Greenheck SBCE, Руководство пользователя

Страница: 3 / 44

3
Model Comparison
Level 2 Level 1
Level 3
Fabricated
Level 3
Cast Aluminum
Level 2 Level 3
Level 1
Sizes 8 to 10
Level 1
Sizes 12 to 24
L Type Propeller:
• Swept, steeply pitched blade
design.
• Propellers typically run at lower
RPMs and generate low sound
levels.
• The best selection for sound
critical applications or
applications that require the
best combination of both air and
sound performance.
• Typically used when the static
pressure is 0.5 in. wg
(125 Pa)
or less.
H Type Propeller:
• Straight, moderately pitched
blade.
• Designed for applications where
static pressures are above
0.5 in. wg
(125 Pa)
.
• These propellers typically run
at higher RPMs and generate
slightly higher sound levels than
the “L” propellers.
Belt Drive Blade Designs
Model Comparison
Models
S, SC, SB
and SBC
A
vailable Size Range (inches)
Location Mounting Airflow Application
Drive
Type
Propeller
(blade) Type
Performance
Outdoor Indoor Roof Curb Base/Floor Hanging W
all
Ceiling Mounted Exhaust Supply Reversible Recir
culate
General/Clean Air Contaminated Air Spark Resistant Gr
ease (UL 762)
Smoke Contr
ol (UL)
High Wind (150 mph) High T
emp (above 200°F
)
Belt Dir
ect
Level 1 - L or H type Level 2 - L or H type Level 3 - L or H type Level 3 - Cast Aluminum Maximum V
olume
(cfm) Maximum Static Pr
essur
e
(in. wg)
SE, SS, SR - 1 8 - 24
       

 
6,700 0.75
SE, SS, SR - 2 16 - 54
         
45,600 1
SCE, SCS, SCR - 3 24 - 54
          
51,000 1
SBE, SBS, SBR - 1 20 - 54
         
30,000 0.75
SBE, SBS, SBR - 2 20 - 60
         
53,000 1
SBE, SBS, SBR - 3 24 - 72
         
86,900 1
SBCE, SBCS, SBCR 24 - 72
        

  
87,000 1
Note: 
-
Cast aluminum blades and aluminum hub are spark resistant.
Direct Drive Fan Selection
Three propeller and drive frame combination levels are available with either
a L or H type propeller. Models SE1 and SS1 are designed for smaller size
applications where lower volumes and static pressures are found. Models
SE2, SS2, SCE3 and SCS3 are designed and constructed for applications
with higher volumes and static pressures.
Belt Drive Fan Selection
Three propeller drive frame construction levels are available with either a
L or H type propeller. The application requirements for sound and static
pressure determine propeller type. Propellers are available in fabricated
steel, fabricated aluminum or cast aluminum.
L Type H Type
C in model name indicates cast aluminum blades and hub.