Accurex Model XCR and XIR Ceiling and Inline Fans

Direct Drive Ceiling Exhaust Fan

Designed for clean air applications where low sound levels are required. Many options and accessories are available such as lights, motion detectors, ceiling radiation dampers and speed controls. Capacities range from 25 to 1,600 cfm (42 to 2,718 m³/hr) and 1 in. wg (248 Pa). AMCA Licensed for Sound and Air Performance.

Diagram: Illustration of a Direct Drive Ceiling Exhaust Fan unit.

Direct Drive Inline Exhaust Fans

Designed for clean air applications where low sound levels are required. Capacities range from 70 to 3,800 cfm (119 to 6,456 m³/hr) and 1 in. wg (248 Pa). AMCA Licensed for Air Performance.

Diagram: Illustration of a Direct Drive Inline Exhaust Fan unit.

WARNING!

To reduce the risk of fire, electric shock, or injury to persons, observe the following:

• Suitable for use with solid state speed controls.
• Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.
• Before servicing or cleaning unit, switch power off at service panel and lock 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.
• Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable codes and standards, including fire-rated construction.
• Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning equipment to prevent back drafting. 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.
• When cutting or drilling into wall or ceiling, do not damage electrical wiring or other hidden utilities.
• Acceptable for use over a bathtub or shower when installed in a GFCI protected branch circuit. (Up through size XCR-A390)
• Never place a switch where it can be reached from a tub or shower.
• Ducted fans must always be vented to the outdoors.
• These fans are not recommended for cooking exhaust applications. They are designed primarily for low temperature, clean air applications only. The diagram shows the minimum distance these fans should be placed in relation to cooking equipment.
• Fan/Light combination not to be installed in a ceiling thermally insulated to a value greater than R40.

Visual: Warning symbol ❗

CAUTION!

For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.

Visual: Caution symbol ⚠️

AVERTISSEMENT!

Pour réduire le risque d’incendie, de choc électrique ou de blessure corporelle, respecter cd qui suit:

• Appareil pouvant être utilisé avec un régulateur de vitesse à semi conducteurs.
• Utiliser cet appareil exclusivement comme prévu par le fabricant. En cas de questions, communiquer avec le fabricant à l’adresse ou au numéro de téléphone figurant dans la garantie.
• Avant tout entretien ou nettoyage de l’appareil, couper l’alimentation sur le tableau électrique et verrouiller le dispositif de sectionnement pour empêcher toute mise sous tension accidentelle. Si le dispositif de sectionnement ne peut pas être verrouillé, attacher un moyen de mise en garde bien visible, tel qu’un panonceau, au tableau électrique.
• La pose et le câblage électrique doivent être effectués par des personnes qualifiées en conformité avec les codes et normes en vigueur, y compris pour la résistance au feu du bâtiment.
• Une quantité d’air suffisante est nécessaire pour la bonne combustion et l’extraction des gaz brûlés par le conduit d’évacuation (cheminée) d’appareils à combustible afin d’éviter le refoulement. Veiller à suivre les indications du fabricant du matériel de chauffe, les normes de sécurité telles que celles publiées par la National Fire Protection Association (NFPA) et l’American Society for Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) et la réglementation en vigueur.
• Lors de la découpe ou du perçage de murs ou plafonds, ne pas endommager les câbles électriques et autres conduites masquées.
• Pose admissible au-dessus d’une baignoire ou d’une douche sous réserve de raccordement à un circuit de dérivation à protection GFCI (disjoncteur différentiel). (Jusqu’à la taille XCR-A390 incluse)
• Ne jamais placer d’interrupteur à un emplacement à portée d’une baignoire ou d’une douche.
• Les caissons d’extraction à gaine doivent toujours être évacués vers l’extérieur.
• Ces caissons ne sont pas conseillés pour les applications d’aspiration de vapeurs de cuisson. Ils sont conçus essentiellement pour l’aspiration d’air propre à basse température. Le schéma indique la distance minimale de placement de ces caissons par rapport à l’équipement de cuisson.
• Le combiné ventilateur/luminaire ne devra pas être installé dans un plafond ayant une isolation thermique d’une valeur supérieure à R40.

Visual: Warning symbol ❗

Prepare the fan

Ceiling Radiation Damper (CRD)

If fan is to be used in a fire resistive membrane ceiling, a ceiling radiation damper must be used. If the ceiling radiation damper is already mounted to the fan from the factory, proceed to Install the Fan.

To mount the ceiling radiation damper to fan, make sure grille attachment tabs are facing down. Then place the inlet part of the fan into the ceiling radiation damper collar, and use self-tapping sheet metal screws (by others) to screw through the damper collar and into the fan housing. If the fan/light combination is being used, make sure ceiling radiation damper has an electrical plug in it. The electrical plug must be inserted into the fan. Make sure the electrical wire will not interfere with damper operation as shown in figure below.

Diagram: Shows CRD attachment for A50-510, 710, 780 Models, B Models, and A 700, 900-1550 Models. Includes labels for 'Attachment Tabs', 'Wires to ceiling fan', 'Wires from lighted grille', and a warning 'Do not allow interference in this area'.

Discharge Installation for Ceiling and Inline Exhaust Models Sizes B50-200

1. Insert box scroll tab into box scroll slots.
   Diagram: Shows inserting a box scroll tab into box scroll slots. Includes labels for 'Box Scroll Tabs', 'Box Scroll Slots'.
2. Rotate plastic duct adapter (PN 474433) until the two mounting tabs fully engage into the two box mounting slots.
   Diagram: Shows rotating a plastic duct adapter into box mounting slots. Includes labels for 'Box Mounting Tabs', 'Box Mounting Slots'.
3. OPTIONAL: Align the pins on the TR 6x4 adaptor to the duct pin hole on the 6-inch duct. Push until the adaptor snaps into place.
   Diagram: Shows optional TR 6x4 adaptor installation. Includes labels for 'TR 6x4 Pin', 'TR 6x4 (PN 473324)', '6-inch Plastic Duct (PN 474433)', 'Plastic Duct Pin Hole'.

Install the Fan

1. For best performance, choose a location with the shortest possible duct run and minimum number of elbows. Do not mount near cooking equipment, as shown in Fig. 1.
   Diagram: Fig. 1 shows a ceiling view with an area marked 'Do not install fan in this area' and indicates optimal placement for short duct runs and minimal elbows.
2. Attach adjustable mounting brackets to fan, but leave the screws loose until proper height is determined, shown in Fig. 2. Cut hole to dimensions shown in table below:
   Diagram: Fig. 2 shows adjustable mounting brackets attached to a fan housing, with labels indicating 'Bottom Mount', 'Top Mount', and 'Slots in the brackets allow fine adjustment for flush fit with wall/ceiling opening'.

Ceiling Openings

NOTE: Model A50-90 are standard with a round duct. Should Model A110-190 require a round duct, Model RDC (Round Duct Connector) may be ordered from manufacturer for field installation.

3. Installation of ductwork

Installation of ductwork is critical to the performance of the fan, shown in Fig. 5. Straight ductwork (1) or ductwork that turns in the same direction as the wheel (2) is recommended. Ductwork turning opposite the wheel direction (3) will cause turbulence and back pressure resulting in poor performance.

Diagram: Fig. 5 illustrates ductwork configurations: (1) Straight ductwork (GOOD), (2) Ductwork turning in the same direction as airflow (GOOD), (3) Ductwork turning opposite to airflow (POOR). Includes 'AIRFLOW' arrow.

4. Slide ductwork over the fan's discharge collar and securely attach it with sheet metal screws.

Make sure the screws do not interfere with damper operation. Check damper to make sure it opens freely.

Attach the Grille

1. If lighted grille is being used, plug wire into fan socket. If lighted grille and ceiling radiation damper are being used, plug wire from lighted grille into ceiling radiation damper socket. Do not plug wire directly into the fan socket. Make sure the wire does not interfere with the ceiling radiation damper operation.
2. Attach grille with two screws provided. Make sure not to over tighten; over tightening will damage grille.
3. Slide attachment screw covers over the attachment screws, shown in Figure 8 and 9.
4. If lighted grille is being used, install light bulb(s) into light socket(s). For fluorescent lights, use 27W GU24 bulbs. For LED lights, use 10W GU24 bulbs. Manufacturer has replacement 27W GU24 bulbs, call 1-800-355-5354 to order.
5. If lighted grille is being used, snap lens into place, by pushing on the outside edges of lens, shown in Fig. 9. To remove lens, use small screw driver and pry on one side of lens.
6. Turn on power and check fan and light operation.

Diagram: Fig. 8 shows attaching the grille with screws.

Diagram: Fig. 9 shows snapping the lens into place.

Converting from Ceiling to Cabinet Design for Ceiling Exhaust Fans

All convertible sizes will be shipped with grille and duct collar cover. Note, this applies only to fans originally ordered as convertible.

Conversion Kit Parts List

• Qty. of 1 Blower Box Cover

Tools Required

• Phillips Head Screwdriver

Steps:

1. Remove grille (A) by removing the two grille screws (B).
2. Remove duct collar cover (C) by removing the four duct collar screws (D).
3. Discard grille (A), two grille screws (B), and duct collar cover (C).
4. Remove the six (6) tinnerman clips (E) by twisting them to one side and pulling straight out. Discard two of the six tinnerman clips.
5. Insert the remaining four tinnerman clips (E) on grille opening side.
6. Place blower box cover (F) over tinnerman clips (E), which were inserted in step 5.
7. Screw the blower box cover (F) into place with four blower box cover screws (D).

Diagram: Shows parts A-F for conversion and illustrates the steps for removing and installing components.

Other Installation Considerations

Typical Installation

Diagram: Shows a typical installation scenario including insulation around the fan housing, a roof cap with damper, a wall cap with damper, round ductwork, and round elbows. Labels indicate 'INSULATION* (Place around and over Fan Housing.)', 'FAN HOUSING', 'POWER CABLE*', 'ROOF CAP* (with built-in damper)', 'Keep duct runs short.', 'WALL CAP* (with built-in damper)', 'ROUND DUCT*', 'ROUND ELBOWS*', 'Seal gaps around Housing.', 'Seal duct joints with tape.'. An asterisk indicates items to be purchased separately.

Our Commitment

As a result of our commitment to continuous improvement, Accurex reserves the right to change specifications without notice. Product warranties can be found online at accurex.com, either on the specific product page or in the Warranty section of the website at Accurex.com/Resources/Warranty.

P.O. Box 410 Schofield, WI 54476
Phone: 800.333.1400 • Fax: 715.241.6191
Parts: 800.355.5354 • accurex.com

Document 474741 • XCR XIR, Rev. 5, December 2020 © 2020 Accurex, LLC