RT-SVX36G-EN
185
Maintenance
e. Cut off the mains supply and wait until the display turns off.
f. Reconnect the mains supply - the frequency converter is now reset.
g. Ensure parameter 14-22 Operation Mode has reverted back to “Normal Operation”.
Notes:
•
Item 5 resets the drive to the default factory settings. The program parameters listed in
will need to be verified or changed as described in Item 3 and 4.
•
Some of the parameters listed in the Table are motor specific. Due to various motors and
efficiencies available, use only the values stamped on the specific motor nameplate. Do not use
the Unit nameplate values.
•
A backup copy of the current setup may be saved to the LCP before changing parameters or
resetting the drive. See LCP Copy in the VFD Operating Instructions for details.
6. Follow the start-up procedures for supply fan in the “Variable Air Volume System” section or
the “Exhaust/return Airflow Measurement” start-up procedures for the exhaust/return fan.
7.
After verifying that the VFD(s) are operating properly, press the STOP key at the Human
Interface Module to stop the unit operation.
8. Follow the applicable steps in the “Final Unit Checkout” section to return the unit to its normal
operating mode.
Monthly Maintenance
Before completing the following checks, turn the unit OFF and lock the main power disconnect
switch open.
Filters
•
Inspect the return air filters. Clean or replace them if necessary. Refer to the
for
filter information.
Cooling Season
•
Check the unit’s drain pans and condensate piping to ensure that there are no blockages.
•
Inspect the evaporator and condenser coils for dirt, bent fins, etc. If the coils appear dirty, clean
them according to the instructions described in “Coil Cleaning” later in this section.
•
Manually rotate the condenser fans to ensure free movement and check motor bearings for
wear. Verify that all of the fan mounting hardware is tight.
•
Inspect the F/A-R/A damper hinges and pins to ensure that all moving parts are securely
mounted. Keep the blades clean as necessary.
•
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.
•
Lubricate the supply fan shaft bearings with a lithium based grease. Refer to
for recommended greases.
Note:
The bearings are manufactured using a special synthetic lithium based grease designed for
long life and minimum lube intervals. Over lubrication can be just as harmful as not enough.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
Содержание IntelliPak SAHL Series
Страница 47: ...RT SVX36G EN 47 Installation Figure 16 Unit rigging Figure 17 Typical unit base and roof curb cross section...
Страница 65: ...RT SVX36G EN 65 Installation Figure 30 Hot Water Piping 90 130 Ton Figure 31 Steam Coil Piping 20 36 Ton...
Страница 86: ...86 RT SVX36G EN Installation Figure 38 Field connection diagram notes for 20 89 ton CV or VAV applications...
Страница 87: ...RT SVX36G EN 87 Installation Figure 39 Typical field wiring diagram for 20 89 ton VAV control option 2307 9177...
Страница 88: ...88 RT SVX36G EN Installation Figure 40 Typical field wiring diagram for 20 89 ton VAV control option...
Страница 173: ...RT SVX36G EN 173 Startup Checklists Figure 88 Dry bulb changeover map...
Страница 175: ...RT SVX36G EN 175 Maintenance Figure 89 Unit internal fuse replacement data for air handling units...
