FL HVAC study plan

Compute a fully burdened hourly labor rate from base wage, payroll taxes, workers' comp, general liability, truck, and overhead costs for three technician tiers

Distinguish markup from gross margin and reprice five representative service and install jobs to hit a 45% gross margin target

Build a 12-month cash-flow projection for a hypothetical four-crew residential company and identify the break-even month

List the components of a complete written contract for HVAC work (scope, price, payment schedule, change orders, warranty, dispute resolution) and explain why each protects the contractor

Calculate progress billing, retainage withholding, and final payment amounts on a $180,000 residential/commercial project scenario

Draft a change-order form and three subcontract/purchase-order clauses covering payment terms, delay damages, and lien-related documentation

Contrast Florida certified vs registered contractor status, scope-of-work limits, and the role of local competency boards in licensing

Identify the Chapter 489 statutes and administrative rules governing unlicensed contracting, citation penalties, and license discipline

Outline the construction lien notice and deadline sequence a mechanical contractor must follow on a private project

Trace the Florida Building Code permit-to-closeout sequence: permit application, required inspections, and certificate of occupancy/completion for a mechanical permit

Perform a room-by-room and block load calculation for a 2,000 sq ft Florida house using Miami and Orlando design conditions

Select equipment using a sizing/sensible-heat-ratio check and verify the selected unit's sensible and latent capacity balance the calculated load

Quantify how duct gain, infiltration, and internal gains change the calculated load and explain why oversizing degrades humidity control in a hot-humid climate

Match indoor coils, air handlers, and outdoor units using AHRI ratings and verify SEER2, EER2, and HSPF2 values against current Florida efficiency requirements

Write a startup sequence covering pressure/leak test, evacuation to target microns, and charge verification by subcooling (TXV) or superheat (fixed orifice)

Calculate a total external static pressure budget and set blower speed to hit design airflow within tolerance

Identify common installation defects (line-set routing, trap, clearances, pad, condensate disposal, secondary drain pan) and the code or manufacturer provision each violates

Lay out a trunk-and-branch system and an extended plenum system using both equal-friction and velocity-reduction methods, and compare the resulting friction rates

Size supply and return ducts, registers, and grilles using face velocity and throw limits, and tabulate the results

Calculate required outdoor ventilation air and exhaust for a residence using the applicable ventilation standard and explain make-up air implications

Evaluate a duct location (attic vs conditioned space) for conduction gain and leakage loss and recommend corrective detailing

Verify duct sealing, insulation R-value, and leakage testing requirements against the energy code and record measurements on a sample system

Trace the vapor-compression cycle on a pressure-temperature chart and identify the state and superheat/subcooling at each of the four points

Calculate target superheat and subcooling for given indoor/outdoor conditions and diagnose an undercharge and an overcharge from sample readings

Apply EPA refrigerant handling rules: recovery requirements by appliance type, evacuation levels, leak repair timelines, and recordkeeping

Compute conductor ampacity, overcurrent protection, disconnect, and grounding requirements for a heat pump with auxiliary electric heat using the applicable code articles

Interpret a ladder diagram for a heat pump with auxiliary heat and write the step-by-step sequence of operation from call for cooling through defrost

Test capacitors, contactors, and PSC/ECM motors with a multimeter and state the pass/fail criteria for each measurement

Explain compressor protection devices, low-voltage control circuits, and thermostat wiring for multi-stage and heat-pump systems

Complete a full-length timed practice exam and trace every missed item back to a code section, statute, or manufacturer specification

Summarize jobsite safety requirements: lockout/tagout, PPE, ladder and fall protection, brazing fire watch, and refrigerant exposure limits

Describe environmentally compliant recovery, cylinder handling, and documentation practices for refrigerant and hazardous waste

Re-drill the two lowest-scoring domains with targeted practice sets until each reaches 80%