JOHNSON CONTROLS
2
YORK® by Johnson Controls fans consist of a fan housing,
impeller, shaft, bearings, and motor mounting plate (where
required). All impellers are statically and dynamically balanced.
RECEIVING AND INSPECTION
YORK® by Johnson Controls fans are carefully inspected
before leaving the factory. When the unit is received, inspect
the carton for any signs of tampering. Inspect the unit for any
damage that may have occurred during transit and check for
loose, missing or damaged parts. Mishandled units can void
the warranty provisions. YORK® by Johnson Controls is not
responsible for damages incurred during shipment.
Avoid severe jarring and/or dropping. Handle units with care
to prevent damage to components or special finishes.
HANDLING
Fans should be hoisted with slings placed around the fan housing.
When a single hoist is used, a “spreader”will keep the sling from
slipping on the housing. If it is necessary to use hooks placed
in lifting holes of fan, BE CAREFUL NOT TO DISTORT OR
BEND THE HOUSING. Large units may have lifting lugs or
holes which should be used only to stabilize the unit while
using a sling to support the weight.
Chain or wire slings should be well padded where they contact
the fan, especially where special coatings and paints are
involved. Rubber, phenolic enamels, etc. require special care as
they may easily be damaged by contact in lifting. Even a small
chip will destroy the corrosion prevention seal of the coating
and allow corrosion to start. Always repair scratched surfaces
with touch up of like coating prior to installation.
STORAGE
Store in a dry, protected area being sure fan shaft, bearings and
impeller are protected against dust and corrosion.
If it is necessary to store outdoors or within a building under
construction, special care must be taken to prevent moisture,
corrosion, dirt or dust accumulation. Coat the shaft with grease
or rust preventative compound. Cover and seal bearings to
prevent entrance of contaminants. Impeller should be rotated at
least once a month to circulate the grease in bearings.
If stored outdoors over seven (7) days, cover completely with a
tarp or heavy waterproof paper. Electrical connections and leads
must be protected from moisture. Block impeller to prevent
natural rotation. Do not allow material of any kind to be piled on
top or inside of fan.
LONG TERM STORAGE (OVER 1 MONTH)
Long-term storage is defined as storage for period exceeding
one month from the date the equipment was received. Fans and
motors should be stored in a dry, low humidity area indoors.
Equipment which is to be installed, but not operated for several
months, should first be blocked to take the weight off of the
vibration isolators (if provided), and then given the same
protection, periodic inspection and maintenance as a unit in
storage.
To prevent puddle corrosion of fan bearings that undergo long
term storage the following preventive maintenance must be
performed:
1. Fan bearings must be relubricated every month until the
fans are put into service. A clear 1/16” bead of grease must
appear on each side of the bearings. Fan wheels are to be
rotated manually while the bearings are relubricated. Refer
to the specific bearing lubrication instructions located on
the fan housing for the type of lubricant to use.
2. Inlet vanes should be operated at least once a month while
in storage. A spray lubricant such as:
•
Dow Corning Molykote 557
•
Dow Corning Molykote G Spray- Bonded Lubricant
or equivalent should be applied to the bushing joints to
assure corrosion protection while in storage.
3. Motor bearings should be lubricated as recommended by
the motor manufacturer.
SURFACE PROTECTION
Most fans are available with special paint finished to protect
the fan against a wide variety of adverse conditions. The standard
finish furnished without additional charge is well suited for
indoor use. Fans installed in severe outdoor applications (i.e.,
coastal areas, etc.) may require additional surface protection.
The outdoor finish must be compatible with Alkyd base paint.
Architecturally pleasing colors are available from many paint
manufacturers. This allows the owner to make the outside color
choice at the time of the fan installation to match architectural
features of the building.
BEARING PROTECTION
Fans equipped with standard duty bearings have been test run
at the factory. These bearings are prelubricated and should not
require any additional grease for startup. However, if unit is
not put in service immediately, it is advisable to add lubricant
so as to expel
any air voids in
the bearing reservoir which
may ultimately collect condensation or moisture. The excess
INTRODUCTION