Rack Refrigeration Cycle Part 12 – EPR

December 15, 2024

In this comprehensive presentation, Matthew Taylor breaks down the critical role of Evaporator Pressure Regulators (EPRs) in parallel rack refrigeration systems.

What You’ll Learn:

The fundamental purpose of EPRs
How EPRs control evaporator temperature and pressure
Differences between A8 and SPORT valves
Pilot-operated valve mechanics
Sizing and installation considerations
Dual temperature applications
Common troubleshooting techniques

#commercial refrigeration #EEV #EPR #grocery refrigeration #market refrigeration #Rack refrigeration #refrigeration

Comments

Most popular videos

See all +

Tips for Cleaning an Air Conditioning Common Drain

Gas Furnace Overview w/ AC Service Tech

Motor Overload and Safeties – Kalos Meeting

Don’t Overfill Refrigerant Recovery Cylinders The Easy Way

How to Replace an AC Condensing Fan Motor

How to Braze Air Conditioning Copper

How to Leak Test an AC With Nitrogen Pressure

How to Properly Pipe a Drain on a Fan Coil

4 Silly Mistakes of The Green HVAC Tech

How to Install an AC Disconnect

Why a Hard Shut Off TXV Closes

The Importance of SST (Evaporator Temperature) and Using a Scale (Kalos Meeting)

Adjusting Gas Pressure on a Standard and Gemini Furnace Valve

How a Heat Pump Reversing Valve Works

How and When to Use a Schrader Core Removal Tool

Why Does The Evaporator Coil Freeze (And How to Diagnose It)

How to Measure Total External Static Pressure (TESP)

Prevent this Common Manometer Mistake

Facts About Fusite (Compressor Electrical Pass Through Connections)

See Inside a Biflow/Heat Pump Filter Drier

Flammable Refrigerant Safety Basics – Kalos Meeting

How is 208 volts different than 230/240 volts?

Tips for Hiring & Getting Hired

How is a 3-Phase Motor Different than Single Phase

HVAC Class 11/24/2020 – Electrical Review

How to Measure Gas Pressure – Kalos Meeting

What is Common, Start and Run?

Perfect Flares Every Time w/ NAVAC NEF6LM

Ask Bryan Anything Live Call-in from 11/21/2020

How to Build a Sheet Metal Coil Case From Scratch

Basic Electrical Circuit Terms

The #1 Key to Service Success?

How To Keep Motors Running Cool And Efficient

Talk Through The Refrigerant Circuit Using The “Glass Tube” trainer

Top 10 HVAC Tech Tips for 100K

Installing a Rectangle to Round Transition into an Existing Metal Duct

How Humidity Impacts The Weight of Air

Testing Home Pressure Imbalance w/ Genry Garcia (Spanish)

Some of Bryan’s Favorite New Tools Giveaway Meeting

Bert Teaches The Basic Refrigerant Circuit + Safety

Setting a Refrigerant Charge by Subcool

Soft Skills Can Be Hard (Disciplines of Growth)

How to Fabricate a Metal Supply Plenum From Scratch

Delivered Capacity Basics – Kalos Meeting

Sequencer Facts – They Aren’t All The Same

Wire Routing & Float Switch Positioning

Dual Voltage and Part Start 3-Phase Motors

Apprentice Program Day 1 – Using Your Resources w/ Jason Obrzut

Bert Cleans Out His DIRTY Work Van (And You Should Too!) #BERTLIFE

Liquid Line VS. Discharge Line

Tips for Proper AC System Cleaning – Kalos Meeting

Motor Replacement Tips & Tricks – Kalos Meeting

Better Duct Installation Practices – Kalos Meeting

THIS Is How My FIRST WEEK As An HVAC Apprentice Went (I’m Being Trained By WHO?!)

How to Find Refrigerant Leaks – Kalos Meeting

Critical System Diagnosis for Residential HVAC

Diagnosing Open & Short Circuits

Installing a Mitsubishi One-Way Ceiling Cassette In An Unfinished Room (You Can See EVERYTHING!)

How to Use a Blower Door (Como usar el Blower Door)

How to Stop Drain Snot (Bacterial Zoogloea)

Symptoms of Low Evaporator Airflow

Preventing Flooding On a Walk-In Call

Diagnosing and Replacing a Run Capacitor

Symptoms of Low Refrigerant Charge

Preventing, Finding & Repairing Refrigerant Leaks

Proper Use of Manometers for HVAC Technicians

Tool Talk Live – Probes, Bags, Hand Tools, Power Tools & More

Cleaning BARD units with Venom Packs

Electrical Basic Concepts – RSES NATE Prep

Selling, Upselling, IAQ , Hardstart Kits and More

Cutting & Installing a Rectangle Duct Connection

How to Make a Leak Free Canvas Duct Connector

Cooling Commissioning Measurements Walk Through w/ MeasureQuick

How to Checkout Blower Settings Using a Manometer

Recovery Best Practices & Giveaway

Introduction to the Fieldpiece Joblink Manometer Set

HVAC SCHOOL MONEY TALK – Don’t Make This Common Mistake

Testing out a High Performance HVAC Installation

Commercial Refrigerant Retrofit Options in a Crisis Economy #LIVE

HVAC Myth Busting #2 – Volts Go Down, Amps Go Up

Rectorseal RSH 50 Installation

Setting Up Residential Demand Ventilation with Laser Egg

DUCTLESS Control and Humidity Hack with Cielo Breez

Rectorseal Surge Protector Installation

HVAC Contractors Guide to COVID-19

DIY Cloth Mask with HEPA Pocket

How to Make an Indoor Air Cleaner the Cheap and Easy Way

Electrical Diagnostic Thinking

Human Comfort Basics – RSES NATE Prep

5 Install Mistakes that Kill Systems

UV Part 2 – Honest UV Facts from a Manufacturer

UVC Air Purification – Live Podcast Part #1

How to Make a Metal Duct Transition in the Field

Reversing Valves (RSES NATE Prep)

Sunday Coil Cleaning #BERTLIFE

Liquid Line Solenoid on Long Refrigerant Lines

Condensing Unit Install Practices (RSES NATE Prep)

HVAC Motor Types (RSES NATE Prep)

Relative Humidity in the Supply Air Stream

Advanced Combustion Analysis (HVAC) w/ Jim Bergmann

Advanced MeasureQuick Diagnosis w/ Jim Bergmann

How to Flow Nitrogen While Brazing

Compressor Tear Down (Don Gillis / Trevor Matthews)

Compressor Facts and Troubleshooting (Don Gillis / Trevor Matthews)

Nikki Krueger – The Dripping Point

Troubleshoot a Grounded (Shorted to Ground) Compressor

Using Power Factor to Check Capacitors Under Load

Straight Cool Air Conditioning Schematic (Carrier)

Charging During Low Outdoor Ambient w/ Charging Jacket

Recovery Machine Speed Race 🏁NAVAC NRDD Digital vs. Appion G5 Twin

Is There Mold in my Ducks! 🦆(Ducts)

A thermostat miswire and distracted diagnosis #BERTLIFE

Cleaning large coils with CoilPro

Inductive Reactance in Real Life

50K Subscriber Special & Behind the Scenes Tour

Compressor Won’t Run Diagnosis

A Blower and Heat Strip Dangerous Mistake

How to adjust a TXV, TEV or TX Valve

5 HVAC/R Terms That Sound Worse Than They Are

Fieldpiece Joblink Firmware Update Demo

Check out our most recent video

How to Evacuate an AC system, Full Vacuum Procedure

Our latest Podcast

HVAC School – For Techs, By Techs

Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

In this episode of the HVAC School podcast, Bryan interviews Zach from Southeast Clean Air Solutions about the intricacies of professional duct cleaning. Zach specializes in addressing duct cleaning challenges specific to the Southeastern climate, with a particular focus on fiberglass-lined ducts. The conversation delves into the complexities of cleaning different types of duct systems, highlighting the significant variations in time, technique, and approach depending on the duct materials and home configuration.

The discussion reveals that duct cleaning is far more nuanced than many homeowners realize. A typical residential duct cleaning can take between six to eight hours, with metal ductwork being significantly faster to clean than flexible ducts or fiberglass-lined systems. Zach emphasizes the importance of careful cleaning techniques, especially with delicate flex ducts that can easily be punctured or damaged during the cleaning process. He recommends a two-person approach, with one team member working inside the home and another in the attic or crawl space to ensure thorough and safe cleaning.

Beyond the cleaning process, the podcast explores critical maintenance strategies for maintaining clean and efficient HVAC systems. Zach and Bryan discuss the importance of proper filtration, home maintenance, and understanding when duct cleaning is truly necessary. They challenge the common misconception of a fixed cleaning schedule, instead advocating for system assessment based on specific conditions like household dust, humidity, and the health needs of home occupants.

Key Topics Covered:

Duct cleaning techniques for different duct materials (metal, flexible, fiberglass-lined)
Time requirements for professional duct cleaning
Challenges of cleaning ducts in various home configurations
Importance of proper filtration and maintenance
Factors determining duct cleaning frequency
Risks associated with poorly maintained duct systems
Two-person approach to thorough and safe duct cleaning
Specialized considerations for homes in humid climates
Post-cleaning sealant application for fiberglass-lined ducts

Learn more about NADCA and find certified duct cleaning contractors at https://nadca.com/.

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium. Subscribe to our podcast on your iPhone or Android. Subscribe to our YouTube channel. Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android.

Search Episodes

Duct Cleaning – How Long & How Often?

12/19/2024

Bryan Orr

Are EVs an Opportunity? – Short #222

12/17/2024

Bryan Orr

Choosing HVAC Cleaners w/ Becca from Viper

12/12/2024

Bryan Orr

Q&A – Evap Placement – Short #221

12/10/2024

Bryan Orr

Can Ducts Be Cleaned Ethically?

12/05/2024

Bryan Orr

Should I Fog or “Sanitize” My Ducts? – Short #220

12/03/2024

Bryan Orr

Condensing Furnace Drain Guidance w/ AC Service Tech

11/28/2024

Bryan Orr

What Can Be Done About Healthcare? w/ Ethos

11/26/2024

Bryan Orr

How to Predict Air Flow Issues in the Sales Process

11/21/2024

Bryan Orr

MCA is 27 and the Breaker is a 50A – Short #219

11/19/2024

Bryan Orr

Search Results placeholder

Rack Refrigeration Cycle Part 12 – EPR

Subscribe to our Youtube channel