Trane OA1D OA2D OA3D (Indirect Gas-Fired/Electric Heat) Maintenance Manual

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General Information
OAU-SVX01E-EN
11 
Unit Inspection
As soon as the unit arrives at the job site:
Avoid breathing fiberglass dust.
Use a NIOSH approved dust/mist respirator.
Avoid contact with the skin or eyes. Wear long-sleeved, 
loose-fitting clothing, gloves, and eye protection.
Wash clothes separately from other clothing: rinse 
washer thoroughly.
Operations such as sawing, blowing, tear-out, and 
spraying may generate fiber concentrations requiring 
additional respiratory protection. Use the appropriate 
NIOSH approved respiration in these situations.
First Aid Measures
Eye Contact
Flush eyes with water to remove dust. If symptoms persist, 
seek medical attention.
Skin Contact
Wash affected areas gently with soap and warm water 
after handling.
Storage
Take precautions to prevent condensate from forming 
inside the unit’s electrical compartments and motors if:
the unit is stored before it is installed; or,
the unit is set on the roof curb, and temporary heat is 
provided in the building. Isolate all side panel service 
entrances and base pan openings (e.g., conduit holes, 
S/A and R/A openings, and flue openings) from the 
ambient air until the unit is ready for start-up.
Note: Do not use the unit’s heater for temporary heat 
without first completing the start-up procedure 
detailed in 
The manufacturer will not assume any responsibility for 
equipment damage resulting from condensate 
accumulation on the unit’s electrical and/or mechanical 
components.
Unit Clearances
 contains figures that illustrate the minimum 
operating and service clearances for either a single or 
multiple unit installation
 an
for OA1 units,
OA2 units, and 
 through 
OA3 units. These clearances are the minimum distances 
necessary to assure adequate serviceability, cataloged 
unit capacity, and peak operating efficiency.
Providing less than the recommended clearances may 
result in condenser coil starvation, “short-circuiting” of 
exhaust or recirculation of hot condenser air.
WARNING
Fiberglass Wool!
Product may contain fiberglass wool. Disturbing the 
insulation in this product during installation, 
maintenance or repair will expose you to airborne 
particles of glass wool fibers and ceramic fibers known 
to the state of California to cause cancer through 
inhalation. Glass wool fibers may also cause 
respiratory, skin or eye irritation.
Verify that the nameplate data matches the data on 
the sales order and bill of lading (including electrical 
data).
Verify that the power supply complies with the unit 
nameplate specifications.
Visually inspect the exterior of the unit, including the 
roof, for signs of shipping damage.
Visually inspect the internal components for shipping 
damage as soon as possible after delivery and before 
it is stored. Do not walk on the sheet metal base pans.
If concealed damage is discovered, notify the carrier’s 
terminal of damage immediately by phone and by 
mail. Concealed damage must be reported within 
15 days.
Request an immediate joint inspection of the damage 
by the carrier and the consignee. Do not remove 
damaged material from the receiving location. Take 
photos of the damage, if possible. The owner must 
provide reasonable evidence that the damage did not 
occur after delivery.
Notify the appropriate sales representative before 
installing or repairing a damaged unit.