Installation Guide
2. Drill hole in wall (or floor) at desired location for power supply
entry. Install power supply wiring to heater and thermostat lo-
c
ation as determined by thermostat option selected. Allow ap-
proximately 10 to 12in (254mm to 305mm) of wire at heater for
connections.
3. If any accessories are to be used with this heater, refer to in-
stallation instructions provided with the accessory for proper
installation and wiring. Visit www.marleymep.com for instruc-
tions on some common accessories.
4. Wireway Cover - Commercial Baseboard Only
a. The wireway cover is a factory installed feature of Marley
commercial baseboard heaters. Two cables or four individ-
ual conductors plus two ground wires may be routed
through the wireway. Refer to page 2, Table 1 for wire size
and current loads.
b. To gain access to wireway, lay heater face down and re-
move the screws holding the wireway from the back of the
heater. Remove the knockouts in the channel areas of both
terminal boxes.
c. Insert the plastic bushings from the parts kit (in wiring com-
partment) in the knockout holes.
d. Wire heater according to wiring diagrams in Figure 5. Reat-
tach the wireway cover using the screws.
5. Loosen screw in built-in cable clamp (Figure 4) or remove de-
sired knockout from heater wiring compartment. Install power
cable into wiring compartment allowing at least 6 in (153mm)
of cable for connection to heater. To install two power cables
using the built-in cable clamp, bend tab covering second hole
up and back to rear wall of wiring compartment. If built-in
cable clamp is not used, install approved cable restraint (not
included ) in desired knockout.
6. Position heater at desired location and attach to wall using
wood screws or appropriate hardware.
Note: cross stamped mounting perforations are provided in back
of heater enclosure above heating element at mounting screw lo-
cations, see Figure 4.
Locate studs and drive screws into studs where possible. For
heaters up to 6 feet (1.8 m) in length, one screw at each end is
adequate. For longer units, an additional screw in center is re-
quired. Tighten screws and then loosen screws at least ¼ turn
to allow heater to expand and contract during use. If unit is
mounted above floor, two additional mounting holes are sup-
plied at each end below the heating element (see Figure 4).
Install an additional screw at each end for stability making sure
to loosen each screw at least ¼ turn.
7. Connect the supply cable grounding wire to the bare copper
pigtail in wiring compartment.
8. After making sure the electrical power coming to the heater is
t
urned off at main switch panel follow the desired wiring dia-
gram, as shown in Figure 5, to connect the power supply to
the heater using approved wire nuts.
NOTE: When accessories are installed, use wiring diagram
supplied with the accessory.
9. If front cover was removed, reinstall by hooking the top edge
on the support bracket(s). Then push down to latch onto the
support bracket(s).
10.Replace wiring compartment cover.
11.Follow instructions accompanying thermostat for installation
and wiring thermostat. Visit www.marleymep.com for typical
thermostat wiring diagrams.
OPERATION
1. After the baseboard system has been completely installed, all
thermostats should be turned to LOW or NO HEAT. Then turn
on breakers. Wait 3 to 5 minutes and check to see that none
of the heaters are operating. If operating, disconnect power
and check wiring. If none are operating then turn thermostats
to highest position and wait 3 to 5 minutes. Check to see that
all heater(s) are operating. Should any not be operating, dis-
connect power and check wiring.
2. Allow entire system to operate steadily for 1/2 hour. This
should remove oily residue from manufacturing. (Some
smoking may occur).
3. Select the setting for comfort on all thermostats.
CLEANING
Because of the convection heating principle which depends on air
circulation through the finned element, dust will collect between
the fins. The heater should be cleaned regularly for maximum ef-
ficiency. Before cleaning be sure the heater is off and the ele-
ment is cool. A vacuum cleaner with a brush attachment may be
used for cleaning. The finish of the heater may be cleaned with a
slightly damp rag if desired.
PAINTING
Painting of this baseboard is not necessary unless to match room
decor. To paint, first rough up the exterior with steel wool. Paint
only the exterior of the cabinet. Do not allow paint on the element
and safety limit capillary tube (Figure 4). Use a high quality
enamel paint.
TO PREVENT A POSSIBLE FIRE, MAKE SURE ALL WIRE
CONNECTIONS ARE TIGHT.
WARNING
!
CAUTION
!
WHEN USING BOTTOM MOUNTING HOLES, (TO PREVENT
A POSSIBLE SHOCK OR FIRE HAZARD,) MAKE SURE YOU
DO NOT DRIVE THE SCREWS THROUGH OR DAMAGE THE
POWER SUPPLY WIRE.
Figure 4: Left Side Wiring Compartment Shown
Bottom mounting holes
Built in cable clamp
Mounting perforations
Safety limit
DO NOT
BYPASS
Capillary tube