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IMPORTANT INSTRUCTIONS READ AND SAVE THESE INSTRUCTIONS No. Date DRIVE-THRU UNIT Your new Drive-Thru air door (air curtain), properly installed, maintained and operated, will keep fumes out of your restaurant, increase employee comfort, and save energy. Installation & Maintenance Instructions TABLE OF CONTENTS WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: A. Read all instructions before installing or using this air curtain. B. Use this unit only in the manner intended by the manufacturer and described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons. If you have any questions, contact the manufacturer. C. 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. D. Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable national and local codes having jurisdiction, including fire-rated construction. See page 4, ELECTRICAL CONNECTIONS (NEC Code ANSI/NFPA No. 70). E. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities. F. To reduce the risk of fire, do not store or use gasoline or other flammable vapors and liquids in the vicinity of the air curtain. G. This air curtain is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, etc. and curtains at least 1 inch from the top, back, front, sides and at least 6 feet from the discharge of the air curtain. H. Extreme caution is necessary when any air curtain is used by or near children or invalids, and whenever the heater is left operating unattended. I. Do not operate any air curtain after it malfunctions. Disconnect power at the service panel and have the air curtain inspected by a reputable electrician before reusing. J. To disconnect the air curtain, turn controls to “off”, and turn off power to the air curtain circuit at main disconnect panel. K. Do not insert or allow foreign objects to enter any ventilation or discharge opening as this may cause an electric shock or fire, or damage the air curtain. L. To prevent a possible fire, do not block the air intake or discharge of the air curtain in any manner. M. The air curtain has hot and arcing or sparking parts inside. Do not use it in areas where gasoline, paint, or flammable vapors or liquids are used or stored. N. This heater may include an audible or visual alarm to warn that parts of the heater are getting excessively hot. If the alarm sounds (or illuminates), immediately turn the heater off and inspect for any objects on or adjacent to the heater that may have blocked the airflow or otherwise caused high temperatures to have occurred. DO NOT OPERATE THE HEATER WITH THE ALARM SOUNDING (OR ILLUMINATING).

A. When determining the mounting location for the unit(s), make sure that nothing interferes with the curtain of air developed when the discharge vanes are directed from 0º to 20º toward the drive-thru window opening. If the air stream strikes any obstruction (the top edge of the window, a window opening device, etc.), the effectiveness of the unit will be greatly reduced (See Drawing 1). Carefully examine the carton(s) for damage before opening. If the carton is damaged, immediately notify shipping company. If the unit(s) were shipped on wooden skids, remove protective wood and banding...

III. WALL MOUNTING The Drive-Thru Unit air door is shipped with a variety of wall mounting options. Included in standard orders are standard brackets (See Figure 1) and spanning legs (See Figure 2). Adjustable brackets (See Figure 3) available by special order. FIGURE 1 -Standard Brackets FIGURE 2 -Spanning Brackets (works with both standard and adjustable extension brackets) FIGURE 3 -Adjustable Extension Brackets (optional, must be ordered separately by special order)

Motor Voltages/Amp Draws DTU1018AA DTU1018EA DTU2026AA DTU2026EA Volts IV. ELECTRICAL CONNECTIONS All electrical wiring and connections MUST be performed by qualified personnel in accordance with the National Electrical Code ANSI/NFPA No. 70 (latest edition) or, in Canada, the Canadian Electrical Code, Part 1-C.S.A. Standard C22.1, and local codes and regulations. A. Check the rating nameplate on the top of the unit for supply voltage and current requirements (See Figure 2). Unheated units may be plugged into any 15 or 20 amp receptacle. Heated units require a dedicated 20 amp receptacle...

CAUTION: ELECTRIC SHOCK HAZARD: Disconnect power when servicing unit. More than one disconnect may be required to de-energize unit. Any service performed on the Drive-Thru Unit air door MUST be done by qualified personnel. Berner air doors require very little servicing. All parts are easily accessible for periodic inspection and maintenance. Units should be cleaned at least twice a year. Your particular application (the amount of dirt and dust in the air) and location of the unit(s) will determine how often your unit(s) will need to be cleaned and serviced. All motors have permanently...

VIII. WARRANTY Berner International (“The Company”) warrants all new equipment to be free of defects in workmanship and material for a period of one year on unheated and heated models from the original date of shipment, provided the equipment has been properly cared for, installed and operated in accordance with the limits specified on the nameplate and The Company’s instructions. The Company will correct by repair or replacement, at its option and expense, any proven defects in said apparatus, subject to the above conditions, provided that immediate written notice of such defects is given...