Page 19
SGH/SCH036, 060, 120, 240
BLOWER ASSEMBLY (SG/SC 240)
TO INCREASE BELT TENSION
1-Loosen four screws securing blower motor to
sliding base.
2-Turn adjusting front and rear tension adjusting
screws to the right, or clockwise, to move the
motor upward and tighten the belt.
3-Tighten four screws.
TO INCREASE CFM
LOOSEN ALLEN SCREW &
TURN PULLEY CLOCKWISE
TO DECREASE CFM
TURN PULLEY
COUNTERCLOCKWISE
LOOSEN FOUR
SCREWS TO AD
JUST BELT TENSION
BLOWER
MOTOR
REMOVE SCREWS TO SLIDE
BLOWER ASSEMBLY OUT OF UNIT
LOOSEN SCREWS TO
ADJUST BELT TENSION
PULLEY
ALLEN
SCREW
BELT TENSION
ADJUSTING SCREWS
BLOWER
ASSEMBLY
SLIDING BASE
PULLEY
MOTOR
ALLEN
SCREW
SIDE VIEW
FIGURE 23
FIGURE 24
LOCATION OF STATIC PRESSURE READINGS
SUPPLY AIR
READING
LOCATION
SUPPLY
RE
TURN
INSTALLATIONS WITH DUCTWORK
SUPPLY
RE
TURN
INSTALLATIONS WITH CEILING DIFFUSERS
MAIN
DUCT RUN
FIRST BRANCH
OFF OF MAIN RUN
DIFFUSER
ROOFTOP UNIT
ROOFTOP UNIT
SUPPLY AIR
READING
LOCATION
RETURN AIR
READING LOCATION
RETURN AIR
READING
LOCATION
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