Karnot iHEAT R290 30kW

Commercial Monobloc Air Source Heat Pump — 380–420V 3-Phase

A+++COP up to 4.8575°C Output−25°C OperationR290 · GWP 3380–420V 3-PhaseCommercial Grade

30kW Commercial Monobloc Air Source Heat Pump

Natural Refrigerant R290 · A+++ Rated · 3-Phase

The iHEAT 30kW delivers 20% more capacity than the 25kW in the same compact 1249×509×1558mm cabinet. Powered by a HITACHI DC inverter scroll compressor, it suits medium commercial buildings, larger HMOs, and multi-unit developments needing reliable year-round heating, hot water, and cooling with a minimal plant room footprint.

A+++ Energy RatingCE CertifiedSG Ready
Karnot iHEAT R290 30kW

Integrated iSAVE™ AI Platform

Blockchain-Verified Carbon Monitoring & Grid Optimisation

Carbon Credit Monetisation

Blockchain-verified emissions data enables automatic generation and sale of carbon credits, creating recurring revenue from commercial heat pump operations.

Virtual Power Plant Ready

Participate in demand response programmes, earning incentives by shifting commercial thermal loads during peak pricing periods.

Real-Time Performance Optimisation

Cloud-based models continuously tune system parameters, maximising COP and reducing operational costs by 15–25%.

Predictive Maintenance Analytics

Machine learning detects anomalies and predicts failures weeks in advance, reducing downtime and maintenance costs by up to 40%.

Solar PV Self-Consumption

Intelligent thermal storage optimisation maximises on-site solar use, reducing grid dependency and accelerating commercial ROI.

Tamper-Proof Data Integrity

Integrated UPS and cryptographic verification ensure auditable emissions tracking for ESG reporting and carbon credit certification.

Commercial Revenue Enhancement: iSAVE transforms heat pumps into revenue-generating assets through carbon credits, demand response payments, and reduced energy procurement. Typical installations see 8–15% additional annual returns beyond energy savings alone.

Key Features at a Glance

Wide Operating Range

Reliable performance from −25°C to 45°C ambient — full UK year-round commercial operation with no auxiliary heating required.

75°C Hot Water

High-temperature output meets commercial sanitation and L8 Legionella control requirements without auxiliary electric heating.

CHICO Touchscreen

Intuitive 4.3” CHICO touchscreen controller for on-site management by facilities teams and service engineers.

HITACHI DC Inverter Scroll

High-efficiency inverter technology delivers precise temperature control, wide part-load range, and commercial-grade reliability.

64 dBA Sound Level

Design for commercial plant rooms with appropriate acoustic separation from occupied areas per planning conditions.

Future-Proof R290

R290 (GWP 3) is PFAS-free and meets EU F-gas GWP 150 limits from 2027 — no refrigerant retrofit required.

Commercial & Industrial Applications

The iHEAT 30kW delivers commercial-grade heating, cooling, and hot water from a single outdoor unit — replacing gas boilers with zero-combustion clean energy.

Commercial Buildings

Offices, hotels, schools, and healthcare facilities benefit from the 30kW’s high capacity, 75°C output, and A+++ efficiency.

Hydronic Efficiency

Water is 3,500× more efficient than air for thermal transfer — enabling zoned distribution and lower carbon footprint at commercial scale.

ESG & Sustainability

R290 + iSAVE blockchain monitoring provides auditable carbon data for ESG reporting, BREEAM assessments, and EPC improvements.

Commercial Benefits & ROI

The 30kW delivers compelling commercial economics — replacing gas boilers while improving energy performance, reducing carbon, and generating new revenue streams.

50–70% Energy Cost Reduction

Replacing gas heating with the 30kW typically reduces heating energy costs by 50–70% at current gas/electricity price ratios.

Cascade & Modular

Multiple units cascade for larger loads with lead-lag sequencing for efficiency and built-in redundancy.

Full Cooling Capability

23.9kW cooling via iZONE fan coils provides summer comfort — complete all-season climate from one outdoor unit.

Legionella-Safe Hot Water

75°C output meets BS EN 806 and L8 requirements for commercial hot water — no supplementary electric heating needed.

iSAVE Carbon Income

Blockchain-verified carbon credits generate ongoing revenue independent of government grant schemes, improving project IRR.

Low Maintenance

Inverter technology and predictive analytics reduce service intervals and emergency call-out costs vs traditional boiler plant.

Funding & Incentives

MCS-Certifiable

iHEAT range is MCS-certifiable for eligible non-domestic applications. Contact Karnot for project qualification.

iSAVE Carbon Revenue

Blockchain-verified carbon credits generate ongoing income independent of government scheme timelines.

Commercial enquiries: Contact Karnot for project-specific assessment, heat loss calculations, and system design support.

Performance

Max Heating Output (A7/W35)30.0 kW
Heating COP Range (A7/W35)3.85 – 4.85
Max Cooling Output (A35/W18)23.9 kW
Cooling EER Range (A35/W18)3.28 – 3.72
Ambient Operating Range−25 °C to 45 °C

Technical Specifications

Order ReferenceCGK-100V4-B
Power Supply380–420V / 3Ph / 50Hz
Max Operating Current20.50 A
Recommended Breaker32 A
CompressorHITACHI DC Inverter Scroll
Control SystemCHICO 4.3” Touchscreen
Refrigerant / ChargeR290 / 2.1 kg (GWP 3)
Sound Pressure Level64 dBA @ 1m
Water ConnectionG1½" BSP
Fan ConfigurationDual DC fans · 11,000 m³/hr each

Dimensions & Weight

Unit Dimensions (L×D×H)1249 × 509 × 1558 mm
Net Weight231 kg

Premium Components

FUJIKOKI® Electronic Expansion Valve

Precise refrigerant flow control across all operating conditions enhances COP at part-load and maximises performance during seasonal extremes.

Plate Heat Exchanger

High-efficiency brazed plate heat exchanger ensures optimal thermal transfer between refrigerant and water circuits — compact, durable, and resistant to fouling.

DC Variable-Speed Fan

Variable-speed DC fan adjusts to match the thermal load — reducing power consumption and noise during part-load operation while extending component life.

SENSATA Pressure Sensors

High and low pressure monitoring (0–4.6 MPa and 0–2.0 MPa) provides continuous refrigerant circuit protection and predictive fault detection.

Control & Integration

CHICO 4.3” Touchscreen Controller

Colour touchscreen provides on-site management with real-time status, operating history, and alarm logs for facilities managers and service engineers.

Key Functions:

  • Heating, cooling, and DHW management with independent set-points.
  • Weather compensation and climate curve management.
  • Anti-Legionella, Defrost, and Antifreeze automated safety cycles.
  • Multi-zone circulation pump control.
  • Alarm logging with integrated fault diagnostics.
  • SG Ready input for smart grid demand response optimisation.
Disclaimer: Specifications are subject to change without notice. Confirm all details before placing an order. Commercial installations should be designed and commissioned by a qualified heat pump engineer. Contact Karnot for project-specific guidance.

Frequently Asked Questions

What applications is the Karnot iHEAT 30kW designed for?

The 30kW is ideal for medium commercial buildings, multi-unit residential developments, hotels, schools, and care homes. Its 75°C output supports both domestic hot water and space heating via existing radiator systems, and it can be cascaded with other iHEAT units for larger loads.

What compressor does the CGK-100V4-B use?

The CGK-100V4-B uses a HITACHI DC Inverter Scroll compressor. This delivers higher part-load efficiency than fixed-speed alternatives, quieter operation at 64 dBA, and reliable 24/7 commercial-duty performance.

Does the iHEAT 30kW use R290 refrigerant?

Yes. The CGK-100V4-B runs on R290 (propane) with a 2.1kg charge. R290 has a GWP of 3 — 675x lower than R410A — is PFAS-free, and fully compliant with current and forthcoming F-gas regulations.