Best Practices for Furnace Replacement
Overview and Design
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Review of Design Calculation Requirements
ASHRAE Guide
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Work Related Standards & Regulations
Compliance with OSHA health & safety regulations
Compliance with NFPA 58 code book
Compliance with IRC 2018 code book
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Building Permits, Codes, Regulations, Laws, and Standards
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Installation
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Removal of Old Heating Equipment
Unless otherwise agreed to, at no additional charge
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Venting Regulations
(ASHRAE 62.2) and (Section 12.6.1.3 of NFPA 54
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Condensate (Drain Pan and Safety Switch) *
Condensate must be piped, trapped, pitched, sized, and insulated per manufacturer's specifications
Condensate must be installed as to prevent freezing and must not terminate over walkways
If condensate pump is installed, it must also have an interlocked detector / cutout switch installed so that outdoor unit is disabled if water level rises and activates detector / switch
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Gas Piping
New gas shut off valve, new ground union, new drip leg according to local codes. Gas leak detection
Gas pipe and connectors to have the appropriate support, hangers, anchors, and gas pipe sealant
Installed in accordance with the latest edition of NFPA 54
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Ductwork Reconnections
Metal ducts and plenums with a cross sectional area of 1.2 sq./ft. or less to be 30 equivalent galvanized sheet gauge or thicker, over 1.2 sq./ft. to be 28 gauge equivalent galvanized sheet gauge or thicker
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Electrical
New electrical connections from service disconnect to furnace
Filtration
Whenever possible a high efficiency air cleaner will be installed at a small additional cost
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Seal Air Leaks at Sheet Metal Joints **
Silicone caulk or mastic shall be used to seal air leaks
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Seal Air Leaks at Filter and Cooling Coil
Silicone caulk or mastic shall be used to seal air leaks
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Programmable thermostat
Thermostat shall be compatible with the equipment it is controlling and ENERGY STAR® certified
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Level Furnace for Correct Condensation Drainage. *
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Start-up and Commissioning
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Control Board/Blower Motor Set-up
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Gas/Oil Pressure
Gas input shall be checked and gas output adjusted to manufacturers specifications
System Airflow
Under steady state condition airflow to be within ± 10% of the airflow required of the system design or manufacturer recommendations ****
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Room Airflow/Balancing ***
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Controls and Accessories
Test humidifiers controls and accessories
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Customer Education
System Operation and Controls  Programing Thermostat  Accessories Operation Leave all Manuals with Customer  Review and register Warranties System Maintenance Requirements  Review Maintenance Customer can/should Perform
* If applicable ** Within 6' of new equipment *** Comfort issues must be discussed before balancing can be performed
**** Existing ductwork may or may not be correctable to accommodate proper airflow, additional charges maybe incurred. Any additional charges will be discussed prior to corrections are made.