Qmark 899L - Through-Wall Ventilator - Manual (Page 2)

TOOLS
Installation of your Marley product 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
UL Listed Mark.
NEW HOME INSTALLATION
1. Cut round or square hole in sheathing at desired loca-
tion in wall. Round holes should be 9 1 ⁄
8
” in diameter.
Square holes should be 9 1 ⁄
8
” on a side. (See Figure 2.)
2. Install door and outside sleeve assembly from outside.
Caulk and level assembly before nailing door frame
tight.
Remove tape, permitting damper door to open. House
insulation can be worked around sleeve. (See Figure 3.)
3. Working from inside the house, slide inside sleeve into
place temporarily. Determine whether to remove one or
both knockouts from outside sleeve, permitting outlet
box to drop through. Remove knockouts from outside
sleeve. (See Figure 4.)
4. Slide inside sleeve into place again, and pull power
cable through outlet box opening. This will determine
length of power cable to ventilator. Power line should be
run to switch box holding toggle switch or optional timer.
Attach cable to outlet box, using an approved connector,
and splice cable to receptacle leads in outlet box cover.
Ground wire may be attached to grounding bolt in outlet
box. (See Wiring Diagram, Figure 5.)
5. Adjust inside sleeves so that flange will be flush with fin-
ished wall. Using metal screws, fasten inside housing to
outside housing. Screws are supplied with ventilator.
6. Push outlet box and outlet cover into place and fasten
with screws.
7. Install motor blade assembly. Engage keyhole slots
over screws in ventilator, twist and tighten, making sure
that blade is centered in sleeve. Be sure power is OFF,
then insert plug into receptacle.
8. Attach grille with knob.
Fig. 2
Fig. 3
Fig. 4
1”
MIN.
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