Desa Tech 6BY75 Owner's Manual
Operating Instructions and Parts Manual
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or
maintain the product described. Protect yourself and others by observing all safety information. Failure to
comply with instructions could result in personal injury and/or property damage! Retain instructions for
future reference.
6BY75
Dayton® Propane Gas-Fired Radiant
Construction Heater
Description
Dayton Model 6BY75 is a 125,000 Btu/Hr construction heater. This
heater uses propane gas for combustion. It is primarily intended for
outdoor use and the temporary heating of well-ventilated buildings
under construction, alteration, or repair. This heater should never be
used in occupied dwellings. Products of combustion are vented
into the area being heated.
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 combus-
Figure 1 - Model 6BY75
Unpacking
1. Remove all packing items
applied to heater for shipment. Keep plastic cover
caps (attached to valve inlet
and hose/regulator assembly) for storage.
2.
Remove all items from carton.
3. Check all items for shipping damage. If heater is
damaged, promptly inform
dealer where you bought
heater.
Form 5S5381
tibles or products
such as gasoline,
solvents, paint thinner, dust particles or
unknown chemicals.
Printed in China
09663
1105/381/VCPVP
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.
Only persons who
can understand and
follow the instructions should use or
service this heater.
If you need assistance or heater information such as an
instructions manual,
labels, etc. contact
the manufacturer.
DES004
117164-01
05/05
Rev. B
11/05
Dayton Operating Instructions and Parts Manual
Dayton
®
Propane Gas-Fired Radiant
Construction Heater
6BY75
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,
operating 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,
operating, 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,
operating, 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
circumstance 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 procedure, work method, or
operating technique 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.
Not for home or recreational vehicle use.
This product contains
and/or generates chemicals known to the State
of California to cause
cancer or birth defects, or
other reproductive harm.
Do not exceed 1/2 psi
(14" w.c.) gas pressure
to the gas control valve.
The heater is designed for use as
a construction heater in accordance with ANSI Z83.7/CGA
2.14. Other standards govern
the use of fuel gases and heating products for specific uses.
Your local authority can advise
you about these. The primary
purpose of construction heaters
is to provide temporary heating
of buildings under construction,
alteration or repair. Properly
used, the heater provides safe
economical heating. Products of
combustion are vented into the
area being heated.
We cannot foresee every use
which may be made of our heaters. Check with your local fire
safety authority if you have
questions about heater use.
2
Carbon Monoxide Poisoning:
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 working properly. Get fresh
air at once! Check for proper
ventilation and 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 may fade.
Propane gas may be present
even though no odor exists.
Make certain you read and
understand all warnings. Keep
this manual for reference. It is
your guide to safe and proper
operation of this heater.
1. 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 Storage and
Handling of Liquefied
Petroleum Gas, ANSI/
NFPA 58. This instructs on
the safe storage and handling of propane gases.
2. Use only the hose and factory preset regulator provided with the heater.
3. Use only propane gas set
up for vapor withdrawal.
4. Provide adequate ventilation. Before using heater,
provide at least a 0.35 m2
(3.75 ft2) opening of fresh,
outside air.
5. Do not use heater in occupied dwellings or in living
or sleeping quarters.
117164-01A
Dayton Operating Instructions and Parts Manual
Model 6BY75
General Safety
Information (Continued)
6.
Do not use heater in basement or below ground level.
7. Keep appliance area clear
and free from combustible
materials, gasoline, paint
thinner and other flammable vapors and liquids. Dust
is combustible. Do not use
heater in areas with high
dust content.
8. Minimum heater clearances
from combustibles: Sides
1.54 m (5 ft), Top 1.22 m
(4 ft).
9.
Keep heater at least 6.0 m
(20 ft) from propane tank(s).
10. Keep propane tank(s)
below 38° C (100° F).
11. Check heater for damage
before each use. Do not
use a damaged heater.
12. Check hose before each
use of heater. If highly
worn or cut, replace with
hose specified by the
manufacturer before using
heater.
13. Locate heater on stable
and level surface if heater
is hot or operating.
14. Not intended for use on
finished floors.
15. Never block any air inlet
or air outlet openings of
heater.
16. Keep heater away from
strong drafts, wind, water
spray, rain or dripping
water.
17. Do not leave heater unattended.
18. Keep children and animals
away from heater.
19. To prevent burns, remove
handle before operating
heater.
20. Never move, handle or
service a hot or operating
heater. Severe burns may
result. Wait 15 minutes
after turning heater off.
21. To prevent injury, wear
gloves when handling
heater.
22. Never attach duct work to
heater.
23. Do not alter heater. Keep
heater in its original state.
24. Do not use heater if
altered.
Product Identification
Figure 2 - Product Identification
25. Turn off gas supply to
heater when not in use.
26. Use only original replacement parts. This heater must
use design-specific parts. Do
not substitute or use generic
parts. Improper replacement
parts could cause serious or
fatal injuries.
Top
Protective
Screen
Combustion
Chamber
Cover
Lighting
Port
Control Knob
117164-01A
3
Dayton Operating Instructions and Parts Manual
Dayton
®
Propane Gas-Fired Radiant
Construction Heater
6BY75
Specifications
• Rating: 125,000 Btu/Hr (131,882 kj)
• Fuel: Propane Vapor Only
• Fuel Consumption: 5.17 ltr/hr (1.3 gal/hr), 2.6 kg/hr (5.8 lb/hr)
• Supply Pressure To Regulator (for input adjustment):
Maximum 1380 kPa (200 psi), Minimum 138 kPa (20 psi)
• Manifold Pressure: 2.3 kPa (9.5" W.C.)
• Heater Weight: 17.69 kg (39 lbs)
• Shipping Weight: 20.86 kg (46 lbs)
•
Heater Size (L x W x H): 40.6 x 45.7 x 109.2 cm (16" x 18" x 43")
• Min Temperature: -29 °C (-20° F) Surrounding Air Temperature
Theory of Operation
The Fuel System: The hose/regu-
lator assembly attaches to the
propane gas supply. This provides fuel to the heater.
The Ignition System: The piezo
ignitor lights the burner fuel
supply.
The Automatic Control System:
This system causes the heater to
shut down if the flame goes out.
Propane Gas Supply
Propane gas and propane tank(s)
are to be furnished by the user.
Use this heater only with a
propane vapor withdrawal supply system. See Chapter 5 of
the Standard for Storage and
Handling of Liquefied Petroleum
Gas, ANSI/NFPA 58. Your local
library or fire department will
have this booklet.
The amount of propane gas
ready for use from propane
tanks varies. Two factors decide
this amount.
1. The amount of liquid propane gas in tank(s)
2. The temperature of tank(s)
The following chart shows the
minimum number of 45 kg (100
lb) tanks needed to run the
heater. Connect tanks together
with a manifold.
Average
Temperature Number Of Tanks
At Tank Location 45 kg (100 lb)
above 0° C (32° F) 2
Below 0° C (32° F) 3
Less gas is vaporized at lower
temperatures. Your local propane gas dealer will help you
select the proper supply system.
Ventilation
Provide at least a 0.35 m2
(3.75 ft2) opening of fresh,
outside air while running
heater. If proper fresh,
outside air ventilation
is not provided, carbon
monoxide poisoning can
occur. Provide proper
fresh, outside air ventilation before running
heater.
Installation
Test all gas piping and
connections for leaks
after installation or
servicing. Never use an
open flame to check
for a leak. Apply a
mixture of liquid soap
and water to all joints.
Bubbles forming show
4
a leak. Correct all leaks
at once.
Read these instructions
carefully. Read and
adhere to these instructions. Do not allow anyone who has not read
these instructions to
assemble, light, adjust
or operate this heater.
Do not attempt to
operate the heater
with any gas other
than that indicated on
the heater nameplate.
The installation of this appliance must comply with local
and/or Provincial codes or, in the
absence of these codes, with the
National Fuel Gas Code, ANSI
Z223.1 – Latest Edition and with
the Standard for the Storage
and Handling of Liquefied
Petroleum Gases, ANSI/NFPA 58
installation codes.
This heater (including hose and
regulator assembly) must be
inspected before each use and
at least annually by a qualified service person. If the hose
shows evidence of excessive
abrasion or wear or if the hose
is cut, it must be replaced prior
to the heater being put into
operation. The replacement
hose assembly shall be that
specified by the manufacturer.
LOCATING HEATER
The heater (and propane/LP gas
supply cylinder) must be located
on a hard, flat, level surface to
minimize the risk of accidental
tipping. If a propane/LP gas
supply cylinder is used, the
cylinder should be adequately
restrained to prevent accidental
117164-01A
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