5-year compressor warranty on every unitTrade supply07519 444554
Williams Infini 12,000 BTU
Williams Infini

Williams Infini 12,000 BTU

Model WSSI-12NR3 / WSOI-12NRX
A+++A+++A+++Fire resistantLow noise

A compact A+++ unit built around quiet running and air quality: high-density and catalytic filtration, dedusting technology and a fire-resistant casing.

Price on request
Message or call us with your room size and we'll come back the same day with a price and availability.
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Made to order — ask us for the current lead time
Trade supply only.
5-year compressor warranty · 3 years on the indoor unit
Supplied ready for your F-Gas registered installer
Full documentation pack, energy label and manuals included
3.52 kW
Cooling capacity
3.81 kW
Heating capacity
220–350 ft² (22–35 m²)
Room size
39 dB(A)
Quietest setting
8.5
Seasonal efficiency (SEER)
4.6
Seasonal efficiency (SCOP)

A compact A+++ unit built around quiet running and air quality: high-density and catalytic filtration, dedusting technology and a fire-resistant casing.

  • A+++ in cooling and in heating, SEER 8.5
  • Gear Shift with fast cooling and fast heating
  • 8 °C heating for empty properties
  • Catalytic and high-density filters
  • Dedusting technology
  • Fire-resistant construction
  • Intelligent airflow and Sleep mode
  • Low noise levels — 21 dB(A) minimum

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