Greenheck KSFB / KSFD (463556) - Manual (Page 6)

6 KSFB and KSFD Make-Up Air
®
5. Air Volume Measurement and Check: Measure
the unit’s air volume (cfm) and compare it with its
rated air volume. If the air volume is off, adjust the
belts and drives (KSFB) or speed controller (KSFD)
until the specified air volume is reached.
The most accurate method for measuring the air
volume is a pitot traverse method downstream of
the blower. Other methods can be used, but should
be proven and accurate.
Maintenance
V-Belt Drives (KSFB only) – V-belt drives
must be checked on a regular basis for wear, tension,
alignment and dirt accumulation. Check the alignment
by using a straight edge across both sheaves and
the tension by measuring the deflection in the belt as
shown.
• Improper belt tension and/or misaligned sheaves
lead to premature and frequent belt failures.
• Do not pry belts on or off the sheave. Loosen belt
tension until belts can be removed by gently lifting
them off of the sheaves.
• When replacing V-belts on multiple groove drives,
all belts should be changed to provide uniform
drive loading.
• Do not install new belts on worn sheaves. If the
sheaves have grooves worn in them, they must be
replaced before new belts are installed.
Wheels – Wheels require 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 proper operation.
Filters – Filter maintenance is generally limited
to cleaning and replacement. The filters in the unit
should be inspected at least every three (3) months.
Depending on the environment, filters could require
WARNING
Changing the belts or drives can significantly
increase the amp draw of the motor. If changes
are made to the drives or belts, the amps must be
checked to assure no over-amping.
Deflection = Belt Span
64
Belt Span
FAN MOTOR FAN
MOTOR
changing or cleaning more or less often.
Aluminum mesh filters can be washed in warm soapy
water. An adhesive spray can be added to increase
the filter efficiency.
• Be sure to reinstall filters with the airflow in the
correct direction. An airflow direction arrow is
located on the side of the filters.
• Replacement filters should be from the same
manufacturer and be the same size as the original
filters provided with the unit.
Motors – Motor maintenance is generally limited to
cleaning and lubrication (where applicable).
Cleaning should be limited to exterior surfaces only.
Removing dust and grease build-up on the motor
assures proper motor cooling.
Motors supplied with grease fittings should be
greased in accordance with the manufacturer’s
recommendations.
• Greasing of motors is only intended when fittings
are provided. Many fractional horsepower motors
are permanently lubricated and will not require
additional lubrication.
CAUTION
Do not allow water or solvents to enter the motor or
bearings. Under no circumstances should motors or
bearings be sprayed with steam, water or solvents.
Maintenance Details
Unit Model Number _______________________________
(e.g. KFSB-115-H25)
Unit Serial Number _______________________________
(e.g. 04C99999 or 10111000)
Start-Up Date _______________________________
Start-Up Personnel Name __________________________
Start-Up Company _______________________________
Phone Number
_______________________________
Pre Start-Up Checklist –
check boxes as items
are completed.
o Check tightness of all factory wiring connections
o Hand-rotate blower to verify free rotation
o Verify supply voltage to the main disconnect
Start-Up Blower Checklist –
refer to IOM for
further detail.
o Check line voltage L1-L2 __________
L2-L3 __________
L1-L3 __________
o Check blower rotation
o Check for vibration
o Supply fan RPM _________ RPM
o Motor nameplate amps _________ Amps
o Actual motor amps _________ Amps
o Actual CFM delivered _________ CFM
WARNING
Disconnect and lock-out all power before performing
any maintenance or service to the unit. Failure to do
so could result in property damage and serious
injury or death.