Tjernlund LB1 Dryer Duct Booster 8504142 - Manual

DESCRIPTION & PURPOSE
The Dryer Duct Booster ® , Model LB1, has been specifically designed to boost residential capacity clothes dryer duct exhaust veloci-
ties where dryer duct runs exceed 25 equivalent feet. Proper exhaust velocities will reduce drying times, save energy and prevent lint
buildup in the dryer duct. The LB1 is controlled by an electronic Pressure Response Control (PRC) for automatic operation. The LB1
utilizes galvanized steel construction, a reverse inclined, particulate handling impeller that is guaranteed not to clog with lint and
an externally mounted PSC motor for trouble-free operation.
SPECIFICATIONS & COMPONENTS
INSTALLATION RESTRICTIONS
The LB1 must be installed in compliance with your local building codes. Verify compliance before installing this unit.
The LB1 must be installed in an area in which ambient air temperatures are between -20° F and 140° F
(-29° C and 60° C) and ambient humidity does not exceed 85% relative humidity.
Do not install the LB1 in a position where dryer exhaust temperatures exceed 175° F (80° C) at LB1 inlet.
The dryer duct in which the LB1 is installed must terminate with a dryer vent hood with a damper.
Not recommended for dryer duct runs exceeding 100 equivalent feet. Equivalent feet equals linear feet
plus 5 additional feet for each 90
O elbow and 2.5 feet for each 45 O elbow.
Do not install the the LB1 with the discharge facing down, (See Diagram A).
Do not install the LB1 in an orientation where the sensing tube port might fill
with condensation, (See Diagram B).
TJERNLUND PRODUCTS, INC.
1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE (800) 255-4208 • (651) 426-2993 • FAX (651) 426-9547
Visit our web site • www.tjernlund.com
READ OWNERS INSTRUCTIONS CARE-
FULLY PRIOR TO INSTALLATION.
THESE INSTRUCTIONS MUST REMAIN
WITH EQUIPMENT. DO NOT DESTROY.
DRYER DUCT BOOSTER® FAN
MODEL LB1
MODEL LB1
Blower: 160 cfm
Motor: 115 Volts ~ 60 Hz
0.80 amps maximum
Impeller: Reverse inclined, particulate handling
Components: (1) LB1 wired fan assembly
(1) 16 gauge galvanized steel mounting bracket
(1) mounting hardware packet
©2008 TJERNLUND PRODUCTS, INC. ALL RIGHTS RESERVED P/N: 8504142 REV A 0508
OUTLET
INLET
4"
10.75"
6.25"
4"
14"
10.5"
For Residential Capacity Clothes Dryers
56826
UL507
CSA 22.2 NO. 113-M
DIAGRAM B
DO NOT INSTALL LB1 IN A
POSITION WITH THE SENSING
PORT AT THE BOTTOM OF
DRYER DUCT WHERE CON-
DENSATION CAN POOL IN
SENSING TUBE PORT.
DIAGRAM A