Requirements ENGINEERING OF A SPLIT SYSTEM 12.2 System completion 12.3 Commissioning the system Outdoor unit 12.3.1 Activities carried out by OCHSNER Installation location Minimum clearances SPECIFICATION Foundation for the outdoor unit Data table Sound 13.1 Temperature sensor pressure drop curve Refrigerant lines 13.1.1...
► Maintenance work such as checking the electrical the OCHSNER homepage in the download area. safety of the appliance may only be carried out by a qualified contractor. Safety information ►...
- In the event of a leak, avoid contact with the ► Commissioning of the appliance may be carried out refrigerant. only by OCHSNER Customer Service or by customer - Bear in mind that refrigerant can be odourless. service partners authorised by OCHSNER. ►...
The outdoor air is routed through the outdoor unit by means of a fan. The indoor and outdoor units are connected through refrigerant lines. Due to the defrosting mode integrated into OCHSNER air/ water heat pumps, the system also operates flawlessly at temperatures below -15°C.
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How split systems work 00_400_200_202_01_split_Funktionsweise-EN | www.ochsner.com...
Indoor unit hydraulics The plate heat exchanger is built of stainless steel (alloy 316) and insulated on all sides against condensation and heat loss. The system must be engineered using an OCHSNER standard hydraulic schematic or an OCHSNER special hydraulic system. 4.3.2 Outdoor unit The outdoor unit is intended to be installed outside.
1 Name plates on outdoor unit 4.3.3 Heat pump control unit The OCHSNER heat pump controller includes devices capable of controlling heat pump heating systems with a cooling function as well as DHW heating. In its standard version, the heat pump control unit consists of the OTE controller and the master controller, both of which are in- stalled in the indoor unit.
High wind loads on the outdoor unit can cause problems with defrosting in defrosting mode. Avoid installation in an open and exposed location with high expected wind loads (e.g. flat roof of a house in a raised location). www.ochsner.com | 00_400_200_202_06_split_Planung_Errichtung-KMF-EN...
Preparing the refrigerant lines Information The refrigerant connections (suction gas and liquid lines) Only OCHSNER customer service or authorised on the indoor and outdoor units are supplied soldered OCHSNER customer service partners may con- closed. nect the refrigerant lines to the indoor and outdoor units.
2 Appropriate sealing of the refrigerant lines as they pass through the wall conduit 3 Refrigerant lines in open air (enclosed in thermal in- sulation with UV protection) 4 Reinforced strip foundation 5 Drainage pipe (frostproof) 6 Foundation www.ochsner.com | 00_400_200_202_06_split_Planung_Errichtung-KMF-EN...
Installation room must not be subject to a risk of ex- plosion arising from dust, gas or vapour Maintaining minimum clearances Observing the specified minimum clearances for the indoor unit ensures: ► Correct installation of the appliance ► That it operates fault-free 00_400_200_202_06_split_Planung_Errichtung-KMF-EN | www.ochsner.com...
Max. installation altitude (above objects on two sides, provided the machine-specific sea level) minimum clearances are observed. AIR 85 1000 ► It is permissible to install the outdoor unit under a roof if the unit is permanently surrounded by open space...
Fill the foundation trench with coarse gravel. 1 Gravel bed 2 Drainage pipe (frostproof) » Fill the underground sewer pipes with concrete. 3 Spot foundation (with underground sewer pipe) AIR 85 1870 2045 Use underground sewer pipes when installing spot foun- dations. 00_200_202_03_01_002_AIR85-EN | www.ochsner.com...
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In terms of roof structure loads, allow for an ice load 2 Drainage pipe (frostproof) of 400 kg/m² in addition to the dead weight of the 3 Strip foundation outdoor unit. AIR 85 2250 1135 When laying strip foundations we recommend the following approach: »...
Use suitable fittings for bends ► Bending radii of ≥ 1 m are treated as straight runs Suction gas line Copper pipes Requirement Diameter AIR 85 R290 (hard, in rods) to EN 42x2 (1x) 12735-1 Fittings Requirement AIR 85 Max. permissible operating pressure 45 bar Max.
Machine-specific engineering and preparation Fittings Requirement AIR 85 Max. permissible operating pressure 45 bar Max. permissible temperature 65°C Used with refrigerant R410A Indoor unit » Do not install the indoor unit in a building of light- weight construction (floors and walls).
2 Supply to main power circuit (compressor) » Ensure there is equipotential bonding of the refrig- 3 PSU signal contact erant lines via an equipotential bonding connector (min. 10 mm²). AIR 85 C14A Fuse protection, main power circuit » Fuse protection 1x C63A 3p Insulate the equipotential bonding to prevent the ac- cumulation of condensation.
Defrost sensors (TQA, TQE): Bus leads Example: 0.8 mm² (eBus connections from OTE Y(ST)Y 2x2x0.8 AIR 85 C14A The two defrost sensors are factory-installed in the controller to remote control- (shielded cable evaporator on the outdoor unit. lers or auxiliary modules and...
Machine-specific engineering and preparation DHW sensor (TB): Uninterrupted tariff OCHSNER DHW tanks are fitted with appropriate sleeves In the case of tariff switching with uninterrupted power for installing the sensor. supply, the heat pump is temporarily shut down by the power supply utility.
The standard packaging of the appliance does not provide protection against the weather or sea water. » Remove the loose wooden sections. ► The appliance may be stored and transported only at temperatures of between -20°C and +45°C. www.ochsner.com | PIA-982027-AIR 85-in-EN...
9.1.3 Fitting the adjustable feet » » Fit the 4 adjustable feet using 4 x M16 nuts. Slide back the control box cover. » Lift the control box cover up and away. PIA-982027-AIR 85-in-EN | www.ochsner.com...
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Undo and remove the 2 fixing screws for the left-hand appliance casing panel, at the back of the appliance. » Lift the front appliance casing panel up and away. » Lift the left-hand appliance casing panel up and away. www.ochsner.com | PIA-982027-AIR 85-in-EN...
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Undo and remove the 3 fixing screws for the front ap- Dismounting the bottom casing sections pliance casing panel, inside the appliance. » Undo and remove the fixing screw for the left-hand appliance casing panel, inside the appliance. PIA-982027-AIR 85-in-EN | www.ochsner.com...
» Install the appliance casing sections in reverse order. » For each appliance casing section, ensure that it has fully clicked into place at all points at the bottom. www.ochsner.com | PIA-982027-AIR 85-in-EN...
The standard packaging of the appliance does not provide protection against the weather or sea water. ► The appliance may be stored and transported only at temperatures of between -20°C and +45°C. ► The appliance must be stored in its transport packaging. PIA-982027-AIR 85-in-EN | www.ochsner.com...
(WNA) to the heat pump may be made only by a that no dirt gets into them. qualified contractor. Information For maintenance purposes, a shut-off valve should be fitted to every hydraulic line close to the connec- tion point on the heat pump. www.ochsner.com | PIA-982027-AIR 85-in-EN...
(DHW charging, heating, cooling mode via separate cooling heat pump buffer tank, etc.). (See page 40, Specification) » Install suitable circuit balancing valves in order to regulate the system appropriately. PIA-982027-AIR 85-in-EN | www.ochsner.com...
Ensure that in cooling mode the appliance casing on If necessary, ensure that the fill water is pro- the indoor unit is fully and correctly installed. (See fessionally softened and desalinated. page 28, Assembling the appliance casing) www.ochsner.com | PIA-982027-AIR 85-in-EN...
» signed correctly according to colour. Undo and remove the 4 nuts on the two metal plates at the cable entries. » Remove the two metal plates at the cable entries. PIA-982027-AIR 85-in-EN | www.ochsner.com...
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Main electrical circuit Control circuit Compressor and fan supply PSU signal contact Heat generator pump 1 TK Fault message, fans 1 1&2 compressor (fan) Power supply, heat source sys- tem (outdoor unit) 2 TK Fault message, fans 2 www.ochsner.com | PIA-982027-AIR 85-in-EN...
Yellow (YE) Brown (BR) 15 16 N PE Heating circuit mixing valve (MVH) White (WH) 10.3 Electrical connection of the outdoor unit » Remove the side appliance casing panel. (See page 30, Dismantling the appliance casing) PIA-982027-AIR 85-in-EN | www.ochsner.com...
Material damage Permanent operation of the heat generator pump before commissioning of the system is completed, can result in damage to the pump or system. » Switch off the power supply to the controller after initial start-up. www.ochsner.com | PIA-982027-AIR 85-in-EN...
12. Completion and commissioning ► A DHW tank is present and has been filled for OCHSNER Customer Service or an authorised customer commissioning. service partner must be requested to complete and com- mission the system. Commissioning appointments must ►...
► For heat pumps with OTS controller: The heat pump has a stable internet connection. Information OCHSNER accepts no liability for damage (e.g. to Information plate heat exchangers) caused by poor water qual- OCHSNER Customer Service or a customer ser- ity.
WARNING: Burns Work on the refrigerant circuit may be carried out ► Handing the system over to the system user or end only by OCHSNER Customer Service or by cus- customer. tomer service partners authorised by OCHSNER. ► Explanation of the basic functions of the heat pump system (controller operation, etc.).
>16 A: EN 61000-3-11 Harmonics >16 A: EN 61000-3-12 Max. network impedance (Zmax) 0,472 AIR 85 C14A Main power circuit Rated voltage range ~380-400 3/N/PE Rated current Max. starting current 95,6 Fuse protection 1x C63A 3p www.ochsner.com | PIA-982027-AIR 85-td-EN...
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ENERGY EFFICIENCY (AVERAGE CLI- AIR 85 C14A MATE ZONE) at max. flow temperature (heating) °C Energy efficiency class (D to A+++) P rated Efficiency ETAs 169,6 136,7 SCOP 4,32 3,49 at min. flow temperature (cooling) °C SEER 3,26 PIA-982027-AIR 85-td-EN | www.ochsner.com...
149,90 16. Performance diagram for 117,00 heating 92,40 14. Limits of use for heating X Outdoor air temperature [°C] Y Heating output [kW] X Outdoor temperature [°C] Y Flow temperature [°C] 1 Maximum design flow temperature PIA-982027-AIR 85-td-EN | www.ochsner.com...
Performance diagram for cooling 17. Performance diagram for cooling X Outdoor air temperature [°C] Y Cooling capacity [kW] www.ochsner.com | PIA-982027-AIR 85-td-EN...
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System principle schematic PIA-982027-AIR 85-td-EN | www.ochsner.com...
Dimensions and connections 20. Dimensions and connections 20.1 Indoor unit 1 Liquid line (refrigerant) 2 Suction gas line (refrigerant) 3 Heating water flow 4 Heating water return PIA-982027-AIR 85-td-EN | www.ochsner.com...
Dimensions and connections 20.2 Outdoor unit 1 Suction gas line (refrigerant) 2 Liquid line (refrigerant) 3 Outdoor unit left 4 Outdoor unit right 5 Connecting elements www.ochsner.com | PIA-982027-AIR 85-td-EN...
Refrigerant R410A The refrigerant circuit of the appliance is filled with R410A refrigerant. R410A refrigerant is a fluorinated greenhouse gas listed in the Kyoto Protocol. R410A refrigerant must not be discharged into the atmosphere. www.ochsner.com | PIA-982027-AIR 85-EN01...
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