Desa GVB35N - Manuals - manualsarea.com

Page 2 - CONTENTS; SECTION; Determining Fresh-Air Flow for Heater Location

2 100353 CONTENTS SECTION PAGE Safety Information ......................................................................... 3 Product Identification .................................................................... 5 Local Codes .......................................................................

Page 3 - Continued; WARNINGS; Carbon monoxide poisoning may lead to death!; Early signs of carbon monoxide poisoning; , pages 16 through 19 for complete information.

3 100353 SAFETY INFORMATION Continued WARNINGS IMPORTANT: Read this owner’s manual carefully and completely be-fore trying to assemble, operate, or service this heater. Improper use ofthis heater can cause serious injury or death from burns, fire, explosion,electrical shock, and carbon monoxide pois...

Page 4 - Right Side: 12 inches

4 100353 SAFETY INFORMATION Continued WARNINGS Continued 6. Provide the following minimum heater clearances from combustibles (as viewed from the front of heater): Front: 48 inches Back: 6 inches Top: 53 inches Right Side: 12 inches Left Side: 6 inches 7. Do not run heater • where flammable liquids ...

Page 5 - PRODUCT

5 100353 ControlKnob Draft HoodOutlet forVentingSystem Figure 2 - Vented Natural Gas Heater, Rear View Figure 1 - Vented Natural Gas Heater Lower FrontAccess Panel IgnitorButton ControlValve PRODUCT IDENTIFICATION

Page 6 - dealer where you bought heater.; Piezo Ignition System; CHECK GAS TYPE; Before installing heater, make sure you have all items below.; WARNING

6 100353 Install and use heater with care. Follow all local codes. In the absence of localcodes, use the latest edition of the following: • National Fuel Gas Code ANSI Z223.1, also known as NFPA 54 *• National Electrical Code ANSI/NFPA 70 *• National Standard of Canada CAN1-B149 ** *Available from: ...

Page 7 - For convenience and efficiency, install heater; Figure 3 - Heater Clearances

7 100353 INSTALLING HEATER Continued LOCATING HEATER WARNING Maintain the minimum clearances shown in Figure 3,below. If you can, provide greater clearances. WARNING Never install the heater • in a mobile home or a recreational vehicle.• where curtains, furniture, clothing, or other flammable object...

Page 8 - Venting/chimney materials are not supplied with heater.; VENTING HEATER; INSTALLING

8 100353 Note: Venting/chimney materials are not supplied with heater. VENTING HEATER INSTALLING HEATER Continued WARNING A qualified service person must install the venting systemfor this heater. If venting system is not properly installedand maintained, the vent safety shut-off system will pre-ven...

Page 9 - Do not vent heater in any of the following ways (see Figure 4).

9 100353 INSTALLING HEATER Continued VENTING HEATER (continued) WARNING Do not vent heater in any of the following ways (see Figure 4). Heater must be vented to the out-doors. Never vent heater to anotherroom or inside a building. The vertical section of vent pipe mustextend at least two feet above ...

Page 10 - Prefabricated or Masonry All-Fuel Chimney -; This is a masonry chimney or a; Figure 5 - Typical Construction of Venting Systems

10 100353 VENTING HEATER (continued) INSTALLING HEATER Continued Proper Size Vent To safely vent heater, the vent connector pipe must be the same diameter as the drafthood outlet on the rear of the heater. Pipe that is too small can cause flue gas to spillfrom the heater. Fasten vent connector to th...

Page 11 - Figure 6 - Connecting Heater to Utility Gas Line; CAUTION; If the supply line branches

11 100353 INSTALLING HEATER Continued CONNECTING TO GAS SUPPLY WARNING A qualified service person must connect heater to gassupply. Follow all local codes. IMPORTANT: Check gas line pressure at gas meter before connecting heater to gas line. Gas line pressure must be no greater than 14 inches of wat...

Page 12 - Use two pipe wrenches when connecting gas piping to gas control; Figure 7 - Gas Connection

12 100353 Installation must include a manual shutoff valve, ground joint union, plugged 1/8"NPT tap, and a sediment trap. Locate NPT tap within reach for test gauge hook up.NPT tap must be upstream from heater (see Figure 7). Apply pipe joint sealant lightly to male threads. This will prevent ex...

Page 13 - Test Pressures In Excess of 1/2 PSIG; pipe. Pressures in excess of 1/2 PSIG will damage heater regulator.; Test Pressures Equal To or Less Than 1/2 PSIG; main gas valve located on or near gas meter.; Pressure Testing Heater Gas Connections; internal joints for leaks.; Figure 8 - Manual Shutoff Valve

13 100353 INSTALLING HEATER Continued CHECKING GAS CONNECTIONS Pressure Testing Gas Supply Piping System Test Pressures In Excess of 1/2 PSIG 1. Disconnect heater and its individual manual shutoff valve from gas supply pipe. Pressures in excess of 1/2 PSIG will damage heater regulator. 2. Cap off op...

Page 14 - Locate the glass panel package inside the back of the heater.; Figure 9 - Removing Lower Front Access Panel; Glass panels may have sharp edges. Handle with care.

14 100353 INSTALLING HEATER Continued INSTALLING GLASS PANEL 1. Locate the glass panel package inside the back of the heater. CAUTION Before installing glass panels, inspect the edges. If younotice any chips or cracks, do not install. If the surfaceon either side is deeply scratched, do not install....

Page 15 - all the way to the left side.

15 100353 INSTALLING HEATER Continued 2 1 GlassPanel Lower GlassRetainingChannel Figure 11 - Inserting Top Edge of Glass Panel into Upper Glass Retaining Channel 2 1 GlassPanel Lower GlassRetainingChannel Upper GlassRetainingChannel Lower FrontAccess Area Figure 12 - Inserting Glass into Lower Retai...

Page 17 - NOTICE; Ventilating Confined; Follow the steps below to see if enough fresh air is available.; Figure 13 - Checking for Draft Spillage; This shows there is enough fresh air in area for

17 100353 FRESH AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Example 1: Locating Heater in Unconfined (Open) Area NOTICE An unconfined area has a minimum air volume of 50cubic feet for each 1000 BTU/Hr input rating of allappliances in the area (cubic fe...

Page 18 - Figure 14 - Ventilation Air from Outdoors; This is a hazardous situation. Draft hood spillage re-; DANGER; Providing Permanent Fresh-Air Ventilation; IMPORTANT

18 100353 FRESH AIR FOR COMBUSTION AND VENTILATION Continued Figure 14 - Ventilation Air from Outdoors Draft Hood Spillage: This is a hazardous situation. Draft hood spillage re- leases poisonous carbon monoxide gas into your home. DANGER Carbon monoxide poisoning may lead to death! If draft hood sp...

Page 19 - Ventilating Confined Area; This fresh air would come from an adjoining open area or outdoors.; Figure 15 - Ventilation Air from Inside Building

19 100353 FRESH AIR FOR COMBUSTION AND VENTILATION Continued Example 2: Locating Heater in Confined (Closed) Area NOTICE A confined area has an air volume of less than 50 cubicfeet for each 1000 BTU/Hr input rating of all appliancesin the area (cubic feet equals length x width x height ofarea). Incl...

Page 20 - pilot, follow these instructions exactly.; FOR YOUR SAFETY READ BEFORE LIGHTING; Make sure manual shutoff valve is fully open.; LIGHTING INSTRUCTIONS

20 100353 OPERATING HEATER 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 and will settle ...

Page 21 - OPERATING; Figure 17 - Viewing Pilot

21 100353 5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 20. If you don’t smell gas, go to the next step. 6. Turn control knob clockwise Clockwise to the PILOT position. Full...

Page 22 - MANUAL LIGHTING PROCEDURE; Remove lower front access panel on heater.; Shutting Off Heater

22 100353 MANUAL LIGHTING PROCEDURE 1. Remove lower front access panel on heater. 2. Locate pilot. Pilot is attached to the front of burner. 3. Follow steps 1 through 6 under Lighting Instructions, pages 20 and 21. 4. With control knob depressed, strike match. Hold match to pilot until pilot lights....

Page 23 - Check pilot flame pattern and burner flame pattern often.; PILOT FLAME PATTERN; INSPECTING; Figure 18 - Correct Pilot; BURNER FLAME PATTERN; To view burner flame, look through front glass of heater.

23 100353 Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 18 shows a correct pilot flame pattern. Figure 19 shows an incorrect pilotflame pattern. The incorrect pilot flame is not touching the thermocouple. This willprevent the thermocouple from getting hot, caus...

Page 24 - Figure 21 - Incorrect Burner Flame Patterns; If burner flame pattern is incorrect, as shown in Figure 21

24 100353 INSPECTING PILOT AND BURNER FLAME Continued Sharp BlueFlame HighYellowFlame FlameLiftingOff ofBurner Figure 21 - Incorrect Burner Flame Patterns Figure 20 - Correct Burner Flame Pattern If burner flame pattern is incorrect, as shown in Figure 21 • turn heater off (see To Turn Off Gas to Ap...

Page 25 - Turn off heater and let cool before cleaning or servicing.; CLEANING; Air Passageways; • Use a vacuum cleaner or pressurized air to clean.; Exterior; cabinet to remove dust.

25 100353 WARNING Turn off heater and let cool before cleaning or servicing. WARNING Keep heater clear and free from combustible materials,gasoline, and other flammable vapors and liquids. CAUTION You must keep control areas, burner, and circulating airpassageways of heater clean. Inspect these area...

Page 26 - SHOOTING; REMEDY

26 100353 TROUBLE- SHOOTING Note: All troubleshootingitems are listed in order ofoperation. OBSERVEDPROBLEM When ignitor button ispressed, there is nospark at pilot. When ignitor button ispressed, there is sparkat pilot but no igni-tion. POSSIBLECAUSE 1. Incorrect spark gap.2. Ignitor electrode posi...

Page 30 - Figure 22 - Removing Control Valve and Burner Tube

30 100353 SERVICE PROCEDURES Removing Control Valveand Burner Tube 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (seeFigure 22). 4. Remove pilot gas line from control valve (seeFigure 22). 5. Disconnect wire connec- tors...

Page 31 - Removing Burner

31 100353 SERVICE PROCEDURES Continued Removing Burner 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (seeFigure 23). 4. Remove orifice holder from burner (see Figure23). 5. Remove pilot burner bracket nuts and removepilo...

Page 32 - Changing Burner Orifice

32 100353 SERVICE PROCEDURES Continued Changing Burner Orifice 1. Shut off gas supply to heater. 2. Remove lower front access panel on heater. 3. Disconnect burner tube from orifice holder (seeFigure 24). 4. Remove orifice holder from burner (see Figure24). 5. Use socket or open-end wrench to remove...

Page 33 - SPECIFICATIONS; When gas pressure is too low; SERVICE; Model

33 100353 TECHNICAL SERVICE You may have further questions about installation, operation, or troubleshooting.If so, contact DESA International’s Technical Service Department at 1-800-323-5190. SPECIFICATIONS Note: These heaters are certified for elevations of 0-4500 feet above sea level. For elevati...

Page 34 - age for parts replaced under warranty.; Parts Under Warranty; Parts Not Under Warranty; When calling DESA International, have ready; ORDERING

34 100353 Note: Use only original replacement parts. This will protect your warranty cover- age for parts replaced under warranty. Parts Under Warranty Contact Vanguard dealer or call DESA International’s Technical Service Depart-ment at 1-800-323-5190. When calling DESA International, have ready • ...

Page 35 - ACCESSORIES; BLOWER KIT - PART NUMBER GA6010

35 100353 ACCESSORIES BLOWER KIT - PART NUMBER GA6010 For all models. Provides better heat distribution.Makes heater more efficient. Complete installationand operating instructions provided with blower. Purchase these heater accessories from your local dealer. If they can not supplythese accessories...

Page 39 - NOTES

39 100353 NOTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ____________________...

Page 40 - WARRANTY INFORMATION; DESA

100353-01REV. C6/94 LIMITED WARRANTY VANGUARD VENTED NATURAL GAS HEATERS LIMITED ONE YEAR WARRANTY This DESA product is warranted to the original purchaser to be free from defect in material and workmanship under normal use andmaintenance for a period of one year from the date of installation whethe...