TERRA 27 HPLA

Product catalog summary

Overview: The document provides technical specifications and guidelines for the Ochsner TERRA 27 HPLA brine/water heat pump, designed for monovalent heating systems. It includes details on appliance data, heat source and sink systems, electrical data, refrigerant circuit, performance figures, energy efficiency, recommended accessories, and extraction capacity guidelines.

Appliance Data: The heat pump is suitable for buildings with a heat load of 18-27 kW and can achieve a maximum flow temperature of 65°C. The indoor unit dimensions are 1,289x600x680 mm, with a weight of 250 kg. It operates at a sound power level of 52 dB(A) and a sound pressure level of 44 dB(A).

Heat Source System: Utilizes a plate heat exchanger made of stainless steel with a flow rate of 6.3 m³/h and a residual head of 307 mbar. The system operates with a brine heat transfer medium, with a maximum operating pressure of 3 bar and temperature limits between -6°C and 20°C.

Heat Sink System: Features a plate heat exchanger with a flow rate of 4.4 m³/h and a residual head of 134 mbar. The heat transfer medium is water, with a maximum operating pressure of 3 bar and temperature limits between 20°C and 65°C.

Electrical Data: The main power circuit operates at a rated voltage of 380-400 V with a rated current of 25 A. The control circuit operates at 220-240 V with a rated current of 6.3 A.

Refrigerant Circuit: Uses R410A refrigerant with a charge of 4.5 kg and a maximum operating pressure of 45 bar. The compressor type is scroll.

Performance Figures: At B0/W35, the heating output is 24.45 kW with a COP of 4.40. At B0/W55, the heating output is 22.59 kW with a COP of 2.84.

Energy Efficiency: The heat pump achieves an energy efficiency class of A+++ at 35°C and A++ at 55°C, with SCOP values of 4.72 and 3.53, respectively.

Recommended Accessories: Includes a heat pump buffer tank, DHW tank, external plate heat exchanger, 3-way switching module, and passive cooling set.

Extraction Capacity Guidelines: Provides guide values for extraction capacity based on soil conditions and installation methods, such as shallow laying, deep trench laying, and deep drilling.

Recommended Max. Pressure Losses: Connection lines should not exceed 100 mbar, and brine circuits or probes should not exceed 300 mbar.

Catalog excerpts

TERRA 27 HPLA • BRINE/WATER HEAT PUMP (MONOVALENT HEATING SYSTEM) • M2/M4 INDOOR UNIT • HEATING • OTE CONTROLLER APPLIANCE DATA_ Order no. Suitable building heat load kW Indoor unit Dimensions (HxWxD) mm Hydraulic assembly connection (dimension) inch Hydraulic assembly connection (connection type)_ Weight (excl. packaging) kg Standard colour Sound power level (EN 12102) dB(A) Sound pressure level (at 1 m) dB(A) HEAT SOURCE SYSTEM Evaporator type (WQA) Evaporator material (WQA) Temperature differential (WQA) Flow rate (WQA) Residual head (WQA) Flow meter Heat transfer medium Circulation pump (WQA) Max. heat transfer medium op. pressure Limits of use, heating min. Limits of use, heating max. HEAT SINK SYSTEM Condenser type (WNA) Condenser material (WNA) Temperature differential (WNA) Flow rate (WNA) Residual head (WNA) Flow meter Circulation pump Heat transfer medium Max. heat transfer medium op. pressure Min. limits of use, heating / max. REFRIGERANT CIRCUIT Refrigerant R410A Refrigerant charge (ex works) kg 4.5 Max. refrigerant operating pressure bar 45 Compressor type Scroll PERFORMANCE FIGURES_ ENERGY EFFICIENCY (AVERAGE CLIMATE ZONE) at max. flow temperature (heating) Energy efficiency class (D to A+++) P rated Efficiency ETAs SCOP at min. flow temperature (cooling) SEER Male thread 250 White/anthracite 52 44 Plate heat exchanger Stainless steel 1.4401 K 3 internal Brine max. 30% internal bar 3 Plate heat exchanger Stainless steel 1.4401 K 5 internal internal Water bar 3 ELECTRICAL DATA Frequency Power factor Voltage fluctuations/flicker Harmonics Max. network impedance (Zmax) Main power circuit Rated voltage range Rated current Max. starting current Fuse protection Control circuit Rated voltage range Rated current Fuse protection A Notes: • Additional technical information and documents are available from the Download area at www.ochsner.com § • The applicable regional and national laws, standards and regulations must be observed.

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GUIDE VALUE FOR EXTRACTION CAPACITY WITH SHALLOW LAYING (VDI 4640) Soil conditions Max. spec. extraction ca- Max. spec. extraction ca pacity at 1800 h/a [W/m2] pacity at 2400 h/a [W/m2] Dry, non-cohesive soil 10 8 Cohesive soil, moist 25 20 Water-saturated soil, sand/ 40 32 GUIDE VALUE FOR EXTRACTION CAPACITY WITH DEEP TRENCH LAYING (VDI 4640) Soil conditions Max. spec. extraction capacity at 1800 h/a [W/m] deep trench Cohesive soil, moist 100 Water-saturated soil, sand/gravel 125 GUIDE VALUE FOR EXTRACTION CAPACITY WITH DEEP DRILLING (VDI 4640) Soil conditions Max. spec. extraction ca- Max....

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TERRA 27 HPLA

TERRA 27 HPLA

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