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