powerpoint ® presentation chapter 8 hydronic system balancing and building commissioning testing,...

PowerPoint® PresentationPowerPoint® Presentation

Chapter 8Chapter 8Hydronic System Balancing and

Building CommissioningHydronic System Balancing and

Building Commissioning

Testing, Adjusting, and Balancing of Chilled and Hot Water Hydronic Systems • Commissioning of Commercial Buildings’

HVAC Systems

Testing, Adjusting, and Balancing of Chilled and Hot Water Hydronic Systems • Commissioning of Commercial Buildings’

HVAC Systems

PowerPoint® PresentationPowerPoint® Presentation

Chapter 8Chapter 8Hydronic System Balancing and

Building CommissioningHydronic System Balancing and

Building Commissioning

Testing, Adjusting, and Balancing of Chilled and Hot Water Hydronic Systems • Commissioning of Commercial Buildings’

HVAC Systems

Testing, Adjusting, and Balancing of Chilled and Hot Water Hydronic Systems • Commissioning of Commercial Buildings’

HVAC Systems

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Circulation pump testing is required when a new system is installed.

Circulation pump testing is required when a new system is installed.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Variable-frequency drives need to be tested and adjusted to fit the correct operating requirements.Variable-frequency drives need to be tested and adjusted to fit the correct operating requirements.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Electronic tachometers measure the speed of a moving object.Electronic tachometers measure the speed of a moving object.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

The speed of a rotating shaft can be measured by an electronic tachometer.

The speed of a rotating shaft can be measured by an electronic tachometer.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Digital multimeters record measurements of electrical properties.

Digital multimeters record measurements of electrical properties.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Digital multimeters are relatively easy to use to measure the line voltage of an variable-frequency drive.

Digital multimeters are relatively easy to use to measure the line voltage of an variable-frequency drive.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Clamp-on ammeters measure current in a circuit.

Clamp-on ammeters measure current in a circuit.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

The procedure for using clamp-on ammeters to measure current involves several steps.

The procedure for using clamp-on ammeters to measure current involves several steps.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Hydronic manometers measure water pressure to help balance a hydronic system.

Hydronic manometers measure water pressure to help balance a hydronic system.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Hydronic manometer procedures are used to check pump performance and verify terminal flow.

Hydronic manometer procedures are used to check pump performance and verify terminal flow.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Mechanical gauges measure pressure and are available in a variety of ranges.

Mechanical gauges measure pressure and are available in a variety of ranges.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

Flow-balancing valves often have a manual valve with an indicator to show how much the valve is open.

Flow-balancing valves often have a manual valve with an indicator to show how much the valve is open.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

The flow rate through balancing valves can be determined using charts and graphs.

The flow rate through balancing valves can be determined using charts and graphs.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

If the gallons per minute of flow and the temperature differential of the water in a coil are known, the amount of British thermal units removed can be determined.

If the gallons per minute of flow and the temperature differential of the water in a coil are known, the amount of British thermal units removed can be determined.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

The water flow rate through a valve can be determined if the flow coefficient and pressure drop are known.

The water flow rate through a valve can be determined if the flow coefficient and pressure drop are known.

Chapter 8–Hydronic System BalancingChapter 8–Hydronic System Balancingand Building Commissioningand Building Commissioning

While building commissioning can be expensive, often the cost is less than 1% of the total construction costs.

While building commissioning can be expensive, often the cost is less than 1% of the total construction costs.