Rheem RJNL-A036CK Installation Instructions Manual page 4

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WARNING
DO NOT, UNDER ANY CIRCUMSTANCES, CONNECT RETURN DUCTWORK TO
ANY OTHER HEAT PRODUCING DEVICE SUCH AS A FIREPLACE INSERT,
STOVE, ETC. UNAUTHORIZED USE OF SUCH DEVICES MAY RESULT IN FIRE,
CARBON MONOXIDE POISONING, EXPLOSION, PROPERTY DAMAGE,
SEVERE PERSONAL INJURY OR DEATH.
WARNING
THE UNIT MUST BE PERMANENTLY GROUNDED. A GROUNDING LUG IS PRO-
VIDED IN THE ELECTRIC HEAT KIT FOR A GROUND WIRE. (SEE FIGURES 16
AND 17.) FAILURE TO GROUND THIS UNIT CAN RESULT IN FIRE OR ELECTRI-
CAL SHOCK CAUSING PROPERTY DAMAGE, SEVERE PERSONAL INJURY OR
DEATH.
WARNING
ONLY ELECTRIC HEATER KITS SUPPLIED BY THIS MANUFACTURER AS
DESCRIBED IN THIS PUBLICATION HAVE BEEN DESIGNED, TESTED, AND
EVALUATED BY A NATIONALLY RECOGNIZED SAFETY TESTING AGENCY
FOR USE WITH THIS UNIT. USE OF ANY OTHER MANUFACTURED ELECTRIC
HEATERS INSTALLED WITHIN THIS UNIT MAY CAUSE HAZARDOUS CONDI-
TIONS RESULTING IN PROPERTY DAMAGE, FIRE, BODILY INJURY OR
DEATH.
WARNING
PROPOSITION 65: THIS APPLIANCE CONTAINS FIBERGLASS INSULATION.
RESPIRABLE PARTICLES OF FIBERGLASS ARE KNOWN TO THE STATE OF
CALIFORNIA TO CAUSE CANCER.
CAUTION
R-410A systems operate at higher pressures than R-22 systems. Do not use
R-22 service equipment or components on R-410A equipment.