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Important: If level is less than 4 inches from the bottom
of the oil separator, contact your local
Trane office.
Unit Size
Oil Separator Size
(tons)
150 to 200
225 to 330
375 to 550
Figure 40. Nominal oil level
To Oil Separator
Service Valve
Condenser Coil Cleaning
For information regarding the proper microchannel coil
cleaning procedure, see Microchannel Coil Servicing
Guidelines Service Guide (RF-SVG001*-EN).
Coil Cleaning Interval
Clean condenser coils at least once a year or more
frequently if it is in a "dirty" environment. A clean condenser
coil will help maintain chiller operating efficiency.
Cleaning Air Side of Coils
NOTICE
Coil Damage!
Use of coil cleaning agents on uncoated coils could
cause damage to coils.
Do not use coil cleaning agents to uncoated clean
coils. Use clean water only.
AC-SVX003A-EN
Nominal Oil Charge
(in)
Height (in)
10
9.0
12
8.5
12
8.5
14
9.7
Nominal oil level:
10 in oil sep: 9.0 in
12 in oil sep: 8.5 in
14 in oil sep: 9.8 in
Do not use detergents to clean the air side of coils. Use
clean water only. Clean from inside out by removing end
panels.
Cleaning Microchannel Coils
For proper operation, microchannel condenser coils must
be cleaned regularly. Eliminate pollution and other residual
material help to extend the life of the coils and the
Regular coil maintenance, including annual cleaning,
enhances the unit's operating efficiency by minimizing
compressor head pressure and amperage draw. The
condenser coil should be cleaned at minimum once each
year, or more if the unit is located in a "dirty" or corrosive
environment.
NOTICE
Coil Damage!
Use of detergents could cause damage to coils.
Do not use detergents to clean coils. Use clean water
only.
Cleaning with cleansers or detergents is strongly
discouraged. Water should prove sufficient. Any breach in
the tubes can result in refrigerant leaks.
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious
injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives
or other energy storing components provided by
Trane or others, refer to the appropriate
manufacturer's literature for allowable waiting periods
for discharge of capacitors. Verify with a CAT III or IV
voltmeter rated per NFPA 70E that all capacitors have
discharged.
1. Disconnect power to the unit.
Use a soft brush or vacuum to remove base debris or
surface loaded fibers from both sides of the coil.
Note: When possible, clean the coil from the opposite
direction of normal air flow (inside of unit out) to
push debris out.
Using a sprayer and water ONLY, clean the coil
following the guidelines below.
a. Sprayer nozzle pressure should not exceed 580
psi.
b. The maximum source angle should not exceed 25°
to the face of the coil. See figure below. For best
results spray the microchannel perpendicular to
face of the coil.
Maintenance
95
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