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Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe

Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe

£99,999.00
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Product Overview: At a Glance

The Polar Air PDWA 4-Pipe Fan Coil Unit is a versatile medium external static pressure (ESP) ducted hydronic terminal designed for concealed installation in residential, commercial, and specialist applications. With a compact footprint, flexible connection options, and high-performance heat exchangers, the PDWA range is engineered to deliver reliable heating and cooling where ducted air distribution is required.

The 4-pipe system enables simultaneous heating and cooling in different areas, making it ideal for buildings with varying thermal demands, such as north- and south-facing zones or spaces with differing occupancy levels.

Key Features & Benefits

  • 4-pipe hydronic configuration - Provides simultaneous heating and cooling in different zones
  • Medium ESP ducted design - Suitable for external static pressures up to 130 Pa (recommended 75 Pa)
  • Compact, low-profile casing - Ideal for ceiling voids and concealed installations
  • Energy-efficient EC motor - Reduced electrical consumption and improved part-load performance
  • Multiple coil row options - Enhanced heat transfer and improved latent capacity for humidity control
  • Flexible installation - Interchangeable coil connection sides for easier site coordination
  • Quiet operation - Suitable for noise-sensitive environments
  • Eurovent-certified performance - tested under Eurovent standard conditions

Typical Applications & Use Cases

The PDWA 4-Pipe fan coil is designed for projects requiring discreet ducted air delivery and dependable performance across a wide range of building types:

  • Residential: Apartments, condominiums, student accommodation
  • Hospitality: Hotel bedrooms, public areas, restaurants
  • Commercial: Offices, retail spaces, shopping centres
  • Healthcare: Clinics, treatment rooms, support spaces
  • Leisure & Public Buildings: Gyms, museums, theatres, airports

Its adaptability makes it suitable for both new-build and retrofit projects where ceiling space and duct routing may be constrained.

Technical Overview

The Polar Air PDWA is a medium ESP hydronic ducted fan coil unit designed for concealed installation and centralised air distribution. Its 4-pipe configuration allows simultaneous heating and cooling across different zones, making it well suited to buildings with varying thermal demands, such as north- and south-facing areas or spaces with changing occupancy levels. Energy efficient EC motors ensure reduced electrical consumption and multiple configuration options ensure flexibility for any project. Cooling capacity is up to 17.1 kW and heating capacity is up to 13.6 kW.

A comprehensive range of optional accessories - including valve kits, electric heaters, condensate pumps, insulation in multiple thicknesses, and advanced control options - enables the PDWA 4-pipe to be customised to meet specific project requirements and control strategies.


  
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Variant Variant total Quantity Price Variant total
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-200-P-ECPDWA-3R+1-200-P-EC
PDWA-3R+1-200-P-ECPDWA-3R+1-200-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-300-P-ECPDWA-3R+1-300-P-EC
PDWA-3R+1-300-P-ECPDWA-3R+1-300-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-400-P-ECPDWA-3R+1-400-P-EC
PDWA-3R+1-400-P-ECPDWA-3R+1-400-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-500-P-ECPDWA-3R+1-500-P-EC
PDWA-3R+1-500-P-ECPDWA-3R+1-500-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-600-P-ECPDWA-3R+1-600-P-EC
PDWA-3R+1-600-P-ECPDWA-3R+1-600-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-800-P-ECPDWA-3R+1-800-P-EC
PDWA-3R+1-800-P-ECPDWA-3R+1-800-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-1000-P-ECPDWA-3R+1-1000-P-EC
PDWA-3R+1-1000-P-ECPDWA-3R+1-1000-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-1200-P-ECPDWA-3R+1-1200-P-EC
PDWA-3R+1-1200-P-ECPDWA-3R+1-1200-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1400-P-ECPDWA-3R+1400-P-EC
PDWA-3R+1400-P-ECPDWA-3R+1400-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe
PDWA-3R+1-1600-P-ECPDWA-3R+1-1600-P-EC
PDWA-3R+1-1600-P-ECPDWA-3R+1-1600-P-EC
£0.00
£99,999.00/ea
 £0.00
£0.00
£99,999.00/ea
 £0.00
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Polar Air PDWA Medium ESP Ducted Fan Coil Unit - 4-Pipe FAQs

Who are Polar Air?
Polar Air are a global leader in providing high-performance hydronic fan coil solutions with decades of HVAC expertise. Headquartered in Murcia, Spain and with a presence in North America, Polar Air are poised to support clients globally with their large range (over 1,800 configurations) of fan coil products that are sold in 28 countries worldwide.
What is an EC motor?
EC, or Electronically Commutated motors are a type of very efficient, brush-less DC motors seeing increasing use in HVAC systems. The brush-less design over traditional carbon brushes allows for efficient operation on AC power while providing the benefits of DC motors. Such energy efficiency gains are important in the context of green energy goals and net-zero targets.
What is the difference between 2-pipe and 4-pipe hydronic fan coils
2-pipe systems feature one coil and one water circuit, a single heat exchanger (coil) is used for either heating or cooling with the system switching seasonally. 4-pipe systems feature two coils and two separate water circuits, this allows the unit to have one dedicated cooling coil and one dedicated heating coil to allow simultaneous heating and cooling.
Why Buy From The MEP Shop?
The MEP Shop is the UK’s leading online supplier of HVAC, VRF systems, heat pumps, and other mechanical, electrical, and plumbing (MEP) products. We provide genuine, high-quality equipment from only the top brands, competitive pricing, and reliable UK delivery. Contractors, engineers, and homeowners trust The MEP Shop for energy-efficient HVAC solutions and commercial or residential projects.
Can The MEP Shop Help With Technical Support and System Design?
Yes! Our expert team offers technical guidance for HVAC installation, VRF system selection, and MEP project planning. We help engineers, contractors, and DIY enthusiasts ensure compatibility, energy efficiency, and compliance with UK safety standards and building regulations. Contact us today to see how we can help you.
What Types of HVAC and MEP Products Do You Offer?
We stock an extensive range of MEP products, including VRF systems, air conditioning units, heat pumps, ventilation solutions, plumbing components, and electrical controls. Our catalogue is tailored for both commercial and residential applications, ensuring the right equipment for energy-efficient heating, cooling, and mechanical systems. We are committed to helping the UK reach net-zero, and this is reflected in the products we stock.

We’re Here to Help With All HVAC Requirements

Need any help with our range of Polar Air PDWA Ducted products? At The MEP Shop, we support projects of every scale with trusted HVAC solutions across the UK. Whether you’re specifying equipment for a commercial development, upgrading residential heating and cooling, or exploring energy-efficient options, our team is here to guide you. From product selection to aftercare, we provide expert advice and reliable service for all your HVAC needs.

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