Design Dynamics VF-18N-BTB Page 22 Owner'S Operation And Installation Manual Download | Manualshive

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111826-01F

For more information, visit www.desatech.com

22

VF-18N-PDG/VF-18N-BTB

VF-24N-PDG/VF-24N-BTB

Btu (Variable)

24,000/36,000

25,000/39,000

Type Gas

Natural Gas Only

Natural Gas Only

Ignition

Piezo

Piezo

Manifold Pressure

3.5" W.C.

3.5" W.C.

Inlet Gas Pressure (in. of water)

Maximum

10.5" W.C.

10.5" W.C.

Minimum*

5.0" W.C.

5.0" W.C.

Shipping Weight

32 lbs.

34 lbs.

* For purpose of input adjustment

VF-18P-PDG/VF-18P-BTB

VF-24P-PDG/VF-24P-BTB

Btu (Variable)

24,000/36,000

25,000/39,000

Type Gas

Propane/LP Only

Propane/LP Only

Ignition

Piezo

Piezo

Manifold Pressure

10" W.C.

10" W.C. - 3.4" W.C.

Inlet Gas Pressure (in. of water)

Maximum

14" W.C.

14" W.C.

Minimum*

11" W.C.

11" W.C.

Shipping Weight

32 lbs.

34 lbs.

* For purpose of input adjustment

SPECIFICATIONS

SPECIFICATIONS

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Summary of Contents for VF-18N-BTB

Page 1: ...i fied installer service agency or the gas supplier WARNING This appliance is for instal lation only in a solid fuel burning masonry or UL127 factory built fireplace or in an approved ventless firebox It is design certified for these installations in accor dance with ANSI Z21 11 2 Exception Do not install this appliance in a factory built fireplace that includes instructions stating it has not bee...

Page 2: ...ve harm WARNING Do not use a blower insert heat ex changer insert or other accessory not approved for use with this heater WARNING Do not allow fans to blow directly into the fireplace Avoid any drafts that alter burner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting Due to high temperatures the appliance should be located ou...

Page 3: ...s may create a white powder residue within burner box or on adjacent walls and furniture 9 This heater needs fresh outside air ventilation to run properly This heater has an Oxygen Depletion Sensing ODS safety shutoff system The ODS shuts down the heater if enough fresh air is not available See Air for Combustion and Ventilation pages 4 through 6 If heater keeps shutting off see Trouble shooting p...

Page 4: ...ns to insure proper fresh air for this and other fuel burning appliances in your home PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Venti lation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The info...

Page 5: ...inued WARNING If the area in which the heater may be operatedissmallerthanthatdefinedasanunconfined space or if the building is of unusually tight construc tion provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 or applicable local codes Ifadditionalventilationtoadjoiningroomissuppliedwithgrillsoropen ings a...

Page 6: ...ou must provide two permanent openings one within 12 of the ceil ing and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide open...

Page 7: ...edroom or bathroom unless installed as a vented appliance see page 10 in a recreational vehicle where curtains furniture clothing or other flam mable objects are less than 42 inches from the front top or sides of the heater in high traffic areas in windy or drafty areas INSTALLATION AND CLEARANCES FOR VENT FREE OPERATION WARNING Maintain the minimum clearances If you can provide greater clearances...

Page 8: ...ial Clearances If Not Using Mantel Note If using a mantel proceed to If Using Mantel If not using a mantel follow the information on this page Youmusthavenoncombustiblematerial s abovethefireplaceopen ing Noncombustible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have NOTICE Non thermostat controlled heaters maybe used as a vented product If so...

Page 9: ...ollowing operate the logs only with the flue damper open raise the mantel to an acceptable height remove the mantel FLOOR CLEARANCES A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 above the combustible flooring see Figure 9 Figur...

Page 10: ...ntinued INSTALLING HEATER ASSEMBLY WARNING If installing in a sunken fireplace special care is needed You must raise the fireplace floor to allow access to heater control panel This will insure adequate air flow and guard against sooting Raise fireplace floor with noncombustible material Make sure material is secure CAUTION Do not pick up heater assembly by logs This could damage unit Only handle ...

Page 11: ...cur Install external regulator with the vent point ing down as shown in Figure 12 Pointing the vent down protects it from freezing rain or sleet CAUTION Use only new black iron or steel pipe Internally tinned copper tubing may be used in cer tain areas Check your local codes Use pipe of 1 2 diameter or greater to allow proper gas volume to heater If pipe is too small undue loss of volume will occu...

Page 12: ...ff open end of gas pipe where equipment shutoff valve was connected 3 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 Correc...

Page 13: ...s Connections Cont Figure 16 Checking Gas Joints Natural Gas Only Thermostat Gas Valve or Control Valve Location Equipment Shutoff Valve Propane LP Supply Tank Thermostat Gas Valve or Control Valve Location Thermostat Gas Valve or Control Valve Location Gas Meter Figure 15 Checking Gas Joints propane LP only ...

Page 14: ...ol knob counterclockwise to the PILOT position Press in control knob for five 5 seconds see Figure 17 Note You may be running this heater for the first time after hooking up to gas supply If so the control knob may need to be pressed in for 30 seconds or more This will allow air to bleed from the gas system WARNING Burners will come on automatically within one minute when the selector switch is in...

Page 15: ...n when you are away from home for long periods of time Heater will come on automatically with selector switch in the ON position Shutting Off Heater 1 Turn control knob clockwise to the OFF po sition 2a Set selector switch in the OFF position 2b If Using Optional Hand Held Remote Set selector switch in the OFF position to prevent draining battery Shutting Off Burner Only pilot stays lit You may sh...

Page 16: ...urns Burners On or Off and Allows You to Choose the Auto Setting Shows Temperature Setting The Log Heater will Automatically Cycle between Pilot and the Heat Setting that has been Selected Selector Toggle Switch Optional Remote Control OPERATING HEATER Continued O F F PILOT O N L O I H AUTO OFF ON Control Knob Ignitor Button Flame Adjustment Knob Selector Switch in OFF Position REMOTE OFF ON IMPOR...

Page 17: ...he thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 23 turn heater off see To Turn Off Gas to Appliance page 15 Re mote Ready Models see Troubleshooting pages 19 through 21 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or...

Page 18: ... can you could damage the pilot assembly 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner pilot and primary air inlet opening on injector holder for dust and dirt see Figure 26 3 Blow air through the ports slots and holes in the burner 4 Check the injector holder located at the end of the burner tube again Remove any large particles of dus...

Page 19: ...8 Control valve damaged REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 3 Tighten nut holding piezo ignitor to base panel of log set Nut is located behind base panel 4 Replace ignitor cable 5 Replace piezo ignitor 6 Replace pilot assembly for remote ready units Replace ignitor electrode for vari able manually controlled units 1 Turn on...

Page 20: ... Problem will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Operate burners until air is removed from line Have gas line checked by lo cal natural or propane LP gas company 3 Observe minimum installation clear ances see pages 7 through 10 4 Clean burners see Cleaning and Main tenance page 18 or replace burner orifice s 1 Turn heater off when ...

Page 21: ...fective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statement at top of page 1 Hand held remote control is too close to heater Remote Ready Models Only REMEDY 1 Replace 9 volt batteries in receiver and remote control 1 This is common with most heaters If noise is excessive contact qualified service per son 1 Open window to ventilate room Stop us ing odor causing produc...

Page 22: ...ter Maximum 10 5 W C 10 5 W C Minimum 5 0 W C 5 0 W C Shipping Weight 32 lbs 34 lbs For purpose of input adjustment VF 18P PDG VF 18P BTB VF 24P PDG VF 24P BTB Btu Variable 24 000 36 000 25 000 39 000 Type Gas Propane LP Only Propane LP Only Ignition Piezo Piezo Manifold Pressure 10 W C 10 W C 3 4 W C Inlet Gas Pressure in of water Maximum 14 W C 14 W C Minimum 11 W C 11 W C Shipping Weight 32 lbs...

Page 23: ...his will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA Technical Service Depart ment at 1 866 672 6040 When calling DESA International have ready your name your address model and serial numbers of your heater how heater was malfunctioning type of gas used pr...

Page 24: ...PDG 111794 03 VF 18N BTB VF 18P PDG 111794 04 VF 18P BTB Log sets and mounting plates are ordered as an assembly REMOTE MODELS ONLY ILLUSTRATED PARTS BREAKDOWN REMOTE READY MODELS AND REMOTE CONTROLLED MODELS VF 18N PDG VF 18N BTB VF 18P PDG VF 18P BTB ILLUSTRATED PARTS BREAKDOWN VF 18N PDG VF 18P PDG VF 18N BTB VF 18P BTB ...

Page 25: ...OLLED MODELS VF 24N PDG VF 24N BTB VF 24P PDG VF 24P BTB ILLUSTRATED PARTS BREAKDOWN VF 24N PDG VF 24P PDG VF 24N BTB VF 24P BTB 3 Log sets and mounting plates are ordered as an assembly REMOTE MODELS ONLY GTA Replacement Part Numbers Model Number GTA Part number VF 24N PDG 111794 06 VF 24N BTB VF 24P PDG 111794 02 VF 24P BTB ...

Page 26: ...1802 01 111803 02 111803 01 111800 01 111817 01 14396 111804 01 111819 02 111807 02 116791 01 111435 01 103784 01 103784 02 099998 01 111817 02 111796 02 103778 01 111828 01 111824 01 111816 01 111793 01 see table page 25 111827 01 111803 02 111803 01 111800 01 111817 01 14396 111804 02 111819 01 111807 01 116791 01 111435 01 103784 01 103784 02 099998 01 112806 01 112806 02 111817 02 111796 02 11...

Page 27: ...all models Your vent free gas appliance requires regular cleaning and maintenance to prevent performance problems This kit gives you the tools and instructions to make it easy to clean all critical areas of your appliance INFORMATION VIDEO 108917 01 For all models A care and maintenance video is available by call ACCESSORIES Purchasetheseheateraccessoriesfromyourlocaldealer Iftheycannot supply the...

Page 28: ...111826 01F For more information visit www desatech com 28 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 29: ...ege Completed Graduate School 13 Age of Purchaser Under 20 20 29 30 39 40 49 50 59 60 or Over 14 Buyer s total annual household income Under 15 000 15 000 to 19 999 20 000 to 34 999 35 000 to 49 999 50 000 to 74 999 75 000 to 99 999 100 000 and Over 15 Store where product was purchased Name ______________________________________ City _______________________ State __________ 16 In choosing this pro...

Page 30: ...111826 01F For more information visit www desatech com 30 2701 S Harbor Blvd Santa Ana CA 92704 www desatech com Postage Required TM ...

Page 31: ...__________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ __________________________________________________________________________...

Page 32: ...arranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic ...

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