Desa Tech 45-FAC, SPC-45 Owner's Manual

OPERATING INSTRUCTIONS

FORCED AIR PROPANE CONSTRUCTION HEATERS

Models

25,000 - 45,000 BTU/hr 30,000 BTU/hr 40,000 BTU/hr

50,000 - 85,000 BTU/hr 75,000 - 125,000 BTU/hr

HEATER SPECIFICATION

Type of Gas For Use with Propane Only
Gas Supply Pressure
to Regulator Max: Bottle Pressure

Regulator out 28" W.C. (11" W.C. for 30,000 BTU/hr and 40,000 BTU/hr)
Electrical Input 115V, 60 Hz 10, 3a
Minimum Operating Voltage 100V
Ignition Direct Spark (Manually operated for 30,000 BTU/hr heaters)
Primary Flame Control Thermocouple Operated Gas Valve
High Temperature Control 240oF
Min. Ambient Temp. Rating 0oF

Min: 5 psig

Rating: Adjustable Adjustable Adjustable
Fuel Consumption: 1.2 - 2.1 #/hr 1.4 #/hr 1.8 #/hr 2.3 - 3.9 #/hr 3.5 - 5.8 #/hr

Fuel Orifice: 0.0180" x 18 holes .073" dia. .55mm x 18 holes 0.024" x 18 holes .75mm x 18 holes
Heated Air Output:
CFM: 250 140 250 350 350
Average Air Temp Rise: 170oF 250oF 160oF 200oF 400oF

!

25,000-45,000 BTU/hr 30,000 BTU/hr 40,000 BTU/hr 50,000-85,000BTU/hr 75,000-125,000 BTU/hr

YOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS,
SO PLEASE READ THESE INSTRUCTIONS BEFORE YOU
OPERATE THIS HEATER.

! 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.

!

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.

SCHEU PRODUCTS COMPANY, INCORPORATED

MAIL: P.O. BOX 250, UPLAND, CA 91785

PLANT: 8855 BAKER AVE., RANCHO CUCAMONGA, CA 91730

TELEPHONE: [phone]

ANSI Z83.7b-1993/CGA 2.14-1972

P/N 7385J

September 2000

25-45, 30, 40, 50-85, 75-125,000 BTU/HR

OPERATING PRECAUTIONS

This is a propane, direct-fired, forced air heater. It's intended
use is primarily temporary heating of buildings under con­struction, alteration or repair.

WARNING

NOT FOR HOME OR RECREATIONAL VEHICLE USE

Propane is heavier than air. If propane leaks from a connection
or fitting, it sinks to the floor, collecting there with the surround­ing air, forming a potentially explosive mixture. Obviously,
propane leaks should be avoided, so set up the propane
supply with utmost care. Leak check new connections or
reconnections with a soap and water solution and follow all
connection instructions herein. Also, ask your propane dealer
for advice on the propane application and supply installation
and ask him to check it if there are any questions.

Direct-Fired means that all of the combustion products enter
the heated space. Even though this heater operates very close
to 100 percent combustion efficiency, it still produces small
amounts of carbon monoxide. Carbon monoxide (called CO)
is toxic. We can tolerate small amounts but not a lot. CO can
build up in a heated space and failure to provide adequate
ventilation could result in death. The symptoms of inadequate
ventilation are:

headache
dizziness
burning eyes and nose
nausea

dry mouth or sore throat
So, be sure to follow advice about ventilation in these operating
instructions.

Forced Air means that a blower or fan pushes the air through
the heater. Proper combustion depends upon this air flow;
therefore, the heater must not be revised, modified or operated
with parts removed or missing. Likewise, safety systems
must not be circumvented or modified in order to operate the
heater.

When the heater is to be operated in the presence of other
people the user is responsible for properly acquainting
those present with the safety precautions and instructions,
and of the hazards involved.

SAFETY PRECAUTIONS

1. Check the heater thoroughly for damage. DO NOT
operate a damaged heater.

2. DO NOT modify the heater or operate a heater which
has been modified from its original condition.

3. Use only propane gas.

4. Use only VAPOR WITHDRAWAL propane supply. If
there is any question about vapor withdrawal, ask
your propane dealer.

5. Mount the propane cylinders vertically (shutoff valve
up). Secure them from falling or being knocked over
and protect them from damage.

6. Locate propane containers at least 7 ft. from the
heater and do not direct exhaust toward containers.

7. Use only the hose and regulator assembly provided
with the heater. Inspect hose assembly before each
use of the heater. If there is excessive abrasion or
wear, or hose is cut, replace with hose assembly
listed on parts list before using heater.

8. For indoor use only. Area must be well ventilated.
Provide minimum openings of 1 sq. ft. near the floor
and 1 sq. ft. near the ceiling (also see "Operating
Precautions").

9. If at any time gas odor is detected, IMMEDIATELY
DISCONTINUE operation until the source of gas has
been located and corrected.

10. Install the heater such that is is not directly exposed
to water spray, rain and/or dripping water.

11. Maintain minimum clearance from normal combust­ible material (like paper) as follows:
floor-0 ft.;outlet-6 ft.; sides-2 ft.; top-3 ft. Locate 10 ft.
from canvas or plastic tarpaulins or similar coverings
and secure them to prevent flapping or movement
due to wind action.

12. Operate only on a stable, level surface.

13. Do not use with ductwork. Do not restrict inlet or exit.

14. Use only the electrical power specified. The electrical
connection and grounding must comply with National
Electrical Code - ANSI/NFPA 70.

15. Use only a properly grounded 3-prong receptacle or
extension cord.

16. Do not move, handle or service while hot or burning.

17. Use only in accordance with local codes or, in the
absence of local codes, with the Standard for the
Storage and Handling of Liquefied Petroleum Gases
ANSI/NFPA 58-1998.

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RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE.