Unit 5

Tools

Volt-Ohm-Milliammeter (VOM)

multimeter that measures voltage, resistance, and current (used for diagnosing electrical components in hvac systems)

vacuum pump

a type of pump that removes air and moisture from a system (essential for preparing refrigeration systems before charging)

U-Tube Water Manometer

A pressure gauge using a U-shaped water column (measures gas pressure by comparing liquid column heights) 

Tubing Pinch Off Tool 

A clamp to close off soft copper tubing (used to isolate parts of a system or during repairs)

Tubing Piercing Valve

A valve that punctures tubing to access refrigerant (provides service port on a system without one)

Tube Cutter 

A tool to cut tubing evenly (ensures a square, burr-free cut for proper fittings)

Tube Brushes

small brushes used to clean the inside of tubing (used to ensure clean surfaces for soldering)

Tube Benders

tools to bend tubing without kinking (allows clean, accurate bends in copper, aluminum tubing)

Thermometer

measures temperature (used to monitor air, refrigerant, or component temperatures)

Swaging Tool

expands tubing ends to join without fittings (allows tight connections by enlarging one end to fit another tube)

Stapling Tackers

tools that drive staples into surfaces (useful for securing insulation, ductwork, or wiring)

Sling Psychrometer

a tool with two thermometers to measure relative humidity (used by whirling to compare wet-bulb and dry-bulb temperatures)

Refrigerant Recovery Station

a machine that recovers and stores refrigerant from systems (used to comply with environmental regulations during repairs or disposal)

Plastic Tubing Shear 

A cutter designed for plastic tubing (ensures clean, straight cuts without crushing soft tubing)

Oxyacetylene Unit

used for welding or cutting and uses oxygen and acetylene gases (used in hvac for soldering copper lines and cutting metals)

Nylon Strap Fastener

a tool to tighten and secure nylon strapping (used to bundle or secure components like ducts or cables)

Megohmmeter 

a device that tests insulation resistance with high voltage (detects insulation breakdown in electrical equipment or wiring)

Inspection Mirror

a mirror used to see hard to reach places (helps inspect behind or under components without disassembly)

Inner/Outer Reamer

a tool to smooth the inside/outside or cut tubing (removes burrs to ensure clean connections to prevent flow restrictions)

Inclines Water Manometer

a pressure measuring device that uses a tilted water column (provides sensitive, low-pressure measurements in applications like gas furnaces)

Guage Manifold 

a tool with gauges and valves to measure system pressures (used for charging, evacuating, and diagnosing hvac systems)

Flaring Tool

a tool that forms a flared end on tubing (prepares copper or aluminum tubing ends for leak-free connections)

Flare Nut Wrench

a wrench designed to grip flare fittings securely (prevents rounding off nuts on refrigerant lines during installation or service)

Fin Straighteners 

tool used to straighten ben fins on coils (improve airflow and efficiency in condenser or evaporator coils) 

Electronic Vacuum Gauge

a device that measures vacuum pressure in microns (used when evacuating refrigeration systems to ensure deep vacuum levels are reached)

Electronic Combustion Analyzer

a tools that analyzes gases produced by combustion (helps evaluate burner efficiency and safety by measuring Co2, O2 and other gases)

Electronic Charging Scale

a digital scale for weighting refrigerant (ensures precise refrigerant charge during service or installation)

Draft Gauge 

an instrument that measures air pressure differences (often used to check chimney or flue draft in heating systems)

Compressor Oil Charging Pump

a pump used to add oil to a compressor (allows technicians to charge oil operating or non-operating compressors without disassembly)

Clamp On Ammeter

a device that measures electrical current without disconnecting wires (clamps around a conductor to read current flow safely and easily)

Charging Cylinder 

a calibrated container used to measure and transfer refrigerant (helps in accurately charging hvac system with the correct amount of refrigerant by volume or weight)