OPERATING INSTRUCTIONS
National-Riverside
Universal
HEA TERMODEL 80-F AP
MODELS 150-FAST
PROPANE
CONSTRUCTION
HEATER
FORCED AIR
150,000 BTU/HR
Type of Gas For Use with Propane Gas Only
Input Rating 150,000 BTU/hr
Fuel Consumption 7 Lbs/hr
Gas Supply Pressure
to Regulator Max: Bottle Pressure
Regulator Out 11" W.C.
Fuel Orifice Size 1.00 mm Drill - 18 Holes
Electrical Input 115V, 60Hz 10, 4a
Minimum Operating Voltage 100V
Fan 3000 rpm, 450 cfm
Average Air Temp Rise Approx. 300oF
Ignition Direct Spark, Interrupted Type
Primary Flame Control Solid State, 10-15 second Timing
High Temperature Limit Control 240oF
Minimum Ambient Temp. Rating 0oF
Size (Length x Width x Height) 26" x 9" x 16"
New Weight 32 lbs.
Shipping Weight 34 lbs.
SPC
ALL-PRO
MODEL SPC-150T
HEATER SPECIFICATIONS - 150
Min: 5 psig
!
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.
RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE.
OPERATING PRECAUTIONS
SAFETY 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 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 efficiecy, 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.
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 2 sq. ft. near the floor
and 2 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 it 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-1 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.
Page 2
WARNING: FIRE, BURN, INHALATION, AND EX-
PLOSION HAZARD. KEEP SOLID COMBUSTIBLES, SUCH
AS BUILDING MATERIALS, PAPER OR CARDBOARD, A
SAFE DISTANCE AWAY FROM THE HEATER AS RECOMMENDED BY THE INSTUCTIONS 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.
PROPANE FUEL PRECAUTIONS
OPERATING INSTRUCTIONS
WARNING:
Local codes for installation of propane systems may vary
considerably. Therefore, ask your local propane supplier for
advice on propane system installation in your particular area.
In the absence of local codes, install in accordance with
American National Standards Institute (ANSI)/National Fire
Protection Association (NFPA) publication Standard for the
Storage and Handling of Liquefied Petroleum Gases ANSI/
NFPA 58-1998. Your supplier, fire marshal or library should
have a copy.
The propane supply system must be arranged for vapor
withdrawal. Propane cylinders must be secured in the upright
position to keep them from falling or being knocked over.
During use, liquid propane in a container vaporizes. As it
vaporizes, the propane cools itself. If this cooling process
continues long enough and proceeds fast enough, the propane temperature and pressure will fall so low that heater
operation may be improper or even impossible even though
plenty of propane remains in the container. Often frost forms
on the outside of the propane container as a warning of
excessive refrigeration.
Recommendations to reduce the ill effects of refrigeration are:
* Provide considerably more propane than you plan to
consume. As a rule of thumb, provide twice as much.
* Fill containers frequently, especially in cold weather.
Never allow propane to fall below one-third of con tainer capacity.
* If possible, keep containers in a warm area. Under
no circumstances should the heater exhaust be
directed toward the propane container.
* Watch for frost formation on the container. If it
occurs, discontinue use of the heater and refill the
container.
SIZE AND CAPACITY OF PROPANE CYLINDERS
The chart below shows the approximate size of the cylinder
required for this heater. To use the chart:
1. Select the lowest air temperature expected (at the
bottom of the chart).
2. Move straight up to time of operation desired (left
side of chart).
3. Read the cylinder size required.
PREPARING FOR OPERATION
1. Check the heater for possible shipping damage. If
any is found, immediately notify your dealer.
2. Follow all of the "Precautions" on pages 2 & 3.
3. Connect the POL fitting of hose and regulator assembly to the propane cylinder by rotating the POL nut
counterclockwise into the propane cylinder's valve
outlet and securely tighten with a wrench.
4. Connect the hose to the heater by rotating the hose
fitting clockwise.
5. Securely tighten all gas connections.
6. Open the cylinder's gas valve and check all gas
connections with a soap and water solution. DO NOT
USE A FLAME.
7. Connect power cord to well-grounded 115V, 60 Hz, 10
source of power.
8. When using an extension cord, make certain that it is
a 3-wire (grounded) cord of proper wire size. See
chart on page 4.
START
1. Slowly open the main valve at propane cylinder.
2. Set the thermostat to the desired temperature.
Heater will turn on and off automatically as the
temperature varies in the heated areas.
STOP
1. Securely close valve on the propane cylinder.
2. Continue to operate heater until all fuel in the hose
has burned.
3. Turn the heater thermostat to off.
RESTART AFTER SAFETY SHUTDOWN
1. Securely close valve at propane cylinder. Unplug
heater.
2. Wait 5 minutes.
3. Restart following "Start" procedure.
MAINTENANCE AND STORAGE
1. The heater should be inspected before each use, and
at least annually by a qualified person.
2. Before each use, check the soft "O" ring seat at the
bullnose of the POL fitting. If the "O" ring is cut,
scuffed, or otherwise damaged, replace it with part
number 6681.
3. Turn off the gas at the LP-gas supply cylinder(s) when
the heater is not in use.
4. When the heater is to be stored indoors, the connection between the LP-gas supply cylinder(s) and the
heater must be disconnected and the cylinder(s)
removed from the heater and stored out of doors and
in accordance with Chapter 5 of the standard for
Storage and Handling of Liquefied Petroleum Gases
ANSI/NFPA 58-1998.
Recommended Minimum Gauge for Cord Extensions
Wire Gauge Chart A.W.G.
Name
Plate 120V Cord Length in Feet
Amps. 25 50 100 150
5-6 18 16 14 12
6-8 18 16 12 10
8-12 18 14 12 10
10-12 16 14 10 8
12-14 16 12 10 8
150-FAST/SPC-150FAST
Item Part No. Description Qty Item Part No. Description Qty.
150-FAST SPC-150FAST 150-FAST SPC-150FAST
1 1700 1712 Burner Shell Assembly 1 28 3441 3441 Thermostat Mounting Bracket 1
2 1672 1672 Middle Cylinder Assembly 1 29 6070 6070 Clamp Loop, 5/16 1
3 1168 1168 Orifice Assembly 1 30 1734 1734 Thermostat Assembly 1
4 1146 1146 Flame Holder Assembly 1 31 10739 10739 Flame Control 1
5 1550 1550 High Limit Control Assembly 1 32 3333 3333 Flame Control Bracket (7499) 1
6 3038 3038 Nut, Orifice 1 33 6223 6223 Bushing, Strain Relief, 1/4 1
7 7095 7095 Handle 1 34 1036 1036 Power Cord Assembly 1
8 7094 7094 Handle Mounting Clip 2 35 1942 1942 Thermostat Knob Assembly 1
9 1939 1940 Motor Shell Assembly 1 36 1937 1937 Control Box Assembly 1
10 6010 6010 Set Screw, Nyloc 1 * 6189 6189 Terminal, "Y" Adaptor 2
11 6074 6074 Fan 1 * * 7219 7219 Control (Mark 10N) 1
12 6041 6041 Nut, Lock 1 ** 3210 3210 Bracket (7219) 1
13 6030 6030 Screw, Machine 1 * 6712 6712 Label, Hangtag 1
14 3133 3133 Support, Motor Strap 2 * 7744 7744 Label, Model/Operating Instructions 1
15 1561 1561 Motor Assembly 1 * 6374 6374 Label, Electrical Ground 1
16 3087 3087 Grille, Inlet 1 * 7789 7789 Label, Wiring Diagram 1
17 6225 6225 Snap Bushing, 5/8 1 * 7067 7067 Label, BTU Rating 2
18 3132 3132 Saddle, Motor Support 1 * 6383 6752 Label, Logo 2
19 6152 6152 Hose Assembly 1 * 7743 7743 Manual, Operating Instr. 1
20 6255 6255 Regulator, 11" WC 1 * 6410 6410 Label, Thermostat 1
21 6433 6433 POL Excess Flow 1 * 7745 7745 Parts List/Wiring Diagram 1
22 6122 6122 Fitting, Male Connector 1 ** 7499 7499 Flame Control 1
23 6100 6100 Solenoid Valve 1 ** 10739 10739 Flame Control Mini Potted 1
24 6123 6123 Fitting, Male Connector 1 ** 6641 6641 Terminal Board (7801 & 7808) 1
25 1171 1171 Fuel Tube Assembly 1 ** 3983 3983 Bracket (7801 & 7808) 1
26 1083 1083 Spark Plug 1 * 1959 1959 Harness 1
27 3037 3037 Nut, Spark Plug 14 mm 3
** Alternate Control
*Not shown on exploded view
7745B
SEPTEMBER 2001
WIRING DIAGRAM
WIRING CHART
PART NO. COLOR LENGTH FROM TO
1041 White 4 1/2" Terminal Block Va l v e
1041 White 4 1/2" Flame Control Valve Valve
1226 Red (Hi-Temp) 16 1/2" High Limit Switch Valve
1226 Red (Hi-Temp) 16 1/2" Terminal Block High Limit Switch
1226 Red (Hi-Temp) 16 1/2" Flame Control Valve High Limit Switch
1188 Green 6" Flame Control (Ground) Ground
1111 Orange 8" Flame Control (Ignition) Spark Plug
1959 Green 7" Flame Control (Harness) Ground
1959 Red 7" Flame Control (Harness) Terminal Block
1959 White 6" Flame Control (Harness) Terminal Block
1959 Black 6" Flame Control (Harness) Terminal Block
INSTRUCTIONS FOR ORDERING PARTS
All parts orders must show heater Model No., Item No., Part
No., and Description. We recommend that only parts
supplied by the manufacturer be used on this unit. A locally
purchased part may appear to be identical, although in
reality it might endanger the heater or the persons operating
the heater.
The heater should be serviced only by a trained, experienced service person.
Read the section on "Servicing" before ordering parts.
For parts order, call (909) 981-5343.
150-FAST/SPC-150T
SERVICING
A hazardous condition may result if a heater is used that
has been modified or is not functioning properly. When the
heater is working properly:
* The flame is contained within the heater.
* The flame is essentially blue with perhaps
some yellow tipping.
* There is no strong disagreeable odor, eye
burning or other physical discomfort.
* There is no smoke or soot internal or external to
the heater.
* There are no unplanned or unexplained shut
downs of the heater.
The parts lists and wiring diagram show the heater as it was
constructed. Do not use a heater which is different from
that shown. In this regard, use only the hose, regulator and
cylinder connection fitting (called a POL fitting) supplied
with the heater. Do not use alternates. For this heater, the
regulator must be set to supply 11" water column (W.C.)
outlet pressure (.40 psig). If there is any uncertainty about
the regulator setting, have it checked.
A heater which is not working right must be repaired, but
only by a trained, experienced service person. Contact the
factory for the service center closest to you, phone number
(909) 981-5343.
TECHNICAL INFORMA TION
HOW MUCH HEAT DO I REQUIRE?
For economy, it is important to match input to that
required. But heat requirements often vary. For example, it usually takes a lot more heat to get things warm
than it does to keep them that way. Likewise, outside air
temperature usually changes during the day so you may
need more heat at night than you do in the daytime. An
approximation of the heat required can be found by using
the chart below.
BTU'S PER HOUR REQUIRED
Cubic feet Temperature Rise Required (oF)*
of space to
be heated 20
5,000 14,000 20,000 27,999 34,000
7,000 19,000 28,000 38,000 47,000
10,000 27,000 40,000 54,000 67,000
15,000 40,000 60,000 80,000 100,000
20,000 54,000 80,000 107,000 133,000
30.000 80,000 120,000 160,000 200,000
o
30
o
40
o
50
o
You may also obtain in-warranty or out-of-warranty service
by returning the product freight prepaid to:
Scheu Products Company
8855 Baker Avenue
Rancho Cucamonga, CA 91730
In-warranty products returned to the Service Department
will be repaired with no charge for either parts or labor and
will be returned to you freight prepaid. Please include a
brief statement indicating date, place of purchase, the
nature of the problem and proof of purchase.
Out-of-warrranty products returned to the Service Department will be repaired with a charge for parts and labor and
will be returned to you freight collect.
50,000 133,000 200,000 266,000 333,000
WARNING: When using a thermostat the heater exit
area should be protected from personnel and warnings
posted of sudden startup.
ANSI Z83.7b-1993/CGA 2.14-1972
Construction Heater
Page 4
SCHEU PRODUCTS COMPANY, INCORPORATED
MAIL: P.O. BOX 250, UPLAND, CA 91785
PLANT: 8855 BAKER AVE., RANCHO CUCAMONGA, CA 91730
TELEPHONE: 909-981-5343
P/N 7743D
September 2000
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