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www.desatech.com

113111-01D

3

SAFETY INFORMATION

 WARNING: This product con-

tains and/or generates chemicals 

known to the state of California 

to cause cancer or birth defects, 

or other reproductive harm.

IMPORTANT: Read this owner’s 

manual carefully and completely 

before  trying  to  assemble,  op-

erate, or service this fireplace. 

Improper  use  of  this  fireplace 

can cause serious injury or death 

from  burns,  fire,  explosion, 

electrical  shock,  and  carbon 

monoxide poisoning.

 DANGER: Carbon monoxide 

poisoning may lead to death!

Carbon Monoxide Poisoning:

 

Early signs of carbon 

monoxide poisoning resemble the flu, with head-

aches, dizziness, or nausea. If you have these signs, 

the fireplace may not be working properly. 

Get 

fresh air at once!

 Have fireplace serviced. Some 

people are more affected by carbon monoxide than 

others. These include pregnant women, people with 

heart or lung disease or anemia, those under the 

influence of alcohol, and those at high altitudes.

Natural and Propane/LP Gas:

 

Natural and propane/LP 

gases are odorless. An odor-making agent is added 

to these gases. The odor helps you detect a gas leak. 

However, the odor added to the gas can fade. Gas 

may be present even though no odor exists.
Make certain you read and understand all warnings. 

Keep this manual for reference. It is your guide to 

safe and proper operation of this fireplace.

  WARNING:  Any  change  to 

this  heater  or  its  controls  can 

be dangerous.

 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.

  WARNING:  Do  not  use  a 

blower  insert,  heat  exchanger 

insert,  or  other  accessory  not 

approved for use with this fire-

place. 

Due  to  high  temperatures,  the 

appliance should be located out 

of traffic and away from furniture 

and draperies.

Do not place clothing or other 

flammable  material  on  or  near 

the appliance. Never place any 

objects in the fireplace.

Fireplace  front  and  screen  be-

come very hot when running fire-

place. Keep children and adults 

away from hot surfaces to avoid 

burns or clothing ignition. Fire-

place will remain hot for a time 

after shutdown. Allow surfaces 

to cool before touching.

Carefully supervise young chil-

dren when they are in the room 

with fireplace.

You must operate this fireplace 

with  the  fireplace  screen  and 

hood  in  place.  Make  sure  fire-

place screen is in place before 

running fireplace.

Keep  the  appliance  area  clear 

and free from combustible ma-

terials, gasoline, and other flam-

mable vapors and liquids.

1.  This appliance is only for use with the type 

of gas indicated on the rating plate. This ap-

pliance is not convertible for use with other 

gases.

2.  Do not place propane/LP supply tank(s) in-

side any structure. Locate propane/LP supply 

tank(s) outdoors (propane/LP only).

Summary of Contents for Vanguard VMH26TNC

Page 1: ...SMELL GAS Do not try to light 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 MODELS VMH26TPC AND VMH26TN...

Page 2: ...e rating plate This appliance is not convert ible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer TABLE OF CONTENTS Safety Information 3 Local Codes 4 Product Identification 4 Product Features 5 Unpacking 5 Assembly 5 Air for Combustion and Ventilation 6 Installation 9 Operating Fireplace 19 Inspecting Burner 21 Cleaning and Maintenance 22 Tro...

Page 3: ...d proper operation of this fireplace WARNING Any change to this heater or its controls can be dangerous WARNING Donotallowfans toblowdirectlyintothefireplace Avoidanydraftsthatalterburner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting WARNING Do not use a blower insert heat exchanger insert or other accessory not approved for us...

Page 4: ...as an Oxygen Deple tion Sensing ODS safety shutoff system The ODS shuts down the fireplace if not enough fresh air is available See Air for Combustion and Ventilation page 6 If fireplace keeps shutting off see Troubleshooting page 23 11 Do not run fireplace where flammable liquids or vapors are used or stored under dusty conditions 12 Do not use this fireplace to cook food or burn paper or other object...

Page 5: ...ing damage If fireplace is damaged promptly inform dealer where you bought fireplace ASSEMBLY WARNING Always have branch support and screen in placebeforeoperatingfireplace Thispreventsexcessivetemper atures on fireplace surfaces WARNING Failuretoposition thepartsinaccordancewiththese diagrams or failure to use only parts specifically approved with this fireplace may result in prop erty damage or person...

Page 6: ... insulation and new construction methods help reduce heat loss in homes Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in During heating months home owners want their homes as airtight as possible While it is good to make your home energy effi cient your home needs to breathe Fresh air must enter your home All fuel burning appliances need fres...

Page 7: ...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 fireplace plus any adjoining rooms with doorless pas sageways or ventilation 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 ...

Page 8: ... connecting the two spaces see options 1 and 2 Figure 4 You can also remove door into adjoining room see option 3 Figure 4 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 AIR FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills ...

Page 9: ... mildew to form from too much moisture See Air for Combustion and Ventilation page 6 Note Your Vanguard fireplace is designed to be used in zero clearance installations Wall or framing material can be placed directly against any exterior surface of your fireplace except where standoff spacers are integrally attached If standoff spacers are attached to your fireplace these spacers can be placed direc...

Page 10: ...and depth of the fireplace CAUTION If you install the fireplace in a home garage fireplacepilotandburnermustbe at least 18 inches above floor locatefireplacewheremoving vehicle will not hit it For convenience and efficiency install fireplace where there is easy access for operation inspec tion and service in coldest part of room An optional blower kit is available from your dealer see Accessories page 3...

Page 11: ...connections 3 Install gas piping to fireplace location This installation includes an approved flexible gas line if allowed by local codes after the equip ment shutoff valve The flexible gas line must be the last item installed on the gas piping 4 If you have not assembled firebox follow instructions on page 4 5 Carefully set fireplace in front of rough opening with back of fireplace inside wall opening ...

Page 12: ...le locate outlet so cabinet mantel will cover it when installed see Figure 12 3 Place hearth base against wall at installation location Cut an access hole in hearth base to run gas line to fireplace see Figure 12 Make sure to locate access hole so cabinet mantel will cover it when installed Note You can secure base to floor using wood screws Countersink screw heads and putty over 4 Route flexible gas...

Page 13: ...n see Figure 16 page 14 2 Using short Phillips screwdriver remove the screw under the center of the branch support Rotate valve cover shield clockwise and slide out IMPORTANT Do not remove shoulder screw on the left side of valve cover shield Slide the valve cover shield off of the shoulder screw see Figure 16 page 14 Note If you do not have a short Phillips screwdriver the screen log set and bran...

Page 14: ... is in the ON position the fan will run until turned to OFF Reinstall upper louver assembly and hood if previously removed see Figure 15 page 13 Close lower louver door Installing Blower Assembly CAUTION Label all wires prior to disconnection when servicingcontrols Wiringerrors cancauseimproperanddanger ous operation CAUTION Verify proper op eration after servicing Note If you are using a mantel w...

Page 15: ...supplied will not be used in built in installations Pop in the plastic snap bushing found in hardware kit into the hole left by supply cord strain relief 4 A licensed electrician must follow the wiring diagram to connect incoming electrical supply to fan kit wiring harness see Figure 19 5 Plug power cord to the outlet receptacle not provided as shown in Figure 18 Wind the extra power cord and tie ...

Page 16: ...may be used in certain areas Check your local codes Use pipe of 1 2 or greater diameter to allow proper gas volume to fireplace If pipe is too small undue loss of volume will occur Installation must include a equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from fireplace see Figure 22 IMPORTANT Install equipment shutof...

Page 17: ...ce see Figure 23 3 Route flexible gas line included from fireplace control to equipment shutoff valve through side or rear access holes in outer casing NOTICE Most building codes do not permit concealed gas con nections A flexible gas line is provided to allow accessibility fromthefireplace seeFigure23 The flexible gas supply line con nectiontotheequipmentshutoff valve should be accessible CAUTION Avoi...

Page 18: ...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 a noncorrosive leak detection fluid to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Reconnect heater and equipment shutoff valve to gas supply Check reconnected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 ...

Page 19: ...ICE Duringinitialoperation of new fireplace burning logs will give off a paper burning smell Orange flame will also be present Open window to vent smell Operate fireplace on HI position to burn off odor This will only last a few hours 1 STOP Read the safety information starting in column 1 2 Make sure equipment shutoff valve is fully open 3 Turn control knob clockwise to the OFF position 4 Wait five 5...

Page 20: ... position 2 Turn off all electric power to the appliance if service is to be performed Shutting Off Burner Only pilot stays lit Turn control knob clockwise to the PILOT position THERMOSTAT CONTROL OPERATION The thermostatic control used on this fireplace differs from standard thermostats Standard ther mostats simply turn on and off the burner The thermostat used on this fireplace senses the room tem...

Page 21: ... pattern The incorrect pilot flame is not properly heating the thermocouple This will cause the thermocouple to cool When the thermocouple cools the fireplace will shut down If pilot flame pattern is incorrect as shown in Figure 33 turn fireplace off see To Turn Off Gas to Ap pliance page 20 see Troubleshooting page 23 Note The pilot flame on natural gas units will have a slight curve but flame should b...

Page 22: ...ow position If using com pressed air in a can please follow the directions on the can If you donʼt follow directions on the 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 holes on injector holder for dust and dirt see Figure 35 3 Blow air through the ports slots and hole...

Page 23: ...sition 4 Air in gas lines when in stalled 5 Depleted gas supply propane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 2 Reconnect ignitor cable 3 Replace ignitor cable 4 Replace piezo ignitor 5 Replace pilot assembly 6 Replace pilot assembly 1 Turn on gas supply or open equipment shutoff va...

Page 24: ... terlock system to reset Repeat ignition operation 4 Fully open equipment shutoff valve 5 Hand tighten until snug then tighten 1 4 turn more 6 A Contact local propane LP or natural gas company B Clean ODS pilot see Cleaning and Maintenance page 22 or replace ODS pilot assembly 7 Replace pilot assembly 8 Replace control valve 1 Clean burner see Cleaning and Maintenance page 22 or replace burner ori...

Page 25: ...nd let warm up for a minute 2 Operate burner until air is re moved from line Have gas line checked by local propane LP gas company 3 Observe minimum installa tion clearances see pages 9 through 12 4 Clean burner see Cleaning and Maintenance page 22 or replace burner orifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products 1 This is common with most fireplaces If...

Page 26: ...ally clogged 1 Gas leak See Warning statement above 2 Control valve defective 1 Foreign matter between con trol valve and burner 2 Gas leak See Warning statement above 1 Not enough combustion ven tilation air REMEDY 1 Ventilate room Stop using odor causing products while fireplace is running 2 Refill supply tank 3 Locate and correct all leaks see Checking Gas Connec tions page 18 1 Open window and o...

Page 27: ...at 1 866 672 6040 for referral information When calling DESA Heating Products have ready your name your address model and serial numbers of your fireplace how fireplace was malfunctioning type of gas used propane LP or natural gas purchase date Usually we will ask you to return the part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they canʼt supply original r...

Page 28: ...11 01D 28 ILLUSTRATED PARTS BREAKDOWN MODELS VMH26TPC SHOWN AND VMH26TNC 23 29 40 32 36 38 13 7 8 33 40 11 10 4 7 30 1 3 2 9 17 19 6 22 31 21 41 42 16 15 18 24 28 34 25 27 20 4 35 12 24 12 1 14 25 14 40 3 37 26 39 39 5 6 9 ...

Page 29: ...ator Screw 2 19 Outer Shell Base 1 20 102649 02 Branch Support 1 21 099415 09 Gas Regulator 1 099415 10 Gas Regulator 1 22 102875 01 Regulator Bracket 1 23 101381 01 Valve Cover and Piezo 1 24 099387 11 Pilot Tube 1 25 098271 06 Ignitor Cable 1 26 107186 01 Injector 1 107186 02 Injector 1 27 101006 02 Pilot Bracket 1 28 098249 01 Nut M5 2 29 098522 26 Gas Valve 1 098522 23 Gas Valve 1 30 102639 01...

Page 30: ...nal extruded louver Kit contains 2 louvers THERMOSTATICALLY CONTROLLED BLOWER KIT GA3450TA For all models Provides better heat distribution Makes fireplace more efficient Automatically turns off and on as needed CORNER MANTEL WITH FULL HEARTH BASE Not Shown GMC64FC Series Oak Finished GMC63UC Series Unfinished CS26CP Series 2 Tone Finish Black Lyptus GMC83FA Series Oak Finished Column Style CMA208F S...

Page 31: ...ent performance problems This kit gives you the tools and instruc tions to make it easy to clean all critical areas of your appliance INFORMATION VIDEO 108917 01 A care and maintenance video is available by calling 1 866 672 6040 You may also email your request to productsupport desaint com FIRE CRACKLE CF6 A Not Shown Creates the sound of a real burning fire ...

Page 32: ...used by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENTALLOWED BYTHE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WAR...

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