Recommended Maintenance
94 CVHH-SVX001A-EN
RuptureGuard Maintenance
It is recommended that the RuptureGuard be visually
inspected and the relief valve pressure tested annually.
The test can be performed with the valve in place and the
refrigerant in the chiller.
The vent line drip leg must be periodically checked for
accumulation of water or refrigerant. Drain any
accumulation that may be present into an evacuated,
properly labeled vessel and dispose of in accordance with
local, state and federal codes.
EarthWise Purge Maintenance
Maintenance requirem ents for an EarthWise purge system
with Tracer AdaptiView control are described in this
section. To ensure efficient and reliable purge operation,
perform all inspections and procedures at the prescribed
intervals. Keep records of inspection results to establish
proper service intervals. Document changes that occur in
purge activity that could provide information about chiller
performance.
Note: Graphic labels (shown above) are used for CE
application only.
Important:
• Before servicing, disconnect all power sources and
allow at least 30 minutes for capacitors to discharge.
• All electrical enclosures—unit or remote—are IP2X.
Weekly Maintenance
Perform the following maintenance procedure on a weekly
basis:
Figure 52. Purge operation under typical and leak
conditions
WARNING
Contain Refrigerant!
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. 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.
Chiller tons ( per circuit)
Purge minutes/ day
large leak
small leaks
typical operation
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/ tagout procedures to ensure the
power can not be inadvertently energized.
CAUTION
Hot Surfaces!
Failure to follow instructions below could result in
minor to severe burns. Surface temperatures may
exceed 148.9°C (300°F) on condensing unit and carbon
tank. Wear protective gear and allow surfaces to cool
before servicing these parts or any part located in their
vicinity.
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