Caloris Mk3
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Informations produit
Caloris Mk3 is a comfort air conditioning unit that can be used for both cooling and heating, using minimal quantities of the natural refrigerant R290 — providing sustainable comfort.
Caloris Mk3 is a decentralised water-to-air comfort air conditioning unit for efficient and sustainable heating and cooling in commercial buildings. Minimised use of the natural refrigerant R290 and a neutral water loop guarantee maximum comfort, high energy efficiency and low installation costs. Backwards compatibility with previous Caloris models (Mk1 and Mk2) ensures easy retrofitting with minimal downtime and faster amortisation.
Points forts du produit
- Natural refrigerant: Caloris units use just 250 g / 370 g of eco-friendly R290 refrigerant with an ultra-low GWP of 0.02
- Neutral water loop: 2-pipe system without the need for insulation (20°C–25°C) enables simultaneous heating and cooling, with efficient energy recovery via inter-room energy exchange
- No certified installer required: Factory-sealed and pre-filled refrigerant circuit reduces installation time and cost
- Decentralized comfort control: Each unit operates independently with variable supply air temperature for room-by-room climate customization
- VDI 6022 certified: Fully compliant with VDI 6022 standards, ensuring top-tier hygiene in air-handling systems
- Quiet, compact design: Low-profile 247 mm ceiling units are acoustically optimized for discreet integration in diverse applications
- Retrofit-ready: Direct 1:1 replacement for previous Caloris Mk2 indoor units — existing pipework can be reused for minimal disruption
Informations techniques
Informations techniques
System Components Indoor Units : Decentralised water-to-air comfort air conditioning unit for ceiling installation
Outdoor Unit : Central heat pump (only active during peak load)
Neutral Water Loop : 2-pipe PE system connecting all units
Refrigerant and Safety Type : R290 (Propane) – Natural refrigerant
GWP (global warming potential): 0.02
Safety classification : A3 (safely handled within permanently technically sealed units)
Installation safety: No gas detection systems or alarms required in accordance with DIN EN 378-3 if minimum room volumes are maintained: Size 2 (filling charge: 250 g): Min. room size = 31.3 m³
Size 4 (filling charge: 370 g): Min. room size = 46.3 m³
Installation Installation type: Suspended in suspended ceiling and decoupled from the building by means of special anti-vibration mounts
Retrofit-friendly: Compatible with previous Caloris Mk1 / Mk2 pipework for 1:1 replacement
Factory-sealed circuit: No handling of refrigerants on site, no special installer certification required in accordance with European Implementing Regulation (EU) 2024/2215
FGAS / EU Regulation 2024/573: No installation certificate required for building-side work
Neutral water loop Energy source for heating and cooling thanks to neutral water temperature in the ideal range of 20°C to 25°C, with peak loads between 15°C and 35°C.
Simultaneous heating and cooling in different parts of the building
Energy recovery : thermal energy from rooms that require cooling can be redistributed to rooms that require heating and vice versa.
Medium-term storage of thermal energy for increased system efficiency.
Dimensions and weight Size 2 Dimensions: 247 mm x 1142 mm x 986 mm (H x L x W)
Weight: 60 kg
Size 4 Dimensions: 247 mm x 1142 mm x 1638 mm (H x L x W)
Weight: 75 kg
Performance data Size 2 Nominal output (cooling | heating): 2.0 kW | 1.7 kW
Coefficients of performance up to 7.0 - Seasonal coefficient of performance (cooling | heating): 4.6 | 3.9
Size 4 Nominal output (cooling | heating): 4.2 kW | 3.3 kW
Coefficients of performance up to 8.4 - Seasonal coefficient of performance (cooling | heating): 5.3 | 5.8
Performance measurements are carried out in accordance with DIN EN 14511-3:2023 and DIN EN 14825:2023 in the accredited TÜV NORD test laboratory
Sound Performance Size 2 Sound power (cooling | heating): 58,5 dB(A) | 57,0 dB(A)
Typical sound pressure level (cooling | heating): 35,1 dB(A) | 34,8 dB(A)
Size 4 Sound power (cooling | heating): 64,0 dB(A) | 62,5 dB(A)
Typical sound pressure level: 36,9 dB(A) | 36,4 dB(A)
Acoustic measurements were carried out according to EN ISO 3741:2010 and EN ISO 5135:2020 in the accredited test laboratory Peutz BV
Electrical Requirements Supply Voltage : 230 V / 1 Ph / 50 Hz
R ated power consumption & rated current: Size 2: 0.61 kW | 2.8 A
Size 4: 1.53 kW | 6.9 A
Control & Integration Decentralised control: Each unit can be set individually (heating/cooling, fan speed, temperature)
BMS compatibility: Optional integration via Caloris Control Suite desktop application for management, control & diagnostics
Operation via modern touch displays or analogue 3-button operating elements in an elegant design as wall installation in the room or via web visualisation (via BMS)
Extended functionality provided by VPN router, PIR sensor, weekly programme, energy-saving functions, etc.
Certifications Certified in accordance with VDI 6022 by the Hygiene-Institut des Ruhrgebiets - required for public buildings in Germany
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