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Unit Startup and
Maintenance
NOTE: Installation and maintenance are to be performed
only by qualified personnel who are familiar with local
codes and regulations, and experienced with this type
of equipment.
DANGER
LOCKOUT/TAGOUT all forms of hazardous energy and power sources
prior to starting, pressurizing, de-pressuring, or powering down the chiller.
Failure to follow this warning exactly can result in serious injury or death.
Be sure to read and understand the installation, operation, and service
instructions within this manual.
CAUTION
Dyes used for refrigerant leak detection are not tested or recommended for
use in Daikin Applied chillers. Use of these products may damage and/or
degrade the performance of the equipment and will void the manufacturer
warranty.
DANGER
Prevent lint, paper fibers, dust, metallic chips, or other foreign material from
getting into the inverter or accumulating on VFD cooling inlets, the heat
sinks, circuit boards, control panels, or other electrical devices. Failure to
do so may affect operation of the VFD, void warranty, result in a fire, unit
damage, property damage, severe personal injury, or death. Frequently
inspect area around inverter, heatsink, and other electrical devices to
ensure they are free of foreign material.
Pre-Startup
Inspect the chiller to ensure no components became loose or
damaged during shipping or installation including leak test and
wiring check. Complete the pre-start checklist at the front of
this manual and return to Daikin Applied prior to startup date.
NOTICE
Daikin Applied service personnel or factory authorized
service agency must perform initial startup in order to activate
warranty. Return the "Centrifugal Compressor Equipment
Startup/Warranty Registration Form" within 10 working days to
Daikin Applied as instructed on the form to obtain full warranty
benefits.
Routine Maintenance
CAUTION
Improper servicing of the lubrication system, including the addition of
excessive or incorrect oil, substitute quality oil filter, or any mishandling
can damage the equipment. Only authorized and trained service personnel
should attempt this service. For qualified assistance, contact your local
Daikin Applied service location.
IOM 1274-3 • CENTRIFUGAL WATER CHILLERS
Unit Startup and Maintenance
Lubrication
After the system is placed into operation, no other additional
oil is required except in the event that repair work becomes
necessary to the oil pump, or unless a large amount of oil is
lost from the system due to a leak.
If oil must be added with the system under pressure, use a
hand pump with its discharge line connected to the backseat
port of the valve in the lubricant drain from the compressor to
the sump. The POE oils used with R-134a and R-513A are
hygroscopic and care must be exercised to avoid exposure to
moisture (air).
The condition of compressor oil can be an indication of the
general condition of the refrigerant circuit and compressor
wear. An annual oil check by a qualified laboratory is essential
for maintaining a high level of maintenance. It is useful to have
an oil analysis at initial startup to provide a benchmark from
which to compare future tests. The local service office can
recommend suitable facilities for performing these tests.
Analysis" on page 67
discusses this important maintenance
item in greater detail and
Table 32 on page 69
the upper limits for metals and moisture in the polyolester
lubricants required by Daikin Applied chillers.
POE type oil is used for compressor lubrication. This type
of oil is extremely hygroscopic, which means it will quickly
absorb moisture if exposed to air and may form acids that
can be harmful to the chiller. Avoid prolonged exposure of
POE oil to the atmosphere to prevent issues. For more details
on acceptable oil types, contact your Daikin Applied service
representative.
WARNING
This unit contains POE lubricants that must be handled carefully and the
proper protective equipment (gloves, eye protection, etc.) must be used
when handling POE lubricant. Failure to do so can result in personal
injury. POE must not come into contact with any surface or material that
might be harmed by POE, including certain polymers (e.g. PVC/CPVC and
polycarbonate piping).
WARNING
Polyolester Oil, commonly known as POE oil is a synthetic oil used in many
refrigeration systems, and is present in this Daikin Applied product. POE
oil, if ever in contact with PVC/CPVC, will coat the inside wall of PVC/CPVC
pipe causing environmental stress fractures. Although there is no PVC/
CPVC piping in this product, please keep this in mind when selecting piping
materials for your application, as system failure and property damage could
result. Refer to the pipe manufacturer's recommendations to determine
suitable applications of the pipe.
It is important that only the manufacturer's recommended oils
be used. Acceptable POE oil types are:
• CPI/Lubrizol Emkarate RL32H
• Exxon/Mobil EAL Arctic 46
• Hatcol 3692
• Everest 46
64
"Oil
gives
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