2. Types of

temperature control units

Types of temperature control units

Wavin provides for two types of temperature control :

•

Manifold control units

•

Heating plant temperature control units

Manifold control units

The manifold mixing and distribution units are designed for

heating and/or cooling systems of small / medium size, and are

intended for uses in which a room cannot be set aside for a

heating plant.

Their characteristic is that they have a mixing valve prepared for

using a thermostatic head, rather than an electric servomotor.

This therefore makes both independent installations, in case of

fixed point heating systems, and control unit controlled instal-

lations, in the case of air-conditioning heating or cooling sys-

tems. They are also fitted with a Class A inverter circulator, and

a safety thermostat.

Block diagram

They are designed for uses in which, despite a number of mani-

folds being envisaged for the radiant system and where better

water temperature control is required than the generators are

able to provide on their own, due to a lack of space, it is not pos-

sible to incorporate the necessary mixing units in a single posi-

tion. This means that distribution of the manifolds is adopted to

find installation points locally.

This also makes it possible to create as many mixed zones with

different water temperatures as there are manifolds, which is

especially useful in multi-floor buildings or, in general, where dif-

ferent zones are subject to very different loads.

The block diagram shows a radiant heating system, fed from a

traditional high temperature boiler, and a heat pump (or cooler)

. Thanks to the addition of supplementary high temperature

connections, towel rails added to the bathrooms, was also con-

nected up.

Boiler

P.D.C. / Cooler

High Temperature Circuit

Radiant System Circuits

Low Temperature

Control unit

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Manifolds and Temperature Control Units - Product Guide

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