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10

901049

VENTED NATURAL GAS LOGS

OPTIONAL GA9050 SERIES
ON/OFF SAFETY VALVE/
PILOT KIT ASSEMBLY

For additional convenience and safety, or
for propane/LP conversion, an optional ON/
OFF safety valve/pilot kit is available. See
Accessories, page 17.

 WARNING: You must use a

ON/OFF safety valve/pilot kit for
propane/LP conversion.

Natural Gas Installation

1.

Thread the gas control valve onto the
close pipe nipple (see Figure 11). Use
thread sealant on the male threads of
the fitting. Thread other end of the
nipple into the burner manifold block.
Hold the manifold block with a wrench
to prevent stressing the connections to
the burners. Make sure the control rod
is facing the front (see Figure 11).

2.

Attach the pilot gas line to the pilot out-
let of the gas control valve and tighten.
Connect the thermocouple to the rear of
the gas control valve (see Figure 12). Do
not overtighten. If using propane/LP gas,
see Changing Pilot Orifice, page 11.

3.

Install the inlet fitting into the inlet
opening of the gas control valve (see
Figure 13). Use thread sealant on the
male pipe threads.

4.

Thread the gas supply fitting to the fire-
place gas supply pipe (see Figure 10,
page 9). Adjust to most convenient po-
sition.

5.

Install the gas flex line to the gas supply
fitting. Carefully shape tube to attach to
adapter fitting.

6.

Place the burner pan assembly in the
center of the fireplace floor. Make sure
the front of pan faces forward.

7.

Test for leaks following instructions
under Testing Burner for Leaks, page 11.

8.

Retighten and adjust the location of the
gas control as necessary. The gas con-
trol should be level, with the control

Close Pipe
Nipple

Gas
Control
Valve

Manifold
Block

Figure 11 - Installing Gas Control Valve

Control Rod

INSTALLATION

Continued

rod to the front.

9.

Install valve cover to burner pan using
screws provided.

10. Install thermocouple, pilot, and ignitor

onto valve cover as shown in Figure 14.
Use the provided screws.

11. Push the control rod extension onto the

“D” shaped control rod through the cen-
ter hole in the cover.

12. Install the position decal and control

knob making sure to align the marks
with the correct stop positions of the
gas control. Pilot position will allow the
knob to push in about 1/2". Align the
decals in the pilot position.

Figure 12 - Gas Control Valve with Ther-
mocouple and Pilot

Figure 13 - Installing Inlet Fitting and Gas
Connector Tube

Piezo Ignitor

Control
Rod
Extension

Screw

Valve
Cover

Control Knob

Figure 14 - Installing Cover, Control Knob,
and Piezo Ignitor

Thermocouple and Line

Pilot and Line

Gas Control Valve

Gas Control
Valve

Gas Inlet
Fitting

Flex Gas
Line

Thermocouple

Ignitor

Pilot

Inlet
Opening

Burner
Pan

Propane/LP Gas Conversion

To convert to propane/LP gas, the burner
inlet fitting must be removed and pilot ori-
fice must be replaced.

Burner Inlet Fitting

Note:

 Be sure all pipe threaded connections

are tight, and have thread compound to
prevent leaks. Be sure to use the correct
orifice for your unit. See chart on page 7.

1.

Remove the burner inlet fitting from
the front burner manifold (installed in
burner pan). See Figure 15, page 11.

2.

Make sure ports on front burner mani-
fold are facing the front (open side) of
burner pan. Refit if needed.

3.

Replace front burner injector with the
provided injector. See chart on page 7
and Figure 16, page 11. Using thread
sealant (resistant to the action of pro-
pane/LP gas) on larger end of fitting,
screw the burner inlet fitting through
the hole and into the burner manifold.
Tighten using a 7/8" wrench.

Summary of Contents for Comfort Glow CVTR18

Page 1: ...rect installation and operational procedures For assistance or additional information consult a qualified installer service agency or the gas supplier WARNING This appliance is for installation only i...

Page 2: ...d fire box must be cleaned of soot creosote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated Inspect chimney flue for damage 5 You must operate this log set w...

Page 3: ...that can be purchased sepa rately for this log set You must use the millivolt valve safety pilot kit to use remote accessories with this appliance See Acces sories page 17 UNPACKING CAUTION Do not rem...

Page 4: ...heatlossinhomes Homeowners weather strip and caulk around windows and doorstokeepthecoldairoutandthewarmair in During heating months home owners want their homes as airtight as possible While it is go...

Page 5: ...combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used _____________ Btu Hr maximum the space can support...

Page 6: ...he two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see op tion 3 Figure 2 Follow the National Fuel Gas Code NFPA 54 ANS Z223 1 Section 5 3 Air for Combustion and V...

Page 7: ...must be in stalled only in a solid fuel burning fireplace with a working flue and constructed of non combustible material The charts in Figure 4 indicate technical information regarding the installati...

Page 8: ...s Needed Before installing log set make sure you have the items listed below piping check local codes sealant resistant to LP gas manual shutoff valve test gauge connection adjustable crescent wrench...

Page 9: ...16 wrench 6 Slip the air restrictor over the 1 8 pipe nipple Apply thread sealant to the male threads and install the rear burner nozzle onto the fitting Tighten with a 9 16 wrench 7 Place the grate...

Page 10: ...alve Manifold Block Figure 11 Installing Gas Control Valve Control Rod INSTALLATION Continued rod to the front 9 Install valve cover to burner pan using screws provided 10 Install thermocouple pilot a...

Page 11: ...e immedi ately Tighten or reassemble the loose connection s using pipe joint com pound until burner system is leak free 4 When the burner is tested and leak free observe the individual tongues of flam...

Page 12: ...f you then smell gas STOP Fol low the safety information above If you don t smell gas go on to the next step 4 Light a match and lay it on top of the U shaped burner near the edge of the cover on the...

Page 13: ...essed in for five 5 seconds Note You may be running this log set for the first time after hooking up to gas supply If so the control knob may need to be pressed in for 30 sec onds This will allow air...

Page 14: ...king sooting excessively Note It is natural and unavoidable for vented gas log sets to produce moderate levels of carbon soot where flames contact the logs This is especially true with propane LP gas...

Page 15: ...ce page 17 or replace pilot assembly 5 Hand 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 ga...

Page 16: ...tatement at top of page OBSERVED PROBLEM Log Set produces a clicking ticking noise just after burner is lit or shut off Log Set produces unwanted odors Gas odor even when control knob is in OFF positi...

Page 17: ...onal sTechnicalServiceDe partment at 1 800 DESA LOG 1 800 337 2564 WhencallingDESAInternational haveready your name your address modelandserialnumbersofyourfireplace how fireplace was malfunctioning t...

Page 18: ...18 901049 VENTED NATURAL GAS LOGS ILLUSTRATED PARTS BREAKDOWN CVTR18 CVTR24 4 19 23 21 22 20 24 25 26 2 3 8 7 11 10 1 5 6 15 9 14 12 13 27 16 18 5 17...

Page 19: ...Natural Gas 1 12 901761 01 901761 01 1 8 Hex Nipple 1 13 901760 01 901760 01 Manifold Block 1 14 901751 01 901751 01 Air Restrictor 1 15 901756 01 901756 01 Valve Cover 1 16 901056 01 901056 01 Brass...

Page 20: ...s Parts and Service 2444 North 5th Street Hartsville SC 29550 7704 803 332 0191 Parts Department Cans Unlimited Inc P O Box 645 Taylor SC 29687 0013 All States 803 879 3009 1 800 845 5301 Parts Depar...

Page 21: ...___________________ _______________________________________________________________________________________________ ____________________________________________________________________________________...

Page 22: ..._______________________ _______________________________________________________________________________________________ ________________________________________________________________________________...

Page 23: ...___________________ _______________________________________________________________________________________________ ____________________________________________________________________________________...

Page 24: ...log set will be the responsibility of the owner TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHEPRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND...

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