Parallel fan powered terminal unit

Abstract

Aspects of the present disclosure include a primary air chamber configured to receive primary air, an induced air chamber configured to receive secondary air, a heating coil disposed in the induced air chamber, wherein the heating coil is removable from the induced air chamber without disassembling at least a portion of the induced air chamber, and the heating coil does not receive the primary air, a fan disposed in the induced air chamber, wherein the fan is configured to blow the secondary air received via the induced air chamber toward the heating coil and the heating coil heats the secondary air.

What is claimed is: 
     
         1 . A terminal unit, comprising:
 a primary air chamber configured to receive primary air;   an induced air chamber configured to receive secondary air;   a heating coil disposed in the induced air chamber, wherein:
 the heating coil is removable from the induced air chamber without disassembling at least a portion of the induced air chamber; and 
 the heating coil does not receive the primary air; and 
   a fan disposed in the induced air chamber, wherein the fan is configured to blow the secondary air received via the induced air chamber toward the heating coil and the heating coil heats the secondary air.   
     
     
         2 . The terminal unit of  claim 1 , further comprises a damper in the primary air chamber for regulating a flow of the primary air through the primary air chamber. 
     
     
         3 . The terminal unit of  claim 2 , further comprises a controller including:
 a memory;   a communications circuit; and   one or more processors communicative coupled with the memory and the communications circuit, the one or more processors are configured to:
 receive, via the communications circuit, one or more control signals; and 
 control at least one of the damper, the heating coil, or the fan in response to the one or more control signals. 
   
     
     
         4 . The terminal unit of  claim 1 , wherein the removable heating coil slidingly engages the induced air chamber. 
     
     
         5 . The terminal unit of  claim 1 , wherein the removable heating coil slidingly engages the induced air chamber via one or more tracks. 
     
     
         6 . A method of controlling air flow, comprising:
 receiving a feedback signal from a thermostat; and   transmitting, in response to the feedback signal, a control signal to a terminal unit, wherein the terminal unit comprises:
 a primary air chamber configured to receive primary air; 
 an induced air chamber configured to receive secondary air; 
 a heating coil disposed in the induced air chamber, wherein:
 the heating coil is removable from the induced air chamber without disassembling at least a portion of the induced air chamber; and 
 the heating coil does not receive the primary air; and 
 
 a fan disposed in the induced air chamber, wherein the fan is configured to blow the secondary air received via the induced air chamber toward the heating coil and the heating coil heats the secondary air. 
   
     
     
         7 . The method of  claim 6 , wherein the terminal unit further comprises a damper in the primary air chamber for regulating a flow of the primary air through the primary air chamber. 
     
     
         8 . The method of  claim 7 , wherein the terminal unit further comprises a controller including:
 a memory;   a communications circuit; and   one or more processors communicative coupled with the memory and the communications circuit, the one or more processors are configured to:
 receive, via the communications circuit, the control signal; and 
 control at least one of the damper, the heating coil, or the fan in response to the one or more control signals. 
   
     
     
         9 . The method of  claim 6 , wherein the removable heating coil slidingly engages the induced air chamber. 
     
     
         10 . The method of  claim 6 , wherein the removable heating coil slidingly engages the induced air chamber along one or more tracks.