SCHEU ALL PRO SPC-12 (01) PDF Document

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 cylinders. If there is any question about vapor withdrawal, ask your propane dealer.

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

6. Do not direct heat toward propane cylinders.

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. The hose and fittings shall be protected from damage and deterioration.

8. For indoor or outdoor use. AREA MUST BE WELL VENTILATED. Provide minimum openings of 1 sq. ft. near the floor and 1 sq. ft. near the ceiling.

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, dripping water and/or wind.

11. Maintain minimum clearance from normal combustible materials (like paper) as follows: rear-2 ft.; sides-3 ft.; front-6 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. Since permanent skin tissue damage can occur, avoid contact with the unit while it is operating or shortly after it has been shut off.

14. Operate the unit in a draft-free area or protect the heater from drafts.

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

16. 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, and National Fuel Gas Code ANSI Z223.1/NFPA.

This is a propane, direct-fired, heater. It’s intended use is primarily temporary heating of buildings under construction, alteration or repair. It is not for home or recreational vehicle use. Propane is heavier than air and can form an explosive mixture if it leaks and collects on the floor. Always set up the propane supply with utmost care and leak check new connections. Direct-fired means all combustion products enter the heated space. While the heater is nearly 100% efficient, it produces small amounts of toxic carbon monoxide (CO). Inadequate ventilation can lead to CO buildup and result in death. Symptoms of inadequate ventilation include headache, dizziness, burning eyes and nose, nausea, and dry mouth or sore throat.

1. Inspect the heater for possible shipping damage. If any is found, immediately notify the dealer.

2. Follow all of the “Safety Precautions” and “Operating Information”.

3. The heater is to be hooked up to the regulator (set at 28″ water column) supplied with the heater.

4. Assemble the heater by laying the reflector down, attaching the manifold, ensuring the manifold necks are pushed all the way in, positioning and tightening the adapter clamps, and making sure the manifold mounting lug faces the correct direction. Attach the loose thermocouple end to the thermoelectric valve connection, finger tighten, and then tighten an additional maximum 1/4 turn with a 3/8″ open end wrench.

5. For models with Piezo ignition, mount the piezo bracket.

6. Mount the heater to a standard 20 or 40 # propane cylinder by placing the slot in the heater support over the cylinder flange and tightening the lock bolt assembly.

7. For Quad-Head heaters, mount onto a 100# cylinder.

8. Check the ‘O’ ring on the POL before each use and replace if worn or damaged.

9. After securing the heater, connect the POL fitting of the hose and regulator assembly to the propane cylinder valve outlet by rotating the POL nut counterclockwise and tighten with a wrench.

10. Securely tighten all gas connections.

11. Open the cylinder’s gas valve and check all connections with a soap and water solution. DO NOT USE A FLAME.

1. Fully open the valve on the propane cylinder.

2. Depress the red button on the safety valve admitting gas to the heater. Place a lighted match near the face of the ceramic element using the hole located on the side of the reflector. If the hose is filled with air, allow a few seconds for gas to reach the element. DO NOT LIGHT AT THE ORIFICE.

3. For 24-IRP models: Depress the red button on the safety valve. Push and release the piezo ignition button until the gas on the surface of the grid ignites. This may take several strikes. Ignition may be observed using the holes on the sides of the reflector. DO NOT LOOK OVER THE TOP OF THE REFLECTOR!

4. When the gas on the face of the ceramic element lights, continue to hold the button depressed for 30 seconds, then release. On multiple head units, check to see that all elements are burning.

5. If the flame goes out, wait 5 minutes and repeat the lighting procedure.

1. Securely close the valve at the propane cylinder.

2. Do not attempt to relight for 5 minutes.

1. Securely close the valve at the propane cylinder.

2. Wait 5 minutes.

3. Restart following the “Start” procedure.

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 near the surface of the ceramic grid(s).

The flame is essentially blue.

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 shutdowns of the heater.

Use only the parts as the heater was constructed, including the hose, regulator, and POL fitting. The regulator must be set to supply 28″ water column outlet pressure. A heater not working correctly must be repaired by a trained, experienced service person.

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 outdoors in accordance with Chapter 5 of the Standard for Handling of Gases ANSI/NFPA 58-1998.

HEATER MODEL	CYLINDER SIZE	OPERATING TIMES @60°F*
12IR/SPC-12IR	20# (5 – Gallons)	30 – hours
24IR/SPC-24IR	20# (5 – Gallons)	15 – hours
24IR/SPC-24IRP	20# (5 – Gallons)	15 – hours
36-IR/SPC-36IR	40# (10 – Gallons)	20 – hours
48IR/SPC-48IR	100# (25 – Gallons)	35 – hours

* If ambient temperatures will be less than 60°F increase propane supply accordingly.

During use, liquid propane in a container vaporizes, which cools the propane. This is known as the refrigeration effect. If this process is too fast or long, the propane temperature and pressure can fall too low for the heater to operate properly, even with plenty of propane remaining. Frost on the outside of the propane container can be a warning of excessive refrigeration.

Recommendations to reduce the refrigeration effect 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 container capacity.

If possible, keep containers in a warm area (under no circumstances should the heater exhaust be directed toward the propane container).