Qmark CWH Series - Architectural Fan-Forced Wall Heaters - Manual (Page 2)

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GENERAL
The heater is designed for recessed installation in 2” X 4” (50 mm X 101
mm) stud or larger wall sections using the wall box provided. The heater
may also be surface mounted by using the Surface Mounting Frame,
Model SWHSM or semi-recess mounted by using a SWHS1 (for 1” (25
mm) recess frame) or a SWHS2 (for 2” (50 mm) recess frame). All three
accessories are ordered separately. The heater may be wired with stan-
dard building wire (60°C). Refer to specification chart (see pg. 4) for cor-
rect supply voltage and wire size.
NOTE: The optimum mounting height for this heater is 18" to 24" (450 to
600 mm) from floor to bottom of back box. Do not install closer than
4”(101 mm) from the floor.
For surface or semi-recess mounting, consult Installation Instructions
packed with SWHSM, SWHS1, SWHS2.
INSTALLATION OF BACK BOX IN NEW CONSTRUCTION
NOTE: If the finished wall surface is already up, follow instructions for
“INSTALLATION OF BACK BOX IN EXISTING CONSTRUCTION”.
1. Determine which side of the back box is to be mounted against a
stud and bend the tabs at the rear corners out 90 degrees so that
the back box will be square with the stud after installation. (See
Figure 1).
2. Remove one of the knockouts on socket side of the back box and
install a cable or conduit connector.
3. Position back box against side of studs and secure using nails or screws
as shown in Figure 1.
NOTE: The back box must be installed with the front edge flush with
the finished surface.
4. Run power supply cable through the connector, leaving about 8” of
wire inside the box.
5. Connect the supply cable ground wire to green ground screw provided.
NOTE: Lead holes for a #8 sheet metal screw have been provided in the
sides of the back box.. After the finished wall or ceiling has been put up,
drive a # 8 sheet metal screw (recommended 1” long) through the side of
the box not mounted to the stud. This will prevent the back box from
pulling out when installing the heater assembly. (See Figure 1)
INSTALLATION OF BACK BOX IN
EXISTING CONSTRUCTION
1. Carefully mark and cut a hole measuring 9-3/8" (235mm) wide by 11-
1/8" (283mm) long. One edge of the hole must be cut along the
edge of a stud.
2. Proceed to No. 1 through 5 (Installation of Back Box in New
Construction).
FIELD CONVERSION FOR LOWER WATTAGE RATING
NOTE: Refer to specification chart for lower wattage ratings which are
available.
To convert heater to lower wattage rating, completely remove red jumper
wire from both heating elements (See Figure 2). Discard this jumper. Be
sure remaining wires are securely connected.
INSTALLATION AND WIRING OF HEATER / FAN ASSEMBLY
1. Following wiring diagram (Figure 3) connect supply wiring to heater
lead wires in back box.
NOTE: For 120 and 277 volt heaters connect the white neutral supply
lead to the heaters white pigtail lead, and connect the black supply lead
to the heater black pigtail lead. For 208 and 240 volt heaters change the
color of the heaters white pigtail lead to black by wrapping with black
electrical tape. (Most electrical codes require the supply leads to be con-
nected to black leads). Then connect the two black supply leads to the
two black receptacle leads.
2. Secure supply ground wire under green ground screw in back box.
THE HEATER IS HOT WHEN IN USE. DO NOT INSTALL THE
HEATER BEHIND DOOR, BEHIND TOWEL RACK, IN CLOSET,
WHERE CURTAINS OR DRAPES COULD TOUCH OR BECOME
SCORCHED BY HEATER, OR WHERE AIRFLOW TO HEATER MAY
BE OBSTRUCTED. KEEP ELECTRICAL CORDS, BEDDING, FURNI-
TURE AND OTHER COMBUSTIBLES AWAY FROM HEATER.
TO PROVIDE FOR SAFE OPERATION, THE FOLLOWING CLEAR-
ANCES MUST BE MAINTAINED.
WALL MOUNTING: • MINIMUM FOUR (4) INCHES (102MM) TO
FLOUR • MINIMUM TWELVE (12) INCHES (305MM) TO ADJACENT
WALLS • MINIMUM THIRTY SIX (36) INCHES (915MM) TO CEILING
CEILING MOUNTING: • MINIMUM TWELVE (12) INCHES (305MM TO
ANY WALL
TO PREVENT HAZARD OF FIRE OR ELECTRICAL SHOCK, DO NOT
INSTALL WITHOUT BACK BOX.
CAUTION
IMPORTANT
WARNING
CAUTION
!
!
!
!
Figure 1
BEND
OUT
TAB
CABLE CLAMP
BACK BOX
LEAD
HOLES
SUPPLY
WIRING
CABLE
NAILS OR
SCREWS (2)
Figure 2
Remove red
jumper for
lower wattage
rating
AN ELECTRICAL SHOCK, FIRE OR WATER DAMAGE COULD
RESULT IF WIRING OR PIPING IS DAMAGED DURING CUTTING.
MAKE SURE ALL WIRING AND PIPING ARE CLEAR OF AREA
BEFORE CUTTING.
CAUTION !
DO NOT USE A REMOTE THERMOSTAT WITH THIS HEATER.
BUILT IN THERMOSTAT CYCLES THE HEATING ELEMENT ONLY.
FAN DELAY CONTROL AUTOMATICALLY TURNS FAN ON AND
OFF, AND PROVIDES A FAN DELAY OFF FEATURE TO REMOVE
RESIDUAL HEAT AFTER THERMOSTAT HAS TURNED HEATING
ELEMENTS OFF. WIRING OF HEATER IN ANY MANNER WHICH
DEFEATS THE FAN DELAY OFF FEATURE CAN RESULT IN
OVERHEATING AND PERMANENT DAMAGE TO HEATER, AND
WILL VOID THE WARRANTY.
a
CAUTION !