background image

www.desatech.com

901267-01E

7

INSTALLATION

Continued

Figure 5 - Checking Gas Joints

IMPORTANT:

 Install equipment shutoff valve 

in  an  accessible  location.  The  equipment 
shutoff valve is for turning on or shutting off 
the gas to the appliance.
Apply pipe joint sealant lightly to male NPT 
threads. This will prevent excess sealant from 
going into pipe. Excess sealant in pipe could 
result in a clogged burner injector.

  WARNING:  Use  pipe  joint 

sealant that is resistant to liquid 

petroleum (LP) gas.

We  recommend  that  you  install  a  sediment 
trap in supply line as shown in Figure 4, page 
6.  Locate  sediment  trap  where  it  is  within 
reach  for  cleaning.  Install  in  piping  system 
between fuel supply and heater. Locate sedi

-

ment trap where trapped matter is not likely 
to freeze. A sediment trap traps moisture and 
contaminants.  This  keeps  them  from  going 
into log set controls. If sediment trap is not 
installed  or  is  installed  wrong,  log  set  may 
not run properly.

CHECkING GAS CONNECTIONS

 WARNING: Test all gas piping 

and  connections,  internal  and 

external to unit, for leaks after 

installing or servicing. Correct 

all leaks at once.

 WARNING: Never use an open 

flame to check for a leak. Apply a 

noncorrosive leak detection fluid 

to all joints. Bubbles forming show 

a leak. Correct all leaks at once.

Pressure Testing Gas Supply Piping 

System 
Test Pressures In Excess Of 1/2 PSIG 

(3.5 kPa)

1.  Disconnect  appliance  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 pipe where equip

-

ment shutoff valve was connected.

Gas Meter

Equipment 
Shutoff 
Valve

3.  Pressurize supply piping system by either 

using compressed air or opening main gas 
valve located on or near gas meter.

4.  Check all joints of gas supply piping sys

-

tem. Apply  noncorrosive  leak  detection 
fluid to gas joints. Bubbles forming show 
a leak. 

5.  Correct all leaks at once.
6.  Reconnect log set and equipment shutoff 

valve to gas supply. Check reconnected 
fittings for leaks.

Test Pressures Equal To or Less Than 
1/2 PSIG (3.5 kPa)

1.  Close equipment shutoff valve (see Fig

-

ure 5).

2.  Pressurize supply piping system by either 

using compressed air or opening main gas 
valve located on or near gas meter.

3.  Check all joints from gas meter to equip

-

ment shutoff valve (see Figure 5). Apply 
mixture of liquid soap and water to gas 
joints. Bubbles forming show a leak. 

4.  Correct all leaks at once.

HEARTH kIT ASSEMBLY AND 
INSTALLATION

Kit Assembly

1.  Unscrew  burner  inlet  fitting  from  burner 

manifold.

2.  Place  burner  manifold  in  pan  with 

threaded opening facing open knockout 
plug (see Figure 6, page 8). Make sure 
the burner ports face downward. 

3.  Using thread sealant (resistant to the action 

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

Propane/LP Gas Conversion

, page 10.

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...

Reviews: