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SWEEP CHARGE PROCEDURE . Page 1 - 5. SWEEP CHARGE EQUIPMENT & SAFETY. TANK OF LIQUID REFRIGERANT DO NOT: Drop or handle tank roughly Tamper with the safety valve Store the tank in direct sunlight or in a damp location

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SWEEP CHARGE PROCEDURE


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Presentation Transcript
slide1

SWEEP CHARGE

PROCEDURE

Page 1 - 5

slide2

SWEEP CHARGE

EQUIPMENT & SAFETY

  • TANK OF LIQUID
  • REFRIGERANT
  • DO NOT:
  • Drop or handle tank roughly
  • Tamper with the safety valve
  • Store the tank in direct sunlight
  • or in a damp location
  • Heat the tank above 125 degrees
  • Heat the tank with a torch
  • Refill the tank
  • CHARGING SCALE
  • Used to measure refrigerant
  • charge
  • CHARGING HOSE
  • With ball type hand valve
  • Should have low-lose adaptor
slide3

SWEEP CHARGE

EQUIPMENT & SAFETY

  • PURGING HOSE
  • Used to purge sealed systems
  • Should have low-loss adaptors
  • For purging non-operating systems
  • CLAMP ON ACCESS VALVE
  • Used to access the sealed system
  • for purging of the system
  • PROCESS TUBE ADAPTOR KIT
  • Used to attach hand valves to
  • various sizes of tubing
  • LEAK DETECTION METHODS
  • Bubble Solution
  • Electronic Leak Detector
slide4

SWEEP CHARGE

EQUIPMENT & SAFETY

  • SWAGING KIT
  • Used to flare tubing of the system
  • HEAT GUN
  • Used to heat a non-operating
  • compressor
  • Used to heat evaporator
  • Used to heat refrigerant tank
  • BRAZING EQUIPMENT
  • Oxy-Acetylene
  • Double tip torch
  • BRAZING ALLOYS/SUPPLIES
  • 15% Silfos
  • 45% Silver Solder
  • Flux
slide5

SWEEP CHARGE

EQUIPMENT & SAFETY

  • RECOVERY BAG
  • Mark bag with type of refrigerant
  • Never mix refrigerants
  • Leave purge hose hooked to bag
  • Fill & empty no more than 4 times
  • Treat the recovery bag with care
  • Holds 24 oz. of R12 or R500
  • Holds 20 oz. Of R22 or R134a

DO NOT OVER FILL

THE BAG

slide6

SWEEP CHARGE

EQUIPMENT & SAFETY

STRIKER, TUBING CUTTER

INSPECTION MIRROR,

STEEL BRUSH, TRIANGULAR

FILE

  • HEAT TRAP PASTE
  • Protects components or areas
  • that should not be heated

REFRIGERATION SANDING

CLOTH

TEFLON TAPE

TUBING BENDER

slide7

R-12, R-22 or R134a

SWEEP CHARGE IN ACTION

slide8

SWEEP CHARGE

PROCEDURE

Preparing the work area

slide10

PURGING THE SEALED SYSTEM

WITH AN OPERATING COMPRESSOR

WARM

EVAPORATOR

CONNECT BAG

& HOSE TO DRIER

WITH TEMPORARY

ACCESS VALVE

START

COMPRESSOR

RUN FOR 8

MINS.

After 8 mins. remove hose &

shut down compressor

MAKE THE REPAIRS

slide11

PURGING THE SEALED SYSTEM

WITH A NON-OPERATING COMPRESSOR

WARM

EVAPORATOR

CONNECT BAG

& HOSE TO HIGH

SIDE & LOW SIDE

WITH TEMPORARY

ACCESS VALVE

CHECK BAG

FOR

CONTAMINATION

PURGE FOR 15

MINS. WHILE

HEATING THE

COMPRESSOR

AFTER 12

MINS. BANG

COMPRESSOR

3 OR 4 TIMES

After 15 mins. remove hoses &

MAKE THE REPAIRS

slide12

REPLACING THE DRIER

AND RELATED COMPONENTS

CUT INLET

slide13

BACK FLUSHING THE SYSTEM

Un-braze and isolate high-side components that will be back flushed. Remove filter-drier from system.

Page 38-39

slide14

SWEEP CHARGE PROCEDURE

Special Procedure

Note: Remove Valve Core When Heating Filter Drier

slide15

CHARGING THE SEALED SYSTEM

(Refrigerators, Freezers & Under-Counter Ice Makers)

Sweeping & Leak Check

HEAT

TANK

Never over 125

degrees

ZERO

SCALE

CONNECT TANK

& HAND VALVE

START THE

COMPRESSOR

SWEEP FOR

3 MINS

SLOWLY ADD

4 OZ OF

REFRIGERANT

CHECK FOR

LEAKS

CONNECT RECOVERY BAG PURGE FOR 5MINS.

slide16

CHARGING THE SEALED SYSTEM

(Refrigerators, Freezers & Under-Counter Ice Makers)

Final Charging

HEAT

TANK

Never over 125

degrees

CONNECT TANK

& HAND VALVE

SLOWLY ADD

SPECIFIED

CHARGE

REMOVE HAND VALVE

CLOSE REFRIGERANT TANK

WRAP TEFLON TAPE TO ACCESS VALVE

slide17

EPA Type 1 Certification Information

Good for all products containing Five pounds of refrigerant or less

Covers all of Whirlpool’s refrigeration products

Open book NON proctored test with a passing score of 84%

Can be done online or by mail from

Qwik Products online or by mail $24.95

Http://www.epatest.com/icor_e_home608.html

Narda by mail only 800-394-8378

$35.00