Cleaning Non-Porous Surfaces; Cleaning Porous Surfaces; Drain Pans - Trane BCHE Installation, Operation And Maintenance Manual

effectively combats microbial growth and curbs moisture-
related deterioration of air-handling components.

Cleaning Non-Porous Surfaces

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. Verify that no power is
present with a voltmeter.
If microbial growth on a non-porous insulating surface
(closed cell insulation or sheet metal surface) is observed:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, use a brush for sheet metal surfaces or a
soft sponge on a foil face or closed cell foam surface to
mechanically remove the microbial growth.
Note: Be careful not to damage the non-porous surface
of the insulation.
3. Install a block-off to prevent spray from going into a dry
section of the unit and/or system ductwork.
4. Thoroughly clean the contaminated area(s) with an
EPA-approved sanitizer specifically designed for HVAC
use.
5. Rinse the affected surfaces thoroughly with fresh water
and a fresh sponge to prevent potential corrosion of the
drain pan and drain line.
6. Repeat steps 4 and 5 as necessary.
7. Confirm the drain line is open following the cleaning
process.
8. Allow the unit to dry thoroughly before putting it back
into service.
9. Replace all panels and parts and restore electrical
power to the unit.
10. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

Cleaning Porous Surfaces

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. Verify that no power is
present with a voltmeter.
BCX-SVX002A-EN
To clean a porous insulating surface matte face (fiberglass
insulation):
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, use a vacuum device with a HEPA filter
(99.97 percent efficient at 0.3 micron particles) to
remove the accumulated dirt and organic matter.
Note: Be careful not to tear the insulation surface or
edges.
3. Confirm the drain line is open following the cleaning
process.
4. Allow the unit to dry thoroughly before putting it back
into service.
5. Replace all panels and parts and restore electrical
power to the unit.
6. Be careful any contaminated material does not contact
other areas of the unit or building. Properly dispose of
all contaminated materials and cleaning solution.

Drain Pans

WARNING
Hazardous Chemicals!
Failure to follow this safety precaution could result in
death or serious injury. Coil cleaning agents can be
either acidic or highly alkaline and can burn severely
if contact with skin or eyes occurs.
Handle chemical carefully and avoid contact with
skin. ALWAYS wear Personal Protective Equipment
(PPE) including goggles or face shield, chemical
resistant gloves, boots, apron or suit as required. For
personal safety refer to the cleaning agent
manufacturer's Materials Safety Data Sheet and follow
all recommended safe handling practices.
The condensate drain pan and drain line must be checked
to assure the condensate drains as designed. This
inspection should occur a minimum of every six months or
more often as dictated by operating experience.
If evidence of standing water or condensate overflow
exists, identify and remedy the cause immediately. Refer to
"Diagnostics and Troubleshooting," p. 123
causes and solutions. Refer to Installation — Mechanical
section for drain pan removal steps if necessary.
To clean drain pans:
1. Disconnect all electrical power to the unit.
2. Wearing the appropriate personal protective
equipment, remove any standing water.
3. Scrape solid matter off of the drain pan.
4. Vacuum the drain pan with a vacuum device that uses
high-efficiency particulate arrestance (HEPA) filters
with a minimum efficiency of 99.97 percent at
0.3 micron particle size.
Routine Maintenance
for possible
121