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121486-01F

9

INSTALLATION

Continued 

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 com-

bustible 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

INSTALLATION AND CLEARANCES 

FOR VENT-FREE OPERATION

  WARNING:  Maintain  the 

minimum  clearances.  If  you 

can, provide greater clearances 

from  floor,  ceiling,  and  adjoin

-

ing wall.

MINIMUM FIREPLACE CLEARANCE TO 

COMBUSTIBLE MATERIALS

 Side Wall 16", Ceiling 42", Front 36"

LOG SIZING REQUIREMENTS

Minimum Firebox

Height Depth

Front 

Width

Rear * 

Width

17"

14"

34"

24"

* Measured at 14" depth.

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 infor-
mation 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 noncombustible material be-
hind it. Noncombustible material must extend 
at least 8" up. If noncombustible material is 
less than 12", you must install the fireplace 
hood accessory. See Figure 5, page 10 for 
minimum clearances.

*

Summary of Contents for LDL3930NRB

Page 1: ...ctrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire depa...

Page 2: ...ented gas fired heat er It uses air oxygen from the room in which it is installed Provisions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ven tilation s...

Page 3: ...ings Keep this manual for reference It is your guide to safe and proper operation of this heater WARNING Any change to this heater or its controls can be dangerous WARNING Do not use a blower insert h...

Page 4: ...nd Maintenance page 22 9 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these products may create a white powder residue within burner b...

Page 5: ...DS pilot shuts off the heater if there is not enough fresh air Piezo Ignition System This heater has a piezo ignitor This system requires no matches batteries or other sources to light heater Air For...

Page 6: ...Z223 1 NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1 000 Btu hr 4 8 m3 per kw of the aggregate input rating of all appliances installed in that space and a...

Page 7: ...Air From Inside Building This fresh air would come from an adjoining unconfined space When ventilating to an adjoining unconfined space you must provide two permanent openings one within 12 of the ce...

Page 8: ...e is equipped for either natural gas or propane LP gas but not both Gas type is indicated on the rat ingplate Fieldconversionisnot permitted NOTICE Thisheater isintended for use as supplemental heat U...

Page 9: ...ee Operation WARNING Maintain the minimum clearances If you can provide greater clearances from floor ceiling and adjoin ing wall MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Side Wall 16 Ceil...

Page 10: ...es you must operate heater with chimney flue damper open Go to Install ing Damper Clamp Accessory for Vented Operation page 11 Mantel Clearances In addition to meeting noncombustible mate rial clearan...

Page 11: ...must be installed only in a solid fuel burning fireplace with a working flue and constructed of noncombustible material ForMassachusettsResidentsOnly Installation ofthisventedgaslogsetintheCommonwealt...

Page 12: ...oved flexible gas hose to gas control fitting in heater see Figure 11 IMPORTANT Hold gas fitting with wrench when connecting flexible gas hose 2 Locate two masonry screws in hardware package 3 Place h...

Page 13: ...must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 of water If you do not re duce incoming gas pressu...

Page 14: ...tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 17 IMPORTANT Install equipment shutoff valve in an accessible location The equipment shutoff valve is for turni...

Page 15: ...as valve located on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to all joints Bubbles forming show...

Page 16: ...ifically approved with this heater may result in property damage or personal injury CAUTION After installa tion and periodically thereafter check to ensure that no flame comes in contact with any log...

Page 17: ...hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air an...

Page 18: ...fter the pilot is lit 1 STOP Read the safety information on page 17 2 Make sure equipment shutoff valve is fully open 3 Remove control cover log see Figure 26 4 Set remote selector switch in the REMOT...

Page 19: ...its will have a slight curve but flame should be blue and have no yellow or orange color Figure 28 Pilot Propane LP Ignitor Electrode Pilot Burner Figure 29 Pilot Natural Ignitor Electrode Pilot Burne...

Page 20: ...in high position see Figure 32 A beep from the receiver confirms the command Push ON OFF button again and burners will turn off A beep from the receiver confirms the command Figure 32 Hand Held Remot...

Page 21: ...re The control system will cycle the fireplace on or off to maintain se lected temperature Child Safety Lock Out This function lets you deactivate the remote control buttons It is active when the lock...

Page 22: ...o Turn Off Gas to Appliance page 19 see Troubleshooting page 24 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color WARNING T...

Page 23: ...y Air Inlet Holes Shape of Holes May Vary by Model Figure 40 Injector Holder On Outlet Burner Tube Figure 41 Pilot Inlet Air Hole LOGS If you remove logs for cleaning refer to In stalling Logs page 16...

Page 24: ...n in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubin...

Page 25: ...l knob pressed in 30 seconds 3 Wait one minute for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shut off valve 5 A Contact local natural or propane LP gas company...

Page 26: ...r off when us ing furniture polish wax carpet cleaners or similar products 1 Refer to Air for Combustion and Ventilation require ments page 5 1 Properly locate logs see Installing Logs page 16 2 Elimi...

Page 27: ...fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warn ing statement at top of page 2 Control valve defective 1 Foreign matter between control valve and burne...

Page 28: ...nt parts This will protect your warranty coverage for parts replaced under warranty Parts Under Warranty Contact authorized dealers of this product If they can t supply original replacement part s cal...

Page 29: ...onal rock is desired CLEANING KIT CCK For all models Your vent free gas appliance requires regular cleaning and maintenance to prevent performance problems This kit gives you the tools and instruction...

Page 30: ...atech com 121486 01F 30 Parts Models LDL3930NRB and LDL3930PRB 11 28 2 3 25 18 5 19 10 7 7 6 4 20 24 16 14 26 9 23 23 15 16 8 23 23 23 23 17 22 28 29 21 1 12 13 27 1 27 2 27 3 27 4 27 5 27 6 27 7 27 8...

Page 31: ...Extension 1 21 121129 01 Proflame Remote Control 1 22 121129 02 Proflame Receiver 1 23 M11084 26 Screw HWH AB 10 16 x 0 38 17 24 M12461 26 Screw Hex SLT WSR 10 32 x 0 38 6 25 098249 01 ODS Nut 2 26 1...

Page 32: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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