1
Tjernlund Products welcomes your comments and questions. Address all correspondence to:
Customer Service • Tjernlund Products, Inc. • 1601 Ninth Street • White Bear Lake, MN 55110-6794
Call us toll free at 800-255-4208, visit our web site @ www.tjernlund.com or email us at [email protected].
DESCRIPTION
The D-Strat
TM
Series compact, high velocity destratification ceiling fans recirculate trapped air in high ceiling areas to lower heat-
ing costs, extend life of HVAC equipment and promote the comfort of occupants. The compact, 540 CFM high-velocity fan oper-
ates on only 30 watts and reduces the typical temperature differential of twenty degrees or more between ceiling and floor levels
by at least fifty percent. Unlike conventional paddle blade ceiling fans, D-Strat
TM
fans do not have visual moving blades. Discharge
velocity of 2000 FPM moves air effectively in a defined column to the floor level. Operation is quiet at 1.5 sones, ideal for office
areas and other noise sensitive environments. Costs less than 1/2 cent per hour to operate based on average U.S. electrical rates.
Compact design fits between roof trusses affording full access to upper level warehouse storage racking. A heavy-gauge swivel
mount allows fan to be aimed to avoid obstructions, concentrated at works areas or to dry floors in wet entryways.
GENERAL INFORMATION
Each DSF2 is electrically factory line tested before shipment. After opening carton, inspect thoroughly for shipping damage.
Impeller should rotate freely and all electrical wires and connections should be secured. If any damage is found, notify freight
carrier and your distributor immediately and file a concealed damage claim.
NUMBER OF DSF2 FANS NEEDED PER APPLICATION
Destratification fans are constantly fighting warm air that is naturally rising and concentrating
near the ceiling level. As ceiling heights increase so does the volume of stratified air and the
resulting temperature differential compared to the floor level. For this reason the number of
fans we suggest for a given square foot area increases as ceiling heights increase. Use this
table as a guide for the suggested number of DSF2 fans that should be installed to achieve
effective destratification for your application. Space fans evenly with an open path to the floor
from the fan discharge.
Divide Square feet of area to be served by the square feet in table based on ceiling height.
Round to closest whole number for suggested quantity of fans.
Example:
7500 square foot area with 16’ ceilings.
7500/1200 (16 foot ceiling height in table) = 6.25
This application would need 6 DSF2 fans.
DSF2 SPECIFICATIONS
Volts:
115 VAC
Hz:
50/60
Amps:
0.24
Watts:
30
CFM:
540
Thermal Limit:
196°F (91°C)
Unit dimensions with mounting bracket:
Height: 25 ½" Width: 12 1/8" Weight: 21 lbs.
NOTE:
Each DSF2 includes a built in Thermal Limit that will deactivate the DSF2 in the event of fire in the space where the tem-
perature at the DSF2 reaches 196°F (91°C) or greater. This feature is in accordance with fire safety and insurance underwriting.
NOTE:
Each DSF2 includes a Safety Cable that is rated for 100 lbs. The cable is required in some areas of North America where
seismic activity can occur. The cable is easy to install and should be used on all DSF2 installations.
INSTALLATION WARNINGS
READ INSTRUCTIONS CAREFULLY PRIOR TO INSTALLING THE DSF2. DO NOT DESTROY THIS DOCUMENT.
This DSF2 must be installed by a qualified professional installer in accordance with these instructions and the latest edition of the
National Electrical Code(NFPA #70) and any applicable State and Local Codes. If the DSF2 is improperly installed or misapplied,
a hazardous condition such as fire, electric shock or falling parts could result causing bodily injury and/or property damage.
DO NOT
Connect Power to the DSF2 until it is completely installed. Disconnect Power prior to service or maintenance.
DO NOT
use the DSF2 in hazardous environments where the electrical system could provide ignition to combustible or flammable
materials.
DO NOT
use the DSF2 to exhaust or transport hazardous or explosive materials or vapors. Personal injury and/or property dam-
age could result.
DO NOT
handle the DSF2 without hand protection. The DSF2 has rotating parts and may have sharp edges. Hand
protection
should be worn when installing, operating and maintaining the DSF2.
DO NOT
mount the DSF2 less than 7 feet above grade. The DSF2 has unguarded rotating components that potentially could
cause injury if contacted when operating. Mount the DSF2 at least 7 feet above grade and in consideration of occupants to insure
a safe installation.
DO NOT
use the power cord of the DSF2 as a means of supporting the weight or position. Personal injury and/or property damage
may result.
DO NOT
connect power supply until the DSF2 is completely installed. Disconnect power prior to service or maintenance
.
Height to Ft
2
Floor
Ceiling Deck Space/Fan
16 1200
18 1000
20 900
22 800
24 700
