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KAISAI KHY R290 Monoblock Heat Pump | ErP A+++ | −25 °C | Up to 70 °C
ErP A+++ (35 °C) R290 (propane) Up to 70 °C water −25 °C operation

KAISAI KHY R290 – Monoblock Air-to-Water Heat Pumps

The KHY series combines R290 (propane) with inverter technology and a modern 5" touchscreen for efficient, quiet heating and cooling. Reliable operation down to -25°C and up to 70°C of outgoing water — ideal for both renovations and new construction.

70 °C
Max. outgoing water
−25 °C
Winter operation
A+++ / A++
ErP 35 °C / 55 °C
5″ + WiFi
Touchscreen & app
KAISAI KHY R290 monoblock heat pump
Official brochure: download here (PDF) .

Key Benefits

High efficiency

Seasonal efficiency up to ErP A+++ (35 °C) / A++ (55 °C) thanks to R290 and inverter.

Silent operation

Optimized housing, sound insulation and DC fan for low noise levels.

High water temperatures

Up to 70°C outgoing water — suitable for renovations with radiators.

All-climate performance

Reliable operation down to −25 °C with intelligent defrost control.

Smart control

5″ touchscreen , WiFi control, schedules & Smart Grid logic.

Service & installation

Monoblock construction, maintenance-friendly components, clear menus.

Technology & sustainability

R290 (GWP≈3) in combination with DC inverter and electronic expansion valve delivers high COPs, stable power and lower CO₂ impact.

  • Inverter compressor – demand-driven speed for top efficiency and comfort.
  • Plate heat exchanger (SWEP) – high transfer and reliability.
  • Full sound insulation – damping and vibration absorption around compressor.
  • Weatherproof housing – corrosion resistant with a modern design.

Models & official specifications

Available models: KHY-12PY3 (±12 kW) and KHY-15PY3 (±15 kW).
Power supply: 380–415 V • 3N • 50 Hz (3-phase).

Heating – A7/W35 (nominal, with range)

Model Heating capacity Electricity consumption COP
KHY-12PY3 11.60 kW (5.20–13.40) 3.80 kW (1.20–3.80) 3.11 (2.90–4.30)
KHY-15PY3 15.45 kW (6.30–18.60) 5.20 kW (1.59–5.40) 2.98 (2.60–4.00)

Heating – low outside temperature

Condition KHY-12PY3 KHY-15PY3
A-10/W35 (rated cap./consumption/COP) 9.06 kW / 3.28 kW / 2.77 11.30 kW / 6.00 kW / 2.07
A-10/W55 (nom. cap./consumption/COP) 8.49 kW / 4.44 kW / 1.91 12.22 kW / 7.47 kW / 1.64

Other (sound, water, dimensions)

Parameter KHY-12PY3 KHY-15PY3
ErP (moderate) A+++ (35°C) • A++ (55°C) A++ (35 °C) • A++ (55 °C)
Water (outgoing) 9…70 °C 9…70 °C
Company outside temp. −25…43 °C (heat) • −5…43 °C (cool) −25…43 °C (heat) • −5…43 °C (cool)
Sound power / pressure (1 m) 63 dB(A) • ~51.5 dB(A) 62 dB(A) • ~50 dB(A)
Water flow / pump boost 1.7 m³/h • 5.5 m H₂O 2.9 m³/h • 6.9 m H₂O
Refrigerant (R290) ~0.85 kg ~1.30 kg
Dimensions (w×h×d) 1287×928×458 mm 1250×1330×540 mm
Weight (net) 160 kg 202 kg

* Values ​​per official datasheet; performance depends on system setup and conditions.

Download official brochure (PDF)

Application

  • Renovation – high water temperatures up to 70 °C for existing radiators.
  • New construction – low-temperature emission systems (underfloor heating/FCUs).
  • Hot water – combine with a suitable boiler tank or integrated solution.
  • All-electric or hybrid – as main heating or in addition to existing boiler.

Installation & service

Easy to use

Wizard on 5″ touchscreen and clear hydraulic diagrams.

Sound & placement

Pay attention to free airflow, reflections and surface for optimal sound experience.

Maintenance

Access via service hatches; annual inspection/updates recommended.

Frequently Asked Questions

Is R290 safe?
Yes. R290 is a natural refrigerant (GWP≈3) with a low impact. Installation must be performed exclusively by certified specialists.
Can this heat pump power radiators?
Yes. Up to 70°C outgoing water, suitable for renovations with radiators.
Does the KHY work in frost?
Yes. Designed for reliable operation down to −25°C outside temperature.
Does the KHY have app or touchscreen control?
Yes. 5″ touchscreen, Wi-Fi control, and Smart Grid logic.

No specifications available for this product.