Mr. Heater MHU 50 User Manual
E-2
Compact Unit / Utility Heater
Operating Instructions and Owner’s Manual
GENERAL HAZARD WARNING:
FAILURE TO COMPLY WITH THE PRECAUTIONS AND
INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN
RESULT IN DEATH, SERIOUS BODILY INJURY AND
PROPERTY LOSS OR DAMAGE FROM HAZARDS OF
FIRE, EXPLOSION, BURN, ASPHYXIATION, CARBON
MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK.
RESULT IN DEATH, SERIOUS BODILY INJURY AND
PROPERTY LOSS OR DAMAGE FROM HAZARDS OF
FIRE, EXPLOSION, BURN, ASPHYXIATION, CARBON
MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK.
ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW
THE INSTRUCTIONS SHOULD USE OR SERVICE THIS
HEATER.
HEATER.
IF YOU NEED ASSISTANCE OR HEATER INFORMATION
SUCH AS AN INSTRUCTION MANUAL, LABELS, ETC.
CONTACT THE MANUFACTURER.
CONTACT THE MANUFACTURER.
WARNING:
FIRE, BURN, INHALATION, AND EXPLOSION HAZARD.
KEEP SOLID COMBUSTIBLES, SUCH AS BUILDING
MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS RECOMMENDED BY THE
INSTRUCTIONS NEVER USE THE HEATER IN SPACES
WHICH DO OR MAY CONTAIN VOLATILE OR AIRBORNE
COMBUSTIBLES, OR PRODUCTS SUCH AS GASOLINE,
SOLVENTS, PAINT THINNER, DUST PARTICLES OR
UNKNOWN CHEMICALS.
MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE
AWAY FROM THE HEATER AS RECOMMENDED BY THE
INSTRUCTIONS NEVER USE THE HEATER IN SPACES
WHICH DO OR MAY CONTAIN VOLATILE OR AIRBORNE
COMBUSTIBLES, OR PRODUCTS SUCH AS GASOLINE,
SOLVENTS, PAINT THINNER, DUST PARTICLES OR
UNKNOWN CHEMICALS.
WARNING:
YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS,
SO PLEASE READ THESE INSTRUCTIONS BEFORE YOU
OPERATE THIS HEATER.
OPERATE THIS HEATER.
CONTENTS
UNIT DIMENSIONS ................................................................E-4
SHIPPING ...............................................................................E-5
REQUIREMENTS .....................................................................E-5
UNIT HEATER INSTALLATION..................................................E-6
COMBUSTION & VENTILATION AIR ........................................E-6
VENTING .......................................................................... E-6-10
ELECTRICAL CONNECTIONS ................................................. E-10
GAS CONNECTION ...............................................................E-11
LEAK CHECK .........................................................................E-11
START-UP OPERATION ...........................................................E-11
HEATING SEQUENCE OF OPERATION ................................... E-12
IGNITION CONTROL LED ...................................................... E-12
ADJUSTMENTS..................................................................... E-12
SERVICE ............................................................................... E-13
WIRING DIAGRAM ............................................................... E-13
PARTS LIST ........................................................................... E-14
WARRANTY ......................................................................... E-16
THE STATE OF CALIFORNIA REQUIRES THE FOLLOWING WARNINGS:
WARNING:
Combustion by-products produced when using this product contain carbon monoxide, a chemical
known to the State of California to cause cancer and birth defects (or other reproductive harm).
WARNING:
This product contains chemicals, including lead, known to the State of California to cause cancer and
birth defects or other reproductive harm. Wash your hands after handling.