Lifebreath 200ERV User Manual download pdf (Page 22)

Simplified Installation

Option 1

(Return/Return Method)

Note: Option 1 is the preferred / recommended method

when doing a simplified installation.

Example diagram only - duct configuration

may change depending on model

*Unit is normally balanced on HIGH speed 

with furnace blower ON.

RETURN AIR

DIRECT CONNECTION of both the HRV/ERV SUPPLY AIR STREAM and 

EXHAUST AIR STREAM to the FURNACE COLD AIR RETURN

40" (1m) MINIMUM

→

Outdoors

Cool Air

Return

NOTES:

1. Furnace blower may be required to operate when ventilation from HRV/ERV is required. 

The furnace should be set to run continuously or interlocked with HRV/ERV. 

2. A minimum separation of 40 inches (1 m) is required between the two direct connections.

3. The exhaust air connection should be upstream of the supply air connection to prevent 

exhausting any fresh air.

4. Weatherhood arrangement is for drawing purposes only. Six feet (2 m) minimum separation required.

Eighteen inches (460 mm) above grade minimum.

5. Due to the differences in pressure between the HRV/ERV and the equipment it is being

connected to, the HRV/ERV's airflow must be confirmed on site, using the balancing

procedure found in the installation manual.

3’ min.

recommended

Forced Air

Furnace

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Lifebreath 200ERV User Manual Page 22