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HVAC How-To

Free HVAC how-to articles from the Manuall Trade Library. No account needed; read it, share it, put it to work.

60 articles

How-to Guide ServiceDelivery

How to Wire a Two-Stage Furnace and Two-Stage Condenser

HVAC

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How to Wire a Heat Pump With an Air Handler and Heat Strips

HVAC

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How to Test Compressor Windings and Ground

HVAC

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How to Test an A2L Leak Sensor and Mitigation Sequence

HVAC

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How to Set Up and Test Heat Pump Defrost on an Install

HVAC

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How to Set Gas Manifold Pressure on a Furnace

HVAC

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How to Set Blower Speed Taps for Cooling and Heating Airflow

HVAC

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How to Run a Total Duct Leakage Test at 25 Pascals

HVAC

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How to Run a Standing Nitrogen Pressure Test on a New Line Set

HVAC

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How to Run a Condensate Line at Slope to an Approved Termination

HVAC

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How to Replace a Liquid Line Filter Drier

HVAC

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How to Recover a Large Charge by Push-Pull

HVAC

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How to Pump Down a Split System Into the Condenser

HVAC

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How to Proportionally Balance Branch Duct Runs

HVAC

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How to Measure Total External Static Pressure on a Furnace

HVAC

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How to Measure Temperature Rise on a Gas Furnace

HVAC

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How to Measure Delivered Cooling Capacity With Wet Bulb and Airflow

HVAC

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How to Make and Torque a Flare on a Mini-Split Line Set

HVAC

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How to Install and Insulate a New Line Set

HVAC

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How to Install a Takeoff and Flex Branch to a New Register

HVAC

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How to Install a Secondary Drain Pan and Float Switch

HVAC

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How to Estimate Blower Airflow From Static and the Fan Table

HVAC

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How to Convert a Furnace From Natural Gas to Propane

HVAC

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How to Clock a Gas Meter to Check Furnace Input

HVAC

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How to Check Heat Pump Heating Performance in Cold Weather

HVAC

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How to Check an Existing Line Set Before Reusing It

HVAC

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How to Charge a TXV System by Subcooling

HVAC

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How to Charge a Fixed Orifice System by Target Superheat

HVAC

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How to Calculate and Add Charge for a Long Line Set

HVAC

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How to Build a Condensate Trap for a Draw-Through Coil

HVAC