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33D4051

LOG PLACEMENT

Before you begin 

— This unit is supplied with a set of three ceramic fiber logs. Do not handle these logs with your bare 

hands. Always wear gloves to prevent skin irritation from ceramic fibers. After handling logs, wash your hands gently with 

soap and water to remove any traces of fibers.

PROPER INSTALLATION SEQUENCE (24VFSC) 

See Figure 33. 

1.  Install the 

rear log (#3

) on back of burner.

2.  Install the 

right log (#1)

 on burner pins on right side of burner. 

3.  Install the 

left log (#2)

 on burner pins on left side of burner.

Figure 33 - Proper Sequence of Log Installation 

(24VFSC)

W

ARNING

The positioning of the logs is 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.

CAUTION

DO NOT sprinkle volcanic rock on the logs or around the pilot or the main burner. This 

may cause sooting. Only place volcanic rock on the floor of the fireplace.
During initial operation of the new heater, burning logs will give off a paper burning 

smell and orange flames will be present. Simply open the windows for a few hours to 

vent the odor.

W

ARNING

Failure to position the parts in accordance with 

these  diagrams  or  failure  to  use  only  parts 

specifically approved with this heater may result 

in property damage or personal injury.

Rear Log 

#3

Left Log 

#

Right Log 

#1

Burner Pins

Burner 

Pins

Содержание 24VFSC

Страница 1: ...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...

Страница 2: ...Safety Read Before Lighting 29 Manual Control Lighting Instructions 30 Thermostat Control Lighting Instructions 31 Milli Volt Control Lighting Instructions 32 Match Lighting Instructions 33 Cleaning...

Страница 3: ...s the appliance be located out of traffic and away from furniture and draperies 2 Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or...

Страница 4: ...allow odors to dissipate Any odors remaining after this initial break in period will be slight and will disappear with continued use 19 Input ratings are shown in BTU per hour and are for elevations...

Страница 5: ...optional fireplace hearth operation This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency This zero clearance unvented gas heater can be installed against...

Страница 6: ...shut off at the valve IGN Valve position to light maintain a standing pilot LOW HI Variable position corresponding to desired temperature Continued Model Number Type Gas Rate Number of Burners Max BT...

Страница 7: ...TARTED Carefully inspect the contents for shipping damage If any parts are missing or damaged immediately inform the dealer from whom you purchased the appliance Do not attempt to install any part of...

Страница 8: ...afe operation of the unit 3 Field wire main power supply to units with fan kit See the Electrical Section found in this manual Electrical connec tions should only be performed by an experienced licens...

Страница 9: ...construction is defined as construction where a walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of 1 perm 6 x 1011 kg per pa sec m2 or less wi...

Страница 10: ...ational Fuel Gas Code ANSI Z223 1 1992 Section 5 3 or applicable local codes The following formula can be used to determine the maximum heater rating per the definition of unconfined space BTU Hr L1 L...

Страница 11: ...Figure 14 page 14 and logs 4 Place rear firebrick panel on back wall of firebox Set bottom of panel behind the bracket tabs of the grate See Figure 4 5 Place one of the side firebrick panels in cabine...

Страница 12: ...elp secure the corners 4 Repeat for other side NOTE If you do not attach the trim at the correct corners use a hammer and screwdriver to tap on the one end of the 90 angle bracket This will separate t...

Страница 13: ...meet See Figure 10 4 Hold the corners together securely Tighten screws on bracket with flat head screwdriver Make sure the corners are flush and there are no spaces Do not over tighten screws See Figu...

Страница 14: ...with the holes in the top frame assembly See Figure 15 3 Install the three 3 screws in owner s manual packaging which attach the canopy to the top frame assembly See Figure 15 4 Tighten all screws Mak...

Страница 15: ...carton containing the four log set 3 To remove the grate and base assembly take out two 2 screws as shown in Figure 16 4 Lift grate and base assembly out of the firebox 5 Secure the firebox with two a...

Страница 16: ...or doors Installation must provide adequate ventilation and combustion air DO NOT INSTALL THE VFS MODEL IN A BEDROOM OR BATHROOM THE DBX MODEL MAY BE INSTALLED IN A BEDROOM BUT NOT IN A BATHROOM Loca...

Страница 17: ...ay be placed against a combustible back wall 4 Floor Clearance The fireplace may not be installed onto any combustible flooring material such as carpeting vinyl or tile without the hearth or a min 22...

Страница 18: ...e 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 b...

Страница 19: ...fasteners See Figure 26 5 The canopy must be installed for safe operation of the heater See page 14 for canopy installation details When finishing a custom cabinet mantel or other built in enclosure...

Страница 20: ...ap Pipe Nipple Cap Stainless Flexible Tube Figure 27 Gas Connection caution Use new black iron pipe steel pipe copper tubing or internally tinned copper tubing Internally tinned copper tubing can only...

Страница 21: ...Millivolt Control Figure 30 The valve regulator controls the burner pressure which should be checked at the pressure test point Turn captured screw counter clockwise two or three turns and then place...

Страница 22: ...all switch or thermostat At the other end connect one wire to TP TH and one wire to TH The color of the wires does not matter Optional Wall Switch Thermostat or Remote Receiver Switch On Off Switch On...

Страница 23: ...nection meter test leads to terminals as indicated A Complete Millivolt System Check A Reading Thermostat contacts CLOSED Control Knob ON Main burner should be come ON a If the reading is more than 10...

Страница 24: ...e 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...

Страница 25: ...See Figure 34 1 Install front right log 1 on two pins on right side of burner 2 Install left front log 2 on two pins on left side of burner 3 Install back log 3 on back of burner 4 Install right midd...

Страница 26: ...for correct pilot flame If the pilot flame does not touch the thermocouple then the main burner cannot function reliably See Figure 39 and 4 for incorrect shape of pilot flame Milli volt Control Figur...

Страница 27: ...C One piece Log Figure 41 Correct Appearance of Flames 24DBXC Dime Size Rock Wool Checking burner flame 24DBXC model In normal operation at full rate after 15 minutes the following flame appearances s...

Страница 28: ...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 temporary occur...

Страница 29: ...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 C Use only your hand to push in or turn the gas control...

Страница 30: ...s go to the next step 6 From OFF position push in gas control knob slightly and turn counterclockwise to the IGN posi tion See Figure 45 Push in and hold control knob for 5 seconds NOTE If you are run...

Страница 31: ...nob does not pop out when released stop and immediately call your service technician or gas supplier If the ODS pilot will not stay lit after several tries push and turn the control knob clockwise to...

Страница 32: ...sh in and release the piezo ignitor button to light the pilot 8 Continue pushing the control knob in for a further 60 seconds to prevent the flame detector from shutting off the gas while the probe is...

Страница 33: ...gs handling carefully by holding gently at each end Gloves are recommended to prevent skin irritation from ceramic fibers If skin becomes irritated wash gently with soap and water See manual for corre...

Страница 34: ...rebox installation The blower must be installed prior to the installation of the unvented heater The electrical connections must be made before the firebox is framed and enclosed in the finished walls...

Страница 35: ...ION QTY 24VFSC 24DBXC 32VFSC 1 Canopy 1 33D4000 33D4000 33D5000 2 Screen Assembly 1 33D4501 33D4501 33D5501 3 Left Firebrick Optional 1 33D4033 33D4033 33D5032 4 Center Firebrick Optional 1 33D4032 33...

Страница 36: ...4 6 illustrated parts breakdown 24VFSC MILLI VOLT 24VFSC MANUAL warning Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this ap...

Страница 37: ...0313 11V0313 11V0313 9 Regulator Valve Tube 5 16 33D4512 33D4512 10 ODS Pilot Valve Tube 3 16 1 49D0050 49D0050 49D0050 49D0050 11 Piezo Ignitor 1 14D0503 14D0503 14D0503 14D0503 12 Piezo Wire 1 00K06...

Страница 38: ...14 15 16 illustrated parts breakdown 32VFSC MILLI VOLT warning Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance m...

Страница 39: ...to Valve Tube 1 33D5511 33D5511 8 Tube Fitting 3 8 x 5 16 1 11V0313 11V0313 9 ODS Pilot Valve Tube 3 16 1 49D0050 49D0050 10 Piezo Ignitor 1 14D0503 14D0503 11 Piezo Wire 1 00K0632 00K0632 Log Set 12...

Страница 40: ...llustrated parts breakdown 24DBXC T STAT warning Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in pr...

Страница 41: ...ntrol Valve 1 11V0701 11V0701 6 Pressure Valve Regulator 1 24D0305 24D0306 7 Piezo Wire 1 00K0632 00K0632 8 Burner Valve Tube 1 4 1 33D4053 33D4053 9 Piezo Ignitor 1 18D0402 18D0402 Log Set 10 1 Front...

Страница 42: ...meter is too small 2 Burner orifice diameter is too small 3 Inlet gas pressure is too low 3 Inlet gas pressure is too low Burner backfires during combustion 1 Manifold pressure is too low 1 Contact lo...

Страница 43: ...e 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 burne...

Страница 44: ...August 2008 33D4051 Rev 2 MHSC 149 Cleveland Drive Paris Kentucky 40361 www mhsc com...

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