Desa VYM27NR manual

UNVENTED (VENT -FREE) NA TURAL GAS LOG HEA TER Also Design-Certified As A V ented Decorative Appliance WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of[...]

2 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. 2. If you smell gas • shut off gas supply • do not try to light any appliance • do not touch any electrical switch; do not use any p[...]

3 104674 OWNER’S MANUAL PRODUCT IDENTIFICA TION Figure 1 - Product Identification Flame-Max ® VYM27NR PRODUCT FEA TURES OPERATION This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by realistic, dancing yellow flames. This heater is designed for vent-free operation wi[...]

4 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® PROVIDING ADEQUATE VENTILATION The following ar e excerpts from National Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- tion 5.3, Air for Combustion and Ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1. Unusually Tight Construction 2. Unco[...]

5 104674 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 passageways or ventilation grills between the ro[...]

6 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® AIR FOR COMBUSTION AND VENTILA TION Continued Figure 3 - Ventilation Air from Outdoors Figure 2 - Ventilation Air from Inside Building Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Or Remove Door into Adjoining Room, Option [...]

7 104674 OWNER’S MANUAL WARNING: Never install the heater • in a bedroom or bathroom un- less installed as a vented ap- pliance, see page 10 • in a recreational vehicle • where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top, or sides of the heater • in high traffic areas • in windy [...]

8 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® Minimum Noncombustible Material Clearances If Not Using Mantel Note: If using a mantel, proceed to If Using Mantel . If not using a mantel, follow the information below. You must have noncombustible material(s) above both fireplace openings. Noncom- bustible materials (such as slate,[...]

9 104674 OWNER’S MANUAL INST ALLA TION Continued Figure 6 - Minimum Mantel Clearances Without Using Hood Figure 7 - Minimum Mantel Clearances When Using Hood Continued MANTEL CLEARANCES In addition to meeting noncombustible ma- terial clearances, you must also meet required clearances between fireplace open- ings and mantel shelf on each side of [...]

10 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® INSTALLING HEATER BASE ASSEMBLY WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak. WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fire- place floor [...]

11 104674 OWNER’S MANUAL INST ALLA TION Continued CONNECTING TO GAS SUPPLY NOTICE: A qualified service per- son must connect heater to gas supply. Follow all local codes. Installation Items Needed Before installing heater, make sure you have the items listed below. • piping (check local codes) • sealant (resistant to LP gas) • manual shutof[...]

12 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff v alve (see Fig- ure 14). 2. Pressurize supply piping system by ei- ther using compressed air or opening main gas valve located on or near gas meter . 3 . Check all joints from gas meter to manual shutoff v alve ([...]

13 104674 OWNER’S MANUAL WARNING: Failure to posi- tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in prop- erty damage or personal injury. INSTALLING LOGS INST ALLA TION Continued CAUTION: After installation and periodically thereafter, check to ensure that no flame [...]

14 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® LIGHTING INSTRUCTIONS OPERA TING HEA TER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by[...]

15 104674 OWNER’S MANUAL Ignitor Electrode Pilot Burner Figure 21 - Pilot CAUTION: Do not try to adjust heating levels by using the manual shutoff valve. WARNING: Make sure the selector switch is in the OFF po- sition when you are away from home for long periods of time. Heater will come on automati- cally with selector switch in the ON position.[...]

16 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® ON OFF REMOTE O F F P I L O T O N L O I H TEMP ST A TUS HI LO MAN ON AUT O OFF Increases Room Temperature Decreases Room Temperature Turns Burners On and Off Shows Current Operation Mode Shows Temperature Setting Allows Burners to be Turned On and Off with the Hand- Held Remote Unit[...]

17 104674 OWNER’S MANUAL TROUBLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit. POSSIBLE CAUSE 1. Ignitor electrode not connected to igni- tor cable 2. Ignitor[...]

18 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Moisture/condensation noticed on windows Heater produces a whistling noise when burner is lit White powder residue [...]

19 104674 OWNER’S MANUAL WARNING: If you smell gas • Shut off gas supply. • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, cal[...]

20 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® SPECIFICA TIONS 27" Remote Ready Btu (Variable) 20,000/39,000 Type Gas Natural Gas Only Ignition Piezo Piezo Pressure Manifold 3.5" W.C. Inlet Gas Pressure (in. of water) Maximum 10.5" Minimum* 5" Shipping Weight 32 lbs. * For input adjustment TECHNICAL SER VICE [...]

21 104674 OWNER’S MANUAL CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleanin[...]

22 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® ILLUSTRA TED PA R T S BREAKDOWN VYM27NR 5 O F F P I L O T O N H I L O O F F P I L O T O N H I L O 1 9 3 2 13 12 15 14 18 17 12 12 16 21 12 19 6 8 7 4 11 12 20 10 9 23 22[...]

23 104674 OWNER’S MANUAL P AR TS LIST VYM27NR This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 20 of this manual. KEY NO. Part Number DESCRIPTION QTY. 1 104676-01 Log, Multi-Sided 1 2 103779-01 ODS Pilot (NG) 1 3 098249-01 ODS Nut 2 4 104592-01 Burner Out[...]

24 104674 UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME MAX ® ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International’s Parts Department at 1-800-972-7879 for referral information. You can also write to the ad- dress listed on the back page of this manual. LAVA R[...]

25 104674 OWNER’S MANUAL NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _____________________________[...]

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 from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim under this [...]