Vanguard Gas Log Heater Owner'S Operation Manual Download Page 1

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UNVENTED (VENT-FREE)

NATURAL GAS LOG HEATER

WARNING: If the information in this
manual is not followed 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 sup-

plier, call the fire department.

— Installation and service must be per-

formed 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 installa-
tion and operational procedures. For
assistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.

WARNING: This gas log set is for instal-
lation in a masonry solid fuel burning
fireplace, a U.L. listed manufactured
solid fuel burning fireplace or an AGA
design certified vent-free firebox listed
for use with these gas log models.

WARNING: This is an unvented gas-
fired heater. It uses air (oxygen) from
the room in which it is installed. Provi-
sions for adequate combustion and ven-
tilation air must be provided. Refer to
Air for Combustion and Ventilation sec-
tion in this manual.

18" and 24" Variable

Manually-Controlled Models

FLAME-MAX™

Vintage Oak

 Log Design

OWNER’S OPERATION AND INSTALLATION MANUAL

Models Also Designed Certified as Vented Decorative Appliances

This appliance may be installed in an aftermarket* manufactured (mobile) home, where

not prohibited by state or 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

®

Patent Pending

FLAME-MAX™

Golden Oak Log

Design

18", 24", and 30" Variable

Manually-Controlled Model

18", 24", and 30"  Variable

Manually-Controlled Model

 FLAME-MAX™

Birch

Log Design

®

Summary of Contents for Gas Log Heater

Page 1: ... serviceagency or the gas supplier WARNING This gas log set is for instal lation in a masonry solid fuel burning fireplace a U L listed manufactured solid fuel burning fireplace or an AGA design certified vent free firebox listed for use with these gas log models WARNING This is an unvented gas fired heater It uses air oxygen from the room in which it is installed Provi sionsforadequatecombustiona...

Page 2: ...gh altitudes Natural Gas Natural gas is odorless An odor making agent is added to the gas The odor helpsyoudetectagasleak However theodoraddedtothegascanfade Gasmaybepresent 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 heater Safety Information continues on next page Safety Informat...

Page 3: ...er appear to smoke turn off heater and call a qualified service person Note During initial operation slight smoking could occur due to log curing and heater burning manufacturing residues 9 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 ...

Page 4: ...rol Knob Back Log Base Assembly Piezo Ignitor Burner Crossover Log Front Log Flame Max Standard Oak Logs Flame Max Golden Oak Logs Flame Max Birch Logs Control Knob Piezo Ignitor One Piece Log Set One Piece Log Set Control Knob Piezo Ignitor Base Assembly Base Assembly ...

Page 5: ...n Sensor Shutoff System ODS The ODS pilot is a required feature for vent free room heaters The ODS pilot shuts off the heater if there is not enough fresh air Piezo Ignition System This heater has a piezo ignitor This system requires no matches batteries or other sources to light heater PRODUCT FEATURES Continued AIR FOR COMBUSTION AND VENTILATION WARNING This heater shall not be installed in a co...

Page 6: ...ied to areas such as joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines and at other openings If your home meets all of the three criteria above you must provide addi tional fresh air See Ventilation Air From Outdoors page 8 If your home does not meet all of the three criteria abo...

Page 7: ...ater ___________________ Btu Hr Gas fireplace logs ___________________ Btu Hr Other gas appliances ___________________ Btu Hr Total ___________________ Btu Hr Example Gas water heater 40 000 Btu Hr Vent free heater 31 500 Btu Hr Total 71 500 Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the...

Page 8: ... activate the power vent Figure 2 Ventilation Air from Inside Building Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic 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 Ventilation Air From Inside Building This fresh air would com...

Page 9: ...utdoorslocatedonfloororwall of fireplace If not drafting may cause pilot outage or sooting Use a heat resistant sealant Do not seal chimney flue damper CAUTION This heater creates warm air currents These currents move heat to wall surfaces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities in the air such as tobacco smoke exist may discolor ...

Page 10: ...d for use with these models Minimum Wall and Ceiling Clearances see Figure 4 A Clearances from the side of the fireplace opening to any combustible wall should not be less than 16 inches B Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches 42 16 Figure 4 Minimum Clearance to Wall and Ceiling Left and Right Sides LOG SIZING REQUIREMENTS Log Minimum Fir...

Page 11: ...tible material must extend at least 8 up for all models If non combus tible material is less than 12 you must install the fireplace hood accessory 24 and 30 models only See chart below and Figure 4 page 10 for minimum clearances IMPORTANT If you cannot meet these minimum clearances you must operate heater with chimney flue damper open Go to Installing Damper Clamp Accessory for Vented Operation pa...

Page 12: ...tion page 14 Figure 6 Minimum Mantel Clearances Without Using Hood If above minimum clearances are not met you must have a hood Follow minimum clearances shown in Figure 7 on page 13 when using hood Non Combustible Requirements for Material Distance A Safe Installation 12 or more Non combustible material OK Between 8 and 12 24 or 30 Models Install fireplace hood accessory GA6050 or GA6052 see Acce...

Page 13: ...ces Above Combustible Flooring If your installation does not meet the above minimum clearances you must operate the logs only with the flue damper open OR raise the mantel to an acceptable height OR remove the mantel Figure 7 Minimum Mantel Clearances When Using Hood Continued Minimum Non Combustible Material 8 Min 12 15 18 All minimum distances are in inches Log Sets 18 24 and 30 Models 20 2 1 2 ...

Page 14: ...peration Ifreasonsnumber1or2aboveapplytoyou youmustpermanentlyopenchimneyflue damper Youmustinstallthedamperclampaccessory toorder seeAccessories page 34 This will insure vented operation see Figure 10 The damper clamp will keep damper open Installation instructions are included with clamp accessory See chart below for minimum permanent flue opening you must provide Attach damperclampsotheminimump...

Page 15: ... provided with heater approved flexible gas hose not provided if allowed by local codes sealant resistant to LP gas not provided electric drill with 3 16 drill bit metal or masonry as applicable flatheaded screwdriver 1 Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulator Connect approved flexible gas hose to gas regulator of heater see Figure 11 page 1...

Page 16: ...wed by local codes Figure 11 Attaching Flexible Gas Hose to Heater Gas Regulator Figure 12 Attaching Base Assembly to Fireplace Floor Fitting Masonry Screw Bracket with Screw Holes Standard Oak Log Chassis Golden Oak and Birch Model Chassis Masonry Screw Bracket with Screw Holes ...

Page 17: ...to heater If pipe is too small undue loss of pressure will occur Installation must include a manual shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be up stream from heater see Figure 13 page 18 Apply pipe joint sealant lightly to male threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clo...

Page 18: ... joints Bubbles forming show a leak Correct all leaks at once WARNING ICON G 001 WARNING Test all gas piping and connections for leaks after installing or servicing Correct all leaks at once CHECKING GAS CONNECTIONS Pressure Testing Gas Supply Piping System Test Pressures In Excess Of 1 2 PSIG 1 Disconnect heater and its individual manual shutoff valve from gas supply piping system Pressures in ex...

Page 19: ... see Figure 14 2 Open main gas valve located on or near gas meter 3 Make sure control knob of heater is in the OFF position 4 Check all joints from manual shutoff valve to control valve see Figure 15 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater pages 22 through 24 Check all other internal joints for...

Page 20: ...g 1 Slide these pegs into the holes in the grate base behind the burner see Figure 16 2 Locate the notches on the back of the front log 2 Slide these notches over the tabs of the grate base see Figure 17 3 Locate the notches in the bottom of the crossover log 3 Place the crossover log on top of the back log and front log Make sure the notches of the crossover log line up with rectangular knobs on ...

Page 21: ...ction at bottom of log set is seated into U shaped cutout in center of chassis see Figure 19 Log will fit securely on chassis IMPORTANT Make sure log does not cover any burner parts 2 Place lava rock around base of heater Figure 19 Installing Golden Oak or Birch One Piece Log Set Figure 20 Installing Golden Oak or Birch One Piece Log Set Top View One Piece Log Set Burner One Piece Log Set Burner M...

Page 22: ...ance and to replace any part of the control system and any gas control which has been under water PILOT OFF LO HI Control Knob Ignitor Button Figure 21 Control Knob and Ignitor Button Location LIGHTING INSTRUCTIONS WARNING ICON G 001 WARNING If fireplace has glass doors never operate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will caus...

Page 23: ...u 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 This will allow air to bleed from the gas system 6 With control knob pressed in press and release ignitor button This will light pilot The pilot is attached to the burner If needed keep pressing ignitor button until pilot lights Note If pilot does not light...

Page 24: ...ol knob and light pilot with match 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow step 8 page 23 INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often PILOT FLAME PATTERN Figure 23 shows a correct pilot flame pattern Figure 24 shows an incorrect pilot flame pattern The incorrect pilot flame is not touching ...

Page 25: ...similar object to clean ODS pilot This can damage ODS pilot unit POSSIBLE CAUSE 1 Ignitor electrode not con nected to ignitor cable 2 Ignitor cable pinched or wet 3 Piezo ignitor nut is loose 4 Broken ignitor cable 5 Bad piezo ignitor 6 Ignitor electrode posi tioned wrong 7 Ignitor electrode broken REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor...

Page 26: ...more 7 Replace thermocouple 8 Replace control valve OBSERVED PROBLEM When ignitor button is pressed there is spark at ODS pilot but no ignition ODS pilot lights but flame goes out when control knob is released POSSIBLE CAUSE 1 Gas supply turned off or manual shutoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when insta...

Page 27: ...blem will stop after a few hours of opera tion 1 Turn control knob to LO position and let warm up for a minute 2 Operate burner until air is removed from line Have gas line checked by local natural gas company 3 Observe minimum installation clearances see pages 10 13 4 Clean burners see Cleaning and Mainte nance page 25 or replace burner orifice 1 Refer to Air for Com bustion and Ventilation requi...

Page 28: ... etc See IMPORTANT statement above 2 Gas leak See Warning statement at top of page 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warning statement at top of page 2 Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statement at top of page OBSERVED PROBLEM Heater produces a clicking ticking nois...

Page 29: ...urn the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply original replace ment part s call DESA International s Parts Department at 1 800 972 7879 for referral information When calling DESA International have ready model number of your heater the replacement part number REPLACEMENT PARTS SPECIFICATIONS Vintage Oak Vintage Oak 18...

Page 30: ...30 103515 ILLUSTRATED PARTS BREAKDOWN Flame Max Vintage Oak Log Models VYS18N and VYS24N 4 1 2 3 12 21 10 11 21 7 21 5 6 8 9 15 14 16 19 22 18 13 19 17 20 2 20 1 20 18 23 ...

Page 31: ...01 102773 01 Burner 1 13 102568 07 102568 07 Control Valve 1 14 098508 01 098508 01 Valve Retainer Nut 1 15 098354 01 098354 01 Control Knob 1 16 102445 01 102445 01 Piezo Ignitor 1 17 098249 01 098249 01 Nut M5 2 18 099387 08 099387 08 Pilot Tube 1 19 098271 07 098271 07 Ignitor Cable 1 20 103042 01 103042 01 ODS Pilot 1 20 1 098594 01 098594 01 Ignitor Electrode 1 20 2 098593 01 098593 01 Thermo...

Page 32: ...32 103515 ILLUSTRATED PARTS BREAKDOWN Flame Max Golden Oak and Birch Log Models VYD24N and VYBD24N 4 20 10 11 12 20 7 20 20 5 6 9 8 15 14 16 18 2 17 13 18 3 19 2 19 1 19 17 1A 1B ...

Page 33: ...02568 07 102568 07 102568 05 102568 05 102568 05 102568 05 Control Valve 1 14 098508 01 098508 01 098508 01 098508 01 098508 01 098508 01 Valve Retainer Nut 1 15 098354 01 098354 01 098354 01 098354 01 098354 01 098354 01 Control Knob 1 16 102445 01 102445 01 102445 01 102445 01 102445 01 102445 01 Piezo Ignitor 1 17 099387 08 099387 08 099387 08 099387 08 099387 08 099387 08 Pilot Tube 1 18 09827...

Page 34: ...der when additional rock is desired 3 lb bag DAMPER CLAMP GA6080 For manually controlled models Permanently opens chimney flue damper for vented operation MANUAL SHUTOFF VALVE GA5010 For all models Manual shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe BLACK FIREPLACE HOOD GA6050 For all models Helps deflect heat away from mantel or wall above fireplace Fits openings 28 to 48 wide BRASS FIREPLACE...

Page 35: ...__________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ___________________________...

Page 36: ...l such other costs related to repairing a defective heater will be the responsibility of the owner TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO THREE 3 YEARS ...

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