Qmark MM748 User Manual
READ AND SAVE THESE INSTRUCTIONS
MODEL MM648 & MM748 F ANS AND
MODEL MM664IC, MM667IC & MM667ICF
F AN / LIGHTS
DESCRIPTION
Models MM664IC, MM667IC, MM667ICF, MM648 and MM748 fans
are intended for use in bathrooms. However, they can also be used
in other areas where ventilation is required. Models MM664IC,
MM667IC, and MM667ICF are U.L. Listed Type I.C. (Inherently
Protected) for installation in insulated ceilings.
UNPACKING
Unpack carefully. If there are missing components or hidden
damage, immediately contact your distributor or the delivering
carrier concerning discrepancies.
1.
Do not use this fan with any Solid-State speed control device.
2. Use this unit only in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer.
3. Before servicing or cleaning unit, switch power off at service
panel and lock service panel to prevent power from being
switched on accidentally.
4. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable codes and
standards, including fire-rated construction.
5. 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 and Air Conditioning
Engineers (ASHRAE), and the local code authorities.
6. When cutting or drilling into wall or ceiling, do not damage
electrical wiring or other hidden utilities.
7. Ducted fans must always be vented to the outdoors.
8. If this unit is installed over a tub or shower, it must be marked
as appropriate for the application and connected to a GFCI
protected branch circuit. See product label.
9. NEVER place a switch where it can be reached from a tub
or shower.
10. CAUTION:For General Ventilation Only! Do not use to
exhaust hazardous or explosive materials or vapors.
11. Not for use in kitchens.
FIG. 1
MODELS
MM664IC
MM667IC
MM667ICF
IMPORTANT SAFETY INSTRUCTIONS
WARNING:
TO REDUCE RISK OF FIRE,ELECTRICAL SHOCK OR
INJURY T O PERSONS, OBSERVE THE FOLLOWING:
12 1/4"
10
3/4"
6 3/4"
5 1/2"
6 1/4"
7 3/4"
MOTOR AND
BRACKET
ASSEMBLY
OUTLET
BOX
4" AIR DISCHARGE
OUTLET
GRILLE
REFLECTOR
SCREW
LENS
FIG. 2
MODEL
MM648
FIG. 3
MODEL MM748
NOTE; To install grilles,
pinch springs together and
slide into grille mounting slot.
TOOLS
Installation of your bath fan is easy. No special technical
knowledge is needed; 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
U.L. Listing Mark.
1. Attach duct adapter to housing by first inserting pin on duct
adapter into round hole in top of housing, then pivot and align
two locking tabs with small rectangular holes. See Fig. 4.
Press tabs firmly into place.
NOTE: The attachment of the duct adapter to the housing maybe
reinforced, if desired, by installing a #8 self-tapping screw through
the obround hole in the duct adapter and the small round hole in
the housing.
2. Attach housing to joist with screws or nails. Housing is
stamped to show a line at 3/4” for standard sheetrock and
plaster and 3/8” for drywall. See Fig. 5.
3. Run 120VAC, 60Hz power leads from wall switch or timer
to appropriate knockout in housing. Use a BX or Romex
connector on outlet box.
WARNING:SUPPLY WIRING MUST BE U.L. RATED 90°C
FOR FAN/LIGHT MODELS.
NOTE: The knockout support may be reversed, if desired, to
open alternate knockout hole and cover unused hole. See Fig. 5.
If both holes are to be used, simply remove knockout.
NEW HOME INSTALLATION
-2-
FIG. 4
FIG. 5
FIG. 6
DUCT ADAPTER
KNOCKOUT
SUPPORT
ROUND
DUCT
WALL
CAP
6 3/4"
5 1/2"
6 1/4"
7 3/4"
MOTOR AND
BRACKET
ASSEMBLY
UNITS ONLY)
GRILLE
MTG
SLOTS
OUTLET
BOX
4" AIR DISCHARGE
OUTLET
12 1/4"
10
3/4"
SPRING
CLIP
GRILLE
6 3/4"
5 5/8"
7 3/4"
MOTOR AND
BRACKET
ASSEMBLY
SPRING
CLIP
GRILLE
OUTLET
BOX
3" AIR DISCHARGE
OUTLET
12 1/4"
10
3/4"
Loading...