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Unit Startup Procedures
NOTICE:
Compressor Failure!
To protect compressors from premature failure the unit
must be powered and crankcase heaters energized at
least 24 hours BEFORE compressors are started.
Prior to calling for start-up services or commissioning,
CG-ADF005*-EN (CGWR Installation Completion Check
List and Request for Trane Service) or CG-ADF006*-EN
(CCAR Installation Completion Check List and Request for
Trane Service), as appropriate, must be completed and
submitted. Once CG-ADF005*-EN or CG-ADF006*-EN has
been submitted, CG-ADF007*-EN (Start-up Check List for
CGWR and CCAR Chillers) must be followed and
submitted.
Pre-Start Up Procedures Check
List
Complete each step in the "Pre-Start Up Procedures"
check list included in CG-ADF007*-EN (Start-up Check List
for CGWR and CCAR Chillers) and check off each step as
completed.
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.
Sequence of Operation
Power Applied
to Unit Controller
Chiller
Level
Unit Controller
Boot Time
(24 to 90 Sec)
Lead
Circuit
Lag
Circuit
CG-SVX038A-EN
Call for Cooling
Auto
(Power
Auto
up Start
Delay)
Confirm Evaporator
Enforce Power Up
Start Delay Time
Water Flow
(6 to 600 Sec)
(30 to 120 Sec)
Auto
Equipment Damage!
•
To prevent overheating at connections and under-
voltage conditions at the compressor motor, check
tightness of all connections in the compressor power
circuit.
•
To prevent compressor damage, do not operate the
unit with discharge or liquid line service valves
closed.
•
The use of untreated or improperly treated water in a
Chiller may result in scaling, erosion, corrosion, algae
or slime. It is recommended that the services of a
qualified water treatment specialist be engaged to
determine what water treatment, if any, is required.
The Trane Company assumes no responsibility for
equipment failures which result from untreated or
improperly treated water, or saline or brackish water.
•
To prevent evaporator or condenser damage, pipe
strainers must be installed in the water supplies to
protect components from water born debris. Trane is
not responsible for equipment damage caused by
water born debris.
Waiting to
Auto
Start
(0 to 5 Sec)
Energize
Condenser Water
Pump Relay
(Only if Chiller
Controls Pump)
Auto
Auto
Enforce Restart
Inhibit Timer
(0 to 5 Mins)
Open
Solenoid
Valve
Auto
NOTICE:
Running
Running
Energize
Lead
Compressor
33
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