Qmark SSHO Smart Series - High Out-Put Digital Wall Heater - Manual (Page 3)

Installation of Back Box in
Existing Construction
1. Provide a wall opening 14-1/2" (362 mm) wide by 18-1/2"
(470 mm) high at the desired mounting height, but no closer
than 12" (305 mm) from floor or adjacent wall. (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 ON/OFF 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 ON/OFF switch to the supply
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.
6. Connect building ground conductor to the back box using the
green screw located in the inside top of the back box.
7. Secure ON/OFF 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.
Installation of Heater Assembly
Carefully position the heater assembly, with fan on top, and ele-
ment on bottom into the back box (see Figure 4).
NOTE: The heater assembly must be carefully positioned to
ensure the wires and wire connector are not trapped between
the heater assembly and the back box.
Once the heater assembly is positioned correctly in the back
box, fasten securely using the four screws provided, one in each
corner (see Figure 4).
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)
ON/OFF switch
bracket with switch
and leads
Lead wires (Blue)
Power supply cable Ground
screw
Cable
clamp
Back Box
CONTROL BOARD
ON/OFF SWITCH
RED JUMPER WIRE FOR
BUILDING MANAGEMENT
SYSTEM CONNECTION
THERMISTOR
*BLACK AND *BLUE LEAD WIRES ARE
IDENTIFIED WITH WHITE TAPE AT EACH
STRIPPED END TO INDICATE THAT THE
NEUTRAL FOR THE 277V MODELS ARE
TO BE CONNECTED TO THESE LEADS.
MOTOR
MOTOR LEAD
MOTOR LEAD
MANUAL
RESET RED
BLACK
BLACK
RED
BLUE
GREEN
*BLUE
BLACK
*BLACK
L2/N
L1
L2/N
L1
L2/N
L1
G
G G
LIGHT
ELEMENT
YELLOW
BLUE
BLACK
VDR1
S1
S2
B
W6
E1
E2
E3
W4
A
FAN-N
FAN-A
W6 W5
Transformer RED
DATA CABLE
Field Connections
Figure 3 - Wiring Diagram
Figure 4 - Installation of Heater Assembly
Mounting Screw
Locations
Mounting Screw
Locations