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AVFL Vent Free Fireplace System  

Installation & Operating Instructions

Models: AVFL42NTSC-SR

This is an unvented gas-fired heater. It uses air 

(oxygen) from the room in which it is installed. 

Provisions for adequate combustion and ventil-

ation air must be provided. Refer to 

Page 8.

 

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for future  

reference.

•  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.

  – Leave the building immediately.

  – 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 qualified installer, service agency or 

the gas supplier.

  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.

Monessen  •  AVFL42NTSC-SR Installation Instructions  •  4116-900 Rev. B  •  10/19

Summary of Contents for AVFL42NTSC-SR

Page 1: ...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 Leave the building immediately 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 qualified...

Page 2: ...n 12 Secure Fireplace to Framing 12 Finishing Material 12 Noncombustible Facing Installation 12 Connect the Gas 13 Check Gas Pressure 14 Electrical Installation 15 Wiring Junction Box 15 Signature Command Wiring Diagram 16 Final Installation 17 Bulb Installation 17 Installation of Air Deflection Glass 19 Glass Only Placement 19 Glass Optional Stone Kit Placement 19 Placement of Optional Logs 20 Op...

Page 3: ...________ ___________________________ Finishing Pg 10 12 Verified all clearances meet installation manual requirements Mantels and wall projections comply with installation manual requirements ___________________________ ___________________________ ___________________________ ___________________________ ___________________________ Manual bag and all of its contents are removed from inside under the...

Page 4: ...serviced as it may not be operating properly 10 The installation must conform with local codes or in the absence of local codes with the National Fuel Gas Code ANSI Z223 l NFPA54 11 This unit complies with ANSI Z21 11 2 Unvented Heaters latest edition 12 Do not install the heaters in a bathroom or bedroom 13 Correct installation of the ceramic fiber logs proper location of the heater and annual cl...

Page 5: ...ny pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa 24 Do not use this room heater if any part has been under water Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water 25 Never burn solid fuels in a fireplace where a unvented r...

Page 6: ... ORIFICE SIZE AVFL42 CONTROLS MODEL FUEL INPUT BTU h ORIFICE SIZE AVFL42NTSC SR NAT 24 500 50 NATURAL Inlet Minimum 5 0 w c Inlet Maximum 10 5 w c Regulator Pressure Setting 3 5 w c Pilot Regulator 3 5 w c FP3020 AVFL controls Control Board FP3020 Thermocouple Module Command Center AC Module Figure 1 AVFL42 Controls Control Access Door Shown Open ...

Page 7: ... 3 4 1 2 8 7 6 m m 6 8 1 5 1 6 1 7 5 1 m m 13 1 8 333 mm 13 1 2 343 mm Minimum Rough Depth 44 1118 mm Rough Opening Width 1 2 13 mm or 5 8 16 mm 43 1092 mm 37 1 2 953 mm 32 813 mm Minimum Rough Height 32 813 mm 28 711 mm 15 3 16 386 mm 13 1 2 343 mm 5467 AVFL dims 2 1 4 57 mm 4 5 8 118 mm 6 1 16 154 mm 39 3 4 1010 mm Figure 2 Fireplace and Framing Dimensions ...

Page 8: ...imensions page 7 Figure 2 illustration found in this manual NOTE Be sure all packing material has been removed from under the unit 2 Install following the instructions found in this manual 3 Field wire main power supply to junction box Refer to the Electrical Installation section page 15 Electrical connections should only be performed by an experi enced licensed certified service person 4 Plumb ga...

Page 9: ...sideration Clearance to side wall ceiling woodwork and window or other combustibles Refer to Clearance and Height Requirements section on Page 10 Minimum clear ances to combustibles must be maintained Location must not be affected by drafts caused by kitchen exhaust fans ceiling fans return air registers for forced air furnaces air conditioners windows or doors Installation must provide adequate v...

Page 10: ...fe installation Failure to follow instructions exactly can create a fire hazard Floor Clearance The fireplace may be installed directly on a combustible floor or a raised platform of an appropriate height Do not place fireplace on carpeting vinyl tile or other soft floor coverings It may however be placed on flat wood plywood particle board or other hard surfaces Be sure fireplace rests on a solid...

Page 11: ...model actual TV temperatures should be validated at the me of each installa on TVs should not be used in situa ons where the actual TV temperature exceeds the manufacturers maximum allowable opera ng temperatures iden ed in the TV s technical speci ca ons Contact the TV s manufacturer directly if you cannot locate this informa on or have ques ons regarding the informa on 3 Mantel height and depth ...

Page 12: ...ructed of combustible materials which do not protrude beyond the face NONCOMBUSTIBLE FACING INSTALLATION CAUTION The noncombustible wall board supplied with this unit can be damaged if dropped or struck Handle with care 1 Using drywall screws secure noncombustible board to the two brackets on top of unit IMPORTANT To avoid cracking the board pre drill holes prior to securing to the unit framing 2 ...

Page 13: ...sture and contaminants from passing through the pipe to appliance controls and burners Failure to do so could prevent the appliance from operating reliable Figure 7 IMPORTANT Loosen the pipe adapter on the flex tube before installing to the system piping When tightening the joint to the valve hold the valve securely to prevent movement Test all gas joints from the gas meter to the heater valve for...

Page 14: ...referred to below The valve regulator controls the burner pressure which should be checked at the pressure test point Turn captured screw counterclockwise two or three turns and then place tubing to pressure gauge over test point Use test point A closest to gas inlet After taking pressure reading be sure and turn captured screw clockwise firmly to reseal Do not over torque Check for gas leaks Figu...

Page 15: ...r CAUTION Electricalconnectionsshouldonlybeperformed by a qualified licensed electrician Main power supply must be turned off before connecting to the main electrical power supply or performing service WARNING Electrical Grounding Instructions This appliance is equipped with a three prong grounding plug for your protection against shock hazard and should be plugged directly into a properly grounde...

Page 16: ...r Ignitor Sparker Plug in Connector Control Board to Command Center OFF LO LED ON HI Master Switch Command Center Optional Wall Switch DC Power Green Ground Plug in Connector Control Board to Solenoid Gas In Gas Out Pilot Gas Tubing Valve Black Yellow Thermocouple Pilot Thermocouple Module Orange Red Plug in Connector A A C MODULE TO JUNCTION BOX IN FIREPLACE PLUG IN CONNECTOR A WHITE BLACK GREEN ...

Page 17: ...it plac ing them on a clean level surface NOTE The rear porcelain panel is held in place by the left and right panel and could fall forward if not supported during removal of the side panels CAUTION Turn OFF the main power supply before perform ing any service work on the unit including install ing or replacing light bulbs TOP LIGHT BULB INSTALLATION 1 Remove three screws holding light cover in pl...

Page 18: ...e rear hearth first with five screws that were removed earlier Figure 13 9 Reinstall the front hearth with nine screws removed earlier Figure 13 10 Place the rear porcelain panel back in place and reinstall the left and right side using same screws that were removed earlier 11 Re install the air deflection glass before proceeding to add decorative media next page FINAL INSTALLATION Nine Front Hear...

Page 19: ...unt of air the burner needs to burn cleanly This may cause sooting 1 Spread glass evenly in one layer over the entire floor and burner It is important to not have the glass too thick on ported area single layer only 2 Turn burner on and adjust glass over ported areas to achieve an even clean flame GLASS AND OPTIONAL STONE KIT PLACEMENT 1 For best results spread glass evenly over the entire floor a...

Page 20: ...ng of the logs is critical to the safe and clean operation of this heater Sooting and other problems may result if the logs are not properly and firmly positioned in the appliance Never add additional logs or embellishments such as pine cones vermiculite or rock wool to the heater Only use the logs supplied with the optional log kit AVFL42DLS Failure to position the parts in accordance with diagra...

Page 21: ...in the master switch Never use tools If the switch will not function by hand do not try to repair it Call a qualified service technician Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part of it has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas contr...

Page 22: ...u do not smell gas go to next step 4 Press the master switch to the ON position Within eight 8 seconds it will beep once This indicates the system is ready 5 Press ON button Sparker will spark and pilot flame will light 6 Once pilot flame is established the main burner flame will light automatically 7 If the pilot will not stay lit after several tries turn the master switch to OFF and call your se...

Page 23: ... To Install Batteries not included 1 Press down the battery door tabs and pull out to remove battery door 2 Install the batteries as indicated on Command Center 3 Close battery door by snapping in place 4 When the four 4 batteries are installed the system will operate without power 5 The batteries should be replaced when the LED indi cates low battery or at least once a year SYSTEM CONFIGURATION S...

Page 24: ...F receiver ON or two beeps for RF receiver OFF will be given as confirmation Refer to Figure 22 for location 2 After the RF receiver is on holding the OFF button on the Command Center while turning on the master switch will activate the learn function for the transmitter 3 After the above operation two beeps will be given and the green LED on the Command Center will flash for 10 seconds 4 During t...

Page 25: ...s before turning off The next time the fireplace is turned on all settings will resume To reset change to the desired settings and shut off by using the Memory Off commands and the system will be reset to those new settings NOTE After turning off there may be up to a two 2 minute delay before the burner can be relit There will be three 3 red flashes if the on button is pressed before the safety co...

Page 26: ... current flame height Off Low Medium and High flame height adjust ment not available on AVFL42NTSC SR Touch Area The touch area contains all touch buttons to control the transmitter It consists of two categories menus and ad justment arrows The blue LED backlight lights up for 8 seconds when any of the touch buttons is pressed The menus include TIMER THERMO LIGHT and AUX Logo Bar The Logo Bar cont...

Page 27: ... remote transmitter privacy code is preset in factory In the event of activation or interference from other nearby transmissions change the code using the following procedures learn function must be performed af ter changing the code 1 Press the ON arrow button and the TIMER button at the same time to enter privacy code setup models 2 The setup display is shown in the figure The four digits on the...

Page 28: ...counts down to zero 6 To exit Timer Mode a Push and hold the TIMER button for 3 seconds or b Use the OFF down buttons to decrease the Set Time to zero or c Slide down on the arrow buttons to exit TIMER mode and shut off the fireplace Thermostat Mode Figure 30 Press the THERMO button to set the transmitter in thermo stat mode The transmitter will automatically turn on the fire place when the room t...

Page 29: ...ut tons become flame height controller again 5 When the light button is flashing slide up and down on the arrow buttons will turn the light brightness to HIGH or Off directly without pressing the light button again to confirm AUX Control The AUX control function is used to turn on or turn off the auxiliary component connected to the AC module of the Signature Command System Press the AUX button to...

Page 30: ... 4 Low Temperature Condition When the ambient temperature is less than 40 de grees Fahrenheit the LCD will display LO and NO SIGNAL will be sent to turn on the appliance All functions still remain the same for both Manual Mode and Thermostat Mode 5 Child proof Protection The child proof icon will be shown when the child proof mode is activated by pressing the ON button and the OFF button at the sa...

Page 31: ...e batteries 3 LCD display shows funny display 3 Reset the transmitter see Resetting the Transmitter section 4 Appliance does not come on 2 The transmitter did not match 1 Make sure the transmitter has with the receiver learned to the receiver 3 Transmitter measures temp 1 Move transmitter to a cooler place erature exceeding 99 degrees and wait until temperature drops Fahrenheit and shows HI on bel...

Page 32: ...pilot flame If the pilot flame does not touch the thermocouple then the main burner cannot function reliably Refer to Figure 36 for incorrect shape of pilot flame CHECK BURNER FLAME APPEARANCE In normal operation at full rate after 15 minutes the flames should appear as shown in Figure 37 If logs are installed the flames should be yellow and should not impinge on the logs Figure 35 Correct Pilot F...

Page 33: ...nd accumulation of lint at air intake holes Verify flame pattern and log placement for proper operation Verify smooth and responsive ignition of main burner and rear burner Replace battery in remote control device Remove logs if installed handling carefully by holding gently at each end Gloves are recommended to prevent skin irritation from ceramic fibers If skin becomes irritated wash gently with...

Page 34: ...re the rear hearth in place and remove from unit Figure 41 8 Figure 42 shows bulb placement for front and rear light bars Insert bulbs in sockets 9 With twelve 15W bulbs installed in front and rear light bar reinstall the rear hearth first with five screws that were removed earlier Figure 41 10 Reinstall the front hearth with nine screws removed earlier Figure 41 11 Place the rear porcelain panel ...

Page 35: ...irectly into the fireplace Do not place a blower inside the burn area of the firebox Ceiling fans may create drafts that alter flame patterns Sooting and improper burning will result During manufacturing fabricating and shipping various components of this appliance are treated with certain oils films or bonding agents These chemicals are not harm ful but may produce annoying smoke and smells as th...

Page 36: ...d correct all leaks Control valve defective Replace control valve Burner does not light after ODS pilot is lit Burner orifice is clogged Burner orifice is clogged Burner orifice diameter is too small Burner orifice diameter is too small Inlet gas pressure is too low Inlet gas pressure is too low Burner backfires during combustion Manifold gas pressure is too low Contact local gas company Burner or...

Page 37: ... the surrounding metal Ground Check gas supply Go through Battery polarity wrong LED on the Command Center does not show solid green The 5 pin connector on the AC board broken or bent AC plug is plugged to AC mains Battery voltage low Using battery Check valve connections Check power supply go through A E Check grounding Go through B Go through C The sensor on the pilot is not in the flame pilot f...

Page 38: ...l directly to consumers Provide model number and serial number when requesting service parts from your dealer or distributor Stocked at Depot ITEM DESCRIPTION COMMENTS PART NUMBER 1 Eyebrow SRV4116 135 2 Screen Frame Assembly 20305693K Y 3 Panel Access Door 20305434K 4 Deflection Glass SRV20305432 Y 5 Porcelain Panel Rear 20305461 6 Porcelain Panel Left 20305462 7 Porcelain Panel Right 20305464 8 ...

Page 39: ... Date Active IMPORTANT THIS IS DATED INFORMATION Parts must be ordered from a dealer or distributor Hearth and Home Technologies does not sell directly to consumers Provide model number and serial number when requesting service parts from your dealer or distributor Stocked at Depot ITEM DESCRIPTION COMMENTS PART NUMBER 23 1 Log 1 20305703K 23 2 Log 2 20305704K Log Pin Qty 4 req 20306673K 23 2 23 1...

Page 40: ...K 12 Tube Tee to Valve Qty 2 req 20305454K Tube Tee to Injector 78D0090K Y Regulator Tube 20304913K Pilot Tube 20306010K Y 13 Gas Valve Assembly SRV4018 063 Y 14 Pilot Assembly SRV14D0473 Y Pilot Regulator SRV14D0469 Y 15 Control Box SRV80D0018 Y 16 Command Center SRV80D0005 Y 17 Injector Qty 2 req SRV57D0680 18 Venturi Qty 2 req 45D0600 19 Flexhose w Shutoff Valve SRV69D0030 Y 20 Remote Transmitt...

Page 41: ...s electronic components and glass X X X Factory installed blowers X Molded refractory panels X Ignition Modules X Firepots burnpots mechanical feeders auger assemblies X Vent Free burners Vent Free ceramic fiber logs Aluminized Burners X X Castings and Baffles 6 years 3 years X Catalyst limitations listed 7 years 3 years X X Manifold tubes HHT chimney and termination 10 years 1 year X Burners logs...

Page 42: ... in advance for any costs to you when arranging a warranty call Travel and shipping charges for parts are not covered by this warranty Limited Catalyst Warranty o For wood burning products containing a catalyst the catalyst will be warranted for a six year period as follows if the original o From 37 to 72 months a pro rated credit will be allowed against a replacement catalyst and labor credit nec...

Page 43: ...to the appliance or other components due to water or weather damage which is the result of but not limited LIMITATIONS OF LIABILITY have other rights which vary from state to state EXCEPT TO THE EXTENT PROVIDED BY LAW HHT MAKES NO EXPRESS WARRANTIES OTHER THAN THE WARRANTY SPECIFIED HEREIN THE DURATION OF ANY IMPLIED WARRANTY IS LIMITED TO DURATION OF THE EXPRESSED WARRANTY SPECIFIED ABOVE ...

Page 44: ...AVFL Vent Free Fireplace Monessen AVFL42NTSC SR Installation Instructions 4116 900 Rev B 10 19 Monessen a brand of Hearth Home Technologies 7571 215th Street West Lakeville MN 50044 www monessenhearth com ...

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