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HIGH EFFICIENCY BRINE/WATER HEAT PUMPS OPERATING AND INSTALLATION MANUAL ► TERRA 6 ► TERRA 8 ► TERRA 11 ► TERRA 14 ► TERRA 18 ► TERRA 22 ► TERRA 27 TRANSLATION OF THE ORIGINAL MANUAL...
Failure to observe this information will result in seri- ous injury or death. WARNING Failure to observe this information may result in se- rious injury or death. CAUTION Failure to observe this information may result in non-serious or minor injury. www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
For this reason, the stated perfor- ► Commissioning and maintenance of the appliance mance figures can differ from plant-specific performance may be carried out only by OCHSNER Customer Ser- data. vice or by customer service partners authorised by OCHSNER.
6 Geothermal energy as a heat source (brine circuit) Appliance components 3.2.1 Indoor unit The indoor unit is intended to be installed only inside the building. The indoor unit contains the compressor, which in terms of sound technology is acoustically decoupled a www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
3.2.2 Heat pump control unit The OCHSNER heat pump controller includes devices for controlling heat pump heating systems with a cooling function as well as DHW heating. In its standard version,...
Ensure easy access to the safety devices. It an increase in consumption of 5-7%. must be possible to perform an emergency shutdown at all times. 4.1.2 Ventilation Any ventilation should be intermittent, especially during the heating period, and according to your own require- www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
If you have a problem that you cannot resolve, contact » For screed drying mode, use an electric im- the system installer, a qualified contractor or OCHSNER mersion heater as the heat generator. The Customer Service. electric immersion heater should be installed in the heat pump flow (indoor unit option), in Faults are displayed as”Er XXX”on the master controller of...
► 1x indoor unit: The following components are installed in the indoor General safety information unit: TERRA 6 TERRA 18 We guarantee trouble-free function and operational reliabil- TERRA 8 TERRA 22 ity only if the original accessories and spare parts intended...
9.1.1 Keep minimum clearances Observing the specified minimum clearances for the indoor unit ensures: ► Correct installation of the appliance ► Fault-free operation ► Ability to carry out maintenance on the appliance. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
0.8 m/s, as this can cause in- is the system installer’s responsibility and must be carried creased noise emissions. out in compliance with OCHSNER guidelines. For reliable operation, observe a temperature dif- ferential of 3 K between the evaporator inlet and outlet.
► All power supply cables must be protected against surges and short circuits. ► For the optional electric booster heater (8.8 kW), a suitable high limit safety cut-out (HLSC) is installed in the indoor unit. www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
Cables from main distributor to indoor unit starting erating protec- current current tion Description Wires Min. cable Main power cir- TERRA 6 HPLA 14,0 C16A cross-sec- cuit tion TERRA 8 HPLA 21,5 C16A (compressor Supply to electric booster TERRA 11 HPLA...
PSU signal contact cable. (see page 27, DHW sensor (TB): Electrical connection of the indoor unit) OCHSNER DHW cylinders are fitted with appropriate fe- male sockets for installing the sensor. Shutdown by means of a tariff contactor »...
- Ensure that the appliance casing is not dam- Undo and remove the eight woodscrews on the two aged during transport. transport fixing brackets (left and right) securing the - The transport aids are not suitable for lifting by appliance to the one-way pallet. crane. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
Undo and remove the two fixing screws for the control box cover, on the rear of the appliance. » Slide back the control box cover. Lift the control box cover up and away. 1 Lifting sling 2 Mounting bolt 3 Appliance frame www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
» Undo and remove the two fixing screws for the right- hand appliance casing panel, inside the control box. » Lift the right-hand appliance casing panel up and away. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
» Before connecting the heat pump, flush the pipework through with filtered flushing water according to the relevant standards. Foreign bodies such as rust, sealing material and swarf will impair the operational reliability of the heat pump. www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
10.2.2 Safety valve drain Information The indoor unit has an internal safety valve for the heat sink system (DHW, heating water). » Observe national and regional regulations re- garding the design of the drain and prescribed regular operational tests. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
Set the charge pressure on the DEV accord- ing to the height of your system and the filling On the TERRA 6, TERRA 8, TERRA 11 and TERRA 14 pressure of your heating system. (M2 hydraulic version) indoor units, the multifunctional as- sembly (MFA) has a quick-action air vent valve for venting the heating system.
The antifreeze must not be mixed with corrosive raw water (pH value below 7.0), distilled water or rain water. Information When using ethylene glycol as an antifreeze: » Ensure an antifreeze percentage of 25-30% for frost protection of -12 to -15°C. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
Material damage The liquid (brine) drained via the right-hand safety valve must not end up in the domestic drain! » Collect the liquid in a brine collection contain- 1 Drain and fill valve www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
10.4.2 Electrical connection of the indoor unit » Remove the control box cover. (see page 20, Dis- assembling the appliance casing) » Undo and remove the four nuts on the two metal plates at the cable entries. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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Information Connect the PE conductor from the power cables to the earth rail in the control box. WARNING: Electrocution When the appliance power supply is on, there will always be 230 VAC at the PSU signal contact. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
INSTALLATION | Commissioning 11. Commissioning 11.3 Adjusting the flow rate OCHSNER Customer Service or an authorised custom- The nominal flow rates of the heat sink and heat source er service partner must be requested to commission the system must be ensured in each operating mode (DHW system.
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15.0 l/min ENTER ENTER ENTER » » Read off the measured flow rate on the master con- Adjust the flow rate to its correct level by turning the troller display. adjusting screw on the heat generator pump. 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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INSTALLATION | Commissioning TERRA 6 TERRA 8 TERRA 11 TERRA 14 Hydraulic variant Connection dimension [inch] DN 32 1 1/4” DN 32 1 1/4” DN 32 1 1/4” DN 32 1 1/4” Heat generator pump Yonos Para HPS Yonos Para HPS...
INSTALLATION | Commissioning 11.4 Pumps in the indoor unit Stratos Para 25/1-8 Heat generator pump (HGP) Heat pump Yonos Para HPS 25/7.5 TERRA 6 TERRA 8 TERRA 11 TERRA 14 Stratos Para 25/1-8 TERRA 18 TERRA 22 TERRA 27 Heat source pump (HSP)
The heat sink system has been flushed, filled and Information vented according to the relevant standards. OCHSNER will accept no liability for damage (e.g. to plate heat exchangers) caused by poor water ► System fill water of a quality compliant with the rel- quality.
Any additional work required will be charged Special work such as system venting, connecting to the system installer. electrical cables, additional training, etc., which is not included in OCHSNER‘s scope of delivery, will be invoiced separately. Activities carried out by OCHSNER: ►...
Explanation of the basic functions of the heat pump system (controller operation, etc.). Information OCHSNER customer service will provide an ex- planation of the basic functions of the heat pump system (controller operation, etc.). If the system user is not present for commissioning, the system installer will assume responsibility for this explana- tion.
Switch the safety device back on. If the safety device triggers again after too cold. being switched back on, contact a qualified contractor or OCHSNER Customer Service. The appliance is leaking The drain for the safety valve is Clean the safety valve drain.
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Power shutdown? Check the wiring of the Modbus cable between indoor and outdoor units. Otherwise check by OCHSNER Customer Service Er242: CAN bus communication fault Check wiring of CAN bus cable and Modbus cable (possible consequential fault of Er 241), otherwise check by OCHSNER Customer Service www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
Press the reset button on the rear of the appliance to reset the high limit safety cut-out. The reset button can be reached by hand from the left-hand side. 1 Reset button for high limit safety cut-out on rear of appliance 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
We draw your attention to the fact that statutory regulations require regular testing of heating systems by the system user. The refrigerants used in OCHSNER heat pumps are non-flammable, non-toxic and ozone neutral. Heat pumps 1 Internal safety valve of the heat sink system in TER- are refrigeration equipment and are subject to the pro- RA 6, TERRA 8, TERRA 11 and TERRA 14.
INSTALLATION | Appliance maintenance 1 Internal safety valve of the heat source system. 13.2 Maintenance contract OCHSNER offers a wide range of maintenance contracts. You can find more information at www.ochsner.com. Benefitsofamaintenancecontract ► Annual inspection fulfils the statutory requirements (of, for example, the F-gas Regulations).
INSTALLATION | Specification 14. Specification 14.1 Heat pumps for three-phase alternating current 14.1.1 Data table TERRA 6 HPLA TERRA 8 HPLA TERRA 11 HPLA TERRA 14 HPLA INDOOR UNIT: Hydraulic variant M2-1/M2-2/M2-3/M2-4 M2-1/M2-2/M2-3/M2-4 M2-1/M2-2/M2-3/M2-4 M2-1/M2-2/M2-3/M2-4 Dimensions HxWxD [mm] 1286x600x680 1286x600x680...
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INSTALLATION | Specification TERRA 6 HPLA TERRA 8 HPLA TERRA 11 HPLA TERRA 14 HPLA Heat sink circulation pump (heat internal Yonos Para 25/7.5 Yonos Para 25/7.5 Yonos Para 25/7.5 Yonos Para 25/7.5 generator pump) Residual head I M2-1 [mbar] REFRIGERANT CIRCUIT: No.
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Stratos Para 25/1-12 Stratos Para 25/1-12 Residual head l [mbar] Information Data on sound pressure levels refer to operation at full load at a distance of 1 m. Sound pressure and sound power levels are given +/-3 dB(A). 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
INSTALLATION | Specification 14.2 Heat pumps for single phase alternating current 14.2.1 Data table TERRA 6 HPLB TERRA 8 HPLB TERRA 11 HPLB TERRA 14 HPLB INDOOR UNIT: Hydraulic variant M2-1/M2-2/M2-3/M2-4 M2-1/M2-2/M2-3/M2-4 M2-1/M2-2/M2-3/M2-4 M2-1/M2-2/M2-3/M2-4 Dimensions HxWxD [mm] 1286x600x680 1286x600x680 1286x600x680...
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INSTALLATION | Specification TERRA 6 HPLB TERRA 8 HPLB TERRA 11 HPLB TERRA 14 HPLB No. of refrigerant circuits [pce] Refrigerant R410A R410A R410A R410A Refrigerant charge [kg] 1,72 2,03 COMPRESSOR: Type Fully hermetic/scroll Fully hermetic/scroll Fully hermetic/scroll Fully hermetic/scroll...
INSTALLATION | Specification 14.3 Performance diagrams TERRA 6 HPLA 35°C 45°C 50°C 60°C X Brine temperature [°C] Y Heating output [kW], component tolerance/output tolerance ±10% -5 -3 -1 1 9 11 13 15 17 19 -5 -3 -1 1 9 11 13 15 17 19 X Brine temperature [°C]...
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-5 -3 -1 1 9 11 13 15 17 19 X Brine temperature [°C] X Brine temperature [°C] Y Coefficient of performance (COP), component toler- Y Power consumption [kW], component tolerance/out- ance/output tolerance ±10% put tolerance ±10% 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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-5 -3 -1 1 9 11 13 15 17 19 X Brine temperature [°C] X Brine temperature [°C] Y Coefficient of performance (COP), component toler- Y Power consumption [kW], component tolerance/out- ance/output tolerance ±10% put tolerance ±10% www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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-5 -3 -1 1 9 11 13 15 17 19 X Brine temperature [°C] X Brine temperature [°C] Y Coefficient of performance (COP), component toler- Y Power consumption [kW], component tolerance/out- ance/output tolerance ±10% put tolerance ±10% 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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-5 -3 -1 1 9 11 13 15 17 19 X Brine temperature [°C] X Brine temperature [°C] Y Coefficient of performance (COP), component toler- Y Power consumption [kW], component tolerance/out- ance/output tolerance ±10% put tolerance ±10% www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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-6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 X Brine temperature [°C] X Brine temperature [°C] Y Coefficient of performance (COP), component toler- Y Power consumption [kW], component tolerance/out- ance/output tolerance ±10% put tolerance ±10% 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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-6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 X Brine temperature [°C] X Brine temperature [°C] Y Coefficient of performance (COP), component toler- Y Power consumption [kW], component tolerance/out- ance/output tolerance ±10% put tolerance ±10% www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
Product data conform to EU Regulations on the Ecodesign colder medi- warmer of Energy Related Products (ErP). ηs Energy consumption [kWh] 3134 2772 1806 TERRA 6 P rated [kW] SCOP 5,59 5,55 LOW TEMPERATURE 35°C colder medi- warmer MEDIUM TEMPERATURE 55 °C...
INSTALLATION | Specification 14.4 Limits of use TERRA 27 LOW TEMPERATURE 35°C Limits of use for heating TERRA 6 HPL colder medi- warmer TERRA 27 HPL Spread ηs Energy consumption [kWh] 12794 11034 7088 Max. heat pump flow temperature (heat- [°C]...
INSTALLATION | Specification 14.5 System schematic diagrams TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-1) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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INSTALLATION | Specification Key to system principle schematic for TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-1) A Main distributor for 3-phase alternating current B Main distributor for single phase alternating current C Indoor unit control box D Indoor unit...
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INSTALLATION | Specification TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-2) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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INSTALLATION | Specification Key to system principle schematic for TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-2) A Main distributor for 3-phase alternating current B Main distributor for single phase alternating current C Indoor unit control box D Indoor unit...
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INSTALLATION | Specification TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-3) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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INSTALLATION | Specification Key to system principle schematic for TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-3) A Main distributor for 3-phase alternating current B Main distributor for single phase alternating current C Indoor unit control box D Indoor unit...
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INSTALLATION | Specification TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-4) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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INSTALLATION | Specification Key to system principle schematic for TERRA 6, TERRA 8, TERRA 11 and TERRA 14 (M2-4) A Main distributor for 3-phase alternating current B Main distributor for single phase alternating current C Indoor unit control box D Indoor unit...
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INSTALLATION | Specification TERRA 18, TERRA 22 and TERRA 27 (M4-1) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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9 Heating circuit circulation pump 1, direct (HCP 1) 10 Mixer sensor (TMK) 11 Heating circuit circulation pump 2, mixed (HCP 2) Power supply via high limit safety cut-out 12 Heating circuit mixing valve (MVH) 13 Control elements (eBus) 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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INSTALLATION | Specification TERRA 18, TERRA 22 and TERRA 27 (M4-2) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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8 Heating circuit circulation pump 1, direct (HCP 1) 9 Mixer sensor (TMK) 10 Heating circuit circulation pump 2, mixed (HCP 2) Power supply via high limit safety cut-out 11 Heating circuit mixing valve (MVH) 12 Control elements (eBus) 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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INSTALLATION | Specification TERRA 18, TERRA 22 and TERRA 27 (M4-3) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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9 Heating circuit circulation pump 1, direct (HCP 1) 10 Mixer sensor (TMK) 11 Heating circuit circulation pump 2, mixed (HCP 2) Power supply via high limit safety cut-out 12 Heating circuit mixing valve (MVH) 13 Control elements (eBus) 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
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INSTALLATION | Specification TERRA 18, TERRA 22 and TERRA 27 (M4-4) www.ochsner.com | 982001-TERRA-M2-M4-EN04.1...
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8 Heating circuit circulation pump 1, direct (HCP 1) 9 Mixer sensor (TMK) 10 Heating circuit circulation pump 2, mixed (HCP 2) Power supply via high limit safety cut-out 11 Heating circuit mixing valve (MVH) 12 Control elements (eBus) 982001-TERRA-M2-M4-EN04.1 | www.ochsner.com...
Refrigerant R410A The refrigerant circuit of this 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 | 982001-TERRA-M2-M4-EN04.1...
Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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Contact details: OCHSNER Wärmepumpen GmbH, Ochsner-Straße 1, A-3350 Haag (*) For heat pump space heaters and heat pump combination heaters, the rated heat output Prated is equal to the design load for heatingPde- signh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj).
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