Routine Maintenance - Greenheck ECV Series Installation, Operation And Maintenance Manual

Routine Maintenance

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.
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.
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:
Lubrication
Apply lubrication where required
Dampers
Check for unobstructed operation
Motors
Check for cleanliness
Blower Wheel & Fasteners
Check for cleanliness
Check all fasteners for tightness
Check for fatigue, corrosion, wear
External Filter
Check for cleanliness - clean if required
Internal Filter
Check for cleanliness - replace if required
Door Seal
Check if intact and pliable
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Maintenance Procedures:
Lubrication
Check all moving components for proper lubrication.
Apply lubrication where required. Any components
showing excessive wear should be replaced to maintain
the integrity of the unit and ensure proper operation.
Dampers
Check all dampers to ensure they open and close
properly and without binding. Backdraft dampers can
be checked by hand to determine if blades open and
close freely. Apply power to motorized dampers to
ensure the actuator opens and closes the damper as
designed.
Fan Motors/Fans
Motor maintenance is generally limited to cleaning
and lubrication. Cleaning should be limited to exterior
surfaces only. Removing dust and grease buildup on
the motor housing assists proper motor cooling. Never
wash-down motor with high pressure spray. Greasing
of motors is only intended when fittings are provided.
Many fractional motors are permanently lubricated for
life and require no further lubrication.
To access the fan motors on units with multiple supply
and exhaust fans (ECV-30 and ECV-40). The fan closest
to the outside of the unit can be accessed using the
blower access door. The interior fans and motors will
need to be accessed from inside the unit. First remove
the energy cores and filters from the unit, next remove
the core support that separates the supply and exhaust
air streams on the blower panel. Next remove the intake
cone panel that houses both the intake cones for the
exhaust air stream (upper rectangular panel). Once this
is removed, you should have access to the exhaust
fan that is located on the control side of the housing.
Reinstall intake cone panel and then remove the lower
intake cone panel (lower rectangular panel). This will
allow access to the supply blower that is located on the
control side of the housing. Replace panel after service,
reinstall core support that was removed, then reinstall
cores and filters.
Fan Wheel & Fasteners
Wheels require very little attention when moving clean
air. Occasionally oil and dust may accumulate on the
wheel causing imbalance. When this occurs the wheel
and housing should be cleaned to assure smooth and
safe operation. Inspect fan impeller and housing for
fatigue, corrosion or wear.
Routinely check all fasteners, set screws and locking
collars on the fan, motor base and accessories for
tightness. A proper maintenance program will help
preserve the performance and reliability designed into
the fan.
External Filter Maintenance
Aluminum mesh, 2-inch deep filters are located in the
supply weatherhood (if the weatherhood option was
Energy Core Ventilator 19