Monessen Hearth DFS32NVC Installation And Operating Instructions Manual Download | Manualshive

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71D0532

19

ELECTRICAL WIRING

The milli-volt valve is a self-powered combination gas control

THAT DOES NOT REQUIRE 110 VAC TO

OPERATE.

CONNECTING OPTIONAL WALL SWITCH

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 connect the wall switch/thermostat to the two male (0.25") terminals on the left side of
the unit. The color of the wires does not matter.

Figure 17 - Wiring Diagram

Optional Wall

Switch or Remote

Receiver

Switch

On/Off
Switch

On/Off
Switch

Wall

Switch

ODS

Pilot

Valve

TH = 3

TP = 1

TP/TH = 2

ODS

Pilot

Spade

Terminal

Label all wires prior to disconnection
when servicing controls. Wiring
errors can cause improper and
dangerous operation. Verify proper
operation after servicing.

W

ARNING

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Summary of Contents for DFS32NVC

Page 1: ...ly 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 Fo...

Page 2: ...the Gas 17 Checking Gas Pressure 18 Milli Volt Control 18 Electrical Wiring Milli Volt 19 Connecting Optional Wall Switch 19 Connecting Remote Receiver 20 Checking System Operation 20 Log Placement 21 Flame Appearance 25 Checking the Burner Flame 26 Operating Instructions 27 For Your Safety Read Before Lighting 27 Milli Volt Control Lighting Instructions 28 Match Lighting Instructions 29 Cleaning ...

Page 3: ...r IMPORTANT SAFETY INFORMATION 1 Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies 2 Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or clothing ignition 3 Young children should be carefully supervised when they are in the same room with the appliance 4 Do not place cloth...

Page 4: ...ide maximum ventilation by opening windows or doors to allow odors to dissipate Any odors remaining after this initial break in period will be slight and will disappear with continued use 20 Input ratings are shown in BTU per hour and are for elevations up to 2 000 feet For elevations above 2 000 feet input ratings should be reduced 4 percent for each 1 000 feet above sea level Refer to the Nation...

Page 5: ...or on the optional fireplace hearth OPERATION This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency This zero clearance unvented gas heater can be installed against or recessed into any wall that is accessible to a gas line Screen Control Knobs On Off Switch Piezo ...

Page 6: ...ressure to a maximum of 13 w c Milli Volt Pressure Regulator Pressure Setting 10 w c Gas Inlet Pressure Max 13 w c Min 11 w c Gas Rate Model Number Control Max BTU Hr Min BTU Hr DFS32NVC MILLI VOLT 38 000 26 000 DFS36NVC MILLI VOLT 38 000 26 000 DFS42NVC MILLI VOLT 38 000 26 000 Gas Rate Model Number Control Max BTU Hr Min BTU Hr DFS32PVC MILLI VOLT 34 000 26 000 DFS36PVC MILLI VOLT 34 000 26 000 ...

Page 7: ...sition to control flame height heat output Both front and rear burners are in operation to provide realistic glow and yellow flame PILOT The gas log heater is fitted with a specially designed safety pilot light ODS assembly which senses the amount of oxygen available in the room and shuts the gas log heater off if the oxygen level begins to drop below a satisfactory level The pilot can only be rel...

Page 8: ...ire Hand held thermostat remote with receiver Gloves are recommended when handling ceramic fiber logs to prevent skin irritation from loose fibers Logs are fragile handle with care WARNING Carefully inspect the contents for shipping damage If any parts are missing or damaged immediately inform the dealer from whom you purchased the appliance Do not attempt to install any part of the appliance unle...

Page 9: ...und in this manual The canopy MUST be installed for safe operation of the unit 3 Field wire main power supply to units with fan kit Refer to the Electrical Section found in this manual Electrical connections should only be performed by an experienced licensed certified tradesman 4 Install optional ON OFF kit on units with milli volt control Refer to installation instructions included with the kit ...

Page 10: ...an 50 cubic feet per 1 000 BTU per hour 4 8 m3 per kw of the aggregate input rating of all appliances installed in that space Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space UNUSUALLY TIGHT CONSTRUCTION IS DEFINED AS CONSTRUCTION WHERE a walls and ceilings exposed to the outsid...

Page 11: ...uld be based only on the room with the heater 151 2 x 12 x 8 50 GENERAL INSTALLATION INFORMATION Figure 3 Example of a Large Room with 1 2 Wall Divider Counter Fireplace x 1000 x 1000 52800 BTU Hr x 1000 29760 BTU Hr If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction provide adequate combustion a...

Page 12: ...vious section 2 Align the canopy with the holes in the top frame See Figure 5 3 Secure screws as shown See Figure 5 4 Install and tighten side screws Make sure the canopy is level and secure Install the fireplace screen Figure 4 Removing Fireplace Screen Frame Panel NOTE Fireplace screen must be removed to access log box and to install canopy Canopy Fireplace Screen Do not operate the unit without...

Page 13: ...d air furnaces air conditioners windows or doors Installation must provide adequate ventilation and combustion air DO NOT INSTALL THIS MODEL IN A BEDROOM OR BATHROOM Location should be out of high traffic areas and away from furniture and draperies due to heat from firebox Never obstruct the front opening of the unvented fireplace or restrict the flow of combustion and ventilation air Minimize mod...

Page 14: ...l or tile without the hearth or a minimum 22 GA 0 030 metal or a minimum 1 2 wooden base covering the entire width and depth of the base Combustible material must be installed at least one inch away from the front face of the unit Mantel clearances The canopy supplied with the unit must be installed If a combustible mantel is installed It must meet the clearance requirements shown in Figure 8 Figu...

Page 15: ...ard or other hard surfaces Be sure fireplace rests on a solid continuous floor or platform with appropriate framing for support and so that no cold air can enter from under the firebox Anchor fireplace to the side framing members using optional nailing flange kit See installation instructions included with the kit B A Figure 9 Corner Installation Figure 10 Inside Chase Installation Figure 12 Reces...

Page 16: ...ide framing members using 8d nails or other suitable fasteners Refer to Figure 14 5 The canopy must be installed for safe operation of the heater Refer to page 12 for canopy installation details When finishing a custom cabinet mantel or other built in enclosure the opening size to accommodate the fireplace with trim installed is as follows WARNING Figure 13 Custom Cabinet Figure 14 Location of Nai...

Page 17: ...hat the Pressure Tapping Point May Be Installed 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 your dealer for the correct model WARNING Use new black iron or steel pipe Internally tinned copper or copper tubing can be used per National Fuel Code section 2 6 3 providing gas meets hydrogen sulfid...

Page 18: ...tured screw clockwise firmly to re seal Do not over torque Check for gas leaks Figure 16 Pressure Test Point Location Milli Volt Control When tightening up 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 leaks using a gas analyzer or soap and water solution after completing connection DO NOT USE AN OPEN FLAME Check t...

Page 19: ...ect one wire to TP TH and one wire to TH or connect the wall switch thermostat to the two male 0 25 terminals on the left side of the unit The color of the wires does not matter Figure 17 Wiring Diagram Optional Wall Switch or Remote Receiver Switch On Off Switch On Off Switch Wall Switch ODS Pilot Valve TH 3 TP 1 TP TH 2 ODS Pilot Spade Terminal Label all wires prior to disconnection when servici...

Page 20: ...ETER TEST TEST LEADS TO CONTACTS READING TERMINALS SHOULD BE A COMPLETE 2 3 CLOSED CLOSED SYSTEM B THERMOPILE 1 2 OPEN OPEN OUTPUT CHECKING SYSTEM OPERATION The milli volt system and individual components may be checked with a milli volt meter having a 0 1000 mV range Conduct each check shown in chart below by connection meter test leads to terminals as indicated CONNECTING REMOTE RECEIVER THESE I...

Page 21: ...er 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 and EB 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 r...

Page 22: ...og 3 Left Base Log 3 Pins Figure 22 Installing Right Front Log 4 Right Front Log 4 Right Front Log 4 Pins 4 Place right front log 4 on two pins on bottom right side of grate See Figure 22 3 Place left base log 3 on two pins on left side of grate See Figure 21 ...

Page 23: ...ACEMENT Figure 23 Installing Left Top Log 5 Left Top Log 5 5 Place right end of left top log 5 on bottom center grate pin Place left end of left top log 5 on top of the left base log See Figure 23 Bottom Center Pin Pin ...

Page 24: ... burner surface in between the logs Do not add additional rock wool See Figure 26 for the ap proximate area to place rock wool Wash hands after placing rock wool Itching may occur Figure 26 Placing Rock Wool Dime Size Rock Wool WARNING Use only TPB RW provided with log set Do not add additional rock wool LOG PLACEMENT Figure 25 Installing Right Top Log 6 Right Top Log 6 Pins Right Base Log ...

Page 25: ...e heater is in operation It should just touch the top of the thermo couple tip for natural See Figure 27 for correct pilot flame If the pilot flame does not touch the thermocouple then the main burner cannot function reliably See Figure 28 for in correct shape of pilot flame MILLI VOLT CONTROL Figure 27 Correct Appearance of Pilot Flame Figure 28 Incorrect Appearance of Pilot Flame Thermocouple fo...

Page 26: ...served Figure 29 Correct Appearance of Rear Flames of Charred Timber Burner will have a random pattern of yellow flames as shown in Figure 29 There should be glowing embers on the front burner Note The front flames and embers will be an opaque orange color during the burn off time CHECKING THE BURNER FLAME ...

Page 27: ...ier 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 this appliance if any part of it has been under water Immediatel...

Page 28: ...f 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 shutting 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 pilot has been lit for one minute the...

Page 29: ...Failure to keep air intake holes clean will result in sooting and poor combustion Inspect and clean all burner ports 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 Turn off heater and allow to cool before cleaning Disconnect electrical power...

Page 30: ... prior to the installation of the unvented heater The electrical connections must be made before the firebox is framed and enclosed in the finished walls OPTIONAL TRIM Optional brass or pewter trim kits can be used in place of the factory supplied black trim OPTIONAL BRICK Optional Cottage Clay and Cottage Red firebrick kits can be installed Refer to installation instructions provided with kit Ele...

Page 31: ...with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury WARNING CHARRED TIMBER LOGS Item Description Qty 24 1 Rear Log 1 70D0031 2 Right Base Log 1 70D0032 3 Left Front Base Log 1 70D0033 4 Right Front Log 1 70D0037 5 Left Top Log 1 70D0065 6 Right Top Log 1 70D0034 ...

Page 32: ... 10 1 2 7 ILLUSTRATED PARTS BREAKDOWN Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury WARNING ...

Page 33: ...14D0473 14D0477 7 On Off Switch 1 32D0232 32D0232 8 Pilot Regulator 1 14D0469 9 Hi Lo Knob 1 37D0011 37D0011 10 Pilot On Off Knob 1 37D0010 37D0010 11 Control panel 1 54D0233 54D0233 Description Part Number Wall Thermostat Kit WT Remote On Off RCB RCM WMTD Thermostat Remote RCST RCT WWTD Remote Receiver Cover Ember RRCE Remote Receiver Cover Metal RRCM Remote Touch Light On Off TLM Remote Touch Li...

Page 34: ...REAKDOWN Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury WARNING 1 2 3 4 5 6 7 3 4 7 8 9 6 6 4 5 ...

Page 35: ...697 26D0699 7 Blower with Rheostat 1 BLOTMC BLOTMC BLOTMC Accessories 4 Curved Design Brass Trim 1 BRTK32C BRTK36C BRTK42C 4 Curved Design Pewter Trim 1 PWTK32C PWTK36C PWTK42C 4 Curved Design Black Trim 1 BLTK32C BLTK36C BLTK42C 4 Brass Trim Kit 1 BRMTK32C BRMTK36C BRMTK42C 4 Pewter Trim Kit 1 PWMTK32C PWMTK36C PWMTK42C 5 Cottage Red Firebrick 1 FB32CR FB36CR FB42CR 6 Outside Air Kit 1 AK 4 AK 4 ...

Page 36: ...nitor 2 Replace ignitor 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tubing 5 Replace ignitor cable 6 Replace piezo ignitor 1 Ventilate room Stop using odor causing products while heater is running 2 Locate and correct all leaks 3 Ventilate room and turn unit on high until odor is gone Odor should be gone after 6 hours of continuous use 1 Open window and or door for ve...

Page 37: ... gas line 3 Dirty or partially clogged burner orifices 1 LP regulator shut down due to inlet pressure too high REMEDY 1 Press in control knob fully 2 After ODS pilot lights keep control knob pressed in for 30 seconds 3 Fully open manual shutoff valve 4 Hand tighten thermocouple connection until snug then tighten 1 4 turn more 5a Contact local gas company 5b Clean pilot with vacuum cleaner 6 Replac...

Page 38: ... piece will be held in place by the side pieces See Figure 34 Figure 33 Figure 34 4 Loosely install four supplied screws into left and right sides of unit face Leave approximately 1 8th in of screw shaft protruding from unit in each location See Figure 35 5 Set left and right side piece of trim kit in place on unit Lean the top of each piece away from the unit and towards you in order to install t...

Page 39: ...eft and right corners Tilt trim kit away from you and into place snugly against unit Tighten screws installed in step 4 Figure 36 Figure 37 Figure 38 7 Secure the top trim piece to unit by installing supplied screws See Figure 39 8 Secure canopy back in place on unit Figure 39 ...

Page 40: ...garage space 5 Locate air supply inlet at least 3 away from any appliance vent terminal 6 Avoid extremely long runs and numerous turns in the duct leading from the fireplace to the combustion air assembly These conditions increase the resistance to the free flow of air through the duct See Figures 40 through 43 for methods of installing the outside air for combustion assemblies Figure 40 Basement ...

Page 41: ...ting collar with duct clamp or screws See Figure 45 DO NOT remove the cover if the outside air will not be connected WARNING Figure 44 Attaching Outside Air Starting Collar and Insulation Ring to Left Side of Fireplace Figure 45 Attaching Outside Duct to Starting Collar Insulation Ring AK 4 Starting Collar Sheet Meal Screws Left Side of Fireplace Shorter End of Air Starting Collar Air Starting Col...

Page 42: ...Note If the wall covering is brick or stone use appropriate masonry fasteners If necessary splice the duct Use a model 403 duct connector to splice duct sections INSTALLING MODEL 403 DUCT CONNECTOR 1 Push insulation back approximately 2 from the end of each duct 2 Slip each duct over duct connector until an equal length of connector extends into each duct 3 Place duck clamp over the end of each du...

Page 43: ...71D0532 43 NOTES ...

Page 44: ...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 of removal reins...

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