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Owner’s Manual for Flameless Air Heater
1
Section 1: Introduction and Safety
Introduction
Thank you for purchasing a Generac Mobile product.
This unit has been designed to provide high-perfor-
mance, efficient operation, and years of quality use when
maintained properly.
The MFH900 flameless air heater is designed and built
for sustained, reliable heat production in industrial oper-
ating conditions and environments. The MFH900 is built
to withstand frequent handling under these conditions.
The unit is mounted on a trailer that has forklift pockets,
tie-down points, and a central lifting point. The fully
enclosed design protects the operating components,
allowing all-weather storage and operations.
The information in this manual is accurate based on
products produced at the time of publication. The manu-
facturer reserves the right to make technical updates,
corrections, and product revisions at any time without
notice.
Read This Manual Thoroughly
If any section of the manual is not understood, contact
your nearest Generac Mobile Authorized Service Dealer
(GMP ASD), or contact Generac Mobile customer service
at 800-926-9768, or visit
www.generacmobileprod-
ucts.com
with any questions or concerns.
The owner is responsible for proper maintenance and
safe use of the equipment. The manufacturer strongly
recommends that if the operator is also the owner, to
read the owner’s manual and thoroughly understand all
instructions before using this equipment. The manufac-
turer also strongly recommends instructing other users to
properly start and operate the unit. This prepares them if
they need to operate the equipment in an emergency.
SAVE THESE INSTRUCTIONS for future reference. This
manual contains important instructions for the machine
that should be followed during installation, operation, and
maintenance of the heater and batteries. Always supply
this manual to any individual that will use this machine.
Safety Rules
The manufacturer cannot anticipate every possible cir-
cumstance that might involve a hazard. The alerts in this
manual, and on tags and decals affixed to the unit, are
not all inclusive. If using a procedure, work method, or
operating technique that the manufacturer does not spe-
cifically recommend, verify that it is safe for others and
does not render the equipment unsafe.
Throughout this publication, and on tags and decals
affixed to the unit, DANGER, WARNING, CAUTION, and
NOTE blocks are used to alert personnel to special
instructions about a particular operation that may be haz-
ardous if performed incorrectly or carelessly. Observe
them carefully. Alert definitions are as follows:
NOTE:
Notes contain additional information important to
a procedure and will be found within the regular text of
this manual.
These safety alerts cannot eliminate the hazards that
they indicate. Common sense and strict compliance with
the special instructions while performing the action or
service are essential to preventing accidents.
How to Obtain Service
When the unit requires servicing or repairs, contact a
GMP ASD for assistance. Service technicians are fac-
tory-trained and are capable of handling all service
needs. For assistance locating a dealer, go to
www.generacmobileproducts.com/parts-service/find-
When contacting a GMP ASD about parts and service,
always supply the complete model and serial number of
the unit as given on the data decal located on the unit.
Record the model and serial numbers in the spaces pro-
vided on the front cover of this manual.
(000100a)
WARNING
Consult Manual. Read and understand manual
completely before using product. Failure to
completely understand manual and product
could result in death or serious injury.
(000001)
DANGER
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
(000002)
WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
(000003)
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Summary of Contents for MFH900
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