Flow Station Balancing | Hearth and Home Technologies HRV200PLUS

HRV200PLUS INSTALLATION INSTRUCTIONS

4.Flow Station Balancing Procedure (see Figure 17)

The following is a method of field balancing an HRV using a flow station. The procedure should be performed with the HRV200PLUS on high speed.

The first step is to operate all mechanical systems on high speed, which have an influence on the ventilation system, i.e. the HRV itself and the forced air furnace or air handler if applicable. This will provide the maximum pressure that the HRV200PLUS will need to overcome, and allow for a more accurate balance of the ventilator.

Note: Always balance the system using the FRESH AIR FIREPLACE EXHAUST duct and the WARMSIDE AIR SUPPLY duct.

Install the flow station 18” downstream of any elbows or bends, and one foot upstream of any elbows or bends. These are recommended distances but the actual installation may limit the amount of straight duct.

The flow station should be connected to a magnehelic gauge or other manometer capable of reading from 0 to 0.25 in. (0 - 62 PA) of water, preferably to three digits of resolution.

Take readings from both exhaust ducts and the warmside air supply. Determine which duct has the highest air flow (highest reading on the gauge). Then damper that air flow back to match the lower reading from the other duct. The flows should now be balanced. See Figure 17. Actual air flow can be determined from the gauge reading. The value read on the gauge is called the velocity pressure. The flow station comes with a chart that will give the air flow velocity based on the velocity pressure indicated by the gauge. This velocity will be in either feet per minute or meters per second.

The accuracy of the air flow reading will be affected by how close to any elbows or bends the readings are taken. See Figure 17.

If the ALTERNATE 5TH PORT is used for alternative exhaust, both the fireplace and exhaust air streams must be balanced individually with the incoming fresh air stream. Individually, each exhaust stream needs to be within 10% of the incoming air stream.

Figure 17 - Flow Station Balancing

4034-102 Rev F

02/04

HRV200PLUS specifications

The Hearth and Home Technologies HRV200PLUS is an advanced heat recovery ventilator (HRV) designed to provide optimal indoor air quality while ensuring energy efficiency. As homes become increasingly airtight due to modern construction techniques, the importance of proper ventilation grows. The HRV200PLUS addresses this need by continuously exchanging stale indoor air with fresh outdoor air, effectively maintaining a healthy living environment.

One of the standout features of the HRV200PLUS is its innovative heat recovery technology. This system captures the heat from the outgoing air and transfers it to the incoming fresh air. As a result, the air being brought into the home is pre-warmed, reducing the demand on heating systems during the colder months. This energy-efficient method helps homeowners save on heating costs while maintaining comfort levels inside the home.

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The unit features adjustable settings that allow users to customize airflow according to their specific needs. With multiple fan speeds, homeowners can choose the most suitable option for their daily activities, ensuring an ideal balance between indoor air quality and energy use. Furthermore, the HRV200PLUS includes a built-in filter system that captures dust, allergens, and other airborne particles, enhancing overall air quality.

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In summary, the Hearth and Home Technologies HRV200PLUS stands out as a premium choice for homeowners seeking a reliable and efficient ventilation solution. Its combination of heat recovery technology, quiet operation, customizable settings, and easy maintenance make it an ideal option for improving indoor air quality while keeping energy costs in check. As the emphasis on healthy living spaces continues to grow, the HRV200PLUS remains a practical investment for modern homes.