Dimplex EWa-C 1 kW, EWa-C 1.5 kW, EWa-C 2 kW Installation Instructions Manual

Down-Flo Wall Heater

1-888-346-7539

Installation Instructions

Wiring
Two conductor non-metallic sheath cable with ground wire is recommended

for recessed installation of these heaters while two conductor, metallic
sheath cable (BX) is recommended for surface installations. Use
number 12 gauge wire for all models. Each heater should be on an
individual, properly fused circuit.

Recessed Installation

1. Allow 12” (30cm) of service cable for connecting to wall box. Remove
6” (15cm) of the outer jacket and strip the individual conductors 1/4”
(6mm) from the end.

2. Cut a wall opening 14 9/16” (37cm) high by 11 1/4” (28.5cm) wide
(see Fig 1). Allow a minimum of 2” (5cm) clearance around wall
opening to accomodate heater frame. Depth of wall opening must
be 3 1/4” (8.3cm) minimum, measured from finished wall surface.

3. Remove the screws securing heater assembly to the wall box and
separate. Keep all screws for heater reassembly.

4. Remove rear knockout at top corner of wall box and insert 1/2 cable
connector. Bring service leads through connector and secure end of
cable to the connector.

5. For safety, each wall heater is provided with a grounding screw located
in the upper right corner of the wall box. Connect ground lead and
tighten screw for good electrical connection.

6. Place wall box in wall opening so the welded side brackets rest on
finished wall surface, and secure box with four #10 Philips head wood
screws, 1 1/2” long (not provided). Insert the wood screws through
the inner set of flange holes at both top and bottom.

Alternate holes are provided in sides of box for mounting to wood
framing. (If wall box is installed prior to application of finished wall
surface, set box to allow for wall thickness).

NOTE: When mounting wall box to hard wall surface, predrill mounting

and clearance holes to prevent splitting wall surface.

7. Check nameplate on heater to make sure you are connecting to the

Series EWA-C, 1, 1.5 & 2 KW

proper voltage. Remove any packing material or debris from the
heater assembly and wall box. Then connect service leads.

8. Place heater assembly into the wall box. Check fan to see that it
turns freely, and service leads are clear of fan area. Secure heater
assembly to the wall box with four sheet metal screws (provided).

9. Carefully position grille over heater assembly so that protruding switch
and thermostat shaft do not bind against grille. Secure grille to heater
assembly using two Phillips head sheet metal screws (provided).
Push press-fit thermostat knob on shaft.

10. Install the frame to the grille, securing its upper back edge behind
the lip on the top of the wall box, and its lower edge with the single
screw.

11. Energize heater circuit and test heater (see operating instructions).

Surface Installation

1. Allow 25” (63cm) of service cable for connecting the heater (see
Fig. 2). Remove all but 2” (5cm) of outer jacket and strip individual
conductors 1/4” (6mm) from end.

2. Mount surface box to the wall using the four provided #8 - 3/4” Philips
head wood screws, inserted through mounting holes on the back
side flanges. (For hard wall surfaces, pre-drill mounting holes to
prevent splitting wall surface.)

3. Install 1/2 cable connector in hole on bottom of surface box near
right side. Feed service leads through and secure end of cable to
the connector.

4. Remove the rear knockout on top of heater wall box near right side
and insert bushing (provided). Feed service wires through bushing.
Secure wall box to surface box with four sheet metal screws (provided
with the surface box). Screws are inserted through the inside holes
on the flanges.

5. Proceed with steps 7 through 11 inclusive in recessed heater
installation instructions.

Operating Instructions

These heaters are operated by an on/off switch and also a
temperature control with a knob.

RECESSED

FRAME

THERMOSTAT

KNOB

GRILL

PHILLIPS

HEAD

SCREW

3 1/4”MINIMUM

GROUNDING SCREW

OVERTEMP LIGHT

120/208/240V

WALL OPENING

HEATER

ASSEMBLY

Fig. 1

11 1/4”

REMOVE THIS

KNOCKOUT

12” CABLE

WALL OPENING

14 9/16”

PHILLIPS HEAD

SCREW

WALL BOX

1. Turn the switch ON. Remember there is a fan delay.

2. Set thermostat by turning the knob to desired room comfort level
(clockwise to increase heat output). Once you have determined
the proper setting to provide the heat level you prefer, you need not
touch the knob again.

3. Turn the switch OFF to turn off heater. To reuse, simply turn the
switch ON - the temperature level you wish has been previously
set.
NOTE: This heater is equipped with a fan delay switch which delays
the fan operation until the heating grid has heated sufficiently to
assure the circulation of only warm air. This same switch permits
the fan to operate after power to the grid has been shut off by
thermostat action, thus utilizing all the heat remaining in the grid.
When the heater is shut down by turning the switch OFF, power to
both fan motor and element is diconnected and the fan motor will
not continue to operate.

WARNING: Should the OVERTEMP light come on, disconnect power to

the heater, turn the switch OFF or turn down the thermostat fully
counterclockwise and call a licenced electrician. DO NOT USE
HEATER UNTIL PROBLEM IS DETERMINED AND FIXED.

SPECIFICATIONS AND ORDERING INFORMATION

CATALOG No. SUPPLY VOLTS AMPS. CFM

1.0 kW EWA10C11 120V 8.3 50
3413 BTU EWA10C21 208V 4.8 50

EWA10C31 240V 4.2 50
EWA10C41 277V 3.6 50

1.5 kW EWA15C11 120V 12.5 50
5122 BTU EWA15C21 208V 7.2 50

EWA15C31 240V 6.2 50
EWA15C41 277V 5.4 50

Tamper Proof Models
The ON/OFF switch and the temperature regulating thermostat are

recessed so that the continuous grille front panel can be installed
concealing both controls. The thermostat is operated by removing the
front panel. The ON/OFF switch can be operated by inserting a slender
non metallic rod between grill louvers and turning the switch ON or
OFF.

Maintenance

This heater requires no maintenance other than a cleaning at least once a
year.

CAUTION: Before removing heater parts, open branch service switch
or remove fuses. These are located at the distribution panel.

To clean, remove frame, grille and heater assembly. Remove any dust
and dirt from wall box and heater assembly with a soft cloth or brush,
then re-install heater assembly making sure that the fan turns freely
and service leads are away from fan area. The frame and grille may
be washed with a mild detergent, however make sure they are thoroughly
rinsed and dried before re-installation.

SURFACE

WOOD SCREW

BUSHING

GROUNDING

SCREW

SURFACE WALL

BOX

25” SERVICE

LEADS

2.0 kW EWA20C21 208V 9.6 50
6830 BTU EWA20C31 240V 8.3 50

Wall Box Opening: 14 9/16” (37cm) height, 11 1/4” (28.5cm)
Front Plate: 16 3/8” (41.6cm) height, 13” (33cm) width,
Field Installed Accessories:

1. When installing optional wall thermostat, unit mounted thermostat must be
set at it’s highest setting.

2. All external control equipment (shown with dashed lines) furnished by
customer. Control wiring must be suitable for 600V.

3. Heater branch circuits shall have a carrying capacity of no less than 125% of
maximum load served.

4. All external wiring to the heater shall be in compliance with the National
Electrical Code pr the Appliance Codes.

EWA20C41 277V 7.2 50

width, 3 1/2” (8.5cm) depth

extends 1 3/4” (4.5cm) from wall (recessed)

8754 - Surface Mounting Box Kit
TGKSB - Tamper Proof Grille/Controls Kit

WALL STAT

(OPTIONAL)

SHEET METAL

SCREW

REMOVE THIS

KNOCKOUT

SERVICE CABLE

HEATER WALL BOX

ELECTRICAL SERVICE PER NAMEPLATE

SWITCH

CAPACITOR

THERMOSTAT

Fig. 2

THERMOSTAT

M

GRID

FAN

CONTROL

LIMIT

CONTROL

7204380100 REV04