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Refrigeration Service Operations
132
from being obtained. Failure to follow these
recommendations may result in conditions that
will destroy the vacuum pump.
Gauge Manifold Sets
Gauge manifold sets that show the correct
pressure-temperature relationship should be used.
Gauge manifolds and manifold hoses used with
other Thermo King refrigerants maybe used but
extreme care should be taken to prevent
contamination of the R-404A systems with other
refrigerants. Purge manifold and hoses with dry
nitrogen before using. Never use equipment that
may be contaminated with automotive type
polyalkylene glycol (PAG) oils.
System Clean-up
Existing clean up devices such as suction line
filters and compressor oil filters may be used if
they are thoroughly cleaned and new filter
elements are installed. All standard compressor
oils must be removed from clean-up devices to
prevent contamination of R-404A systems.
Dangerous contamination will result if other
refrigerants or standard oils are introduced to
R-404A systems.
NOTE: For additional information on parts and
supplies, consult your local Thermo King dealer
and Thermo King Tool Catalog.
Refrigerant Recovery
Present systems can be adapted to the recovery of
R-404A but should be dedicated to the recovery of
these refrigerants. Consult the manufacturer of
your recovery equipment for details.
Summary of Contents for 914970
Page 3: ...3...
Page 10: ...Table of Contents 10...
Page 40: ...Operating Instructions 40...
Page 82: ...Electronic Controls 82...
Page 92: ...Electrical Maintenance 92...
Page 124: ...Refrigeration Maintenance 124...
Page 140: ...Hilliard Clutch Maintenance 140...
Page 160: ...Refrigeration Diagrams 160...
Page 163: ...Index 163 W wiring 85 wiring diagrams 165...
Page 164: ...Index 164...
Page 166: ...Wiring and Schematic Diagrams Index 166...
Page 167: ...167 Cab Control RD Wiring Diagram...
Page 168: ...168 RD w o Thermostat Cab Control Schematic...
Page 169: ...169 RD Cab Box Wiring Diagram...
Page 170: ...170 RD Cab Control w Thermostat Schematic Diagram...
Page 171: ...171 RD 50 STD 3 Phase Wiring Diagram Page 1 of 2...
Page 172: ...172 RD 50 STD 3 Phase Wiring Diagram Page 2 of 2...
Page 173: ...173 RD 50 STD 3 Phase Schematic Diagram Page 1 of 2...
Page 174: ...174 RD 50 STD 3 Phase Schematic Diagram Page 2 of 2...
Page 175: ...175 RD 30 STD Wiring Diagram Page 1 of 2...
Page 176: ...176 RD 30 STD Wiring Diagram Page 2 of 2...
Page 177: ...177 RD 30 STD Schematic Diagram Page 1 of 2...
Page 178: ...178 RD 30 STD Schematic Diagram Page 2 of 2...
Page 179: ...179 RD 30 C S Wiring Diagram Page 1 of 2...
Page 180: ...180 RD 30 C S Wiring Diagram Page 2 of 2...
Page 181: ...181 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 182: ...182 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 183: ...183 RD 50 C S 3 Phase Wiring Diagram Page 1 of 2...
Page 184: ...184 RD 50 C S 3 Phase Wiring Diagram Page 2 of 2...
Page 185: ...185 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 186: ...186 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...