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Zehnder Caladair Freetime First Eco 3500

Zehnder Caladair Freetime First Eco 3500

SKU : KCDF024153

Overview

The Zehnder Caladair Freetime First Eco 3500 is a high-performance, energy-efficient commercial heat recovery unit designed for industrial and commercial applications. Featuring advanced zoning controls, heating & cooling compatibility, and high-efficiency filtration, this unit ensures superior indoor air quality and optimal performance
Regular price ยฃ13,270.72 GBP Sale price ยฃ8,891.38 GBP
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  • For warranty information, please refer to the manufacturerโ€™s warranty policy or contact them directly.
  • Order before 5pm Mon-Thurs, Dispatched Next day
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Description

Zehnder Caladair Freetime First Eco 3500

Product Part Number:

Caladair FREETIME 3500 First Eco - CAL24

Description ๐Ÿ“„

The Zehnder Caladair Freetime First Eco 3500 is a high-performance, energy-efficient commercial heat recovery unit designed for industrial and commercial applications. Featuring advanced zoning controls, heating & cooling compatibility, and high-efficiency filtration, this unit ensures superior indoor air quality and optimal performance.

Additional Zoning Options ๐Ÿ”ง

Optional extras allow zone control via electric duct dampers, operated through:

  • PIR Sensor โ€“ Detects occupancy and increases airflow.
  • COโ‚‚ Sensor โ€“ Detects high COโ‚‚ levels and adjusts airflow.
  • Wall Switch โ€“ Manually increases airflow.
  • Light Sensor โ€“ Adjusts airflow when lights are switched on.
  • BMS (Building Management System) โ€“ Controls zoned areas and unit settings.
  • Dampers โ€“ Configurable to various airflow rates when open or closed.

For customization and additional zoning options, contact our sales team at 028 2827 5150.

Heating & Cooling Accessories ๐ŸŒก๏ธ

Available accessories include:

  • Electric Preheater โ€“ Prevents frost buildup.
  • Electric Post Heater โ€“ Increases room temperature.
  • Water Heater โ€“ Can be used as a pre-heater or post-heater.

Controllability โš™๏ธ

A Digital Control Panel is available for use when not connected to a BMS system.

LCD Controller Functions:

  • ๐Ÿ“… Weekly timer
  • ๐Ÿ–๏ธ Holiday timer
  • ๐ŸŒ™ Summer by-pass / Night-time cooling
  • โš ๏ธ Fault finding
  • โšก Speed parameters
  • ๐Ÿ”ด Filter indicator
  • ๐Ÿ”ฅ Fire alarm integration
  • ๐ŸŒก๏ธ Temperature sensors
  • ๐Ÿ“ก Integration via Modbus, Bacnet, or Web

Filtration ๐Ÿงผ

  • 1x F7 large-capacity pollen intake filter
  • 1x G4 extract filter

Construction ๐Ÿ—๏ธ

  • Outer Construction: Airtight 10-gauge galvanized steel double-skin panels with 25mm high-density mineral wool insulation in accordance with EN1886.
  • External Face: Pre-lacquered with a protective film in RAL 7035.
  • Connections: Circular branch connections with rubber seals. Airtight construction to ATEC CSTB nยฐ 13-224-12.
  • Mounting: Crimped hanging brackets for ceiling mounting.

Heat Exchanger ๐Ÿ”„

  • Highly efficient aluminium counter-flow heat exchanger that provides up to 90% heat recovery, designed for lifetime use.

Motors ๐Ÿ”Œ

  • 2x low-energy, high-efficiency backward curved EC motors with heat and speed protection.

Installation ๐Ÿ 

  • The unit is horizontally mounted on the ceiling or floor with adjustable hanging brackets. Ensure the structure can support the unitโ€™s weight.
  • Condensate Drain: 15mm BSP metal pipe provided on the side of the unit, which should be connected to a drain via a waterless trap.

Dimensions ๐Ÿ“

Model Length (mm) Width (mm) Height (mm)
Freetime 3500 1085 1420 1730


Installation of Ductwork ๐Ÿ› ๏ธ

We recommend using Metal Spiral Ducting and fittings for superior strength. To ensure optimal airtightness and durability, use self-sealing fittings or a combination of Ducting Sealant and Aluminium Duct Sealing Tape.

Accessories ๐Ÿงฐ

A full range of controls, sensors, in-line silencers, floor/wall/ceiling inlets, and outlet diffusers are available to complete the installation.

Guarantee ๐Ÿ”’

  • 2-Year Parts Guarantee for peace of mind.

Please Note โ€“ These units are built to order. For lead times on the Caladair Freetime Commercial Units, please contact our sales team at 028 2827 5150.

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