Dimplex CKHA20D31, CKHA20D31W, RKHA20D31W Instruction Manual
Kickspace Heater
CKHA/RKHA Series
IMPORTANT INSTRUCTIONS
When using electrical appliances, basic precautions should al-
ways 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 ex-
haust 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 manufac-
turer may cause re, electric shock or injury to persons.
cured under wire clamps.
!
NOTE: Air and grille temperatures conform to CSA & UL
regulations but may discolour certain materials, particularly
those materials incorporating clear vinyl. Materials should
be checked prior to installation to determine if discolouration or distortion would occur in the vicinity of 60° C (140°
F)
Kickspace Installation
!
NOTE: Unit should be installed so that it is not directly
under sink or other frequently used work area as air tempera-
ture may be uncomfortably warm. Also, if carpeting is on oor,
mount unit so bottom of grille is level or above the top of the
carpet pile.
1. Measure area of intended use. If there is not sufcient
room for the grille frame, the frame may be removed by removing grille frame from heater (screw “A”), remove frame
and re-insert grille.
2. Cut 22 ⅜ in (568 mm) x 3 ⅝ in (92 mm) opening (Figure
2). Keep clearance area free of obstructions.
3. Bring in service cable to left or rear of 10 in (254 mm)
minimum area as shown in Fig.2.
4. Remove heater cover and appropriate knockout. Attach
service cable to unit with approved connector and connect
FIGURE 1
Top Label
Heater Cover
Junction Box Cover
Screw ‘C’
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.
!
NOTE: It is extremely important to read all information la-
bels. Care must be taken to ensure that the heater is rated
the same voltage as the electrical supply wires. Failure to
do so could result in unsafe heater operation as well as
damage to the unit. If replacing an existing heater, check
the labels of the old heater to ensure the voltage of the new
heater is compatible.
!
NOTE: Care must be taken to prevent undue strain on all
wiring or heating element assembly, when removing and
re-assembling heating element assembly.
CAUTION: For eld rewiring to 120V all leads must be se-
Screw ‘A’
FIGURE 2
SERVICE
CABLE
KNOCKOUTS
10" MIN.
22"
Heater
Element
Screw‘B’
Grille
Trim Frame
22 3/8"
3 5/8"
3 1/2"
9 1/2"
7200960100R09
colour to colour in outlet box. To change wattage or voltage connections, see Figure 4.
5. Replace cover, slide unit into opening, and secure each
side (Figure 1).
!
NOTE: Make sure unit is installed right side up. Refer
to “TOP” label.
For inspection of eld wiring, see instruction under “Electrical
Inspection”.
SoftorStairRiserInstallation
1. Cut opening as for kickspace installation (22 ⅜ in (568
mm) x 3 ⅝ in (92 mm)). Allow ¾ in (19 mm) clearance
above cabinet doors. Add supports for unit (Figure 3).
2. Proceed as for kickspace installation. After securing unit in
opening, install combination of frame and grille (Figure 1).
Operation
WARNING: This heater must be properly installed before it
is used.
1. Prior to energization remove all construction dirt (plaster,
sawdust, etc.) from interior and exterior of heater.
2. Adjust thermostat with pliers. This unit is also controllable
from a line voltage wall thermostat or eld installed built-in
tamperproof single or double pole thermostat kit.
Dimplex kickspace heaters are designed and tested for safe
and trouble-free operation. All Dimplex kickspace heaters are
protected against overheating by a built-in thermal cutout.
Free airow throughout the heater is extremely important for
the most efcient operation of the heater. Restricted airow
may cause the thermal overload protector to cycle the heater
“ON and OFF”. A cycling heater will not supply sufcient heat
to the room.
Avoid direct contact of paper, fabric, or furniture with heater.
FIGURE 3
3/4
CEILING
GRILLE
HEATER
CABINET
DOOR
Maintenance
PARTITION OR
ADDED SUPPORT
MIN.
WARNING: Disconnect power and heater has cooled before attempting any maintenance or cleaning to reduce the
risk of re, electric shock or damage to persons.
Remove grille and frame by removing screws “A”. Remove
two screws “B”, and slide out heating assembly. When re-assembling, reverse the procedure above.
Cleaning
!
NOTE: This heater should not be operated with an accumulation of dust or dirt on or in the unit, as this can cause
a build up of heat and eventual damage. For this reason the
heater must be inspected regularly, depending upon conditions and at least at yearly intervals.
• With grille in place - Use vacuum cleaner hose to suck
out lint and dirt around grille. Reverse hose on vacuum to
use as a blower to move dust out of enclosure. Reverse
hose back to suck out dirt at front area of heater.
• With grille removed - Remove two screws “B” at bottom
front of heating element assembly. Pull gently to remove
it from enclosure. Swing assembly out. Vacuum inside
of enclosure and around heating element assembly. Reverse procedure above to re-assemble unit.
Figure 4
FACTORY CONNECTION
208/240 VOLT 675/900 WATTS
3.2 A / 3.7A
M
FAN
IMPORTANT: RETIGHTEN ALL LEADS WITH CABLE CLAMP AFTER RECONNECTING
UNINSULATED ENDS OF UNUSED LEADS WITH WIRE NUTS
FIELD CONNECTION
208/240 VOLT 1350/1800 WATTS
6.5 A / 7.5 A
FAN
SAFETY SWITCH SAFETY SWITCHSAFETY SWITCH
FIELD CONNECTION
120 VOLT
FAN
NOTE: If installing unit with factory thermostat, see supplemental wiring diagram, Fig. 4a.
MM
RATING CONNECT
450W/ 3.75A 7-8 (AS SHOWN)
900W/ 7.5A 7-8, 1-2
1350W/ 11.2A 7-8, 1-2, 3-4
1800W/ 15A 7-8, 1-2, 3-4, 5-6
Figure 4a
THERMOSTAT
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