Lifebreath 40DHWDF(T), 60DHW(T), 60VENTAC, 60DHWDF(T) Method a domestic hot water usage for C.1

Page 38

METHOD A - (domestic hot water usage for C.1)

TABLE A 1 (NATURAL GAS AND PROPANE)*

No. of Bathrooms

 

1 to 1.5

 

 

2 to 2.5

 

 

3 to 3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No. of Bedrooms

1**

2

3

2

3

4

5

3

4

 

5

6

 

 

 

 

 

 

 

 

 

 

 

 

 

Nominal Tank Size (USG)

30

40

50

50

50

50

60

50

60

 

60

75

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE A 2 (OIL)*

No. of Bathrooms

 

1 to 1.5

 

 

2 to 2.5

 

 

3 to 3.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No. of Bedrooms

1**

2

3

2

3

4

5

3

4

 

5

6

 

 

 

 

 

 

 

 

 

 

 

 

 

Nominal Tank Size (USG)

32

32

32

32

32

50

50

32

50

 

50

50

 

 

 

 

 

 

 

 

 

 

 

 

 

*Not suitable for luxury or high volume applications

**If laundry is ensuite for a one bedroom dwelling, increase tank size to 40 USG

METHOD B - (domestic hot water usage for C.2)

Activity

Average Volume per usage - USG

X

Times used in Peak Hour

=

Peak hr Usage - USG

 

 

 

 

 

 

 

 

Shower

Hi-Flow (old)

 

Low-Flow (new)

 

 

 

 

 

 

 

 

 

 

 

 

5 min.

15

 

4

X

 

=

 

 

 

 

 

 

 

 

 

10 min.

30

 

7

X

 

=

 

 

 

 

 

 

 

 

 

15 min.

43

 

11

X

 

=

 

 

 

 

 

 

 

 

 

Bath Tub 1/2 full

 

21

X

 

=

 

 

 

 

 

 

 

 

Whirl Pool (60% tub cap.)

from manufacturer

X

 

=

 

 

 

 

 

 

 

 

 

Personal Use

 

3

X

 

=

 

 

 

 

 

 

 

 

 

Shampooing Hair

 

5

X

 

=

 

 

 

 

 

 

 

 

 

Clothes Washer hot/warm

 

40

X

 

=

 

 

 

 

 

 

 

 

 

warm/warm

 

27

X

 

=

 

 

 

 

 

 

 

 

 

warm/cold

 

20

X

 

=

 

 

 

 

 

 

 

 

 

Hand Dish Washing

 

4

X

 

=

 

 

 

 

 

 

 

 

 

Automatic Dish Washer

 

18

X

 

=

 

 

 

 

 

 

 

 

 

Food Preparation

 

6

X

 

=

 

 

 

 

 

 

 

 

 

Other

 

 

 

X

 

=

 

 

 

 

 

 

 

 

 

TOTAL (min. first hr. rating)

 

 

 

 

(transfer to C.2)

=

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents OPERATION, Sizing and Installation Manual Table of Contents Introduction Description and Purpose Combo System Basic Principles Closed/Open Combo SystemAir System Call for Space Heating Only OperationCall for Domestic Hot Water and Space Heating Operation Water PipingManual Valves Throttling Valve Shut Off ValvesDrain Valve Check ValvesAnti-Scald Valve Expansion TanksCold Off Season Circulation ControlsWater Heater Thermostat Air Handler Return Air TemperatureAir Handler Temperature Rise Room ThermostatHead Pressure Design vs. Field ConditionsWater System Pressures Flow RateModel 40DHW Up Flow Dimensions & ClearancesWarranty Filters CaseModel 60DHW Up Flow 60DHWModel 40DHWDF Down Flow 40DHWDFModel 60DHWDF Down Flow 60DHWDFModel 40DHWH Horizontal 40DHWHModel 60DHWH Horizontal 60DHWHHigh CFM Lower Btuh Output 4TONDHW40VENTAC Model 40VENTACCore Filters Case Model 60VENTAC 60VENTACModel 4TONVENTAC 4TONVENTACOption 1 Ventilation Ports Off Left Side Locating The UnitDuct Connections Ducting Option 2 Ventilation Ports Off Right SideHorizontal Version Outside Ducting the Weatherhoods Locating Intake WeatherhoodLocating the Exhaust Weatherhoods Locating WeatherhoodPrior to balancing, ensure that Balancing ProcedurePitot Tube Air Flow Balancing Balancing Collar Instructions Placement of the Pitot TubePitot Tube and Gauge Piping HRV Drain Line DiagramDrain Line Plumbing Water HeaterClean Air Furnace Wiring Diagram ElectricalOptional Dehumidistat Start-Up Procedure Following conditions must be met prior to start-upHeating/Cooling Optional Circulation Timer ModelsOperation VentilationPump is noisy TroubleshootingLack of heat HRV core freezes upCondensation/ice forming inside ventilation ducts During cooling cycle, hot water circulates through the coilWater sits in drain pipes Humidity levels are too lowWater Pump Performance Specifications System CommissioningWorksheet 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.
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