Manuale d’uso / di manutenzione del prodotto VN20BT del fabbricante Desa
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Sav e this manual for future reference. For more information, visit www .desatech.com W ARNING: If the information in this manual is not fol- lowed exactly , a fire or explosion may result causing property damage, personal injury or loss of life.
www .desatech.com 107886-01J 2 W ARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer , service agency or the gas supplier .
www .desatech.com 107886-01J 3 SAFETY INFORMA TION IMPORTANT: Read this owner’s man ual caref ull y a nd compl ete ly b e f o r e t r y i n g t o a s s e m b l e , operate or service this heater.
www .desatech.com 107886-01J 4 6. Keep all air openings in front and bottom of heater clear and free of debris. This will insure enough air for proper combustion. 7. If heater shuts off, do not relight until you provide fresh, outside air . If heater keeps shutting off, have it serviced.
www .desatech.com 107886-01J 5 AIR FOR COMB USTION AND VENTILA TION WAR NING : Thi s hea ter shall not be installed in a confined space or unusually tight con - struction unless provisions are prov ide d fo r ad equa te c omb us- tion and ventilation air.
www .desatech.com 107886-01J 6 AIR FOR COMB USTION AND VENTILA TION Continued DETERMINING FRESH-AIR FLOW FOR HEA TER LOCA TION Determining if Y ou Have a Confined or Unconfined Space Use this work sheet to determine if you have a con- fined or unconfined space.
www .desatech.com 107886-01J 7 VENTILA TION AIR V entilation Air From Inside Building This fresh air would come from an adjoining un - confined space.
www .desatech.com 107886-01J 8 INST ALLA TION ITEMS Before installing heater , make sure you have the items listed below . • for propan e/LP gas, exter nal regula tor (suppl ied by installer) • pi.
www .desatech.com 107886-01J 9 THERMOST A T SENSING BULB The thermostat sensing bulb has been placed below the heater . 1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hardware package. 2. Sn ap cla mp into up per moun ti ng hol e as sho wn in Figu re 5.
www .desatech.com 107886-01J 10 INST ALLA TION Continued Attaching Mounting Bracket T o W all Note: W all anchors, mounting screws and spacers are in hardware package. The hardware package is provided with heater . Attaching T o W all Stud Method For attaching mounting bracket to wall studs 1.
www .desatech.com 107886-01J 1 1 4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching T o W all Anchor Method , page 10 If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64" drill bit.
www .desatech.com 107886-01J 12 IMPORT ANT : Hold the pressure regulator with wrench when connecting it to gas piping and/or fittings. Do not over tighten pipe connection to regulator . The regulator body could be damaged. CA U T I ON : U se o n l y n e w , b la c k i r o n or s te el p ip e.
www .desatech.com 107886-01J 13 INST ALLA TION Continued CAUTION: For propane/LP gas, make sure external regula- tor has been installed between propane/LP supply and heater . See guidelines under Connect- ing to Gas Supply , page 1 1. PRESSURE TESTING GAS SUPPL Y PIPING SYSTEM T est P ress ure s In E xc ess Of 1/ 2 PS IG ( 3.
www .desatech.com 107886-01J 14 5. T urn contro l knob counter clockwise to the PILOT position. Press in control knob for five (5) seconds (see Figur e 19). Note: Y ou may be running this heater for the first time after hooking up to gas sup - ply .
www .desatech.com 107886-01J 15 BURNER FLAME P A TTERN WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.
www .desatech.com 107886-01J 16 Figure 23 - Correct Burner Flame Pattern Y ellow T ipping Figure 24 - Incorrect Burner Flame Pattern 1/2 Glass Height Blue Flame 1/2 Glass Height CLEANING AND MAINTENANCE W ARNING: T urn off heater and let cool before cleaning.
www .desatech.com 107886-01J 17 SPECIFICA TIONS VN20BT VN30BT Btu (V ariable) 10,000/20,000 15,000/30,000 T ype Gas Natural Natural Ignition Piezo Piezo Pressure Regulator Setting 3" W .C. 3" W .C. Inlet Gas Pressure (in. of water) Maximum 10.
www .desatech.com 107886-01J 18 TROUBLESHOO TING W AR NIN G: T urn off a nd u np lu g heat er and let c oo l bef ore ser vici ng . Only a qualified service person should service and repair heater . CAUTION: Never use a wire, needle or similar object to clean ODS/pilot.
www .desatech.com 107886-01J 19 POSSIBLE CAUSE 1 . Control knob not fully pressed in 2. Control knob not pressed in long enough 3. Sa fet y in ter lo ck s ys tem h as been triggered 4. Equipment shutoff valve not fully open 5 . Thermocouple connection loose at control valve 6.
www .desatech.com 107886-01J 20 TROUBLESHOO TING Continued W ARNING: 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.
www .desatech.com 107886-01J 21 TROUBLESHOO TING Continued POSSIBLE CAUSE 1 . Gas leak. See Warning statement on page 21 2. Control valve defective 1. Foreign matter between con - trol valve and burner 2 . Gas leak. See Warning statement on page 21 1.
www .desatech.com 107886-01J 22 ILL USTRA TED P ARTS BREAKDOWN MODELS VN20BT , VP20BT VN30BT , VP30BT 2 3 5 6 8 9 10 10 1 1 12 13 14 16 18 19 4 7 1 15 17 20.
www .desatech.com 107886-01J 23 P ARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 21 of this manual. KEY P ART NUMBER NO. VN20BT VP20BT VN30BT VP30BT DESCRIPTION QTY .
Model ____________________________________ Serial No. __________________________________ Date of Purchase ____________________________ WARRANTY INFORMA TION KEEP THIS WARRANTY LIMITED WARRANTY VENT -F.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Desa VN20BT è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Desa VN20BT - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Desa VN20BT imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Desa VN20BT ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Desa VN20BT, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Desa VN20BT.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Desa VN20BT. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Desa VN20BT insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
