Lifebreath AH80BHW, AH40DHW, AH60DHW Shut Off Valves, Drain Valve, Throttling Valve, Check Valves

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Shut Off Valves

There are 3 shut off valves required for an integrated combo system as follows:

•One valve (a) on the cold water side of the water heater upstream of the heating loop con- nection. This valve has the ability to isolate the hot water (domestic and space heating) from the household cold water supply. This valve is required on every waterheater whether or not the water heater is used for space heating.

•One valve (b) on the hot water supply side of the heating loop, downstream of its connection to the domestic water.

•One valve (c) on the return side of the heating loop upstream of its connection to the domes- tic cold water.

The two valves in the heating loop allow the heating loop to be isolated for service or repair.

(a) Supply

(b)

(c) Return

H C

SHUT OFF VALVES

Drain Valve

system. The drain valve should be near the low point of the return piping system upstream of the shut off valve and is preferred to be near the water heater.

Throttling Valve

The throttling (balancing) valve is used to reduce the water flow rate and thereby increase the water temperature drop. This is done to ensure proper activation of the water heater thermostat. This valve should be a globe or balancing valve.

Check Valves

A spring loaded check valve is required in the heating loop to help minimize thermo-siphoning of hot water throughout the heating loop when heating is not called for and cold water back flowing through the heating loop when domestic hot water is used. The valve will have a water flow direction arrow marked on it’s exterior surface and must be installed with that arrow pointing downstream.

CHECK VALVE

A drain valve is required to allow the heating loop to be drained for service or repair and to remove air from the heating loop when commissioning a

*Check valves should always be installed in a vertical rise with the flow of water shown.

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Contents OPERATION, Sizing and Installation Manual Table of Contents Introduction Description and Purpose Important NoteCombo System Basic Principles Closed/Open Combo SystemCall for Space Heating Only Operation Call for Domestic Hot Water and Space Heating OperationAir System Water PipingManual Valves Shut Off Valves Drain ValveThrottling Valve Check ValvesExpansion Tanks ColdWater Anti-Scald ValveAir Handler Return Air Temperature Air Handler Temperature RiseWater Heater Thermostat Room ThermostatDesign vs. Field Conditions Water System PressuresHead Pressure Flow RateSpecifications Dimensions & ClearancesWarranty Model AH40DHWModel AH60DHW AH60DHWModel AH40BHW AH40BHWModel AH60BHW AH60BHWModel AH80BHW AH80BHWInstallation Locating The UnitDuct Connections DuctingPlumbing Water HeaterAir Handler Wiring Diagram ElectricalOptional Dehumidistat OutsideStart-Up Procedure Following conditions must be met prior to start-upOptional Circulation Timer Models OperationHeating/Cooling Continuous Low Speed Hook UpPump is noisy TroubleshootingLack of heat Water Pump Performance Specifications System CommissioningPage 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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