Trane CVGF1000, Installation, Operation & Maintenance Manual

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CAUTION
OIL CONTAMINATION
Due to the hygroscopic properties of POE oil, all oil must be stored in metal contain-
ers. The oil will absorb water if stored in a plastic container.
Oil Charging
CVGF units ship factory charged with 15 gallons (56.8 l) of oil and a 5 psig (34 kPa) @
70 °F (20°C) dry nitrogen holding charge.
Note: The correct oil charge for all CVGF units is 15 gallons (56.8 l) of Trane OIL00037
(Trane OIL00037 is R134a miscible oil in 1-gallon (3.785 l) containers). A 5 gallon (18.9
l) container of Trane approved R134a oil is available (Trane OIL00049). As with mineral
oil, if water is in the system it will react with the oil to form acids. Use the following
table to determine the acceptability of the oil.
POE Oil Properties Acceptable Levels
Moisture content less than 300 ppm
Acid Level less than 0.5 TAN (mg KOH/g)
Trane recommends subscribing to an oil analysis program to determine the condition
of the oil rather than changing the oil on a periodic basis. This program will reduce
the chiller’s lifetime oil consumption and minimize refrigerant emissions. The oil anal-
ysis should be performed by a qualified laboratory, experienced in refrigerant and oil
chemistry, and the servicing of Trane centrifugal chillers.
Oil Charging Procedure
Use appropriate oil as specified:
USA Europe
Oil 0037 Oil 021E
Oil 0049 Oil 0020E
Unit Charged With Refrigerant
1. Decant the oil from the shipping container into the cylinder of an oil recovery and
recharge unit per the unit operation instructions (15 gallons (56.8 l) required).
2. A vacuum of at least 500 microns must be attained and an oil temperature of at
least 122°F (50°C) maintained to remove existing moisture. A standing vacuum rise
test should be performed after the distillation process is complete to insure the
oil has completely outgassed any moisture or non-condensibles. A vacuum rise of
less than 100 microns (0.1 mm Hg) in a 2 hour period indicates the oil is ready for
transfer.
3. Attach the oil transfer hose of the recovery unit oil pump to the oil sump charging
and drain valve and evacuate.
4. Open the oil charging valve on the bottom of the oil tank of the CVGF and operate
the oil recovery and recharge unit oil pump to charge the oil into the tank.
5. When the oil is at the center of the upper sight glass, stop the transfer of oil.
6. Energize the oil heaters.
7. At the control panel, go to the Service Tests menu and scroll down to the “oil
CVGF-SVX03B-EN
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Periodic Maintenance