Cvgf-Svu02B-E4 - Trane CVGF-SVU02B-E4 Operation And Maintenance Manual

Weigh the cylinder as the oil is
being transferred and shut off
the cylinder valve when the
desired weight of oil has been
transferred. Backseat the angle
valve to shut off oil flow and
remove the hose from the
Schrader valve. Be sure to
replace the Schrader and angle
valve cap and secure them when
sampling is complete. Recover
the oil and refrigerant from the
oil sample hose or line with an
approved R134a recovery unit.
When oil analysis indicates the
need to change the oil (high
acidity, moisture, and so forth),
use the following procedure for
removing the oil.
Removing Compressor Oil
Make sure the unit is not running
and the power has been
disconnected to the oil heaters.
To remove the compressor oil,
attach an oil recovery and
recharge hose or line to the oil
sump drain valve located on the
bottom of the oil sump (See
Figure 24. Attach the refrigerant
vapor return hose or line of the
recovery unit to the condenser
service valve. Open the oil sump
drain valve and condenser
service valve and activate the oil
recovery process according to
the operation specifications of
the recovery unit. After all the oil
has been recovered and residual
R134a refrigerant vapor returned
to the condenser, shut the oil
drain valve and condenser
service valve off and secure the
caps to both valves.
80
Periodic
Maintenance
Figure 24. CVGF compressor oil system component locations
Oil filter cover
1/4" Schrader valve
Oil level sightglasses
Oil heater - 500 w
Oil sump drain valve
Oil Heater - 500 w
Oil filter isolation valves

CVGF-SVU02B-E4