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Maintenance
111 Liebert
®
CRV
™
14.5 Condensate Drain and Condensate Pump Systems
14.5.1 Condensate drain
Check for and clear obstructions in tubing during routine maintenance.
14.5.2 Condensate Pump, Dual-Float
Figure 99 Condensate pump
1. Disconnect power to the unit using the disconnect switch.
2. Check for and clear obstructions in gravity lines leading to the condensate pump.
3. Remove the sump, clean with a stiff nylon brush and flush with water.
4. Inspect and clear clogs in the discharge check valve and float mechanism.
5. Reassemble and check for leaks.
14.6 Air-Cooled Condenser and Drycoolers
1. Clear the coil surface of all debris that might inhibit airflow.
2. Check for and correct bent or damaged coil fins.
3. Do not permit snow to accumulate around or under an outdoor unit.
4. Consider having the coil surface commercially cleaned periodically.
5. Inspect fans, motors and controls for proper operation.
6. Check all piping and capillaries for proper support.
7. Inspect for leaks.
14.7 Electrical Heaters
1. Inspect and clean reheat elements.
2. Inspect and tighten support hardware.