Routine maintenance – Greenheck Fan HEAT RECOVERY UNIT WITH EVAPORATIVE COOLING HRE-20 User Manual
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Once the unit has been put into operation, a routine maintenance program should be set up to preserve
reliability and performance. Items to be included in this program are:
SAFETY CAUTION!
Use caution when removing access panels or other
unit components, especially while standing on a
ladder or other potentially unsteady base . Access
panels and unit components can be heavy and
serious injury may occur .
SAFETY DANGER!
Electric shock hazard . Can cause injury or death .
Before attempting to perform any service or
maintenance, turn the electrical power to unit to OFF
at disconnect switch(es) . Unit may have multiple
power supplies .
ROUTINE MAINTENANCE
DATE DATE DATE DATE
______
______
______
_____
Lubrication
Apply lubrication where required
o
o
o
o
Dampers
Check for unobstructed operation
o
o
o
o
Fan Belts
Check for wear, tension, alignment
o
o
o
o
Motors
Check for cleanliness
o
o
o
o
Blower Wheel & Fasteners
Check for cleanliness
o
o
o
o
Check all fasteners for tightness
o
o
o
o
Check for fatigue, corrosion, wear
o
o
o
o
Bearings
Check for cleanliness
o
o
o
o
Check set screws for tightness
o
o
o
o
Lubricate as required
o
o
o
o
External Filter
Check for cleanliness - clean if required
o
o
o
o
Internal Filter
Check for cleanliness - replace if required
o
o
o
o
Door Seal
Check if intact and pliable
o
o
o
o
Coil Maintenance
Check for cleanliness (coil and drain pan)
o
o
o
o
Winterizing Coils
Drain - Fill with antifreeze - Drain
o
o
o
o
Energy Recovery Wheel
Check for cleanliness - clean if required
o
o
o
o
Check belt for wear
o
o
o
o
Check pulley, bearings, and motor
o
o
o
o
Evap Cooler Section
Refer to Evaporative Cooler Maintenance section o
o
o
o