Installation & Maintenance Instructions MBI Centrifugal In-Line Fans
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, INJURY TO PERSONS, PLEASE READ THESE INSTRUCTIONS CAREFULLY 1. Before servicing or cleaning the unit, ensure that the electrical service to the fan is locked in the “OFF” position 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. Do not re-establish power supply until the fan has been completely installed. 2.
MBI in-line centrifugal fans are enclosed in a metal case designed for mounting in round ventilation ducts. The delivery set includes: • Fan -1 • Screws with dowels – 4 Depending on model, fan is compatible with 4” (100 mm), 5” (125 mm), or 6” (150 mm) diameter duct. Fans may be wall or ceiling mounted (Figure 1-3) and are designed for intake or exhaust ventilation in residential, public or industrial premises.
Fan mounting with the use of a bracket, four screws, and dowels is shown in Figures 4-8.
Duct attachment is shown in Figures 9-12. The airflow direction should match that indicated on the fan housing.
The wiring diagram for MBI models is show in Figure 13. Make sure to disconnect the fan from the power mains prior to installation. (Figure 14) The input voltage is 120V AC 60Hz. When connecting the fan to power, it is necessary to: 1. Remove the cover from the terminal box. (Figure 15) 2. Remove the clamping bar. (Figure 16) 3. Lay out the cables through the terminal box lug, remove the insulation from the cables ends for 1/4 of an inch (6-7mm) length, connect them to proper terminals and fix with screws.
Make sure to disconnect the fan from the power mains prior to any cleaning. Proper maintenance (Figures 19-22) includes periodic cleaning of the fan surfaces from dirt and dust. Do not allow liquids to come in contact with the electic motor. Wipe surfaces dry after cleaning.
The MBI fan has been duly certified as serviceable. MBI100 MBI125 MBI125/100 MBI150 MBI150/125 Manufactured on (date): Date of sale: Sold by: (name of trading enterprise, stamp of store) Company name: Electrician name: Date: Signature: Do to constant product improvements, some models may differ slightly from those portrayed in this manual. www.continentalfan.com www.continentalf an.com better AIRFLOW by DESIGNTM USA - Continental Fan Manufacturing Inc. Canada - Continental Fan Canada Inc.
