Dimplex RFF Series Installation Instructions

Forced Air Heater
RFF Series

imPORTAnT inSTRUCTiOnS

When using electrical appliances, basic precautions should
always be followed to reduce the risk of fire, electric shock
and injury to person, including the following:
1. Read all instructions before using this heater.
2. A heater has hot and arcing or sparking parts inside. Do
not use it in area s where gasoline, paint or flammable
liquids are used or stored.
3. This heater is hot when in use. To avoid burns, do not let
bare skin touch hot surfaces. If provided, use handles
when moving this heater. Keep combustible materials
such as: furniture, pillows, bedding, papers, clothes and
curtains away from heater.
4. To prevent a possible fire, do not block air intakes or
exhaust in any manner. Do not use on soft surfaces like a
bed where openings may become blocked.
5. Do not insert or allow foreign objects to enter any venti-
lation or exhaust opening as this may cause an electric
shock or fire, or damage the heater.

SAvE THESE inSTRUCTiOnS

installation instructions

WARning: Wiring procedures and connections should be
in accordance with the National Electric code (NEC) and local
codes.
!
nOTE: Each heater comes as two packages: the main
heater assembly and the associated grille kit.
CAUTiOn: Do not operate heater without the Grille
installed.
1. Remove the main heater assembly from the carton.
Remove the screws securing heater assembly and retaining
brackets to the recess box and separate. (Figure 1)
!
nOTE: Mount the heater a minimum of 12 inches (30.5
cm) from the finished floor.
Recessed installation
2. The recess box provided with the heater is
designed for attachment between studs placed on
32 inch (81 cm) centres. If different spacing exists,
construct frame to suit the box in order to avoid
any vibration and noise caused by loose mounting.
3. Note orientation of box ("TOP" shown on recess
box) and secure to studs using four (4) holes
provided on side flanges, ensuring these flanges
are flush with finished surface of wall. (Figure 2)
Surface installation
2. Secure optional surface mount box (Part No.
RFFP8C) by angling screws through holes
provided in rear of surface box into studs or
finished surface.
3. Position recess box into surface box and secure
with four (4) screws provided in parts bag of
surface box.
Supply Wiring and Heater installation
4. Insert approximately 15 inches (38 cm) of supply
wire into recess box through knockout provided in
upper left hand corner. Wire should be rated for a
minimum of 90 C (194
o
5. Connect power supply to terminals provided marked
L1 and L2. Ground wire should be secured to green
ground screw provided on side of heater assembly.
F).
o
Figure 1
Recess Box
6. All units are factory pre-wired for operation with a
built-in thermostat. If remote thermostat operation is
required, follow appropriate wiring diagram located
on inside of recess box.
!
nOTE: All wiring must comply with the National Electrical
Code and local codes.
7. Secure heater assembly and retaining brackets to
the recess box using the screws that were previously
removed.
Front Panel installation
8. Remove trim frame and front panel (grille) from the carton.
9. If tamper proof built-in or remote thermostat operation
is required, secure the louvered door to the front panel
using two (2) M3 screws (not included) through the holes
provided. The knob can then be removed and adjustment
of the thermostat can be made using needle nose pliers
through the front panel.
!
nOTE: 347V/600V units come a grille which is tamper
proof.
10. Install the front panel on the heater assembly. Check to
see that the fan blade is free to turn and that no residue
remains in the unit. Front panel can then be secured to
assembly using eight (8) M4.8 x 37 screws provided.
11. Follow the steps as shown in Figure 3.
Figure 2
Finished Wall
Surface
15" (38 cm)
Side Flanges
Finished Floor
!
nOTE:
Dimensions are shown as size
of rough opening in stud wall.
Heater
Assembly
30"
7/8" (22 mm)
(76 cm)
Dia. Knockout
3 5/8"
(9 cm)
19 3/4"
(50 cm)
(30.5 cm)
7211920100R00
Min. 12"