VSA /VSB /KSA /KSB
8Pages

Saving energy and creating healthy, comfortable environments READ AND SAVE THESE INSTRUCTIONS No. Date TABLE OF CONTENTS THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: WARNING: TO REDUCE Installation & Maintenance Instructions 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 national and local codes having jurisdiction, including fire-rated construction. See page 4, ELECTRICAL CONNECTIONS (NEC Code ANSI/NFPA No. 70). When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities. 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. 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). D. E. F. G.

the best mounting method and; as a general rule, use the mounting configuration that positions the air door as close to the top of the doorway as possible without interfering with door operation. 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 straps securing the carton(s) to the skid. Open the carton(s) and remove all protective packaging. Immediately verify that the electrical rating nameplate located on the cover matches the electrical...

E. The air door is weatherproof. Therefore, no special covering is required when outdoor mounting unheated, steam, or hot water units. NOTE: Electric heated units are to be installed indoors only. F. IMPORTANT: A minimum of 4” (8” preferred) clearance is recommended above the top of the air door for the installation and removal of the screen or to gain access to junction boxes. G. 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 door opening. If the air...

FIGURE 4 - With Extension Brackets FIGURE 3 - Threaded Rod Suspension IV. SUSPENDED MOUNTING A. Suspended mounting works well with the majority of door types commonly found in an industrial setting, such as roll up doors, “high rise” track doors, “low-rise” turn back doors, and “high-rise” turn back doors. B. The VS and KS Series end plates are equipped with ½” holes for suspended mounting. The unit may be suspended using a minimum ³/8” suspension rod (Figure 3), or using ³/8” suspension rods and extension brackets (available from Berner). See Figure 4. C. Electrical Connections - Proceed...

FIGURE 6 - Floor Mounting FIGURE 9 - Tandem Mounting A. Check the rating nameplate on the top of the unit for supply voltage and current requirements. A separate line voltage supply with a suitable branch circuit protection device should be run directly from the main electrical panel to the unit. A disconnect switch for each branch circuit is a required part of this installation. VIII. MECHANICAL CONNECTIONS A. ELECTRIC HEATED MODELS The heater circuit may be controlled by a remote thermostat or manually through the switch located on the discharge side of the unit. Overheating protection is...

2. Find the air stream split location. Hold a handkerchief by its corners, approximately 12” above the floor. Gently move the handkerchief back and forth in the doorway. Make sure the air is being directed to both the inside and the outside. See Figure 11. The split location is indicated where the handkerchief is vertical with minimal or no fluttering. A. GENERAL OPERATION Air curtain operation may be divided into four areas: control package, fan activation, fan speed selection, and heat activation. The air curtain must be properly installed before it is used. 1. Control packages control...

A. Blower Module Removal 1. Disconnect and lockout power from the unit. 2. Remove the Bottom Access Panel. The Inlet Screen and Top Access Panel do not need to be removed, but taking them off can make the process easier. 3. Disconnect the wire harness from the motor(s). If the unit has electric heat, label and remove power wires and thermal cutout circuit wires from the heater assemblies. See Figure 14. 4. Removing the blower module requires removing (4) #12 self-drilling sheet metal screws. Using a 5/16” hex driver, first remove the (2) screws that go through the Transverse into the Motor...