Page 2 - CONTENTS; SECTION; SAFETY; WARNINGS; Carbon monoxide poisoning may lead to death!
2 101992 CONTENTS SECTION PAGE SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual carefully and completely beforetrying to assemble, operate, or service this heater. Improper use of thisheater can cause serious injury or death from burns, fire, explosion,electrical shock, and carbon mon...
Page 3 - Continued
3 101992 SAFETY INFORMATION Continued WARNINGS Continued WARNING: Any change to this heater or its controls can be dangerous. 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. 2. Do not place propane/LP s...
Page 4 - Operation
4 101992 PRODUCT IDENTIFICATION Front Log Control Knob Figure 1 - Vent-Free Gas Log Heater Rear Log Base Assembly LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of localcodes, use the latest edition of The National Fuel Gas Code ANSI Z223, alsoknown as NFPA 54*....
Page 5 - WARNING; Unconfined Space; PROVIDING ADEQUATE VENTILATION; Unusually Tight Construction; and
5 101992 AIR FOR COMBUSTION AND VENTILATION WARNING ICON G 001 WARNING This heater shall not be installed in a confined space unlessprovisions are provided for adequate combustion and ventilationair. Read the following instructions to insure proper fresh air forthis and other fuel-burning appliances...
Page 6 - Determining if You Have a Confined or Unconfined Space
6 101992 AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoin...
Page 7 - VENTILATION AIR; Ventilation Air From Inside Building; Figure 3 - Ventilation Air from Outdoors; Ventilation Air From Outdoors; Figure 2 - Ventilation Air from Inside Building
7 101992 AIR FOR COMBUSTION AND VENTILATION Continued WARNING ICON G 001 WARNING If the area in which the heater may be operated is smaller thanthat defined as an unconfined space, provide adequate combus-tion and ventilation air by one of the methods described in theNational Fuel Gas Code, ANSI Z22...
Page 8 - INSTALLING; Never install the heater; CHECK GAS TYPE
8 101992 INSTALLING NOTICE A qualified service person must install heater. Follow all local codes. WARNING Before installing in a previously-used wood-burning fireplace, cleanchimney flue and firebox. Make sure flue is free of any creosote.Creosote will ignite if highly heated. Inspect chimney flue ...
Page 9 - LOG SIZING REQUIREMENTS; Minimum Wall and Ceiling Clearances (see Figure 4); should not be less than 16 inches.
9 101992 INSTALLING Continued INSTALLATION AND CLEARANCES (Vent-Free Operation Only) Figure 4 - Minimum Clearance to Wall and Ceiling Continued WARNING Maintain the minimum clearances. If you can, provide greater clear-ances from floor, ceiling, and adjoining wall. LOG SIZING REQUIREMENTS Log Minimu...
Page 10 - NOTICE; Installing; Minimum Non Combustible Material Clearances; If you cannot meet these minimum clearances, you must operate; Requirements for
10 101992 Heat ResistantMaterial (A) INSTALLING Continued NOTICE Manual control heaters may be used as a ventedproduct. If so, you must always run heater withchimney flue damper open. If running heater withdamper open, non-combustible material abovefireplace opening is not needed. Go to Installing D...
Page 11 - If Using Mantel; Non Combustible; Mantel Clearances
11 101992 Minimum Non-Combustible Material Minimum Non-Combustible Material Height Distances to Underside ofMantel Top of FireplaceOpening Underside ofMantel Shelf 12" 8" (A) 20" 14" 24 1/2 " 16 3/4 " 27 1/2 " 18 1/2 " 30" 20" All minimum distances arein inche...
Page 12 - Floor Clearances
12 101992 14"Min. Combustible Material Non-Combustible Material Hearth 5"Min. Combustible Material INSTALLING Continued Floor Clearances A. If installing appliance on the floor level, you must maintain the minimum distance of 14" to combustibles (see Figure 8). B. If combustible material...
Page 14 - Installation Items Needed; flexible gas hose to gas regulator of heater (see Figure 11).
14 101992 INSTALLING Continued INSTALLING HEATER BASE ASSEMBLY WARNING If installing in a sunken fireplace, special care is needed. Youmust raise the fireplace floor to allow access to heater controlpanel. This will insure adequate air flow and guard against soot-ing. Raise fireplace floor with non-...
Page 15 - Figure 12 - Attaching Mounting Brackets to Heater; CONNECTING TO GAS SUPPLY; • external regulator (supplied by
15 101992 INSTALLING Continued MountingBracket Masonry Screw Figure 12 - Attaching Mounting Brackets to Heater CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply.Follow all local codes. CAUTION Never connect heater directly to the propane/LP supply. This hea...
Page 16 - Figure 13 - External Regulator With Vent Pointing Down
16 101992 INSTALLING Continued The installer must supply an external regulator. The external regulator will reduceincoming gas pressure. You must reduce incoming gas pressure to between 11 and14 inches of water. If you do not reduce incoming gas pressure, heater regulatordamage could occur. Install ...
Page 17 - CAUTION; Figure 14 - Gas Connection; Pressure Testing gas Supply Piping system; Test Pressures In Excess Of 1/2 PSIG; Connecting to Gas; CHECKING GAS CONNECTIONS
17 101992 Tee Joint Pipe Nipple Cap 3" Minimum Sediment Trap GasRegulator From External Regulator (11" W.C.** to 14" W.C. Pressure) A.G.A. Design-CertifiedManual Shutoff ValveWith 1/8" NPT Tap* Approved FlexibleGas Hose (if allowedby local codes) CAUTION Avoid damage to regulator. Ho...
Page 18 - Test Pressures Equal To or Less Than 1/2 PSIG; Pressure Testing Heater Gas Connections; Figure 15 - Manual Shutoff Valve; Figure 16 - Checking Gas Joints
18 101992 ON POSITION OFF POSITION 3. Pressurize supply piping system by either using compressed air or opening propane/LP supply tank valve. 4. Check all joints of gas supply piping system. Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 5. Correct all leaks at on...
Page 19 - INSTALLING LOGS
19 101992 Each log is marked with a number. These numbers will help you identify the log wheninstalling. It is very important to install these logs exactly as instructed. Do not modify logs.Only use logs supplied with heater.1. Slide front log (#1) into place behind front burner. Make sure tabs at b...
Page 20 - OPERATING; FOR YOUR SAFETY READ BEFORE LIGHTING; LIGHTING INSTRUCTIONS; fireplace screen is closed before running heater.
20 101992 PILOT OFF LO HI OPERATING HEATER 1. STOP! Read the safety information above. 2. Make sure manual shutoff valve is fully open. 3. Turn control knob clockwise to the OFF position. Figure 20 - Control Knob and Ignitor Button Location Control Knob Ignitor Button 4. Wait five (5) minutes to cle...
Page 21 - TO TURN OFF GAS TO APPLIANCE; Shutting Off Heater; THERMOSTAT CONTROL OPERATION
21 101992 OPERATING HEATER Continued 5. Turn control knob counterclockwise to the PILOT position. Press in control knob for five (5) seconds (see Page 20). Note: You may be running this heater for the first time after hooking up to gas supply. If so, the control knob may need to be pressed in for 30...
Page 22 - Check pilot flame pattern and burner flame patterns often.; PILOT FLAME PATTERN; If pilot flame pattern is incorrect, as shown in Figure 23; FRONT BURNER FLAME PATTERN; If front burner flame pattern is incorrect, as shown in Figure 25
22 101992 INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 22 shows a correct pilot flame pattern. Figure 23 shows an incorrect pilot flamepattern. The incorrect pilot flame is not touching the thermocouple. This will cause thethermocouple to c...
Page 23 - Turn off heater and let cool before cleaning.; SHOOTING; REMEDY; ODS/PILOT AND BURNERS
23 101992 CLEANING AND MAINTENANCE WARNING Turn off heater and let cool before cleaning. CAUTION You must keep control areas, burners, and circulating air passage-ways of heater clean. Inspect these areas of heater before eachuse. Have heater inspected yearly by a qualified service person.Heater may...
Page 26 - If you smell gas; Operating heater where impurities in air exist may create odors.; See Warning
26 101992 TROUBLE- SHOOTING Continued WARNING If you smell gas • Shut off gas supply.• Do not try to light any appliance.• Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a n e i g h b o r ’ s p h o n e . F o l l o w t h e g a ssup...
Page 27 - For Masonry and
27 101992 OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory-built Metal Fireplace If your log set cycles to pilot, but the room temperature drops to a lower thanideal comfort level before the log set comes back on, you may want to reposi-tion the thermostat sensing bulb. The th...
Page 28 - Figure 31 - Installing Thermostat Sensing Bulb behind Glass Doors; Do not crimp capillary.; with the Capillary at the Bottom
28 101992 OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory-built Metal Fireplace Continued Adhesive-backedMounting Clip Figure 29 - Locating Thermostat Sensing Bulb on Masonry Fireplace ThermostatSensing Bulb If you have a factory-built metal fireplace, see Figure 29 for locat...
Page 29 - SPECIFICATIONS; When gas pressure is too low; SERVICE
29 101992 TECHNICAL SERVICE You may have further questions about installation, operation, or troubleshooting.If so, contact DESA International’s Technical Service Department at1-800-DESA LOG (1-800-337-2564). CG3324PT CG3630PT B.T.U (Variable) 20,000/33,000 21,500/36,000 Type Gas Propane/LP Only Pro...
Page 30 - age for parts replaced under warranty.; Parts Under Warranty; Parts Not Under Warranty; When calling DESA International, have ready; REPLACEMENT
30 101992 Note: Use only original replacement parts. This will protect your warranty cover- age for parts replaced under warranty. Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replacementpart(s), call DESA International’s Technical Service Department...
Page 31 - ACCESSORIES
31 101992 ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supplythese accessories, call DESA International’s Parts Department at 1-800-972-7879for information. You can also write to the address listed on the back page of thismanual. MANUAL SHUTOFFVALVE - GA5010 ...
Page 32 - Variably Controlled
32 101992 ILLUSTRATED PARTS BREAK- DOWN Variably Controlled Models 3 29 28 6 7 8 28 28 25 10 9 10 11 12 13 1 14 16 20 22 23 29-1 29-2 25 19 18 24 17 2 1 7-1 7-2 26 4 5 27 3
Page 33 - PARTS LIST
33 101992 PARTS LIST Variably Controlled Models This list contains replaceable parts used in your heater. When ordering parts, followthe instructions listed under Replacement Parts on page 30 of this manual. KEY PART NUMBER FOR NO. CG2618PV CG3324PV CG3630PV DESCRIPTION QTY. 1 102230-01 102230-02 10...
Page 34 - Controlled Models
34 101992 ILLUSTRATED PARTS BREAK- DOWN Thermostat- Controlled Models 3 29 30 6 7 8 30 30 26 10 9 10 11 12 13 15 14 16 21 23 2 29-1 29-2 26 19 20 18 25 17 2 1 7-1 7-2 4 5 27 30 3
Page 36 - KEEP THIS WARRANTY; WARRANTY INFORMATION; LIMITED WARRANTY
KEEP THIS WARRANTY WARRANTY INFORMATION Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standardwritten warranty. We make no other warranty, expressed or im...