Outside air handling unit

Patent metadata

Field	Value
Publication number	US-2016003489-A1
Application number	US-201414771341-A
Country	US
Kind code	A1
Filing date	Mar 4, 2014
Priority date	Mar 4, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

An outside air handling unit and method for delivering conditioned air to individual heating/cooling zones of a building regardless of whether heating/cooling in needed. The outside air handling unit includes a liquid supply line which is connected to and draws liquid from a chilled supply line of the building.

First claim

1 . An outside air handling unit for delivering conditioned air to individual heating/cooling zones of a building regardless of whether heating/cooling in needed, the outside air handling unit comprising:
a liquid supply line which is connected to and draws liquid from a chilled supply line of the building.

2 . The outside air handling unit as recited in claim 1 , wherein a liquid return line extends from the outside air handling unit and is connected to and is in fluid communication with a chilled return line of the building.

3 . The outside air handling unit as recited in claim 1 , wherein a first coil is provided to pre-cool the outside air entering the outside air handling unit.

4 . The outside air handling unit as recited in claim 3 , wherein a second coil is provided to further condition the outside air after the outside air encounters the first coil.

5 . The outside air handling unit as recited in claim 4 , wherein the second coil is an evaporator coil.

6 . The outside air handling unit as recited in claim 5 , wherein a liquid cooled condenser is provided, the liquid cooled condenser receives the liquid from the first coil.

7 . The outside air handling unit as recited in claim 3 , wherein a bypass circuit is provided to direct fluid exiting the first coil to be directed to the liquid return line, bypassing a liquid cooled condenser of the air handling unit.

8 . The outside air handling unit as recited in claim 1 , wherein a pump is provided to regulate the flow of the liquid through the outside air handling unit.

9 . The outside air handling unit as recited in claim 1 , wherein a control unit is provided to control the operation of the outside air handling unit.

10 . An outside air handling unit for delivering conditioned air to individual heating/cooling zones of a building regardless of whether heating/cooling in needed, the outside air handling unit comprising:
a liquid supply line which is connected to and draws liquid from a chilled supply line of the building; a liquid return line extends from the outside air handling unit and is connected to and is in fluid communication with a chilled return line of the building; and a first coil is provided to pre-cool the outside air entering the outside air handling unit.

11 . The outside air handling unit as recited in claim 10 , wherein a second coil is provided to further condition the outside air after the outside air encounters the first coil.

12 . The outside air handling unit as recited in claim 11 , wherein a liquid cooled condenser is provided, the liquid cooled condenser receives the liquid from the first coil.

13 . The outside air handling unit as recited in claim 12 , wherein a bypass circuit is provided to direct fluid exiting the first coil to be directed to the liquid return line, bypassing the liquid cooled condenser.

14 . The outside air handling unit as recited in claim 10 , wherein a pump is provided to regulate the flow of the liquid through the outside air handling unit.

15 . The outside air handling unit as recited in claim 10 , wherein a control unit is provided to control the operation of the outside air handling unit.

16 . A method of delivering conditioned air to individual heating/cooling zones of a building regardless of whether heating/cooling in needed, the method comprising:
drawing liquid from a building cooling loop into an outside air handler unit; pre-cooling outside air with a first coil which receives the liquid from the building cooling loop.

17 . The method of claim 16 , further comprising:
directing the liquid exiting the first coil to a condenser which is in fluid communication with a second coil; directing the outside air to the second coil, allowing the second coil to further condition the outside air.

18 . The method of claim 17 , further comprising:
returning the liquid from the condenser to the building cooling loop.

19 . The method of claim 16 , further comprising:
returning the liquid from the first coil to the building cooling loop.

20 . The method of claim 16 , further comprising:
regulating the flow of liquid through the first coil and the air handling unit.

Assignees

• Johnson Controls Tech Co

Inventors

• Casper Ian Michael
• Schwartz John R
• Van Buren Rick
• Bade John Evan
• Kauffman Justin P
• Smith Brian
• Adams Mark A
• Doll Jr Martin L
• Staub Nicholas
• Nadeau Richard W
• Shaub Matthew J
• Gao Sean
• Rudio Christian C
• West Jonathan D

Classifications

• F24F3/08 Primary

  with separate supply and return lines for hot and cold heat-exchange fluids {i.e. so-called "4-conduit" system} · CPC title

• F24F3/001

  in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle (reversible cycle for humidifying and drying air F24F3/147) · CPC title

• F28F13/06

  by affecting the pattern of flow of the heat-exchange media {(F28F13/003 takes precedence; static flow control means in header boxes F28F9/026)} · CPC title

• F24F11/84

  using valves · CPC title