MODEL QTXE110S To register this product visit: Page www.broan.com HUMIDITY SENSING FAN READ AND SAVE THESE INSTRUCTIONS WARNING OPERATION TO REDUCE THE RISK OF FIRE, ELEC- The humidity control and fan can be op- TIMER ADJUSTMENT TRIC SHOCK, OR INJURY TO PERSONS, erated separately. Use a 1 or 2-function This humidity-sensing fan has a “TIMER”. It OBSERVE THE FOLLOWING: wall control. Do not use a dimmer switch is user-adjustable from 5 to 60 minutes and 1. Use this unit only in the manner intended to operate the humidity control or light. is factory-set at 20 minutes. The “TIMER” by the manufacturer. If you have questions, See “Connect Wiring” for details. controls how long the fan remains on (a) contact the manufacturer at the address or SENSOR OPERATION after rise in humidity and (b) humidity level are both below the user-adjustable “SEN- telephone number listed in the warranty. This humidity-sensing fan responds to: 2. Before servicing or cleaning unit, switch SITIVITY” setting or after being energized (a) rapid to moderate humidity increases by cycling power switch. power off at service panel and lock the ser- and (b) humidity above a 50%-100% rela- vice disconnecting means to prevent power tive humidity set-point. (a) and (b) are set To adjust the “TIMER”: from being switched on accidentally. When with “SENSITIVITY” adjustment. Fan may 1. Disconnect power at electrical service the service disconnecting means cannot be occasionally turn on when environmental panel. locked, securely fasten a prominent warning conditions change. If the fan continuously 2. Through the grille, locate the “TIMER” device, such as a tag, to the service panel. responds to changing environmental condi- screwdriver slot. 3. Installation work and electrical wiring must be tions, “SENSITIVITY” adjustment may be 3. Using a small, flat-blade screwdriver, done by a qualified person(s) in accordance required (see section below). carefully rotate “TIMER” adjustment to with all applicable codes and standards, desired setting (5 to 60 minutes). including fire-rated construction codes and STATUS INDICATOR 4. Check operation by cycling power standards. This indicator can only be seen by looking switch as instructed under “MANUAL directly at it. Normal mode is 5-seconds on 4. Sufficient air is needed for proper combustion ON WITH TIMED OFF” or by turning on and off. If it blinks rapidly for 5-seconds and and exhausting of gases through the flue a humidity source until fan turns on. (chimney) of fuel burning equipment to pre- then off, check sensor connections on grille vent backdrafting. Follow the heating equip- and fan housing. 5. Check “TIMER” setting with watch or ment manufacturer’s guideline and safety clock after turning humidity source off standards such as those published by the MANUAL ON WITH TIMED OFF if it was turned on it Step 4. National Fire Protection Association (NFPA), For odor or vapor control, the fan can be en- 6. Repeat above steps if necessary. and the American Society for Heating, Re- ergized by cycling its wall-mounted switch frigeration and Air Conditioning Engineers if one is installed. Once the fan has been (ASHRAE), and the local code authorities. turned on in this manner, it will remain on 5. When cutting or drilling into wall or ceiling, do for the set “TIMER” period. not damage electrical wiring and other hidden To manually energize the fan: utilities. 1. Go to Step 2 if switch is already on; CLEANING & 6. Ducted fans must always be vented to the otherwise, turn switch on for more than outdoors. 1 second. MAINTENANCE 2. Switch off for less than 1 second. 7. Acceptable for use over a tub or shower when For quiet and efficient operation, long life, connected to a GFCI (Ground Fault Circuit 3. Switch back on and fan will turn on. and attractive appearance - lower or remove Interrupter) - protected branch circuit. SENSITIVITY ADJUSTMENT grille and vacuum interior of unit with the 8. This unit must be grounded. “SENSITIVITY” has been factory set for dusting brush attachment. most shower applications. If the fan is in a The motor is permanently lubricated and tub area or is used for dampness control, never needs oiling. If the motor bearings the “SENSITIVITY” may need to be in- are making excessive or unusual noises, CAUTION creased toward maximum (“MAX.”). If the replace the motor/blower wheel assembly. 1. For general ventilating use only. Do not use control is responding too often to changing SENSOR CLEANING to exhaust hazardous or explosive materials environmental conditions, adjustment to- and vapors. The humidity sensor is mounted in the grille. ward less (“MIN.”) “SENSITIVITY” may be The sensor will operate most reliably when 2. This product is designed for installation in required. To adjust the “SENSITIVITY”: cleaned occasionally as follows: flat ceilings only. DO NOT MOUNT THIS 1. Turn power off at electrical service 1. Disconnect power at service entrance. PRODUCT IN A WALL. panel. 3. To avoid motor bearing damage and noisy 2. Remove the grille. Use a dry dustcloth, 2. Through the grille, locate the clean toothbrush, or lightly vacuum to and/or unbalanced impellers, keep drywall “SENSITIVITY” screwdriver slot. spray, construction dust, etc. off power unit. clean sensor and grille. DO NOT USE 3. Using a small, flat-blade screwdriver, ABRASIVE CLOTH, STEEL WOOL 4. Please read specification label on product for carefully rotate “SENSITIVITY” adjust- PADS, OR SCOURING POWDERS. further information and requirements. ment toward “MAX.” or “MIN.” 3. DO NOT USE cleaning sprays, solvents, 4. Turn power on and check operation or water on or near the sensor! Installer: Leave this manual by turning on shower or other humidity source until fan turns on. with the homeowner. 5. Repeat above steps if necessary. MODEL QTXE110S Page • Locate unit above (GFCI protected circuit required) or TYPICAL INSTALLATIONS within 5 feet of shower head. • Locate unit away from heating or cooling sources which can affect humidity levels. • Do not locate near window. Unit may respond to the outdoor humidity level. • Unit must be installed in ceiling to properly sense moisture. • Locate unit only on flat ceilings up to 12 feet high for proper sensing. • The fan will operate most efficiently when located where the shortest possible duct run and minimum number of elbows will be needed. Housing mounted to Housing mounted anywhere be- I-joists. tween I-joists using hanger bars. 2. Plan the wiring. • Plan to supply the unit with proper line voltage and appropriate power cable. Power cable should be routed to the switch box first and then to the unit (See “CONNECT WIRING” on page 3). • Do not operate this unit with a speed control. Damage to the sensor unit will result. Housing mounted to joists. Housing mounted anywhere be- tween joists using hanger bars. INSTALL HOUSING & DUCT 1a. Mount housing to joist or I-joist. Use a pliers to Housing mounted anywhere Housing mounted anywhere be- bend housing TABS between trusses using hanger tween trusses using hanger bars. TABS out to 900. Hold hous- bars. ing in place so that the hous- ing tabs con- PLAN THE INSTALLATION tact the bottom SPACER of the joist. (use for mounting to I-Joist) 1. Choose the The housing INsulatION mounts with installation (Can be placed around ROOF four (4) screws and over fan housing.) location. CAP* or nails. Screw or nail housing The location of to joist through your humidity lowest holes in sensing fan is each mount- very important. i n g f l a n g e , Use the follow- then through I-JOIST ing guidelines highest holes. NOTE: Mounting to (shown) requires use of for best opera- faN I-JOIST (included) between the highest hole of each tion: HOUSING SPACERS 6-IN. mounting flange and the I-joist. ROUN DUCT* * Purchase 6-IN. ROUND WALL separately ELBOW(S)* CAP* OR MODEL QTXE110S Page 1b. Mount housing anywhere between 2. Attach damper/ trusses, joists, or I-joists using hanger duct connector. bars. Snap damper / duct con- nector onto housing. Make Sliding hanger bars are provided to allow for accurate posi- sure connector is flush tioning of housing anywhere between framing. They can be with top of housing and used on all types of framing (I-joist, standard joist, and truss damper flap falls closed. construction) and span up to 24”. tab SCREWS (4) 3. Install 6-inch round duc- twork. Connect 6-inch round ductwork to damper / duct connector. Run ductwork to a roof cap or wall cap. Tape all ductwork con- nections to make them secure and air tight. MOUNTING HANGER CHANNEL (2) BAR (4) Attach the MOUNTING CHANNELS to the housing using the CONNECT WIRING SCREWS supplied. Make sure TABS face “up” as shown. Use the set of channel mounting holes (marked “STD”) to WIRING OPTION #1 - Allows fan to operate in automatic mode or manual mode mount the housing flush with the bottom of the drywall. Use (for odor control) by cycling ON/OFF switch. the other set of holes (not marked) to mount the housing ON / OFF SWITCH flush with the top of the drywall. (PURCHASE SEPARATELY) ORG BLK WHT FAN ON / OFF SWITCH BLK SCREW (2) BRN HUMIDITY WHT HOLE FOR OPTIONAL CONTROL * BLK SCREW MOUNTING (4) 120 VAC WHT WHT WHT LINE IN GRD GRD SWITCH BOX UNIT WIRING OPTION #2 - Fan can be turned ON, OFF, or set to operate automatically. MODEL 68W, 2-FUNCTION CONTROL (PURCHASE SEPARATELY) FAN RED ORG BLK WHT FAN (ON/OFF) COM HUMIDITY WHT bottom EDGE CONTROL NAIL (4) OF FRAMING HUMIDITY BLK BRN CONTROL Extend HANGER BARS to the width of the framing. (AUTO/OFF) BLK Hold ventilator in place with the hanger bar tabs wrapping 120 VAC WHT WHT WHT around the bottom EDGE OF THE FRAMING.