Monessen Hearth DIS33 Installation And 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  ventilation
air must be provided. Refer to page 9.

READ AND SAVE THESE INSTRUCTIONS

WARNINGS

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 supplier, call the

fire department.

– Installation and service must be performed by

a qualified installer, service agency or the gas
supplier.

MODEL: DIS33

Natural Gas or Propane/LPG

Control Type: Milli-Volt, T-Stat, or

Hi/Lo Remote Control

VENT-FREE FIREPLACE SYSTEMS

INSTALLATION AND OPERATING INSTRUCTIONS

WARNINGS

Summary of Contents for DIS33

Page 1: ...nd 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 supplier call the fire department Installation and service must be performed by ...

Page 2: ...ts 11 Fireplace Framing 14 Securing Heater to Floor 15 Connecting the Gas 16 Checking Gas Pressure 18 Electrical Wiring Milli Volt 19 Electrical Wiring Fan 21 Log Placement 22 Fame Appearance 23 Checking the Burner Flame 24 Operating Instructions 25 What to Do if You Smell Gas 25 Hi Lo Control Lighting Instructions 26 Milli Volt Control Lighting Instructions 27 Match Lighting Instructions 28 Clean...

Page 3: ...uctions carefully before installing or trying to operate this vent free gas heater IMPORTANT SAFETY INFORMATION 8 CARBON MONOXIDE POISONING Early signs of carbon monoxide poisoning are similar to the flu with headaches dizziness and or nausea If you have these signs obtain fresh air immediately Have the heater serviced as it may not be operating properly Continued on page 4 Any change to this heat...

Page 4: ...er 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 National Fuel Gas Code 21 The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa 22 The app...

Page 5: ...th OPERATION This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency Piezo Ignitor Fireplace Screen Control Knobs PRODUCT FEATURES Optional Face Plate Figure 1 Unvented Gas Heater with Control Access Door Open On Off Switch Optional Blower Optional T Stat Sensor ...

Page 6: ...at the valve PILOT Valve position to light maintain a standing pilot ON Valve position to turn ON HI LOW Variable position corresponding to desired flame height back to pilot Milli Volt and T Stat control has four 4 positions OFF All gas to the gas logs is shut off at the valve IGN Valve position to light maintain a standing pilot ON Valve position to turn ON OFF log set with remote switch thermos...

Page 7: ...e with Receiver Wall switch with 15 wire Wall T stat with 15 wire Hand held Thermostat Remote with Receiver Thermostat Sensor Handle the gas log burner assembly by the grate only Do not pick the unit up by the burners 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 ship...

Page 8: ...ign canopy with the holes in the top frame assembly See Figure 3 3 Install the five 5 screws in owner s manual packaging which attach the canopy to the top frame assembly See Figure 3 4 Tighten all screws Make sure the canopy is level and secure Install the fireplace screen Figure 3 Installing Canopy Do not operate the unit without the screen frame panel and canopy installed WARNING NOTE Fireplace...

Page 9: ... 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 outside ...

Page 10: ...lculation would be based only on the room with the heater BTU Hr 151 2 x 12 x 8 50 GENERAL INSTALLATION INFORMATION Figure 4 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 ad...

Page 11: ... base 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 The dimensions shown in Figures 5 and 8 and defined in the fireplace manufacturer s instructions are minimum clearances to maintain when installing this heater Left and right clearances are determined when facing the front of the...

Page 12: ...project from the wall a maximum of 21 2 at minimum of 8 above the opening and a maxi mum of 12 at a mini mum of 26 above the opening Figure 7 Measuring Heat Resistant Material for Mantel Figure 8 Minimum Mantel Clearance Figure 9 is an example of an unsafe mantel installation The mantel projects 4 at 8 above the opening exceeding the maximum acceptable distance of 21 2 The mantel also projects 8 a...

Page 13: ... combustible flooring material such as carpeting or tile which is closer than 14 to the base of the fireplace See to Figures 10 and 11 Figure 10 Minimum Clearance above Combustible Flooring Figure 11 Minimum Clearance above Combustible Flooring with Non combustible Material Installed at Base of Fireplace ...

Page 14: ...est 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 other hard surfaces Be sure fireplace rests on a solid continuous floor or platform with appropriate framing for su...

Page 15: ...two screws as shown in Figure 16 4 Lift grate and base assembly out of the firebox SECURING HEATER TO FLOOR Lift grate and base assembly using the grate only CAUTION 4 Secure the firebox with two anchoring screws 3 16 x 11 4 length supplied with the fireplace system See Figure 17 Note If the unit is mounted on carpeting tile or combustible material without the hearth a metal or wooden base coverin...

Page 16: ...ow rate 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 See Figure 19 CAUTION Manual Shutoff Valve Pipe Pipe Coupling Always use an external regulator for all propane L P G heaters and high pressure one to two pound sys...

Page 17: ... door Figure 1 page 5 If the gas supply is different DO NOT INSTALL the heater Contact your dealer for the correct model Connecting to the wrong gas type may result in property damage or personal injury CAUTION Connecting directly to an unregulated propane L P G tank can cause an explosion WARNING Figure 20 Access Holes Cord Protector Manual Gas Shutoff Recommended Outlet Positioned Vertical Stain...

Page 18: ...ked at the pressure test point Turn captured screw counter clockwise two or three turns and then place tubing to pressure gauge over test point Use test point OUT closest to control knob After taking pressure reading be sure and turn captured screw clockwise firmly to re seal Do not over torque Check for gas leaks Figure 21 Pressure Test Point Location Manual Control Figure 23 Pressure Test Point ...

Page 19: ... CONNECTING 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 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 See Figure 24 and install...

Page 20: ... 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 INSTRUCTIONS SUPERCEDE THE SECTION ENTITLED HEARTH MOUNT IN THE MILLI VOLT HAND HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE 1 Remove cover on control panel to show opening for remote receiver See Figure 25 ...

Page 21: ...tector IMPORTANT Always check local building codes The installation must comply with local regulations as well as the national electric codes This fireplace has a three prong grounded electrical plug This plug helps protect you against electrical shock Only connect plug to a properly grounded three prong receptacle Do not cut or remove the grounded prong from this plug WARNING Never attempt to ser...

Page 22: ...ositioning of the logs are 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 unit Failure to position the parts in accordance with diagrams below or t...

Page 23: ... correct pilot flame If the pilot flame does not touch the thermocouple then the main burner cannot function reliably See Figures 24 and 26 for incorrect shape of pilot flame THERMOSTAT MILLI VOLT AND HI LO CONTROL Figure 28 Correct Appearance of Pilot Flame Figure 29 Incorrect Appearance of Pilot Flame MANUAL CONTROL Figure 30 Correct Appearance of Pilot Flame Figure 31 Incorrect Appearance of Pi...

Page 24: ...ooting 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 harmful but may produce annoying smoke and smells as they are burned off during the initial operation of the appliance possibly causing headaches or eye or lung irritation This is a normal and tempor...

Page 25: ...as 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 this appliance if any part of it has been under water Im...

Page 26: ... The pilot is located on the left side of the heater behind the middle log and in front of the rear log If piezo ignitor does not light the pilot refer to Match Lighting Instructions page 28 8 Hold the gas control knob in for an additional 10 seconds to prevent the ODS pilot from shutting off the gas while the thermocouple is warming up 9 Release the gas control knob If the knob does not pop out w...

Page 27: ...o 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 10 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 o...

Page 28: ... of the piezo ignitor MATCH LIGHTING INSTRUCTIONS Figure 37 Location of Blower Control OPERATING INSTRUCTIONS AND BLOWER OPERATION Locate the blower control by opening control access door The variable controlled thermostat blower is located to the right of heater controls In the OFF postion the blower will not operate however the heater can be operated without the blower being ON In the ON AUTO po...

Page 29: ... soapy cloth ANNUAL CLEANING INSPECTION Refer to parts diagram for location of items discussed below Inspect and clean burner air intake holes Remove lint or particles with vacuum brush or pipe cleaners 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 Ver...

Page 30: ...or 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 2 to 3 hours of continuous use 1 Open window and or door for ...

Page 31: ...ssure too high 1 Power cord not plugged in 2 Loose wire connections 3 Defective blower thermostat 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 Replace thermocoupl...

Page 32: ...lure 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 ILLUSTRATED PARTS BREAKDOWN ...

Page 33: ... 23D7047 1 Control Door Assembly 23D6013K OPTIONAL FACE PLATE 8 1 33 x 43 Black Face Plate Kit DIFACESM 8 1 33 x 43 Jade Simulated Marble Face Plate Kit JADE 8 1 36 x 50 Black Face Plate Kit DIFACELG 9 1 Small Top Trim 23D2002 9 1 Large Top Trim 23D2006 10 1 Small Left Trim 23D2001 10 1 Large Left Trim 23D2005 11 1 Small Right Trim 23D2002 11 1 Large Right Trim 23D2006 OPTIONAL BLOWER COMPONENTS 1...

Page 34: ...USTRATED PARTS BREAKDOWN 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 ...

Page 35: ... burner Injector 1 44D0209 44D0211 Milli Volt Control 5 Control Valve 1 14D0467 14D0468 6 Front Burner Injector 1 44D0208 44D0210 7 ODS Pilot Assembly 1 26D2529 26D2530 8A Pilot On Off 1 14D0473 14D0477 Knob Extension 1 37D0010 37D0010 8B Hi Lo Knob Extension 1 37D0011 37D0011 9 Rear burner Injector 1 44D0209 44D0211 10 On Off Switch 1 32D0232 32D0232 Accessories Flex Connector Flexcon 30 All Mode...

Page 36: ... Log 1 44D1011 2 Middle Log 1 44D1010 3 Front Log 1 44D1012 4 Top Log 1 44D1013 ILLUSTRATED PARTS BREAKDOWN 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 ...

Page 37: ...26D3311 37 NOTES ...

Page 38: ...38 26D3311 NOTES ...

Page 39: ...26D3311 39 NOTES ...

Page 40: ... in accordance 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 th...

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Monessen Hearth DIS33, Installation And Operating Instructions Manual

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