Long Term Unit Storage; Refrigerant Charge - Trane CVHE Installation, Operation And Maintenance Manual

Recommended Maintenance
Figure 44. Purge operation under typical and leak
conditions
large leak
small leaks
typical operation
Chiller tons (per circuit)

Long Term Unit Storage

Contact your local Trane service agency for
recommendations for storage requirements for chillers to
be removed from service in excess of a normal seasonal
shut-down.
WARNING
Refrigerant May Be Under Positive
Pressure!
Failure to recover refrigerant to relieve pressure or the
use of non-approved refrigerants, refrigerant
substitutes, or refrigerant additives could result in an
explosion which could result in death or serious injury
or equipment damage. System contains oil and
refrigerant and may be under positive 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.
NOTICE:
Freezing Tubes Hazard!
Failure to ensure that water is not present in tubes
during evacuation could result in freezing tubes,
damaging the chiller.
72

Refrigerant Charge

WARNING
Refrigerant May Be Under Positive
Pressure!
Failure to recover refrigerant to relieve pressure or the
use of non-approved refrigerants, refrigerant
substitutes, or refrigerant additives could result in an
explosion which could result in death or serious injury
or equipment damage. System contains oil and
refrigerant and may be under positive 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.
Refer to Installation, Operation, and Maintenance:
Refrigerant Handling Guidelines - A Guide for the Service
Technician's Conservation & Safe Handling of Low-
Pressure Refrigerants in Trane
or the most recent revision).
Leak Testing
WARNING
Hazard of Explosion!
Failure to follow recommended safe leak test
procedures could result in death or serious injury or
equipment or property-only-damage. Never use an
open flame to detect gas leaks. Explosive conditions
may occur. Use a leak test solution or other approved
methods for leak testing.
WARNING
Hazardous Pressures!
Failure to follow these safety precautions could result
in a sudden rise of pressure possibly resulting in a
violent explosion which could result in death or serious
injury. If a heat source is required to raise the tank
pressure during removal of refrigerant from cylinders,
use only warm water or heat blankets to raise the tank
temperature. Do not exceed a temperature of 150°F. Do
not, under any circumstances apply direct flame to any
portion of the cylinder.
Important: If leak testing is required, contact a Trane
service agency.
®
Chillers (CTV-SVX05*-EN,
CVHE-SVX02H-EN