Greenheck Fan ERH-45, ERH-55, ERH-90, ERH-20 manual Removing the Energy Recovery Wheel Segments

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REMOVING THE ENERGY RECOVERY WHEEL SEGMENTS

Model ERH-20, 45, 55, & 90

Steel retainers are located on the inside of the wheel rim (FIGURE 22). Push the retainer toward center of wheel, then lift up and away to

release segments (FIGURE 23). Catch-

Segment Retainer

Bracket Segment Retainer

Lift Away

From Segment

Inside of Wheel Rim

Spoke

Push Toward Center

FIGURE 22

IMPORTANT! PLACE RETAINERS BACK IN THE ORIGINAL

POSITION BEFORE ROTATING THE ENERGY

RECOVERY WHEEL. OTHERWISE DAMAGE TO

RETAINER WILL OCCUR.

FIGURE 23

CLEANING ENERGY RECOVERY WHEEL SEGMENTS

If the wheel appears excessively dirty, it should be cleaned to ensure maximum operating efficiency. Only excessive buildup of foreign material needs to be removed. DISCOLORATION AND STAINING OF ENERGY RECOVERY WHEEL DOES NOT AFFECT ITS PERFORMANCE.

Thoroughly spray wheel matrix with household cleaner such as Fantasticor equivalent. Gently rinse with warm water and using a soft brush remove any heavier accumulation. A detergent/water solution can also be used. Avoid aggressive organic solvents, such as acetone. The energy recovery wheel segments can be soaked in the above solution overnight for stubborn dirt or accumulation.

After cleaning is complete, shake the excess water from the wheel or segments. Dry wheel or segments before placing them back into the cassette. Place wheel or segments back into cassette by reversing removal procedures.

**DO NOT CLEAN ENERGY RECOVERY WHEEL SEGMENTS WITH WATER IN EXCESS OF 140°F

**DO NOT DRY ENERGY RECOVERY WHEEL SEGMENTS IN AIR IN EXCESS OF 140°F.

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Contents Read and Save These Instructions Energy Recovery Wheel Heating SectionGeneral Table of ContentsStorage Basic Operation InstallationLifting Recommended Roof OpeningDuct Work Connections Roof Curb MountingWeatherhoods InstallationExhaust Dampers Electrical ConnectionsTOP View Service Clearances / Access Panel Locations for Model ERHWater Coil Application Recommendations Water Coil Location and ConnectionElectric Post-Heater Electric Heater APPLICATION/OPERATIONTesting Dirty Filter Switch SetupFrost Control APPLICATION/OPERATION Timed exhaust frost control includes a thermostat withEconomizer APPLICATION/OPERATION FAN Wheel Rotation Start UP ChecksGeneral Coils Energy Recovery WheelFAN RPM FAN Belts Routine MaintenanceMotors Wheel and FastenersVibration External Filter MaintenanceInternal Filter Maintenance Filters Water Coil MaintenanceCoil Maintenance Maintenance of the Energy Recovery Wheel Routine Energy Recovery Wheel MaintenanceRemoving the Energy Recovery Wheel Segments Model ERH Parts ListSymptom Possible Cause Corrective Action Trouble ShootingWarranty