Desa Comfort Glow CGD3924NR Page 27 Owner'S Operation And Installation Manual Download

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103343

TECHNICAL

SERVICE

You may have further questions about installation, operation, or troubleshooting.
If so, contact DESA International’s Technical Service Department at
1-800-DESA LOG (1-800-337-2564).

SPECIFICATIONS

CGD3924NR

Btu (Variable)

20,000/39,000

Type Gas

Natural Gas Only

Ignition

Piezo

Manifold Pressure

3.5" W.C.

Inlet Gas
Pressure (in. of water)

Maximum

10.5"

Shipping Weight

30 lbs.

When gas pressure is too low

• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat

When gas quality is bad

• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit

You may feel your gas pressure is too low or gas quality is bad. If so, contact your
local natural gas supplier.

SERVICE

HINTS

WIRING

DIAGRAM

Receiver

White

On
Off

Remote

Red

White

Thermopile

Gas Control

TPTH

TPTH TP

Summary of Contents for Comfort Glow CGD3924NR

Page 1: ...tion and operational procedures For assistance or additional information consult a qualified installer service agency or the gas supplier WARNING This gas log set is for instal lation in a masonry sol...

Page 2: ...titudes Natural Gas Natural gas is odorless An odor making agent is added to the gas The odor helpsyoudetectagasleak However theodoraddedtothegascanfade Gasmaybepresent even though no odor exists Make...

Page 3: ...ydraftsthatalterburnerflamepatterns Ceiling fans may create drafts that alter burner flame patterns Altered burner patterns can cause sooting 10 Do not use a blower insert heat exchanger insert or oth...

Page 4: ...of vent free heaters You can operate heater as a vented product by opening flue damper Safety Pilot This heater has a pilot with an Oxygen Depletion Sensor Shutoff System ODS The ODS pilot is a requir...

Page 5: ...iances installed in that space Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors are consid ered a part of the unconfined spac...

Page 6: ...heater ___________________ Btu Hr Gas fireplace logs ___________________ Btu Hr Other gas appliances ___________________ Btu Hr Total ___________________ Btu Hr Example Gas water heater 40 000 Btu Hr...

Page 7: ...d size of ventilation grills or ducts WARNING Rework worksheet adding the space of the adjoining unconfined space The combined spaces must have enough fresh air to supply all appliances in both spaces...

Page 8: ...the front top or sides of the heater in high traffic areas in windy or drafty areas CAUTION This heater creates warm air currents These currents move heat to wall surfaces next to heater Installing he...

Page 9: ...e Minimum Wall and Ceiling Clearances see Figure 4 A Clearances from the side of the fireplace opening to any combustible wall should not be less than 16 inches B Clearances from the top of the firepl...

Page 10: ...combus tible material is less than 12 you must install the fireplace hood accessory 24 and 30 models only See chart below and Figure 5 for minimum clearances IMPORTANT If you cannot meet these minimu...

Page 11: ...en Figure 6 Minimum Mantel Clearances Without Using Hood Minimum Non Combustible Material Minimum Non Combustible Material Height Distances to Underside of Mantel Top of Fireplace Opening Underside of...

Page 12: ...on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 above th...

Page 13: ...e Figure 11 page 14 If installing in a brick bottom fireplace mark screw locations in mortar joint of bricks 5 Remove heater base from fireplace 6 Drill holes at marked locations using 3 16 masonry dr...

Page 14: ...43 INSTALLING Continued Masonry Screw Mounting Flanges Flexible Gas Hose if allowed by local codes Figure 10 Attaching Flexible Gas Hose to Heater Fitting Figure 11 Attaching Base Assembly to Fireplac...

Page 15: ...volume to heater If pipe is too small undue loss of pressure will occur Installation must include a manual shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook u...

Page 16: ...um inlet pressure for purpose of input adjustment INSTALLING Continued WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a...

Page 17: ...4 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once Pressure Testing Heater Gas Connections 1 Open manual shutoff valve see Figure 13 2 Open...

Page 18: ...he cutout on the right of the middle log should fit over the burner see Figure 16 Make sure the front of the middle log is resting on the tabs of the grate base and the cutout area is centered over th...

Page 19: ...any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water LIGH...

Page 20: ...d to the front burner If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit contact a qualified service person or gas supplier for repairs Until repairs are made li...

Page 21: ...N OFF REMOTE O F F PILO T O N L O IH Remote Selector Switch in Remote Position Control Knob in On Position Flame Adjustment Knob 1 After lighting let pilot flame burn for about one minute Turn control...

Page 22: ...MANUAL mode press the OFF button If operating in the auto mode press the manual button then press the OFF button The pilot will remain lit IMPORTANT To turn the pilot off manually turn the control kn...

Page 23: ...DS pilot unit POSSIBLE CAUSE 1 Ignitor electrode not con nected to ignitor cable 2 Ignitor cable pinched or wet 3 Piezo ignitor nut is loose 4 Broken ignitor cable 5 Bad piezo ignitor 6 Ignitor electr...

Page 24: ...thermocouple 7 Replace control valve OBSERVED PROBLEM When ignitor button is pressed there is spark at ODS pilot but no ignition ODS pilot lights but flame goes out when control knob is released POSSI...

Page 25: ...p after a few hours of operation 1 Refer to Air for Com bustion and Ventilation requirements page 5 1 Turn control knob to LO position and let warm up for a minute 2 Operate burner until air is remove...

Page 26: ...clicking ticking noise just after burner is lit or shut off Heater produces unwanted odors Heater shuts off in use ODS operates Gas odor even when control knob is in OFF position Gas odor during comb...

Page 27: ...et Gas Pressure in of water Maximum 10 5 Shipping Weight 30 lbs When gas pressure is too low pilot will not stay lit burners will have delayed ignition heater will not produce specified heat When gas...

Page 28: ...original replacement parts and accessories When calling a Parts Central ask for the Parts Department Baltimore Electric 1348 Dixwell Avenue Hamden CT 06514 1 800 397 7553 203 248 7553 Parts Department...

Page 29: ...can also write to the address listed on the back page of this manual MANUAL SHUTOFF VALVE GA5010 Manual shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe BLACK FIREPLACE HOOD GA6050 Helps deflect heat...

Page 30: ...PARTS BREAKDOWN CGD3924NR 7 16 16 17 25 16 3 2 1 4 11 21 10 9 12 15 8 19 18 20 6 14 5 13 27 26 26 REM OTE OFF ON 22 23 24 O F F P I L O T O N H I L O O F F P I L O T O N H I L O AU TO MA N OF F ST AT...

Page 31: ...er 1 13 099387 12 Pilot Tube Valve to regulator 1 14 103781 01 Gas Control Valve 1 15 103345 01 Lower Bracket 1 16 M11084 38 Screw 8 x 38 7 17 102775 06CK Painted Base Assembly 1 18 098271 07 Ignitor...

Page 32: ...ll such other costs related to repairing a defective heater will be the responsibility of the owner TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHE PRODUCT THIS EXPRESS WARRANTY...

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