Dimplex EWA30C21, EWA30C31, EWA30C41, EWA40C21, EWA40C31 Installation Instructions Manual
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Down-Flo Wall Heater
EWA-C, 3 & 4 kW Series
IMPORTANT INSTRUCTIONS
When using electrical appliances, basic precautions should always
be followed to reduce the risk of re, electric shock, and injury to
persons, including the following:
1. Read all instructions before using the heater.
2. The heater is hot when in use. To avoid burns, do not let bare
skin touch hot surfaces. The trim around the heater outlet becomes hot during heater operation. Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, and
curtains at least 3 ft (0.9 m) from the front of the unit and keep
them away from the sides and rear.
3. Extreme caution is necessary when any heater is used by or
near children or invalids and whenever the unit is left operating
and unattended.
4. Do not operate any heater after it malfunctions. Disconnect
power at the service panel and have the heater inspected by a
reputable electrician before reusing.
5. Do not use outdoors.
6. To disconnect the unit, turn the controls off, and then switch off
at main power supply panel.
7. Do not insert or allow foreign objects to enter any ventilation or
exhaust opening as this may cause an electric shock or re, or
damage to the heater.
8. To prevent a possible re, do not block air intake or exhaust in
any manner.
9. All electrical heaters have hot and arcing or sparking parts
inside. Do not use in areas where gasoline, paint, or ammable
liquids are used or stored.
10. Do not modify this heater. Use it only as described in this
manual. Any other use not recommended by the manufacturer
may cause re, electric shock or injury to persons.
SAVE THESE INSTRUCTIONS
Installation Instructions
WARNING: To reduce the risk of re, do not store or use
gasoline or other ammable vapors or liquids in the vicinity of
the heater.
CAUTION: High temperature, risk of re, keep electrical
cords, drapery, furnishings, and other combustibles at
least 3 feet (0.9 m) from the front of the heater.
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 18 1/4” (46cm) high by 14 1/4” (36cm)
wide (see Figure 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 nished 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 nished 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 ange 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
nished 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 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-t 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 30” (76cm) of service cable for connecting the
heater (see Figure 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 anges. (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 anges.
5. Proceed with steps 7 through 11 inclusive in recessed
heater 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
7204390100R07
Figure 1: RECESSED
GROUNDING SCREW
GRILL
FRAME
THERMOSTAT
KNOB
3 1/4”MINIMUM
OVERTEMP LIGHT
120/208/240V
WALL OPENING
WALL BOX
HEATER
ASSEMBLY
Figure 3
14 1/4”
12” CABLE
WALL OPENING
18 1/4”
REMOVE THIS
KNOCKOUT
PHILLIPS HEAD
SCREW
fused circuit.
WARNING: Wiring procedures and connections should
be in accordance with the National Electric code (NEC) and
local codes.
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.
Figure 2: Surface
GROUNDING
SCREW
SHEET METAL
SCREW
SURFACE
WALL BOX
REMOVE THIS
KNOCKOUT
HEATER WALL BOX
25” SERVICE
LEADS
SERVICE CABLE
Operation
WARNING: This heater must be properly installed before
it is used.
These heaters are operated by an on/off switch and also a
temperature control with a knob.
1. Turn the switch ON. Remember there is a fan delay.
2. Set thermostat by turning the knob to desired room com-
fort 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 sufciently 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.
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
grille louvers and turning the switch ON or OFF.
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