Lifebreath 40DHW(T), 60DHW(T), 60VENTAC, 60DHWDF(T), 60DHWH(T), 40VENTAC, 4TONVENTAC Manual Valves

Page 7

Manual Valves

There are a number of manual valves required for the system to operate properly and safely. These valves are used as shut off valves, drain valves and throttling valves. They can be globe, gate, ball or balancing type valves.

The globe valve can be used as a shut off, drain or throttling valve. Even in the open position, the valve is fairly restrictive to flow. It has a much greater equivalent length (resistance) than the other types of valves.

The gate valve can be used as a shut off or drain valve. When in the open position, there is very little resistance to flow. Gate valves have a greater susceptibility to chatter (noise) and

malfunction with age. Gate valves tend to be less expensive than the other type of valves.

The ball valve can be used as a shut off or drain valve but not a throttling (balancing) valve. When in the open position, a full bore ball valve has very little resistance to flow, and these valves tend to be both the least expensive and the least susceptible to seizing over time. Do not use reduced bore ball valves as they are very restrictive to water flow.

The balancing valve can be used as a throttling valve. It can make small flow changes easily and has lower resistance than a globe valve. This valve will be considerable more expensive.

Balance Valve

Ball Valve

Globe Valve

Gate Valve

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents OPERATION, Sizing and Installation Manual Table of Contents Introduction Description and Purpose Closed/Open Combo System Combo System Basic PrinciplesWater Piping Call for Space Heating Only OperationCall for Domestic Hot Water and Space Heating Operation Air SystemManual Valves Check Valves Shut Off ValvesDrain Valve Throttling ValveOff Season Circulation Controls Expansion TanksCold Anti-Scald ValveRoom Thermostat Air Handler Return Air TemperatureAir Handler Temperature Rise Water Heater ThermostatFlow Rate Design vs. Field ConditionsWater System Pressures Head PressureFilters Case Dimensions & ClearancesWarranty Model 40DHW Up Flow60DHW Model 60DHW Up Flow40DHWDF Model 40DHWDF Down Flow60DHWDF Model 60DHWDF Down Flow40DHWH Model 40DHWH Horizontal60DHWH Model 60DHWH Horizontal4TONDHW High CFM Lower Btuh OutputCore Filters Case Model 40VENTAC40VENTAC 60VENTAC Model 60VENTAC4TONVENTAC Model 4TONVENTACDuct Connections Locating The UnitOption 1 Ventilation Ports Off Left Side Horizontal Version Option 2 Ventilation Ports Off Right SideDucting Locating Weatherhood Locating Intake WeatherhoodLocating the Exhaust Weatherhoods Outside Ducting the WeatherhoodsPitot Tube Air Flow Balancing Balancing ProcedurePrior to balancing, ensure that Pitot Tube and Gauge Placement of the Pitot TubeBalancing Collar Instructions Drain Line HRV Drain Line DiagramPiping Water Heater PlumbingElectrical Clean Air Furnace Wiring DiagramOptional Dehumidistat Following conditions must be met prior to start-up Start-Up ProcedureVentilation Optional Circulation Timer ModelsOperation Heating/CoolingHRV core freezes up TroubleshootingLack of heat Pump is noisyHumidity levels are too low During cooling cycle, hot water circulates through the coilWater sits in drain pipes Condensation/ice forming inside ventilation ductsSystem Commissioning Water Pump Performance SpecificationsWorksheet for Integrated Combo System Design Part a Design Load Specifications Method a domestic hot water usage for C.1 Part D Proving Required Water Flow Commissioning of Integrated Combo System HRV Balancing McCormick Blvd. London, Ontario N5W 4C8

40DHWDF(T), 4TONVENTAC, 60VENTAC, 40VENTAC, 60DHWH(T) specifications

Lifebreath is a leading manufacturer specializing in indoor air quality solutions, with their series of heat recovery ventilators tailored for both residential and commercial applications. Among their advanced systems, the Lifebreath 60DHW(T), 60DHWDF(T), 4TONVENTAC, 40DHW(T), and 40DHWDF(T) provide exceptional ventilation performance alongside energy efficiency.

The Lifebreath 60DHW(T) and 60DHWDF(T) models are designed for larger spaces, featuring an impressive air flow rate of 60 CFM, making them ideal for homes and businesses that require a robust ventilation solution. These units incorporate a state-of-the-art heat exchange core, allowing for the transfer of heat from outgoing stale air to incoming fresh air, thereby minimizing energy loss.

The significant advantage of Lifebreath's 60DHW series lies in its dual-fan operation, which delivers balanced air flow while maintaining a comfortable indoor climate. Both models are equipped with advanced filtration systems, providing effective capture of airborne pollutants and allergens, promoting optimal air quality.

Moving to the Lifebreath 4TONVENTAC, this unit offers a unique combination of ventilation and cooling functionalities, making it suitable for environments with varying weather conditions. With a 4-ton capacity, it is perfect for larger commercial establishments. The 4TONVENTAC employs innovative technology for efficient energy use, incorporating variable speed drives to adapt to changing ventilation demands, ensuring maximum energy conservation and performance.

The Lifebreath 40DHW(T) and 40DHWDF(T) are perfect for smaller residential applications. With an airflow capacity of 40 CFM, these units maintain comfort without over-ventilating. Similar to the 60DHW models, they feature the same exceptional heat exchange technology to promote energy savings. The 40DHW series also includes user-friendly controls and monitoring features, enabling homeowners to adjust settings for optimal performance based on their specific needs.

A common characteristic across all these models is Lifebreath’s commitment to durability and reliability. Made from high-quality materials, they are built to withstand varying environmental conditions while providing long-lasting service. With easy installation and low maintenance requirements, these heat recovery ventilators prove to be a smart investment for users looking to improve their indoor air quality while reducing energy costs.
Top Page Image Contents