HER Installation and Service Manual
2-525.6
IMPORTANT
To check most of the Possible Remedies in the trouble-
shooting guide listed in Table 7.1, refer to the applicable
sections of the manual.
2
SPECIAL PRECAUTIONS / IMPORTANT
INSTRUCTIONS
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.
SPECIAL PRECAUTIONS / IMPORTANT INSTRUCTIONS
DANGER
Appliances must not be installed where they may be exposed
to a potentially explosive or flammable atmosphere.
WARNING
CAUTION
1. All literature shipped with this unit should be kept for
future use for servicing or service diagnostics. Do not
discard any literature shipped with this unit.
2. Be sure no obstructions block air intake or discharge of
the appliance.
3. Do not install appliance outdoors.
4. Do not install appliance closer than 12 inches to
combustible materials in any direction.
5. The bottom of the appliance for HER 30-50: must be at
least - 6ft USA & 8ft Canada, HER 75-250: - 8ft.
6. Do not attach duct work, air filters, or polytubes to any
appliance.
7. Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% less than the rated voltage.
8. Do not reuse any electrical component which has been
wet. Such component must be replaced.
9.
SAVE THESE INSTRUCTIONS
SI (METRIC) CONVERSION FACTORS
Table 2.1
To Convert Multiply By To Obtain
"W.C. 0.24 kPa
psig 6.893 kPa
°F (°F-32) x 0.555 °C
inches 25.4 mm
feet 0.305 meters
CFM 0.028 m
3
/min
To Convert Multiply By To Obtain
CFH 1.699 m
3
/min
Btu/ft
3
0.0374 mJ/m
3
pound 0.453 kg
Btu/hr 0.000293 kW/hr
gallons 3.785 liters
psig 27.7 "W.C.
1. Disconnect power supply before making wiring connections
to prevent electrical shock and equipment damage.
2. 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.
3. Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% greater than rated voltage.
4. 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.
5. Do not operate any heater if it malfunctions. Disconnect
power at service panel and have heater inspected by a
qualified installation and service agency.
6. Do not insert or allow foreign objects to enter any
ventilation or exhaust opening.
7. Use this heater only as described in this manual.
8. The heater is hot when in use. To avoid burns, do not let
bare skin toiuch hot surfaces.








