B-vent series natural vent gas fireplace installation & operating instructions warning if the information in these instructions is not followed exactly, a fire or explo- sion may result causing property dam- age, personal injury or loss of life. — do not store or use gasolin...
62d4037 2 table of contents thank you and congratulations on your purchase of an mhsc fireplace please read the installation and operation instructions before using the appliance! Important: read all instructions and warnings carefully before starting installation. Failure to follow these instructio...
62d4037 3 important safety information installer please leave these instructions with the appliance. Owner please retain these instructions for future reference. W arning • read this owner’s manual carefully and completely before trying to assemble, operate, or service this fireplace. • any change to...
62d4037 4 14. Do not use any solid fuels (wood, coal, paper, card- board, etc.) in this fireplace. Use only the gas type indicated on rating plate. 15. This appliance, when installed, must be electrically grounded in accordance with local codes or in the absence of local codes, with the national elec...
62d4037 5 product features and code approval product specifications • this appliance has been certified for use with either natural or propane gas. See appropriate data plates. • this appliance is not for use with solid fuels. • the appliance must be installed in accordance with local codes if any. I...
62d4037 6 pre-installation information high elevations input ratings are shown in btu per hour and are certified without deration for elevations up to 4,500 feet (1,370 m) above sea level. For elevations above 4,500 feet (1,370 m) in usa, installation must be in accordance with the cur- rent ansi z22...
62d4037 7 fireplace framing firebox framing can be built before or after the appliance is set in place. Construct firebox framing fol- lowing figure 2 and the chart below for your specific installation requirements. Refer to page 8, figure 3 for firebox dimensions. The framing headers may rest on the t...
62d4037 8 pre-installation information fireplace dimensions 400bbv 31 ” 14 ” framing dimension 14” 1/2” or 5/8” drywall spacers 1/2” or 5/8” drywall spacers 8” 9 ” air kit 16 ” 7 ” electrical/gas access 2 ” 40” 40 ” framing dimension 21 ” 34” 6 ” b c d framing dimension ...
62d4037 9 pre-installation information fireplace dimensions 400sbv and 500sbv for easier installation on sbv400 and sbv500 units, place gas supply pipe 6” to 8” inside unit. Measure from the center of the gas knock-out hole lo- cated at the bottom of the left side. Note 400sbv 500sbv a 24¹³⁄₁₆” 30¹³...
62d4037 10 pre-installation information fireplace location plan for the installation of your appliance. This includes determining where the unit is to be installed, the vent configuration to be used, framing and finishing details, and whether any optional acces- sories (i.E. Wall switch, or remote con...
62d4037 11 clearances clearances to combustibles w arning follow these instructions carefully to ensure safe installation. Failure to follow instructions exactly can create a fire hazard. The appliance cannot be installed on a carpet, tile or other combustible material other than wood flooring. If ins...
62d4037 12 securing fireplace to floor or framing the fireplace must be secured to the floor and/or to framing studs as shown in figure 6. Use two (2) wood screws or masonry/concrete screws to secure fireplace to the floor. Use four (4) screws to attach fireplace to framing. The side brackets are adjusta...
62d4037 13 installation information finishing material note: any remote wiring (i.E. Remote control and wall switch) must be done prior to final fin- ishing to avoid costly reconstruction. W arning never obstruct or modify the air inlet. This may create a fire hazard. Only noncombustible materials (i.E...
62d4037 14 vent installation installation planning “b” vent pipe see venting installation instructions provided by the b-vent manufacturer. Note: this appliance must be installed using “b” vent type pipe that has been listed by a nationally recognized testing agency. Refer to b-vent pipe sizing char...
62d4037 15 vent installation firestop installation to position firestop refer to figures 9 and 10. Only one (1) firestop required per frame. Note: a firestop is not required at the roof. Notice nails firestop spacer joist fp2020 nails firestop spacer joist figure 9 - install fires...
62d4037 16 outside combustion air precautions and recommendations note: the use of outside air for combus- tion is optional unless required by build- ing codes. It is only necessary to supply outside combustion air to one side of fire- place. Use model oac4 combustion air kit (refer to page 17). 1. A...
62d4037 17 combustion air assembly model oac-4 combustion air assem- bly 1. Remove the cover plate from the 4” outlet opening location on the left outside of the fireplace. 2. Place starting collar (4”) into hole on left side of fireplace. Fireplace shortest side of air starting collar through fireplac...
62d4037 18 fireplace installation check gas type use proper gas type for the fireplace you are installing. If you have conflicting gas types, do not install fireplace. See dealer where you purchased the fireplace for proper fireplace for your gas type. Installing gas piping to fireplace location installa...
62d4037 19 fireplace installation w arning only persons licensed to work with gas piping may make the necessary gas connections to this appliance. Caution a manual shut-off valve must be installed upstream of the appliance. Union tee and plugged 1/8” npt pressure tapping point should be installed up...
62d4037 20 checking gas pressure 1. Check gas type. The gas supply must be the same as stated on the appliance’s rating decal. If the gas supply is different from the fireplace, stop! Do not install the appliance. Contact your dealer immediately. 2. To ease installation, a 30” (762 mm) flex line with ...
62d4037 21 electrical installation verify proper operation after servicing. Remote wall mounted switch a remote wall switch and up to fifteen (15) feet of 18 ga. Wire may be used with this appliance. Attach the wall switch in a junction box at the desired location on the wall. Figure 19. Do not exten...
62d4037 22 electrical installation electronic pilot ignition wiring w arning do not connect 110-120v ac to the re- mote wall switch. The appliance will malfunction or destroyed. figure 20 - electronic ignition system wiring diagram fp2027 remote wall switch po...
62d4037 23 final installation rock wool placement 1. Place rock wool on burner to provide glowing embers. For best results, pull the rock wool apart into pieces the size of a nickel or dime. 2. Distribute one layer of rock wool to cover the entire burner. Figure 21 3. Place the logs on the burner. R...
62d4037 24 operating instructions for your safety read before lighting w arning if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal in- jury or loss of life. A. This appliance is equipped with a pilot which must be lit with an ignitor whil...
62d4037 25 operating instructions lighting pilot for the first time lighting pilot w arning the control has an interlock device that does not allow the lighting of the fireplace up to the moment the safety device of the flame has not interrupted the gas flow. After that pe- riod of time (when the magne...
62d4037 26 operating instructions lighting burner lighting pilot t o l i p of f p il o t on figure 26 - pilot position main burner switch the “on/off” switch for the main burner can be found behind the door of the fireplace. This switch allows you to turn on and to turn off ...
62d4037 27 operating instructions for your safety read before lighting w arning if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal in- jury or loss of life. A. This appliance is equipped with an ignition device (piezo) which automatically...
62d4037 28 cleaning and maintenance w arning turn off gas before servicing fireplace. It is recommended that a qualified service technician perform these check-ups at the beginning of each heating season. Burner, pilot and control compartment keep the control compartment, logs and burner areas surroun...
62d4037 29 cleaning and maintenance vent system the fireplace and venting system should be inspected before initial use and at least annually by a quali- fied field service person. Inspect the external vent cap on a regular basis to make sure that no debris is interfering with the airflow. Inspect entir...
62d4037 30 illustrated parts list firebox components 4a 4b 4c 1 2 3 5 6 7.
62d4037 31 illustrated parts list firebox components item description qty. 400bbv 400sbv 500sbv 1. Pull screen panel 2 61d0001 61d0001 61d0003 2. Refractory side 2 n/a 61d0101 61d0101 3. Refractory back 1 n/a 61d0102 61d0102 4a. Left refractory 1 n/a 62d1015 62d2015 4b. Middle refractory 1 n/a 62d10...
62d4037 32 illustrated parts list standing pilot - millivolt control 1 2 3 4 5 6 7 8 10 12, 13 2t 2 i 2c 9 11 .
62d4037 33 illustrated parts list standing pilot - millivolt control item description qty. 400bbvnv 400bbvpv 400sbvnv 400sbvpv 500sbvnv 500sbvpv 1. Gas valve assembly 1 37d0117 37d0118 37d0117 37d0118 37d0117 37d0118 2. Pilot assembly 1 37d0018 37d0019 37d0018 37d0019 37d0018 37d0019 2c. Replacement...
62d4037 34 illustrated parts list electronic ignition 1 2 3 4 5 6 7 9 8 10 11 12 .
62d4037 35 illustrated parts list electronic ignition item description qty. 400bbvnv 400bbvpv 400sbvnv 400sbvpv 500sbvnv 500sbvpv 1. Gas valve assembly 1 37d0016 37d0017 37d0016 37d0017 37d0016 37d0017 2. Pilot assembly 1 37d0020 37d0021 37d0020 37d0021 37d0020 37d0021 3. Burner tube 1 62d4051 62d40...
62d4037 36 troubleshooting standing pilot ignition symptom 1. Spark igniter will not light pi- lot after repeat- ed triggering of piezo. 2. Pilot will not stay lit after carefully fol- lowing lighting instructions. 3. Pilot burning, valve knob tuned to “on”, switch is turned to “on” or “rs”, but bur...
62d4037 37 troubleshooting electronic ignition start 1. Turn gas supply off. 2. Turn on/off switch to “on” power to module (24v normal) yes is there a spark across ignitor sensor gap? Yes turn on gas. Does pilot burner light? Yes does spark stop when pilot is lit? Yes does main burner light? Yes doe...
62d4037 38 troubleshooting general troubleshooting symptom 1. Glass soots. 2. Poor draft due to venting. 3. Poor draft due to termination cap. 4. Poor draft due to ext. Environ- ment. 5. Poor draft due to internal envi- ronment. 6. Unit shuts down prematurely. Possible cause a. Flame impingement on ...
62d4037 39 massachusetts residents only: please read and follow these special requirements note regarding vented products this product must be installed by a licensed pluber or gas fitter when installed iwthin the common- wealth of massachusetts. Any residence with a direct vent product must have a c...
62d4037 40 special requirements continued 4. Inspection. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with th...
62d4037 41 notes.
62d4037 42 notes.
62d4037 43 limited lifetime warranty policy lifetime warranty the following components are warranted for life to the original owner, subject to proof of purchase; firebox, combus- tion chamber, heat exchanger, grate and stainless steel burners. Five year warranty the following components are warrant...
Mhsc 149 cleveland drive • paris, kentucky 40361 www.Mhsc.Com october 2008 62d4037 • rev. 10
