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June 2004 

P/N 26D3310 • Rev. 2s

MONESSEN HEARTH SYSTEMS 

LIMITED LIFETIME WARRANTY POLICY

The following components are warranted for life to the original owner, subject of proof of purchase: Firebox, 

Combustion Chamber, Heat Exchanger, Grate, and Stainless Steel Burners.

FIVE YEAR WARRANTY

The following components are warranted for 5 years to the original owner, subject of proof of purchase: Vent 

Free Ceramic Fiber Logs, Catalytic Filter and Aluminized Burners.

BASIC WARRANTY

Monessen Hearth Systems (MHS) warrants the components and materials in your gas appliance to be free from 

manufacturing and material defects for a period of two years from date of installation. After installation, if any of 

the components manufactured by MHS in the appliance are found to be defective in materials or workmanship, 

MHS will, at its option, replace or repair the defective components at no charge to the original owner. MHS 

will also pay for reasonable labor costs incurred in replacing or repairing such components for a period of 

two  years  from  the  date  of  installation. Any  products  presented  for  warranty  repair  must  be  accompanied 

by a dated proof of purchase.
This Limited Lifetime Warranty will be void if the appliance is not installed by a qualifi ed installer 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) 

fi rebox/burner assembly damage by accident, neglect, misuse, abuse, alteration, negligence of others, including 

the installation thereof by unqualifi ed installers, (2) the costs of removal, reinstallation or transportation of 

defective parts on the appliance, or (3) incidental or consequential damage. All service work must be performed 

by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability 

of  fi tness  for  purpose  and  of  all  other  obligations  or  liabilities.  Monessen  Hearth  Systems,  Inc.  does  not 

assume for it any other obligations or liability in connection with the sale or use of the appliance. In states 

that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect 

damage, those limitations of exclusions may not apply to you. You may also have additional rights not covered 

in this Limited Lifetime Warranty.
MHS reserves the right to investigate any and all claims against the Limited Lifetime Warranty and decide 

upon method of settlement.
For information about this warranty, contact:

Technical Services

 

Monessen Hearth Systems

 

149 Cleveland Drive

 

Paris, Kentucky 40361

Summary of Contents for DFS3224A

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 ammable vapors and liquids in the vicinity of this or any other applianc...

Page 2: ...ing 16 Connecting the Gas 18 Checking Gas Pressure 19 Manual Control 19 Hi Lo Remote Control 19 Milli Volt Control 19 Electrical Wiring Milli Volt 20 Connecting Optional Wall Switch or Thermostat 20 C...

Page 3: ...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 n...

Page 4: ...de 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 rati...

Page 5: ...or or on the optional replace hearth OPERATION This unvented gas heater requires no outside venting and burns cleanly with high heating ef ciency This zero clearance unvented gas heater can be install...

Page 6: ...LLI VOLT 28 000 18 000 DFS32NTA T STAT 28 000 18 000 DFS32NHA HI LO REMOTE 28 000 18 000 DFS3224NMA MANUAL 38 000 20 000 DFS3224NVA MILLI VOLT 38 000 25 000 DFS3224NTA T STAT 38 000 25 000 DFS3224NHA...

Page 7: ...t 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 remot...

Page 8: ...h 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 ber logs to prevent skin irritatio...

Page 9: ...ld 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 certi ed tradesman 4 Ins...

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 in...

Page 11: ...calculation would be based only on the room with the heater BTU Hr 15 BTU Hr 151 2 x 12 x 8 x 12 x 8 50 GENERAL INSTALLATION INFORMATION Figure 3 Example of a Large Room with 1 2 Wall Divider Counter...

Page 12: ...es in the top frame assembly See Figure 5 3 Install the three 3 screws in owner s manual packaging which attach the canopy to the top frame assembly See Figure 5 4 Tighten all screws Make sure the can...

Page 13: ...ly using the grate only 5 Secure the rebox with two anchoring screws 3 16 x 11 4 length supplied with the replace system See Figure 7 Note If the unit is mounted on carpeting tile or combustible mater...

Page 14: ...orced 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...

Page 15: ...ithout 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 Mantel clearances The canopy supplied with the unit must be installed If a...

Page 16: ...sts on a solid continuous oor or platform with appropriate framing for support and so that no cold air can enter from under the rebox Anchor replace to the side framing members using optional nailing...

Page 17: ...the opening size to accommodate the replace with trim installed is as follows WARNING Figure 15 Custom Cabinet Figure 16 Location of Nailing Flanges Nail Sides Through Nailing Flanges DFS32A DFS3224A...

Page 18: ...ions that 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 Con...

Page 19: ...tured screw clockwise rmly to re seal Do not over torque Check for gas leaks Figure 18 Pressure Test Point Location Manual Control Figure 20 Pressure Test Point Location Milli Volt Control When tighte...

Page 20: ...nnect 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 21 Wiring Dia...

Page 21: ...ERMOPILE 1 2 OPEN OPEN CHECK TO METER THERMOSTAT METER TEST TEST LEADS TO CONTACTS READING TERMINALS SHOULD BE A COMPLETE 2 3 CLOSED CLOSED B THERMOPILE 1 2 OPEN OPEN CHECKING SYSTEM OPERATION The mil...

Page 22: ...es to prevent skin irritation from ceramic bers After handling the logs wash your hands gently with soap and water to remove any traces of bers WARNING Figure 24 Installing Logs to Grate Models DFS324...

Page 23: ...orrect pilot ame If the pilot ame does not touch the thermocouple then the main burner cannot function reliably See Figures 26 and 28 for incorrect shape of pilot ame THERMOSTAT AND MILLI VOLT CONTROL...

Page 24: ...and improper burning will result During manufacturing fabricating and shipping various components of this appliance are treated with certain oils lms or bonding agents These chemicals are not harmful...

Page 25: ...er s instructions If you cannot reach your gas supplier call the re 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...

Page 26: ...the rst time it will be necessary to press in the control knob for 30 seconds to allow air to bleed out of the gas piping 7 With the control knob pushed in push and release the piezo ignitor button t...

Page 27: ...er 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 29 8 Hold the gas control knob in for an additional 10 seconds...

Page 28: ...button to light the pilot 8 Continue pushing the control knob in for a further 10 seconds to prevent the ame detector from shutting off the gas while the probe is warming up Release the control knob 9...

Page 29: ...ke holes Verify ame 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 ele...

Page 30: ...uvers may be installed in place of the factory installed black louvers Refer to installation instructions provided with the brass or chrome louvers BRASS TRIM Optional brass trim kits can be used with...

Page 31: ...ront Log 1 44D1003K 44D1008K 6 Top Log 1 44D1013K 44D1004K 44D1009K Item Description Qty DFS32 DFS3224 DFS42 DFS36 1 Back Log 1 44D1011K 44D1001K 44D1006K 2 Right Center Log 1 44D1022 44D1020 44D10224...

Page 32: ...11 10B 10A 12 10 ILLUSTRATED PARTS BREAKDOWN Failure to position the parts in accordance with these diagrams or failure to use only parts speci cally approved with this heater may result in property d...

Page 33: ...1 Rear burner Injector 1 44D0201 44D0203 44D0205 44D0207 44D0205 44D0207 44D0205 44D0207 11 Rear burner Injector 1 44D0201 44D0203 44D0205 44D0207 44D0205 44D0207 44D0205 44D0207 11 Rear burner Inject...

Page 34: ...4 7 8 9 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...

Page 35: ...1 CHTK32C CHTK32C CHTK36C CHTK42C 5 Curved Design Black Trim 1 BLTK32C BLTK32C BLTK36C BLTK42C 5 Curved Design Black Trim 1 BLTK32C BLTK32C BLTK36C BLTK42C 5 Curved Design Black Trim 1 BLTK32C BLTK32C...

Page 36: ...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 whil...

Page 37: ...gas line 3 Dirty or partially clogged burner ori ces 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...

Page 38: ...38 26D3310 NOTES...

Page 39: ...26D3310 39 NOTES...

Page 40: ...r 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...

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