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CARBON MONOXIDE POISONING MAY LEAD TO DEATH 

 

 When used without fresh air, decorative gas appliances may give off carbon monoxide, an odorless, colorless,  

poisonous  gas. Some people, pregnant women, persons with heart or lung disease, anemia, persons under the  

influence of alcohol and persons who live at high altitudes are more affected by carbon monoxide than others. 

 

Early signs of carbon monoxide poisoning resemble the flu and include; headache, dizziness and/or nausea.  If you 

have these symptoms, the burner or  the appliance may not be installed or working properly, or the flue may be 

blocked. GET FRESH AIR AT ONCE! Verify that the gas log set is properly arranged and have the heater and  

chimney flue serviced before using again.  

WARNING

 

During manufacturing, assembly and packaging, various components of ALTERNA™ are exposed to certain oils or 

films. These are not harmful but may produce annoying smoke and smells as they are burned off during the initial 

operation of the appliance, possibly causing headaches, eye or lung irritation. This is a normal occurrance and only 

temporary. The initial break-in operation should last 2-3 hours with the burner at the highest setting. Provide maximum 

ventilation by opening windows, doors and the chimney flue (if using a vented model) to allow odors to dissipate.  

The only odor remaining after this initial break-in period will be the normal odors associated with the combustion of 

Natural or Propane Gas and/or related to your indoor environment (see page 23). 

WARNING—Proposition 65 Statement 

 

If not installed, operated and maintained in accordance with these instructions, this product could expose you to 

substances in fuel or from fuel combustion which are known to the State of California to cause cancer,  

birth defects or other reproductive harm.

 

IMPORTANT INFORMATION 

• 

Due to high temperatures

, the appliance should be located out of traffic and away from furniture and draperies. 

• 

Children and adults 

should be alerted to the hazard of high surface temperatures and should stay away to avoid burns or 

clothing ignition. 

• 

Young children 

should be carefully supervised when they are in the same room with the appliance. 

• 

Do not place 

clothing or other flammable material on or near the appliance. 

• 

Any safety screen 

or guard removed for servicing an appliance must be replaced prior to operating the heater. 

• 

Installation and repair 

should be done by a qualified service person. The appliance should be inspected before use and at 

least annually by a professional service person. More frequent cleaning may be required due to excessive lint from  
carpeting, bedding material etc. It is imperative that control compartments, burners and circulating air passageways of the  
appliance be kept clean. 

• 

WARNING: 

Any change to this heater or its controls can be dangerous. 

• 

This appliance 

is intended for supplemental heating.  It should not be used as a primary heat source for a dwelling. 

• 

WARNING: 

Failure to keep the primary air opening(s) of the burner clean may result in sooting and property damage. 

• 

Keep appliance area 

clear and free from combustible materials, gasoline and other flammable vapors and liquids. 

• 

DO NOT 

use this room heater if any part has been under water.  Immediately call a qualified service technician to inspect 

the room heater and to replace any part of the control system and any gas control that has been under water. 

• 

WARNING: 

Before installing in a solid-fuel burning fireplace, the chimney flue and firebox must be cleaned of soot,  

creosote, ashes and loose paint by a qualified  chimney cleaner. 

• 

WARNING: 

Do not allow fans to blow directly into the fireplace.  Avoid any drafts that alter burner flame patterns. 

• 

WARNING: 

Do not use a blower insert, heat exchanger insert or any other accessory not approved for use with this heater. 

• 

A fireplace screen 

must be in place when the appliance is operating and, unless other provisions for combustion air are 

provided, the screen shall have an opening(s) for introduction of combustion air. 

• 

Solid fuels 

shall not be burned in a fireplace where this ALTERNA VF heater is installed. 

• 

WARNING: 

Glass doors must be fully opened when appliance is in operation to allow for safe combustion, cooling of  

components and venting. 

• 

Any outside air ducts 

and/or ash dumps in the fireplace shall be permanently closed at the time of appliance installation. 

• 

State or local codes 

may only allow operation of this appliance in a vented configuration. Check your  state or local codes.  

• 

DO NOT 

use this appliance, in the vent-free application, in sleeping quarters, bathrooms or recreational vehicles.  This  

appliance may be used in sleeping quarters and bathrooms if used in a vented application, subject to local codes. 

• 

Avoid contact 

with the objects, chassis or another part which may be hot during operation. 

• 

This appliance is equipped 

with an ODS (Oxygen Depletion Sensor) pilot light safety system , which is designed to 

shut the appliance off in the absence of inadequate fresh air.  Additional ventilation may be obtained by opening a 
window an inch or two, or a door to another room.  See Page 23 for nuisance shutdown issues and correction. 

Summary of Contents for DF-AFB20-ME-N-B

Page 1: ...U S A www rasmussen biz THE GAS LOG COMPANY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to...

Page 2: ...before use and at least annually by a professional service person More frequent cleaning may be required due to excessive lint from carpeting bedding material etc It is imperative that control compar...

Page 3: ...3 Wireless Remote Transmitter Devices For SE Models each sold separately A Wireless Hand Held ON OFF Remote SR 2R B Wireless Hand Held ON OFF Remote with Thermostat THR 2R C Wireless Wall Timer 30 60...

Page 4: ...rease the Actual Btu Hr used by the same amount You may also choose to operate your ALTERNA as a Vented Appliance instead See notes and warnings regarding vented installation on Page 7 Adequate Combus...

Page 5: ...plumbing electrical and gas lines and at other openings VENT FREE APPLICATIONS COMBUSTION AIR CALCULATIONS COMBUSTION AIR CALCULATIONS WORKSHEET 1 Room Width Length Height W x L x H Vol ft 1a 1a 1b 1...

Page 6: ...fireplace mantel or facing will not catch fire In most cases they should also be adequate to prevent any discoloration or warping due to heat However each and every decorative gas appli ance installa...

Page 7: ...or remove it completely WARNING CHECK FOR PROPER VENTING A properly sized unobstructed chimney will normally vent all products of combustion Any odor or smoke detected inside the room is an indication...

Page 8: ...and proper gas pressures 2 Seal threads of gas supply with pipe compound then thread 1 2 FIP x 3 8 Flared Elbow Figures 3 and 4A onto the Gas Supply Pipe Figures 3 and 4B and wrench tighten 3 Place Th...

Page 9: ...d row of 3 Full FireBalls on top of the first row with flat side resting against Flame Rod Figures 2A and B FIGURE 6 FIGURE 5 A B Second row with flat side resting against Flame Rod STEP THREE Repeat...

Page 10: ...o the next hole with the tapered end facing down Figure 8 Next place the Cube CU 44 into the third locator hole with the rear right corner resting on the edge of the burner allowing it to lean slightl...

Page 11: ...gure 11 Next place the Cube CU 44 into the third locator hole with the rear right corner resting on the edge of the burner allowing it to lean slightly forward into the locator hole Figure 12 Now plac...

Page 12: ...ightly forward into the locator hole Figure 15 The Fireball FB 4 will fit into the next hole with the tapered end facing down Figure 14 Last place the Cylinder CY 63 into the 1st hole on the right at...

Page 13: ...sponding locator hole Place each FireStone on the 2nd row on top of those on the first row with back side of each resting against Flame Rods see Figure 20 following page WARNING Failure to position th...

Page 14: ...8 Top View FIRESTONES PLACEMENT FOR DF AFS30 cont d Top Row The AFS30 should look like the illustration below when completed ST1 ST3 ST17 ST2 ST20 ST10 ST15 ST18 ST16 ST19 under ST20 ST1 ST3 ST17 ST2...

Page 15: ...ST2 Front View Front View Front View ST1 Top View Bottom Row ST3 ST17 ST2 ST1 ST2 ST3 ST1 ST17 ST3 ST17 ST2 ST1 ST2 ST3 ST1 ST17 FIGURE 22 Top View FIGURE 23 Top View When placing FireStones over eac...

Page 16: ...10 ST3 ST2 ST16 ST1 ST2 ST15 ST18 ST16 ST17 ST10 ST3 ST3 ST10 ST18 ST15 ST16 ST2 ST1 ST17 FIRESTONES PLACEMENT FOR DF AFS24 cont d WARNING Failure to position the parts in accordance with these diagra...

Page 17: ...injury ST17 ST2 Front View Front View ST1 Top View Bottom Row ST17 ST2 ST1 ST2 ST17 ST1 ST17 ST2 ST1 ST2 ST17 ST1 FIGURE 27 Top View FIGURE 28 Top View When placing FireStones over each locator hole c...

Page 18: ...0 should look like the illustrations below when completed ST15 Top View ST16 Front View ST18 Top View Top Row WARNING Failure to position the parts in accordance with these diagrams or failure to use...

Page 19: ...Begin by slowly pouring glass onto the surface of the Alterna being careful not to let any glass drop into the pilot thermocouple or burner areas Figures 31 and 33 Glass in either of these areas may...

Page 20: ...ace screen is closed when the appliance is operating NOTE Any beeping or unexpected shutdown may be the over temperature safety feature in the receiver If this happens move the receiver into a cooler...

Page 21: ...n Valve Knob to ON to light burner If burner fails to light or if pilot goes out repeat steps 1 through 4 5 Adjust the burner flame height by turning the EASY Safety Valve Knob clockwise to lower and...

Page 22: ...ine attaches to the pilot See page 13 Figures 23A and B STEP TWO PILOT ADJUSTMENT ALL MODELS STEP THREE BURNER OPERATION RE VARIABLE FLAME HEIGHT MODELS AND SE REMOTE READY FIGURE 39 FIGURE 37 Slide S...

Page 23: ...rner should be periodically cleaned of debris Use compressed air and or a soft bristle brush to clean burner ports and air shutter area Air shutters should not be altered from factory settings WARNING...

Page 24: ...d Make sure the gas pressure coming into the fireplace falls between the minimum and maximum pressures allowed with this gas set refer to the tables pages 5 and 6 Blocked ports low flame only Free the...

Page 25: ...f incidental or consequential damages so the above limitation or exclusion may not apply to you 3 The maximum liability of RASMUSSEN in connection with this limited warranty shall not in any case exce...

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