HVAC: Handbook of Heating, Ventilation and Air Conditioning PDF file3. AIR CONDITIONING PROCESSES 3–1 Introduction 3–1 Heating and Cooling Process 3–2 Cooling with Dehumidification 3–3 Heating with Humidification 3–3 Adiabatic Mixing of Two Air Streams 3–5 Evaporative Cooling 3–5 Heating and Air Conditioning System Cycles 4. INDOOR AIR QUALITY AND VENTILATION 4–1 Indoor Air Quality 4–1 STEP BY STEP GUIDE BOOK ON PDF fileguide book on no. 1 ground wires black wire attached to brass terminal screw all about outlets page 25 how to wire three-way switches page 30 loaded with simple, easy to follow wiring diagrams common terminal screw (black or copper from/ colored) power source 12-2 wire (with ground) table of contents HVAC Fundamentals - serviceteamtraining PDF file•Typically 24 volts is the operating voltage for HVAC controls. •240 volts is delivered to a _____, there it is stepped down to 24 volts A/C •After that, one common wire is connected to one side of the coil on all of the controls. •The _____determines which wires will complete a circuit while delivering 24 volts to a relay, Best book for a HVAC tech learning electricity and wiring? Best book for a HVAC seasoned technician who is becoming reacquainted with electricity and wiring? Also any great suggestions on some must have books on HVAC for an HVAC apprentice who has been in the field 4-6 months. I know this isn't necessarily the best place to post, but it seems to get a high level of traffic. UNDERSTANDING ELECTRICAL SCHEMATICS Part 1 (Revised PDF fileHVAC/R industry, ranging from 575-V, three-phase power supplies to 24-V control circuit voltagesr supplies may be indicated by solid lines or by dashed or dotted lines, as shown in Figure 4. 4 TB1 BLK BLK RED R G Y1 C TB2 BLK ORN BRN R G Y1 C Field-supplied thermostat Use 18-gauge copper wire Dashed lines indicate field-supplied wiring Basic Electrical Engineering for HVAC Engineers PDF fileExample: A conductor has a resistance of 1.5 ohms and the current flowing on the wire is 5 amperes. The voltage drop along the wire will be the current times the resistance of the conductor or 7.5 volts. Example: A resistance type heating element from an electric water heater operating at 240 volts has a current flow of 14.6 amperes.