Four service calls today. You pick the order. Break between each one.
0 of 4 missions complete
Math
Quote the Job
🧮
Price It Out
A homeowner needs a new air handler and coil. Price it accurately — too high and you lose the job, too low and you lose money.
Step 1 — Parts
Parts: Air handler $680 | Evap coil $290 | Refrigerant 3 lbs @ $28/lb | Line set $95 | Fittings $38. Find total parts.
Step 2 — Labor
You charge $95/hr. The job takes 3.5 hours.
Step 3 — Grand total
Add parts + labor for subtotal. Apply 10% tax on parts only. What is the grand total?
Science
How AC Works
❄️
The Refrigeration Cycle
Every HVAC tech needs to understand the refrigeration cycle. It is the foundation of everything you work on.
Question 1
An AC does not create cold air. What does it actually do?
Question 2
AC runs constantly but house stays warm. One cause: low refrigerant. What does low refrigerant do?
Question 3
A dirty air filter restricts airflow across the evaporator coil. What happens?
Reading
Service Ticket
📋
Read the Ticket
Every call starts with a service ticket. Read it carefully — the details tell you what to bring and what to watch out for.
SERVICE TICKET #8834
Customer: Diane Reyes — 2207 Crestview Lane
Complaint: AC runs constantly but house never gets below 80F. Utility bill doubled.
System: Carrier 3-ton split system, installed 2014
Last service: 3 years ago
Notes: Customer reports hissing sound near indoor unit. Dog on premises — secure before opening exterior unit.
Question 1
Hissing sound near the indoor unit. What does it most likely mean?
Question 2
System not serviced in 3 years. What do you check first before diagnosing refrigerant?
Question 3
The ticket mentions a dog. What do you do before opening the exterior unit?
Life Skills
Handle It Professionally
🤝
On the Job
HVAC is built on trust. People let you into their homes. How you behave determines whether they call you back.
Scenario 1
You found a refrigerant leak — 45 minutes, $220 in parts to fix. How do you explain this to the customer?
Scenario 2
While there you notice the furnace has a cracked heat exchanger — a carbon monoxide risk. Not your job. What do you do?
Scenario 3
You get a 5-star review and your boss calls to thank you. How do you respond?
❄️
All Systems Go.
Four calls handled. Every system running. That is HVAC work, Adam.
4
Calls Done
--
Correct
🏀 Go outside. Move around. You earned it.
What you covered today:
🧮 Math — Full job quote with parts, labor, and parts-only tax
❄️ Science — How refrigeration cycles work and what goes wrong
📋 Reading — Service tickets and diagnostic clues
🤝 Life Skills — In-home professionalism and safety responsibility