Service and Maintenance
188 RT-SVX24J-EN
Final Process
Record the unit data in the blanks provided.
Table 61. Evaporative Condenser Models—Maintenance andTroubleshooting
Maintenance Schedule
Component Action Frequency Comments
Fan Motor None Required Non-grease bearings
Sump Pump Inspect / Clean 1 – 2 times per year Clean inlet openings to pump
Sump Inspect / Clean
1 – 2 times per year depending
on water hardness and unit run
time
Sump can be drained and hosed out using hose bib
provided at water fill solenoid valve. Vacuuming scale out
is an alternate method
Sump Float Switch Inspect 1 – 2 times per year Float should be free for full float travel
Sump Float Make Up
Valve
Inspect for proper water
level
1 – 2 times per year
Spray Nozzles Inspect / Clean 1 – 2 times per year Inspection through access panel
Conductivity Sensor Inspect / Clean 1 – 2 times per year Clean sensor to ensure accurate readings
Conductivity Controller Inspect / Recalibrate 1 – 2 times per year Recalibrate controller
Troubleshooting
Component Problem Check Fix
Fan Motor Does not run
Condenser Fan Relay closure and
control voltage indicating a call
from compressor control panel
for the condenser fan to operate.
Sump Pump Overload Trip. Fan
Motor Overload Trip. Fan fuse
trip.
Check each motor overload and reset if necessary.
Check amp draw for each leg.
Sump Pump Does not run
Sump Pump Overload Trip Low
Water Level or faulty float
switch. Unit in ‘Dry Mode’
Operation
Reset – check amps on each leg to determine if faulty motor.
Check and clean debris around float switch. Check Ambient
thermostat setting and mode of operation (close on rise).
See section 2 for T’stat setup instructions.
Sump Pump Low Flow
Pump may be operating
backwards or impeller inlet may
be slightly blocked.
Change pumping direction by changing any two legs to the
pump motor. Disconnect Power and remove pump to inspect
for possible impeller obstruction.
Spray Nozzle Dry area on coil
Check for proper spray pattern
over each quadrant.
Remove debris from clogged nozzle.
Table 62. Unit Data Log
Complete Unit Model Number:
Unit Serial Number:
Unit “DL” Number (“design special” units only):
Wiring Diagram Numbers (from unit control panel):
-schematic(s)
-connections
Network ID (LCI/BCI):
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