The Importance of Combustion Testing

Testo HVAC Distributor Training:

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Agenda

• Why Test?

• What to Test?

• Why Testo?

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Why Test?

• Safety / Liability

• Efficiency

• Appliance Operation / Longevity

• Revenue / Cost Savings / Professionalism

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Why Combustion Test: Safety

• Carbon Monoxide (CO) can be lethal

• Over 500 deaths / year; 15,000 ER visits/ year

• CO originates from incomplete combustion• Reasons for the formation:

• Fuel rich mixture

• Improper venting

• Cooling of the flame temperture

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Carbon Monoxide Facts

• Odorless

• Colorless

• Tasteless

• Mixes well in air

• Poisonous

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Why Test: Efficiency

• Combustion Efficiency = Fuel Savings

1% increase in efficiency nets 1% fuel savings

• Ensures the equipment is operating at optimal efficiency

Saves on both fuel and electricity usage

• Customer expects the system to operate at stated efficiency

There is a difference between combustion efficiency and AFUE

• Customer receives what they expect

Performance Verification

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Why Test: Operation and Longevity

• Heat Exchangers

Cracked HX investigation via O2

- Monitor for changes in O2 when blower starts and stops

- Monitor O2 during ventilation air test as outlined in the Intl. Fuel Gas Code, Appendix D

Nether should affect furnace operation or the O2 reading!

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• CO and Efficiency Tests can be billable services

• Reduce Call Backs from improper installs or trouble-shooting

• Prevent unnecessary warranty disputes

• Professionalism of having the right tools for the job

• Professionalism of being a solutions provider

You are providing safety, comfort, and savings

Without measurements you’re just guessing!

• Differentiate the company and yourself

Offer something your competition doesn’t offer or

Offer it in a superior format

Why Test: Revenue, Cost Reduction, & Professionalism

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What to test…

• Oxygen (%O2): primarily determines complete combustion

• Carbon Dioxide (%CO2): the maximized value relative to efficiency and “ideal combustion”, but does not necessarily indicate complete combustion.

• Carbon Monoxide (CO): lethal gas formed from incomplete combustion

• Excess Air: Needed to show complete combustion, but high values indicate high heat stack loss – poor efficiency.

• Efficiency: represents the total amount of heat available from the fuel minus the losses from the gasses going up the stack

• Temperature (ambient and stack): Needed to determine efficiency

• Draft pressure: Confirms the proper venting of combustibles out of the flue, an appliance has 5 minutes to prove draft under ANSI standards

• Pressure: Confirmation or setting of gas pressures

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The ideal operating range is a setting with excess air.

Incomplete Complete

Excess Fuel Excess Air

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Combustion Diagram – Stoichiometric Chart

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Why Testo…

• Largest manufacturer of Combustion Analyzers

• 50+ years of portable instrumentation development & manufacturing experience

• 100+ R&D Engineers

• German/USA product development

• Innovative new products

• ISO 17025 Quality Standards

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Why Choose a Testo Combustion Analyzer?

• Get the job done rightTesto Analyzers deliver accuracy from the first measurement to the last

Self- check and on-board diagnostics

Built-in NOX filters standard on our CO sensors

Eliminates cross sensitivity errors that yield false high CO readings

• More features for more jobsFull featured analyzers provide all the measurements you need for commissioning and trouble-shooting

30 second start-up

Fast response from high velocity hoses

Pre-calibrated, field replaceable sensors

• Built to last

• Expertise second to none

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The Testo Family of Combustion Analyzers

testo 310:Fully featured

Residential Analyzer

testo 320:Heavy Duty,

Hi Definition Analyzer

testo 330 LL:Extra long life sensors NOX

upgradeable

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testo 310: Fully Featured Residential Analyzer

• O2, CO, Temp (amb & stack), Draft & Pressure

• Efficiency, CO2, Ex Air, CO (amb & air free)

• No Leak, Kink-free hose

• 10 hour lithium battery

• Backlit display

• Wireless printing

• $695: $920 w/printer

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Testo 320 Heavy-duty, Hi-definition Combustion Analyzer

• 8 line, color graphic display

• Ultra-rugged housing

• 500 reading memory with customer site info

• Sensor diagnostics & monitoring

• Self-service sensor kits

• Wireless printing

• Cam-lock, single line probe connection

• Starting at $1,195

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• NOX upgradeable• Sensor over-range protection• 4-year sensor warranty• 500k readings memory• Industrial version to 8,000ppm CO• Intuitive graphic display• Additional probes choices• Starting at $2,495 w/printer

Testo 330 Long Life Combustion Analyzer

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Testo’s 2014 Fall Promotion

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Testo does a lot more than combustion!

• Airflow

Vane, Hot-wire, & Pitot tube Anemometers

• Humidity/ Moisture / IAQ

Meter, Loggers, Multi-function, and Transmitters

• Pressure

Digital manometers and transmitters

• Refrigeration

Digital Manifolds, Vacuum Gauges, and Leak Detectors

• RPM, Light, & Sound

• Temperature

Thermal Cameras, IR, Type K, NTC, and RTD

Thank You,for your time and efforts to promote Testo products