Plastec Adjustable Dampers - Manual (Page 20)

PL ASTEC VENTILATION, INC.
Installation, Operation & Maintenance Manual
ILLUSTRATIONS
ATTACHMENT OF PLASTEC FAN TO WEATHER HOOD
Rotation and Discharge for Centrifugal Fans
S TANDARD O PTIONAL F IELD A DJUSTABLE P OSITIONS
Notes:
(1) Direction of rotation is determined from the drive side of fan.
Standard position is up-blast CCW 360.
(2) On single inlet fans, drive side is always considered as the
opposite fan inlet.
1. The motor feet should point vertically upwards for
attachment to the underside of the hood top. Ensure
that the fan discharge is correctly orientated in rela-
tion to the motor feet.
2. It is recommended that the motor is connected to
the disconnect switch prior to assembly of motor
and weather hood, otherwise access to the termi-
nals may be difficult.
3. Insert the four bolts into the holes in the weather
cover. Prevent them from falling out by fitting the
barbed washers.
4. Secure weather hood to the motor by means of
nuts, large washers and lock washers. This is best
accomplished by placing the fan housing on a hori-
zontal surface with the motor shaf t vertical, then
introduce the holes in the hood to the bolts you have
fitted to the motor feet.
5. Ensure that the weather hood is installed in an up-
right position and that the drain holes in the base
panel are clear.
Nu
t
Loc
k W
asher
W
asher (flat)
Barbed Washer
ቢ
ባ
ቤ
Drain Holes
– 19 –
July 2012