Table of Contents
Advertisement
Maintenance
Inspecting and Cleaning the Drain
Pan
Check the condensate drain pan and drain line to ensure
that the condensate drains properly at least every six
months or as dictated by operating experience.
If evidence of standing water or condensate overflow
exists, take steps to identify and remedy the cause
immediately. Refer to the troubleshooting section of this
manual for possible causes and solutions.
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.
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06*-EN.
Clean drain pans using the following procedure:
1. Disconnect all electrical power to the unit.
2. Don the appropriate personal protective equipment
(PPE).
3. Remove all standing water.
4. Use a scraper or other tools to remove and solid
matter. Remove solid matter with a vacuum device that
utilizes high efficiency particulate arrestance (HEPA)
filters with a minimum efficiency of 99.97% at 0.3
micron particle size.
5. Thoroughly clean the contaminated area(s) with a mild
bleach and water solution or an EPA-approved sanitizer
specifically designed for HVAC use. Carefully follow
the sanitizer manufacturer's instructions regarding
product use.
6. Immediately rinse the drain pan thoroughly with fresh
water to prevent potential corrosion from the cleaning
solution.
7. Allow the unit to dry thoroughly before putting the
system back into service.
8. Properly dispose of all contaminated materials and
cleaning solution.
62
Compressors
Scroll Compressor Failure Diagnosis and
Replacement
If compressor failure is suspected, refer to COM- SVN01A-
EN for detailed information regarding compressor failure
diagnosis and replacement of scroll compressors.
Refrigerant System
If refrigerant system repair is required, Leak Test, Brazing
and Evacuation Procedures are described.
Preliminary charging is described in the Installation–
Mechanical section,
"Preliminary Refrigerant Charging,"
p. 29
and final charging is described in the Startup section,
"Final Refrigerant Charge," p.
Refrigerant systems that have been opened must have
filter driers replaced and complete leak test and
evacuation before recharging. Unit is equipped with
replaceable filter core option for easy maintenance.
Refrigerant Leak Test Procedure
WARNING
Confined Space Hazards!
Failure to follow instructions below could result in death
or serious injury.
Do not work in confined spaces where refrigerant or
other hazardous, toxic or flammable gas may be leaking.
Refrigerant or other gases could displace available
oxygen to breathe, causing possible asphyxiation or
other serious health risks. Some gases may be
flammable and or explosive. If a leak in such spaces is
detected, evacuate the area immediately and contact the
proper rescue or response authority.
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.
59.
PKG-SVX027A-EN
Hide quick links:
Advertisement
Table of Contents
