Titus VAB IOM - Manual (Page 7)

VAB Installation Manual
IOM-VAB-00 06-30-04
7 of 7
Operation and Maintenance
Read and observe the following statements before
operation or maintenance.
DANGER
DISCONNECT ELECTRICAL POWER TO ALL
CIRCUITS BEFORE SERVICING UNIT.
FAILURE TO DO SO MAY RESULT IN PERSONAL
INJURY FROM ELECTRICAL SHOCK OR MOVING
PARTS.
Return Air Filters
Inspect return air filters on a regular basis (at least
monthly). Clean or replace filter(s). Filter can be accessed
from either side of unit.
Caution: Never operate unit without a filter or with
filter access door removed. Damage to blower
motor may result.
Coil
The coil is easily cleaned when dry. To check or clean,
remove blower access panel, filter access door and
filter(s). Use accepted industry methods for cleaning.
Remove all foreign matter from pan and condensate drain
line. Check for rust and holes.
Belt and Pulley
Proper pulley alignment and belt tension must be
maintained at all times.
Reduce speed by adjusting pulley faces so the faces are
further apart.
Increase speed by moving the faces closer together.
Check pulley setscrews and bolts.
Motor
Proper lubrication is essential to long motor life. Use
electric motor oil or SAE20 non-detergent oil. Tighten
motor mount bracket and base bolts.
Note: Avoid over-oiling the motor. If a motor is over-
oiled, the oil may run down the motor shaft and
splatter.
Blower
Periodically check bearing for wear. Replace as required.
Check wheel for dirt accumulation and clean as required.
Abbreviations
The following table lists the abbreviations found within this
document.
Abbrev. Term
ANSI American National Standard Institute
ASHRAE American Society of Heating
Refrigeration Air-Conditioning
Engineers
ASTM American Society for Testing and
Materials
CFM cubic feet per minute
CW chilled water
ETL Environmental Testing Laboratory
fpi fins per inch
fpm feet per minute
HW hot water
IAQ Indoor Air Quality
J-Box Junction Box
lbs pounds
NEC National Electric Code
OD outside diameter
ODP open-drip proof
PSI pounds per square inch
PVC polyvinyl chloride
rpm revolutions per minute
SAE Society of Automotive Engineers
SWT sweat
UL Underwriters Laboratory
wgt. weight