Tjernlund SD14 User Manual

TJERNLUND PRODUCTS, INC.

1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE [phone] • [phone] • FAX [phone]
Visit our web site • www.tjernlund.com

READ OWNERS INSTRUC-

TIONS CAREFULLY PRIOR

TO INSTALLATION.

THESE INSTRUCTIONS MUST

REMAIN WITH EQUIPMENT.

DO NOT DESTROY.

SURE DRYTMSHOWER DRYING SYSTEM

MODEL SD140

©2012 TJERNLUND PRODUCTS, INC. ALL RIGHTS RESERVED P/N: 8504188

DESCRIPTION

The Sure Dry™ SD140 Shower drying system quietly circulates dry air from an adjoining room into the shower enclosure to efficiently
dry caulk, grout, tile and glass surfaces. Sure Dry Systems minimize mold/mildew growth and grout damage by accelerating surface
drying time up to 80%.

SPECIFICATIONS & COMPONENTS

GENERAL INFORMATION

Every Tjernlund Sure Dry™ fan is electrically factory line tested before shipment.
After opening carton, inspect thoroughly for shipping damage. Impellers 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.

INSTALLATION RESTRICTIONS

The Sure Dry™ System must be installed by a qualified installer in accordance with these instructions and all local codes or in their
absence in accordance with the latest editions of the International Residential Code and International Electrical Code. Improper installa­tion can create a hazardous condition such as fire, electric shock or personal injury. To reduce these risks significantly, use this device
only in the manner intended by the manufacturer. If you have questions about proper usage of this device, call Tjernlund Products at
800-255-4208 or email us at [e-mail].

MODEL SD140

Blower: 140 cfm
Motor: 120 Volts ~ 60 Hz; 0.45 amps
Rough In: Blower rough opening: 8 1/4” Height x 10 1/4” Width

Supply Elbow rough opening through tile: 4 3/4" diameter

Digital Timer: Decorator switch plate style fits single or multi-gang boxes, 5 settings - White

FIGURE 8061031

MODEL SD140

5 1/8" 2 1/8"

7 1/4"

8 1/4"

3 7/8"11 5/16"

11 5/8"

3/4"

7"

10 1/4"

9 1/2"

FIGURE 8061030

4 1/2" 3 1/2"

7"

4"

4 1/2"

INTAKE GRILLE, WHITE, WITH SCREWS

11 3/4"

11 1/8"

9 3/4"

5/16"

FIGURE 8061028

5/16"

3 15/16"

3 1/2"

5 1/2" 1 1/4"

SD140 BLOWER HOUSING

SD140 INTAKE GRILLE - WHITE

SHOWER SUPPLY GRILLE

WHITE - (COLOR OPTIONS AVAIL.)

SHOWER SUPPLY ELBOW

Always disconnect the Sure Dry™ Fan or timer from its power source before installation and servicing.
IMPORTANT: An in depth investigation of the wall layout is required prior to installation. Avoid a

stud wall section that is a path for plumbing supply lines, drains and vents. Avoid a stud wall sec­tion that is insulated or being used as a return air duct for a forced air system. Pick the best location
based on clear routing of the supply duct, sound transfer concerns, electrical supply routing and
air drying paths. Make sure the wall cavity is at least 10 1/2" wide between inside stud edges.

• The Sure Dry™ may not be used to exhaust hazardous or explosive materials or vapors.

• The Sure Dry™ may not be installed in a ceiling.

• The Sure Dry™ may not be installed in an outside wall.

• The Sure Dry™ may not be installed in a wall rated as a “fire wall.”

• The Sure Dry™ may not be used to move air from one floor (story) to another floor.

• The Sure Dry™ may not be used in a window.

Disrupt power at circuit breaker to outlets & switches from the electrical power source you will be working
with.

When manually sawing through sheetrock stop if you detect the saw blade coming in contact with any wiring or
plumbing. Investigate further to determine if it is possible to safely continue to use this wall cavity space. Switch to
another stud wall cavity if necessary.

BEFORE YOU START:
Determine the stud wall section that you want to use to mount the SD140 in. IMPORTANT: Wall studs must be
spaced a minimum of 10 1/2” between inside edges, (See Diagram A). NOTE: If attempting to install the SD140

with an existing shower and not performing a complete remodel or retrofit, mark inside edges of studs the Sure
Dry™ will be installed between and verify there is at least 10 1/2” between the inside edges. Slide a stud finder
down the wall between the studs to verify the stud wall cavity is completely open, (See Diagram B).

TOOLS REQUIRED

Sheetrock Saw Drill Tin Snips Phillips & Straight Screwdrivers Level Tape Measure Utility Knife or Scissors Wire Stripper

REMODEL OR NEW CONSTRUCTION INSTALLATION

1. When installing the SD140, locate possible installation locations by examining the inside and outside shower areas for non-obstructed
wall stud cavities. Avoid wall stud cavities that have plumbing or electrical wires within them. Pick the best location based on clear
routing of flex duct, sound transfer concerns, electrical supply routing. Make sure the wall cavity is at least 10 1/2" wide between
inside stud edges, (See Figures A & B).

2. On the shower side of the wall before any materials have been fastened to the studs, define where the shower air Supply Grille will
be located. Make sure the height of the Shower Grille is above the highest water level obtainable in the shower. Mount the gray &
white Supply Elbow between 2 studs within the wall cavity chosen in Step 1. Make sure the oval end of elbow points up. The use of
an additional wall framing piece (2 x 4 or 2 x 6) or is required to solidly mount elbow. Mount Supply Elbow above maximum water
level, (See Figure C).

3. In the wall cavity where the supply elbow has been mounted, define a location for the Blower. This location should be towards the top
of the wall cavity but no closer than 3" from the ceiling on the other side of the wall. Once a target location has been determined, find
the center point between the studs and poke a small hole thru the wall and verify the location is acceptable from the other side of the
wall, (See Figure D).

FIGURE A

IMPORTANT: Wall cavity between studs
must be completely open between Blower
and Supply Elbow. Studs must have a
minimum of 10 1/2” between inside edges.

FIGURE B

Wall studs must
have a minimum

of 10 1/2”

between them.

BLOWER
OPENING

IMPORTANT:

Wall cavity

between studs

must be com-

pletely open

between

Blower and

Supply Elbow

FIGURE D

FIGURE EFIGURE C

PICK A STUD WALL CAVITY THAT IS
UNOBSTRUCTED AND ALSO CON­FIRM BLOWER INTAKE LOCATION IS
ACCEPTABLE ON WALL OPPOSITE
SHOWER. POKE A SMALL HOLE
THRU WALL TO DETERMINE IF
BLOWER LOCATION IS SUITABLE.