Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 13)

13
Lifting
Check the weight of unit to determine the safety of the
lifting method. (See the mechanical drawing supplied
with the equipment for unit weight.) Ensure that the
lifting device is suitable for the task. If necessary, plan
for a hoist, crane or forklift with appropriate rating to
move the units. For lifting, use hoist rings provided.
Cooling
• Mount the controller and panel vertically.
• Option panels rely on the ambient air
for cooling. It is important to observe the
limitations on ambient air temperature.
Derating start above 104 o F (40 o C) and 3300
feet elevation above sea level.
Mechanical Installation • Top and bottom clearance is required for
cooling (Figure 3-2). Generally, 4 to 10
inches (100 to 250 mm) minimum clearance
is required, depending upon the hp of the
unit. See the mechanical drawing shipped
with the unit for specific requirements.
4.0 in min.
CEILING
FLOOR
AIRFLOW
4.0 in min.
AIRFLOW
Figure 3-2. Cooling Airflow
Figure 3-3. Typical Unit Components
Input power panel
Master drive
Follower 1
Follower 2
Input power raceway to VFDs
Drive disconnect
Mains (line)
disconnect
Hoist ring
Lift unit by
hoist ring only