# US 2019/0316807 A1 · Heat pump with integrated energy recovery ventilator (erv)

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- Number: US 2019/0316807 A1
- Document ID: US20190316807A1
- Status: Published application
- Kind: A1
- Application number: 15/953,259
- Filed: 2018-04-13
- Published: 2019-10-17
- Earliest claimed: 2018-04-13
- Assignees: Johnson Controls Technology Company
- Applicants: Johnson Controls Technology Company
- Inventors: Sandeep Singh; Sasa Misaljevic; Nivedita Nath; Deepak Shetty; Biplab Bardhan
- Web page: https://patentgrep.com/patent/US20190316807A1

## CPC

- F24F 1/0003: characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
- F24F 13/20: Casings or covers
- F24F 12/001: {with heat-exchange between supplied and exhausted air}
- F24F 12/006: {using an air-to-air heat exchanger (F24F12/002 takes precedence)}
- F24F 2203/021: Compression cycle
- Y02B 30/52: Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
- Y02B 30/56: Heat recovery units
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

A heating, ventilation, and air conditioning (HVAC) system includes a heat pump having a housing. The HVAC system also includes an energy recovery ventilator (ERV) or heat recover ventilator (HRV) integrated with the heat pump such that an access panel to the ERV or HRV faces outwardly from the housing of the heat pump, and such that the access panel is accessible at an outer boundary of the housing.

## Claims

### Claim 1

A heating, ventilation, and air conditioning (HVAC) system, comprising:
a heat pump comprising a housing; and
an energy recovery ventilator (ERV) or heat recovery ventilator (HRV) integrated with the heat pump such that an access panel to the ERV faces outwardly from the housing of the heat pump, and such that the access panel is accessible at an outer boundary of the housing.

### Claim 2 (depends on 1)

The HVAC system of claim 1, comprising an integration frame having a ledge to which the ERV or HRV is attached, wherein the integration frame is coupled to the heat pump.

### Claim 3 (depends on 2)

The HVAC system of claim 2, wherein the integration frame comprises a portal which couples an interior of the ERV or HRV with an air intake of the heat pump.

### Claim 4 (depends on 3)

The HVAC system of claim 3, wherein the heat pump comprises a fresh air output from the ERV or HRV, and wherein the portal of the integration frame couples the fresh air output from the ERV or HRV and of the heat pump with the air intake of the heat pump.

### Claim 5 (depends on 3)

The HVAC system of claim 3, comprising a common duct having a fresh air output of the ERV or HRV and a stale air input to the ERV or HRV.

### Claim 6 (depends on 5)

The HVAC system of claim 5, wherein the common duct comprises a baffle disposed therein and configured to separate a stale airflow in the stale air input from a fresh air flow in the fresh air output.

### Claim 7 (depends on 2)

The HVAC system of claim 2, wherein the integration frame comprises a first arm extending from the ledge and a second arm extending from the ledge, and wherein the ledge, the first arm, and the second arm at least partially form a receptacle configured to receive a flange of the housing of the heat pump.

### Claim 8 (depends on 1)

The HVAC system of claim 1, comprising a motorized damper disposed within the fresh air output and external to the ERV or HRV, wherein the motorized damper is configured to selectively block a flow of fresh air therethrough based on a temperature of the fresh air.

### Claim 9 (depends on 1)

The HVAC system of claim 1, comprising an access door disposed outside the outer boundary of the housing of the heat pump, and configured to facilitate access to the ERV or HRV and to an air intake of the heat pump.

### Claim 10 (depends on 1)

The HVAC system of claim 1, wherein the access panel comprises a hinge and an ERV or HRV door, and wherein the hinge is configured to enable the ERV or HRV door to open away from an interior of the housing of the heat pump.

### Claim 11

A heating, ventilation, and air conditioning (HVAC) system, comprising:
a heat pump having a housing and an air intake formed within the housing;
an energy recovery ventilator (ERV) or heat recovery ventilator (HRV) integrated with the heat pump via an integration frame such that an access panel of the ERV or HRV faces outwardly from the housing of the heat pump; and
a fresh air input to the ERV or HRV, a stale air input to the ERV or HRV, a stale air output from the ERV or HRV, and a fresh air output from the ERV or HRV, wherein a common duct comprises the fresh air output from the ERV or HRV and the stale air input to the ERV or HRV.

### Claim 12 (depends on 11)

The HVAC system of claim 11, wherein the integration frame comprises a portal coupling the common duct with the air intake.

### Claim 13 (depends on 12)

The HVAC system of claim 12, wherein the integration frame comprises a ledge to which the ERV or HRV is attached, a first arm comprising the portal, and a second arm, wherein the ledge, the first arm, and the second arm at least partially form a receptacle which receives a portion of the heat pump to fix the integration frame to the portion of the heat pump.

### Claim 14 (depends on 13)

The HVAC system of claim 13, wherein the portion of the heat pump comprises the air intake or the heat pump.

### Claim 15 (depends on 13)

The HVAC system of claim 13, wherein the first arm, the second arm, the ledge, or any combination thereof is welded to the portion of the heat pump to fix the integration frame to the portion of the heat pump.

### Claim 16 (depends on 11)

The HVAC system of claim 11, wherein the common duct comprises a baffle that is configured to divide a stale air flow of the stale air input from a fresh air flow of the fresh air output.

### Claim 17 (depends on 11)

The HVAC system of claim 11, wherein the access panel of the ERV or HRV is accessible at an outer boundary of the housing.

### Claim 18 (depends on 17)

The HVAC system of claim 17, comprising an access door of the heat pump, wherein the access door is disposed external to the outer boundary of the housing and adjacent to the access panel of the ERV or HRV.

### Claim 19

An assembly configured to integrate with a heat pump, the assembly comprising:
an integration frame comprising a ledge and an arm extending transverse to the ledge, wherein the arm comprises a portal; and
an energy recovery ventilator (ERV) or heat recovery ventilator (HRV) positioned on the ledge of the integration frame, wherein the ERV or HRV comprises a fresh air opening positioned on a face of the ERV or HRV that is disposed adjacent to the arm of the integration frame, and wherein the ledge of the integration frame extends between the face of the ERV or HRV and the arm of the integration frame.

### Claim 20 (depends on 19)

The assembly of claim 19, wherein the ERV or HRV comprises a stale air opening disposed on a side of the ERV or HRV common to the fresh air opening.

### Claim 21 (depends on 19)

The assembly of claim 19, wherein the ERV or HRV is welded to the ledge of the integration frame.

### Claim 22 (depends on 19)

The assembly of claim 19, wherein the integration frame comprises an additional arm extending substantially parallel with the arm and transverse to the ledge, wherein the arm, the additional arm, and the ledge at least partially form a receptacle configured to receive a component of the heat pump to mount the integration frame to the heat pump.

### Claim 23 (depends on 22)

The assembly of claim 22, wherein the component of the heat pump comprises an air intake of the heat pump.

### Claim 24 (depends on 22)

The assembly of claim 22, wherein the arm and the additional arm of the integration frame are configured to be welded the component of the heat pump.
