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 Mobile ViewAIR CONDITIONING & HEAT PUMP SYSTEMS AIR CONDITIONER COMPONENT PARTS A/C - HEAT PUMP CONTROLS & SWITCHES A/C - HEAT PUMP CRITICAL DEFECTS A/C DIAGNOSTIC FAQs A/C TYPES, ENERGY SOURCES A/C REFRIGERANTS AIR CONDITIONER BTU CHART SEER RATINGS & OTHER DEFINITIONS OPERATING COST SYSTEM OPERATION OPERATING TEMPERATURES Air Conditioning System Temperatures Instruments Used to Measure A/C Temperatures Procedures for Making Temperature Measurements OPERATING DEFECTS LOST COOLING CAPACITY CHINESE DRYWALL HAZARDS COMBUSTION GASES & PARTICLE HAZARDS CONDENSATE HANDLING, A/C CONDENSATION or SWEATING PIPES, TANKS COMPRESSOR & CONDENSING COIL, A/C AIR FILTERS for HVAC SYSTEMS AIR HANDLER / BLOWER UNITS ANIMAL ALLERGENS / PET DANDER ANIMAL ENTRY POINTS in buildings ANIMAL ODORS IN buildings APPLIANCE EFFICIENCY RATINGS ASBESTOS IDENTIFICATION IN buildings BACKUP HEAT for HEAT PUMPS BLOWER DOORS & AIR INFILTRATION BLOWER FAN CONTINUOUS OPERATION BLOWER FAN OPERATION & TESTING BOOKSTORE - Air Conditioning "How To" Books CAPACITORS for HARD STARTING MOTORS CAPILLARY TUBES CLEANING & Legionella BACTERIA CHINESE DRYWALL HAZARDS COMBUSTION GASES & PARTICLE HAZARDS COMPRESSOR & CONDENSING COIL, A/C CONDENSATE HANDLING, A/C CLEANING & Legionella BACTERIA DUCT SYSTEM & DUCT DEFECTS DUCTS - Asbestos DUST CONTAMINATION FROM HVAC? EDUCATION, HVAC SCHOOLS ELECTRIC MOTOR DIAGNOSTIC GUIDE ELECTRIC MOTOR OVERLOAD RESET SWITCH ELECTRICAL POWER SWITCH FOR HEAT ENERGY SAVINGS in buildings EVAPORATOR COIL or COOLING COIL EVAPORATIVE COOLING SYSTEMS EVAPORATOR COIL or COOLING COIL EXPANSION VALVES, REFRIGERANT FAN, AIR HANDLER BLOWER UNIT FAN AUTO ON Thermostat Switch FAN, COMPRESSOR/CONDENSER UNIT FAN CONVECTOR HEATERS - HYDRONIC COILS FAN LIMIT SWITCH FAN NOISES FURNACES WARM AIR HEATING SYSTEMS GASES, EXPOSURE, TESTING Carbon Dioxide - CO2 Carbon Monoxide - CO METHANE GAS SOURCES GAS MEASUREMENT TOOLS GAUGE, REFRIGERATION PRESSURE TEST HEAT LOSS (or GAIN) in buildings HEAT LOSS (or GAIN) INDICATORS HEAT LOSS R U & K VALUE CALCULATION HEAT PUMPS HEATING SMALL LOADS HOUSEWRAP AIR & VAPOR BARRIERS HUMIDITY LEVEL TARGET INDOOR AIR QUALITY IMPROVEMENT GUIDE INSPECTION CHECKLIST - OUTDOOR UNIT INSPECTION LIMITATIONS LEED GREEN BUILDING CERTIFICATION LOST COOLING CAPACITY MANUALS & PARTS GUIDES - HVAC MOTOR OVERLOAD RESET SWITCH MOLD in AIR HANDLERS & DUCT WORK MOLD INFORMATION CENTER ODORS in AIR HANDLERS & DUCT WORK OPERATING COST OPERATING DEFECTS OPERATING TEMPERATURES NOISY AIR CONDITIONER / HEAT PUMP NOISE / SOUND DIAGNOSIS & CURE PORTABLE ROOM AIR CONDITIONERS PRESSURE READINGS, REFRIGERANT REPAIR GUIDE, AIR CONDITIONERS / HEAT PUMPS REPAIR & DIAGNOSTIC FAQs for A/C REFRIGERANTS RETROFIT SIZING for A/C or HEAT PUMPS SEER RATINGS & OTHER DEFINITIONS SOLAR ENERGY SYSTEMS SPLIT SYSTEM AIR CONDITIONERS & HEAT PUMPS SWAMP COOLERS SYSTEM OPERATION THERMOSTATS, HEATING / COOLING THERMOSTATIC EXPANSION VALVES WATER COOLED AIR CONDITIONERS More Information |
This chapter discusses how to measure input and output air temperatures at air conditioning equipment in order to determine whether or not it is operating properly, as part of checking basic air conditioning system operation and for detection of air conditioning operating defects. Air conditioner temperatures that are too high or too low can indicate specific operating problems on central and portable or window air conditioners. Simple measurements of air temperatures, if made at the right place, can assist in diagnosing what may be wrong and what repairs may be needed for the air conditioner. This document is a portion of our website which describes the inspection of residential air conditioning systems (A/C systems) to inform home buyers, owners, and home inspectors of common cooling system defects. If your air conditioning or heat pump system has lost its cooling capacity or wont' start see LOST COOLING CAPACITY and also REPAIR GUIDE for AIR CONDITIONERS and see How to determine the cooling capacity and see How to determine the cooling capacity of air conditioning equipment if the system seems to be working but is inadequate to cool your building. Contact us to suggest text changes and additions and, if you wish, to receive online listing and credit for that contribution. © Copyright 2012 InspectAPedia.com, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use page top links to major topics or use links at the left of each page to navigate within topics and documents at this website. Green links show where you are in a document series or at this website. List of Types of Instruments Used to Measure Air Conditioning TemperaturesDial thermometers such as the dial face shown in the photograph at the top of this page are inexpensive (typically less than $10.00) and very simple instruments which combine a bimetallic spring, a dial face, and a stainless steel probe which can be inserted into A/C systems at key points (below) or in some cases simply held in an air stream. The thermometer can take a couple of minutes to stabilize, so you should keep it in position until the dial indicator stops changing. Dial thermometers vary in accuracy but can easily be calibrated (using boiling water). Don't choose a dial thermometer whose temperature range is much greater (say 0 degF. to 212 degF.) than the range that you need (say 30 degF. to 100 degF.) since the smaller range thermometer will be more accurate in determining the temperature. Digital thermometers work much like a dial thermometer but include a digital display of temperature (and require a battery). Digital thermometers cost a bit more, typically around $25. to $130. Air flow thermometers are electronic devices similar to a the temperature probes above, but their probe ends in a loop through which air passes to provide a more rapid readout of air temperature. However these devices are not easily inserted into duct work as a larger probe opening will be required. Infrared temperature measurement devices have the feature of being able to measure surface temperatures from a distance but are not used to make direct measurements of air temperatures Questions & Answers regarding this article. Ask a Question or Search InspectAPediaHTML Comment Box is loading comments...
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