Vanguard Heating VGN30 User Manual

VENT-FREE NATURAL GAS GARAGE HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Model: VGN30

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 other

flammable vapors and liquids in the vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• 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.

— Installation and service must be per-

formed by a qualified installer, service agency, or the gas supplier.

W ARNING: Improper installation,

adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency, or the gas supplier.

Save this manual for future reference.

CONTENTS

SECTION PAGE

Safety Information.........................................................................2

Product Identification .................................................................... 4

Local Codes ................................................................................... 4

Unpacking......................................................................................4

Product Features ............................................................................ 4

Installing To Wall..........................................................................5

Connecting To Gas Supply............................................................10

Checking Gas Connections............................................................11

Operating Heater ...........................................................................13

Inspecting Burner ..........................................................................15

Cleaning And Maintenance ........................................................... 17

Troubleshooting.............................................................................17

Technical Service .......................................................................... 21

Specifications ................................................................................21

Service Hints .................................................................................21

Replacement Parts ......................................................................... 22

Accessories .................................................................................... 23

Illustrated Parts List.......................................................................24, 25

Warranty Information .................................................................... Back Cover

SAFETY

INFORMATION

WARNINGS

WARNING ICON G 001

IMPORTANT: Read this Owner’s Manual carefully and completely before 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.

DANGER

WARNING ICON G 001

Carbon monoxide poisoning may lead to death!

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning

resemble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, persons with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.

Natural Gas: Natural gas is odorless. An odor-making agent is added to natural gas. The odor helps you detect a natural gas leak. However, the odor added to natural gas can fade. Natural gas may be present even though no odor exits.

Make certain you read and understand all Warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.

Safety Information continues on next page

SAFETY

WARNING ICON G 001

WARNINGS

Continued

INFORMATION

Continued

1. Use only natural gas. Do not convert heater to use different fuel type.

2. 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.

3. Never install the heater

• in sleeping quarters, a mobile home, or a recreational vehicle

• where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the front, top, or sides of the heater

• as a fireplace insert

• in high traffic areas

• in windy or drafty areas

4. Open window or garage door to admit fresh, outside air when using heater. Open window one (1) or two (2) inches. When used without fresh, outside air, heater may give off carbon monoxide gas.

5. Never run heater in small, closed room.

6. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.

7. Do not run heater

• where flammable liquids or vapors are used or stored

• under dusty conditions

8. Never place any objects on the heater.

9. Surface of heater becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut-down. Allow surface to cool before touching.

10.Make sure grill guard is in place before running heater.

11.Do not alter heater or its controls. Any change may create a safety hazard.

12.Do not use heater if any part of heater has been under water.

13.Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater.

14. Do not operate heater above elevations of 4,500 feet.

PRODUCT

IDENTIFICATION

Front Panel

Ignitor Button Control Knob

Grill Guard

Heat Shield

Heater Cabinet

Figure 1 - Vent-Free Natural Gas Garage Heater

LOCAL CODES

UNPACKING

PRODUCT

FEATURES

Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Gas Code ANSI Z223.1, also known as NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

1. Remove heater from carton.

2. Remove all protective packaging applied to heater for shipment.

3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

Safety Device

This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS). The ODS/pilot is a required feature for vent-free garage heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.

Piezo Ignition System

This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to light heater.

INSTALLING

TO WALL

NOTICE

A qualified service person must install heater. Follow all local codes.

CHECK GAS TYPE

Use only natural gas. If your gas supply is not natural gas, do not install heater. Call dealer where you bought heater for proper type heater.

INSTALLATION ITEMS

Before installing the heater, make sure you have the items listed below.

• piping (check local codes)

• sealant (resistant to propane gas)

• manual shutoff valve *

• ground joint union

* 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 23.

• test gauge connection * (see Figure 10, page 11)

• sediment trap

• tee joint

• pipe wrench

LOCATING HEATER

This heater is designed to be mounted on a wall.

WARNING

WARNING ICON G 001

Maintain the minimum clearances shown in Figure 2 (page 6). If you can, provide greater clearances from floor, ceiling, and joining wall.

WARNING ICON G 001

WARNING

Never install the heater

• in sleeping quarters, a mobile home, or a recreational vehicle

• where curtains, furniture, clothing, or other flammable objects

are less than 36 inches from the front, top, or sides of the heater

• as a fireplace insert

• in high traffic areas

• in windy or drafty areas

NOTICE

Do not install or operate heater in areas where impurities in the air (such as tobacco smoke) exist. Particles from these impurities may discolor walls.

Continued

CAUTION

WARNING ICON G 001

When installing, 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

• where strong wind gusts from an open door or garage door can not blow

directly into heater.

An optional fan kit is available from your dealer. See ACCESSORIES, page 23. If planning to use fan, locate heater near an electrical outlet.

CEILING

36"

Minimum

Minimum From Sides Of Heater

Left Side

Right Side

16 3/4"

Minimum To Top Surface of

FLOOR

CLEARANCE-Garage heater

Figure 2 - Mounting Clearances As Viewed From Front of Heater

GRH/PV 009A

Combustible Material

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.

Mounting Bracket

Figure 3 - Mounting Bracket Location

Removing Front Panel Of Heater

1. Remove two screws near bottom corners of front panel.

2. Lift straight up on grill guard until it stops. Grill guard will slide up about 1/4".

3. Pull bottom of front panel forward, then down.

4. Remove cardboard packing from grill and heat shield.

Figure 4 - Removing Front Panel Of Heater

Methods For Attaching Mounting Bracket To Wall

Only use last hole on each end of mounting bracket to attach bracket to wall. These two holes are 16 inches apart from their centers. Attach mounting bracket to wall in one of two ways.

1. Attaching to wall stud

2. Attaching to wall anchor

Attaching to wall stud This method provides the strongest hold. Insert mounting

screws through mounting bracket and into wall studs.

Attaching to wall anchor This method allows you to attach mounting bracket to

hollow walls (wall areas between studs) or to solid walls (concrete or masonry).

Decide which method better suits your needs. Either method will provide a secure hold for the mounting bracket.

Marking Screw Locations

1. Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level.

WARNING

WARNING ICON G 001

Maintain minimum clearances shown in Figure 5. If you can, provide greater clearances from floor and joining wall.

2. Mark screw locations on wall (see Figure 5).

Note:

Only mark last hole on each end of mounting bracket. Insert mounting

screws through these holes only.

3. Remove tape and mounting bracket from wall.

11"

Min.

Only Insert Mounting

Screws Through Last

Adjoining Wall

Figure 5 - Mounting Bracket Clearances

16"

Hole On Each End

Floor

32 1/2"

18 3/4"

Min.

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 bracket to wall studs

1. Drill holes at marked locations using 9/64" drill bit.

2. Place mounting bracket onto wall. Line up last hole on each end of bracket with holes drilled in wall.

3. Insert mounting screws through bracket and into wall studs.

4. Tighten screws until mounting bracket is firmly fastened to wall studs.

Attaching to wall anchor method

For attaching mounting bracket to hollow walls (wall areas between studs) or solid walls (concrete or masonry)

1. Drill holes at marked locations using 5/16" drill bit. For solid walls (concrete or masonry), drill at least 1" deep.

2. Fold wall anchor as shown in Figure 6.

Figure 6 - Folding Anchor

3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall.

Continued

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 7 - Popping Open Anchor Wings For Thin Walls

5. Place mounting bracket onto wall. Line up last hole on each end of bracket with wall anchors.

6. Insert mounting screws through bracket and into wall anchors.

7. Tighten screws until mounting bracket is firmly fastened to wall.

Placing Heater On Mounting Bracket

1. Locate two horizontal slots on back panel of heater.

2. Place heater onto mounting bracket. Slide horizontal slots onto stand-out tabs on mounting bracket.

Horizontal Slots

Stand-Out Tab

Mounting Bracket (attached to wall)

Figure 8 - Mounting Heater Onto Mounting Bracket

Installing Bottom Mounting Screws

1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 9).

2. Mark screw locations on wall.

3. Remove heater from mounting bracket.

4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 thru 4 under Attaching To Wall Anchor Method, page 8. If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64" drill bit.

5. Replace heater onto mounting bracket.

6. Place spacers between bottom mounting holes and wall anchor or drilled hole.

7. Hold spacer in place with one hand. With other hand, insert mounting screw through bottom mounting hole and spacer. Place tip of screw in opening of wall anchor or drilled hole.

8. Tighten both screws until heater is firmly secured to wall. Do not over tighten.

Note:

Do not replace front panel at this time. Replace front panel after making

gas connections and checking for leaks (see pages 10-12).

Figure 9 - Installing Bottom Mounting Screws

CONNECTING

TO GAS

SUPPLY

NOTICE

A qualified service person must connect heater to gas supply. Follow all local codes.

WARNING

WARNING ICON G 001

Never connect heater to private (non-utility) gas wells. This gas is commonly known as well-head gas.

IMPORTANT:

line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.

Use only new, black iron or steel pipe. Copper tubing may be used in certain areas. Check your local codes. Use pipe of or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 10, page 11).

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in the pipe could result in clogged heater valves.

Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

Check gas line pressure before connecting heater to gas line. Gas

CAUTION

WARNING ICON G 001

/2" diameter

CAUTION

WARNING ICON G 001

Install sediment trap in supply line as shown in Figure 10. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

IMPORTANT:

and/or fittings.

1/2" NPT Pipe Nipple

Hold pressure regulator with wrench when connecting it to gas piping

Note:

Burner bracket

Pressure Regulator

not shown for clarity

CHECKING

GAS

CONNECTIONS

Heater Cabinet

Manual Shutoff Valve *

Test

Gauge

Connection *

Sediment

Trap

Tee Joint Reducer

Bushing to 1/8" NPT

1/8" NPT Plug Tap

Tee Joint Pipe

Nipple Cap

Ground Joint Union

From Gas Meter

(4" W.C. to 10.5" W.C. Pressure)

3" Minimum

Figure 10 - Gas Connection

WARNING

WARNING ICON G 001

Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.

WARNING

WARNING ICON G 001

Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once.

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

piping system. Pressures in excess of 1/2 PSIG will damage heater regulator.

2. Cap off open end of gas pipe where manual shutoff valve was connected.

3. Pressurize supply piping system by either using compressed air or

opening main gas valve located on or near gas meter.

Continued

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 11).

2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter.

3. Check all joints from gas meter to manual shutoff valve (see Figure 12). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

4. Correct all leaks at once.

PRESSURE TESTING HEATER GAS CONNECTIONS

1. Open manual shutoff valve (see Figure 11).

2. Open main gas valve located on or near gas meter.

3. Make sure control knob of heater is in the OFF position.

4. Check all joints from manual shutoff valve to control valve (see Figure 12). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see OPERATING HEATER, pages 13 thru 15). Check the rest of the internal joints for leaks.

7. Turn off heater (see TO TURN OFF GAS TO APPLIANCE, page 15).

8. Replace front panel.

Open

POSITION

Manual Shutoff Valve

Figure 11 - Manual Shutoff Valve

Gas Meter

Figure 12 - Checking Gas Joints

OFF

Closed

POSITION

Control Valve Location

Manual Shutoff Valve

OPERATING

FOR YOUR SAFETY READ BEFORE LIGHTING

HEATER

WARNING

WARNING ICON G 001

If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

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.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electric 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.

C. Use only your hand to push in or turn the gas control knob. Never use tools. If

the knob will not push in or turn by hand, don’t try to repair it, call a qualified service technician or gas supplier. Force or attempted repair may result in a fire or explosion.

D. Do not use this appliance if any part has been under water. Immediately call a

qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

LIGHTING INSTRUCTIONS

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.

Ignitor Button

IGNITOR

Clockwise

OFF

PILOT

Control Knob

HIGH

LOW

Figure 13 - Control Knob In The OFF Position

4. 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 13. If you don’t smell gas, go to the next step.

5. Press in control knob and turn counterclockwise to the PILOT position.

C-clockwise

Keep control knob pressed in for five (5) seconds (see Figure 13).

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 seconds. This will allow air to bleed from the gas system.

• If control knob does not pop up when released, contact a qualified service person or gas supplier for repairs.

6. With control knob pressed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of burner. The burner and pilot are located behind the heat shield. If needed, keep pressing ignitor button until pilot lights.

Note:

If pilot does not stay lit, refer to TROUBLESHOOTING, pages 17 thru

20. Also contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see MANUAL LIGHTING PROCEDURE, page 15.

Ignitor Electrode

Thermocouple

Pilot Burner

Pilot GRH/OV 007F

Figure 14 - Pilot

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 thru 7.

8. Turn control knob counterclockwise to the LOW position. The main

C-clockwise

burner should light. Set control knob to any heat level between HIGH and LOW. To turn control knob from LOW to a higher setting, press in the control knob and turn counterclockwise .

Note:

Both HIGH and LOW are locked positions. You must press in control

C-clockwise

knob before turning it from these positions.

CAUTION

WARNING ICON G 001

Do not try to adjust heating levels by using the manual shutoff valve.

Continued

TO TURN OFF GAS TO APPLIANCE

Shutting Off Heater

1. Turn control knob clockwise to the PILOT position.

2. Press in control knob and turn clockwise to the OFF position.

Clockwise

3. Turn off all electric power to the appliance if service is to be performed.

Shutting Off Burner Only (pilot stays lit)

1. Turn control knob clockwise to the PILOT position.

Clockwise

MANUAL LIGHTING PROCEDURE

1. Remove front panel (see Figure 3, page 7).

2. Follow steps 1 thru 5 under LIGHTING INSTRUCTIONS, pages 13 and 14.

3. With control knob pressed in, strike match. Hold match to pilot until pilot lights.

4. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob.

5. Replace front panel.

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 15 shows a correct pilot flame pattern. Figure 16 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

Thermocouple

Figure 15 - Correct Pilot Flame Pattern

Thermocouple

Pilot Burner

Figure 16 - Incorrect Pilot Flame Pattern

Continued

If pilot flame pattern is incorrect, as shown in Figure 16

• turn heater off (see TO TURN OFF GAS TO APPLIANCE, page 15)

• see TROUBLESHOOTING, pages 17 thru 20

BURNER FLAME PATTERN

Figure 17 shows a correct burner flame pattern. Figure 18 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the heat shield height.

WARNING

WARNING ICON G 001

If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. If burner flame pattern shows yellow tipping, follow instructions at bottom of this page.

NOTICE

Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.

CORRECT FLAME PATTERN

AT HIGH POSITION

Figure 17 - Correct Burner Flame Pattern

INCORRECT FLAME PATTERN

AT HIGH POSITION

Figure 18 - Incorrect Burner Flame Pattern

1/2 HEAT SHIELD HEIGHT

Yellow Tipping

1/2 HEAT SHIELD HEIGHT

If burner flame pattern is incorrect, as shown in Figure 18

• turn heater off (see TO TURN OFF GAS TO APPLIANCE, page 15)

• see TROUBLESHOOTING, pages 17 thru 20

CLEANING

WARNING ICON G 001

AND

MAINTENANCE

WARNING

WARNING ICON G 001

Turn off heater and let cool before cleaning.

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 frequent cleaning due to sawdust, cobwebs, etc.

ODS/PILOT AND BURNER

• Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean.

CABINET

Air Passageways

• Use a vacuum cleaner or pressurized air to clean.

Exterior

• Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust.

TROUBLE-

SHOOTING

Note: All troubleshooting items are listed in order of operation.

WARNING

WARNING ICON G 001

Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater.

CAUTION

WARNING ICON G 001

Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit.

OBSERVED PROBLEM

When ignitor button is pressed, there is no spark at ODS/pilot

POSSIBLE CAUSE

1. Ignitor electrode positioned wrong

2. Ignitor electrode broken

3. Ignitor electrode not connected to ignitor cable

4. Ignitor cable pinched or wet

5. Piezo ignitor nut is loose

6. Broken ignitor cable

7. Bad piezo ignitor

REMEDY

1. Replace ignitor

2. Replace ignitor

3. Reconnect ignitor cable

4. Free ignitor cable if pinched by any metal or tubing. Keep ignitor cable dry

5. Tighten nut holding piezo ignitor to heater cabinet. Nut is located inside heater cabinet at top

6. Replace ignitor cable

7. Replace piezo ignitor

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

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

1. Gas supply turned off or manual shutoff valve closed

2. Control knob not in PILOT position

3. Control knob not pressed in while in PILOT position

4. Air in gas lines when installed

5. ODS/pilot is clogged

6. Gas regulator setting is not correct

1. Control knob not fully pressed in

2. Control knob not pressed in long enough

3. Manual shutoff valve not fully open

4. Thermocouple connection loose at control valve

5. Pilot flame not touching thermocouple, which allows thermocouple to cool, causing pilot flame to go out. This problem could be caused by one or both of the following: A) Low gas pressure B) Dirty or partially clogged ODS/pilot

6. Thermocouple damaged

7. Control valve damaged

1. Turn on gas supply or open manual shutoff valve

2. Turn control knob to PILOT position

3. Press in control knob while in PILOT position

4. Continue holding down control knob. Repeat igniting operation until air is removed

5. Clean ODS/pilot (see CLEANING AND MAINTENANCE, page 17) or replace ODS/pilot assembly

6. Replace gas regulator

1. Press in control knob fully

2. After ODS/pilot lights, keep control knob pressed in 30 seconds

3. Fully open manual shutoff valve

4. Hand tighten until snug, then tighten 1/4 turn more

5. A) Contact local natural gas company

B) Clean ODS/pilot (see CLEANING AND MAINTENANCE, page 17) or replace ODS/pilot assembly

6. Replace thermocouple

7. Replace control valve

Burner does not light after ODS/pilot is lit

1. Burner orifice is clogged

1. Clean burner (see CLEANING AND MAINTENANCE, page 17) or replace burner orifice

ContinuedContinued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Burner does not light after ODS/pilot is lit

(continued from page

18)

Delayed ignition of burner

Burner backfiring during combustion

Yellow flame during burner combustion

2. Burner orifice diameter is too small

3. Inlet gas pressure is too low

1. Manifold pressure is too low

2. Burner orifice is clogged

1. Burner orifice is clogged or damaged

2. Burner damaged

3. Gas regulator defective

1. Not enough air

2. Gas regulator defective

2. Replace burner orifice

3. Contact local natural gas company

1. Contact local natural gas company

2. Clean burner (see CLEANING AND MAINTENANCE, page

17) or replace burner orifice

1. Clean burner (see CLEANING AND MAINTENANCE, page

17) or replace burner orifice

2. Replace burner

3. Replace gas regulator

1. Check burner for dirt and debris. If found, clean burner (see CLEANING AND MAINTENANCE, page 17)

2. Replace gas regulator

Slight smoke or odor during initial operation

Heater produces a whistling noise when burner is lit

1. Residues from manufacturing processes

1. Turning control knob to HIGH position when burner is cold

2. Air in gas line

3. Air passageways on heater blocked

4. Dirty or partially clogged burner orifice

1. Problem will stop after a few hours of operation

1. Turn control knob to LOW position and let warm up for a minute

2. Operate burner until air is removed from line. Have gas line checked by local natural gas company

3. Observe minimum installation clearances (see Figure 2, page 6)

4. Clean burner (see CLEANING AND MAINTENANCE, page

17) or replace burner orifice

Continued

WARNING

WARNING ICON G 001

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.

OBSERVED PROBLEM

Heater produces a clicking/ticking noise just after burner is lit or shut off

Heater produces unwanted odors

Heater shuts off in use (ODS operates)

POSSIBLE CAUSE

1. Metal expanding while heating or contracting while cooling

1. Heater burning vapors from paint, solvents, glues, etc.

2. Gas leak. See Warn-

ing statement at top of page

1. Not enough fresh air is available

2. Low line pressure

3. ODS/pilot is partially clogged

REMEDY

1. This is common with most heaters. If noise is excessive, contact qualified service person

1. Ventilate garage. Stop using odor causing products while heater is running

2. Locate and correct all leaks (see CHECKING GAS CONNECTIONS, page 11)

1. Open window and/or door for ventilation

2. Contact local natural gas company

3. Clean ODS/pilot (see CLEANING AND MAINTENANCE, page

17)

Gas odor even when control knob is in OFF position

Gas odor during combustion

1. Gas leak. See Warn-

ing statement at top of page

2. Control valve defective

1. Foreign matter between control valve and burner

2. Gas leak. See Warn-

ing statement at top of page

1. Locate and correct all leaks (see CHECKING GAS CONNECTIONS, page 11)

2. Replace control valve

1. Take apart gas tubing and remove foreign matter

2. Locate and correct all leaks (see CHECKING GAS CONNECTIONS, page 11)

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

SERVICE

HINTS

B.T.U (Variable) 15,000/30,000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3" W.C. Inlet Gas Pressure (inches of water)

Maximum 7" Minimum 5"

Dimensions, Inches (H x W x D)

Heater 23.5 x 25.9 x 8.0 Carton 25.8 x 28.7 x 10.1

Weight (pounds)

Heater 30 Shipping 35

When gas pressure is too low

• pilot will not stay lit

• burner will have delayed ignition

• heater will not produce specified heat

When gas quality is bad

• pilot will not stay lit

• burner will produce flames and soot

• heater will backfire when lit

You may feel your gas pressure is too low or gas quality is bad. If so, contact your local natural gas supplier.

REPLACEMENT

PARTS

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 replacement part(s), call DESA International’s Technical Service Department at 1-800323-5190.

When calling, have ready

• your name

• your address

• model number of your heater

• how heater was malfunctioning

• type of gas used (propane or natural gas)

• purchase date

Usually, we will ask you to return the defective part to the factory.

Parts Not Under Warranty

Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Parts Department at 1-800-972-7879.

When calling, have ready

• model number of your heater

• the replacement part number

ACCESSORIES

Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International’s Parts Department at 1-800-972-7879. You can also write to the address listed on the back page of this manual.

FAN KIT - GA2100A

Provides better heat distribution. Makes heater more efficient. Complete installation and operating instructions provided with fan.

MANUAL SHUTOFF VALVE - GA5010

Manual shutoff valve with 1/8" NPT tap.

Shutoff Valve A 014

A 007FAN ACCESSORY-GRH

10-1 10-2

(Round)

10-3

(Square)

ODS/Pilot

PARTS LIST

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under REPLACEMENT PARTS on page 22 of this manual.

KEY PART NO. NUMBER DESCRIPTION QTY.

1 098304-01 Screw, #10 x 3/8" 2 2 098742-12 Front Panel 1 3 098197-02 Grill Guard 1 4 098342-01 Grill Guard Clip 2 5 099001-01BR Heat Shield 1 6 M11084-26 Screw, #10 x 3/8" 4 7 098352-02BR Deflector Unit 1 8 098271-02 Ignitor Cable 1 9 098249-01 Nut, M5 2 10 098244-03 ODS/Pilot, N.G. 1 10-1 098593-01 Thermocouple 1 10-2 098515-01 Ignitor Electrode 1 11 099126-02 Burner 1 12 098517-01 3/16" Pilot Tubing 1 13 098251-06 Injector 1 14 098250-01 Injector Holder 1 15 098867-04 Pressure Regulator 1 16 099553-01 Pilot Shield 1 17 098519-01 3/8" Outlet (Burner) Tubing 1 18 098298-03 3/8" Inlet Tubing 1 19 098265-01 3/8" NPT Male Elbow 1 20 098246-04 Control Valve 1 21 098529-02 Cabinet 1 22 097159-01 Piezo Ignitor 1 23 M11084-26 Screw, #10 x 3/8" 2 24 M11084-38 Screw, #8 x 3/8" 2 25 098268-02 1/2" NPT Female Elbow 1 26 098354-01 Control Knob 1 27 098508-01 Valve Retainer Nut 1 28 099066-01 Mounting Bracket 1

PARTS AVAILABLE — NOT SHOWN

098306-01 Control Position Label 1

NOTES

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

VANGUARD VENT-FREE GARAGE HEATERS

DESA International warrants this product and any parts thereof, to be free from defects in material and workmanship for two years from the date of first purchase, provided that the product has been properly installed, operated, and maintained in accordance with all applicable instructions. To make a claim under this warranty, the bill of sales or proof of purchase must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers only the cost of parts and labor required to restore this heater to proper operating condition. Warranty parts must be obtained through authorized dealers of this product and/or DESA International who will provide original factory replacement parts. Failure to use original factory replacement parts voids this warranty. The heater must be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear, or parts that fail or become damaged as a result of misuse, accidents, lack of proper maintenance, alteration, tampering, contaminated fuels, or defects caused by improper installation. Travel, transportation, and incidental costs associated with warranty repairs are not reimbursable under this warranty and are the responsibility of the owner.

To the full extent allowed by the law of the jurisdiction that governs the sale of the product, this express warranty excludes any and all other expressed warranties and limits the duration of any and all implied warranties, including warranties of merchantability and fitness for a particular purpose to two years from the date of first purchase; and DESA International’s liability is hereby limited to the purchase price of the product and DESA International shall not be liable for any other damages whatsoever including indirect, incidental, or consequential damages.

Some states do not allow a limitation of how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages, so the above limitation of implied warranties, or exclusion, or limitation of damages may not apply to you.

This warranty provides the original retail purchaser with specific legal rights. For specific information regarding those rights, please consult the applicable state laws.

For information about this warranty write:

DESA

INTERNATIONAL

P.O. Box 90004 2701 Industrial Drive Bowling Green, KY 42102-9004

099579-01 REV. C 4/92

Vanguard Heating VGN30 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual