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5200-2286-004 U Series
Fan Forced Ceiling
Mounted Heaters
Dear Owner,
Congratulations! Thank you for purchasing this new heater manufactured by a division of Marley
Engineered Products. You have made a wise investment selecting the highest quality product in the heat-
ing industry. Please carefully read the installation and maintenance directions shown in this manual.
You should enjoy years of efficient heating comfort with this product from Marley Engineered Products...
the industrys leader in design, manufacturing, quality and service.
... The Employees of
Marley Engineered Products
Read Carefully -
These instructions are written to help
you prevent difficulties that might arise during installation
of heaters. Studying the instructions first may save you
considerable time and money later. Observe the following
procedures, and cut your installation time to a minimum.
1.
To prevent electrical shock, disconnect all power coming to
heater at main service panel before wiring or servicing.
2.
All wiring must be in accordance with the National and Local
Electrical Codes and the heater must be grounded as a pre-
caution against possible electric shock.
3.
Verify the power supply voltage coming to heater matches the
ratings printed on the heater nameplate before energizing.
4.
Do not operate heater without grille installed.
5.
Do not insert or allow foreign objects to enter any ventilation
or exhaust opening as this may cause an electric shock,
fire,or damage to the heater.
6.
To prevent a possible fire, do not block air intakes or exhaust
in any manner. Keep combustible materials, such as crates,
drapes, etc., away from heater.
7.
Aheater has hot and arcing or sparking parts inside. Do not
use it in areas where gasoline, paint, or flammable liquids are
stored.
8.
This heater is intended for ceiling installation only, at least 6
feet off the floor. Do not install in walls, floor, or other loca-
tions. Do not install closer than 12 to adjacent walls.
9.
Use this heater only as described in this manual. Any other
use not recommended by the manufacturer may cause fire,
electric shock, or injury to persons.
10. This heater is not approved for use in hazardous locations as
described by the National Fire Protection Association (NFPA)
nor in corrosive atmospheres such as marine, green house,
or chemical storage areas.
Installation & Maintenance Instructions
SAVE THESE INSTRUCTIONS
WARNING
1
!
Nameplate
Model No.
U1000
U1500
U2004
U2007
Catalog No.
SRC1012
SRC1512
SRC2024
SRC2027
Catalog No.
QCH1101
QCH1151
QCH1202
QCH1207
Watts
1000
1500
2000
2000
Volts
120
120
240
277
FILE#E21609 at least 6 (153mm) of cable inside the box. (See Fan Delay Notice.)
6.
Connect the supply cable ground wire to green ground screw
provided.
NOTE: Lead holes for a #8 sheet metal screw have been provided in the
sides of the back box. After the finished wall or ceiling has been put up,
drive a # 8(m4) sheet metal screw (recommended 1) through the side of
the box not mounted to the joist. This will prevent the back box from
pulling out when installing the heater assembly. (See Figure 1)
INSTALLATION OF BACK BOX
IN EXISTING CONSTRUCTION
1.
Carefully mark and cut a hole measuring 9-3/8" (235mm) wide by 11-
1/8" (283mm) long. One edge of the hole must be cut along the
edge of a joist.
2.
Proceed to No. 1 through 6 (Installation of Back Box in New
Construction).
INSTALLATION OF HEATER IN T-BAR CEILING
USING CATALOG NUMBER HTBF
1. Determine the desired location for the heater.
2. Remove heater from carton, remove front cover, heater assembly
from back box.
3. Remove T-Bar frame, envelope containing mounting screws from car-
ton.
4. Mount the heater backbox to the HTBF kit frame using the four
screws provided. Refer to figure 1A.
5. Place the HTBF frame with heater backbox installed in ceiling framing
and secure in position. Secure the frame to the building structure as
necessary using appropriate wire to prevent the heater and frame
from falling.
6. Bring power supply cable to heater location. Remove the desired
knockout in backbox and install cable using an appropriate cable
clamp, leaving at least six inches (153mm) of wire in box for connec-
tions.
NOTE: Power supply cable must enter backbox in location behind the
disconnect switch assembly.
7. Complete the installation by following steps 1 through 5 of the
"Installation and Wiring of Heater / Fan Assembly" section.
FIELD CONVERSION FOR LOWER WATTAGE RATING
NOTE: Refer to specification chart for lower wattage ratings which are
available.
To convert heater to lower wattage rating, completely remove red jumper
wire from both heating elements (See Figure 2). Discard this jumper. Be
sure remaining wires are securely connected.
INSTALLATION AND WIRING
OF HEATER / FAN ASSEMBLY
1.
Following wiring diagram (Figure 3) connect supply wiring and ther-
mostat wiring to heater lead wires in back box.
GENERAL
The heater is designed for recessed installation in 2 X 4 (50mm X
101mm) joist or larger ceiling section using the back box provided. The
heater may also be surface mounted by using the Surface Mounting
Frame. The heater is intended to be controlled by a single pole, wall
mounted thermostat (ordered separately). The heater may be wired with
standard building wire (60°C). (See Fan Delay Notice Above). Refer to
specification chart (see pg. 4) for correct supply voltage and wire size.
NOTE: The optimum mounting height for this heater is 8 (2440mm) from
floor to bottom of back box. In any case do not install closer than 6
(1830mm) from the floor, or closer than 12 (305mm) to adjacent walls.
INSTALLATION OF BACK BOX
IN NEW CONSTRUCTION
NOTE: If the finished ceiling surface is already up, follow instructions for
INSTALLATION OF BACK BOX IN EXISTING CONSTRUCTION.
1.
Determine which side of the back box is to be mounted against a
joist and bend the tabs at the rear corners out 90 degrees so that
the back box will be square with the joist after installation. (See
Figure 1).
2.
Remove one of the knockouts on socket side of the back box and
install a cable or conduit connector.
3.
Position back box against side of joist and secure using nails or screws
as shown in Figure 1.
NOTE: The back box must be installed with the front edge flush with the
finished surface.
4.
Run power supply cable through the connector, leaving about 8
(203mm)of wire inside the box.
5.
Run thermostat cable from wall thermostat to heater location leaving
AN ELECTRICAL SHOCK, FIRE, OR WATER DAMAGE COULD
RESULT IF WIRING OR PIPING IS DAMAGED DURING CUTTING.
MAKE SURE ALL WIRING AND PIPING ARE CLEAR OF AREA
BEFORE CUTTING.
HEATER MUST BE WIRED AS SHOWN IN WIRING DIAGRAM. SEE
FIG. 3. WIRING IN ANY OTHER MANNER MAY PREVENT HEATER
FROM OPERATING PROPERLY AND COULD LEAD TO PREMATURE
FAILURE OR A FIRE.
FOR CEILING MOUNTING ONLY. DO NOT INSTALL HEATER CLOS-
ER THAN 6(1830mm) TO THE FLOOR. DO NOT INSTALL CLOSER
THAN 12(305mm) TO ADJACENT WALL.
TO PREVENT HAZARD OF FIRE OR ELECTRICAL SHOCK, DO NOT
INSTALL WITHOUT BACK BOX. BACK BOX MUST BE SECURELY
MOUNTED TO BUILDING STRUCTURE. BUILDING STRUCTURE
MUST BE CAPABLE OF SUPPORTING THE HEATER AND ALL
ACCESSORIES (APPROX. 11LBS).
CAUTION
IMPORTANT
WARNING
CAUTION
WARNING
2
Figure 1
ceiling joist
!
!
!
A FAN DELAY IS STANDARD ON THIS HEATER. IN ORDER TO
HAVE THE FAN DELAY OPERATE CORRECTLY, SEPARATE WIRING
IS REQUIRED BETWEEN THE HEATER AND THE WALL THERMO-
STAT.
FAN DELAY NOTE:
!
!
Figure 1A
Risk of Fire Do not install heater closer than 12 inches (305mm) from
any wall.
Risk of Falling The heater backbox must be securely mounted to the
building structure and the building structure must be capable of sup-
porting the heater with all accessories. The heater weight with acces-
sories is at least 18 lbs.
WARNING
! HEATER CHECKOUT AND OPERATION
1.
After heater is completely assembled, rotate wall thermostat knob
counterclockwise until control stops. This is the minimum heat setting.
2.
Turn power supply to heater ON at main switch panel.
3.
Heater should not operate. If it operates, disconnect power and re-
check wiring.
4.
Rotate wall thermostat knob clockwise until it stops (maximum heat
setting) and wait at least 2 minutes. Fan control will delay fan coming
on until element is warm.
5.
If heater and fan do not come on, disconnect power and check wiring.
6.
Allow heater to continue to operate until room temperature reaches
desired comfort level. Then rotate wall thermostat knob counterclock-
wise slowly until thermostat clicks off. Fan must continue to operate
for a minute or so until element cools. If fan turns off immediately
when thermostat is turned off, disconnect power and check wiring.
(See Fan Delay Notice).
7.
It may be necessary to readjust thermostat a time or so until exact
comfort level is attained. Rotation in the clockwise direction will
increase the amount of time the heater will produce heat. Rotation in
the counterclockwise direction will reduce the amount of time the
heater is on.
NOTE: For best results, the heater should be left ON constantly during
the heating season as the thermostat, when properly se