Refrigeration System; Refrigerant Evacuation And Charging; Compressor Oil - Trane Voyager Commercial Installation & Operation Manual

Refrigeration System

R-410A Refrigerant under Higher Pressure than R-22!
The unit described in this manual uses R-410A refrigerant which operates at higher pressures
than R-22 refrigerant. Use ONLY R-410A rated service equipment or components with this unit.
For specific handling concerns with R-410A, please contact your local Trane representative.
Failure to use R-410A rated service equipment or components could result in equipment or
components exploding under R-410A high pressures which could result in death, serious injury,
or equipment damage.
Contains Refrigerant!
System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure
before opening the system. See unit nameplate for refrigerant type. Do not use non-approved
refrigerants, refrigerant substitutes, or refrigerant additives. Failure to follow proper procedures
or the use of non-approved refrigerants, refrigerant substitutes, or refrigerant additives could
result in death or serious injury or equipment damage.

Refrigerant Evacuation and Charging

The unit is fully charged with R-410A refrigerant from the factory. However, if it becomes necessary
to remove or recharge the system with refrigerant, it is important that the following actions are
taken. Failure to do so may cause permanent damage to the compressor.
Note: Do not release refrigerant to the atmosphere! If adding or removing refrigerant is required,
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Note: Do not charge liquid refrigerant into the suction line with the compressor off. This increases
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Compressor Oil

If a motor burn out is suspected, use an acid test kit to check the condition of the oil. Test results
will indicate an acid level has exceeded the limit if a burn out occurred. Oil test kits must be used
for POE oil (OIL00079 for a quart container or OIL00080 for a gallon container) to determine
whether the oil is acid.
RT-SVX34C-EN
WARNING
WARNING
the service technician must comply with all federal, state, and local laws.
To prevent cross contamination of refrigerants and oils, use only dedicated R-410A service
equipment.
Disconnect unit power before evacuation and do not apply voltage to compressor while under
vacuum. Failure to follow these instructions will result in compressor failure.
Due to the presence of POE oil, minimize system open time. Do not exceed 1 hour.
When recharging R-410A refrigerant, it should be charged in the liquid state.
It is recommended that the compessor should be off when the initial refrigerant recharge is
performed
It is recommended that the initial refrigerant be charged into the liquid line prior to starting the
compressor. This will minimize the potential damage to the compressor due to refrigerant in
the compressor at startup.
both the probability that the compressor will start with refrigerant in the compressor oil
sump and the potential for compressor damage.
If suction line charging is needed to complete the charging process, only do so with the
compressor operating.
Allow the crankcase heater to operate a minimum of 8 hours before starting the unit.
Maintenance
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