Standard Construction Features - Greenheck USGF Brochure & Specs

Standard
Construction Features
Fan Shaft - Is 1-inch minimum in diameter and is
1
precisely sized, ground, and polished so the first
critical speed is at least 25% over the maximum
operating speed, which results in longer fan life.
2 Bearings - Lubricatable cast pillow block and are
air handling quality extended life L10 > 100,000
hours (L50 average life > 500,000 hours)
3 True Vibration Isolation
and reduces vibration, which increases the fans
life since true vibration has no steel to steel
contact.
4 Clean Out Port - Allows the outside of the wheel
to be cleaned through a four-inch diameter
removable plug in the windband.
5 Non-Stick Coated Steel Wheel
weight steel wheel with a dry lubricate
coating eliminates imbalance in heavy grease
applications. The steel wheel is a backward-
inclined, non-overloading centrifugal type.
6 Drain Trough - All grease and water is collected
at one-point for easy disposal.
7 Curb Cap with Mounting Holes
mounting holes in the steel curb cap to ensure
correct attachment to the roof.
Hinged Curb Cap with Cables
8
to tilt away for access to wheel and ductwork
for inspection and cleaning. Shipped for field
assembly.
9 Leakproof Construction
windband to curb cap. Assures no grease will
leak onto roof through the fan's seams.
- Lowers sound levels
- Heavy
- Prepunched
- Allows entire fan
- One-piece fully welded
4
8
6
Drive Assembly - Dual belts, pulleys, and keys are
10
oversized 150% of driven horsepower. Machined
cast steel pulleys are adjustable for final system
balancing. Belts are static free and oil resistant.
Motor Cover - Is easily removed for access to the
11
steel motor compartment and drive assembly.
Powder Coated - Unit is constructed of a minimum
12
of 16 gauge galvaneal steel. Entire unit is powder
coated with a chemical resistant Permatector
finish.
13 Motor - Carefully matched to the fan load and is
mounted out of air stream.
Windband - Unique spun from galvaneal steel
14
achieves superior strength & consistent material
thickness.
15 Nema-3R Disconnect Switch Mounted & Wired
Motor and switch are prewired to specified voltage.
Motor Cooling Tube
16
achieved through positive motor cooling with fresh
outside air being continuously drawn through the
large breather tube directly over the motor.
Name Plate - Exact model and serial identification
17
on a permanent stamped aluminum plate.
18 Heat Baffle - Extends motor life by reducing the
amount of heat that penetrates through the bottom
of the motor support pan.
Lifting Lugs - Located under motor compartment
19
for ease of lifting unit during installation.
1
2
3
19
18
9
7
- Maximum motor life is
11
10
12
14
13
16
17
5
-
15