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HVFL Unvented Gas Logs

3

59D1015

Problem

Possible Cause

Solution

W

ARNING

If the gas quality is bad, your pilot may not 
stay lit, the burners may produce soot and 
the heater may backfire when lit. If the gas 
quality or pressure is low, contact your local 
gas supplier immediately.

ODS/pilot lights, but flame 
goes out when control 
knob is released.

Burner does not light after 
ODS/pilot is lit.

Burner backfires during 
combustion.

Slight smoke or odor dur-
ing initial operation.

Logs appear to smoke 
after initial operation.

Heater produces a whis-
tling noise when burner is 
lit.

No gas to pilot.

1.  Control knob not fully pressed in.
.  Control knob not pressed in long 

enough.

3.  Manual shutoff valve not fully open.
4.  Thermocouple connection loose at 

control valve.

5.  Pilot flame not touching thermo-

couple, which allows thermocouple 
to cool, causing pilot flame to go out. 
This problem could be caused by 
either low gas pressure, or a dirty or 
partially clogged ODS/pilot.

6.  Thermocouple damaged.
7.  Control valve damaged.
1.  Burner orifice is clogged.
.  Burner orifice diameter is too small.
3.  Inlet gas pressure is too low.
1.  Manifold Pressure is too low.
.  Burner orifice is clogged.
1.  Burner orifice is clogged or dam-

aged.

.  Burner is damaged.
3.  Gas regulator is defective.
1.  Vapors from paint or curing process 

of logs.

1.  Turning control knob to HIGH posi-

tion when burner is cold.

.  Air in gas line.

3.  Dirty or partially clogged burner 

orifices.

1.  LP regulator shut down due to inlet 

pressure too high.

1.  Press in control knob fully.
.  After ODS/pilot lights, keep control knob 

pressed in for 30 seconds.

3.  Fully open manual shutoff valve.
4.  Hand tighten thermocouple connection 

until snug, then tighten 1/4 turn more.

5.  Contact local gas company.

6.  Replace thermocouple.
7.  Replace control valve.
1.  Clean burner or replace burner orifice.
.  Replace burner orifice.
3.  Contact qualified service person.
1.  Contact local gas company.
.  Clean burner or replace burner orifice.
1.  Clean burner or replace burner orifice.

.  Replace burner.
3.  Replace gas regulator.
1.  Problem will stop after a few hours 

of operation. Run the heater with the 
damper open if you have one, or open a 
window for the first few hours.

.  Log heater is intended to be smoke-

less. Turn OFF heater and call qualified 
service person.

1.  Turn control knob to LOW position and 

let warm up for a minute.

.  Operate burner until air is removed from 

line. Have gas line checked by local gas 
company.

3.  Clean burner or replace burner orifice.

1.  Verify LP tank regulator is installed and 

set at 11” to 13” w.c.

.  Replace regulator on heater.

TROUBLESHOOTING

Summary of Contents for HVFL18

Page 1: ...neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agen...

Page 2: ...ORE USING THE APPLIANCE IMPORTANT Read all instructions and warnings carefully before starting installation Failure to follow these instructions may result in a possible fire hazard and will void the...

Page 3: ...area of firebox Ceiling fans may create drafts that alter burner flame patterns Sooting and improper burning will occur 14 Caution Candles incense oil lamps etc produce combustion byproducts includin...

Page 4: ...er Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water 24 This appliance must not be...

Page 5: ...um of 13 0 w c for LP systems ignition controls Piezo ignitor allows ignition of the pilot without the use of matches or batteries Manual control has three 3 positions OFF All gas to the gas logs is s...

Page 6: ...t sensor 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 o...

Page 7: ...ealed b weather striping has been added on openable windows and doors and c caulking or sealants are applied to areas such as joints around window and door frames between sole plates and floors betwee...

Page 8: ...cs of the fireplace which in turn can cause the unit to overheat and malfunction WARNING Important information for the installation of this gas log set The following are guidelines for placing a gas l...

Page 9: ...logs into a fireplace with no wooden mantel shelf or other combustible projection above the fireplace opening measure the heat resistant material height per Figure 5 then see TABLE A Heat resistant ma...

Page 10: ...ast 12 and observe material to at least 12 profiles shown on Page 15 and observe profiles Fig 7 shown on Page 16 Fig 9 Less than 8 Extend heat resistant mat l Extend heat resistant to at least 8 insta...

Page 11: ...mum acceptable distance of 6 If your mantel profile is unsafe you may either Raise the mantel to an acceptable height or Remove the mantel 1 6 Minimum FP2801 combustible floor Heater in Fireplace or F...

Page 12: ...sote or other obstructions Have this cleaning performed annually after installation Seal any fresh air vents or ash clean out doors located on floor or wall of fireplace If not drafting may cause pilo...

Page 13: ...used per National Fuel Code section 2 6 3 providing gas meets hydrogen sulfide limits and where permitted by local codes Gas piping system must be sized to provide minimum inlet pressure Listed on Da...

Page 14: ...ulator is preset and locked to dis courage tampering If the pressure is not as specified replace the regulator with the correct part from the parts list in this manual Remove 1 8 NPT plug located on s...

Page 15: ...s can cause improper and dangerous operation Verify proper operation after servicing WARNING The milli volt valve is a self powered combination gas control that does not require 110 Vac to oper ate Co...

Page 16: ...ry life You can protect the receiver and extend battery life by mounting the receiver in a wall or other location outside the fireplace FP2804 remote receiver Remote Wire Con nectors Remote Receiver F...

Page 17: ...two 2 0 250 male spade terminals for remote or t stat option Figures 22 and 23 7 Install knob to shaft of t stat sensor Figure 22 8 Place thermo bulb in front of the firebox for incoming air HIGH LOW...

Page 18: ...millivolt meter hav ing a 1 1000 mV range Conduct each check shown in chart by connecting meter test leads to terminals as indicated A Complete Millivolt System Check A Reading Thermostat contacts CLO...

Page 19: ...o not handle these logs with your bare hands Always wear gloves to prevent skin irritation from ceramic fibers After handling the logs wash your hands gently with soap and water to remove any traces o...

Page 20: ...uster Figure 27 Left Log Cluster 2 Pin LG943 2 Place left log cluster 2 on pin located near left edge of base Figure 27 LG944 HVFL right log cluster Figure 28 Right Log Cluster 3 Pins LG944 3 Place ri...

Page 21: ...st end of top center log 4 on rear log Place front end of top center log where right and left cluster logs meet Figure 29 PLACE split maple logs on grate 1 Place back log 1 on two pins 2 located near...

Page 22: ...de of base Figure 31 3 Place left bottom log 3 on pin located on right side of base Figure 32 LG947 HVFL SM left bottom log Figure 32 Left Bottom Log 3 Pin LG947 LG947 HVFL SM top center log Figure 33...

Page 23: ...ure 34 6 Place left to middle log 7 on left end of back log and left bottom log Figure 34 LG950 HVFL SM right left front Left Front Log 8 Right Rear to Mid dle Log 6 LG950 Figure 35 7 Position back en...

Page 24: ...present when the heater is in operation It should just touch the top of the thermocouple tip for natural Refer to Figure 36 for correct pilot flame If the pilot flame does not touch the thermocouple t...

Page 25: ...earance Figure 38 Kentucky Stack Correct Rear Flame Appearance Figure 39 Split Maple Correct Rear Flame Appearance LG951 LG952 The left and right rear flames should be yellow and extend 1 2 above the...

Page 26: ...e chemicals are not harmful but may produce annoy ing 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...

Page 27: ...reach your gas supplier call the fire 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 don t try to repair it Call a...

Page 28: ...release the piezo ignitor button to light the ODS pilot The pilot is located on the left side of the heater behind the middle log and in front of the back log If piezo ignitor does not light the pilo...

Page 29: ...r 5 seconds 7 With the control knob pushed in push 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 detec...

Page 30: ...diagram for location of items discussed below Do not use cleaning fluid to clean logs or any part of heater Brush logs with soft bristle brush or vacuum with brush attachment Vacuum loose particles a...

Page 31: ...utoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when installed 5 ODS pilot is clogged 6 Gas regulator setting is not co...

Page 32: ...clogged or dam aged 2 Burner is damaged 3 Gas regulator is defective 1 Vapors from paint or curing process of logs 1 Turning control knob to HIGH posi tion when burner is cold 2 Air in gas line 3 Dir...

Page 33: ...2 5 Manual 6 10 11 11 3 4 13 9 5 Millivolt 12 591015 HVFL parts WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this ap...

Page 34: ...11 Control Knob 1 18D0603 18D0603 18D0603 18D0603 Millivolt Control 5 Control Valve 1 14D0467 14D0468 14D0467 14D0468 8 Front Burner Injector 1 59D2008 59D2010 59D2012 59D2014 9 Rear Burner Injector...

Page 35: ...failure to use only parts specifically approved with this appliance may result in property damage or personal injury Kentucky Stack Logs Ref Description Qty KSCL18 KSCL24 KSCL30 1 Back Log 1 59D1238K...

Page 36: ...og 1 59D1260 59D1268 59D1276 2 Right Bottom Log 1 59D1261 59D1269 59D1277 3 Left Bottom Log 1 59D1262 59D1270 59D1278 4 Top Center Log 1 59D1266 59D1274 59D1325 5 Top Right Middle Log 1 59D1267 59D127...

Page 37: ...HVFL Unvented Gas Logs 59D1015 37...

Page 38: ...ith the above requirements provided however that during said thirty 30 day period a battery operated carbon monoxide detector with an alarm shall be installed Massachusetts Residents Only Please read...

Page 39: ...nty 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 burner assembly damage by acc...

Page 40: ...MHSC 149 Cleveland Drive Paris Kentucky 40361 www mhsc com...

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