120
CLCH-SVX07C-EN
Routine Maintenance
The following checklist is provided as an abbreviated guide to periodic maintenance. Detailed
procedural information is given after this checklist.
WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures recommended in this section of the manual
could result in exposure to electrical, mechanical or other potential safety hazards. Always refer
to the safety warnings provided throughout this manual concerning these procedures. When
possible, disconnect all electrical power including remote disconnect and discharge all energy
storing devices such as capacitors before servicing. Follow proper lockout/tagout procedures to
ensure the equipment cannot be inadvertently energized. When necessary to work with live
electrical components, have a qualified licensed electrician or other individual who has been
trained in handling live electrical components perform these tasks. Failure to follow all of the
recommended safety warnings provided, could result in death or serious injury.
WARNING
Rotating Components!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/ tagout procedures to ensure the equipment can not be inadvertently energized. Secure
drive sheaves to ensure rotor cannot freewheel. Failure to secure drive sheaves or disconnect
power before servicing could result in death or serious injury.
Maintenance Checklist
Table 34.Maintenance Checklist
Frequency
Maintenance
After 48 hours
of operation
Belts have acquired their permanent set. Readjust but do not overtighten. See
“Tension the Fan Belt” on page 106
for more
information.
Every week
Observe unit weekly for any change in running condition and unusual noise.
Every month
• Clean or replace air filters if clogged or dirty; coat permanent filters with oil after cleaning; change bag filters when pressure
drop is 1 in. wg. See
“Air Filters” on page 121
for more information.
• Relubricate fan bearings if necessary. See
“Fan Bearing Lubrication” on page 123
for more information.
• Check and adjust fan belt tension.
Every three to
six months
• Check fan bearing grease line connections. Lines should be tight to the bearings.
• Check bearing and motor bracket bolt torque and bearing setscrew torque.
• Align fan and motor sheaves. Tighten sheave set screws to the proper torque. See
“Align Fan and Motor Sheaves” on page 108
for more information.
• Inspect and clean drain pans. See
“Drain Pans” on page 121
for more information.
• Tighten electrical connections.
• Inspect coils for dirt build-up. See
“Coils” on page 124
for more information.
Every year
• Inspect the unit casing for corrosion. If damage is found, clean and repaint.
• Clean the fan wheels and fan shaft. See
“Fans” on page 122
for more information.
• Inspect and clean drain pans.
• Check damper linkages, set screws, and blade adjustment. Clean, but do not lubricate, the nylon damper rod bushings.
• Clean damper operators.
• Inspect electrical components and insulation.
• Inspect wiring for damage.
• Rotate the fan wheel and check for obstructions in the fan housing. The wheel should not rub on the fan housing. Adjust the
center if necessary and tighten wheel set screws to the proper torque.
• Lubricate motor bearings in accordance with motor manufacturer’s recommendations (see
“Fan Bearing Lubrication” on
page 123
for more information).
• Check condition of gasketing and insulation around unit, door and dampers.
• Examine flex connections for cracks or leaks. Repair or replace damaged material.
Summary of Contents for AM4A0A18S11SA Series
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Page 100: ...96 CLCH SVX07C EN Installation Electrical Figure 84 Typical VFD wiring schematic ...
Page 101: ...CLCH SVX07C EN 97 Installation Electrical Figure 85 Typical starter wiring schematic ...
Page 135: ...CLCH SVX07C EN 131 Notes ...
Page 146: ...10 1 2 STEP 8 Lift the Coil section up and away from the Blower section Set aside ...
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