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R134a Visual Inspection Sight Glass / R1234yf Visual Inspection Sight Glass
WARNING
• WEAR GOGGLES!!
• AVOID CONTACT WITH REFRIGERANT
PREPARING THE SIGHT GLASS
When Using Vacuum from a Recycling Machine
1.
Connect both the red and the blue hoses
supplied to the corresponding end of the sight
glass.
2.
Connect both the red and blue coupler to the
corresponding end of the hose. Close each
coupler by turning the knob counterclockwise
(manual couplers only.) Connect the blue low
side hose and coupler from your RRR machine
to the low side fitting on the blue side of the
sight glass.
3.
Open both ball valves on each side of the sight
glass.
4.
Run a vacuum for 3 minutes from the control
panel on your RRR machine. This will remove
any atmosphere from the sight glass to allow
for an accurate test.
5.
Disconnect the low side RRR machine coupler
from the sight glass when vacuum run time is
completed.
6.
Go to using the sight glass section.
When Using Vacuum from a Vacuum Pump
1.
Close both ball valves. Connect the red hose
supplied to the red side of the sight glass.
Attach the high side coupler to the hose
and close the coupler by turning the knob
counterclockwise (manual couplers only.)
2.
Connect the low side coupler to the blue hose
and close the coupler by turning the knob
counterclockwise (manual couplers only.)
3.
Connect the low side coupler to the service
port on the sight glass. Open the coupler by
turning the knob clockwise (manual couplers
only.)
4.
Connect the other end of the blue hose to your
vacuum pump.
5.
Open the red high side ball valve, leave the
blue low side ball valve closed.
6.
Run your vacuum pump for 3 minutes. This
will remove any atmosphere from the sight
glass to allow for an accurate test.
7.
Disconnect the blue hose from the vacuum
pump when vacuum time is completed. Close
the low side coupler by turning the knob
counterclockwise (manual couplers only.)
Disconnect the blue coupler from the sight
OPERATING INSTRUCTIONS
R134a Visual Inspection Sight Glass
with R134a Quick Couplers
R1234yf Visual Inspection Sight Glass
with R1234yf Quick Couplers
R134a Visual Inspection Sight Glass
with R134a Manual Couplers
R1234yf Visual Inspection Sight Glass
with R1234yf Couplers with Extended Disconnect Sleeve
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Summary of Contents for MasterCool 53375
- Page 1 R134a Visual Inspection Sight Glass / R1234yf Visual Inspection Sight Glass OPERATING INSTRUCTIONS WARNING • WEAR GOGGLES!! • AVOID CONTACT WITH REFRIGERANT PREPARING THE SIGHT GLASS When Using Vacuum from a Recycling Machine Connect both the red and the blue hoses supplied to the corresponding end of the sight glass.
- Page 2 glass. The fittings on the blue hose and coupler both have auto shutoff’s which will maintain the vacuum created in the sight glass and hoses. Connect the blue hose to the blue side of the sight glass. USING THE SIGHT GLASS Close both ball valves on the sight glass.
- Page 3 POSSIBLE CONTAMINANTS THAT CAN BE SEEN IN THE INSPECTION GLASS INCLUDE: CARBONIZED OIL PARTICLES When oil is exposed to high temperatures RUBBER PARTICLES Aggressive acids penetrating rubber parts MOISTURE Leaks, incorrect or insufficient vacuum or wrong/inferior quality additives METAL SILVER/CHIPS Compressor seizure or metal parts abrasion AGGRESSIVE ACIDS Chemical reaction between moisture and refrigerant/oil or incorrect oil mixtures...
- Page 4 WARNING: This product can expose you to chemicals including Di (2-ethylhexyl) phthalate, lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. View other diagnostic & testing tools made by Mastercool on our website.
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