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.
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.
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.
SWITCH
FAN
CONTROL
LIMIT
CONTROL
THERMOSTAT
GRID
ELECTRICAL SERVICE PER NAMEPLATE
WALL STAT
(OPTIONAL)
THERMOSTAT
M
SURFACE
SPECIFICATIONS AND ORDERING INFORMATION
Wall Box Opening: 14 9/16” (37cm) height, 11 1/4” (28.5cm)
width, 3 1/2” (8.5cm) depth
Front Plate: 16 3/8” (41.6cm) height, 13” (33cm) width,
extends 1 3/4” (4.5cm) from wall (recessed)
Field Installed Accessories:
8754 - Surface Mounting Box Kit
TGKSB - Tamper Proof Grille/Controls Kit
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
2.0 kW
EWA20C21
208V
9.6
50
6830 BTU
EWA20C31
240V
8.3
50
EWA20C41
277V
7.2
50
Fig. 2
HEATER WALL BOX
SHEET METAL
SCREW
GROUNDING
SCREW
BUSHING
WOOD SCREW
SURFACE WALL
BOX
REMOVE THIS
KNOCKOUT
SERVICE CABLE
25” SERVICE
LEADS
7204380100 REV04
CAPACITOR