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ETERA HT/H Passive Cooling • Geothermal heat pumps
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- Geothermal heat pump
- KRONOTERM
- Geothermal heat pump with passive cooling
- C 2 - 9 kW / H 2 - 9 kW
- R452B
Accessories
HYDRO B • Water heaters for installation in conjunction with the geothermal heat pump ETERA HYDRO BA • Free standing water heaters for geothermal heat pump ETERA KT-2A • Regulations/Thermostats KT-1 • Thermostats KSM+ 2 • Expansion modules for KSM control card ZA-P 40 ETERA • Buffer tanks 40 L with insulation for ETERA SET_ETERA BO-BI • Sets of connecting pipes for the heat source for ETERA heat pump SET_ETERA FH-R(-FS) • Sets of connection pipes for heating system and hot water preparation ETERA heat pump SET_HYDRO B HW-CW • Sets of connecting pipes for hot and cold sanitary water for HYDRO B(A) SET_HYDRO B RC • Sets for circulation over a return pipe of DHW for HYDRO B(A) CS_DN25 D PWM2 • Heating loop pump sets, direct circuit CS_DN25 M PWM2 • Heating loop pump sets, mixed circuit HR_DN25-2/3/4/VI • Insulated collector for flow and return pipes with 2,3 or 4 circuits in line
The ETERA heat pump from KRONOTERM is designed for energy-efficient and environmentally friendly heating of homes or buildings. This geothermal heat pump uses the constant temperature of the earth to efficiently generate heat for both space heating and the production of domestic hot water. Thanks to the use of geothermal energy, the ETERA heat pump provides significant energy savings and reduces CO₂ emissions. Kronoterm is also known for developing quiet heat pumps, which contributes to a comfortable indoor climate without noise pollution. The ETERA in HT/H Passive Cooling version can only heat and has a built-in passive cooling module. The ETERA PC only exists in the "Small" version of 2-9 kW.
Brand
- KRONOTERM
Application
- Heating: During cold months, the ETERA heat pump provides efficient heating for your home or building.
- Passive cooling: In the summer months, the built-in plate exchanger for passive cooling allows rooms to be cooled without compressor operation. This maintains a comfortable indoor climate.
- Hot water production: The ETERA provides a constant supply of hot water for domestic use throughout the year.
Characteristics
- Long lifespan: Designed for a lifespan of up to 30 years, reducing the frequency of system replacement and contributing to sustainability.
- Modular design: Thanks to the modular system design and standardised connections, installation and maintenance are simple and quick, and components can be easily upgraded or modernised.
- Design and attention to detail: The ETERA looks just as sleek and stylish in real life as it does in the brochure, thanks to its smart design and neat finish.
- Compact and quiet: The ETERA takes up less than 0.5 m² of floor space and operates with a sound pressure level of only 27 dB at 1 m, making the system barely audible.
- High efficiency: The ETERA has a seasonal efficiency (SCOP) of 8.17 when using groundwater as the heat source, which means that for every kWh of electricity consumed, 8.17 kWh of useful heat is delivered.
- Heat sources: Compatible with brine/water systems with both vertical and horizontal ground collectors.
- Smart control: Equipped with the CLOUD.KRONOTERM system, allowing users, free online, to remotely control the heat pump via a mobile or web application, including setting heating and cooling schedules and monitoring energy consumption.
- Well-regulated: At least one KT-2A controller is always required per ETERA installation. The KT-2A can function as a controller, thermostat or as a combination of controller/thermostat
Composition
Casing made of white powder-coated, galvanized steel sheets:
- Modular design and removable heat pump module
- Variable heating capacity
- Adaptive heating control
- Special anti-noise design (acoustically insulated casing, damping and vibration management)
- DC inverter compressor
- Evaporator
- Condenser
- Electronic expansion valve
- Inverter drive of the same brand as the compressor
- R-452B as refrigerant (GWP 676)
- Drain valve
- Filter dryer
- Flow switch at the source
- Pressure switch
- High pressure sensor
- Low pressure sensor
- Temperature sensors
- Inductors
Electrical board with built-in KSM control card (KRONOTERM System Manager):
Hydraulic circuit:
Preparations for installation:
Description KSM:
- Basic heat pump and heating system controller
- Operation via the KT-2A controller or the CLOUD.KRONOTERM mobile/web application
- WEB module (for remote control via the CLOUD.KRONOTERM web application)
- Space for an additional KSM+2 expansion module
- Protective tubes for cables to the electrical cabinet
- Internet connection
- Heat pump control
- Control of additional heat generators (gas, oil or pellet boiler)
- Control of submersible pumps
- Circulation control
- Heating of sanitary hot water
- Thermal disinfection of sanitary hot water (anti-legionella)
- Adaptive weather control of individual loops based on outside and room temperature
(requirement: KT-1 or KT-2A accessory) - Active cooling
- Groundwater flow measurement
- Use of excess energy from the PV module (PV program)
- Program for drying screed/floor screed
- Control functions for:
- 1x direct loop (radiators/convectors/floor heating)
- 1x direct or mixing loop (radiators/convectors/floor heating)
- Room temperature control with KT-1 and KT-2A; daily and weekly schedules
- WEB module for internet connection (RJ45 connection – Ethernet)
- BMS connection via MODBUS RS485 protocol
- Smart-grid ready (SG ready)
- 3-way zone valve
- Built-in 18 L expansion vessel in the heating circuit
- Built-in 18 L expansion vessel in the source circuit
- Circulation pump for heating
- Circulation pump for source
- Safety valve for heating
- Safety valve for source
- Flow sensor (Flow switch)
- Pressure sensor in the heating circuit
- Pressure sensor in the source circuit (checking filling/venting bottom collector)
- Magnetic dirt separator + built-in mechanical dirt filter
- Electric heating up to 2 kW (1 x 2 kW)
- Template for wall fixing to ensure easy pre-installation and placement without visible hydraulic pipes
- Supplied wall bracket for pre-installation of pipes
Options
- KT-2A Wall-mounted room thermostat with very comprehensive graphic display and controller (KSM) - MANDATORY OPTION
- KT-1 Wall-mounted room thermostat with simple temperature setting for KSM
- ND_KT-1 Wall-mounted connection box for KT-1 thermostat (surface-mounted instead of flush-mounted)
- HYDRO B/1F1 200 L hot water boiler module for right-hand mounting on ETERA, without side panels. ETERA and HYDRO B form 1 unit after installation.
- HYDRO BA/1F1 200 L hot water boiler module for stand-alone installation and hydraulic/electrical connection to ETERA, same appearance as ETERA.
- KIT_P2P KT-1/KT-2A Kit for upgrading a 2-wire cable for connecting KT-1/2A and KSM
Versions
- ETERA S-1 HT/H UF E PC
Order example
- ETERA S-1 HT/H UF E PC
Explanation
ETERA = Name of the heat pump series (ETERNAL + TERA eternal heat from the earth)
S = Heating capacity range: 2–9 kW
M = Heating capacity range: 4–12 kW
L = Heating capacity range: 6–18 kW
1 = Generation of the device
HT = High Temperature (water temperatures up to 67 °C)
H = Heizung = Only heating and Passive cooling
UF = 1-phase connection 1 x 230 V
3F = 3-phase connection 3 x 400 V + N
E = Additional electrical heating
PC = Passive cooling built into the ETERA heat pump and no active cooling in that case
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