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Qmark Mechanical Artisan - Heavy-Duty Architectural Wall Heater User Manual

Page 3

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7. Insert power supply cable through cable clamp, allowing at

least 6" (152 mm) of leads to extend inside the back box.
Connect the blue lead wires of disconnect switch to the sup-
ply wire leads using wire connectors (see Figure 3, Wiring
Diagram).

NOTE: If power supply is provided by standard non-metallic
sheathed cable (Romex) and the supply voltage is 240 or 208
volts (two power wires), the white wire color must be changed
using black electrical tape to comply with the NEC. White is only
allowed for a Neutral conductor.

8. Connect building ground conductor to the back box using the

green pigtail lead located in the inside top of the back box
and secure second green pigtail lead to back box green pig-
tail.

9. Feed remaining 2 wires from disconnect switch through hole

in switch bracket and secure disconnect switch bracket in
place by tightening screws.

10. Secure disconnect switch bracket in place by tightening

screws.

Installation of Recessed Back Box in

Existing Construction

1. Provide a wall opening 14-3/4" (375 mm) wide by 18-1/2"

(470 mm) high at the desired mounting height, but no closer
than 12" (305 mm) from floor. (See Figure 2.) Locate so at
least one side of opening is at wall stud.

2. Run a power supply cable into the knockout area in the upper

right hand corner of the wall opening (see Figure 2). All
wiring must be in accordance with National and Local
Electrical Codes. Refer to Specifications for correct wire size.

3. Remove disconnect switch bracket by loosening two screws

on the right side.

4. Install a cable clamp in the knockout in the top of the back

box.

5. Insert power supply cable through cable clamp, allowing at

least 6" (152 mm) of leads to extend inside the back box.
Connect the blue lead wires of disconnect switch to the sup-
ply wire leads using wire connectors (see Figure 4, Wiring
Diagram).

NOTE: If power supply is provided by standard non-metallic
sheathed cable (Romex) and the supply voltage is 240 or 208
volts (two power wires), the white wire color must be changed
using black electrical tape to comply with the NEC. White is only
allowed for a Neutral conductor.

6. Connect building ground conductor to the back box using the

green screw located in the inside top of the back box.

9. Feed remaining 2 wires from disconnect switch through hole

in switch bracket and secure disconnect switch bracket in
place by tightening screws.

8. Insert back box in wall opening being careful not to damage

the supply wiring. Secure the back box in place with wood
screws or nails.

3

Figure 2: Locating Back Box in Existing Construction

12” Min.

(305 mm)

Nail or screw
(2 each side)

12” Min.
(305 mm)

14 1/2” Min.
(362 mm)

Disconnect switch

bracket with switch
and leads. (No discon-
nect switch on 208V
models)

Lead wires (Blue)

Power supply cable

Ground
screw

Cable
clamp

Back Box

GND

TO

DISCONNECT

SWITCH

L1

L2

PL

F.D

THERMOSTAT

L1

OFF

L2

CYC

MOTOR

M

O

TO

R

E1

E2

JUMPER

BLK

MANUAL RESET

LIMIT

EO

L

ELEMENTS

MOTOR

Figure 3: Wiring Diagram

POWER SUPPLY VOLTAGE MUST BE THE SAME AS
HEATER VOLTAGE RATING SHOWN ON HEATER NAME-
PLATE. CONNECTING TO A VOLTAGE IN EXCESS OF
NAMEPLATE RATING WILL DAMAGE HEATER AND VOID
WARRANTY.
ALL CONNECTIONS MUST BE MADE WITH APPROPRIATELY
SIZED LISTED WIRE CONNECTORS.