Qmark CUS900 - Stock Cabinet Unit Heater - Manual

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 care-
fully read and follow 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 industry’s leader
in design, manufacturing, quality and service.
... The Employees of
Marley Engineered Products
Installation & Maintenance Instructions
WARNING
!
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.
TO REDUCE RISK OF FIRE AND ELECTRIC SHOCK:
1. Disconnect all power coming to the heater at main
service panel before wiring or servicing.
Note: More than one disconnect may be required.
2. All wiring must be in accordance with national and
local electric codes and the heater must be
grounded.
3. Verify the power supply voltage coming to heater
matches the ratings printed on the heater nameplate
before energizing.
4. This heater is hot when in use. To avoid burns, do
not let bare skin touch hot surfaces.
5. Do not insert or allow foreign objects to enter any
ventilation or exhaust opening as this may cause
electric shock, fire, or damage to heater.
6. Do not block air intakes or exhaust in any manner.
Keep combustible materials at least 24” (610 mm)
away from heater. Keep drapes at least 6” (153 mm)
above top of front discharge grille. Do not use
drapes above top discharge units. Do not install
behind doors, furniture, towel rack, or boxes.
7. A heater has hot and arcing (sparking) parts inside.
Do not use in areas where gasoline, paint, or
flammable liquids are used or stored.
8. Use this heater only as described in this manual. Any
other use not recommended by the manufacturer
may cause fire, electric shock, or injury.
9. This heater is not approved for use in corrosive
atmospheres such as marine, green house, or
chemical storage areas.
10. FOR DUCT CONNECTED HEATERS, Do not
exceed 0.2” wg. external static pressure and do not
mount heater on end panels.
11. Do not use OPTIONAL 0-100% OUTSIDE AIR
DAMPER with bottom air inlet.
SAVE THESE INSTRUCTION SHEETS
900 Series
Cabinet Unit Heaters
Model B
1