5.3003.2 Combustion Analysis of Oil-Fired Appliances

Topic: 
Forced Air
Subtopic: 
System Assessment and Maintenance
Desired Outcome: 

Analysis on critical components and operations completed in accordance with industry and manufacturer specifications to ensure equipment operates as designed, safely, efficiently and is durable.

Note: 
The authority having jurisdiction may require that a licensed professional perform certain tasks outlined in this detailIf new installation or replacement is necessary, ANSI / ACCA 5 QI HVAC Quality Installation Specification will be followed
TitleSpecification(s)Objective(s)
5.3003.2a
Oil system: filter

Filter will be present, clean, and leak free

Ensure oil filter is present and functional

5.3003.2b
Nozzle

Nozzle size, angle, and spray pattern will be correct for design input and within equipment firing rate of the heating system manufacturer. Position of nozzle and electrodes will be in accordance with manufacturer specifications

Ensure equipment is outfitted with the correct nozzle per manufacturer guidelines

5.3003.2c
Fuel pressure

Measurement will be verified in accordance with manufacturer specifications

Ensure correct oil pump pressure for nozzle installed and at OEM’s specified values per ACCA ACCA Air Conditioning Contractors of America, www.acca.org

5.3003.2d
Place appliance in operation

Heating equipment will be placed in operation in accordance with applicable standards and manufacturer specifications when available

Prepare equipment for combustion analysis tests

5.3003.2e
Smoke Test

Smoke test will be conducted before any combustion testing is completed

Smoke spot reading will be in accordance with burner manufacturer specifications

If smoke test is more than actionable levels, specify a clean and tune

Determine whether equipment is operating within acceptable range according to smoke test and call for action if needed

5.3003.2f
Steady state efficiency ( SSE SSE Steady state efficiency )

Measurement will be verified in accordance with manufacturer specifications

Determine whether steady state efficiency is within manufacturer range

5.3003.2g
Net stack temperature

Net stack temperature will be measured and verified in accordance with manufacturer specifications

Determine whether net stack temperature is within manufacturer’s recommended range

5.3003.2h
Carbon dioxide (CO2) and oxygen (O2)

Measurement will be verified in accordance with manufacturer specifications

Verify combustion performance of equipment is within manufacturer recommended range based on CO2 and O2 readings

5.3003.2i
Excess combustion air

Excess combustion air will be calculated and shown to be in accordance with manufacturer specifications

Verify combustion performance of equipment is within manufacturer recommended range based on excess combustion air readings

5.3003.2j
CO CO Carbon monoxide in flue gas

Measure CO CO Carbon monoxide and recommend actions to ensure that CO in the undiluted flue gas will be less than 400 ppm air-free

Ensure CO CO Carbon monoxide in undiluted flue gas is less than 400 ppm air-free

5.3003.2k
Testing/inspection holes

All testing and inspection holes will be sealed with approved materials

Ensure equipment:

  • Operates as designed
  • Operates safely
  • Operates efficiently
  • Is durable
TitleSpecification(s)Objective(s)
5.3003.2a
Oil system: filter

Filter will be present, clean, and leak free

Ensure oil filter is present and functional

5.3003.2b
Nozzle

Nozzle size, angle, and spray pattern will be correct for design input and within equipment firing rate of the heating system manufacturer. Position of nozzle and electrodes will be in accordance with manufacturer specifications

Ensure equipment is outfitted with the correct nozzle per manufacturer guidelines

5.3003.2c
Fuel pressure

Measurement will be verified in accordance with manufacturer specifications

Ensure correct oil pump pressure for nozzle installed and at OEM’s specified values per ACCA ACCA Air Conditioning Contractors of America, www.acca.org

5.3003.2d
Place appliance in operation

Heating equipment will be placed in operation in accordance with applicable standards and manufacturer specifications when available

Prepare equipment for combustion analysis tests

5.3003.2e
Smoke Test

Smoke test will be conducted before any combustion testing is completed

Smoke spot reading will be in accordance with burner manufacturer specifications

If smoke test is more than actionable levels, specify a clean and tune

Determine whether equipment is operating within acceptable range according to smoke test and call for action if needed

5.3003.2f
Steady state efficiency ( SSE SSE Steady state efficiency )

Measurement will be verified in accordance with manufacturer specifications

Determine whether steady state efficiency is within manufacturer range

5.3003.2g
Net stack temperature

Net stack temperature will be measured and verified in accordance with manufacturer specifications

Determine whether net stack temperature is within manufacturer’s recommended range

5.3003.2h
Carbon dioxide (CO2) and oxygen (O2)

Measurement will be verified in accordance with manufacturer specifications

Verify combustion performance of equipment is within manufacturer recommended range based on CO2 and O2 readings

5.3003.2i
Excess combustion air

Excess combustion air will be calculated and shown to be in accordance with manufacturer specifications

Verify combustion performance of equipment is within manufacturer recommended range based on excess combustion air readings

5.3003.2j
CO CO Carbon monoxide in flue gas

Measure CO CO Carbon monoxide and recommend actions to ensure that CO in the undiluted flue gas will be less than 400 ppm air-free

Ensure CO CO Carbon monoxide in undiluted flue gas is less than 400 ppm air-free

5.3003.2k
Testing/inspection holes

All testing and inspection holes will be sealed with approved materials

Ensure equipment:

  • Operates as designed
  • Operates safely
  • Operates efficiently
  • Is durable