Rooftop Packaged HVAC Units Explained

Learn how a Rooftop Packaged HVAC Unit works, and when to add a Return or Exhaust Fan to the RTU.
How many tons does a Rooftop Unit go up to. See the ranges from 2-Tons to 162-Tons explained in this video. When are economizers required?
ESTIMATING SPREADSHEETS
✅ #1 HVAC & Plumbing Estimating Spreadsheet: mepacademy.gumroad.com/l/AgJDH
✅ HVAC Estimating Spreadsheet: mepacademy.gumroad.com/l/fhxei
✅ Plumbing Estimating Spreadsheet: mepacademy.gumroad.com/l/bcdah
✅ Residential Estimating Spreadsheet: mepacademy.gumroad.com/l/tdwbh
NEWSLETTER & TH-cam SUBSCRIBE
✅ Subscribe for more Videos like this: bit.ly/3J21zXL
✅ Signup for our FREE Engineering/Construction Newsletter: eepurl.com/hJGcTL
✅ Watch our most recent videos: / mepacademy
------------------- SOCIAL ------------------
⚙️ MEP Academy Website - mepacademy.com
⚙️ Twitter - / mep_academy
⚙️ Facebook: / mechanicaltrades
--------IMPORTANT VIDEOS TO WATCH---------
HVAC ENGINEERING and CALCULATIONS
💧How to Calculate Motor Break Horsepower: • How to Calculate Motor...
💧Fan Laws, Calculate CFM, SP, RPM, HP: • Fan Laws How to Calcul...
💧How to Calculate Static Pressure and CFM: • How to Calculate Stati...
💧Condensate Piping Design and Sizing: • Condensate Piping Desi...
💧How do you define a BTU or Tons of AC: • What is a BTU or Ton o...
💧Sensible Heat Transfer Equation for Water: • Sensible Heat Transfer...
💧Sensible Heat Transfer Equation for Air: • Sensible Heat Transfer...
💧Sensible and Latent Heat Transfer Formula for Air: • Sensible and Latent He...
CHILLERS and COOLING TOWERS
💧How Chillers Work, Air-Cooled & Water-Cooled: • How Air and Water Cool...
💧Chiller IPLV Calculation: • Chiller IPLV Calculation
💧Calculate Total BTU of Chiller or Coil: • How to Calculate Total...
💧Calculate GPM or TDH of Chiller or Coil: • How to calculate GPM o...
💧How Cooling Towers Work, Crossflow vs Counterflow: • How Cooling Towers Wor...
REFRIGERATION and REFRIGERANTS
💧How Electronic Expansion Valves Work: • How Electronic Expansi...
💧Refrigeration Cycle: • Refrigeration Cycle 101
💧Refrigerant Piping Insulation: • Refrigerant Piping Ins...
💧New Refrigerants, Codes and Standards: • New Refrigerants Codes...
HVAC SYSTEMS
💧How a Variable Air Volume System Works: • How a Variable Air Vol...
ESTIMATING
💧HVAC Piping Unit Pricing: • HVAC Piping Unit Pricing
💧HVAC Equipment Cost Database: • HVAC Equipment Cost Da...
💧MEP Estimating Spreadsheet: • HVAC and Plumbing Cons...
💧Construction Labor Rates with Burden: • How to Figure Construc...
HYDRONICS and PIPING
💧How to Read Pump Chart and Select Pump: • How to Read Pump Chart...
BUSINESS - CONSTRUCTION & CONTRACTING
💧Bid Bonds and Performance Bonds: • Construction Bid Bond ...
💧Top 3 Things to Know Before Bidding Commercial Projects: • Top 3 Things to Know B...
💧Top 12 Construction Bidding Websites: • Top 12 Construction Bi...
CONSTRUCTION BASICS
💧General Layout of Construction Drawings: • General Layout of Cons...
💧How to Read Specifications: • How to Read Constructi...
ELECTRICAL and CONTROLS
💧How Variable Frequency Drives Work in HVAC Systems: • How Variable Frequency...
VARIABLE REFRIGERANT FLOW
💧VRF Videos: / @vrfwizard
#MEPAcademy #HVAC #Engineering

[@zaclone2372]

my friend you are a life saver! you just explained it way better than my professors:) Much love from Kuwait

[@MEPAcademy]

Thank you

[@coreygamage1457]

Great videos so far. I'm watching them all from the oldest to the newest. This section perhaps needs more explanation of what duct static pressure is and when economizer mode should be used.

[@MEPAcademy]

Thanks for the suggestion. We'll be sure to cover these topics in future videos.

[@jasonjohnsonHVAC]

I work on a lot of Intellipaks. Probably my favorite rtu

[@MEPAcademy]

The industry needs a lot more experienced technicians like yourself. Thanks for watching.

[@danielamador4306]

What’s the difference between auxiliary electric heat and back up electric heat on a ASHP RTU?

[@MEPAcademy]

In area's where the outside temperatures get really cold, the use of a backup heater can supplement the limited capacity of the unit.

[@streetpharmacist]

Why go 100% outside air, isnt that inefficient?

[@MEPAcademy]

There are times when the outdoor air can satisfy the load without running the compressor, that's why economizers are mandated by energy codes. See our other video on Air Economizers for a better explanation. th-cam.com/video/2UCmNs8qGBk/w-d-xo.html