ReVent RVSH90 Guide D'installation page 27

Q: Why do the windows and mirrors fog even when the FAN is running?
A: If windows and mirrors are very cold, condensation can still form on those
surfaces. If the bathroom is sealed tightly, replacement air may not be entering the
room fast enough to displace moist air. You need a gap under the bathroom
entrance door to allow air to enter the bathroom. If your home uses 3 inch diameter
ducting, upgrading the duct pipe to 4 inch diameter can greatly increase the airflow.
The vent pipe length should be 10 feet or less with minimal bends (See PAGE 6).
Ensure that the vent pipe is not blocked.
Q: My FAN is operating, but the air is moving slower than normal.
A: Check for obstructions in the ductwork. A common problem is debris blocking the
roof cap or outside wall vent. Older homes may have 3 inch diameter ducting and
changing the duct pipe to 4 inch diameter can greatly increase airflow.
Q: Why is there water dripping from my FAN?
A: Dripping water is typically condensation from a cold vent pipe. Insulating the
ductwork and FAN housing can help solve condensation problems. Running the
FAN longer will ensure moisture is completely removed from the duct. Another
possibility is rain entering the vent pipe through the roof vent opening.
Q: I have installed my FAN and it is not working, what do I do?
A: Make sure the black and white plug-in connector on the FAN is clicked into
place. Check all electrical connections like wire nuts and quick connects. Make
sure the circuit breaker is turned ON after completing all the electrical work. If you
have any concerns consult a licensed electrician.
(Control)
Q: My existing switch only has two wires. How do I properly connect the CONTROL
to the FAN?
A: You will need to test these wires with a voltage tester to determine which one is
power and which one goes to the fan. The black wire on the CONTROL connects to
the wire that is tested to be the incoming power. The red wire on the CONTROL
connects to the wire that is tested and confirmed to connect to the FAN. You will
need a neutral and a ground. Please refer to PAGES 20-22 for instructions on how
to properly wire the CONTROL. If you have any concerns, we suggest consulting a
licensed electrician.
Q: Will the CONTROL still work without a neutral wire?
A: A neutral is required to operate the CONTROL. Generally, there will be a neutral
wire available in your junction box (wall box). Older homes or homes where code
was not followed can make it a problem to find a neutral. If that's the case for you,
then you'll need an electrical testing device to find a neutral wire. We suggest you
use a qualified licensed electrician to do this work.
Q: How do I set the CONTROL's sensitivity for my specific bathroom?
A: This is easy, see PAGES 23-24 for instructions on how to do this.
Q: The FAN comes on too early or too frequently. How can I fix this?
A: This means the CONTROL's sensitivity is set too high. Simply turn the sensitivity
dial counterclockwise slightly to reduce the sensitivity. We suggest small
increments at a time. See PAGES 23-24 for more details.
Q: The FAN doesn't come on quickly enough. How do I fix this?
A: If you want the CONTROL to come on faster, rotate the sensitivity dial clockwise
to make the CONTROL more sensitive. Move the dial in small increments until you
find the right setting. See PAGES 23-24 for more details.
Q: Is it possible to disable the humidity sensing?
A: Yes! To disable the humidity sensing, first make sure the FAN is off. Then push
down and hold the button on the CONTROL, releasing the button after 15 seconds.
To enable the sensor again, simply repeat the process.
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