Lifebreath AH40BHW, AH40DHW Installation, Locating The Unit, Duct Connections, Ducting, Piping

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Installation

The purpose of this manual is to give the contractor guidelines for installing the LIFEBREATH Air Handler. All national and local codes relating to this type of equipment must be followed.

Any ductwork running through unconditioned space must be sealed properly and insulated to prevent heat loss. All local codes must be followed in deter- mining the amount of insulation needed.

Locating The Unit

The Air Handler is designed to be installed vertically, in a conditioned space, where the surrounding temperature does not fall below 50°F (10°C). Attic installations are not recommended. Typically the unit is installed in a mechanical area of the basement, or other partitioned mechanical room, elsewhere in the home.

Sufficient clearance around the unit is required for service of the filter and components. As a rule , this unit should be installed adjacent to the hot water heater. If this is not possible, or if the piping layout is complex, the total head pressure on the pump should be calculated.

Duct Connections

To accommodate various installations, the Air Handler has knockouts for the return air plenum on both sides of the cabinet. Special care and attention should be given to determining which knockouts are to be removed.

Penetrations from sheet metal screws used to fasten the ductwork to the cabinet of the unit should only be placed into the duct flange provided. This is to avoid contact and damage of the heating/air conditioning coils and internal wiring.

Ducting

The duct sizing for the furnace section can be deter- mined using HRAI Residential Air System Design Manual, SMACNA, or any other industry-recognized manuals.

Note: "Combo units" normally deliver air at approx. 110°F (43°C), and therefore may require larger than normal ductwork. When installing the Air Handler as a replacement unit on a retrofit application, always calcu- late the size of duct that is there.

Piping

The hot water piping between the hot water tank and the Air Handler should be new copper type, and should not be treated with chemicals, sealant or any- thing else, that will interfere with the purity of the potable water. Only non-lead, low temperature solder is permitted for sealing copper joints. The copper sol- dered pipe size for each model is:

Model AH40DHW

1/2" nominal

AH60DHW

3/4" nominal

AH40BHW

1/2" nominal

AH60BHW

1/2" nominal

AH80BHW

1/2" nominal

Where possible the length of pipe should not exceed 200' total equivalent length. Any piping running through unconditioned space must be insulated toprevent heat loss, and possible freezing of the line. Stickers indicating direction of flow, (Supply to fur- nace, and Return to water heater) are labeled on the outside of the cabinet. Do not reverse these lines, as this will cause the unit to malfunction.

For piping conventional water heaters or boilers, con- nections to and from the Air Handler to the heater should be made at the point where the pipes leave the heater vertically. A "T" fitting used in each vertical line, with the Air Handler piping connected to the hor- izontal side of this fitting, will work best in avoiding air locks in the circulation pump of the furnace.

*Note: Remove all shipping packaging and discard.

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Contents OPERATION, Sizing and Installation Manual Table of Contents Introduction Important Note Description and PurposeClosed/Open Combo System Combo System Basic PrinciplesCall for Domestic Hot Water and Space Heating Operation Call for Space Heating Only OperationAir System Water PipingManual Valves Drain Valve Shut Off ValvesThrottling Valve Check ValvesCold Expansion TanksWater Anti-Scald ValveAir Handler Temperature Rise Air Handler Return Air TemperatureWater Heater Thermostat Room ThermostatWater System Pressures Design vs. Field ConditionsHead Pressure Flow RateDimensions & Clearances SpecificationsWarranty Model AH40DHWAH60DHW Model AH60DHWAH40BHW Model AH40BHWAH60BHW Model AH60BHWAH80BHW Model AH80BHWLocating The Unit InstallationDuct Connections DuctingWater Heater PlumbingElectrical Air Handler Wiring DiagramOutside Optional DehumidistatFollowing conditions must be met prior to start-up Start-Up ProcedureOperation Optional Circulation Timer ModelsHeating/Cooling Continuous Low Speed Hook UpPump is noisy TroubleshootingLack of heat System Commissioning Water Pump Performance SpecificationsPage Page Page Page Page Page

AH60BHW, AH80BHW, AH40BHW, AH40DHW, AH60DHW specifications

Lifebreath is a recognized leader in energy recovery ventilation systems, and its line of products, including the AH60BHW, AH40BHW, AH40DHW, and AH80BHW models, reflects the company's commitment to delivering high-quality indoor air solutions. These models provide an innovative approach to enhancing indoor air quality while ensuring energy efficiency.

The Lifebreath AH60BHW model is designed to meet the demands of larger spaces, offering a remarkable airflow capacity. This system incorporates advanced energy recovery technology, enabling it to efficiently transfer heat and moisture between incoming and outgoing air streams. As a result, it maintains comfortable indoor conditions regardless of the external climate, ensuring optimal performance year-round.

For medium-sized areas, the AH40BHW and AH40DHW models are excellent choices. Both systems feature similar designs with slight variations in their configurations. The AH40BHW operates using hot water, making it particularly effective in radiant heating applications. In contrast, the AH40DHW relies on direct water heating, providing reliable and consistent heat distribution. These models also boast high-efficiency filtration systems that capture airborne pollutants, contributing to healthier indoor environments.

The Lifebreath AH80BHW is tailored for extensive applications, delivering superior ventilation and energy management. It utilizes a robust heat recovery core that maximizes energy savings and ensures minimal heat loss during the exchange process. Additionally, the AH80BHW's compact design makes it versatile for various installation scenarios, whether in residential settings or commercial spaces.

All models are equipped with user-friendly controls that allow easy adjustments of airflow settings to suit specific requirements. Furthermore, the addition of advanced monitoring technology ensures that users can track system performance and energy usage, optimizing efficiency. With quiet operation characteristics, these systems enhance comfort without disruptive noise.

Overall, Lifebreath's AH series ventilation systems represent a combination of cutting-edge technology and practical design. Their focus on energy recovery, high filtration efficiency, and user-friendly operation makes them an ideal choice for anyone seeking better air quality and comfort in their indoor spaces. Whether for residential or commercial needs, Lifebreath provides reliable solutions that prioritize both health and efficiency.
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