4-522.4
2
sPecial Precautions / taBle of contents
sPecial Precautions
THE INSTALLATION AND MAINTENANCE INSTRUCTIONS
IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE,
EFFICIENT AND TROUBLE-FREE OPERATION. IN ADDITION,
PARTICULAR CARE MUST BE EXERCISED REGARDING
THE SPECIAL PRECAUTIONS LISTED BELOW. FAILURE
TO PROPERLY ADDRESS THESE CRITICAL AREAS COULD
RESULT IN PROPERTY DAMAGE OR LOSS, PERSONAL
INJURY, OR DEATH. THESE INSTRUCTIONS ARE SUBJECT
TO ANY MORE RESTRICTIVE LOCAL OR NATIONAL CODES.
HaZard intensity levels
1. danger: Indicates an imminently hazardous situation
which, if not avoided, WILL result in death or serious injury.
2. Warning: Indicates a potentially hazardous situation which,
if not avoided, COULD result in death or serious injury.
3. caution: Indicates a potentially hazardous situation which,
if not avoided, MAY result in minor or moderate injury.
4. imPortant: Indicates a situation which, if not avoided,
MAY result in a potential safety concern.
dANGER
Appliances must not be installed where they may be exposed
to a potentially explosive or flammable atmosphere.
WARNING
1. Oil-fired heating equipment must be vented - do not
operate unvented.
2. Disconnect power supply before making wiring connections to
prevent electrical shock and equipment damage.
3. All appliances must be wired strictly in accordance with wiring
diagram furnished with the appliance. Any wiring different
from the wiring diagram could result in a hazard to persons
and property.
4. Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature
rating of at least 105°C.
5. When servicing or repairing this equipment, use only
factory-approved service replacement parts. A complete
replacement parts list may be obtained by contacting
Modine Manufacturing Company. Refer to the rating plate
on the appliance for complete appliance model number,
serial number, and company address. Any substitution of
parts or controls not approved by the factory will be at the
owner’s risk.
6. Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not more than 5% greater
than the rated voltage.
CAUTION
1. Do not locate units in tightly sealed rooms or small
compartments (commonly referred to as confined spaces)
without provisions for adequate combustion air and
venting. Combustion air must have access to the confined
space through a minimum of two permanent openings in
the enclosure, at least one near the bottom. They should
provide a free area of not less than one square inch per
1,000 BTU/Hr input rating of all units in the enclosure with
a minimum of 100 square inches for each opening,
whichever is greater.
IMPORTANT
1. To prevent premature heat exchanger failure, do not locate
ANY oil-fired appliances in areas where corrosive vapors
(i.e. chlorinated, halogenated or acid) are present in the
atmosphere.
2. To check most of the Possible Remedies in the troubleshooting
guide listed in Table 18.1, refer to the applicable sections of the
manual.
table of contents
Inspection on Arrival . . . . . . . . . . . . . . . . . . . . . . . . .
1
Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . .
2
SI (Metric) Conversion Factors . . . . . . . . . . . . . . . . .
3
Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11
Service Instructions . . . . . . . . . . . . . . . . . . . . . . . . .
14
Dimensional/Performance Data . . . . . . . . . . . . . . . .
17
Service & Troubleshooting . . . . . . . . . . . . . . . . . . . .
18
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Page
CAUTION
2. When oil-fired unit heaters are to be installed in areas
having negative pressure (for example - a space with
exhaust fans) a power venter is recommended.
3. Do not install units below 7 feet, measured from the
bottom of the unit to the floor, unless properly guarded to
provide protection from moving parts.
4. Do not install unit heater or vent pipe closer than 18
inches to combustible materials in any direction, except
the front of the unit heater, which must be unobstructed.
5. A barometric draft control must be installed on each unit
heater, in the same space as the unit heater and as close
to the unit as possible.
6. Remove bypass plug from fuel unit when unit is connected
to one pipe oil system. Failure to do so will permanently
damage fuel unit and void warranty.
7. Do not mount the oil safety valve more than three feet
above the burner inlet or above the lowest point in fuel line
pipings between burner and Oil safety valve. In-line mounting
is recommended.
8. Start-up and adjustment procedures should be performed
by a qualified oil serviceman.
9. Do not reset primary control if heat exchanger is hot. Wait
until cooled. If unit fails to operate properly after resetting
twice, consult the factory.
10. Never use a nozzle size or type other than specified in
Service Instructions.
11. Do not attempt to start the burner when excess oil or oil
vapor has accumulated in the combustion chamber or
when the heat exchanger is very hot.
12. Burner adjustments should only be performed by qualified
oil serviceman.
13. To prevent unusual thermal stress and eventual harm to
the heat exchanger, do not operate unit heater without fire pot
or with a damaged fire pot that does not enclose the flame.
14. Do not attempt to reuse any mechanical or electrical
controllers which have been wet. Replace defective controller.
15. Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not less than 5% below the rated voltage.
