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UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Design Dynamics Vent-free Models Also Design-Certiﬁed As Vented Decorative Appliances

Save this manual for future reference.

WARNING: If the information in this manual

is not followed exactly, a ﬁre or explosion

may result causing property damage, per-

sonal injury, or loss of life.

— 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 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 sup-

plier’s instructions.

• If you cannot reach your gas supplier, call

the ﬁre department.

— Installation and service must be performed

by a qualiﬁed installer, service agency, or

the gas supplier.

WARNING: Improper installation, adjust-

ment, alteration, service, or maintenance

can cause injury or property damage. Refer

to this manual for correct installation and

operational procedures. For assistance

or additional information consult a quali-

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 been tested or should not be

used with unvented gas logs.

WARNING: This is an unvented gas-ﬁred heater. It uses air (oxygen) from the room in which it

is installed. Provisions for adequate combustion and ventilation air must be provided. Refer

Air for Combustion and Ventilation

section on page 4 of this manual.

This appliance may be installed in an aftermarket,* manufactured (mobile) home, where not

prohibited by local codes.
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.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

Warning: This product must be installed by a Licensed Plumber or Gas Fitter when installed

within The Commonwealth of Massachusetts.

For more information, visit www.desatech.com

VF-24N-EMU
VF-24P-EMU
VF-18N-EMU
VF-18P-EMU

ANSI Z21.11.2-2002
Approved

Certiﬁed

Содержание VF-18N-EMU

Страница 1: ...quali 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 been...

Страница 2: ...d carbon monoxide poisoning WARNING Anychangetothisheateroritscontrols can be dangerous 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 ...

Страница 3: ...ff If heated the vapors from these prod ucts 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 heate...

Страница 4: ...structions 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...

Страница 5: ...ed 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 add th...

Страница 6: ...u 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 openin...

Страница 7: ...oom 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 from...

Страница 8: ...al 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 y...

Страница 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 Figure 6 ...

Страница 10: ...Continued 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 asse...

Страница 11: ... 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 occur CONNECTING TO GAS SUPPLY Ins...

Страница 12: ...ff Valve 2 Cap off 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 ...

Страница 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 ...

Страница 14: ...l 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 th...

Страница 15: ...hen 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 shut ...

Страница 16: ...I H AUTO OFF ON Control Knob Ignitor Button Flame Adjustment Knob Selector Switch in OFF Position REMOTE OFF ON Remote On Off Fireplace Remote IMPORTANT Do not leave the selector switch in the RE MOTE or ON position when the pilot is not lit This will drain the battery 2 Press the ON OFF button to turn the burners on and off When turning burners off the pilot will remain lit IMPORTANT Be sure to p...

Страница 17: ...uple 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 orange color Figure 22 Correct Pilot Flame Pat...

Страница 18: ...ou 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 26a and 26b 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 ...

Страница 19: ... 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 ...

Страница 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 us...

Страница 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 product...

Страница 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 EMU VF 24P EMU 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...

Страница 23: ...is 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 pro...

Страница 24: ...el Number GTA Part number VF 18N EMU 111794 03 VF 18P EMU 111794 04 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 EMU VF 18P EMU ILLUSTRATED PARTS BREAKDOWN VF 18N EMU VF 18P EMU ...

Страница 25: ...S VF 24N EMU VF 24P EMU ILLUSTRATED PARTS BREAKDOWN VF 24N EMU VF 24P EMU 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 EMU 111794 01 VF 24N EMU 111794 02 1 4 5 7 8 9 10 14 15 13 12 16 17 18 19 20 21 22 11 6 23 24 25 26 27 28 30 31 29 32 24 ...

Страница 26: ...02 111817 02 111796 02 112376 01 111828 01 111803 03 111824 01 111816 01 111817 04 111819 09 112809 04 111804 06 112809 02 112809 03 111792 01 111793 01 see table page 25 111827 01 111803 02 111803 01 111800 01 111817 01 112823 01 111804 02 111819 06 111807 02 111796 01 097159 04 103784 01 103784 02 099998 01 112806 01 112806 02 111817 02 111796 02 103778 01 111828 01 111824 01 111816 01 111817 04...

Страница 27: ...ed 1 8 lb bag CLEANING KIT GCK Not Shown For 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 ing 1 866 672 6040 ACCESSORIES Purchaset...

Страница 28: ...111826 05 For more information visit www desatech com 28 THIS PAGE INTENTIONALLY LEFT BLANK ...

Страница 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...

Страница 30: ...111826 05 For more information visit www desatech com 30 2701 S Harbor Blvd Santa Ana CA 92704 www desatech com Postage Required TM ...

Страница 31: ..._________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ___________________________________________________________________________...

Страница 32: ...rranty 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 co...

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