This heater is designed to provide years of efficient, trouble free operation as a primary or supplementary heat source for comfort
heating in residential and commercial applications. CSH and DSH convector heaters must be thermostatically controlled for efficient,
safe operation. A thermostat is not provided with this heater. However, a single or double pole thermostat accessory is available
for installation into this heater at your place of purchase, or the heater may be connected to any suitable wall mounted thermostat
that will meet the electrical load requirements. Installation or use of this product in any manner not described herein will void the
warranty and could result in injury, damage to property, or permanent damage to heater.
WARNING
WHEN USING ELECTRICAL APPLIANCES, BASIC PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, AND INJURY TO
PERSONS, INCLUDING THE FOLLOWING:
1. Read all instructions before installing or using the heater.
2. A heater has hot and arcing or sparking parts inside. Do not
use in areas where gasoline or flammable liquids are used
or stored. Do not use in corrosive environment or any area
where explosive materials are used or stored.
3. This heater is hot when in use. To avoid burns, do not let
bare skin touch hot surfaces. Keep combustible materials,
such as furniture, pillows, bedding, papers, clothes, and curtains away from heater.
RECEIVING
Material when shipped was in good order and Marley
Engineered Products holds clear bill of lading, therefore any
concealed damage must be reported at once to the carrier for
inspection and settlement.
SAVE THESE INSTRUCTIONS
!
4. To prevent a possible fire, do not block air intakes or
exhaust in any manner.
5. Do not insert or allow foreign objects to enter any ventilation
or exhaust opening as this may cause an electric shock or
fire, or damage the heater.
6. Serious injury or death could result from electric shock.
Make sure electrical power supply circuit coming to heater
is disconnected at main disconnect or service panel before
installing or servicing this heater.
This heater is not for residential or household use.
7.
Note:
It is advisable to store cartons in a central area to be
drawn upon as needed per room requirements. If called for on
order, the cartons will have been tagged with proper room
number.
TO REDUCE THE RISK OF FIRE AND ELECTRIC SHOCK
OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
1. Serious injury or death could result from electric shock.
Make sure electrical power supply circuit coming to heater
is disconnected at main disconnect or service panel before
installing this heater.
2. Wiring procedures and connections must be in accordance
with the National Electrical Code (NEC) and local codes.
Refer to Wiring Diagram on heater and Figure 8 as well as
Tables B and C. Make sure all electrical connections are
tight to prevent possible overheating. Use Copper Supply
Wire Only.
3. Verify the electrical power supply voltage matches the voltage rating as printed on the heater nameplate.
CAUTION - Never connect a heater to a voltage greater than
the nameplate voltage as this will damage the heater and
could cause a fire.
4. Remove and discard foam packing material inside heater
before installing or energizing the heater.
5. Do not install the heater against combustible low-density
cellulose fiberboard surfaces, against or below vinyl wall
coverings, or below any materials that may be damaged by
heat such as vinyl or plastic blinds, curtains, etc. If heater
must be installed against vinyl surfaces or surfaces that
may be damaged by heat, Standoff Kits Cat. No. S01 or
S02 must be used. Refer to installations instructions
provided with these kits when installing.
6. Do not install heater below an electrical convenience receptacle (outlet).
CAUTION
7.
Electrical Cords (including telephone and computer cables),
Drapes, and Other Furnishings Away From Heater. For efficient and safe operation, we recommend maintaining a minimum of 6 inches (152 mm) clearance above and in front of
the heater at all times. See Clearances Chart for minimum
clearance requirements.
8. To reduce the risk of fire, do not store or use gasoline or
other flammable vapors or liquids in the vicinity of the
heater.
9. Do not install heater upside down or in any position other
than as shown in this manual.
10. Do not recess heater in wall or install heater inside any type
enclosure (unless specifically approved by the manufacturer) as this will cause heater to overheat and could create a
hazard.
11. When mounting heater, use care when drilling mounting
holes and mounting heater to building structure to avoid
damaging internal heater components. Be sure to loosen
mounting screws 1/4 to 3/4 turn to allow for expansion and
contraction.
12. Do not remove or bypass the safety limit control(s) as this
could allow heater to become a fire hazard – see heater
wiring diagram supplied with heater.
13. The factory installed wires inside wireway are used to connect the built-in controls. Limit the maximum current to no
more than 35 amps for CSH05 and DSH05 units and 45
amps for CSH07, DSH07, CSH14 and DSH14 units. Refer
to instructions and current capacity rating as provided with
the accessory.
– Heater Operates at High Temperatures. Keep
14. Heaters that are not installed end to end must have end
caps installed to cover exposed ends of heater. Heaters
joined together must have appropriate filler sections or
other approved assemblies (see Accessories Data listing
on Page 8) installed to cover exposed openings between
heaters.
15. All field wiring brought into the heater or any attached
accessories must be rated at least 75 °C.
16. Do not allow objects to be placed on top of heater as they
may be damaged or create a fire hazard.
17. Before energizing, make sure front cover is properly
installed onto the back housing along the entire length of
the heater – See Fig. 4. Do not operate heater without front
cover installed.
Rough-in Wiring
1. Run branch circuit of proper voltage and wire size to location
of left or right junction box as indicated on heater wiring diagram. Basic heaters are prewired and can be connected to
branch circuit at either end. Heaters with controls are
prewired for connection to branch circuit at one end only
(refer to heater wiring diagram), however, heater can be
wired from opposite end by running wire through heater wireway.
2. If it is necessary to run wires through the heater wireway,
use Table B to size the field installed wiring.
3. The factory installed wires in the heater wireway can be
loaded up to 35 amps in CSH05 and DSH05 units, and up to
45 amps in, CSH05, CSH14, DSH07 and DSH14 units.
Refer to Table C and D for maximum length of heater run
when the heaters are connected in parallel.
Table B. Sizing Field Installed Wiring
Copper Maximum no.
wire sizeof wires Up to 34 to 67 thru 9
75º Cin wirewayConductors Conductors Conductors
25 amps @ 120-277 VAC- see wiring diagram on heater
Disconnect switch
20 amps @ 120-277 VAC
4. Standard 75ºC wiring must be used in junction boxes, wireways, blank sections, filler sections, and corner sections.
Room Layout
Refer to heating plans for exact room arrangements of heaters
(with or without thermostat and/or relays and/or switches and
accessories.)
Check the heater section dimensions and the additional wall
length required for telescoping accessories (Figure 1) before
starting wall-to-wall type installation. Be certain all heaters and
accessories needed are at hand and are of correct finish.
10
N
7
N
3
Figure 1
Typical Installation
See page 9 for N dimensions
N
2
4
1
N
10
8
N
5
6
N
9
Figure 2
Mounting Height
At correct height, draw a pencil line on the wall, level and/or parallel with the window sill. Minimum mounting heights above the
floor shall be as follows:
Minimum Mounting Height Above Floor
Watts/Ft. Heater LengthBottom Inlet/Front Inlet
125, 188 and 250 Watts/Ft.1-3/4”0”
376, 500, 625, and 7503”0”
Watts/Ft.
Note:
Up to 3/4” thick floor covering, such as carpet, tiles,
linoleum, etc., may be installed around and under the heater
without adversely affecting the performance of the heaters.
Installation of Single Unit
Note:
For ease of installation, it is important that the sequence
of operations indicated below be followed in order.
1. Remove front cover by removing mounting screws (Figure
2).
2. Remove appropriate electrical knockout from either junction
box. See Figure 3 for location of knockouts.
3. Install end caps (must be purchased separately) on both
ends of the heater housing. Refer to Figure 4 for details of
end cap installation.
Figure 3
4
Figure 4
4. If filler section is desired to terminate the heater, install the
filler section in the end of the heater and extend to desired
length. Mark the mounting hole locations, remove the filler
section and drill the required mounting holes. Install the filler
section in the heater and the end cap on the filler section as
shown in Figure 2.
Note:
If a thermostat and/or disconnect switch are installed in
the heater left junction box, it may be necessary to cut away a
portion of the filler section to allow access to these controls
(Figure 2).
5 Position heater housing on wall to check for evenness of
wall. do not draw the heater against an uneven wall surface.
If an uneven wall is encountered, use shims to keep the
heater housing straight.
6. Run proper size branch circuit to the junction box through the
selected knockout.
7. Drill the required size mounting holes in the back of the
heater housing and install the housing on the wall using
screws, bolts or anchors (by installer) to suit the wall construction.
Note:
Predrilled 1/4” diameter mounting holes are provided in
each junction box. Additional mounting holes will have to be
drilled in the housing to support the weight of long length
heaters (6’ and longer). Do not drill any additional holes in the
junction boxes.
8.Tighten mounting screws and back off 1/4 to 3/4 turn to
allow for expansion and contraction of the heater.
9.Following the wiring diagram secured to the heater, make
electrical connections. Ground the heater using the ground
screws provided (Figure 2).
10. Replace front cover and secure with mounting screws. (See
Figure 2).
Figure 5
Installation of Multiple Wall to Wall Units
Note:
For ease of installation, it is important that the sequence
of operations indicated below be followed in order.
1. Remove all the front covers from the heaters by removing
mounting screws (Figure 2).
2. Refer to wiring diagram for power supply entry and remove
appropriate electrical knockout (Figure 3) from the heater in
which power supply connections are to be made. The power
supply may be brought in to the end of only one heater and
the remaining heaters may be connected in parallel using the
wireway. Use Table B to size the field installed wiring in the
wireway.
3. If conduit cover (must be purchased separately) is desired,
cut off the appropriate length and install to the wall.
4. If required by plan, install filler section (1, Figure 1) to either
heater (2) or (3) by means of four #6 screws supplied with
filler section. (Refer to Figure 5.) Discard filler section end
cap in this application.
Note:
Heaters may butt against each other, thus eliminating the
filler piece, if so desired.
Note:
If a heater has a disconnect switch and / or thermostat
and is to have a filler section or a corner section at the left end,
the section must be mounted to the heater since the thermostat
or disconnect switch will prevent the section from telescoping
into the heater.
5 If the wall run has inside or outside corners, install corner (4
and 5) to the heater (2 and 9) by means of four #6 screws
supplied with corner section. (Refer to Figure 5).
6. Install end caps (6) on the outer end of the last heater(7) and
(9) using four #6 screws supplied with end caps. (Refer to
Figure 4 for details of end cap installation.)
7. Drill the required size mounting holes in all the heater hous-
ings.
5
Note:
Predrilled 1/4” diameter mounting holes are provided in
each junction box. These holes may be used only when no slipin accessory is to be installed in that end of the heater ( such as
when heater(3 and 7) are butted together as shown in Figure 1).
Additional mounting holes will have to be drilled in the housing
to support the weight of long-length heaters (6’ and longer). Do
not drill any additional holes in junction boxes.
8.Check for evenness of wall. Do not draw the heaters
against an uneven wall surface. If an uneven wall is
encountered, use shims to keep the heater housing
straight.
9.Run proper size branch circuit to the junction box through
the selected knockout.
10. Mount the heater (2, Figure 1) on the wall using screws,
bolts or anchors (by installer) to suit the wall construction.
11. Telescope the heater housing (3) over the filler section (1)
by the desire amount and mount the housing to the wall.
12. Telescope the heater housing (8) over the corner section
(4) by the desired amount and mount the housing to the
wall.
13. Mount the remaining heaters as described above, making
sure that the heaters with end caps are installed at the end
of the run.
14. Blank sections, if any are installed in the same manner as
the heaters.
Note:
75ºC field wiring may be run through the blank sections,
filler sections and corner sections.
15. Control sections, if any, are installed in the same manner
as heaters. Refer to wiring diagram on control sections for
connecting the wiring to the heaters
Installation of Mullion to Mullion Units
The back of the heater housing contains no mounting holes
(other than those at the ends) and therefore is ideal for installation in front of glass curtain walls. The housing back presents
an attractive appearance when viewed from the outside through
the glass wall.
Installation procedures are similar to those for wall-to-wall installation (Step Six) except for the following differences.
1. Attach the housing to the mullion using the mounting holes
provided in the junction boxes as shown in Figure 6.
2. On horizontal mullion installation, install support brackets as
shown in Figure 7.
Figure 7
OPERATION INSTRUCTIONS
1. After heaters are completely assembled and installed, set
thermostat or operating controls for NO HEAT and energize
heater circuit (s). Verify the heaters are not producing heat.
2. Adjust thermostat or operating control to call for heat. Allow
heater(s) to operate for a few minutes and verify the heaters
are producing heat.
3. The thermostat or operating controls may be adjusted to
cycle the heater(s) on and off to maintain the desired room
temperature.
Note:
If built-in thermostat is provided, rotation in the clockwise
direction will allow heater to remain on MORE and will maintain a higher room ambient. Likewise, rotation in the counterclockwise direction will result in the heater remaining on
LESS and the room ambient will be lower. If remote thermostat or other types of controls are provided, refer to the
instructions provided with these controls for proper operation.
Figure 6
6
Figure 8 - Wiring Diagram
MAINTENANCE INSTRUCTIONS
For efficient and safe operation and to extend the life of the
heaters, they should be cleaned and inspected for damage at
least annually (preferably at the beginning of the heat season)
or more often in dirty environments. Other than cleaning, your
heaters require no other preventative maintenance. The user
and / or cleaning personnel can perform routine cleaning of the
heater that may be done without disassembly of the heater.
However, any cleaning or servicing that requires disassembly of
the heater must be done by qualified service personnel.
SERIOUS INJURY OR DEATH COULD RESULT FROM
ELECTRIC SHOCK. MAKE SURE ELECTRICAL POWER
SUPPLY CIRCUIT(S) COMING TO HEATER IS/ARE DISCONNECTED AT MAIN DISCONNECT OR SERVICE PANEL
BEFORE CLEANING OR SERVICING THIS HEATER.
ALLOW HEATER TO COOL BEFORE CLEANING TO PREVENT A POSSIBLE BURN.
NOTE:
HEATER. BE SURE ALL POWER IS DISCONNECTED TO
HEATER BEFORE CLEANING OR SERVICING.
1. Heater cabinet may be cleaned using a damp cloth to
2. A vacuum cleaner and /or compressed air may be used to
FINS ARE SHARP AND MAY CAUSE CUTS SO AVOID
CONTACT.
3. After cleaning and servicing, always reassemble replacing
MORE THAN ONE POWER SOURCE MAY ENTER
remove dust that may have accumulated on surfaces. Do
not use harsh cleaners and waxes on surfaces since these
could damage the finish or discolor in use.
remove dust and lint that may have accumulated inside
heater around element fins. If heater must be disassembled
for cleaning, use care when cleaning element fins to avoiding
damaging fins.
any hardware removed and check units to make sure they
are operating properly.
789
RENEWAL PARTS IDENTIFICATION CSHCSA, DSHCSA
For part numbers, refer to the Renewal
arts Identification covering the appro-
P
priate height heater (7” or 14”), and
then select the front, back panel, or
grille listed under the 28” length.
* Add suffix “1” for bottom inlet top outlet.
Add suffix “3” for bottom inlet front outlet.
† Intended for the installation of components.
(R) Suffix on catalog number refers to accessories with 120 VAC receptacle.
* Add suffix “1” for bottom inlet, top outlet, add suffix “2” for front inlet, top outlet.
† Intended for the installation of components.
(R) Suffix on catalog number refers to accessories with 120 VAC receptacle.