Hawco Ltd Refrigeration

HVAC Components for Air Source Heat Pump Manufacturers

We work with air source heat pump manufacturers, assisting them with their system design to help deliver greater product efficiency.

In addition to compressors with inverter control and heat exchangers optimised for heat pump applications, we can recommend compatible valves, line components and safety cutouts to complete your design.

Compressors and Inverter Drives

Heat pump performance is driven by the compressor chosen for your application. We recommend inverter-driven compressors from SCI, an innovative Thai producer that manufactures 4 million refrigeration compressors a year. Compressors can be matched with a selection of three different inverter control options, giving greater design flexibility. 

Additional compressors available on request.
Hawco Scroll Compressors

R290 Scroll Compressors

Inverter-driven vertical scroll compressors from SCI with a nominal capacity of 1.5kW to 17.5kW
  • A+++ efficiency with patented FCT technology to cut energy use 
  • ATEX terminal separated from compressor terminal
OPEN SCI APB DATASHEET
Hawco Scroll Compressors

R454B Scroll Compressors

Two inverter driven models with a nominal capacity of 24.4kW and 34kW

OPEN HITACHI YC221122 DATASHEET
OPEN HITACHI YC222202 DATASHEET
Hawco Rotary Compressors

R290 Rotary Compressors

Inverter-driven rotary compressors from SCI with capacity up to 11.1kW 
  • Available with a dedicated SCI inverter drive or Coolvert controller from Invertek Drives 
OPEN SCI SPB AND TPB DATASHEET
Hawco Inverter Drives

Inverter Drives

Choice of additional inverter controllers from Invertek Drives and Sanhua

OPEN OPTIDRIVE COOLVERT DATASHEET
OPEN SANHUA SD DATASHEET
OPEN SCI INVERTER DRIVE DATASHEET

Heat Exchangers

Sanhua is our recommended choice for R290 heat pump heat exchangers. With their horizontal flow, Sanhua's micro-channel heat exchangers provide excellent heat transfer compared to traditional fin and tube coils. A wide range of brazed plate heat exchangers benefit from a patented asymmetric plate design to give a 25% lower pressure drop on the secondary side. 
Hawco Heat Exchangers

Sanhua Micro-Channel Heat Exchangers

MCHE heat pump coil from Sanhua with a small, lightweight and compact design 
  • High system efficiency
  • 30% reduced refrigerant charge 
OPEN SANHUA MCHE BROCHURE 
Hawco Brazed Plate Heat Exchangers

Sanhua Brazed Plate Heat Exchangers

BPHE from Sanhua suitable for heat pumps with a capacity range between 5kW and 90kW
  • Optimised for efficient heat transfer with a small footprint
  • Lower water side pressure drop 
OPEN SANHUA S40A, S60 and S60B DATA SUMMARY
Hawco Zilmet Brazed Plate Heat Exchangers

Zilmet Brazed Plate Heat Exchangers

Stainless steel heat exchangers 
  • Either 8 to 40 plates or 10 to 80 plates
  • Length from 207mm to 526mm

OPEN ZB ZILMET DATASHEET
OPEN ZC ZE ZILMET DATASHEET
Hawco Thermoplastic Hoses

Thermoplastic Hoses

Flexible and robust tubing, offering a quick-to-install alternative to traditional copper tube

OPEN ZEC THERMOPLASTIC TUBE DATASHEET

Valves and Pressure Switches

Sanhua offer advanced EEVs with dual independent control alongside 4-way reversing valves for reliable switching between cooling mode and heating mode by changing the flow path of the refrigerant 
Hawco Electronic Expansion Valves

Electronic Expansion Valves and Controllers

Bidirectional stepper EEVs with cooling capacity from 4 to 109kW
  • Optimised flow path design for noise reduction
  • Available with dual independent EEV controller for accurate and efficient superheat control
OPEN SANHUA EEV DATA SUMMARY
View full DBF expansion valve data
View full TS/S expansion valve data
View Carel E2V - F EEV data
Hawco 4-Way Reversing Valves

4-Way Reversing Valves

Designed for 4kW to 650kW cooling capacity and 45 bar coil 
  • Several designs available
  • Choice of lead wires or spade (Faston) electrical connections 
OPEN SANHUA SHF DATA SUMMARY
View R410A 4-way reversing valve data
View R290 4-way reversing valve data
View full 4-way reversing valve data
Hawco Solenoid Valves

Solenoid Valves

15 sizes available with solder ODF connections: sizes from ¼” to 5/8”
  • AC or DC voltage up to 45 bar 
  • Angle shape (90°) or straight shape 
OPEN SANHUA MDF DATA SUMMARY
Hawco Pressure Switches

Pressure Switches

  • Automatic reset IP67 pressure switch, from 0.9 to 35 bar 
  • IP66/67 pressure sensor for max pressure of 16 to 60 bar 
OPEN SANHUA MPS AND YCQ DATASHEET
View Match-well Pressure Switches Range
View Carel Ratiometric transducers data
View Carel Ratiometric pressure sensors data

Line Components & Bimetallic Thermostats

Fully enabled for R290, line components from Sanhua are built for reliabilty. We also supply appropriate bimetallic thermostats for overheat protection, ensuring a safety cutout for booster heaters and drain pan heaters. 
Hawco Line Components

Line Components

Complete range of Sanhua line components
  • Piston & magnetic check valves
  • Service valves
  • Mufflers
  • Single and bi-flow filter driers
OPEN LINE COMPONENTS DATASHEET
Hawco Accumulators, Liquid Receivers, and Mufflers

Accumulators  & Liquid Receivers

Accumulator with a carbon steel body
  • Suitable for pressure up to 32 bar with RS485 communication 
OPEN ACCUMLATOR DATASHEET
Hawco NGT Bimetallic

NGT Bimetallic Thermostats

Overheat protection for back-up or booster heaters and drain pan heaters
  • Manual or auto-reset
OPEN TYPE 52P DATASHEET
OPEN TYPE 52N DATASHEET
OPEN TYPE 82N DATASHEET
Hawco NGT Bimetallic

ATEX-Approved Bimetallic Thermostats

Auto-reset thermostat suitable for use with R290

VISIT NGT 12P PRODUCT PAGE
VISIT NGT 12EN PRODUCT PAGE

Tools & Resources

A Few Examples of What We Do

Hawco Scroll Compressors for European OEM

Scroll Compressors for European OEM

We supply 1,500 vertical scroll compressors a month to a major heat pump manufacturer in Europe. The SCI compressors are integrated into a R290 inverter-driven monobloc heat pump, which delivers an impressively high efficiency of 5.55 COP.
Hawco Heat Pump Start-Up

Design Support for Heat Pump Start-Up

We've been advising a newly-established heat pump provider with detailed product support spanning multiple heat pump components. With a focus on reliability, we have designed a package of components that meet their stringent test conditions. 
Hawco Heat Pump Safety

Heat Pump Safety

We supply ceramic bimetallic thermostats with auto reset function that is rated up to a maximum of 230C, ideal for use in overheat protection of heat pump back up heaters. 

Our trusted heat pump component brands

Image slider
Focused on Improving Performance
We work closely with OEMs on the development of their heat pumps, helping to make them more efficient and robust. With our extensive knowledge of HVAC systems, we can advise your designers on what can be achieved and which components are best for your application.  
Hawco Refrigeration Support
Hawco Refrigeration Support
Supporting Your Production
As your supply chain partner, we manage the timely procurement of essential components to meet your production schedule. We will also recommend parts that are quicker and easier to install, helping to reduce your assembly time.  
Here to support you

Take your products to the next level

We would like to hear about your plans for future heat pump developments - and discuss how we might help you with your product design. Call +44 (0)1483 869 070 or email sales@hawco.co.uk

Need help finding the right component?

With our technical experience and application knowledge, let us help you specify the right component. 

Discuss your custom requirements

We can suggest special parts or custom components that fit with the way you work. To discuss your requirements, contact us on +44 (0)1483 869 070 or email sales@hawco.co.uk
Hawco Ltd Refrigeration

HVAC Components for Air Source Heat Pump Manufacturers

We work with air source heat pump manufacturers, assisting them with their system design to help deliver greater product efficiency.

In addition to compressors with inverter control and heat exchangers optimised for heat pump applications, we can recommend compatible valves, line components and safety cutouts to complete your design.

Compressors and Inverter Drives

Heat pump performance is driven by the compressor chosen for your application. We recommend inverter-driven compressors from SCI, an innovative Thai producer that manufactures 4 million refrigeration compressors a year. Compressors can be matched with a selection of three different inverter control options, giving greater design flexibility. 

Additional compressors available on request.
Hawco Scroll Compressors

R290 Scroll Compressors

Inverter-driven vertical scroll compressors from SCI with a nominal capacity of 1.5kW to 17.5kW
  • A+++ efficiency with patented FCT technology to cut energy use 
  • ATEX terminal separated from compressor terminal
OPEN SCI APB DATASHEET
Hawco Scroll Compressors

R454B Scroll Compressors

Two inverter driven models with a nominal capacity of 24.4kW and 34kW

OPEN HITACHI YC221122 DATASHEET
OPEN HITACHI YC222202 DATASHEET
Hawco Rotary Compressors

R290 Rotary Compressors

Inverter-driven rotary compressors from SCI with a nominal capacity of 11.1kW 
  • Available with a dedicated SCI inverter drive or Coolvert controller from Invertek Drives 
OPEN SCI SPB AND TPB DATASHEET
Hawco Inverter Drives

Inverter Drives

Choice of additional inverter controllers from Invertek Drives and Sanhua

OPEN OPTIDRIVE COOLVERT DATASHEET
OPEN SANHUA SD DATASHEET
OPEN SCI INVERTER DRIVE DATASHEET

Heat Exchangers

Sanhua is our recommended choice for R290 heat pump heat exchangers. With their horizontal flow, Sanhua's micro-channel heat exchangers provide excellent heat transfer compared to traditional fin and tube coils. A wide range of brazed plate heat exchangers benefit from a patented asymmetric plate design to give a 25% lower pressure drop on the secondary side. 
Hawco Heat Exchangers

Sanhua Micro-Channel Heat Exchangers

MCHE heat pump coil from Sanhua with a small, lightweight and compact design 
  • High system efficiency
  • 30% reduced refrigerant charge 
OPEN SANHUA MCHE BROCHURE 
Hawco Brazed Plate Heat Exchangers

Sanhua Brazed Plate Heat Exchangers

BPHE from Sanhua suitable for heat pumps with a capacity range between 5kW and 90kW
  • Optimised for efficient heat transfer with a small footprint
  • Lower water side pressure drop 
OPEN SANHUA S40A, S60 and S60B DATA SUMMARY
Hawco Zilmet Brazed Plate Heat Exchangers

Zilmet Brazed Plate Heat Exchangers

Stainless steel heat exchangers 
  • Either 8 to 40 plates or 10 to 80 plates
  • Length from 207mm to 526mm

OPEN ZB ZILMET DATASHEET
OPEN ZC ZE ZILMET DATASHEET
Hawco Thermoplastic Hoses

Thermoplastic Hoses

Flexible and robust tubing, offering a quick-to-install alternative to traditional copper tube

OPEN ZEC THERMOPLASTIC TUBE DATASHEET

Valves and Pressure Switches

Sanhua offer advanced EEVs with dual independent control alongside 4-way reversing valves for reliable switching between cooling mode and heating mode by changing the flow path of the refrigerant 
Hawco Electronic Expansion Valves

Electronic Expansion Valves and Controllers

Bidirectional stepper EEVs with cooling capacity from 4 to 109kW
  • Optimised flow path design for noise reduction
  • Available with dual independent EEV controller for accurate and efficient superheat control
OPEN SANHUA EEV DATA SUMMARY
View full DBF expansion valve data
View full TS/S expansion valve data
View Carel E2V - F EEV data
Hawco 4-Way Reversing Valves

4-Way Reversing Valves

Designed for 4kW to 650kW cooling capacity and 45 bar coil 
  • Several designs available
  • Choice of lead wires or spade (Faston) electrical connections 
OPEN SANHUA SHF DATA SUMMARY
View R410A 4-way reversing valve data
View R290 4-way reversing valve data
View full 4-way reversing valve data
Hawco Solenoid Valves

Solenoid Valves

15 sizes available with solder ODF connections: sizes from ¼” to 5/8”
  • AC or DC voltage up to 45 bar 
  • Angle shape (90°) or straight shape 
OPEN SANHUA MDF DATA SUMMARY
Hawco Pressure Switches

Pressure Switches

  • Automatic reset IP67 pressure switch, from 0.9 to 35 bar 
  • IP66/67 pressure sensor for max pressure of 16 to 60 bar 
OPEN SANHUA MPS AND YCQ DATASHEET
View Match-well Pressure Switches Range
View Carel Ratiometric transducers data
View Carel Ratiometric pressure sensors data

Line Components & Bimetallic Thermostats

Fully enabled for R290, line components from Sanhua are built for reliabilty. We also supply appropriate bimetallic thermostats for overheat protection, ensuring a safety cutout for booster heaters and drain pan heaters. 
Hawco Line Components

Line Components

Complete range of Sanhua line components
  • Piston & magnetic check valves
  • Service valves
  • Mufflers
  • Single and bi-flow filter driers
OPEN LINE COMPONENTS DATASHEET
Hawco Accumulators, Liquid Receivers, and Mufflers

Accumulators  & Liquid Receivers

Accumulator with a carbon steel body
  • Suitable for pressure up to 32 bar with RS485 communication 
OPEN ACCUMLATOR DATASHEET
Hawco NGT Bimetallic

NGT Bimetallic Thermostats

Overheat protection for back-up or booster heaters and drain pan heaters
  • Manual or auto-reset
OPEN TYPE 52P DATASHEET
OPEN TYPE 52N DATASHEET
OPEN TYPE 82N DATASHEET
Hawco NGT Bimetallic

ATEX-Approved Bimetallic Thermostats

Auto-reset thermostat suitable for use with R290

VISIT NGT 12P PRODUCT PAGE
VISIT NGT 12EN PRODUCT PAGE

Tools & Resources

A Few Examples of What We Do

Hawco Scroll Compressors for European OEM

Scroll Compressors for European OEM

We supply 1,500 vertical scroll compressors a month to a major heat pump manufacturer in Europe. The SCI compressors are integrated into a R290 inverter-driven monobloc heat pump, which delivers an impressively high efficiency of 5.55 COP.
Hawco Heat Pump Start-Up

Design Support for Heat Pump Start-Up

We've been advising a newly-established heat pump provider with detailed product support spanning multiple heat pump components. With a focus on reliability, we have designed a package of components that meet their stringent test conditions. 
Hawco Heat Pump Safety

Heat Pump Safety

We supply ceramic bimetallic thermostats with auto reset function that is rated up to a maximum of 230C, ideal for use in overheat protection of heat pump back up heaters. 

Our trusted heat pump component brands

Image slider
Focused on Improving Performance
We work closely with OEMs on the development of their heat pumps, helping to make them more efficient and robust. With our extensive knowledge of HVAC systems, we can advise your designers on what can be achieved and which components are best for your application.  
Hawco Refrigeration Support
Hawco Refrigeration Support
Supporting Your Production
As your supply chain partner, we manage the timely procurement of essential components to meet your production schedule. We will also recommend parts that are quicker and easier to install, helping to reduce your assembly time.  
Here to support you

Take your products to the next level

We would like to hear about your plans for future heat pump developments - and discuss how we might help you with your product design. Call +44 (0)1483 869 070 or email sales@hawco.co.uk

Need help finding the right component?

With our technical experience and application knowledge, let us help you specify the right component. 

Discuss your custom requirements

We can suggest special parts or custom components that fit with the way you work. To discuss your requirements, contact us on +44 (0)1483 869 070 or email sales@hawco.co.uk