Monessen Hearth VFF Installation & Operating Instructions Manual Download Page 1

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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.

VFF Vent Free Fireplace System

Installation & Operating Instructions

Models: VFF32LI, VFF36LI, VFF32LV, VFF36LV,

VFF32CI, VFF36CI, VFF32CV, VFF36CV

Monessen • VFF 32/36 Owner Manual • 20308184 • Rev F • 02/19

Summary of Contents for VFF

Page 1: ... 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 e...

Page 2: ...e 17 Lighting Pilot 17 Lighting Burner 18 To Turn Off Gas 18 Electrical Installation Ipi 19 Electrical Wiring 19 Optional Forced Air Kit BLOTMC 19 Junction Box Wiring 19 Wall Switch Installation 20 IPI System Wiring Diagram 20 Operating Instructions Ipi 21 Operation and Indications 21 For Your Safety Read Before Lighting 22 What to do if You Smell Gas 22 Operating Instructions 22 To Turn Off Gas t...

Page 3: ... pose a problem In houses of extremely tight construction additional mechanical ventilation is recommended 20 During manufacturing fabricating and shipping various components of this appliance are treated with certain oils films or bonding agents These chemicals are not harmful but may produce annoying smoke and smells as they are burned off during the initial operation of the appliance possibly c...

Page 4: ... 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 24 Never burn solid fuels in a fireplace where a unvented room heater is installed 25 Always have a fireplace screen in place when the appliance is in operation and unless other provisions for combustion air are provided the ...

Page 5: ...0 25 000 3 00mm VFF32LPV LP MILLIVOLT 36 000 28 000 49 VFF32LNI NAT IPI 37 000 25 000 3 00mm VFF32LPI LP IPI 36 000 28 000 49 VFF36CNV NAT MILLIVOLT 37 000 25 000 3 00mm VFF36CPV LP MILLIVOLT 36 000 28 000 49 VFF36CNI NAT IPI 37 000 25 000 3 00mm VFF36CPI LP IPI 36 000 28 000 49 VFF36LNV NAT MILLIVOLT 37 000 25 000 3 00mm VFF36LPV LP MILLIVOLT 36 000 28 000 49 VFF36LNI NAT IPI 37 000 25 000 3 00mm...

Page 6: ...eded is fuel savings However with no pilot burning in your fireplace units operating in colder climates may experience delayed start up or lock out Because colder air is heavier than milder air and there is no pilot burning to maintain a warm stable temperature in your firebox establishing a draft to aid ignition becomes difficult This is perfectly normal but can be somewhat frustrating To remedy ...

Page 7: ...F36 A 37 940 mm 41 1041 mm B 32 813 mm 36 914 mm C 341 2 876 mm 341 2 876 mm D 29 737 mm 32 813 mm E 213 4 553 mm 213 4 553 mm F 6 152 mm 6 152 mm G 57 16 138 mm 57 16 138 mm H 185 8 473 mm 205 8 524 mm I 21 2 64 mm 21 2 64 mm J 16 406 mm 18 457 mm K 131 4 337 mm 153 4 400 mm L 233 8 594 mm 273 8 695 mm M 297 8 759 mm 337 8 860 mm Framing Dimensions N 35 889 mm 35 889 mm O 371 4 946 mm 411 4 1048 ...

Page 8: ...NING Do not install the heater Where curtains furniture clothing or other flammable objects are less than 42 from the front of the heater In high traffic areas In windy or drafty areas WARNING If the area in which the heater is operated does not meet the required volume for indoor combustion air combustion and ventilation air shall be provided by one of the methods described in the National Fuel G...

Page 9: ...ty where gasoline or other flammable liquids may be stored The unvented fire box must be kept clear and free from the combustible materials FP2440 fireplace locations W H Counter Fireplace Unusually tight construction is defined as construction where a walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of 1 perm 6 x 1011 kg per pa sec m2 or le...

Page 10: ...back wall Floor Clearance The fireplace may be installed directly on a combustible floor or a raised platform of an appropri ate 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 continuous floor or platform with appropriate framing for support an...

Page 11: ...E FIREBOX IN PLACE Construct fireplace framing following Fireplace and Framing Dimensions The framing headers may rest directly on top of the firebox 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 ...

Page 12: ...te BTU hr Undue pressure loss will occur if the pipe is too small A manual shutoff valve must be installed upstream of the appliance Union tee and plugged 1 8 NPT pressure tapping point should be installed upstream of the appliance Figure 11 WARNING CHECK GAS TYPE The gas supply must be the same as stated on the heater s rating plate If the gas supply is different DO NOT INSTALL THE HEATER Contact...

Page 13: ...e over test point Turn unit to high Fig ure 14 After taking pressure reading be sure and turn captured screw clockwise firmly to reseal Do not over torque Check test points for gas leaks Figure 14 IPI Valve FP3034 IPI gas valve Pressure Inlet Pilot Adjust ment Screw Pressure Outlet FP3034 FINAL INSTALLATION REMOVE SCREEN NOTE Fireplace screen must be removed to access log box and to install canopy...

Page 14: ... of 18awg two conductor wire is to be used for wall switch or ther mostat installations NOTE Thermostats and switches must be suitable for millivolt operation CONNECT OPTIONAL WALL SWITCH OR THERMOSTAT 1 Use 18 awg two wire cable 15 feet maximum length 2 At one end of the cable connect both wires to the wall switch or thermostat At the other end connect one wire to TP TH and one wire to TH or conn...

Page 15: ...ward NOTE Do not place remote receiver in combustion chamber CHECK SYSTEM OPERATION The millivolt system and individual components may be checked with a millivolt meter having a 0 1000 mV range Conduct each check shown in chart below by connection meter test leads to terminals as indicated A COMPLETE MILLIVOLT SYSTEM CHECK A Reading Thermostat contacts CLOSED control knob ON main burner should tur...

Page 16: ...ry 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 control that has been under water FOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING PILOT FOR ...

Page 17: ... pilot does not stay lit repeat steps 1 and 2 LIGHTING PILOT Pilot Position Check for gas leaks in each of the following locations Pipe from the gas supply line connection to the gas valve Burner connections Field made joints gas shutoff valve Pilot Factory made joints Each joint or connection All joints on valve and control body LIGHTING PILOT FOR THE FIRST TIME WARNING NEVER use open flame to ch...

Page 18: ...econds for the burner to ignite MAIN BURNER SWITCH This switch allows you to turn on and to turn off the main burner without using the gas valve knob is in the ON position to light the main burner Depress and turn knob clockwise to OFF position TO TURN OFF GAS Off Position FP3033 wall switch PILOT O F F P I L O T ON FP1935 control knob pilot O F F P I L O T O N PILOT FP1937 control knob on Pilot P...

Page 19: ... with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 latest edition and Canadian Electrical Code CSA C22 1 FP1912 Junction box wiring 8 08 Junction Box Factory Supplied Not Supplied 120V AC 60Hz WARNING Do NOT connect to a 110V circuit JUNCTION BOX WIRING 1 This should be done before framing the fireplace Wire the receptacle into an electrical circuit W...

Page 20: ...upply or performing service Figure 21 IPI System Wiring Diagram IPI SYSTEM WIRING DIAGRAM ELECTRICAL INSTALLATION IPI WALL SWITCH INSTALLATION The wall switch wire connection is located off the wire harness coming out of the IPI Control Board The wire is labeled wall switch Connect the low voltage switch wires to the two 2 terminals labeled wall switch from the control board Run wire to desired lo...

Page 21: ...4 times Re ignite warning Red LED Flash 5 times Pilot valve voltage error Red LED Flash 6 times Main valve voltage error Red LED Flash 7 times Low battery Red LED 2 5 sec Flash once REMOTE FUNCTION OPERATION ICON Fireplace On Press the ON button on the transmitter Fireplace Off Press the OFF button 3 times or hold the OFF button 3 seconds for memory off Flame Height Up Press the ON button once to ...

Page 22: ...nician to inspect the appliance and to replace any part of the control system and any gas control that has been under water FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or loss of lie TO TURN OFF GAS TO APPLIANCE 1 Turn Wall Switch to OFF 2 Turn Master Switch to OFF 3 Turn off all...

Page 23: ...ock wool to the heater Only use the logs and 3G RW rock wool supplied with the unit Failure to position the parts in accordance with diagrams below or to use only parts specifically approved for this heater may result in property damage or personal injury B A Figure 23 Place Rock Wool ROCK WOOL PLACEMENT Before installing logs place rock wool in dime size pieces evenly over small burner ports star...

Page 24: ...t rear log 3 on pin located on rear support bracket and rest left side of log on front right log Figure 26 4 Place left rear log 4 on pin located on rear support bracket on left side Figure 27 Left Rear Log 4 Left Front Log 5 5 Place left front log 5 on left pin located on burner and left grate bar Rest top right portion of log on right front log Figure 28 Middle Left Log 6 6 Place top left log 6 ...

Page 25: ... only on the floor of the fireplace During initial operation of the new heater new burning logs and or rock wool will give off a paper burning smell and orange flames will be present Simply open the windows for a few hours to vent the odor CAUTION INSTALL 24 F R HIGHLAND OAK LOGS ON NATURAL BLAZE BURNER 1 Place the 1 log the chunk on the grate bar right side of the burner adjacent to the controls ...

Page 26: ...6 7 Place right top log 7 on right rear log 3 and right front log 2 using locators on the bottom of log 7 and locators on logs 2 and 3 Figure 36 8 Place small right front top log 8 on log 7 and log 2 using locating grooves on the bottom of log 8 and locating blocks on log 7 and log 2 Figure 37 PLACE THE DECORATIVE ROCK Optional volcanic rock may be placed around the unit on the floor of the firebo...

Page 27: ...h towards rear as far as possible LG1172 KW24 log 4 Log 4 Figure 41 LG1173 KW24 log 5 Log 5 6 Place center top log 6 on two 2 pins on top of log 2 The front end of log 6 should rest on log 4 4 Place bottom front left log 4 on left pin located on burner and left grate bar 5 Place center left log 5 on top of log 4 on left side with small end of log 5 under log 3 and on left grate bar LG1174a KW24 lo...

Page 28: ... 47 1 2 3 CAUTION Hot while in operation Do not touch Keep children clothing furniture gasoline and other liquids having flammable vapors away 4 Place the right log 4 on the bar located on the right side of the burner See Figure 48 1 2 4 3 CAUTION Hot while in operation Do not touch Keep children clothing furniture gasoline and other liquids having flammable vapors away 5 Place the top left log 5 ...

Page 29: ... Place front bottom left log 5 on left pin located on burner and left grate bar The right side of the log should rest on log 4 Figure 54 6 Place mid right log 6 on bottom rear log 1 and front bottom right log 4 by placing notch on bottom of log on locating block on log 1 Place front of log in notch of log 4 Figure 54 LG1068 Mon SC24R logs 5 6 Front Bottom Left Log 5 Mid Right Log 6 LG1069 Mon SC24...

Page 30: ...h on bottom of log onto locating block on log 8 Rest right end of log onto top of log 7 Figure 58 13 Place log 13 onto log 12 and top front right log 10 by placing notch on bottom of log onto locating block on log 12 Rest bottom of log onto log 10 and center log 9 Figure 59 GLASS ONLY PLACEMENT NOTE Two 2 bags of glass are supplied with the VFF32 fireplace and three 3 are supplied with the VFF36 f...

Page 31: ...l operation at full rate after 15 minutes the following flame appearances should be observed Burner will have a random pattern of yellow flames Figure 64 OPERATING INSTRUCTIONS Avoid any drafts that alter burner flame patterns Do not allow fans to blow directly into the fireplace Do not place a blower inside the burn area of the firebox Ceiling fans may create drafts that alter flame patterns Soot...

Page 32: ... 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 C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it Call a qualified service technician Force or attempted repair may result in a fire or explosion D Do not use t...

Page 33: ...onds to allow air to bleed out of the gas piping 7 With the control knob pushed in push in and release the piezo ignitor button to light the pilot 8 Continue pushing the control knob in for a further 60 seconds to prevent the flame detector from shut ting off the gas while the probe is warming up Release the control knob 9 Turn gas control knob counterclockwise to the ON position 10 After the pilo...

Page 34: ...e any items necessary for easy access to the pilot for example logs screens etc 2 Follow appropriate lighting instructions found previously Instead of pushing and releasing the piezo button light a match and hold the flame to the end of the pilot and ignite the pilot 3 After control knob has been released and pilot stays lit reinstall any items that were removed for pilot access 4 Call a qualified...

Page 35: ...s Inspect ODS pilot for operation and 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 CLEANING AND SERVICING PERIODIC CLEANING Refer to parts diagram for location of items discussed below Do not use cleaning fluid to clean logs or any part of heater Brush logs with soft bristle...

Page 36: ...REQUIRED Drill with 1 4 hex head or Phillips bit INSTRUCTIONS 1 Remove screen frame stones fireglass or logs if ap plicable per the VFF Installation and Operating In structions 2 Place rear ceramic firebrick panel against the center of the rear wall of the firebox Place on rear log support bracket 3 Place left and right ceramic firebrick panels against firebox sides and attach at the top with reta...

Page 37: ...e and re install screen frame Figure 68 Install Porcelain Panels INSTALLING OPTIONAL BLACK MAGIC PANELS NOTE Black Magic glass liner kits are approved for use with optional fireglass and log kits These kits are designed to fit VFF vent free fireplace systems Please verify the size and model number of your fireplace to be certain the kit you purchased is correct KIT CONTENTS One 1 Center panel One ...

Page 38: ... Appliance shuts off during use 1 Not enough fresh air is available for ODS pilot to operate 2 Low line pressure 3 ODS pilot is partially clogged 4 Defective Thermopile 5 Restrictions in incoming air flow 1 Open window and or door for ventilation 2 Contact local gas company 3 Clean ODS pilot 4 Check pilot flame check wire connections check output should be 325 millivolts across TH TP and TP Termin...

Page 39: ...ace burner orifice 2 Replace burner 3 Replace gas regulator Logs appear to smoke after initial operation 1 Vapors from paint or curing process of logs 2 Vapors or smoke continue after heater is run with damper or window open for several hours 1 Problem will stop after a few hours of operation Run the heater with the damper open if you have one or open a window for the first few hours 2 Log heater ...

Page 40: ...nections between switch and board Correct wiring if necessary No sound from valve indicating pilot solenoid opened Check wiring connections between valve and board Correct wiring if necessary No spark at pilot Inspect gray ignitor wire connection at board and pilot Reconnect wire if disconnected Replace ignitor wire if damaged Pilot doesn t light Check gas supply Check that ground wire has solid c...

Page 41: ...D 4 CENTER FIREBRICK OPTIONAL 1 20307900K CINNAMON 20307903K COLONIAL RED 20307855K CINNAMON 20307858K COLONIAL RED 5 RIGHT FIREBRICK OPTIONAL 1 20307902K CINNAMON 20307905K COLONIAL RED 20307857K CINNAMON 20307860K COLONIAL RED 6 BLOWER OPTIONAL 1 BLOTMC BLOTMC 7 ACCESS PANEL 1 20308200 20307282 N A OUTSIDE AIR KIT 1 AK4 AK4 N A LEFT PORCELAIN PANEL OPTIONAL 1 20307907K 20307862K N A CENTER PORCE...

Page 42: ...1 44D0500 44D0500 44D0500 44D0500 9 Male Valve Switch Wire 1 44D0501 44D0501 44D0501 44D0501 10 Knob Extender 1 5 Hi Low 1 37D0011 37D0011 37D0011 37D0011 11 Knob Extender 1 5 On Off 1 37D0010 37D0010 37D0010 37D0010 12 Front Grate Assembly 1 76D0004 76D0004 76D0004 76D0004 13 Rear Log Bracket 1 20302502K 20302502K 20302502K 20302502K ACCESSORIES Flex Connector FLEXCON18 Wall Switch Kit MVWS Hand ...

Page 43: ...100 95E0100 5 ODS Module 1 20303179 20303179 20303179 20303179 6 ODS Pilot Assembly 1 26D2529 14D0476 26D2529 14D0476 7 ODS Module Wire 1 20301890 20301890 20301890 20301890 8 Control to ODS Module Wire 1 95E0120 95E0120 95E0120 95E0120 9 A C Adapter 1 95E0105 95E0105 95E0105 95E0105 10 Burner Injector 1 20H3154 57D0612 20H3154 57D0612 11 Pilot Regulator 1 14D0469 N A 14D0469 N A 12 Piezo Wire 1 2...

Page 44: ...Right Rear Log 1 81D0068K 81D0092K 4 Left Rear Log 1 81D0069K 81D0093K 5 Left Front Log 1 81D0070K 81D0094K 6 Middle Left Log 1 81D0071K 81D0095K 7 Left Top Log 1 81D0072K 81D0096K 8 Right Top Log 1 81D0073K 81D0097K REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with t...

Page 45: ...eft Rear Log 1 81D0021K 81D0045K 5 Left Front Log 1 81D0022K 81D0046K 6 Left Top Log 1 81D0023K 81D0047K 7 Right Top Log 1 81D0024K 81D0048K 8 Right Front Log 1 81D0025K 81D0049K 2 3 4 5 6 7 8 1 BENEATH 7 REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this applianc...

Page 46: ... in property damage or personal injury Ref Description Qty BC18 R BC24 R BC30 R RW18 R RW24 R RW30 R 1 Rear log 1 1 20308895 20308748 20308917 20308931 20308754 20308901 2 Front left log 2 1 20308897 20308750 20308750 20308933 20308756 20308756 3 Front center log 3 1 20308896 20308749 20308918 20308932 20308755 20308902 4 Right log 4 1 20308752 20308752 20308921 20308758 20308758 20308905 5 Top le...

Page 47: ...Bottom rear right log 2 1 20305814 3 Bottom rear left log 3 1 20305815 4 Bottom front left log 4 1 20305816 5 Center left log 5 1 20305817 6 Center top log 6 1 20305818 7 Top right log 7 1 20305819 REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may r...

Page 48: ...id Right Log 6 1 20303573K 7 Mid Rear Log 7 1 20303574K 8 Mid Left Log 8 1 20303575K 9 Center Log 9 1 20303576K 10 Top Front Right Log 10 1 20303577K 11 Top Front Left Log 11 1 20303578K Enhancement Kit 1 SC2430EK 12 Log 12 1 20303579K 13 Log 13 1 20303580K 7 1 2 Ember Chunk 3 Ember Chunk 4 5 6 8 13 10 11 12 9 810107 Mon SC24R log parts Failure to position the parts in accordance with these diagra...

Page 49: ...dance with the installation instructions The Limited Lifetime Warranty will also be void if the appliance is not operated and maintained according to the operating instructions supplied with the appliance and does not extend to 1 firebox burner assembly damage by accident neglect misuse abuse alteration negligence of others including the installation thereof by unqualified installers 2 the costs o...

Page 50: ...Monessen a brand of Hearth Home Technologies 7571 215th Street West Lakeville MN 50044 www monessenhearth com ...

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