Universal R-410A Safety & Training

Electrical Theory and Application for HVACR

Heat Pump Operation, Installation, Service

Refrigeration Systems and Applications: Edition 3

Quick Quide to the Refrigeration Cycle, Refrigerants and Components: A Supplement to the EPA Section 608 Certification Exam Preparatory Manual

Water Heaters

System Recovery & Evacuation

Air Conditioning and Refrigeration Repair

System Performance: Maximizing Energy Efficiency in Heating and Cooling

Refrigerant Charging and Service Procedures for Air Conditioning

Practical HVAC

Gas Heating: Furnaces, Boilers, Controls, Components

Section 608 Certification Exam Preparatory Manual - 9th Edition V2

Mechanic Refrigeration and Air Conditioner: Question Answers MCQ

ITI Mechanic Refrigeration and Air Conditioner

HVAC Problems & Solutions

Air Conditioning: A Practical Introduction, Edition 3

Inverter Mini Split Operation and Service Procedures

Refrigeration and Air-Conditioning: Edition 4