Page 23
Dryer Installation with Multiple Exhaust
DRYER INSTALLATION
WITH MULTIPLE
EXHAUST
EXAMPLE
For Exhaust Duct more than 14 feet (5 m) and 2 elbows
equivalent and more than 0.3 inches (8 mm) static pressure.
(See illustration on previous page.)
1. Make-up air from outside building may enter enclosure from
top or side walls.
(See Dryer Make-up Air Requirements Chart)
2. Use constant diameter duct with area equal to the sum of dryer
duct areas.
EXAMPLE:
6-8 inch (153-204 mm) diameter duct = 1-19.6 inch
(26-498 mm) diameter duct in area. Use 20 inch (508 mm)
diameter duct or diameter to match tube-axial fan.
3. Enclosure (plenum) with service door. This separates the dryer
air from room comfort air. If dryers use room air instead of
outside air, the heat loss can be another 25 Btu/h (6.3 kcal/h)
for each cubic foot per minute (cfm) used.
4. Zero inches clearance to combustible material allowed on sides
and at points within 4 inches (102 mm) of front on top.
5. Heat loss into laundry room from dryer fronts
only
is about
60 Btu/h (16 kcal/h) per square root.
6. Flange mounted, belt driven tube-axial fan.
Fan must be run
when one or more dryers are running.
See suggested
Automatic Electrical Control Wiring Diagram on previous page.
Must meet local electrical codes. Fan air flow (cfm) is equal to
sum of dryer air flows, but static pressure (sp) is dependent on
length of pipe and number of elbows.
7.
Barometric Bypass Damper
- Adjust to
closed flutter
position
with all dryers and exhaust fan running.
Must be
located with enclosure.
CAUTION
Never
install hot water heaters or other gas appliances in
the same room as dryers.
Never
install cooling exhaust fans
in the same room as dryers.
Summary of Contents for HD150.1
Page 10: ...Page 10 150 lb Gas Fired Dryer Illustration ...
Page 13: ...Page 13 Gas Piping Installation Illustration ...
Page 15: ...Page 15 150 lb Steam Heated Models Illustration ...
Page 22: ...Page 22 Dryer Installation with Multiple Exhaust Illustration ...
Page 30: ...Page 30 Two Timer Models Figures 1 2 and 3 Illustrations ...
Page 38: ...Page 38 DIRECT SPARK IGNITION OPERATION FLOW CHART ...
Page 42: ...Page 42 Basket Alignment for 150 lb Dryers Illustrations ...
Page 44: ...Page 44 Shimming the Basket and Spider Assembly Illustration ...
Page 67: ...Page 67 ...