Table of Contents
What does FPTU mean?
FPTU
| Acronym | Definition |
|---|---|
| FPTU | France Passion des Transports Urbains (French urban transport association) |
What is an air terminal unit?
Air terminal units can be considered as a local air handling device for individual zones within a building. The air terminal unit manages supply air from a central air handling station by controlling the volume and temperature of the air supplied to a space via the air diffuser.
What is FPTU in HVAC?
A fan powered terminal unit (FPTU), commonly referred to as a fan powered box (FPB), is an air terminal unit which contains both a primary air inlet, as well as a local motor and blower assembly.
How does a fan powered terminal unit work?
Fan Powered Terminal Units In cooling mode, parallel FPTUs operate exactly like single duct terminal units. When heat is required by the thermostat, the fan is activated and draws warm air from the plenum above the ceiling. This air mixes with the primary air from the air handler and is then run over a heating coil.
What is a powered induction unit?
Powered Induction units (also known as fan-assisted terminal units) ensure that dumping of the supply air will not occur. They contain a small fan which mixes the supply air with re-circulated room air to provide a constant volume supply to the space. The fan is downstream of the primary and secondary air inlets.
How do perimeter induction units work?
Air is supplied at high velocity to terminal induction units, mainly perimeter mounted, which are fitted with heating and cooling coils. Air is forced out of nozzles in the unit at a velocity high enough to induce entrainment of recirculation air from the space in the discharge jets.
What is a fan powered terminal unit?
A fan powered terminal unit, commonly referred to as a fan powered box, is an air terminal unit which contains both a primary air inlet, as well as a local motor and blower assembly. Fan powered terminals generally come in either a parallel or series arrangement, determined by the location of the fan in the assembly.
What is a terminal fan?
Terminal fans occur where sediment-laden streams decrease in size and vanish as a result of evaporation and transmission losses. They tend to form in arid or semi-arid regions which are characterized by a moisture deficit. This is the result of the decline of both water depth and stream power downslope.
What does an induction unit do?
Induction unit is a type of air handling unit that is an element of the HVAC system that cools and spreads the air through the entire duct.
How does an induction system work?
The flow is set according to the number of people in the rooms. The AHU creates the primary air always at the same temperature for the inductions terminal. This primary air is passed through an array of nozzles in the terminal unit that creates a vacuum effect. This effect is the induction phenomena.
What is a fan powered VAV?
In a series fan-powered variable air volume (VAV) system, each zone is conditioned by a box with a small fan that draws-in plenum return air and mixes it with supply air from a primary system. The primary system is similar to variable air volume (VAV), with the primary air supplied at a fixed temperature.