Tjernlund SD140 Sure Dry Shower Drying System 8504188 - Manual (Page 3)

4. From the Blower side of the wall, locate the small hole created in Step 3 and if ok, position the SD140 Blower cut out template.
Top line of Blower template should not be closer than 3” to the ceiling. Level and tape the template to the wall, (See Figure E).
Use a sheetrock saw with caution to remove sheetrock between template lines, (See Figure F).
5. Remove the Fan assembly from the Blower housing by using a screw driver to pry top flang over 2 Blower case extruded dimples and
set aside for later use. Insert the Blower housing into the hole with the oval supply duct connection facing down and mark the (4) cor-
ner holes with a pencil. Drill out holes with 3/16” bit, carefully tap in wall anchors and secure housing to the wall with screws provided,
(See Figure G).
6. Install the provided flexible oval duct with (2) 1/4 x 3/8”
sharper point self tapping screws on oval Blower hous-
ing flange making sure that screw head is below and
pinches metal ring in flex duct on both sides. Stretch
flex duct down to Supply Elbow and cut to length with a
metal snips. Make sure the duct is stretched and is as
straight a run as possible. Excessive flex duct material
and bends will reduce fan performance and lengthen
shower drying times. Install the flexible oval duct with
(2) 1/4 x 3/8” duller point self tapping screws on Supply
Elbow making sure that screw head is above and
pinches metal ring in flex duct on both sides, (See
Figure H).
SHOWER SIDE FINISHING
1. Finish remodeling the shower including sealing the area around where the elbow enters the shower. Excess pipe from the elbow into
the shower is acceptable at this point. Make sure all tiling and grouting has been completed before moving forward. Place the provided
sheet metal protection plate over the supply elbow extension and tape to tile wall, (See Figure I).
2. Use a reciprocating saw, grinder, dremmel tool, etc., to cut off the elbow extension until it is flush with the metal plate and remove,
(See Figure J). Once metal plate is removed, careful cleanup on Supply Elbow can be done so it is flush with tile.
3. Test fit the Shower Grille. Make sure it can be installed flush to the shower tile surface and make adjustments on Supply Elbow with
grinder or dremmel tool if necessary. Silicone seal the Shower Grille in place using high quality silicone bath caulk. Place large beads
of silicone bath caulk on inlet leading edge of Shower Grille and on outside flange of Shower Grille and insert in Supply Elbow.
Smooth excess caulk bead around Supply Grille and tile, (See Figure K). Rotate Shower Grille louvers in desired direction.
WIRING
The following steps involve electrical wiring and should only be performed by a licensed electrician and / or adhere to all local, state and
national electrical codes.
Locate and install the timer switch preferably by existing exhaust and light switches, while following all local, state and national electrical
codes. The fan unit consumes less than 50 watts when operating so use of existing power circuit for the lights in the shower area is
often times acceptable. MAKE SURE THE POWER CIRCUIT IS OFF BEFORE CONTINUING. A GFI CIRCUIT IS REQUIRED.
FIGURE J FIGURE K FIGURE I
FIGURE G
FIGURE H
FIGURE F