AZ HVAC study plan

Map each Arizona Registrar of Contractors license classification (residential, commercial, dual, specialty) to the specific scopes of work your company performs and note which classification covers each

Outline the complaint and investigation flow from complaint filing through Registrar action, listing the notice, response, and hearing rights at each step

State the written-contract, advertising, and disclosure requirements that apply to a residential bid or change order in Arizona

List the penalties and citation exposure for unlicensed contracting and for performing work outside your licensed classification

Identify the recordkeeping and posting obligations (license number on vehicles, ads, and contracts) you must verify on a real job file

Trace the vapor-compression cycle through all four state points and label pressure-temperature relationships for R-410A, R-32, and R-134a

Differentiate CFC, HCFC, HFC, and HFO refrigerants and classify zeotropic versus azeotropic blends by glide and charging method (liquid vs vapor)

Explain the function of compressor, condenser, metering device, evaporator, accumulator, and receiver, and predict how a fault in each shows up in system pressures and temperatures

Calculate superheat and subcooling from gauge and thermometer readings, then use the results to classify a system as overcharged, undercharged, or restricted

Identify refrigerant recovery, evacuation, and leak-detection requirements that apply under EPA Section 608 for each refrigerant type

Compare natural-draft, induced-draft, condensing, and 80% versus 90%+ furnace designs and list the heat-exchanger inspection points unique to each

Sequence the ignition and operating sequence for a standing-pilot furnace and a hot-surface-ignition furnace, including safety lockout timing

Describe split versus packaged equipment configurations and explain reversing-valve operation and the defrost cycle on a heat pump

Select equipment using manufacturer capacity tables and AHRI matched-system data at design conditions

Distinguish the ventilation and combustion-air requirements that apply to each equipment category

Read and redraw a ladder diagram, identifying line voltage, control voltage, and each safety and limit switch in the circuit

Apply Ohm's law to calculate current, voltage drop, and resistance in motor and control circuits

Compare PSC, ECM, and shaded-pole motors by wiring, speed control, and failure symptoms

Test capacitors, contactors, and transformers with a meter and interpret the readings against nameplate values

Describe lockout/tagout and safe diagnostic practice for line-voltage components

Size a trunk-and-branch duct system using equal-friction and velocity-reduction methods, and justify the method chosen

Measure and interpret external static pressure, then identify the causes of excessive static in a real or simulated system

Explain fittings, transitions, and takeoff selection and their effect on friction loss and air balance

Write a brazing and soldering procedure that specifies alloy and flux selection, nitrogen purge, heat direction, and post-braze inspection

Perform leak testing and evacuation to a specified micron level and explain why moisture and non-condensables must be removed

Perform a room-by-room load calculation using Manual J principles: envelope, windows, orientation, infiltration, and internal gains

Separate sensible from latent load and explain how each drives equipment selection and airflow

Apply Manual S concepts to select equipment that matches the calculated load without excessive oversizing

Calculate required airflow from sensible and latent load and check the result against blower tables

Identify the PPE, ladder, and fall-protection requirements for typical residential and light-commercial HVAC tasks

Describe refrigerant, combustion, and electrical hazard controls, including confined-space and lockout/tagout procedures

Build an estimate that correctly distinguishes markup from margin and calculates overhead and profit recovery

Explain Arizona preliminary 20-day notice and lien procedures and how they tie to contract and payment terms

Produce a change-order and job-cost tracking method for a small crew

Take two timed 100-question practice exams covering all nine domains and log every missed item by domain

Re-study the two weakest domains using your own week 1-7 deliverables as the primary reference

Re-drill calculation types (superheat/subcooling, load, airflow, markup) until each is completed without notes

Verify every Arizona licensing and lien fact against your week 1 cheat sheet one final time