Caladair Silvertop 23 Smart Zone Commercial MVHR Unit


Caladair Silvertop 23 Smart Zone Commercial MVHR Unit
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£8,351.46 £6,959.55
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Caladair Silvertop 23 Smart Zone Commercial MVHR Unit

Top Quality MVHR unit with constant pressure that is suitable for Zoned areas allowing you to conserve energy and provide a quieter and more efficient system 

The benefit of a zoned system is that you only ventilate the zoned areas if and when required

An example of this could be a large busy office with meeting rooms, the main office would be ventilated, and the meeting rooms would only be ventilated when used

The Silvertop Smart Zone unit will automatically increase and decrease the airflow rate depending on how many zones need ventilated

Key Features

  • Airflow rates are 100% adjustable
  • Airflow rate at 200Pa: 2300 m3/h
  • Heat recovery up to 90%
  • 100% summer bypass
  • Touch LCD display panel
  • Ultra-quiet thermal insulated double skin construction
  • High efficiency double flow 100% plug and play Bluetech concept
  • Energy efficient electronic commutation (EC) motors
  • Aluminium counter flow heat exchanger
  • Digital controller
  • Frost protection
  • Multiple control options
  • Weight - 500kg
  • Duct Connections - 4 x 400mm
  • 2-year warranty
  • Possible integration via Modbus, Bacnet or web

Zoning options

Zones are controlled with electric duct dampers that can be operated by a few solutions:

  • PIR sensor – will detect occupation and increase airflow
  • Co2 sensor – will detect high levels of Co2 and increase airflow
  • Wall switch – increase airflow by pressing switch
  • Light – increase airflow when the light is switched on
  • BMS – increase or decrease zoned areas and unit by BMS system
  • The dampers can also be set to various airflow rates when open or closed

Heating & Cooling

Available heating and cooling accessories include:

  • Electric Preheater to prevent frost affecting the unit
  • Electric Post heater to increase room temperature
  • Water heater that can be used as heater a pre or post heater

Energy Exchanger:

Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery


This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection


Indoor installation

Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters).

Insulation of Ductwork

We recommend you use Metal Spiral ducting and fittings due to superior strength.



Length (mm)

Width (mm)

Height (mm)

Silvertop 23





In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation.


2-year parts guarantee

Please Note – These units are built to order

For a lead time on these Caladair Neotime Commercial Units please contact our sales team on 028 2827 5150

Technical Specification

Caladair Silvertop 23 Smart Zone Commercial Technical Specification


Caladair Silvertop Smart Zone 23

Heat Recovery efficiency %

Up to 90%

Airflow rate @ 200Pa m3/h


ERP rating


Specific fan power (lowest)



500 Kg


1 x F7 and 1 x G4

Pre/ Post Heater

Optional accessory

Summer Bypass 


Frost protection 



Ceiling / Floor

Ductwork connections

4 top ductwork connections

Duct Diameter (mm)

4 x 400


2 years: parts only

Country of manufacture


Heat exchanger

Counterflow heat exchanger (Aluminium)

Digital Controller

Standard remote LCD display control

Boost Switch control

No (optional timer box)

Interactive App Control


Internal Humidity control


Available room sensors

Humidity, Timer, PIR





SAP Appendix Q


Fireplace mode


Alarm system integration


Passive House



BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated dispatch team work hard to ensure the highest standards are met so that your goods arrive on-time and in pristine condition.

Our market knowledge and experience allow us to match our service to meet your requirements swiftly and safely.

Free Delivery

We offer free delivery on any order over £250 to any mainland UK or Ireland address  

Worldwide Delivery

Worldwide delivery is possible on almost all our products at low costs, delivery to countries outside the EU are normally delivered to the nearest customs office, port or terminal for the purchaser to collect and complete custom clearance.

Please contact us to confirm shipping cost and availability.  

End-To-End Support Delivery is available within 48-72 hrs, depending on method of transport, for hundreds of stock items.

Customers receiving a pallet delivery will be emailed on day of dispatch advising of delivery date. Parcel deliveries will be notified via email or SMS directly from DPD.

These checks are part of a unique commitment to building relationships with customers, understanding their specific delivery needs and responding to them positively and promptly.  

We deliver on Service

Key components such as ductwork and fittings plus the most popular selling MVHR units are kept in stock in our UK-based warehouse, which means that you receive the best possible delivery dates.

All goods are expertly packed by a professional team so that your equipment is received in pristine condition ready for installation.

All deliveries co-ordinated to suit your specific requirements and construction programme.

Delivery Partners

We only use the couriers with the highest standard of service that include

  • Fastway
  • DPD
  • Montgomery Transport
  • Liam Connolly Roadfreight Ltd
  • Europa Worldwide


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Installation Service

If you would like to learn more about our installation service, please contact us:

Call us on 028 28 275 150 or click below to contact us online

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