Monessen Hearth DFS42PVC Operations Instructions

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

10 71D0532GENERAL INSTALLATION INFORMATIONCODESAdhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI

71D0532 11WHWARNINGThe following formula can be used to determine the maximum heater rating per the definition of unconfined space:(L1 + L2) Ft x (W)

12 71D0532GENERAL INSTALLATION INFORMATIONREMOVING SCREENRemove fireplace screen frame panel by pushing screen frame panel up and out. See Figure 4.F

71D0532 13LOCATION OF FIREPLACECarefully select the best location for installation of your unvented fireplace. The following factors should be taken

14 71D05329"Minimum9"Minimum42" Minimum12"10"8"6"21/2"12"16"19"21"23"Combustible mat

71D0532 15HDGFACE1/2"or5/8"CAGCGAFIREPLACE FRAMING If unit is to be “built in,” fireplace framing can be built before or after the applianc

16 71D0532 DFS32NVC DFS36NVC DFS42NVC DFS32PVC DFS36PVC DFS42PVC K 37⅞" 41⅞" 47⅞" J 35⅞" 35⅞" 35⅞"FIREPLACE FRA

71D0532 17Pipe CouplingTo Heater ValveGas Supply Inlet CONNECTING THE GASNOTICE: A qualifi ed gas appliance installer must connect the heater to the g

18 71D0532CHECKING GAS PRESSUREMILLI-VOLT CONTROL (Figure 16)The valve regulator controls the burner pressure which should be checked at the pressure

71D0532 19ELECTRICAL WIRINGThe milli-volt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPERATE.CONNECTING OPTIONA

2 71D0532CONTENTSImportant Safety Information ... 3Product Features ...

20 71D0532ELECTRICAL WIRINGA. COMPLETE MILLI-VOLT SYSTEM CHECK (“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main burner shoul

71D0532 21LOG PLACEMENTFigure 19 - Installing Rear Log (#1)Before you begin — This unit is supplied with six (6) ceramic fiber logs. Do not handle th

22 71D0532LOG PLACEMENTFigure 21 - Installing Left Base Log (#3)Left Base Log (#3) Pins Figure 22 - Installing Right Front Log (#4)Right Front Log (#4

71D0532 23LOG PLACEMENTFigure 23 - Installing Left Top Log (#5)Left Top Log(#5)5. Place right end of left top log (#5) on bottom center grate pin. P

24 71D05327. Place right top log (#6) on two pins to the left of right base log. See Figure 25.PLACING ROCK WOOL After installing logs, place TPB-RW

71D0532 25FLAME APPEARANCEFlames from the pilot, front and rear burner should be visually checked as soon as the heater is installed.In addition, per

26 71D0532In normal operation at full rate after 15 minutes, the following fl ame appearances should be observed:Figure 29 - Correct Appearance of Rear

71D0532 27Figure 30 - Location of Piezo Ignitor, Control Knobs and Switch on Milli-Volt UnitA. This appliance is equipped with an ignition device wh

28 71D0532OPERATING INSTRUCTIONS 1. STOP! Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas l

71D0532 29OPERATING INSTRUCTIONS AND CLEANING AND SERVICING CLEANING AND SERVICINGAnnual inspection and cleaning by your dealer or qualifi ed service

71D0532 310. This unit complies with ANSI Z21.11.2 Unvented Heaters.11. Do not install the heaters in a bathroom or bedroom.12. Correct installati

30 71D0532CAUTIONBLOWER AND OTHER OPTIONAL EQUIPMENTOPTIONAL EQUIPMENTFORCED AIR KITIf you are installing the forced air kit, Model BLOTMC, see the i

71D0532 31#1#2#4#5#3#6REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. ILLUSTRATED PARTS BREAKDOWN Failure to position the parts in accordance

32 71D05325634811910127ILLUSTRATED PARTS BREAKDOWN Failure to position the parts in accordance with these diagrams or failure to use only parts speci

71D0532 33REPLACEMENT PARTS LISTREPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. BURNER ASSEMBLY Item QtyTPB24Natural Propane1 Piezo Ignitor 1

34 71D0532ILLUSTRATED PARTS BREAKDOWN Failure to position the parts in accordance with these diagrams or failure to use only parts specifically appro

71D0532 35REPLACEMENT PARTS LIST REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER. DFS32C DFS36C DFS42CItem Description Qty Standard F

36 71D0532OBSERVED PROBLEMWhen ignitor button is pressed, there is no spark at ODS/pilot.Appliance produces unwanted odors.Appliance shuts off during

71D0532 37OBSERVED PROBLEMODS/pilot lights, but flame goes out when control knob is released.Burner does not light after ODS/pilot is lit.Burner back

38 71D0532TRIM INSTALLATION1. Remove top and bottom louver assemblies by disengaging hooks. Pull assemblies up and away from unit. See Figure 33.2

71D0532 39TRIM INSTALLATION 6. Hold trim kit together by gripping the top left and right corners. Tilt trim kit away from you and into place snugl

4 71D0532IMPORTANT SAFETY INFORMATIONTHIS APPLIANCE MAY BE INSTALLED IN AN AFTERMAR-KET, PERMANENTLY LOCATED, MANUFACTURED (MOBILE) HOME, WHERE NOT P

40 71D0532MONESSEN HEARTH SYSTEMS LIMITED LIFETIME WARRANTY POLICYThe following components are warranted for life to the original owner, subject of p

71D0532 5PRODUCT FEATURES Figure 1 - Access to ControlsThis vent-free fireplace must be mounted on the floor or on the optional fireplace hearth.OPER

6 71D0532NATURAL GAS Milli-Volt Pressure Regulator Pressure Setting: 3.5" w.c.Pilot Regulator: 3.5" w.c. Gas Inlet Pressure: Max. 10 1/2&qu

71D0532 7SPECIFICATIONSIGNITION CONTROLS Piezo ignitor allows ignition of the pilot without the use of matches or batteries. Milli-Volt control has

8 71D0532MAKE SURE YOU HAVE RECEIVED ALL PARTS:Check your packing list to verify that all listed parts have been received. You should have the follow

71D0532 9GENERAL INSTALLATION INFORMATIONIn planning the installation for the fireplace it is necessary to determine where the unit is to be installe