Dehumidistat Operation HRV only | Lifebreath 120ERV, RNC120F

Dehumidistat Operation (HRV only)

The optional HRV remote controls include a dehumidistat which controls humidity levels during the heating season. The control has a selector knob with set points ranging from 20% to 80% relative humidity (RH). Most people are comfortable when indoor relative humidity levels are in a range from 30 to 45%.

The dehumidistat switches the ventilator to high speed when the moisture level in the building exceeds the desired setpoint. The dehumidistat switches the HRV back to low speed ventilation when the humidity has been reduced below the setpoint. The dehumidistat should only be used during the heating season. It must be set to OFF position throughout the rest of the year.

Defrost Operation

The fan defrost HRV is equipped with an electronically controlled fan defrost system to remove frost that collects on the warm air side of the aluminum heat transfer sur- faces of the heat exchanger core. When the outside air temperature drops below 27°F (3°C), defrost is activated which provides for an automatic defrost cycle. During the automatic defrost cycle, the fresh air supply is shut off while the exhaust fan continues to operate. This allows the warm inside air to flow through the heat exchanger core melting frost accumulation. After the defrost period, the

fresh air supply fan returns to the normal speed and fresh outside air continues to be drawn into the building. Water from the melted frost collects in the bottom of the drip pans and drains out through the bottom drain connections. The defrost cycle repeats automatically until the air tem- perature rises above 27°F (-3°C).

Defrost Cycle DIP Switch Settings

Defrost DIP Switch Settings (located on the circuit board) can be adjusted to increase the unit’s run (ventilation) time. The three minute defrost time cannot change.

Factory Setting			Option 1*			Option 2*
3 minute defrost time		3 minute defrost time			3 minute defrost time
17 minute run time		25 minute run time			30 minute run time
	ON			ON			ON

REMOTE

DFR2

DFR3

REMOTE

DFR2

OFF DFR3

	HS
	REMOTE
	DFR2
ON	DFR3

OFF

SW1

*Lengthening the run time may result in ice build-up on the core.

120ERV, RNC120F specifications

The Lifebreath RNC120F,120ERV is a highly efficient energy recovery ventilator designed to promote better indoor air quality while minimizing energy consumption. This model is ideal for a variety of residential applications, providing a cost-effective solution for ensuring a continual supply of fresh outdoor air into living spaces. The RNC120F,120ERV features advanced technologies that allow it to operate efficiently, making it a favorable choice among homeowners and building professionals alike.

One of the standout features of the RNC120F,120ERV is its energy recovery capability. This system can recover up to 85% of the energy from the outgoing stale air and transfer it to the incoming fresh air, which significantly reduces heating and cooling costs. This is particularly advantageous in regions with extreme seasonal climates, as it minimizes the demand on HVAC systems.

The unit is equipped with a high-efficiency ECM motor that operates quietly and consumes less energy compared to traditional motors. This technology not only contributes to lower energy bills but also ensures a more comfortable and peaceful indoor environment. The RNC120F,120ERV has adjustable airflow settings, allowing users to customize the level of ventilation according to their specific needs.

Another important characteristic of the Lifebreath RNC120F,120ERV is its compact design. It can easily be installed in tight spaces, making it suitable for a variety of home layouts and sizes. This versatility allows homeowners to benefit from improved air quality without sacrificing valuable living space.

The system also features a built-in filter that helps remove airborne particles, allergens, and pollutants, enhancing the overall air quality in the home. Regular maintenance and replacement of the filters are simple, ensuring that the unit continues to perform at its best.

In addition to its functional attributes, the RNC120F,120ERV is designed with durability in mind. It is constructed from high-quality materials that can withstand the rigors of continuous operation in various environments. Furthermore, the unit meets strict energy efficiency standards, making it a responsible choice for environmentally conscious consumers.

Overall, the Lifebreath RNC120F,120ERV combines energy efficiency, advanced technology, and ease of use, making it an excellent investment for anyone looking to improve their indoor air quality while keeping energy costs low.