HVACR 3 Position Service Valve, King Valve: Front-Seat, Mid-Seat, Back-Seat

My Paperback & Ebook: www.acservicetech.com/the-book In This HVAC Training Video, I show the 3 Position Service Valve Positions: Front-Seat Mid-Seat, and Back-Seat. I discuss the differences between the Refrigeration King Valve and the Three Position Service Valve used for Air Conditioning. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety. Make sure that you EPA 608 certified before handling refrigerants!

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Related Videos:
Low Loss Fitting Tests:
Valve Core Removal Tool:
Valve Core Replacement:
Connect and Disconnect the Hoses Procedure:

Here are some of the Tools I use:
Appion Valve Core Removal Tool
RectorSeal Bubble Gas Leak Detector -
25 Valve Cores -
25 ¼” Brass Port Caps with rubber O-rings -
Brass Valve Core Tool which holds 3 valve cores -
Valve Core Torque Wrench -
Locking Cap Universal Lock/Unlock Tool -
Locking caps -
Ratcheting Service Wrench
Yellow Jacket Sealright 90 Coupler-
Yellow Jacket 1pk Compact Ball Valve-
Yellow Jacket 3pk Compact Ball Valve-
Thumb Screw Valve Core Depressor with Backseat-
Yellow Jacket Refrigerant Gauge Set
Refrigerant hoses with valves
Yellow Jacket Gauge set & hoses
Yellow Jacket 4 Port Manifold w Hoses
FieldpieceSMAN360 Digital Manifold Set
FieldpieceSMAN460 Digital Manifold Set
Compact Ball Valve for Refrigerant Hose
QuickDisconnect 90 for refrigerant hose
UEI DL479 Multimeter with temp sensor
JB 6 CFM Vacuum Pump
Appion Blue 3/8" to 1/4" Vacuum Hose
Appion Red 3/8" to 1/4" Vacuum Hose
Appion Valve Core Removal Tool
Yellow Jacket 1/4" by 1/4" hose
CPS Vacuum Micron Gauge
Supco Vacuum Micron Gauge
RectorSeal Bubble Gas Leak Detector
UEI DL389 Multimeter
Fieldpiece ST4 Dual Temp Meter
Air Acetylene Torch setup
15% Silver Brazing Rods
Nitrogen Regulator
Nitrogen Flow Meter
Digital Refrigerant Scale
Accutrak VPE Ultrasonic Leak Detector
Imperial Kwik Charge 535-C
FieldpieceSDMN6 Dual Manometer Pump
Supco Magnet Jumpers
2 pairs of alligator clips-
JB Vacuum Pump Oil
General Tools digital Psychrometer
Fieldpiece SDP2 Digital Psychrometer
Ratcheting Service Wrench
Appion G5 Twin Recovery Pump
Irwin Wire Stripper/Cutter/Crimper

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