Carnes VELK Installation Manual

INSTALLATION, OPERATION & MAINTENANCE

ROOF AND WALL MOUNTED PROFILE FANS

DIRECT DRIVE

MODELS VULK & VELK

CARNES COMPANY, 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: [phone] Fax: [phone] [e-mail] www.carnes.com

INTRODUCTION

This manual is to be used as an aid in the proper installation, operation, and maintenance of the above Carnes fans.
This information is to be used as a general guide. Due to the variety and complexity of many installations it is the
responsibility of the purchaser to assure that qualified personnel handle these procedures.

RECEIVING, HANDLING, & STORAGE

1. Handle the fan with care. Avoid severe jarring or dropping of the unit.

2. Inspect the unit for damage upon delivery. If the unit has been damaged in transit it is the responsibility of the
recipient to file all freight claims.

3. Provide adequate, protected storage prior to installation.

FORM 1511, Page 1

MECHANICAL INSTALLATION CAUTIONS

1. Do not operate this fan in an environment where combustible or flammable materials, gasses, or fumes are

present unless it has been specifically designed and manufactured for use in that environment.

2. Turn the wheel by hand to check clearances. If necessary, adjust the wheel by moving the motor to center

the wheel over the inlet venturi and if necessary, raise or lower the wheel on the motor shaft.

3. Ensure that all fasteners and setscrews are tight.

ELECTRICAL INSTALLATION CAUTIONS

1. Be sure the supply voltage matches the motor nameplate voltage. On multiple voltage motors, check the

motor wiring to ensure that the motor has been wired for the correct voltage.

2. All fans must be grounded.

3. Keep all wiring clear of rotating components and moving parts such as gravity or motorized dampers.

4. Make sure power is locked OFF at the service entrance prior to wiring or otherwise approaching the fan.

5. A qualified electrician must do all electrical work in accordance with local and/or the National Electrical

Code (NEC).

FORM 1511

INSTALLATION OF ROOF TOP FANS

1. This fan is designed for exhaust applications only. Refer to the catalog V-104 for particular application details.

2. Any optional dampers should be mounted to allow free and unobstructed operation.

3. This fan requires a minimum of four (4) mounting fasteners, of the appropriate size and type in order to be

securely fastened to the roof curb. Be sure to use an approved sealant or gasket between the fan and curb to
prevent leaking and possible vibration.

INSTALLATION OF WALL MOUNTED FANS (VULK Only):

WALL OPENING PREPARATION

1. The wall opening must be sized according to the dimensions given in the Specification Sheet 11050 or on page 4 of

the Installation Instructions.

2. A mounting frame is supplied and must be attached to the wall on the side that the unit will be on.

3. Fasten the frame to the wall using a minimum size of 5/16” dia. thru-bolts, lag-bolts, expansion-bolts or other

appropriate heavy duty hardware for the type of wall construction at hand.

4. Push the supplied metal clips over the frame and line each of them up with one of the 4 unit mounting holes. Flat

side out.

WALL OPENING PREPARATION

1. Identify the Motor Compartment Vent Tube It is a short tube extending out of the motor compartment and passing

through the outer air shroud.

2. If a Damper is also being installed with this unit check its mounting position and wiring requirements (if motorized).

3. Apply a quality sealant around the frame in order to prevent water and air leaks between the wall and frame or

frame and unit.

4. Lift the unit into position on the wall with the Motor Compartment Vent Tube opening downward. This prevents

water from running into the motor compartment.

5. Be sure the unit is in the final position and drive the four self-tapping screws through the pre-punched holes in

the Wall Mounting Cap and into the clips installed on the frame.

6. Route the motor supply power wires through the conduit opening next to the unit’s air intake.

7. If a wall grille is installed on the inside wall, the wall must be at least 6” thick.

2

MECHANICAL AND ELECTRICAL START-UP CAUTIONS:

1. Be sure the fans inlet, outlet, and the ductwork are open and free of loose objects.

2. Be sure all personnel are clear of fan rotating parts prior to start-up.

MAINTENANCE CAUTIONS:

Before performing any maintenance on the fan, be sure the power is locked OFF at the service entrance.

START-UP

1. Operate the fan under power briefly in order to check for proper rotation. Incorrect fan rotation will cause the

motor to over heat.

2. Check the operation of any dampers. Be sure they open and close fully.

MAINTENANCE

Fans should be carefully checked at least once a year. For critical or rugged applications, a routine check should be
done every 2 or 3 months.

1. A periodic check should consist of spinning the motor shaft with the power locked OFF to be sure the motor

turns freely, and the motor bearing run smoothly.

2. Check the wheel to motor shaft setscrew to ensure proper tightness.

3. Access to the motor compartment is obtained by removing the motor cover, which is held in place by (4) machine

screws.

TYPICAL WIRING DIAGRAMS — (ALL MOTORS)

MOTOR

BLACK

BLUE

RED

WHITE

GREEN

HIGH

SPEED

SWITCH

L1

L2

THREE SPEED MOTOR DESCRIPTION

Carnes models VELK and VULK are equipped with three-speed ODP motors as standard. These motors each fea­ture three very distinct speeds and horsepower’s, as shown in the performance charts on pages 3 and 5 of this
catalog. These motors can be wired direct or dedicated to a particular speed, for example, the motor can be “hard”
wired to high speed and the fan will always run on the high speed. These motors can also be wire to a three-speed
switch, allowing someone to “change” the speed via a switch between high-medium-low.

All motors supplied with Carnes fans carry a one-year warranty from the date of shipment. For repairs within the war­ranty period, the motor must be taken to the manufacturer’s authorized service dealer. Contact your Carnes
Representative for additional warranty details.