DewStop FS-875 User manual

4
12
35
CONTROL
WHITE BLACK RED
GROUND
BLUE
120V LINE AC
WALL ENCLOSURE
LIGHT
FIGURE #1
FAN
FIGURE #2
FIGURE #3
ENGLISH
LANGUAGE
MANUAL
FS-875
FS-3875
Bath Fan Timer Control
with Light Control
ADJUSTABLE
FAN TIMER
(D.) MOUNTING IN WALL ENCLOSURE
1. Attach wires (as shown in FIGURE #1).
WARNING
Turn OFF circuit breaker or remove fuse(s) and test
that power is OFF before wiring. Wiring this control
live can cause serious risk of electrical shock
and/or damage the control, voiding the warranty.
FOR SAFETY, THIS PRODUCT MUST BE
INSTALLED IN A GROUNDED WALL ENCLOSURE. If
you are unfamiliar with methods of installing
electrical wiring, secure the services of a qualified
licensed electrician. USE ONLY COPPER WIRE, DO
NOT use aluminum wire with this device.
IMPORTANT
Read each step carefully and perform in sequence.
This control will not work or will become damaged
if wires are connected incorrectly. To prevent
damage, connect this control exactly as shown in
the installation diagrams, otherwise warranty will
be voided. Prior to wiring, straighten or clip ends of
wire such that ends of each wire are straight (if
using this control to replace an existing switch).
Strip wire insulation at the end of each wire to
expose 5/8 inch (16 mm) of copper. Where
instructed to make a connection, twist ends of
stripped wires together and twist a proper
connector clockwise until secure.
(C.) INSTALLATION STEPS
1. WARNING
To avoid fire or risk of electrical shock, turn OFF
power at circuit breaker or disconnect fuse. Test the
power is OFF before you begin wiring.
2. BEFORE YOU MOUNT THE CONTROL
(new installation) Install control in a 3½ inch deep
single-gang or multi-gang electrical wall enclosure.
OR (replacement of existing switch) remove
existing wall plate and switch device being
replaced.
3. ATTACH POWER WIRE, LIGHT WIRE, AND
FAN WIRE
Attach 120V AC 60Hz 3-wire power (Hot / Neutral /
Ground) inside the wall enclosure with a minimum
of 6 inch leads. Attach fan three wire leads inside
the wall enclosure also with minimum 6 inch leads.
If an existing power connection is used in an
existing wall enclosure you must confirm proper AC
120V Hot / Neutral / Ground are available.
4. CONNECT WIRING
General instructions for all configurations:
Make sure the wall enclosure, fan, light, and
control are properly grounded. (See FIGURE #1).
Make sure ground wire is securely fastened. Tighten all
ground screws or wire nuts securely. Use the proper
sized wire nut for #14 or #12 wire. Make sure to strip
back the copper wire 5/8 inch and twist wire and
nut clockwise.
(A.) ABOUT
This timer is designed to give you all the options, all the
control you need, to make sure your bathroom, laundry
room, sun room, or spa room gets all the ventilation it
should have. It's really two timers in one: A countdown timer
and a fresh home / Minutes Per Hour (MPH) timer ‒ and,
best of all, the two timers work together. The countdown
timer can be set anywhere from 5 to 60 minutes, and it
activates any time you manually turn the fan on. The MPH
timer can be set to anywhere from 0 to 60 minutes, and it
runs your fan for a set time every hour to expel stale air and
help you maintain good indoor air quality (just the thing for
complying with local indoor air quality standards, such as
ASHRAE 62.2). The MPH timer also sees when you've
used the countdown timer and knows not to run the fan for
a while if you've already done it. If you want to manually
shut the fan off when the MPH timer is running, you can do
that too, just by pressing the fan on/off button.
(B.) INSTALLATION INSTRUCTIONS
CAUTION
1. Use only a 120V AC 60Hz power supply
connection.
2. For indoor use only.
3. Do not exceed this control’s maximum electrical
load ratings, as indicated on the product label.
4. Must be installed and used in accordance with
your local electrical codes.
5. If a bare copper or green ground connection is
not available in the wall box, contact a
licensed electrician for installation.
6. For use with permanently installed 120V AC
powered fans only.
7. Use only #14 or #12 copper wire connections.
3. Attach the wall plate (See FIGURE #3).
2. Tuck wires into wall enclosure and fasten control to
the wall enclosure with the two screws provided
(See FIGURE #2).
Seattle, WA, USA
Go To Research
Technologies, Inc.
from

10
78
911
6
FIGURE #5
INCLUDED TOOL
Use to remove cover and
adjust settings dials.
BLUE LED LIGHT
TIMER SETTINGS
FAN ON/OFF
FIGURE #4
LIGHT ON/OFF
(E.) CONTROL FUNCTIONS
(J.) TESTING THE CONTROL
1. After you have completely installed this control,
selected your timer settings, and attached the wall
plate on the control, you can turn on the breaker to
apply power.
WARNING: If the breaker trips or the fuse blows,
STOP and call a qualified electrician to investigate
the problem. Turn the breaker OFF until the
problem has been corrected.
2. Press the Fan ON/OFF button to see the fan turn
ON, press the button again to see the fan turn OFF.
Do the same for the Light ON/OFF button.
ELECTRICAL SHOCK WARNING:
This control is an automatic ON device. At no time
should a person work on the fan/light or any
appliance connected to this control without the
electrical circuit breaker or fuse switched OFF. One
of the control’s timers could turn ON the attached
device while the work is being performed. Always
disconnect the AC power before any work is done to
any part of the circuit this control is connected to. If
you do not understand this warning seek the
services of a qualified licensed electrician.
(I.) HOW BOTH TIMERS WORK TOGETHER
Credits: The MPH timer is also programmed to give
you "credits" for manual use. For example, if you
manually run the fan for 10 minutes, and the MPH timer
is set to 20 MPH, then the MPH timer will only run your
fan for 10 minutes over the next hour, because you've
already taken care of the rest. And this works within a
rolling 3 hour window of time. For example, if the MPH
timer is set to run your fan for 10 minutes per hour, and
you run your fan manually for 40 minutes, the MPH
timer will take 30 of the 40 minutes (discarding the
extra 10 minutes) and recognize that it doesn't need to
run the fan for the next three hours. And, if you run your
fan for 40 minutes again sometime within the next 3
hours, the MPH timer will roll that forward and again not
run your fan for the next 3 hours, starting from this
latest manual use.
Manual ON: If the MPH timer has your fan ON when
you want to use the countdown timer for a shower or
bath, pressing the "Fan ON/OFF" button twice will
cancel the MPH timer and start the countdown timer in
it's place.
Manual OFF: If the MPH timer has your fan ON, and
you manually turn it OFF, that cancels out the MPH
timer for the hour (the MPH timer will resume normal
function after one hour).
Blue LED Light: Lets you know when your fan is on
(especially useful for fans with low sound levels).
Light ON/OFF: Turns light ON and OFF.
Timer Settings: Countdown timer (left) and minutes
per hour (MPH) timer (right) settings (hidden behind a
removable cover ‒ see page 7 for details).
Fan ON/OFF: Turns countdown timer ON and OFF
(can be used to temporarily override the
MPH timer ‒ see page 9 for details).
(F.) CHANGING THE TIMER SETTINGS
By default, this control comes with the countdown timer
set to 30 minutes, and the MPH timer set to 0 minutes.
To change the settings, remove the "Timer Settings"
cover by taking off the face plate and then inserting the
end of the included tool (or a non-metal tool of your
own) into the two holes on either side of the control
(see FIGURE #5). Use the included tool to turn the
settings dials. The countdown timer can be set between
5‒60 minutes. The MPH timer can be set between
0‒60 minutes. Once you change a setting, the changes
will take effect after the next ON/OFF cycle, so it’s
recommended that you turn your fan ON then OFF
after you make a change to the settings.
(G.) COUNTDOWN TIMER
Pressing "Fan ON/OFF" switches the fan
(and the blue LED light) ON and OFF.
When the fan is turned ON manually, the
countdown timer will run your fan for your
selected period of time, then shut your fan
OFF for you. For optimal use, we
recommend adding together the time it
takes you to shower with the time it takes
your bathroom to dry off after you shower,
then using that total as your setting for this
timer.
(H.) MINUTES PER HOUR (MPH) TIMER
This timer runs your fan for a selected
amount of time every hour, to help ensure
good indoor air quality (it's also designed to
help you more easily comply with indoor air
quality standards). For example, set to "0",
the MPH timer will never turn on. Set to
"10", the MPH timer will turn your fan on
10 minutes every hour. Set to "60", the
MPH timer will run your fan all the time.
(L.) TWO-YEAR LIMITED WARRANTY
Go To Research Technologies, Inc. (GTR) warrants to the
original consumer purchaser of its products that such products
will be free from defects in materials & workmanship for a
period of two years from the date of original purchase. There
are no other warranties, express or implied, including but not
limited to, implied warranties of merchantability or fitness for a
particular purpose. During this two-year period, GTR will, at its
option, repair or replace, without charge, any product or part
which is found to be defective under normal use & service.
This warranty does not extend to fluorescent lamp starters &
tubes. This warranty does not cover (a) normal maintenance &
service or (b) any maintenance or repair, faulty installation or
installation contrary to recommended installation instructions.
The duration of any implied warranty is limited to the two-year
period as specified for the express warranty. Some areas do
not allow limitation on how long an implied warranty lasts, so
the above limitation may not apply to you. GTR’s obligation to
repair or replace, at GTR’s option, shall be the purchaser's
sole & exclusive remedy under this warranty. GTR shall not be
liable for incidental, consequential, or special damages arising
out of or in connection with product use or performance. Some
areas do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation may not apply
to you. This warranty gives you specific legal rights, & you may
also have other rights, which vary from area to area. This
warranty supersedes all prior warranties. To qualify for
warranty service, you must (a) notify GTR at the address
stated below or via our website at www.DewStop.com, (b) give
the model number & part number identification, & (c) describe
the nature or any defect in the product or part. At the time of
requesting warranty service, you must present evidence of the
original purchase date.
Go To Research Technologies, Inc.
www.DewStop.com