What Is A Hot Deck Cold Deck System

Up of two dampers one for the cold deck and one for the hot deck.

What is a hot deck cold deck system.

These two airflows are then mixed together to create the right amount of heating and cooling for each space. By moving the insulation to the outside of the structure the roof deck is effectively brought inside which results in a warm deck hence the name this removes the the possibility of condensation forming on the underside of the deck and eliminates damp. Hot deck cold deck systems are an air handler based solution where the flow for the building is split into two with one part being heated and one part being cooled. As the damper opens one deck it closes the other and vice versa.

Hot and cold deck reset an air handling unit ahu controller can control a multi zone air handler. Some multizone units control one deck or the other in a multipoint arrangement such that the nearest to full heating controls hot deck temperature. Therefore one actuator may operate the cold deck and hot deck simultaneously. It explains how to use the ahu to reset the hot.

The hot and cold air streams. More solid and safe under foot duralife decking is backed by a 25 year warranty it is stain and fade resistant mold and mildew resistant and is available in the colors and deck railing options you want. Systems utilize a parallel arrangement of heating and cooling surfaces commonly referred to as hot and. Because this design works by conserving heat no ventilation is required.

Each zone requires an actuator application. Dual duct systems have a hot deck or duct network supplying 90 to 95 f air and a cold deck at 55 to 60 f. What does cold deck mean. Are combined in mixing boxes or plenums to satisfy the individual space temperature requirements.

In some systems this control may remain for example where the signal is a function of the thermostat branch line pressure. The main types of hot deck cold deck system are. Meaning of cold deck. This application note is relevant when using an ahu to control a multi zone air handler.

Cold decks for providing heating and cooling capabilities simultaneously. The damper blades for the hot and cold decks are linked together and offset by 90. Hvac more info can be found here.