February 15, 2022

149 Series: The Little Great Fan-Coil Kit

Dealing with terminal units, such as fan coils and air handling units, can be a tough matter without the right equipment. Thanks to its long-time experience in heating and cooling systems beside the installers, Caleffi developed 149 Series just to make installer’s life easier and carefree, keeping Caleffi top-quality standards that all the world recognizes.

Caleffi 149 series, the compact pre-assembled kit for terminal units, is composed by all the devices needed to ensure correct operations on the hydronic system, quick commissioning and easy maintenance.

The dynamic balancing of the system is ensured by Caleffi diaphragm-type PICV 145 series, that can be equipped with an ON/OFF or a modulating 0-10 V actuator. The inner dynamic element can easily be replaced to ensure long life to the whole assembly.

Caleffi PICV features equal percentage control and full stroke modulation. Furthermore, a unique plus is that the valve does not drop authority even at setting different than 100 % open position, thanks to its special internal configuration.

Two three-way valves allow an easy periodic flushing of the system and an integrated cartridge strainer will protect the terminal unit, to ensure always the maximum performance. Such valves can be also used for bypass or isolation of the unit.

A calibrated Venturi flow measurement device will allow an easy and precise commissioning phase, thanks also to the user-friendly setting of Caleffi PICV 145 series.

The multiple-size connections (1/2’’, 3/4‘’, 1”, 1 ¼”) and the huge available range of PICV make Caleffi 149 series suitable for all systems. The possibility of adding flexible hoses, increases its universality of installation.

The number of joints is reduced to the minimum in order to avoid water leakages in the long-term period.

All the levers and ports are installed on the side of the kit in order to make it symmetrical for universal installation (the kit can be reversed, so that it always matches the pipe configuration of the unit).

The energy efficiency is ensured by the pre-formed insulation, made of rigid EPP material, that also prevents condensation issues, whilst complying with local fire regulations.