Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC) Basics

Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC)

  1.  HVAC system identification. Learn to identify differences between gas, oil, and electric furnaces. Heat pumps VS air conditioning split systems. Mini splits, boilers, and more. We will touch on their uses, proper applications, and benefits of each system.
  2. HVAC Specialty tools and their uses. Learn about some of the latest tools used in the field today, as well as old favorites. This section will be pretty hands on, and will get have the students using some of the tools just like they would be used in the field.
  3. Refrigeration Certification overview. In this section we will review what’s involved in getting certified, the different levels, and how it can advance your career in the industry. Students will see the steps involved in recovering refrigerant from a system and how to document the work performed.
  4. Residential HVAC construction. This will be a deep dive into what it’s like starting with a company as a helper and working up to a project manager. All aspects of the climb and tips to get you to the top faster than you ever expected!
  1. Duct Work Basics. Learn how a duct system works and the different material used. We will touch on duct sizing and common problem with air flow. In this section the students will assemble a section of fiberglass duct board, install a takeoff, and connect a flexible duct line.
  2. HVAC Piping 101. We will discuss all types of commonly used HVAC piping and their uses. Students will assemble a simple black iron gas line, see how a pipe threader works, use CSST, PVC, and more. The students will also see how to properly prep copper refrigerant lines and see how systems are connected via soldering and brazing.
  3. Natural and propane gas furnace overview. In this section we will talk about all the components and parts commonly found in this furnace type. Review the sequence of operation, maintenance techniques, and installation practices.
  4. Heat Pump and Air Conditioning overview. This will primarily focus on installation best practices, easy part replacements for homeowners and maintenance professionals, and cleaning techniques.
  5. Mini Split 101. With this heating and cooling type gaining i popularity, especially with novices we will review all the pros and cons of these units and discuss best practices for installation and proper application.
  6. Thermostats and indoor air quality. This section we will learn all about the low voltage “aka” the control side of systems. Students will get to try their hand at wiring a thermostat and going through proper set up. Smart thermostats will be discussed in depth and we will touch on multiple indoor air quality products such as humidifiers, UV lights, air filters, and more.

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Course Info

Hours: 30 hours

Times: 6 PM – 9 PM

Days: Monday & Wednesday

Dates: Jan. 29 – Mar. 4, 2024   2024-2025 Classes Coming Soon! (but accepting applications now)

Cost: $700

Schedule – 2024-2025 Classes Coming Soon!

Jan. 29, 31 Feb. 5, 7, 12, 14, 21, 26 ,28, Mar. 4, 2024

If you are interested in this class, please submit an Online Application here.

A Certificate of Completion for the course will only be issued to participants completing a minimum of 80% of the course.


Registration and fee deadline is one week prior to the first class. Individuals are not considered registered with DCTS until payment is made and a completed application is submitted to the Adult & Continuing Education Office. Please call the office at 717-652-3170 ext. 7902 to make your payment.

Space is limited so sign up early to confirm your seat.

Adult learners must be able to understand, speak, read, and write the English language.

Acceptable Forms of Payment

Personal Pay: Credit/Debit (Visa, MasterCard, American Express), Money Order, Cash

Company Pay: Company credit card or Company check

•Checks should be made out to DCTS ADULT & CONTINUING EDUCATION and mailed to 6001 Locust Lane, Harrisburg, PA 17109 or call (717) 652-3170 ext. 7902 to make payment by credit card. No refunds will be issued after the start of class.


NO REFUNDS will be offered after the start of class!



Due to safety considerations, no one under the influence of drugs or alcohol will be permitted to attend class or be on the premises of Dauphin County Technical School property. It is the discretion of the instructor in making any and all determination and identification of individuals under the influence of drugs or alcohol. This may include prescription drugs if, in the opinion of the instructor the drugs impair the judgment of the participant. Copies of the DCTS Use of Tobacco Policy #222 and Drug and Alcohol Policy #227 are listed below.

*Your signature is required on the registration form to indicate that you have read, understand, and will abide by these policies.

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The Joint Operating Committee recognizes that tobacco, nicotine, and nicotine delivery products present a health and safety hazard that can have serious consequences for both users and nonusers and the safety and environment of the school. For purposes of this policy, tobacco includes a lighted or unlighted cigarette, cigar, cigarillo, little cigar, pipe, or other smoking product or material and smokeless tobacco in any form including chewing tobacco, snuff, dip, or dissolvable tobacco pieces.[1] For purposes of this policy, nicotine shall mean a product that contains or consists of nicotine in a form that can be ingested by chewing, smoking, inhaling, or through other means. For purposes of this policy, a nicotine delivery product shall mean a product or device used, intended for use, or designed for the purpose of ingesting nicotine or another substance. This definition includes, but is not limited to, any device or associated product used for what is commonly referred to as vaping or juuling.
It is the goal of the Dauphin County Technical School to maintain a drug-free and alcohol-free school environment. In order to further this goal, the Alcohol, Drugs, and Controlled Substances Policy No. 227. A student shall not possess, use, transmit, deliver, sell or be under the influence of any controlled substance. Controlled substances shall be defined as A. All dangerous controlled substances prohibited by law within the meaning of the Controlled Substance, Drug-Device, and Cosmetic Act as amended. B. All over-the-counter medications. C. All alcoholic beverages. D. Any anabolic steroids. E. Any synthetic compound, or any herbal substance sold as an incense, bath salts, or smoking material that mimics the effects of marijuana. F. Any drug paraphernalia. Drug paraphernalia includes equipment, apparatus, and/or gear generally associated with the use/abuse of alcohol, narcotic drugs, and mood-altering chemicals. Examples may include items such as “pot pipes,” cigarette-rolling papers, roach clips, weighing scales, and any other device used to measure, inject, inhale, ingest, package, deliver or facilitate the use, sale, or distribution of a controlled substance. G. All legal or illegal hemp products. H. Volatile solvents or inhalants to include glue and aerosol propellants. I. Any prescription, patent drug, caffeine pills/capsules, epinephrine, or other stimulants except those for which permission for use in school has been granted pursuant to Joint Operating Committee Policy. J. Any look-a-like substance that resembles any item above including any non-controlled substance that in its overall finished dosage appearance is substantially similar in size, shape, color, marking, or packaging to any controlled substance.