RADIANT
PLUG-IN HEATERS
Dear Owner,
Congratulations! Thank you for purchasing this new heater manufactured by Marley Engineered Products. You have made
a wise investment selecting the highest quality product in the heating industry. Please carefully read the installation and
maintenance instructions shown in this manual. You should enjoy years of efficient heating comfort with this product from
Marley Engineered Products... the industry’s leader in design, manufacturing, quality and service.
... The Employees of Marley Engineered Products
Read Carefully - This instruction sheet contains vital
information for the proper installation, use, and efficient oper-
ation of the heater described. Carefully read this manual
before installation, cleaning, or operation of the heater.
Failure to adhere to the instructions could result in fire, elec-
trical shock, death, serious personal injury, or property dam-
age. Save these instructions and review frequently for con-
tinuing safe operation and instructing future users.
CAUTION - TO REDUCE RISK OF FIRE AND ELECTRIC
SHOCK:
General:
1. Always unplug heater from outlet before servicing or replacing
elements.
2. This heater is a major electrical appliance and requires ade-
quate electrical power for safe use. The outlet to which the
heater is connected must be grounded and must match the con-
figuration and rating of the plug. The installation must conform
to the National Electrical Code and local requirements. No other
major electrical appliance should be operated on the same cir-
cuit as the heater.
3. Plug heater power cord directly into the electrical outlet. Never
use an extension cord with this heater. Always unplug power
cord from outlet when not in use.
4. Do not allow power cord to touch the heater surface during use.
The cord could be damaged.
5. This heater is NOT suitable for use in hazardous or corrosive
atmospheres as described by the NFPA. Do not use in areas
where gasoline, paints, or other flammable liquids are used or
stored.
6. For indoor use ONLY. Never use outdoors.
7. The heater surfaces will become hot during use. To avoid burns,
unplug and allow heater to cool before touching any heater sur-
face.
8. Verify electrical power provided to heater outlet matches the
voltage rating printed on the heater nameplate before energiz-
ing heater.
For Ceiling Suspended Use:
9. The mounting surface and anchoring hardware must be capable
of reliably supporting the total weight of the heater and any
accessories.
10. Minimum clearances, as specified, must be maintained. Keep
combustible material, such as boxes, crates, etc. away from
heater. Maintain at least 6 feet clearance from direct heat rays
and material that may be damaged by heat.
For Cart Mounting Use:
Special Note: This heater is not UL Listed for use as a cart
mounted heater. The UL Listing requires the unit be sus-
pended at least 6 feet from floor.
11. When this heater is to be cart mounted, special care must be
taken to keep combustibles away from the heater. It is recom-
mended that all materials be kept at least 6 feet (72”) from the
front of the heater at all times.
12. Make sure heater is stable to prevent it from falling over.
13. Do not allow heater to operate while unattended. Do not attempt
repositioning heater with power applied.
14. When not in use, always unplug power cord from outlet.
15. If power cord or heater becomes damaged, unplug and discon-
tinue using the heater until repaired.
Installation & Maintenance Instructions
SAVE THESE INSTRUCTIONS
WARNING
!
MODEL
NO. VOLTS WATTS AMPS BTU/HR
RR22012 120 2000 16.7 6825
RR35724 240 5700 23.8 19450
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