Trane IntelliPak CG-SVX02B-EN, Installation & Operation Manual

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57
Service & Maintenance
Monthly Maintenance
Before completing the following checks, turn all system con-
trol circuit switches to the “Off” position.
“Open” the main power disconnect switches for the Con-
densing Unit and all system support equipment. “lock” the
disconnect switches in the “Off” position before removing
any access panels.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote discon-
nects before servicing. Follow proper lockout/tagout
procedures to ensure the power can not be inadvert-
ently energized. Failure to disconnect power before ser-
vicing could result in death or serious injury.
Air Handling Equipment
(Comfort Applications)
[ ] Inspect the return air filters. Clean or replace them if nec-
essary.
[ ] Check the drain pan and condensate piping to ensure
that there are no blockages.
[ ] Inspect the evaporator (DX and/or Hydronic) coils for dirt.
If the coils appear dirty, clean them according to the in-
structions described in the “Coil Cleaning” section.
[ ] Inspect the economizer damper hinges and pins (if appli-
cable) to ensure that all moving parts are securely
mounted. Clean the blades as necessary.
[ ] Verify that all damper linkages move freely (if applicable);
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 bear-
ings as necessary.
[ ] Lubricate the supply fan bearings. Refer to the equip-
ment manufacturer for their recommended greases.
Note: Over lubrication can be just as harmful as not
enough grease.
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 en-
sure that the shaft is held securely to the bearings and
Fan wheels. Make sure that all bearing supports are
tight.
[ ] Check the supply fan belt(s). If the belts are frayed or
worn, replace them.
[ ] Verify that all wire terminal connections are tight.
[ ] 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.
Condensing Unit
[ ] Manually rotate the condenser fans to ensure free move-
ment and check motor bearings for wear. Verify that all of
the fan mounting hardware is tight.
[ ] Verify that all wire terminal connections are tight.
[ ] Inspect the condenser coils for dirt and foreign debris. If
the coils appear dirty, clean them according to the in-
structions described in the “Coil Cleaning” section.
[ ] Straighten any bent coil fins with a fin comb. Refer to
Table 14 to determine the appropriate fin comb size.
[ ] Inspect the compressor and condenser fan motor contac-
tors. If the contacts appear severely burned or pitted, re-
place the contactor. Do not clean the contacts.
[ ] Check the compressor oil level. (Compressors “Off”)
Table 14
Condenser Coil Data
Unit Size
Number
of Coils
Coil Fin
Configuration
Tube
Diameter
Coil
Rows
Fins
per
Foot
Coil Size
(inches)
Subcooler
Size
(inches)
Tube
Type
C20 1 Slit Fin 0.375" 3 144 61 X 71 10 X 71 smooth
C25 2 Slit Fin 0.375" 3 144
45 X 71
35 X 71
14 X 71 smooth
C30 2 Slit Fin 0.375" 3 144 56 X 70 9 X 70 smooth
C40 2 Slit Fin 0.375" 3 144 56 X 70 9 X 70 smooth
C50 2 Slit Fin 0.375" 3 144 57 X 96 9 X 96 smooth
C60 2 Slit Fin 0.375" 4 144 57 X 96 9 X 96 smooth