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111347-01F

INSTALLATION AND CLEARANCES 

FOR VENT-FREE OPERATION

 WARNING: Maintain the mini-

mum clearances. If you can, pro

-

vide greater clearances from floor, 

ceiling and adjoining wall.

INSTALLATION

Continued

LOG SIZING REQUIREMENTS

Minimum Firebox

  Height 

Depth 

Front 

Rear *

 

 

 

Width 

Width

 

17" 

14" 

8" 

1"

* Measured at 14" depth.

MINIMUM FIREPLACE CLEARANCE TO 

COMBUSTIBLE MATERIALS

 

Side Wall 

Ceili

ng

 

16" 

4"

Carefully follow the instructions below. This will 

ensure safe installation into a masonry, UL127-listed 

manufactured fireplace or listed vent-free firebox. 

Minimum Clearances For Side Combustible 
Material, Side Wall and Ceiling 

A.  Clearances  from  the  side  of  the  fireplace 

cabinet to any combustible material and wall 

should follow diagram in Figure 4.

 

Example:

 The face of a mantel, bookshelf, 

etc.  is  made  of  combustible  material  and 

protrudes 3 

1

/

2

" from the wall. This combus-

tible material must be 4" from the side of the 

fireplace cabinet (see Figure 4).

 

Note:

 When installing your gas logs into 

a  manufactured  firebox,  follow  firebox 

manufacturer’s  instructions  for  minimum 

clearances to combustible materials.

B.  Clearances from the top of the fireplace opening 

to the ceiling should not be less than 42". 

Figure 4 - Minimum Clearance for 

Combustible to Wall 

*Minimum 16" from Side Wall 

Example

NOTICE: Manual control heaters 

may be used as a vented product. 

If so, you must always run heater 

with chimney flue damper open. 

If  running  heater  with  damper 

open,  noncombustible  material 

above  fireplace  opening  is  not 

needed. Go to 

Installing Damper 

Clamp  Accessory  for  Vented 

Operation

, page 11.

MINIMUM NONCOMBUSTIBLE 
MATERIAL CLEARANCES

If Not Using Mantel

Note:

 If using a mantel proceed to 

If Using Mantel

If not using a mantel, follow the information on 

this page. 

You must have noncombustible material(s) above 

the fireplace opening. Noncombustible materials 

(such as slate, marble, tile, etc.) must be at least 

1/2" thick. With sheet metal, you must have non

-

combustible material behind it. Noncombustible 

material must extend at least 8" up (for all models). 

If noncombustible material is less than 12", you 

must install the fireplace hood accessory. See Figure 

5, page 10, for minimum clearances.

If Using Mantel

You must have noncombustible material(s) above 

the fireplace opening. Noncombustible materials 

(such as slate, marble, tile, etc.) must be at least 

1/2" thick. With sheet metal, you must have non

-

combustible material behind it. Noncombustible 

material must extend at least 8" up). If noncombus

-

tible material is less than 12", you must install the 

fireplace hood accessory. Even if noncombustible 

material is more than 12", you may need the hood 

accessory to deflect heat away from your mantel 

shelf. See Figures 5, 6 and 7, page 10, for minimum 

clearances. 

IMPORTANT:

 If you cannot meet these minimum 

clearances, you must operate heater with chimney 

flue damper open. Go to 

Installing Damper Clamp 

Accessory for Vented Operation

, page 11.

*

Summary of Contents for CDL3924NT

Page 1: ...n your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must...

Page 2: ...as supplier WARNING This appliance is for installation only in a solid fuel burning mason ry or UL127 factory built fireplaceorinalistedvent lessfireboxenclosure Itis design certified for these instal...

Page 3: ...enerateschemicals known to the State of California to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manualcarefullyandcompletely before trying to assemble operat...

Page 4: ...se this heater to cook food or burn paper or other objects 13 Do not use heater if any part has been exposed to or under water Immediately call a qualified service technician to inspect the room heate...

Page 5: ...ir for proper combustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide adequate fresh air for these appliances...

Page 6: ...ed a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them DETERMINING FRESH AIR FLOW FOR HEATER LOCATION Determining...

Page 7: ...as an unconfined space or if the building is of unusually tight construction provide adequate combustion and ventilation air byoneofthemethodsdescribed in the National Fuel Gas Code ANSIZ223 1 NFPA54...

Page 8: ...lace If not drafting may cause pilot outage or sooting Use a heat resistant sealant Do not seal chimney flue damper WARNING Never install the heater in a bedroom or bathroom unless installed as a vent...

Page 9: ...Ifso youmustalwaysrunheater with chimney flue damper open If running heater with damper open noncombustible material above fireplace opening is not needed Go to Installing Damper Clamp Accessory for V...

Page 10: ...opening and mantel shelf If you do not meet the clearances listed below you will need a hood Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplac...

Page 11: ...e and constructed of noncombustible material Ifyourheaterisamanually controlledmodel youmay usethisheaterasaventedproduct Therearethreerea sons for operating your heater in the vented mode 1 Thefirepl...

Page 12: ...are package provided with heater approved flexible gas hose and fittings not provided if allowed by local codes sealant resistant to propane LP gas not provided electric drill with 3 16 drill bit meta...

Page 13: ...down Installation Continued as shown in Figure 13 Pointing the vent down protects it from freezing rain or sleet CAUTION Useonlynew black ironorsteelpipe Internally tinned copper tubing may be used in...

Page 14: ...opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter to equipment shutoff valvefornaturalgasorpropane LPsup ply to equipment sh...

Page 15: ...Valve Figure 18 Rear Log Placement Variable Manually Controlled Models Rear Log INSTALLING LOGS WARNING Failure to position thepartsinaccordancewiththese diagrams or failure to use only parts specifi...

Page 16: ...xplosion may result caus ing property damage personal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFO...

Page 17: ...low B in the safety information page 16 If you don t smell gas go to the next step 6 Slightly depress and turn control knob counterclockwise to the PILOT position Keep control knob pressed in for five...

Page 18: ...control knob and light pilot with match 3 Keep control knob pressed in for30 seconds after lighting pilot After 30 seconds release control knob Now follow steps 9 and 10 page 17 Thermostat Models FOR...

Page 19: ...If you don t smell gas go to the next step OPERATING HEATER Continued 5 Turn control knob counterclockwise to the PILOT position Press in control knob for five 5 seconds see Figure 25 Note You may be...

Page 20: ...pattern Figure 28 shows an incorrect pilot flame pattern The incor rect pilot flame is not touching the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater wi...

Page 21: ...f you don t follow directions on the can you could damage the pilot assembly 1 Remove control cover log and front log 2 Shut off the unit including the pilot Allow the unit to cool for at least thirty...

Page 22: ...ot flame not touching ther mocouple which allows ther mocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partiall...

Page 23: ...s at burner inlet Periodically repeat as needed 4 Remove blockage TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS pilot is lit Delayed ignition of one or both burners Burner...

Page 24: ...ce page 21 1 Locate and correct all leaks see Checking Gas Connec tions page 14 2 Replace control valve 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking Ga...

Page 25: ...ake sure you tighten the screw after removing the thermostat sensing bulb IMPORTANT Do not force or bend the thermostat sensing bulb or capillary 3 The thermostat sensing bulb may be located to thelow...

Page 26: ...s For purpose of input adjustment Meadowbrook Oak Log Thermostatically Controlled Btu Variable 26 000 39 000 Type Gas Propane LP Natural Ignition Piezo Manifold Pressure 8 0 W C 3 5 W C Inlet Gas Pres...

Page 27: ...ssure Is Too Low pilot will not stay lit burners will have delayed ignition heater will not produce specified heat for propane LP units propane LP gas supply may be low Youmayfeelyourgaspressureistool...

Page 28: ...27 28 1 28 2 28 5 28 4 24 15 16 17 19 18 8 21 26 22 9 4 11 10 28 3 12 20 13 6 20 25 25 25 25 5 7 Illustrated Parts Breakdown Variable Manually Controlled Echo Valley Oak Log Models LSL3124N LSL3124P 3...

Page 29: ...ral Gas 1 13 099387 08 099387 08 Pilot Tube 1 14 099056 31 099056 26 Injector 1 15 110790 01 110790 01 Left Front Burner Bracket 1 16 110790 02 110790 02 Right Front Burner Bracket 1 17 110793 01 1107...

Page 30: ...1347 01F 30 ILLUSTRATED PARTS BREAKDOWN Thermostatically Controlled Meadowbrook Oak Log Models CDL3924NT CDL3924PT 15 1 3 4 6 5 12 12 12 20 19 12 16 14 13 2 18 12 12 21 22 23 17 7 11 8 24 1 24 3 24 4...

Page 31: ...be 1 12 M11084 26 M11084 26 Screw 10 16 x 38 15 13 108631 01 108631 01 Screw 1 Blunt Tip Phillips 2 14 110790 03 110790 03 Rear Burner Bracket 2 15 110790 01 110790 01 Left Front Burner Bracket 1 16 1...

Page 32: ...The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original conditi...

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