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56
PURON
R
(R--410A) QUICK REFERENCE GUIDE
S
Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment and replacement
components are designed to operate with Puron
S
Puron refrigerant cylinders are rose colored.
S
Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.
S
Puron systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose when
charging into suction line with compressor operating
S
Manifold sets should be minimum 700 psig high side and 180 psig low side with 550 psig low--side retard.
S
Use hoses with minimum 700 psig service pressure rating.
S
Leak detectors should be designed to detect HFC refrigerant.
S
Puron, as with other HFCs, is only compatible with POE synthetic oils.
S
Vacuum pumps will not remove moisture from oil.
S
Do not use liquid--line filter driers with rated working pressures less than 600 psig.
S
Do not leave Puron suction line filter driers in line longer than 72 hrs.
S
Do not install a suction--line filter drier in liquid line.
S
POE synthetic oils absorb moisture rapidly. Do not expose oil to atmosphere.
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POE synthetic oils may cause damage to certain plastics and roofing materials.
S
Wrap all filter driers and service valves with wet cloth when brazing.
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A factory approved liquid--line filter drier is provided with every unit.
S
Do NOT use an R--22 TXV.
S
Never open system to atmosphere while it is under a vacuum.
S
When system must be opened for service, recover refrigerant, evacuate then break vacuum with dry nitrogen and replace filter
driers. Evacuate to 500 microns prior to recharging.
S
Do not vent Puron into the atmosphere.
S
Observe all
warnings
,
cautions
, and
bold
text.
577C
Summary of Contents for bryant 577C-C
Page 4: ...4 A190119 Fig 3 24 36 Unit Dimensions 577C...
Page 5: ...5 A190120 Fig 4 42 60 Unit Dimensions 577C...
Page 16: ...16 A150502 Fig 14 208 230 1 60 Connection Wiring Diagram 577C...
Page 17: ...17 A150510 Fig 14 Cont 208 230 1 60 Ladder Wiring Diagram 577C...
Page 18: ...18 A150508 Fig 15 208 230 3 60 Connection Wiring Diagram 577C...
Page 19: ...19 A150511 Fig 15 Cont 208 230 3 60 Ladder Wiring Diagram 577C...
Page 20: ...20 A150509 Fig 16 460 3 60 Connection Wiring Diagram 577C...
Page 21: ...21 A150512 Fig 16 Cont 460 3 60 Ladder Wiring Diagram 577C...