Monessen Hearth MJ27NR manual

860024 MJ27 cov er 10/08 READ AND SA VE THESE INSTRUCTIONS Unvented Gas Log Heater or V ented Decorative Appliance Installation and Operating Instructions                              It uses air (oxygen) from the room ?[...]

2 86D0024 CONTENTS Important Safety Information   3 Getting Started  ?[...]

86D0024 3     9. The installation must conform with local codes or , in the absence of local codes, with the National Fuel    10. This unit complies with the latest revision of AN[...]

4 86D0024     continued from page 3 15. This is an unvented gas-red heater . It uses air (oxygen) from the room in which it is installed. Pro - visions for adequate combustion and ventilation air must be provided. See page 8. 16. Keep room area clear and free fro[...]

86D0024 5      Check your packing list to verify that all listed parts have been received. Y ou should have the following: • Unvented Gas Log Burner Assembly • T wo (2) Plastic Bags Containing Crushed V olcanic Rock • Installation[...]

6 86D0024   and   NA TURAL GAS NOTE: An external regulator is required to reduce supply pressure to a maxi- mum of 10 1 / 2 " W .C. on natural gas systems operating at higher pressure. MILLIVOL T Regulator Pressure Setting: 3.5" w .c. Pilot Regula[...]

86D0024 7 GENERAL INST ALLA TION INFORMA TION CODES Adhere to all local codes or , in their absence, the latest edition of THE NA TIONAL FUEL GAS CODE ANSI Z223.1 or NFP A54 which can be obtained from…  1430 Broadway Ne[...]

8 86D0024 FP2000 log clearances W H The following formula can be used to determine the maximum heater rating per the denition of unconned space: BTU / hr = (L1 + L2) Ft x (W) Ft x (H) Ft. x 1000 BTU / hr 50 Consider two connecting rooms with an open area between, with the following dimensions: L 1 = 15 1 / 2 Ft., L 2 = 12 Ft., W = 12 Ft., H =[...]

86D0024 9 19” 27” 14” 30” FP1994 Min. hearth dims  and HEARTH DIMENSIONS ?[...]

10 86D0024 X FP1995 logset in enclosure          ?[...]

86D0024 1 1 16" 42" FP1996 wall ceiling clearanc es FP1996 CLEARANCES and HEIGHT REQUIREMENTS Sidewall and ceiling clearances: The sides of the replace opening must be at least 16" from any combustible wall. The ceiling must be at least 42" from the top of the replace opening. Figure 4 - Sidewall and Ceiling Clearances Th [...]

12 86D0024 FP1997 heat resistant ma terial Heat Resistant Material Heater in Fireplace or Firebox FP1997 Measure This Distance Figure 5 - Measuring Heat Resistant Material Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection: T o install the gas logs into a replace with no wooden mantel, shelf or o[...]

86D0024 13 FP1998 heat resist mant el Hood Heater in Fireplace or Firebox 8" or More of Heat Resis- tant Materials FP1998 CLEARANCES and HEIGHT REQUIREMENTS Figure 6 - Measuring Heat Resistant Material for Mantel Heat resistant material (minimum requirements) with wooden mantel or other combustible projection: T o install the heater with a woo[...]

14 86D0024 CLEARANCES and HEIGHT REQUIREMENTS Figure 7 - Minimum Mantel Clearance with Hood - All Models Example: A mantel may project from the wall a maxi- mum of 2 1 / 2 " at a minimum of 8" above the opening, and a maximum of 6" at a minimum of 14 1 / 2 " above the opening. 10" 12" 8" 6" 2 1 /2 " 8&qu[...]

86D0024 15 FP2002 mantel clearanc es unsafe 2 1 / 2 " 8" 6" 7" 14 1 / 2 " 4" Mantel Minimum of 8" Heat Resistant Material Hood FP2002 Figure 9 - Minimum Mantel Clearance with Hood - MJ27 (Example of Unsafe Installation) CLEARANCES and HEIGHT REQUIREMENTS Figure 9 is an example of an unsafe mantel instal- lation. T[...]

16 86D0024 14" Minimum FP2004 min clear nocomb floor Heater in Fireplace or Firebox Combustible Material This Distance May Now be Less Than 1 3 / 8 " FP2004 FLOOR CLEARANCE The gas log heater must be installed at least 1 3 / 8 " above any combustible ooring material, such as carpeting or tile, which is closer than 14" to the [...]

86D0024 17 FP2005 damper install Damper Stop Damper FP2005   • T urn of f gas supply to replace or rebox. • Have the repla ce oor and chimney professi onally cleane d to remove ashes, soot, creosote or other obstru c - tions. Have this cl[...]

18 86D0024 FP2006 secure to floor          1. Center the gas log unit on the replace or rebox. Make certain[...]

86D0024 19 FP2007 gas connection FP2007 Pipe Coupling T o Heater V alve Gas Supply Inlet CONNECTING THE GAS NOTICE: A qualied gas appliance installer must connect the heater to the gas supply . Consult all local codes. IMPORT ANT : Hold heater valve rmly with a wrench to prevent movement when connecting to inlet pipe. Manual Shutoff V alve Pi[...]

20 86D0024 FP2008 gas valve FP2008  The heater gas inlet connection is a 3/8" NPT at the valve. On all control type units, the inlet connection is on the right side of unit. T o connect from the opposite side, route the pipe around the back portion of the unit. When tightening up t[...]

86D0024 21 FP2009 MJ wiring diagram FP2009 Motor ELECTRICAL WIRING (MILLIVOL T) The Millivolt valve is a self-powered combination gas control     -   Figure 16 - Wiring Diagram CAUTION   ?[...]

22 86D0024 ELECTRICAL WIRING (MILLIVOL T) CONNECTING REMOTE RECEIVER 1. Set remote receiver . See instructions included in receiver kit. 2. Connect the two (2) 1/4" female connectors to the TP/TH and TH terminals on the control valve. 3. C o n n e c t t h e f o u r - p i n connector from the valve mot or to the four -pi n con- nector on the re[...]

86D0024 23  Before installing logs, place rock- wool i n dim e size p iec es eve nly over small burner ports starting in front of the rear deector shield towards the front. Avoid placing rock wool over th e s lots on rear and right side of burner and on large yellow ame ports on front of burner [...]

24 86D0024  L G553 MJ127 log 8 10/08 Log #8 LG553 Figure 20 - Install Log #8 1. Place log #8 on right bracket next to valve by sliding grooves on sides of log into cutout on brackets. Figure 20 L G554 MJ127 log 1 10/08 Log #1 LG554 Figure 21 - Install Log #1 2. Pl ace log #1 by sett ing the log ov er the rear [...]

86D0024 25  L G546 MLDV log #4 Log #4 LG546 Figure 24 - Install Log #4 5. Place Log #4 by matching the rect- angular protrusion on the bottom of thi s log over the rec tang ula r not ch on log #3. Swing the log slightly to the front and set the log over the notch located on the upper surface of log #3. Figure [...]

26 86D0024  Place ickering bright embers (FBE-1G) after placing logs on burner . Pull apart into small strands and place on top of existing rock wool in front of and between front logs where they can be seen. T ry to avoid stacking these embers on top of each other . Use smalle[...]

86D0024 27 ANDIRON and ROCK INST ALLA TION ANDIRON INST ALLA TION 2, Andirons 2, Brackets 2, 2 1 / 4 Bolts Assembly Instructions 1. Afx bracket to andiron using 2 1 / 4 bolts. Figure 29 2. The andiron bracket clips over the lower horizontal grate bar . Figure 30 3. The left andiron goes to the left of the large knot on the front left log. The ri[...]

28 86D0024 FP2015 pilot flame wrong   Figure 31 - Correct Appearance of Pilot Flame Figure 32 - Incorrect Appearance of Pilot Flame Thermocouple for LP Thermocouple for Natural Flames from the pilot and burner should be visually checked as soon as the heater  In [...]

86D0024 29 L G551 MJ log flames LG551              should be observed: Figure 33 - Correct Burner Flame [...]

30 86D0024  This appliance is equipped with a piezo ignition device which lights the pilot. If piezo is not working properly see Match Lighting Instructions, Page 32.  BEFORE OPERA TING smell all around the appliance area for gas. Be sure to smell next to the oor because some gas is heavier than air and will settle on the oo[...]

86D0024 31 FP2017 pilot   1.  Read the safety information label. 2. Make sure the manual shutoff valve is fully open. 3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo ignitor does not light the pilot, refer [...]

32 86D0024   / CLEANING and SER VICING CLEANING AND SER VICING           ?[...]

86D0024 33 Note: All troubleshooting items are listed in order of operation. TROUBLESHOOTING W ARNING    REMEDY When ignitor button is pressed, there is no spark at ODS/pilot. 1. Ignitor electrode positioned wrong. 1 Replace ignitor . 2. Ignitor electrode is b[...]

34 86D0024 TROUBLESHOOTING If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and                [...]

86D0024 35 1 2 3 4 5 6 7 8 0024 MJ parts          1. Burner 1 86D0017 86D0018 2. Control V alve 1 20H2081 20H2082 3. ODS Pilot Assembly 1 14D0473 14D0473 4. Piezo Igniter 1 14D0503 14D0503 5. Piezo[...]

36 86D0024 8      1. Log #1 1 75D0536 2. Log #2 1 75D0537 3. Log #3 1 75D0538 4. Log #4 1 75D0539 5. Log #5 1 75D0540 6. Log #6 1 75D0541 7. Log #7 1 75D0542 8. Log #8 1 86D0019 LOGS   REPLACEMENT P ARTS[...]

86D0024 37 NOTE REGARDING VENTED PRODUCTS This product must be installed by a licensed plumber or gas tter when installed within the Commonwealth of Massachu - setts. Any residence with a direct vent product must have a CO detector installed in the residence. Installation of the replace or vented gas log in the State of Massachusetts requires[...]

38 86D0024 NOTES[...]

   LIFETIME W ARRANTY 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 W ARRANTY The following components ar[...]

OCTOBER 2008   MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www .mhsc.com[...]