Design Dynamics VF-18N-PJD Page 1 Owner'S Operation And Installation Manual Download

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For more information, visit www.desatech.com

WARNING: 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.

— 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 supplier’s instructions.

• If you cannot reach your gas supplier, call the ﬁre

department.

— Installation and service must be performed by a quali-

ﬁed installer, service agency or the gas supplier.

VF-24N-PJD, VF-24P-PJD
VF-18N-PJD, VF-18P-PJD

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for future reference.

Summary of Contents for VF-18N-PJD

Page 1: ... any appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the ﬁre department Installation and service must be performed by a quali ﬁed installer service agency or the gas supplier VF 24N PJD VF 24P PJD VF 18N PJD VF 18P PJD UNVENTED VEN...

Page 2: ...en from the room in which it is installed Provi sions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ventilation section on page 5 of this manual This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indi cated on the rating...

Page 3: ...a to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manualcarefullyandcompletely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning DANGER Carbonmonoxide poisoning may lead to death CarbonMonoxidePoisoning Early signs of ...

Page 4: ...ture 10 Thisheaterneedsfresh outsideairventilationto runproperly Thisheaterhasanoxygendepletion sensing ODS pilot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation page 5 If heater keeps shutting off see Troubleshooting page 20 11 Do not run heater where ﬂammable liquids or vapors are used or stored under dusty conditions ...

Page 5: ...ignition and control This system requires no matches or other source to light log set AIR FOR COMBUSTION AND VENTILATION WARNING This heater shall not be installed in a conﬁned space or unusually tight con struction unless provisions are provided for adequate combus tion and ventilation air Read the following instructions to insure proper fresh air for this and other fuel burning appliances in you...

Page 6: ...ation grills between the rooms 1 Determine the volume of the space length x width x height Length x Width x Height __________cu ft volume of space Example Space size 20 ft length x 16 ft width x 8 ft ceiling height 2 560 cu ft volume of space If additional ventilation to adjoining room is supplied with grills or openings add the volume of these rooms to the total volume of the space 2 Multiply the...

Page 7: ...tion 3 Figure 2 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 Figure 2 Ventilation Air from Inside Building Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 Ventilation Grills Into Adjoining Room Option 1 12 12 Ventilation Air From Outdoors Provide extr...

Page 8: ...utage or sooting Use a heat resistant sealant Do not seal chimney ﬂue damper WARNING Never install the heater in a bedroom or bathroom in a recreational vehicle where curtains furniture cloth ing or other ﬂammable objects are less than 42 inches from the front top or sides of the heater in high trafﬁc areas in windy or drafty areas CAUTION This heater cre ates warm air currents These currents move...

Page 9: ...Log Front Rear Size Height Depth Width Width 18 17 14 24 20 24 17 14 28 22 MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size 18 or 24 Side Wall 16 Ceiling 42 Floor 5 Measured at 14 depth 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 informa tion below You must have noncombustible materia...

Page 10: ...ents for Distance A Safe Installation 12 or more Noncombustible material OK Between 8 24 Model Install ﬁre place hood accessory and 12 GA6060 see Accessories page 25 18 Model Noncombustible material OK Less than 8 Noncombustible material must be extended to at least 8 See Between 8 and 12 above If you cannot extend material you must operate heater with ﬂue damper open Figure 7 Minimum Mantel Clear...

Page 11: ...llowing operate the logs only with the ﬂue damper open raise the mantel to an accept able 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 INSTALLAT...

Page 12: ...onnection Purchase the optional CSA design certiﬁed equipment shutoff valve from your dealer See Accessories page 25 For propane LP units the installer must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pres sure heater regulator damage could occur In...

Page 13: ...ogged heater valves WARNING Use pipe joint sealant that is resistant to liquid petroleum LP gas Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 25 Minimum inlet pressure for purpose of input adjustment Figure 12 Gas Connection 3 Minimum CSA Design Certiﬁed Equipment Shutoff Valve With 1 8 NPT Tap Approved Flexible Gas Hose if allowed by loca...

Page 14: ...ing 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 Correct all leaks at once 6 Reconnect heater and equipment shutoff valve to gas supply Check reconnected ﬁt tings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Figure 13 2 Pressurize supply piping ...

Page 15: ... vent smell This will only last a few hours OPERATING HEATER Continued CAUTION A mild gas ﬂash within 10 seconds is normal during shutdown of this heater Remain clear of the hearth area for the entire shutdown process to avoid possible injury 1 STOP Read the safety information begin ning on page 14 2 Make sure equipment shutoff valve is fully open 3 Turn motor knob clockwise to the OFF position 4 ...

Page 16: ...ge the mode of operation in the following order MAN TEMP TEMP TIMER Manual ﬂame height adjustment MAN ap pears on display Press to turn on the ﬁre main burner or to increase ﬂame height Press to decrease ﬂame or to go down to pilot only The receiver acknowledges the transmission with an acoustic signal Thedaytimetemperaturemode TEMPap pearsondisplay Thesensorinthetransmitter measures room temperat...

Page 17: ...ee Figure 17 7 Push and hold down metal core fully by us ing a non sharp object such as a pen This lets the pilot gas ﬂow 8 Light pilot burner with a match see Figure 18 9 Continue holding down metal core forabout 10 seconds Pilot should stay lit after releas ing metal core If not repeat step 1 thru 4 10 Turn MAN knob to ON position This lets main gas ﬂow 11 Turn Motor knob to adjust ﬂame Knob has...

Page 18: ...flame is not touching the thermocouple When the thermocouple cools the heater will shut down If pilot ﬂame pattern is incorrect as shown in Figure 20 turn heater off see To Turn Off Gas to Appli ance above or page 17 see Troubleshooting page 20 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 OPERATING HEATER Continued The...

Page 19: ...I Your local computer store hardware store or home center may carry compressed air in a can You can use a vacuum cleaner in the blow position If using compressed air in a can please follow the direc tions on the can If you don t follow directions on the can you could damage the pilot assembly Before cleaning shut off the unit including the pilot Allow the unit to cool for at least thirty minutes Y...

Page 20: ...essure is too low 2 Burner oriﬁce s clogged OBSERVED PROBLEM When and are pressed atthesametime thereisnospark at ODS pilot When and arepressed there is spark at ODS pilot but no ignition Burner does not light after pilot is lit Delayed ignition burner REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 3 Replace ignitor cable 4 Replace pi...

Page 21: ...n and let warm up for a minute 2 Operate burner until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 9 4 Clean burner see Cleaning and Maintenance page 19 or replace burner oriﬁce 1 Turn heater off when using furniture polish wax carpet cleaners or similar products 1 Refer to Air for Combustion and Ventil...

Page 22: ...ot is partially clogged 4 Thermostat on remote is satisﬁed 1 Gas leak See Warning statement at top of page 2 Control valve or gas control defective 1 Foreign matter between con trol valve and burner 2 Gas leak See Warning statement at top of page REMEDY 1 Replace 9 volt batteries in receiver and remote control 2 Star 1 Thisiscommonwithmostheat ers Ifnoiseisexcessive contact qualiﬁed service person...

Page 23: ...als 0 8secondtone 0 2 second break during ignition 5 second continuous tone 5 short signals 8 2 second tone 0 2 second break IDENTIFYING ERROR SIGNALS FROM RECIEVER WIRING DIAGRAM SPARK SPARK Pilot 4 AA Batteries ON OFF Switch Thermocurrent Interrupter Block SW SW TC TC Battery Compartment MA GR MO SW PANEL Receiver Antenna Ignition Cable Thermocouple Thermocurrent Interrupter Block Combination Co...

Page 24: ...T PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they canʼt supply original replacement part s call DESAʼs Technical Service Department at 1 866 672 6040 When calling DESA have ready your name your address model and serial numbers of your appliance how appli...

Page 25: ... not supply these accessories call DESAat 1 866 672 6040 for referral information You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brass GA6053 For all models Helps deﬂect heat away from mantel or wall above ﬁreplace Fits ...

Page 26: ...www desatech com 111826 04A 26 ILLUSTRATED PARTS BREAKDOWN MODELS VF 18N PJD AND VF 18P PJD 1 2 24 24 24 24 24 24 24 24 7 8 9 10 11 12 11 13 14 15 16 17 18 3 6 4 19 20 21 22 23 5 ...

Page 27: ... 01 Rear Log Plate 1 14 112812 06 112812 06 Left Burner Bracket 1 15 111804 08 111804 08 Front Burner 1 16 112812 05 112812 05 Right Burner Bracket 1 17 116242 01 116242 01 Log Support Bracket 1 18 111817 06 111817 06 Front Flextube 1 19 104285 01 104286 01 ODS Pilot 1 20 098249 01 098249 01 ODS Nut 2 21 116329 02 116329 02 Front Log Bracket 1 22 111817 03 111817 03 3 16 Flextube 1 23 111828 01 11...

Page 28: ...www desatech com 111826 04A 28 ILLUSTRATED PARTS BREAKDOWN MODELS VF 24N PJD AND VF 24P PJD 1 2 3 6 4 25 25 25 25 25 25 7 8 9 10 11 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5 ...

Page 29: ... Left Burner Bracket 1 15 111804 05 111804 05 Front Burner 1 16 112812 05 112812 05 Right Burner Bracket 1 17 116331 01 116331 01 Right Ember Plate 1 18 111817 06 111817 06 Front Flextube 1 19 116680 04 116680 05 Pilot Bracket Kit 1 20 104285 01 104286 01 ODS Pilot 1 21 116337 01 NG Pilot Shield 1 22 116329 01 116329 01 Front Log Bracket 1 23 111817 03 111817 03 3 16 Flextube 1 24 111828 01 111828...

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Page 32: ...ed 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 cost labor transportation and any a...

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