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Worcester Bosch Climate CL3000i 5.3kW Single Split Air Conditioning System – A++ Cooling A+ Heating R32
Worcester Bosch Climate CL3000i 5.3kW Single Split Air Conditioning System – A++ Cooling A+ Heating R32
5.3 kW Cooling5.6 kW HeatingA++ Cooling (SEER 7.0)A+ Heating (SCOP 4.0)R32 RefrigerantSilent Mode 20 dB(A)DC InverterWi-Fi Readyi-Clean Self-Cleaning
The Worcester Bosch Climate CL3000i 5.3 kW single split system (indoor unit CL3000iU W 53 E + outdoor unit CL3000i 53 E) delivers 5.3 kW of cooling and 5.6 kW of heating — making it the right choice for larger living rooms, open-plan kitchen-diners, conservatories and small commercial spaces up to approximately 50 m². With a SEER of 7.0 (A++ cooling) and SCOP of 4.0 (A+ heating), it provides efficient year-round climate control at significantly lower running costs than direct electric heating. The larger indoor unit (971 × 228 × 321 mm) delivers a powerful 800 / 600 / 500 m³/h airflow to cover the room evenly, while Silent Mode keeps noise to just 20 dB(A). The i-Clean self-sanitising evaporator and double filtration system ensure healthy, clean air at all times.
5.3 kW
Cooling
5.6 kW
Heating
SEER 7.0
A++ Cooling
SCOP 4.0
A+ Heating
20 dB
Silent Mode
Key Features & Benefits
DC Inverter Technology — Efficient & Responsive
Variable-speed DC inverter compressor continuously modulates output to match the exact heating or cooling load — eliminating on/off cycling, delivering faster temperature recovery and tighter control, and cutting electricity consumption versus fixed-speed units.
A++ Cooling / A+ Heating ErP Rating
Seasonal efficiency ratings of A++ (cooling) and A+ heating — average climate, rising to A+++ in warmer conditions. These SEER and SCOP values are measured under EN14825 seasonal test conditions, giving a realistic picture of real-world running costs.
Silent Mode — Ultra-Quiet Operation
A dedicated Silent Mode reduces both indoor and outdoor unit noise to their minimum levels. The indoor unit drops to 21 dB(A) — quieter than a whisper — making the system genuinely suitable for bedrooms, nurseries and noise-sensitive environments.
i-Clean Self-Sanitising Evaporator
After each cycle, the i-Clean function heats the indoor evaporator to 56°C, destroying up to 99% of bacteria and mould spores that would otherwise accumulate on the damp heat exchanger. Only clean, healthy air is delivered into the room.
Double Filtration — Odour & VOC Removal
A dual-stage washable filter removes airborne particulates and neutralises odours, harmful gases and volatile organic compounds (VOCs). The reusable filter requires no replacement — simply rinse and refit at each service.
Follow Me — Temperature Sensed at Your Location
The Follow Me feature uses the temperature sensor in the remote controller rather than the indoor unit, so the system responds to the actual temperature where you are in the room — especially useful in large or open-plan spaces.
Heating Down to -15°C Outdoor Temperature
The CL3000i maintains effective heating performance with an outdoor ambient temperature range of -15°C to +24°C, ensuring reliable warmth throughout UK winters without the need for supplementary electric resistance heating.
Wi-Fi Control via Bosch HomeCom Easy App
With the optional Connect Key G10 CL-1 accessory (sold separately), the unit connects to the Bosch HomeCom Easy app for full remote control — scheduling, temperature adjustment, mode changes and energy monitoring from any smartphone or tablet.
Corrosion-Resistant Golden-Fin Outdoor Unit
The outdoor heat exchanger features a golden-fin anti-corrosion coating, providing lasting protection against salt air and atmospheric pollutants — ideal for coastal and urban UK installations.
R32 Low-GWP Refrigerant
Charged with R32 refrigerant (GWP 675) — approximately one third of the environmental impact of R410A — aligning with the UK and EU F-Gas regulation trajectory towards lower-impact refrigerants.
Technical Specifications — CL3000i 5.3 kW
| Cooling Performance | |
| Rated Cooling Capacity (min – nom – max) | 5.3 kW (3.4 – 5.3 – 5.9 kW) |
| Cooling Power Input (nominal) | 1,550 W (420 – 2,050 W) |
| Cooling Current Input (nominal) | 6.7 A (1.8 – 9.0 A) |
| Seasonal Design Cooling Load (Pdesignc) | 5.3 kW |
| SEER | 7.0 |
| Cooling Energy Efficiency Class | A++ |
| Heating Performance | |
| Rated Heating Capacity (min – nom – max) | 5.6 kW (1.5 – 5.6 – 5.8 kW) |
| Heating Power Input (nominal) | 1,750 W (300 – 2,000 W) |
| Heating Current Input (nominal) | 7.6 A (1.3 – 8.7 A) |
| Seasonal Design Heating Load — Average Climate (Pdesignh) | 4.2 kW |
| SCOP — Average Climate | 4.0 (A+ rated) |
| SCOP — Warmer Climate | 5.1 (A+++ rated) |
| Balance Point Temperature (Tbiv) | -7°C (average) / +2°C (warmer) |
| Heating Operating Range (outdoor) | -15°C to +24°C |
| Electrical Supply | |
| Power Supply | 220–240 V, 1-Phase, 50 Hz |
| Indoor Unit — CL3000iU W 53 E | |
| Dimensions (W × D × H) | 971 × 228 × 321 mm |
| Net / Gross Weight | 11.2 kg / 14.6 kg |
| Airflow Volume (Hi / Mi / Lo) | 800 / 600 / 500 m³/h |
| Sound Pressure Level (Hi / Mi / Lo / Silent) | 41 / 37 / 31 / 20 dB(A) |
| Sound Power Level | 56.0 dB(A) |
| Part Number | 7-733-701-568 |
| Outdoor Unit — CL3000i 53 E | |
| Dimensions (W × D × H) | 805 × 330 × 554 mm |
| Net / Gross Weight | 33.5 kg / 36.1 kg |
| Airflow Volume | 2,100 m³/h |
| Sound Pressure Level | 57.0 dB(A) |
| Sound Power Level | 65.0 dB(A) |
| Part Number | 7-733-701-569 |
| Refrigerant Circuit | |
| Refrigerant Type | R32 |
| GWP | 675 |
| Refrigerant Charge | 1.1 kg |
| Design Pressure (high / low) | 4.3 MPa / 1.7 MPa |
| Liquid / Gas Pipe Diameter | 6.35 mm (¼") / 12.7 mm (½") |
| Maximum Pipe Length | 30 m |
| Maximum Height Difference | 20 m |
| Additional Refrigerant Charge (beyond 5 m) | 12 g/m |
| Operating Conditions | |
| Indoor Cooling / Heating Temperature Range | 17–32°C / 0–30°C |
| Outdoor Cooling Temperature Range | -15°C to +50°C |
| Outdoor Heating Temperature Range | -15°C to +24°C |
| Kit Part Number | |
| BOM (complete set) | 7733701737 |
ℹ F-Gas Qualified Installation Required: This system contains fluorinated greenhouse gases (R32) and must be installed, commissioned and serviced by an F-Gas registered engineer. Electrical connection must be carried out by a qualified electrician. Wi-Fi control requires the optional Connect Key G10 CL-1 (sold separately).
Frequently Asked Questions
Related Products
Worcester Bosch CL3000i 3.5 kW
Ideal for rooms up to ~35–40 m²
Worcester Bosch CL3000i 7.0 kW
Ideal for very large rooms / open plan
Bosch Connect Key G10 CL-1
Wi-Fi accessory for HomeCom Easy app
$502.14
Original: $1,434.70
-65%Worcester Bosch Climate CL3000i 5.3kW Single Split Air Conditioning System – A++ Cooling A+ Heating R32—
$1,434.70
$502.14More Images
Worcester Bosch Climate CL3000i 5.3kW Single Split Air Conditioning System – A++ Cooling A+ Heating R32
5.3 kW Cooling5.6 kW HeatingA++ Cooling (SEER 7.0)A+ Heating (SCOP 4.0)R32 RefrigerantSilent Mode 20 dB(A)DC InverterWi-Fi Readyi-Clean Self-Cleaning
The Worcester Bosch Climate CL3000i 5.3 kW single split system (indoor unit CL3000iU W 53 E + outdoor unit CL3000i 53 E) delivers 5.3 kW of cooling and 5.6 kW of heating — making it the right choice for larger living rooms, open-plan kitchen-diners, conservatories and small commercial spaces up to approximately 50 m². With a SEER of 7.0 (A++ cooling) and SCOP of 4.0 (A+ heating), it provides efficient year-round climate control at significantly lower running costs than direct electric heating. The larger indoor unit (971 × 228 × 321 mm) delivers a powerful 800 / 600 / 500 m³/h airflow to cover the room evenly, while Silent Mode keeps noise to just 20 dB(A). The i-Clean self-sanitising evaporator and double filtration system ensure healthy, clean air at all times.
5.3 kW
Cooling
5.6 kW
Heating
SEER 7.0
A++ Cooling
SCOP 4.0
A+ Heating
20 dB
Silent Mode
Key Features & Benefits
DC Inverter Technology — Efficient & Responsive
Variable-speed DC inverter compressor continuously modulates output to match the exact heating or cooling load — eliminating on/off cycling, delivering faster temperature recovery and tighter control, and cutting electricity consumption versus fixed-speed units.
A++ Cooling / A+ Heating ErP Rating
Seasonal efficiency ratings of A++ (cooling) and A+ heating — average climate, rising to A+++ in warmer conditions. These SEER and SCOP values are measured under EN14825 seasonal test conditions, giving a realistic picture of real-world running costs.
Silent Mode — Ultra-Quiet Operation
A dedicated Silent Mode reduces both indoor and outdoor unit noise to their minimum levels. The indoor unit drops to 21 dB(A) — quieter than a whisper — making the system genuinely suitable for bedrooms, nurseries and noise-sensitive environments.
i-Clean Self-Sanitising Evaporator
After each cycle, the i-Clean function heats the indoor evaporator to 56°C, destroying up to 99% of bacteria and mould spores that would otherwise accumulate on the damp heat exchanger. Only clean, healthy air is delivered into the room.
Double Filtration — Odour & VOC Removal
A dual-stage washable filter removes airborne particulates and neutralises odours, harmful gases and volatile organic compounds (VOCs). The reusable filter requires no replacement — simply rinse and refit at each service.
Follow Me — Temperature Sensed at Your Location
The Follow Me feature uses the temperature sensor in the remote controller rather than the indoor unit, so the system responds to the actual temperature where you are in the room — especially useful in large or open-plan spaces.
Heating Down to -15°C Outdoor Temperature
The CL3000i maintains effective heating performance with an outdoor ambient temperature range of -15°C to +24°C, ensuring reliable warmth throughout UK winters without the need for supplementary electric resistance heating.
Wi-Fi Control via Bosch HomeCom Easy App
With the optional Connect Key G10 CL-1 accessory (sold separately), the unit connects to the Bosch HomeCom Easy app for full remote control — scheduling, temperature adjustment, mode changes and energy monitoring from any smartphone or tablet.
Corrosion-Resistant Golden-Fin Outdoor Unit
The outdoor heat exchanger features a golden-fin anti-corrosion coating, providing lasting protection against salt air and atmospheric pollutants — ideal for coastal and urban UK installations.
R32 Low-GWP Refrigerant
Charged with R32 refrigerant (GWP 675) — approximately one third of the environmental impact of R410A — aligning with the UK and EU F-Gas regulation trajectory towards lower-impact refrigerants.
Technical Specifications — CL3000i 5.3 kW
| Cooling Performance | |
| Rated Cooling Capacity (min – nom – max) | 5.3 kW (3.4 – 5.3 – 5.9 kW) |
| Cooling Power Input (nominal) | 1,550 W (420 – 2,050 W) |
| Cooling Current Input (nominal) | 6.7 A (1.8 – 9.0 A) |
| Seasonal Design Cooling Load (Pdesignc) | 5.3 kW |
| SEER | 7.0 |
| Cooling Energy Efficiency Class | A++ |
| Heating Performance | |
| Rated Heating Capacity (min – nom – max) | 5.6 kW (1.5 – 5.6 – 5.8 kW) |
| Heating Power Input (nominal) | 1,750 W (300 – 2,000 W) |
| Heating Current Input (nominal) | 7.6 A (1.3 – 8.7 A) |
| Seasonal Design Heating Load — Average Climate (Pdesignh) | 4.2 kW |
| SCOP — Average Climate | 4.0 (A+ rated) |
| SCOP — Warmer Climate | 5.1 (A+++ rated) |
| Balance Point Temperature (Tbiv) | -7°C (average) / +2°C (warmer) |
| Heating Operating Range (outdoor) | -15°C to +24°C |
| Electrical Supply | |
| Power Supply | 220–240 V, 1-Phase, 50 Hz |
| Indoor Unit — CL3000iU W 53 E | |
| Dimensions (W × D × H) | 971 × 228 × 321 mm |
| Net / Gross Weight | 11.2 kg / 14.6 kg |
| Airflow Volume (Hi / Mi / Lo) | 800 / 600 / 500 m³/h |
| Sound Pressure Level (Hi / Mi / Lo / Silent) | 41 / 37 / 31 / 20 dB(A) |
| Sound Power Level | 56.0 dB(A) |
| Part Number | 7-733-701-568 |
| Outdoor Unit — CL3000i 53 E | |
| Dimensions (W × D × H) | 805 × 330 × 554 mm |
| Net / Gross Weight | 33.5 kg / 36.1 kg |
| Airflow Volume | 2,100 m³/h |
| Sound Pressure Level | 57.0 dB(A) |
| Sound Power Level | 65.0 dB(A) |
| Part Number | 7-733-701-569 |
| Refrigerant Circuit | |
| Refrigerant Type | R32 |
| GWP | 675 |
| Refrigerant Charge | 1.1 kg |
| Design Pressure (high / low) | 4.3 MPa / 1.7 MPa |
| Liquid / Gas Pipe Diameter | 6.35 mm (¼") / 12.7 mm (½") |
| Maximum Pipe Length | 30 m |
| Maximum Height Difference | 20 m |
| Additional Refrigerant Charge (beyond 5 m) | 12 g/m |
| Operating Conditions | |
| Indoor Cooling / Heating Temperature Range | 17–32°C / 0–30°C |
| Outdoor Cooling Temperature Range | -15°C to +50°C |
| Outdoor Heating Temperature Range | -15°C to +24°C |
| Kit Part Number | |
| BOM (complete set) | 7733701737 |
ℹ F-Gas Qualified Installation Required: This system contains fluorinated greenhouse gases (R32) and must be installed, commissioned and serviced by an F-Gas registered engineer. Electrical connection must be carried out by a qualified electrician. Wi-Fi control requires the optional Connect Key G10 CL-1 (sold separately).
Frequently Asked Questions
Related Products
Worcester Bosch CL3000i 3.5 kW
Ideal for rooms up to ~35–40 m²
Worcester Bosch CL3000i 7.0 kW
Ideal for very large rooms / open plan
Bosch Connect Key G10 CL-1
Wi-Fi accessory for HomeCom Easy app
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
5.3 kW Cooling5.6 kW HeatingA++ Cooling (SEER 7.0)A+ Heating (SCOP 4.0)R32 RefrigerantSilent Mode 20 dB(A)DC InverterWi-Fi Readyi-Clean Self-Cleaning
The Worcester Bosch Climate CL3000i 5.3 kW single split system (indoor unit CL3000iU W 53 E + outdoor unit CL3000i 53 E) delivers 5.3 kW of cooling and 5.6 kW of heating — making it the right choice for larger living rooms, open-plan kitchen-diners, conservatories and small commercial spaces up to approximately 50 m². With a SEER of 7.0 (A++ cooling) and SCOP of 4.0 (A+ heating), it provides efficient year-round climate control at significantly lower running costs than direct electric heating. The larger indoor unit (971 × 228 × 321 mm) delivers a powerful 800 / 600 / 500 m³/h airflow to cover the room evenly, while Silent Mode keeps noise to just 20 dB(A). The i-Clean self-sanitising evaporator and double filtration system ensure healthy, clean air at all times.
5.3 kW
Cooling
5.6 kW
Heating
SEER 7.0
A++ Cooling
SCOP 4.0
A+ Heating
20 dB
Silent Mode
Key Features & Benefits
DC Inverter Technology — Efficient & Responsive
Variable-speed DC inverter compressor continuously modulates output to match the exact heating or cooling load — eliminating on/off cycling, delivering faster temperature recovery and tighter control, and cutting electricity consumption versus fixed-speed units.
A++ Cooling / A+ Heating ErP Rating
Seasonal efficiency ratings of A++ (cooling) and A+ heating — average climate, rising to A+++ in warmer conditions. These SEER and SCOP values are measured under EN14825 seasonal test conditions, giving a realistic picture of real-world running costs.
Silent Mode — Ultra-Quiet Operation
A dedicated Silent Mode reduces both indoor and outdoor unit noise to their minimum levels. The indoor unit drops to 21 dB(A) — quieter than a whisper — making the system genuinely suitable for bedrooms, nurseries and noise-sensitive environments.
i-Clean Self-Sanitising Evaporator
After each cycle, the i-Clean function heats the indoor evaporator to 56°C, destroying up to 99% of bacteria and mould spores that would otherwise accumulate on the damp heat exchanger. Only clean, healthy air is delivered into the room.
Double Filtration — Odour & VOC Removal
A dual-stage washable filter removes airborne particulates and neutralises odours, harmful gases and volatile organic compounds (VOCs). The reusable filter requires no replacement — simply rinse and refit at each service.
Follow Me — Temperature Sensed at Your Location
The Follow Me feature uses the temperature sensor in the remote controller rather than the indoor unit, so the system responds to the actual temperature where you are in the room — especially useful in large or open-plan spaces.
Heating Down to -15°C Outdoor Temperature
The CL3000i maintains effective heating performance with an outdoor ambient temperature range of -15°C to +24°C, ensuring reliable warmth throughout UK winters without the need for supplementary electric resistance heating.
Wi-Fi Control via Bosch HomeCom Easy App
With the optional Connect Key G10 CL-1 accessory (sold separately), the unit connects to the Bosch HomeCom Easy app for full remote control — scheduling, temperature adjustment, mode changes and energy monitoring from any smartphone or tablet.
Corrosion-Resistant Golden-Fin Outdoor Unit
The outdoor heat exchanger features a golden-fin anti-corrosion coating, providing lasting protection against salt air and atmospheric pollutants — ideal for coastal and urban UK installations.
R32 Low-GWP Refrigerant
Charged with R32 refrigerant (GWP 675) — approximately one third of the environmental impact of R410A — aligning with the UK and EU F-Gas regulation trajectory towards lower-impact refrigerants.
Technical Specifications — CL3000i 5.3 kW
| Cooling Performance | |
| Rated Cooling Capacity (min – nom – max) | 5.3 kW (3.4 – 5.3 – 5.9 kW) |
| Cooling Power Input (nominal) | 1,550 W (420 – 2,050 W) |
| Cooling Current Input (nominal) | 6.7 A (1.8 – 9.0 A) |
| Seasonal Design Cooling Load (Pdesignc) | 5.3 kW |
| SEER | 7.0 |
| Cooling Energy Efficiency Class | A++ |
| Heating Performance | |
| Rated Heating Capacity (min – nom – max) | 5.6 kW (1.5 – 5.6 – 5.8 kW) |
| Heating Power Input (nominal) | 1,750 W (300 – 2,000 W) |
| Heating Current Input (nominal) | 7.6 A (1.3 – 8.7 A) |
| Seasonal Design Heating Load — Average Climate (Pdesignh) | 4.2 kW |
| SCOP — Average Climate | 4.0 (A+ rated) |
| SCOP — Warmer Climate | 5.1 (A+++ rated) |
| Balance Point Temperature (Tbiv) | -7°C (average) / +2°C (warmer) |
| Heating Operating Range (outdoor) | -15°C to +24°C |
| Electrical Supply | |
| Power Supply | 220–240 V, 1-Phase, 50 Hz |
| Indoor Unit — CL3000iU W 53 E | |
| Dimensions (W × D × H) | 971 × 228 × 321 mm |
| Net / Gross Weight | 11.2 kg / 14.6 kg |
| Airflow Volume (Hi / Mi / Lo) | 800 / 600 / 500 m³/h |
| Sound Pressure Level (Hi / Mi / Lo / Silent) | 41 / 37 / 31 / 20 dB(A) |
| Sound Power Level | 56.0 dB(A) |
| Part Number | 7-733-701-568 |
| Outdoor Unit — CL3000i 53 E | |
| Dimensions (W × D × H) | 805 × 330 × 554 mm |
| Net / Gross Weight | 33.5 kg / 36.1 kg |
| Airflow Volume | 2,100 m³/h |
| Sound Pressure Level | 57.0 dB(A) |
| Sound Power Level | 65.0 dB(A) |
| Part Number | 7-733-701-569 |
| Refrigerant Circuit | |
| Refrigerant Type | R32 |
| GWP | 675 |
| Refrigerant Charge | 1.1 kg |
| Design Pressure (high / low) | 4.3 MPa / 1.7 MPa |
| Liquid / Gas Pipe Diameter | 6.35 mm (¼") / 12.7 mm (½") |
| Maximum Pipe Length | 30 m |
| Maximum Height Difference | 20 m |
| Additional Refrigerant Charge (beyond 5 m) | 12 g/m |
| Operating Conditions | |
| Indoor Cooling / Heating Temperature Range | 17–32°C / 0–30°C |
| Outdoor Cooling Temperature Range | -15°C to +50°C |
| Outdoor Heating Temperature Range | -15°C to +24°C |
| Kit Part Number | |
| BOM (complete set) | 7733701737 |
ℹ F-Gas Qualified Installation Required: This system contains fluorinated greenhouse gases (R32) and must be installed, commissioned and serviced by an F-Gas registered engineer. Electrical connection must be carried out by a qualified electrician. Wi-Fi control requires the optional Connect Key G10 CL-1 (sold separately).
Frequently Asked Questions
Related Products
Worcester Bosch CL3000i 3.5 kW
Ideal for rooms up to ~35–40 m²
Worcester Bosch CL3000i 7.0 kW
Ideal for very large rooms / open plan
Bosch Connect Key G10 CL-1
Wi-Fi accessory for HomeCom Easy app
