Being Safe is Your Responsibility.
Wear proper eye protection whenever working.
Wear proper hearing protection whenever
working in a machine room.
Stand to one side–never work directly in
front of:
•
Any valve you are opening or closing
Manual refrigeration valves
Regulator valves on brazing tanks and
nitrogen tanks
•
Electrical Circuit Breakers
•
Refrigeration lines you are cutting or opening
Always use a pressure regulator with a nitro-
gen tank.
•
Do not exceed 2 pounds of pressure and
vent lines when brazing.
•
Do not exceed 350 pounds of pressure for
leak testing high side.
•
Do not exceed 150 pounds of pressure for
leak testing low side.
Use only a striker to light torch.
Know whether a circuit is open at the power
supply or not. Remove all power before
opening control panels.
Always supply proper ventilation.
•
Refrigerants and nitrogen can displace oxygen
causing suffocation.
•
Refrigerants exposed to flame can produce
phosgene, a poisonous gas.
Be sure refrigeration lines are free of pressure
before cutting. Check:
•
Both sides of a two way valve
•
All lines to a 3-way or 4-way valve
Dangerous hydraulic explosions may result if
you
•
Isolate liquid lines or compressor when they
can absorb heat over an extended time period
•
Overfill pumpdown refrigerant containers
Never vent refrigerants
into the atmosphere.
Revised August 1, 1996
SAFETY TIPS
Contents
Tables
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