams 38/40, 520mm long
2 x
Mounting brackets 38/40
4 x
Anti-vibration discs DÄNNGULAST 43 x 11 mm
6 x
Plugs 38/40
4 x
T-head fixing bolts M10/30
4 x
Washers 8.5 x 28 mm
4 x
U-washers 8.5 x 36 x 2 mm
4 x
Fixing nuts M8 for profile 38/40
4 x
Hexagonal head bolts M8/20
4 x
Safety washers M10 pro profile beams 38/40
4.22 Installation on a floor-mounting bracket set for air conditioning units (order code R316111)
The unit is installed on a concrete base at least 500x800 in size. The minimum height above the ground must
be 150 mm (or higher in areas with snow levels). Make sure to maintain the minimum clearances from the
adjoining structures. Use the mounting bracket set for a concreted base which includes all necessary
components and fixtures.
The full set includes:
2 x
Profile beams 40/60, 480mm long
2 x
Profile beams 40/60, 800mm long
4 x
Quick-locking pegs M10 for fitting angle bars
4 x
Quick-locking pegs M8 for fitting angle bars
4 x
Hexagonal head screws for wood H10x120
4 x
Allen screws with washers M10x16
4 x
Safety washers M10 pro 40/60
8 x
Plugs for profile beams 40/60
4 x
Nylon wall plug 14
4 x
Anti-vibration discs DÄMMGULAST M8/M10
4 x
Washers DÄMMGULAST 8.5 x 28 with steel
washers
4 x
Hexagonal head bolts M8x60
It is necessary to provide condensate drainage from the outdoor unit; the condensate drain hole is located on the
bottom side of the unit.
The mounting bracket set consists of galvanized beams 40/60 with high bending strength.
Installation on a concrete base:
1) Drill four holes in the base of the unit; the diameter of the holes is 14 mm and their spacing is 360mm and
680mm
2) Insert the wall plugs in the holes.
3) Fit the end plugs on each end of the profiles.
4) Place the 800mm profile beam symmetrically over the holes and secure them to the plugs using bolts. Place
securing washers underneath the bolt heads.
7 )
5 )
8 )
9 )
10 )
11 )
12 )
360

16
5) Insert the four quick-action M10 nuts into the profiles, with their spacing matching the holes in the base feet
of the outdoor unit.
6) Secure the 480mm profiles to the quick-locking nuts already in place using bolts with washers.
7) Insert the quick-locking M8 nuts into the shorter profiles, with their spacing matching the holes in the base
feet of the outdoor unit.
8) Set the outdoor unit in place and slide anti-vibration blocks between the profiles and the base feet of the
unit.
9) Screw the unit on to the quick-locking nuts using screw M8, putting a washer and a rubber washer
underneath the screw head.
10) Do not use an elbow on the condensate drain line and let the condensed water drip directly on the ground;
alternatively, install an elbow and a hose with a heating cable (the signal for the cable can be provided from
terminal DEF of the ATW module – see the wiring diagram).
4.3 Connecting the refrigerant line
1) Cut the connecting pipe using a pipe cutter and remove any burrs.
2) While doing that hold the pipe with its end pointed downwards so that no chips or sawdust can get inside the pipe.
3) Take the sleeve nuts from the shut-off valve of the outdoor unit and the bag with accessories for the indoor unit, slide
them onto the pipe and then use a tool such as a pipe expander / expanding mandrel to widen the ends of the connecting
pipe.
4) Check if the expanded part is uniform and has no cuts.
4.31 Connecting piping dimensions
Pipe diameter (inches)
Torque
1/4‘‘
15-30 (Nm)
3/8‘‘
35-40 (Nm)
Ins
ulation
Fixing strap
(x4)
Thermal insulation
(for
liquid-carrying pipes)
Thermal insulation
(for gas pipes)
G
as pipe
Liquid
-carrying pipe
Copper pipe
Lubricated with oil
(to reduce nut friction)
Sleeve nut
Sleeve nut
Lubricated with oil
(to improve tightness)
Torque wrench
Spanner
Pipe joint

17
5/8‘‘
60-65 (Nm)
1/2‘‘
45-50 (Nm)
3/4‘‘
70-75 (Nm)
7/8‘‘
80-85 (Nm)
4.32 Testing procedure
1) Remove the plugs from the liquid valve, gas valve and service outlet.
2) Connect a hose on the low pressure side of the refrigerant manifold to the service gas outlet of the unit. The gas
and liquid line valves must remain closed for the time being to avoid a refrigerant leak.
3) Connect the hose used for air draining to the vacuum pump.
4) Open the valve on the low pressure side of the refrigerant manifold and start the vacuum pump. The valve on the
high pressure side of the refrigerant manifold must remain closed for the time being, otherwise aid draining would
not be possible.
5) The time of draining depends on the capacity of the unit. Usually it is up to 15 minutes for units 09/12K, 20 minutes
for units 18K, 30 minutes for units 24/30/36K and 45 minutes for units 42/48/60K. Also check whether the pressure
gauge on the low pressure side of the refrigerant manifold shows -1.0 Mpa (-75 cm Hg); if not, it means that there
is a leak in the line. Then check the valve completely and stop the vacuum pump.
6) Wait a moment to see of pressure in the system does not change – 3 minutes in units up to 18K, 5 minutes in
units 18K~24K and 10 minutes in units over 42K. During this time the pressure gauge on the low pressure side
should not show more than 0.005 Mpa (0.38 cm Hg).
7) Open the liquid line valve and let a portion of the refrigerant move to the connecting line to even out pressure on
the inside and outside part of the connecting line and prevent air from entering the connecting pipe when the hose
is disconnected. Remember that the gas and liquid line valves can only be fully opened after disconnecting the
refrigerant manifold.
8) Put the liquid line valve, gas valve and service outlet plugs back in place.
4.33 Recharging a refrigerant for R410A
Model
Overcharge in
Recharge g/m
Max. length
FG14
1250/15
20
25
FG18
1250/15
20
25
FG24
1500/15
20
30
FG30
2100 / 20
40
50
FG36
2100 / 20
40
50
*For sets with units FS – see the DUPLEX R SET manual.
Pressure gauge (low pressure)
Valve (low pressure)
Connecting pipe
(for the indoor unit)
Refrigerant
manifold
Pressure gauge (high pressure)
Valve (high pressure)
Liquid valve
Gas valve
Service outlet
Cover
Cover
Cover
Hose
Hose
Vacuum pump
Connecting pipe
Service outlet
Hose with valve pin
Vacuum pump valve
Service
outlet
Vacuum pump
Pressure gauge (low pressure)
Pressure gauge (high pressure)
Refrigerant manifold

18
4.34 Recharging a refrigerant for R32
Model
Overcharge in
Recharge g/m
Max. length
FG09
600/15
20
20
4.4 Other requirements for refrigerant R32
•All joints inside the building must be permanent.
•The size of the space where the indoor unit is installed must correspond to the minimum area with respect to the total
refrigerant charge in the system:
4.5 Condensate drainage
The basic set of components does not include a condensate drainage kit for the outdoor unit. This drainage can be provided by
two ways.
4.51 Free-flowing (to the foot of the house / to the wastewater system)
The condensate is led off to the facade using a hose to flow freely to the ground (on a bracket).
The condensate is led off to the foundation base using a hose (on the foundation).
The condensate is led off from the condensation unit using a hose to the other side of the exterior wall (to the
wastewater system of the building).
Recommendations:
-The line must slope down.
Wall-mounted
Weight
(kg)
Surface area
(m2)

19
-To protect the condensate freely flowing to the ground from freezing add resistance wire responding to the
exterior temperature which defrosts the condensate in case of freezing to allow it to flow freely.
-The condensate should run through a thermally insulated pipe or a line fitted with electric resistance wire for
heating.

20
4.52 Using a drain pipe buried below the frost line
Drawing:
The pipe runs from the outlet of the condensation unit and is buried below the frost line in a gravel or pebble bed. The
condensate is allowed to freely soak into the ground below the frost line.
Recommendations:
-The line must slope down.
-To protect the condensate freely flowing to the ground from freezing add resistance wire responding to the
exterior temperature which defrosts the condensate in case of freezing to allow it to flow freely.
-The condensate should run through a thermally insulated pipe.
-In cold climates with calculated outdoor temperatures of or -15°C we recommend using a condensate drain
heating kit.
5. Instrumentation and controls, electrical wiring
5.1 Instrumentation and controls
Any work on the control system (changing / replacing sensors, checking the connections of
individual components etc.) must be performed without any voltage present (after the power supply
was switched off)!
5.11 Starting up
•After connecting the refrigerant manifold to the power supply the following must be switched on:
-A power breaker for the outdoor air conditioning unit (single-phase, recommended protection according to
chapter 5.12)
•In the event of a power cut the unit returns to the preset mode without any action required by the operator.
5.12 Electrical parameters
Outdoor
unit
FG
Model
Nominal
power
Electrical characteristics
Communication
Cooling
Heating
Max.
cooling
power input
Max.
heating
power input
Power
supply
voltage
Max.
supply
current
Recommend
ed
protection
Power
supply cable
Cu
Communicat
ion cable
Cu
Communicat
ion type
kW
kW
kW
kW
V
A
A
mm2
Drain pipe
Compacted filler
(excavated earth)
Sand filler 0-7mm
Sand bed 0-7mm
Safety foil approx.
300 mm above the pipe
Condensation unit (= KJ)
Hole in the base
Concrete foundation KJ
B10/B15, Reinforcement mesh, min. 500x800
Concrete base layer
+ reinforcement mesh
Floor-mounting bracket set (KJ)
Terrain
Ground below frost line
Ground below frost line