NRDDF
User Manual
Recovery Unit forFlammable Refrigerants
Page 1: ...NRDDF User Manual Recovery Unit for Flammable Refrigerants...
Page 2: ...wire connection according to the technical standardand circuit diagram connected and grounded The power must be cut off and no display in LCD before inspecting or repairing If the original power suppl...
Page 3: ...on The air moisture is harmful to the recovery result and will shorten the life span of the unit 4 A filter drier should always be used and should be replaced regularty And each type of refrigerant mu...
Page 4: ...Category V R32 R402A R404A R407A R407B R410A R507 NRDDF NRDDF NRDDF 38 5bar 3850kpa 558psi 32 104 F Rerfigerants High Temp Vapor Direct Vapor Direct Liquid Push pull Liquid R 22a 0 62 lbs min 0 55 lb...
Page 5: ...open open stops rotating Digital Control Board...
Page 6: ...he START button to start machine 8 Turn the knob to recover 9 Observe the reading of the lowpressure gauge when it reaches to 20inHg after 20 seconds LP cutoff opens and the machine shuts off Disconne...
Page 7: ...urn the knob to Slow position slowly then the reading of low pressure gauge drops until fluid hammer stops but do not let reading pressure drop to zero otherwise inlet port is not pumping once at zero...
Page 8: ...s START button to start machine then it starts liquid push pull mode 4 Turn the knob to Recover control board recovery Refer to section 6 of OPERATION MANUAL on page 3 Could restart with pressure rise...
