Desa VS24NR VS30NR - Manuals

Page 2 - DANGER: Carbon monoxide; WARNINGS; WARNING: Any change to

2 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL 1. This appliance is only for use with thetype of gas indicated on the rating plate.This appliance is not convertible for usewith other gases. 2. If you smell gas• shut off gas supply• do not try to light any appliance• do not touch any ele...

Page 3 - OWNER’S MANUAL; Figure 1 - VS24NR Shown; LOCAL CODES; Where listed vented decorative logs; UNPACKING; OPERATION; CAUTION: Do not remove the

3 103449 OWNER’S MANUAL PRODUCTIDENTIFICATION Figure 1 - VS24NR Shown LOCAL CODES Install and use heater with care. Follow alllocal codes. In the absence of local codes, usethe latest edition of The National Fuel GasCode ANS Z223, also known as NFPA 54*. *Available from: American National Standards ...

Page 4 - Unusually Tight Construction; per

4 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL Today’s homes are built more energy effi-cient than ever. New materials, increasedinsulation, and new construction methodshelp reduce heat loss in homes. Home ownersweather strip and caulk around windows anddoors to keep the cold air out an...

Page 5 - DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION; Determining if You Have a Confined or Unconfined Space; Continued

5 103449 OWNER’S MANUAL DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless ...

Page 6 - Figure 2 - Ventilation Air from Inside Building; Ventilation Air From Outdoors; Do not provide openings; Figure 3 - Ventilation Air from Outdoors

6 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL AIR FORCOMBUSTION ANDVENTILATION Continued VENTILATION AIR Ventilation Air From InsideBuilding This fresh air would come from an adjoiningunconfined space. When ventilating to anadjoining unconfined space, you must pro-vide two permanent op...

Page 7 - MINIMUM FIREPLACE; INSTALLATION; CHECK GAS TYPE; B. Clearances from the top of the fireplace

7 103449 OWNER’S MANUAL MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall Ceiling Floor 18" 24" 30" 16" 42" 5" NOTICE: A qualified service per-son must install heater. Followall local codes. WARNING: Before installing in a solid fuel burning fireplace,th...

Page 8 - Requirements for Safe Installation; Noncombustible material OK.; If Using Mantel; If using a mantel, proceed to If Using

8 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL Heat ResistantMaterial (A) Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace NoncombustibleMaterial Distance (A) Requirements for Safe Installation 12" or more Noncombustible material OK. Between 8" and ...

Page 9 - MANTEL CLEARANCES; Figure 7 - Minimum Mantel Clearances When Using Hood; flue damper open; FLOOR CLEARANCES; A. If installing appliance on the floor level,

9 103449 OWNER’S MANUAL MANTEL CLEARANCES In addition to meeting noncombustible mate-rial clearances, you must also meet requiredclearances between fireplace opening andmantel shelf. If you do not meet the clear-ances listed below, you will need a hood. Determining Minimum MantelClearances If you me...

Page 10 - Installation Items Needed; Figure 10 - Attaching Damper Clamp; Masonry Fireplace

10 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL Installation Items Needed • hardware package (provided with heater) • approved flexible gas hose (not provided) (if allowed by local codes) • sealant (resistant to propane (LP) gas, not provided) • electric drill with 3/16" drill bit N...

Page 11 - WARNING: Never connect; Figure 13 - Gas Connection; CAUTION: Avoid damage to

11 103449 OWNER’S MANUAL Installation Items Needed Before installing heater, make sure you havethe items listed below. • piping (check local codes) • sealant (resistant to LP gas) • manual shutoff valve * • test gauge connection * • sediment trap • tee joint • pipe wrench * An A.G.A. design-certifie...

Page 12 - Figure 15 - Checking Gas Joints; Figure 14 - Manual Shutoff Valve; WARNING: Never use an open; Correct all leaks at once.

12 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL ON POSIT O POS Open Closed ManualShutoffValve Figure 15 - Checking Gas Joints Test Pressures Equal To or Less Than1/2 PSIG 1. Close manual shutoff valve (see Fig-ure 14). 2. Pressurize supply piping system by eitherusing compressed air or ...

Page 13 - WARNING: Failure to position

13 103449 OWNER’S MANUAL Top Middle Log (#4) Figure 20 - Installing Crossover Log (#5) CrossoverLog (#4) Hole Peg Cutout INSTALLATION Continued Figure 19 - Installing Top Log (#4) Hole Peg Peg BottomMiddle Log Hole INSTALLING LOGS Figure 16- Installing Front Logs(#1L and #1R) Figure 17 - Installing ...

Page 14 - WARNING: Burners will come; Figure 21 - Control Knob and Ignitor Button Location; FOR YOUR SAFETY; WARNING

14 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL Ignitor Electrode Pilot Burner Figure 22 - Pilot WARNING: Burners will come o n a u t o m a t i c a l l y w i t h i n o n eminute when the selector switchis in the ON position after thepilot is lit. Figure 21 - Control Knob and Ignitor But...

Page 15 - WARNING: Make sure the; Shutting Off Heater; All remote control accessories must; Thermostat Control Operation; Lighting; Do not leave the se-

15 103449 OWNER’S MANUAL OPERATINGHEATER Continued TO TURN OFF GAS TO APPLIANCE 1. Follow steps 1 through 6 under Light-ing Instructions, page 14. 2. Depress control knob and light pilotwith match. 3. Keep control knob pressed in for 30seconds after lighting pilot. After 30seconds, release control k...

Page 16 - To turn the pilot off,

16 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL OPERATINGHEATER Continued Figure 23 - Setting the Selector Switch, Control Knob, and FlameAdjustment Knob for Remote Operation O F F PIL O T O N LO IH ONOFFREMOTE Selector Switch inRemote Position Control Knob inOn Position Flame Adjustmen...

Page 17 - WARNING: If yellow tipping; Figure 25 - Correct Pilot Flame Pattern; PILOT FLAME PATTERN; • turn heater off (see To Turn Off Gas to

17 103449 OWNER’S MANUAL WARNING: If yellow tipping occurs, your heater could pro-duce increased levels of carbonmonoxide. If front burner flamepattern shows yellow tipping, fol-low instructions at bottom of thispage. Yellow flame on rear burneris normal. Thermocouple Pilot Burner Figure 25 - Correc...

Page 18 - WARNING: Turn off heater; LOGS; • If you remove logs for cleaning, refer to; Figure 30 - Pilot Inlet Air Hole

18 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL CLEANING ANDMAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burners, and cir-culating air passageways ofheater clean. Inspect these areasof heater before each use. Haveheater inspect...

Page 19 - POSSIBLE CAUSE; TROUBLESHOOTING; REMEDY; All troubleshooting items are listed in

19 103449 OWNER’S MANUAL WARNING: Turn off and un- plug heater and let cool beforeservicing. Only a qualified ser-vice person should service andrepair heater. CAUTION: Never use a wire, needle, or similar object to cleanODS/pilot. This can damage ODS/pilot unit. POSSIBLE CAUSE 1. Ignitor electrode n...

Page 20 - nance, page 18) or replace burner orifice; OBSERVED PROBLEM

20 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL TROUBLESHOOTING Continued REMEDY 1. Contact local natural gas company2. Clean burner(s) (see Cleaning and Main- tenance, page 18) or replace burnerorifice(s) 3. Contact qualified service person4. Replace burner orifice(s)5. Put remote sele...

Page 21 - IMPORTANT

21 103449 OWNER’S MANUAL REMEDY 1. This is common with most heaters. If noise is excessive, contact qualified ser-vice person 1. Open window to ventilate room. Stop us- ing odor causing products while heateris running 2. Refill supply tank3. Locate and correct all leaks (see Check- ing Gas Connectio...

Page 22 - PARTS UNDER WARRANTY; SPECIFICATIONS; When Gas Pressure Is Too Low

22 103449 UNVENTED NATURAL GAS LOG HEATER DESA INTERNATIONAL REPLACEMENTPARTS Note: Use only original replacement parts. This will protect your warranty coverage forparts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product.If they can’t supply original replacemen...

Page 23 - FIREPLACE HOOD; ACCESSORIES; FIREBOXES

23 103449 OWNER’S MANUAL Purchase these heater accessories from yourlocal dealer. If they can not supply theseaccessories, call DESA International’s PartsDepartment at 1-800-972-7879 for referralinformation. You can also write to the ad-dress listed on the back page of this manual. FIREPLACE HOOD Bl...

Page 25 - PARTS LIST; KEY

25 103449 OWNER’S MANUAL PARTS LIST CFS18NRVS18NRVS24NRVS30NR This list contains replaceable parts used in your heater. When ordering parts, follow theinstructions listed under Replacement Parts on page 22 of this manual. KEY PART NUMBERS NO. VS18NR/CFS18NR VS24NR VS30NR DESCRIPTION QTY. 1L 103580-0...

Page 26 - KEEP THIS WARRANTY; WARRANTY INFORMATION; Model; INTERNATIONAL; NOT A UPC

LIMITED WARRANTY VENT-FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for four (4) years and five (5) years onstainless steel burners from the date of first purchase, provided that the product has been properly installed, oper...