Instruction/ maintenance manual of the product GVC35PA Desa
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Save this manual for future reference. ® VENTED PROP ANE GAS HEA TERS OWNER’S OPERA TION AND INST ALLA TION MANUAL WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per- sonal injury, or loss of life.
2 100748 CONTENTS SECTION PAGE Safety Information ......................................................................... 3 Product Identification .................................................................... 5 Local Codes ...................
3 100748 SAFETY INFORMA TION W ARNINGS IMPORTANT: Read this owner’s manual carefully and completely be- fore trying to assemble, operate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
4 100748 SAFETY INFORMA TION Continued W ARNINGS Continued 7. 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 8.
5 100748 PRODUCT IDENTIFICA TION Figure 1 - Vented Propane Gas Heater Lower Front Access Panel Ignitor Button Control Knob Draft Hood Outlet for Venting System Blower (on models equipped with blower) .
6 100748 Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of the following: • National Fuel Gas Code ANSI Z223.
7 100748 INST ALLING HEA TER Continued LOCATING HEATER 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. For convenience and efficiency, install heater • where there is easy access for operation, inspection, and service.
8 100748 Note: Venting/chimney materials are not supplied with heater. VENTING HEATER INST ALLING HEA TER Continued W ARNING When venting this heater, follow the safety information listed below. • Never vent heater to another room or inside a build- ing.
9 100748 INST ALLING HEA TER Continued VENTING HEATER (continued) W ARNING Do not vent heater in any of the following ways (see Figure 4). Heater must be vented to the out- doors.
10 100748 VENTING HEATER (continued) INST ALLING HEA TER Continued Proper Size Vent To safely vent heater, the vent connector pipe must be the same diameter as the draft hood outlet on the rear of the heater. Pipe that is too small can cause flue gas to spill from the heater.
11 100748 INST ALLING HEA TER Continued CONNECTING TO GAS SUPPLY BULK PROPANE TANK VENT External Regulator Vent Pointing Down Figure 6 - External Regulator with Vent Pointing Down The installer must supply an external regulator. The external regulator will reduce incoming gas pressure.
12 100748 Figure 7 - Gas Connection * An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories , page 31.
13 100748 INST ALLING HEA TER Continued CHECKING GAS CONNECTIONS Figure 8 - Manual Shutoff Valve P O On Position Off Position CAUTION Make sure external regulator has been installed be- tween propane supply and heater. See guidelines under Connecting to Gas Supply , page 11.
14 100748 FRESH AIR FOR COMBUSTION AND VENTILA TION W ARNING This heater must have fresh air for proper operation. If not, poor fuel combustion and improper venting of flue gases will result. Carbon monoxide poisoning from backed-up flue gases could occur.
15 100748 FRESH AIR FOR COMBUSTION AND VENTILA TION 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 50 cubic feet for each 1000 BTU/Hr input rating of all appliances in the area (cubic feet equals length x width x height of area).
16 100748 Figure 10 - 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 spillage occurs, check for blocked flue connectors, vent pipes, and chimneys.
17 100748 Example 2: Locating Heater in Confined (Closed) Area NOTICE A confined area has an air volume of less than 50 cubic feet for each 1000 BTU/Hr input rating of all appliances in the area (cubic feet equals length x width x height of area). Include adjoining rooms only if there are no doors between the rooms.
18 100748 OPERA TING HEA TER 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 on the floor.
19 100748 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 18. If you don’t smell gas, go to the next step. 6. Remove lower front access panel on heater.
20 100748 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 7 under Lighting Instructions , pages 18 and 19. 4. With control knob depressed, strike match.
21 100748 INSPECTING PILOT AND BURNER FLAME Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 14 shows a correct pilot flame pattern. Figure 15 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple.
22 100748 Figure 16 - Correct Burner Flame Pattern Sharp Blue Flame High Yellow Flame Flame Lifting Off of Burner Figure 17 - Incorrect Burner Flame Patterns If burner flame pattern is incorrect, as shown in Figure 17 • turn heater off (see To Turn Off Gas to Appliance , page 20) • see Troubleshooting , pages 24 through 27.
23 100748 W ARNING Turn off heater and let cool before cleaning or servicing. W ARNING Keep heater clear and free from combustible materials, gasoline, and other flammable vapors and liquids. CAUTION You must keep control areas, burner, and circulating air passageways of heater clean.
24 100748 TROUBLE- SHOOTING Note: All troubleshooting items are listed in order of operation. W ARNING Turn off and unplug heater and let cool before servicing. Unless you need gas supply for testing, shut off manual shutoff valve before servicing. Only a qualified service person should service and repair heater and venting system.
25 100748 TROUBLE- SHOOTING Continued REMEDY 1. Fully open manual shut-off valve. 2. Press in control knob fully. 3. After pilot lights, keep control knob pressed in 30 seconds. 4 . Wait one minute for safety interlock system to reset. Repeat ignition.
26 100748 TROUBLE- SHOOTING Continued OBSERVED PROBLEM Burner backfiring during combustion. Yellow flame during burner combustion. Slight smoke or odor during initial operation. Burner fails to respond to thermo- stat. Heater produces a whistling noise when burner is lit.
27 100748 TROUBLE- SHOOTING Continued 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.
28 100748 SER VICE PROCEDURES W ARNING Turn off and unplug heater and let cool before servicing. Unless you need gas supply for testing, shut off manual shutoff valve before servicing. Only a qualified service per- son should service and repair heater and venting system.
29 100748 SER VICE PROCEDURES Continued SER VICE 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 (see Figure 19). 4. Remove orifice holder from burner (see Figure 19).
30 100748 SER VICE PROCEDURES Continued SER VICE 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 (see Figure 20). 4. Remove orifice holder from burner (see Figure 20).
31 100748 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.
32 100748 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.
33 100748 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Ordering Replacement Parts on page 32 of this manual. ILLUSTRA TED P ARTS LIST Cabinet Assembly 1 2 5 3 4 5 6 5 7 8 PART NUMBER FOR KEY NO.
34 100748 ILLUSTRA TED P ARTS LIST Burner Assembly 11 10 8 19 18 17 16 15 14 12 13 9 7 6 5 4 3 2 1 35 Model Only 6 50 and 65 Models 11 20 21 17 16 4 24 23 26 25 22 27 7.
35 100748 P ARTS LIST Burner Assembly This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Ordering Replacement Parts on page 32 of this manual. PART NUMBER FOR KEY NO. GVC65PA GVC50PA GVC35PA DESCRIPTION QTY.
LIMITED WARRANTY VANGUARD VENTED PROPANE 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 and maintenance for a period of one year from the date of installation whether or not actual use begins on that date.
An important point after buying a device Desa GVC35PA (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa GVC35PA yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa GVC35PA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa GVC35PA you will learn all the available features of the product, as well as information on its operation. The information that you get Desa GVC35PA will certainly help you make a decision on the purchase.
If you already are a holder of Desa GVC35PA, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa GVC35PA.
However, one of the most important roles played by the user manual is to help in solving problems with Desa GVC35PA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa GVC35PA along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
