106
CDHH-SVX003C-EN
If the purge pump-out time is in the small leak region, then
a leak check should be performed and all leaks repaired at
the earliest convenience. If the purge pump-out time is in
the large leak region, a thorough leak check of the unit
should be performed immediately to find and fix the leaks.
Figure 70. Purge operation under typical and leak
conditions
Large Leak
Small Leak
Typical Operation
Purge Minutes per Day
Chiller Tons per Circuit
140
120
100
80
60
40
20
0
400 600 800 1000 1200 1400 1600 1800 2000
Leak Testing
WARNING
Explosion Hazard!
Failure to follow safe leak test procedures below
could result in death or serious injury or equipment or
property-only-damage.
Never use an open flame to detect gas leaks. Use a
leak test solution for leak testing.
Note: Graphic labels (shown above) are used for CE
application only.
WARNING
Hazardous Pressures!
Failure to follow instructions below could result 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.
Recommended System
Maintenance
NOTICE
Proper Water Treatment Required!
The use of untreated or improperly treated water
could result in scaling, erosion, corrosion, algae or
slime.
Use the services of a qualified water treatment
specialist to determine what water treatment, if any, is
required. Trane assumes no responsibility for
equipment failures which result from untreated or
improperly treated water, or saline or brackish water.
Recommended Maintenance
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