Desa CGN18C manual

Save this manual for future reference. BLUE-FLAME VENT -FREE NA TURAL GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL Model: RN30C and CGN18C WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. — Do not store or use gasoline or oth[...]

2 101806 CONTENTS SECTION PAGE Safety Information ......................................................................... 2 Product Identification .................................................................... 4 Local Codes ................................................................................... 4 Unpacking ......................[...]

3 101806 SAFETY INFORMA TION Continued WARNING ICON G 001 W ARNINGS 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. If you smell gas • shut off gas supply • do not tr[...]

4 101806 PRODUCT IDENTIFICA TION Figure 1 - Vent-Free Natural Gas Heater Ignitor Button Control Knob Heater Cabinet Front Panel Heat Shield (RN30C) or Glass Panel (CGN18C) Grill Guard LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Fuel Gas Code ANSI Z223.1, als[...]

5 101806 AIR FOR COMBUSTION AND VENTILA TION WARNING ICON G001 W ARNING This heater shall not be installed in a confined space unless provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. Today’s homes are built more [...]

6 101806 AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING 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[...]

7 101806 Figure 2 - Ventilation Air from Inside Building Or Remove Door into Adjoining Room, Option 3 Ventilation Grills Into Adjoining Room, Option 2 12" 12" Ventilation Grills into Adjoining Room, Option 1 Continued AIR FOR COMBUSTION AND VENTILA TION Continued WARNING ICON G 001 W ARNING If the area in which the heater may be operated [...]

8 101806 Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Figure 3 - Ventilation Air from Outdoors AIR FOR COMBUSTION AND VENTILA TION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12&q[...]

9 101806 INST ALLING TO W ALL Continued CHECK GAS TYPE Use only natural gas. If your gas supply is not natural, do not install heater. Call dealer where you bought heater for proper type heater. INSTALLATION ITEMS Before installing heater, make sure you have the items listed below: • piping (check local codes) • sealant (resistant to propane/LP[...]

10 101806 WARNING ICON G 001 CAUTION If you install the heater in a home garage • heater pilot and burner must be at least 18 inches above floor • locate heater where moving vehicle will not hit it INST ALLING T O W ALL Continued For convenience and efficiency, install heater • where there is easy access for operation, inspection, and service[...]

11 101806 INSTALLING HEATER TO WALL Mounting Bracket The mounting bracket is located on back panel of heater. It has been taped there for shipping. Remove mounting bracket from back panel. Figure 5 - Mounting Bracket Location Mounting Bracket GRH/OV 003B FRONT PANEL REMOVAL G H Figure 6 - Removing Front Panel Of Heater Removing Front Panel Of Heate[...]

12 101806 Marking Screw Locations 1. Tape mounting bracket to wall where heater will be located. Make sure mount- ing bracket is level. Attaching Mounting Bracket To Wall Note: Wall anchors, mounting screws, and spacers are in hardware package. The hardware package is provided with heater. Attaching to wall stud method For attaching mounting bracke[...]

13 101806 4. For thin walls (1/2" or less), insert red key into wall anchor. Push red key to “pop” open anchor wings. IMPORTANT: Do not hammer key! For thick walls (over 1/2" thick) or solid walls, do not pop open wings. Figure 11 - Installing Bottom Mounting Screws Figure 9 - Popping Open Anchor Wings For Thin Walls 5. Place mounting[...]

14 101806 CONNECTING T O GAS SUPPL Y NOTICE A qualified service person must connect heater to gas supply. Follow all local codes. WARNING ICON G 001 W ARNING Never connect heater to private (non-utility) gas wells. This gas is commonly known as wellhead gas. IMPORTANT: Check gas line pressure before connecting heater to gas line. Gas line pressure [...]

15 101806 IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings. Pressure Regulator Tee Joint Reducer Bushing to 1/8" NPT 1/8" NPT Plug Tap Test Gauge Connection * Sediment Trap Tee Joint Pipe Nipple Cap Heater Cabinet 1/2" NPT Pipe Nipple Figure 12 - Gas Connection Note: Burner bracket not s[...]

16 101806 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 once. Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 13). 2. Pressurize supply piping system by either using compressed air or opening main gas[...]

17 101806 OFF HIGH PILOT LOW IGNITOR OPERA TING HEA TER FOR YOUR SAFETY READ BEFORE LIGHTING A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air [...]

18 101806 7. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Note: If pilot goes out, repeat steps 3 through 7. 8. Turn control knob counterclockwise C-clockwise to the LOW position. The main burner should light. Set control knob to any heat level between HIGH and LOW. To turn control knob f[...]

19 101806 T O TURN OFF GAS T O APPLIANCE Figure 18 - Incorrect Pilot Flame Pattern Pilot Burner Thermocouple INSPECTING BURNER Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 17 shows a correct pilot flame pattern. Figure 18 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the th[...]

20 101806 If pilot flame pattern is incorrect, as shown in Figure 18 • turn heater off (see To Turn Off Gas to Appliance , page 19) • see Troubleshooting , pages 21 through 24 BURNER FLAME PATTERN Figure 19 shows a correct burner flame pattern. Figure 20 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow ti[...]

21 101806 CLEANING AND MAINTENANCE WARNING ICON G 001 W ARNING Turn off heater and let cool before cleaning. WARNING ICON G 001 CAUTION You must keep control areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more [...]

22 101806 TROUBLE- SHOOTING Continued 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 Burner does not light after ODS/pilot is lit POSSIBLE CAUSE 1. Gas supply turned off or manual shutoff valve closed 2. Control knob not in PILOT position[...]

23 101806 TROUBLE- SHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS/pilot is lit (continued from page 22) Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burner is lit POSSIBLE CAUSE 2. Burner [...]

24 101806 WARNING ICON G 001 W ARNING 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, c[...]

25 101806 TECHNICAL SER VICE You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323- 5190. SPECIFICA TIONS When gas pressure is too low • pilot will not stay lit • burner will have delayed ignition • heater will not produce specified hea[...]

26 101806 Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replacement part(s), either contact your nearest Parts Central (see below) or call DESA International’s Technical Service [...]

27 101806 ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see page 26) or call DESA International’s Parts Department at 1-800-972-7879 for referral information. You can also write to the address listed on the back page of this manual to rece[...]

28 101806 1 2 3 4 5 6 7 8 8 9 10 11 12 13 14 15 17 19 21 22 23 24 20 27 26 18 28 16 25 10-1 10-2 ODS/Pilot RN30C[...]

29 101806 RN30C P ARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098345-01AC Front Panel 1 3 098197-04 Grill Guard 1 4 098342-01 Clip, Grill Guard 2 5[...]

30 101806 12-1 12-2 ODS/Pilot 1 2 3 4 5 6 7 8 9 10 10 11 12 13 14 15 16 17 19 27 21 23 24 25 26 22 29 28 20 30 18 CGN18C[...]

31 101806 CGN18C P ARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 098304-01 Screw, #10 x 3/8" 2 2 098742-03 Front Panel 1 3 098197-03 Grill Guard 1 4 098342-01 Grill Guard Clip 2 5 0[...]

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. W ARRANTY INFORMA TION 101806-0[...]