Lifebreath 4TONDHW(T), 60DHW(T), 60VENTAC, 60DHWDF(T), 60DHWH(T) Part D Proving Required Water Flow

Page 39

PART D - PROVING REQUIRED WATER FLOW

D.1 Effective Length Calculation

 

 

Fitting

#

EL

Total EL

________________

_________ x ________ = ___________

________________

_________ x ________ = ___________

________________

_________ x ________ = ___________

________________

_________ x ________ = ___________

________________

_________ x ________ = ___________

________________

_________ x ________ = ___________

________________

_________ x ________ = ___________

Measured (Actual) Length

 

___________

Total Effective Length

 

 

___________

PUMP:

 

 

D.2

Water Flow Rate

________ US GPM

D.3

Max. Head Press. at Water Flow

________ ft of head

 

(from specs)

 

 

D.4

Pressure Drop of Water Coil

5

ft of head

D.5

Available Head Press.

________ ft of head

 

(D.3 - D.4)

 

 

D.6

Total Effective Length

________ eff. ft

 

(from D.1)

 

 

D.7

Head Loss /100 ft

________ per 100 ft

 

(D.5 x 100 ⎟ D.6)

 

 

D.8

Pipe Diameter

________ in.

 

(Table D 2)

 

 

TABLE D 1

EQUIVALENT LENGTHS FOR COPPER PIPE FITTINGS (straight pipe in feet)

 

 

FITTING

 

EQUIVALENT

FITTING

EQUIVALENT

 

 

LENGTH

 

LENGTH

 

 

 

 

 

 

Gate / Ball Valve (open)

1

long sweep 90o elbow

2￿

 

Globe Valve (open)

23

45o elbow

1￿

 

Angle Valve (open)

12

180o close return

6￿

 

Check Valve (open)

6

standard tee (straight through)

2

 

 

 

 

 

 

Balance Valve

18

standard tee (90o turn)

5￿

 

Standard Elbow

3

contraction or enlargement

2

￿

 

 

 

 

 

 

TABLE D 2

HEAD LOSS PER 100 FEET OF EQUIVALENT LENGTH

 

 

 

1/2" inside diameter

5/8" inside diameter

3/4" inside diameter

1" inside diameter

 

 

 

 

 

FLOW

HEAD LOSS

HEAD LOSS

HEAD LOSS

HEAD LOSS

(US GPM)

(FT./100FT)

(FT./100FT)

(FT./100FT)

(FT./100FT.)

 

 

 

 

 

 

1

3

2

1

*

 

1.5

6

4

1

*

 

2

9

7

2

*

 

2.5

14

9

3

*

￿

3

19

13

4

1

￿

 

 

 

 

 

 

3.5

25

17

5

1

￿

 

 

 

 

 

 

4

32

22

6

1

￿

 

 

 

 

 

 

4.5

39

27

7

2

￿

 

 

 

 

 

 

5

*

33

9

2

 

 

 

 

 

 

 

6

*

45

12

3

￿

 

 

 

 

 

 

7

*

*

16

4

￿

 

 

 

 

 

 

8

*

*

21

5

￿

 

 

 

 

 

 

9

*

*

26

6

￿

 

 

 

 

 

 

10

*

*

31

8

 

 

 

 

 

 

 

39

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Page 38 Page 40
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 OutputModel 40VENTAC Core Filters Case40VENTAC 60VENTAC Model 60VENTAC4TONVENTAC Model 4TONVENTACLocating The Unit Duct ConnectionsOption 1 Ventilation Ports Off Left Side Option 2 Ventilation Ports Off Right Side Horizontal VersionDucting Locating Weatherhood Locating Intake WeatherhoodLocating the Exhaust Weatherhoods Outside Ducting the WeatherhoodsBalancing Procedure Pitot Tube Air Flow BalancingPrior to balancing, ensure that Placement of the Pitot Tube Pitot Tube and GaugeBalancing Collar Instructions HRV Drain Line Diagram Drain LinePiping 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.
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