Qmark LFK Series - Wall Heater - Manual (Page 2)

Installation of Recessed Back Box in New
Construction
1. Mounting Back Box (See Figure 1).
a. Place the back box between two 16" (406mm) center-
to-center wall studs at the desired mounting height but
no closer than 8" (203mm) to adjacent wall or floor.
b. Align back box such that the bottom and sides will be
flush with finished wall surface (top flange of back box
should protrude approximately 1/ 2" / 12.7mm from fin-
ished wall surface).
c. Secure the back box in position with wood screws or
nails as shown in Figure 1.
2. Power Supply Wiring (See Figure 1).
Note: Wire Compartment Volume - 119in 3 (1950cm 3 ).
a. Run correctly sized power supply cable into the knock-
out area in the upper right hand corner of the back
box.
b. Install a cable clamp in the knockout in the top of
the back box.
c. Insert power supply cable through cable clamp, allow-
ing at least 6" (152mm) of leads to extend inside the
back box.
d. Ground the back box by connecting the supply ground
leadwire to the green ground screw located in the
inside top of the back box.
Installation of Recessed Back box in Exisiting
Construction
1. Provide a wall opening 14-1/ 2" (362mm)wide x 18-1/ 2"
(470mm) high at the desired mounting height, but no
closer than 8" (203mm) to adjacent wall. (See Figure 2.)
2. Power Supply Wiring
NOTE: (Wiring Compartment Volume - 119in 3 (1950cm 3 ).
a. Run correctly sized power supply cable into the area
above the top of the wall opening.
b. Install a cable clamp in the knockout in the top of back
box.
c. Insert power supply cable through cable clamp, allow-
ing at least 6" (152mm) of cable length to remain
inside the back box to facilitate connections.
d. Ground the back box by connecting the supply ground
leadwire to the green ground screw located in the
inside top of the back box.
3. Mounting Back Box
a. Place the back box into wall opening flush with fin-
ished wall surface on bottom and sides of box. (Top
flange of back box should protrude approximately 1/ 2"
(13mm) from finished wall surface).
b. Secure the back box in place with wood screws or
nails.
Installation of Back Box With
Surface-Mounting Frame
(See Figure 3).
1. Secure back box to wall (with knockouts in upper right
hand corner) using screws and anchors.
2. Hang the surface-mounting frame on the back box.
Ensure that the back edge of the surface-mounting frame
is flush against the wall.
NOTE: If heater is located in a high traffic area where it may
be subjected to vandalism or abuse, take extreme care
to see that the box is firmly attached to the wall.
IMPORTANT
CAUTION
WARNING
DO NOT INSTALL HEATER UPSIDE DOWN OR
SIDEWAYS.
DO NOT USE HEATER WITHOUT GRILLE.
FOR WALL MOUNTING ONLY. DO NOT INSTALL HEATER
CLOSER THAN 8" (203 mm) TO THE FLOOR OR ANY
ADJACENT WALL SURFACE. DO NOT INSTALL CLOSER
THAN 36" (915 mm) TO THE CEILING.
Fig. 1: Locating Recessed Back Box in New Construction
Fig. 2: Locating Recessed Back Box in Existing Construction
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2
GROUND
SCREW
BACK BOX
BACK BOX
CABLE
CLAMP
8” MIN.
(203mm)
8” MIN.
(203mm) 8” MIN.
(203mm)
18-1/ 2” MIN.
(470mm)
14-1/2” MIN.
(362mm)
NAIL OR SCREW
(2 EACH SIDE)
GROUND SCREW
CABLE CLAMP
NAIL OR SCREW
(2 EACH SIDE)
8” MIN.
(203mm)
POWER SUPPLY CABLE
POWER SUPPLY CABLE