Summary of the content on the page No. 1
VENT-FREE NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
CGN10TA
CGN10TLA
WARNING: Improper installa-
WARNING: If the information in this manual is not
tion, adjustment, alteration,
followed exactly, a fire or explosion may result
service, or maintenance can
causing property damage, personal injury, or loss
cause injury or property dam-
of life.
age. Refer to this manual for
— Do not store or use gasoline or other flammable
correct installation and op-
vapors and liquids in the vic
Summary of the content on the page No. 2
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER 4. This heater needs fresh, outside air ven- SAFETY Due to high temperatures, the tilation to run properly. This heater has appliance should be located out INFORMATION an Oxygen Depletion Sensing (ODS) of traffic and away from furniture safety shutoff system. The ODS shuts and draperies. down the heater if not enough fresh air WARNING ICON G 001 WARNINGS is available. See Air for Combustion Do not place clothing or other and Ventilation, pages 4
Summary of the content on the page No. 3
OWNER’S MANUAL PRODUCT PRODUCT IDENTIFICATION FEATURES Ignitor Button Control Knob SAFETY DEVICE This heater has a pilot with an Oxygen Deple- tion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent- free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. PIEZO IGNITION SYSTEM Grill This heater has a piezo ignitor. This system Guard requires no matches, batteries, or other sources to light heater. THERMOSTATIC HEAT Glass Panel CONTRO
Summary of the content on the page No. 4
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER Confined and Unconfined PROVIDING ADEQUATE AIR FOR Spaces VENTILATION COMBUSTION AND The National Fuel Gas Code, ANS Z223.1 The following are excerpts from National VENTILATION defines a confined space as a space whose Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- volume is less than 50 cubic feet per 1000 tion 5.3, Air for Combustion and Ventilation. Btu per hour (4.8 cubic meters per kw) of the All spaces in homes fall into one of the three WARNING:
Summary of the content on the page No. 5
OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x Height = _________________cu. f
Summary of the content on the page No. 6
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER AIR FOR COMBUSTION AND 12" VENTILATION Continued Ventilation Grills VENTILATION AIR Into Adjoining Room, Ventilation Option 2 Ventilation Air From Inside Grills Or Building into Adjoining Remove Room, Door into This fresh air would come from an adjoining Option 1 Adjoining unconfined space. When ventilating to an Room, Option 3 adjoining unconfined space, you must pro- vide two permanent openings: one within 12" of the ceiling and one withi
Summary of the content on the page No. 7
OWNER’S MANUAL CEILING LOCATING HEATER INSTALLATION This heater is designed to be mounted on a wall. NOTICE: This heater is intended 36" for use as supplemental heat. Use Minimum WARNING: Maintain the mini- this heater along with your pri- 6" Minimum mum clearances shown in Figure mary heating system. Do not in- From 4. If you can, provide greater clear- Sides Of stall this heater as your primary Heater ances from floor, ceiling, and join- heat source. If you have a central ing wall. heating sy
Summary of the content on the page No. 8
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER Thin or Thick Installing Bottom Mounting INSTALLATION Wall Screw Continued (thick wall 1. Locate bottom mounting hole. This shown) hole is near bottom on back panel of Installing Two Mounting Screws 1/16" Space heater (see Figure 11). Note: Wall anchors and mounting screws 2. Mark screw location on wall. are in hardware package. The hardware pack- Solid 3. Remove heater from wall. age is provided with heater. Wall 4. If installing bottom mounting
Summary of the content on the page No. 9
OWNER’S MANUAL Installation must include an equipment Install sediment trap (trap) in supply line as INSTALLATION shutoff valve, ground joint union, and shown in Figure 12. Locate sediment trap Continued plugged 1/8" NPT tap. Locate NPT tap within where it is within reach for cleaning. Locate reach for test gauge hook up. NPT tap must sediment trap where trapped matter is not be upstream from heater (see Figure 12). likely to freeze. A sediment trap traps mois- CONNECTING TO GAS ture and contami
Summary of the content on the page No. 10
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER Pressure Testing Heater Gas INSTALLATION OPERATING Connection Continued HEATER 1. Open equipment shutoff valve (see Fig- CHECKING GAS ure 13). CONNECTIONS FOR YOUR SAFETY 2. Open main gas valve located on or near READ BEFORE gas meter. WARNING: Test all gas pip- LIGHTING 3. Make sure control knob of heater is in ing and connections for leaks the OFF position. after installing or servicing. Cor- WARNING: If you do not fol- 4. Check all joints fr
Summary of the content on the page No. 11
OFF HI OWNER’S MANUAL Note: If pilot goes out, repeat steps THERMOSTAT OPERATING 3 through 7. This heater has a safety CONTROL HEATER interlock system. Wait one (1) minute OPERATION before lighting pilot again. Continued 8. Turn control knob counterclockwise The thermostatic control used on these LIGHTING to desired heating level. The C-clockwise models differs from standard thermo- INSTRUCTIONS main burner should light. Set control stats. Standard thermostats simply turn knob to any heat level
Summary of the content on the page No. 12
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER CLEANING BURNER INSPECTING NOTICE: Do not mistake orange PILOT AIR INLET HOLE flames with yellow tipping. Dust BURNER or other fine particles enter the We recommend that you clean the unit every Check pilot flame pattern and burner flame heater and burn causing brief 2,500 hours of operation or every three months. pattern often. patches of orange flame. We also recommend that you keep the burner If burner flame pattern is incorrect, as shown PILO
Summary of the content on the page No. 13
OWNER’S MANUAL TROUBLESHOOTING WARNING: Turn off heater CAUTION: Never use a wire, Note: For additional help, visit DESA and let cool before servicing. needle, or similar object to clean International’s technical service web site Only a qualified service person ODS/pilot. This can damage ODS/ at www.desatech.com. should service and repair pilot unit. heater. Note: All troubleshooting items are listed in order of operation. POSSIBLE CAUSE REMEDY OBSERVED PROBLEM 1. Ignitor cable pinched or wet 1
Summary of the content on the page No. 14
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice is clogged 1. Clean burner orifice (see Cleaning and Maintenance, page 12) or replace burner orifice 2. Burner orifice diameter is too small 2. Replace burner orifice 3. Inlet gas pressure is too low 3. Contact local natural gas company Delayed ignition of burner 1. Manifold pressure is too low 1. Contact local natural g
Summary of the content on the page No. 15
OWNER’S MANUAL TROUBLESHOOTING 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 neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette
Summary of the content on the page No. 16
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER TECHNICAL ACCESSORY REPLACEMENT Purchase these heater accessories from your SERVICE PARTS local dealer. If they cannot supply this ac- You may have further questions about in- Note: Use only original replacement parts. cessories, either contact your nearest Parts stallation, operation, or troubleshooting. If This will protect your warranty coverage for Central (see page 17) or call DESA so, contact DESA International’s Technical parts replaced un
Summary of the content on the page No. 17
OWNER’S MANUAL These Parts Centrals are privately-owned businesses. They have agreed to support our PARTS CENTRAL customer’s needs by providing original replacement parts and accessories. Baltimore Electric Washer Equipment Co. Dayton Hardware 1348 Dixwell Avenue 1715 Main Street P.O. Box 275 Hamden, CT 06514-0322 Kansas City, MO 64108-2195 North Dayton Station 1-800-397-7553 KS, MO, AR Dayton, OH 45404-0275 203-248-7553 816-842-3911 All States Parts Department www.washerparts.com 937-258-3721 O
Summary of the content on the page No. 18
CGN10TA and CGN10TLA VENT-FREE NATURAL GAS HEATER ILLUSTRATED 22 21 PARTS BREAKDOWN 20 CGN10TA 10 CGN10TLA 14 16 13 19 23 12 24 10 18 4 11 14 15 7 9 6 3 5 17 8 2 1 12-1 12-2 ODS/PILOT 104267 18
Summary of the content on the page No. 19
OWNER’S MANUAL This list contains replaceable parts used in your heater. When ordering parts, follow the PARTS LIST instructions listed under Replacement Parts on page 16 of this manual. CGN10TA CGN10TLA KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 099467-02 Front Panel Assembly (CGN10TA) 1 099467-07 Front Panel Assembly (CGN10TLA) 1 3 099318-04 Grill Guard 1 4 101108-01 Grill Guard Clip 2 5 102017-02 Bottom Glass Retainer 1 6 098260-11 Glass Panel 1 7 098532-06AA Top G
Summary of the content on the page No. 20
WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No. Date Purchased 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 standard written warranty. We make no other warranty, expressed or implied. LIMITED WARRANTY COMFORT GLOW VENT-FREE RESIDENTIAL GAS HEATERS DESA International warrants this product to be free from defects in materials and components for
