Qmark 760L User Manual

MODEL 760L

VENT

READ AND SAVE THESE INSTRUCTIONS.

Model 760L is designed for ceiling installation with vertical discharge through the ceiling by means of
round duct. This fan may be used with Solid-State speed control devices.

UNPACKING

Unpack carefully. If there are missing components or hidden damage, immediately contact your distributor
or the delivering carrier concerning discrepancies. Care must be taken at all times in handling the motor blade
assembly to avoid bending the blade.

IMPORTANT SAFETY INSTRUCTIONS

TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK
OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:

1. Use this unit only in the manner intended by the manufac­turer. If you have questions, contact the manufacturer.

2. Before servicing or cleaning unit, switch power off at
service panel and lock service panel to prevent power
from being switched on accidentally.

3. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable codes
and standards, including fire-rated construction.

4. 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.

5. When cutting or drilling into wall or ceiling, do not damage
electrical wiring or other hidden utilities.

6. Ducted fans must always be vented to the outdoors.

7. If this unit is installed over a tub or shower, it must be
marked as appropriate for the application. See product label.

8. NEVER place a switch where it can be reached from a tub
or shower.

9. CAUTION: For General Ventilating Use Only! Do not use
to exhaust hazardous or explosive materials and vapors.

10. To reduce risk of fire and to properly exhaust air, be sure
to duct air outside. DO NOT vent exhaust air into spaces
within walls, ceilings, attics, crawl spaces or garages. DO
NOT install sleeve or duct in a fire rated wall.

Figure 1

DIMENSIONS

105⁄8”

SQUARE

5

3

⁄4”

1”

2

7

⁄8”

8

15

⁄16”

DIA.

6

29

⁄32”

WARNING

!

TOOLS

Installation of your Marley product is easy. No special technical knowledge is needed and only a few ordinary
tools are required:

Screwdriver
Hammer
Saber saw, Keyhole saw, or Jig saw
Electric drill with bit
Wire cutters
Wire stripper
Wire nuts and general electrical supplies
Safety glasses
Ruler and straight edge

All hand tools should be insulated. Power tools should display the UL Listing Mark.

NEW HOME INSTALLATION

1. Provide round hole, 91/8” diameter, in finished wall or ceiling.

2. Attach brackets to sleeve with screws provided in brackets. Nail or screw brackets to joists. See Fig. 2

3. Adjust sleeve so that flange will be flush with the finished ceiling.

4. Pull power cable through outlet box opening. Attach cable to outlet box, using an approved
connector. Splice cable to receptacle leads in outlet box cover. Ground wire may be attached to
grounding bolt in outlet box. Power line should run to switch box holding toggle. See Fig. 3

5. Push outlet box and outlet cover into place and fasten with screws.

6. Install motor blade assembly by engaging keyhole slots over screws in fan. Then twist and
tighten, making sure that blade is centered in sleeve. The motor mounting studs act as a vernier
adjustment. If the blade strikes in line with the motor bracket, the opposite nut can be tightened to
compensate. Be sure power is off, then insert plug into receptacle.

7. Attach grille with knob.

8. Finish installation by adding sufficient 7” pipe to go through the roof and installing a Marley Model
AD1106 Roof Cap. See Fig. 4

TO INSTALL IN EXISTING HOMES

1. Determine location of ventilator. Check ceiling for joists and obstructions.

2. Draw a circle 91/8” in diameter at determined location. Be sure opening is at least 1” from joist.

3. Carefully saw opening in plaster. Remove just enough insulation to allow sleeve to pass through.

4. After attaching mounting brackets to sleeve, nail or screw brackets to joists, or simply support sleeve
by resting mounting brackets on lath or other ceiling material.

5. Adjust sleeve so that flange is flush with finished ceiling.

6. Pull power cable through outlet box opening. Attach cable to outlet box, using an approved
connector. Splice cable to receptacle leads in outlet box cover. Ground wire may be attached to
grounding bolt in outlet box. Power line should be run to switch box holding toggle. See Fig. 3

7. Push outlet box and outlet cover into place and fasten with screws.

8. Install motor blade assembly by engaging keyhole slots over screws in ventilator. Then twist and
tighten, making sure that blade is centered in sleeve. The motor mounting studs act as a vernier
adjustment. If the blade strikes in line with the motor bracket, the opposite nut can be tightened to
compensate. Be sure power is off, then insert plug in receptacle.

9. Attach grille with knob.

10. Finish installation by adding sufficient 7” pipe to go through the roof and installing a Marley Model
AD1106 Roof Cap. See Fig. 4.

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