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901267-01E

10

INSTALLATION

Continued

Propane/LP Gas Conversion 

To  convert  to  propane/LP  gas,  burner  inlet 
fitting and pilot orifice must be replaced. The 
propane/LP burner inlet fitting is supplied with 
orifice installed for a 24" log set. If you have an 
18" set, you must change this orifice also. See 
Figure 1, page 4, for product identification. 

Burner Inlet Fitting

1.  Remove burner inlet fitting from burner 

pan assembly (see Figure 12). DO NOT 
remove orifice from fitting. Propane/LP 
burner  inlet  fitting  is  included  in  hard

-

ware kit (see Figure 13).

2.  Be sure to use correct orifice for your ap

-

pliance.  The  hardware  kit  included  with 
this appliance contains two orifices with 
a  cone-like  shape.  If  you  have  an  18" 
set, orifice for burner inlet fitting is red. If 
you have a 24" log set, orifice is already 
installed inside the fitting. The black orifice 
will not be used in any multi-side unit and 
may be discarded.

3.  For an 18" set, use a 10 mm socket or nut 

driver to remove orifice from propane/LP 
burner  inlet  fitting.  Choose  the  correct 
orifice for your log set size and install in 
place of orifice you just removed.

4.  Using thread sealant (resistant to action 

of propane/LP gas) on larger end of fitting, 
screw  burner  inlet  fitting  through  hole 
and into burner manifold. Tighten using a 
wrench. 

5 .  Follow steps 1 through 12 under 

Natural 

Gas Installation

, page 8.

Figure 13 - Burner Inlet Fittings with 

Injectors

Figure 12 - Remove Burner Inlet Fitting

Burner Inlet Fitting 
for Natural Gas

Figure 14 - Installing Propane/LP Pilot 

Orifice

Pilot Injector

Changing Pilot Orifice

The pilot is provided with a natural gas ori

-

fice installed. For propane/LP gas you must 
remove natural gas orifice and replace it with 
a propane/LP orifice. The hardware kit con

-

tains a propane/LP orifice with a red stripe for 
converting pilot. 
1.  Gently loosen and remove pilot line connec

-

tion from bracket (see Figure 14). 

2.  Replace  injector  (see  Figure  14)  with 

propane/LP pilot injector with red stripe.

3.  Replace and tighten pilot line to bracket.
4.  Continue with step 3 under 

Natural Gas 

Installation

, page 8.

NATURAL 

GAS 

FITTING

PROPANE/

LP GAS 

FITTING

Injector for 
Natural Gas

Injector for 
Propane/LP Gas

f i r e - p a r t s . c o m

Summary of Contents for VMLR18

Page 1: ...lammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your...

Page 2: ...ad and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this log set WARNING Improper instal lation adjustment alteration service or maintenance...

Page 3: ...wish to add more ventilation by opening a window safety Continued 7 To reduce the creation of soot follow the instructions in Cleaning and Maintenance page 13 8 Do not allow fans to blow directly int...

Page 4: ...______ Serial Number _ ______________________ Log Set Model ______________________ ON OFF Safety Valve Pilot kit and Propane lp conversion An optional valve safety pilot kit with a piezo ignitor is av...

Page 5: ...use of unauthorized componentsoraccessoryitems will void the manufacturer s warranty and may result in a hazardous condition FLUE OPENING SPECIFICATIONS Note This vented appliance must be installed o...

Page 6: ...n Continued Figure 3 Attaching Damper Clamp CONNECTING TO GAS SUPPLY WARNING A qualified ser vice person must connect log set to gas supply Follow all local codes Installation Items Needed Before inst...

Page 7: ...ce with its appliance main gas valve control valve and equip ment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pip...

Page 8: ...Figure 7 Adjust to most convenient position 4 Install gas connector tube to gas supply fitting Carefully shape tube to attach to adapter fitting Be careful not to cause kinks in tube 5 Using 1 4 x 8...

Page 9: ...pipe Adjust to most convenient position 6 Install gas connector tube to gas supply fitting Carefully shape tube to attach to adapter fitting Be careful not to cause kinks in tube 7 Test for leaks fol...

Page 10: ...pane LP burner inlet fitting Choose the correct orifice for your log set size and install in place of orifice you just removed 4 Using thread sealant resistant to action of propane LP gas on larger en...

Page 11: ...aming ports with a modi fied paper clip or other suitable tool 5 When finished testing turn gas shutoff valve OFF to extinguish all flames Adding Pan Material 1 Open bags of ash bed material vermicu l...

Page 12: ...n material about 2 from end of supply side of pan 5 Slowly turn gas shutoff valve ON until burner ignites If burner does not ignite within 10 seconds with match burning turn shutoff valve OFF and repe...

Page 13: ...r should light If burner does not light call a quali fied service person 9 To shut off burner only leaving pilot lit turn control knob clockwise to the POLOT position OPERATIon Continued Pilot Thermoc...

Page 14: ...arbon soot where flames contact the logs This is especially true with pro pane LP gas Burner is excessively noisy Note The movement and combustion of gas will cre ate low unavoidable levels of noise B...

Page 15: ...d tighten until snug then tighten 1 4 turn more 6 Replace thermocouple 7 Replace control valve 1 Clean burner orifice 2 Contact local natural or propane LP gas company 3 Reconnect leads 1 Adjust pilot...

Page 16: ...ntracting while cooling 1 Log Set burning vapors from paint hair spray glues cleaners chemi cals new carpet etc See IMPORTANT statement above 2 Gas leak See Warning statement at top of page 1 Gas leak...

Page 17: ...ve ready your name your address model and serial numbers of your heater how heater was malfunctioning purchase date Usually we will ask you to return the part to the factory Parts Not Under Warranty C...

Page 18: ...www desatech com 901267 01E 18 Parts Burner Models VVMR18 VVMR24 FVMR18 and FVMR24 3 1 8 6 12 10 11 10 4 2 7 9 5 fire parts com...

Page 19: ...r 1 901064 03 Natural Gas Injector 1 5 901763 02 Burner Manifold 1 901763 01 Burner Manifold 1 6 901767 02 Burner Pan 1 901767 01 Burner Pan 1 7 901242 01 Damper Clamp Std Assembly 1 8 901232 01 Gas L...

Page 20: ...s on page 17 of this manual 1 5 6 3 4 7 2 Kingston Split Oak Logs KEY NO PART NO DESCRIPTION QTY 1 901123 01 Bottom Log VCB 13 2 901123 02 Bottom Log VCB 14 2 2 901122 01 Bottom Log VCB 11 2 901122 02...

Page 21: ...arts on page 17 of this manual 3 1 6 7 5 4 2 Manchester Split Oak Logs KEY NO PART NO DESCRIPTION QTY 1 901472 01 Bottom Log FC 8 2 901472 02 Bottom Log FC 10 2 2 901473 01 Bottom Log FC 9 2 901473 02...

Page 22: ...models For decorative purposes only Not to be used as additional logs on unit Individual Split Log GA9550A For decorative purposes only Not to be used as additional logs on unit Purchase these access...

Page 23: ..._________________________________________________ ______________________________________________________ ______________________________________________________ ________________________________________...

Page 24: ...DESA Heating LLC Authorized Service Center or a provider approved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will prov...

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