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Dayton Operating Instructions and Parts Manual
2
Dayton Propane
Construction Heater
®
3VH20
General Safety Information
Make certain you read and understand all
warnings. Keep these instructions for
reference. They are your guide to safe and
proper operation of this heater.
Safety information appears throughout
these instructions. Pay close attention to
them. Below are definitions for the safety
information listed throughout this manual.
Under this heading,
installation, operat-
ing and maintenance procedures or
practices will be found that, if not carefully
followed, WILL result in IMMEDIATE
serious personal injury or death.
Under this heading,
installation, operat-
ing, and maintenance procedures or
practices will be found that, if not
carefully followed, COULD result in severe
personal injury or death.
Under this heading,
installation, oper-
ating, and maintenance procedures or
practices will be found that, if not carefully
followed, MAY result in minor personal
injury, product or property damage.
IMPORTANT: Not every possible circum-
stance that might involve a hazard can be
anticipated. The warnings in this manual
and on tags or decals affixed to the unit
are therefore not all-inclusive. If a proce-
dure, work method, or operating tech-
nique not specifically recommended by
Dayton is used, you must make sure it is
safe for you and others. You should also
ensure that equipment will not be
damaged or made unsafe by the operating
or maintenance method you choose.
Carbon monoxide
poisoning may lead
to death! Some people are more
affected by carbon monoxide than
others. Early signs of carbon monoxide
poisoning resemble the flu, with
headaches, dizziness, and/or nausea. If
you have these signs, the heater may
not be operating properly, or the areas
may not be sufficiently ventilated. Get
fresh air at once! Have heater serviced.
Propane Gas: Propane gas is odorless.
An odor-making agent is added to
propane gas. The odor helps you detect
a propane gas leak. However, the odor
added to propane gas can fade.
Propane gas may be present even
though no odor exists.
• Install and use
heater with care.
Follow all local ordinances and codes.
In the absence of local ordinances and
codes, refer to the Standard for Stor-
age and Handling Liquefied Petroleum
Gas, ANSI/NFPA 58 and the Natural Gas
Installation Code, CAN/CGA B149.2.
This instructs on the safe storage and
handling of propane gases.
• Use only the hose and factory preset
regulator provided with the heater.
• Use only propane gas set up for
vapor withdrawal. Before connecting
heater to propane tank, make sure
the heater regulator knob is in the
OFF position. Always connect and
operate heater in areas free of open
flames.
• For indoor and outdoor use. When
used indoors, use only in well-vented
areas. Provide at least 120-square-
inches of fresh, outside air before
using heater. This heater produces
carbon monoxide, which is listed by
the State of California as a reproduc-
tive toxin under Proposition 65.
• Do not use heater in occupied dwell-
ings, sleeping quarters, campers, tents,
or any type of unvented or enclosed
area.
• Do not use heater as a cooking device.
Do not place objects on top of heater.
• Do not use heater in basement or
below ground level. Propane gas is
heavier than air. If a leak occurs,
propane gas will sink to the lowest
possible level and may accumulate to
explosive concentrations.
• Keep appliance area clear and free
from combustible materials, gaso-
line, paint thinner, and other flam-
mable vapors and liquids. Dust is
combustible. Do not use heater in
areas with high dust content.
• Minimum heater clearances from com-
bustibles: Sides: 3 feet; Top: 6 feet.
• Keep heater at least six feet from
propane tank(s).
• Keep propane tank(s) below 100
°
F.
• Check heater for damage before each
use. Do not use a damaged heater.
• Check hose before each use of
heater. If highly worn or cut, replace
with hose specified by manufacturer.
• Operate heater on stable and level
surfaces only.
• Never block air inlet (top of base) or air
outlet (around top of shell) of heater.
• Keep heater away from strong drafts,
wind, water spray, rain, or dripping
water.
• Never operate heater while unat-
tended. Never run heater while asleep.
• Keep children and animals away
from heater.
• Never move, handle, or service a hot
or operating heater. Severe burns
may result. You must wait 15
minutes after turning heater off.
• To prevent injury, wear gloves when
handling heater.
• Never attach duct work to heater.
• Do not alter heater. Keep heater in
its original state.
• Do not use heater if altered.
• Turn off propane supply to heater
when not in use.