ATREA FG09 - Introduction; Description of the Unit; Internal Arrangement Diagram

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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