Desa TC100VR, TC100VRNG User Manual

PROPANE AND

NATURAL GAS

CONSTRUCTION HEATERS

OWNER’S MANUAL

Models: TC100VR and TC100VRNG

IMPORTANT: Read and understand this manual before assembling, starting, or servicing heater.
Improper use of heater can cause serious injury. Keep this manual for future reference.

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.

TC100VR (Propane) and TC100VRNG (Natural Gas)
100,000 BTU CONSTRUCTION HEATERs

SAFETY
INFORMATION

WARNINGS

WARNING: 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 COMBUSTIBLES, OR
PRODUCTS SUCH AS GASO­LINE, SOLVENTS, PAINT THIN­NER, DUST PARTICLES OR UN­KNOWN CHEMICALS.

WARNING: NOT FOR HOME OR

RECREATIONAL VEHICLE USE.

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.

Other standards govern the use of fuel gases
and heat producing products for specific
uses. Your local authorities can advise you
about these.

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.

Natural Gas: Natural gas has a distinctive

odor. This odor helps you detect a natural
gas leak. However, the odor may fade. Natu­ral 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.

• 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 and the Natural Gas In­stallation Code, CAN/CGA B149.2. This

instructs on the safe storage and handling
of propane gases.

• For Model TC100VR, use only propane
gas set up for vapor withdrawal.

• For Model TC100VRNG, use only natu­ral gas. Do not attempt to use with LP
gas.

• Provide adequate ventilation. Before us­ing heater, provide at least a 3 square foot
opening of fresh, outside air.

• This heater produces carbon monoxide,
which is listed by the State of California
as a reproductive toxin under Proposi­tion 65.

• For indoor use only. Do not use heater
outdoors.

• Keep heater away from strong drafts, wind,
water spray , rain, or dripping water.

• Do not use heater in occupied dwellings
or in living or sleeping quarters.

• Do not use heater in a basement or be­low ground level. If a leak occurs, gas
may collect into hazardous amounts.

• 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.

• Minimum heater clearances from com­bustibles: Sides: 6 feet, Top: 5 feet.

• For Model TC100VR, keep heater at
least six feet from propane tank(s).

• For Model TC100VR, keep propane
tank(s) below 100° F.

• Use only the hose and factory preset
regulator provided with the heater (if
used).

• Check heater for damage before each use.
Do not use a damaged heater.

• Check hose (if used) before each use of
heater. If highly worn or cut, replace with
hose specified by manufacturer before
using heater.

• Do not alter heater. Keep heater in its
original state.

• Do not use heater if altered.

• Locate heater on stable and level surface
if heater is hot or operating.

• Not intended for use on finished floors.

• Never block air inlet (bottom of shell) or
air outlet (around top of shell) of heater.

• Do not leave heater unattended.

• Keep children and animals away from
heater.

• Never move, handle, or service a hot or
operating heater. Severe burns may re­sult. You must wait 20 minutes after turn­ing heater off.

• To prevent injury , wear gloves when han­dling heater.

• Never attach duct work to heater.

• Turn off gas supply to heater when not
in use.

• 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.

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.

For more information, visit www.desatech.com

2

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OWNER’S MANUAL

PRODUCT
IDENTIFICATION

Shell

Thermocouple

Ignitor
Electrode

Burner
Tube

Base

Piezo Ignitor
Button

Figure 1 - Product Identification

THEORY OF
OPERATION

The Fuel System for Propane: The hose/

regulator assembly attaches to the propane
gas supply. This provides fuel to the heater.

The Fuel System for Natural Gas: The gas

supply attaches to the heater by a minimum
3/4 inch i.d. hose or flexible connector. User
must supply hose or flexible connector. The
length should be no more than 10 feet long.
The natural gas moves through the regulator
and out the nozzle.

The Ignition System: The piezo ignitor

lights the pilot fuel supply.

The Automatic Control System: The auto-

matic control valve shuts off the heater if the
flame goes out.

Top

Emitter

Upper Shield

Lower Shield

Base
Shield

M
U
I

D
E
M

H
G
I
H

Control
Knob

Valve Inlet

Hose/Regulator
Assembly for Propane

Regulator for
Natural Gas

PROPANE SUPPLY

(FOR MODEL TC100VR)

You must provide propane gas and propane
tank(s).

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
and/or CAN/CGA B149.2.

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)

Your local library

The chart below shows the minimum num­ber of 100-pound tanks needed to run the
heater. Connect tanks together with a mani­fold. Do not operate this product with any
tank smaller than 100 pounds.

Average Temp. (ºF) Number
At Tank location of Tanks

60º 2
40º 2
32º 2
20º 2
10º 3

0º 3

Less gas is vaporized at lower temperatures.
Two or more 100-pound tanks or one larger
tank may be needed in colder weather. Your
local propane gas dealer will help you select
the proper supply system.

NATURAL GAS
SUPPLY

(FOR MODEL TC100VRNA)

You must provide the natural gas supply and
the connections to the heater.

The natural gas supply must have a capacity
of 100 scfh at 6 inches water column to 14
inches water column.

Consult your natural gas supplier for proper
sizing of the natural gas supply lines.

Follow all local ordinances and codes. In the
absence of local ordinances and codes, refer
to the National Fuel Gas Code Handbook,

NFPA54/ANS Z223.1 and the Natural Gas
Installation Code, CAN/CGA B149.2.

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For more information, visit www.desatech.com