Trane Voyager Commercial - Refrigerant Coils and Component Repair; Refrigerant Coil Cleaning Precautions; Microchannel Condenser Coil Repair; Final Process Record Keeping

RT-SVX34C-EN 121
Maintenance
• Verify that all damper linkages move freely; lubricate with white grease, if necessary.
• Check supply fan motor bearings; repair or replace the motor as necessary.
• Check the fan shaft bearings for wear. Replace the bearings as necessary. These bearing are
considered permanently lubricated for normal operation. For severe dirty applications, if
relubrication becomes necessary, use a lithium based grease. See Table 69, p. 123 for
recommended greases.
Note: The bearings are manufactured using a special synthetic lithium based grease designed for
long life and minimum relube intervals. Over lubrication can be just as harmful as not
enough.
Use a hand grease gun to lubricate these bearings; add grease until a light bead appears all around
the seal. Do not over lubricate!
After greasing the bearings, check the setscrews to ensure that the shaft is held securely. Make sure
that all bearing braces are tight.
• Check the supply fan belt(s). If the belts are frayed or worn, replace them.
• Check the condition of the gasket around the control panel doors. These gaskets must fit
correctly and be in good condition to prevent water leakage.
• Verify that all terminal connections are tight.
• Remove any corrosion present on the exterior surfaces of the unit and repaint these areas.
• Generally inspect the unit for unusual conditions (e.g., loose access panels, leaking piping
connections, etc.)
Make sure that all retaining screws are reinstalled in the unit access panels once these checks are
complete.
With the unit running, check and record the:
• ambient temperature;
• compressor oil level (each circuit);
Table 67. Deflection Force
Belts
Cross
Section
Small P.D
Range
Deflection Force (Lbs.)
Super Gripbelts Gripnotch Steel Cable Gripbelts
Min. Max. Min. Max. Min. Max.
A
3.0 -3.6 3 4 1/2 3 7/8 5 1/2 3 1/4 4
3.8 - 4.8 3 1/2 5 4 1/2 6 1/4 3 3/4 4 3/4
5.0 - 7.0 4 5 1/2 5 6 7/8 4 1/4 5 1/4
B
3.4 - 4.2 4 5 1/2 5 3/4 8 4 1/2 5 1/2
4.4 - 5.6 5 1/8 7 1/8 6 1/2 9 1/8 5 3/4 7 1/4
5.8 - 8.8 6 3/8 8 3/4 7 3/8 10 1/8 7 8 3/4
Table 68. Deflection Force
Deflection Force (Lbs.)
Belt
Cross
Section
Small P.D
Range
358 Gripbelts 358 Gripnotch Belts
Min. Max. Min. Max.
5V
4.4 - 8.7 — — 10 15
7.1 - 10.9 10 1/2 15 3/4 12 7/8 18 3/4
11.8 - 16.0 13 19 1/2 15 22