Broan QTXE110H Mode D'emploi

MODEL QTXE110H
HUMIDITY SENSING FAN
READ AND SAVE THESE INSTRUCTIONS
WARNING
TO REDUCE THE RISK OF FIRE,
ELECTRIC SHOCK, OR INJURY TO
PERSONS, OBSERVE THE FOLLOWING:
1. Use this unit only in the manner intended by the
manufacturer. If you have questions, contact
the manufacturer at the address or telephone
number listed in the warranty.
2. Before servicing or cleaning unit, switch
power off at service panel and lock the service
disconnecting means to prevent power from
being switched on accidentally. When the
service disconnecting means cannot be
locked, securely fasten a prominent warning
device, such as a tag, to the service panel.
3. Installation work and electrical wiring must be
done by a qualifi ed person(s) in accordance
with all applicable codes and standards,
including fi re-rated construction codes and
standards.
4. Suffi cient air is needed for proper combustion
and exhausting of gases through the flue
(chimney) of fuel burning equipment to prevent
backdrafting. Follow the heating equipment
manufacturer's guideline and safety standards
such as those published by the National
Fire Protection Association (NFPA), and the
American Society for Heating, Refrigeration
and Air Conditioning Engineers (ASHRAE),
and the local code authorities.
5. When cutting or drilling into wall or ceiling, do
not damage electrical wiring and other hidden
utilities.
6. Ducted fans must always be vented to the
outdoors.
7. Acceptable for use over a tub or shower when
connected to a GFCI (Ground Fault Circuit
Interrupter) - protected branch circuit.
8. This unit must be grounded.
9. When applicable local regulations comprise
more restrictive installation and/or certifi cation
requirements, the aforementioned requirements
prevail on those of this document and the
installer agrees to conform to these at his own
expenses.
10. When performing installation, servicing or
cleaning this unit, it is recommended to wear
safety glasses and gloves.
!
CAUTION
1. For general ventilating use only. Do not use to
exhaust hazardous or explosive materials and
vapors.
2. This product is designed for installation in fl at
ceilings only. DO NOT MOUNT THIS PRODUCT
IN A WALL.
3. To avoid motor bearing damage and noisy and/
or unbalanced impellers, keep drywall spray,
construction dust, etc. off power unit.
4. Please read specifi cation label on product for
further information and requirements.
OPERATION
The humidity control and fan can be operated
separately. Use a 1- or 2- function wall control. Do
not use a dimmer switch to operate the humidity
control or light. See "Connect Wiring" for details.
SENSOR OPERATION
The humidity-sensing fan uses a sophisticated
humidity sensor that responds to: (a) rapid to
moderate (user-adjustable) increases in humidity
or (b) humidity above a user-adjustable set-point
(50%-100% relative humidity). The humidity
sensor may occasionally turn the fan ON when
environmental conditions change. If the fan
continuously responds to changing environmental
conditions, "SENSITIVITY" adjustment may be
required.
MANUAL ON WITH TIMED OFF
The humidity sensing fan has an additional
operation feature. For odor or vapor control, the fan
can be energized by cycling the power switch. Once
the fan has been energized in this manner, it will
remain on for the user-adjustable "TIMER" period
(5 to 60 minutes). This period is factory-set for
20 minutes.
To manually energize the fan:
1. If fan power switch is already ON, proceed to
Step 2; otherwise, turn power switch ON for
more than 1 second.
2. Turn fan power switch OFF for less than
1 second.
3. Turn fan power switch back ON and fan will
turn ON.
SENSITIVITY ADJUSTMENT
The "SENSITIVITY" has been factory set for most
shower applications. However, if the fan is in a tub
area or is being used for dampness control, the
"SENSITIVITY" may need to be increased toward
maximum ("MAX."). If the control is responding
too often to changing environmental conditions,
movement toward less ("MIN.") "SENSITIVITY"
may be required.
To adjust the "SENSITIVITY":
1. Disconnect power at service entrance.
2. Through the grille, locate the screwdriver slot
marked "SENSITIVITY".
3. Using a small, fl at-blade screwdriver, carefully
rotate the "SENSITIVITY" adjustment toward
"MAX." or "MIN."
4. Turn on power and check operation by turning
on the shower or other humidity source until
the fan turns on.
5. Repeat above steps if necessary.
Installer: Leave this manual with the homeowner.
MODEL QTXE110H
BB0014
TIMER ADJUSTMENT
The humidity sensing fan has a "TIMER"
that can be adjusted from 5 to 60 minutes
(factory-set at 20 minutes). This "TIMER"
controls the length of time that the fan
remains ON (a) after the sensor has stopped
sensing a rise in humidity and the humidity level
is below the user-adjustable set-point or (b) after
being energized by cycling the power switch.
To adjust the "TIMER":
1. Disconnect power at service entrance.
2. Through the grille, locate the screwdriver slot
marked "TIMER".
3. Using a small, fl at-blade screwdriver, carefully
rotate the "TIMER" adjustment to desired
setting (from 5 to 60 minutes).
4. Check operation by cycling the power switch as
instructed under "MANUAL ON WITH TIMED
OFF" or by turning on a humidity source until
the fan turns on.
5. Turn humidity source off and time the unit.
6. Repeat above steps if necessary.
CLEANING
& MAINTENANCE
For quiet and effi cient operation, long life, and
attractive appearance - lower or remove grille
and vacuum interior of unit with the dusting brush
attachment.
The motor is permanently lubricated and
never needs oiling. If the motor bearings
are making excessive or unusual noises,
replace the motor with the exact service motor.
The impeller should also be replaced.
SENSOR CLEANING
The humidity sensor is mounted in the grille. The
sensor will operate most reliably when cleaned
occasionally as follows:
1. Disconnect power at service entrance.
2. Remove the grille. Use a dry dustcloth, clean
toothbrush, or lightly vacuum to clean sensor
and grille. DO NOT USE ABRASIVE CLOTH,
STEEL WOOL PADS, OR SCOURING
POWDERS.
3. DO NOT USE cleaning sprays, solvents, or
water on or near the sensor!
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