Desa Tech Gas Heater CGR35PA User Manual

VENTED P ROPANE

GAS HEATERS

OWNER’S OPERATION AND INSTALLATION MANUAL

Models: CGR65BPA, CGR65PA, CGR50BPA, CGR50PA, CGR35PA

WARNING: Improper installation,

adjustment, alteration, service, or

maintenance can cause property

damage, personal injury or loss of

life. Refer to this manual for cor-

rect installation and operational

procedures. For assistance or

additional information consult a

qualified installer, service agency,

or the gas supplier.

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.

FOR YOUR SAFETY

— 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.

• Immediatelycallyourgassupplierfrom

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.

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SAFETY

INFORMATION

WARNINGS

WARNING ICON

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

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 operating or venting properly. Get fresh air at once! Have heater

or heater venting system serviced. Some people are more affected by carbon

monoxide than others. These include pregnant women, people with heart or lung

disease or anemia, those under the influence of alcohol, and those at high altitudes.

Propane Gas: Propane gas is odorless. An odor-making agent is added to propane

gas. The odor helps you detect a propane gas leak. However, the odor added to

propane gas can fade. Propane gas may be present even though no odor exists.

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.

1. A qualified service person must install heater and venting system.

2. Use only propane gas. Do not convert heater to use different fuel type.

3. Do not place propane supply tank(s) inside any structure. Locate propane supply

tank(s) outdoors.

4. 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.

5. 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. The State of California lists carbon monoxide

as a reproductive toxin under Proposition 65. Read the instructions under Air for

Combustion and Ventilation, pages 17 through 20 for complete information.

6. Never install the heater

• in a mobile home or a recreational vehicle.

• where curtains, furniture, clothing, or other flammable objects are less than 48

inches from the front, 53 inches from top, or 12 inches from right side and 6

inches from left side and back of heater.

• directly on carpeting, tile, or other combustible materials other than wood

flooring. Place heater on metal or wood panel extending the full width and

depth of heater.

• as a fireplace insert.

• in high traffic areas.

• in windy or drafty areas.

Continued

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SAFETY

WARNINGS Continued

WARNING ICON

001

INFORMATION

7. Provide the following minimum heater clearances from combustibles (as viewed

from the front of heater):

Continued

Front: 48 inches

Back: 6 inches

Top: 53 inches

Right Side: 12 inches

Left Side: 6 inches

8. Do not run heater

• where flammable liquids or vapors are used or stored

• under dusty conditions

9. Never place clothing or any flammable objects on the heater or venting system.

10. Heater and venting system surfaces are very hot during operation. Keep children

and adults away from hot surfaces to avoid burns or clothing ignition. Carefully

supervise young children when they are in the same room as heater. Heater will

remain hot for a time after shutdown. Let surface cool before touching.

11. Do not use heater as a cooking device.

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

13. Turn off heater and unplug (if equipped with blower) 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.

14. Replace any safety screen or guard removed for servicing before running heater.

15. Do not use heater if any part has been under water. Immediately call a qualified

service person to inspect the heater and to replace any part of the control system and

any gas control which has been underwater.

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Blower Switch

(on models

equipped with

blower)

PRODUCT

IDENTIFICATION

Control

Knob

Ignitor

Button

Burner

Radiants

Lower Front

Access Panel

Figure 1 - Vented Propane Gas Heater, Radiant Front

Draft Hood

Outlet for

Venting

System

Control

Valve

Blower

(on models

equipped with

blower)

Figure 2 - Vented Propane Gas Heater, Rear View

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Install and use heater with care. Follow all local codes. In the absence of local

codes, use the latest edition of the following:

LOCAL CODES

UNPACKING

• National Fuel Gas Code ANSI Z223.1, also known as NFPA 54 *

• National Electrical Code ANSI/NFPA 70 *

*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.

Piezo Ignition System

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

sources to light heater.

PRODUCT

FEATURES

Thermostatic Heat Control

This heater has a thermostat sensing bulb and a control valve. This results in the

greatest heating comfort. This can also result in lower gas bills.

INSTALLING

HEATER

WARNING

WARNING ICON

001

A qualified service person must install heater and

venting system. Have them inspect heater before use

and at least annually. Follow all local codes.

NOTICE

This heater must be electrically grounded if equipped with

blower. Follow all local codes. In the absence of local

codes, follow the National Electric Code, ANSI/NFPA 70.

CHECK GAS TYPE

Use only propane gas. If your gas supply is not propane, do not install heater. Call

dealer where you bought heater for proper type heater.

INSTALLATION ITEMS

Before installing heater, make sure you have all items below.

• external regulator (supplied by

installer, see page 11)

• piping (check local codes)

• sealant (resistant to propane gas)

• manual shutoff valve *

• ground joint union

• test gauge connection * (see

Figure 7, page 12)

• sediment trap

• tee joint

• pipe wrench

• venting materials

* 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 37.

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LOCATING HEATER

INSTALLING

HEATER

WARNING

Maintain the minimum clearances shown in Figure 3,

below. If you can, provide greater clearances.

WARNING ICON

001

Continued

WARNING

WARNING ICON

001

Never install the heater

• in a mobile home or a recreational vehicle.

• where curtains, furniture, clothing, or other flam-

mable objects are less than 48 inches from the front,

53 inches from the top, 12 inches from the right side

and 6 inches from the left side and back of heater.

• directly on carpeting, tile, or other combustible

materials other than wood flooring. Place heater on

metal or wood panel extending the full width and

depth of heater.

• as a fireplace insert.

• in high traffic areas.

• in windy or drafty areas.

CAUTION

WARNING ICON

001

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.

• in coldest part of room.

• near an electrical outlet if heater has blower or if you are planning to add

blower to heater. See Accessories, page 37 for blower.

CEILING

Minimum

53"

Minimum

Right

Side

Left

Side

6" Minimum

from Back

12"

Minimum

48" Minimum from

Front of Heater

Continued

Figure 3 - Heater Clearances

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VENTING HEATER

INSTALLING

Note: Venting/chimney materials are not supplied with heater.

HEATER

Continued

WARNING

WARNING ICON

001

A qualified service person must install the venting system

for this heater. If venting system is not properly installed

and maintained, the vent safety shut-off system will pre-

vent the heater from running. Follow all local codes.

WARNING

WARNING ICON

001

This heater has a vent safety shut-off system. This

system shuts off the heater gas supply if you do not

vent heater properly or the venting system is blocked.

Do not operate heater if not properly vented. Do not

tamper with the vent safety shut-off system. Carbon

monoxide poisoning and death may result.

WARNING

WARNING ICON

001

When venting this heater, follow the safety information

listed below.

• Never vent heater to another room or inside a build-

ing. Only vent heater to the outdoors.

• Do not vent heater exhaust to a chimney or flue

serving another solid-fuel-burning or gas appliance.

• We recommend you use flues classified as prefabri-

cated or masonry all-fuel chimney or type-B vent. See

Vent Types, page 10.

• If using old vent, check vent for soot, creosote, and

loose particles. If vent is damaged, repair or replace

it before using heater.

• Extend the vertical section of vent pipe at least three

feet above roof penetration.

• Extend the vertical section of vent pipe at least two feet

above the highest point of any roof within ten feet.

• The horizontal run of vent pipe should rise at least

1/4 inch for each foot of run.

• Support the vent pipe at least every five feet along its

length. Do not use combustible materials to support

vent pipe.

• Never extend vent pipe horizontally through outside

wall and terminate. You must connect a vertical run

of vent pipe to the horizontal run. The vertical run

must be at least 25% longer than the horizontal run.

• Install vent or chimney cap that is approved for use

with vented gas room heaters.

• Do not use vent pipe smaller in diameter than that of

the heater draft hood outlet.

• Do not use dampers in the vent pipes.

• Vertical height of vent must be greater than five feet

above vent connection at draft hood.

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VENTING HEATER (continued)

INSTALLING

WARNING

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

WARNING ICON

001

HEATER

Continued

The vertical section of vent pipe must

extend at least two feet above the

highest point of any roof within ten

feet.

Heater must be vented to the out-

doors. Never vent heater to another

room or inside a building.

Never extend vent pipe horizontally

through a chimney or flue. You must

connect a vertical run of vent pipe to

the horizontal run. The vertical run

must be at least 25% longer or five

feet minimum than the horizontal run.

Never extend vent pipe horizontally

through outside wall and terminate.

You must connect a vertical run of

vent pipe to the horizontal run. The

vertical run must be at least 25%

longer than the horizontal run.

Less than 5' between elbows

Vertical run of pipe must be at least

five feet from elbow to elbow.

Figure 4 - Improper Venting Systems

Continued

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VENTING HEATER (continued)

INSTALLING

Proper Size Vent

HEATER

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

fromtheheater.Fastenventconnectortothedrafthoodoutletwithasheetmetalscrew.

Continued

Vent Types

Prefabricated or Masonry All-Fuel Chimney - This is a masonry chimney or a

residential-type prefabricated chimney. Only use prefabricated chimneys listed by

Underwriters Laboratories (UL), Inc.

Type-B Vent - These vents are made of noncombustible, corrosion resistant

material. They are certified by a nationally recognized testing agency. Type-B

vents are double-walled pipe. Clearances to combustible construction must be in

accordance with the listing of the particular type-B vent. Type-B vents are cur-

rently listed as B-1, B-1 ¹/2, and B-2.

The illustrations below show both vent types. The illustration shows typical

construction of each type of venting system. Minimum clearances and lengths are

added to the illustrations.

Terminate at least 5' above draft hood. If vent extends

over 5' above roof, support with guy wires or braces.

Seal Around

Collar and

Flashing

Vent Cap

Must Be At

Least 2 Feet

Above

Highest Point

Within 10

Feet.

Maintain Listed

Clearance of Vent

Lock

Joints

Position

Firestop

Support

Laterals

Support If

Necessary

Lock Joints

Maintain Listed

Clearance of

Vent

53"

Min.

Vertical Vent

Lock Joints

Heater

Vent

Connector

Prefabricated or Masonry

All-Fuel Chimney

Type-B Vent

Figure 5 - Typical Construction of Venting Systems

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CONNECTING TO GAS SUPPLY

INSTALLING

HEATER

WARNING

A qualified service person must connect heater to gas

WARNING ICON

001

Continued

supply. Follow all local codes.

CAUTION

WARNING ICON

001

Never connect heater directly to the propane supply.

This heater requires an external regulator (not sup-

plied). Install the external regulator between the heater

and propane supply.

The installer must supply an external regulator. The external regulator will reduce

incoming gas pressure. You must reduce incoming gas pressure to between 11 and

14 inches of water. If you do not reduce incoming gas pressure, heater regulator

damage could occur. Install external regulator with the vent pointing down as

shown in Figure 6. Pointing the vent down protects it from freezing rain or sleet.

External Regulator

BULK PROPANE

TANK

VENT

Vent Pointing Down

Figure 6 - External Regulator with Vent Pointing Down

CAUTION

WARNING ICON

001

Use only new, black iron or steel pipe. Internally-tinned

copper tubing may be used in certain areas. Check your

local codes. Use pipe that is 1/2" in diameter or greater

to allow proper gas volume to heater. If pipe is too

small, undue loss of pressure will occur.

The gas supply line to your heater must be 1/2 inch in diameter or larger. If the

supply line branches to serve two or more heaters, the line from the branch back to

the external regulator must be doubled or tripled, etc., in size (depending upon the

number of heaters). Example for 1/2 inch diameter supply line: If the supply line

branches to serve two heaters, the line diameter from the branch back to the

external regulator must be at least 1 inch. If three heaters are served, the line

diameter from the branch back to the external regulator must be at least 1 1/2

inches.

Note: If gas supply line total length exceeds forty feet, use a larger diameter pipe.

Use pipe that is the next size larger than the heater control valve fitting.

Continued

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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).

INSTALLING

HEATER

Continued

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant

from going into pipe. Excess sealant in pipe could result in clogged heater valves.

CAUTION

WARNING ICON

001

Use pipe joint sealant that is resistant to liquid petroleum

(LP) gas.

Install sediment trap in supply line as shown in Figure 7. 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: Use two pipe wrenches when connecting gas piping to gas control

valve of heater. This will prevent turning or damaging control valve.

Acceptable

construction

of inlet gas

Control

Valve

line

From External

Regulator (11"

W.C. Min** to

14" W.C. Max)

Manual

Shutoff

Valve *

Ground

Joint

Union

Preferred

construction

of inlet gas

line

Reducer

Bushing to

1/8" NPT

Test

Gauge

Connection*

From

1/8" NPT

Plug Tap

External

Regulator

(11" W.C.

Min** to

14" W.C.

Max)

Tee Joint

Pipe

Nipple

Sediment

Trap

Cap

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 37.

** For purposes of input adjustment.

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CHECKING GAS CONNECTIONS

INSTALLING

WARNING

HEATER

WARNING ICON

001

Test all gas piping and connections for leaks after install-

ing or servicing. Correct all leaks at once.

Continued

WARNING

WARNING ICON

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.

CAUTION

WARNING ICON

001

Make sure external regulator has been installed between

propane supply and heater. See guidelines under Con-

necting to Gas Supply, page 11.

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

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

propane supply tank valve.

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.

6. Re-connect heater and manual shutoff valve to gas supply. Check re-connected

fittings for leaks.

Test Pressures Equal To or Less Than 1/2 PSIG

1. Close manual shutoff valve (see Figure 8).

2. Pressurize supply piping system by either using compressed air or opening

propane supply tank valve.

3. Check all joints from propane supply tank to manual shutoff valve. 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 8).

2. Open propane supply tank valve.

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

4. Check all joints from manual shutoff valve to control valve on heater. 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 21 through 23). Check the rest of the

internal joints for leaks.

7. Turn off heater (see To Turn Off Gas to Appliance, page 23).

_POOn Position

Off Position

Continued

Figure 8 - Manual Shutoff Valve

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INSTALLING RADIANTS

INSTALLING

HEATER

WARNING

WARNING ICON

001

Continued

Carefully handle the glass panel. Glass edges are

rounded and buffed to prevent cuts, however, chipped

or broken sections of glass can present sharp edges.

These sharp edges can cut skin.

1. Remove glass guard from across opening at front of heater (see Figure 9).

2. Place radiants into combustion chamber through opening at front of heater.

Front of radiant sits on front radiant support (see Figure 10). Back of radiant

rests on back radiant support (see Figures 9 and 10).

Note: Radiants should never come in contact with burner flame. Contact with

flame may cause carbon or soot deposits on radiants.

Burner

Glass

Guard

Combustion

Chamber

Back Radiant

Support

Lower Front

Access Area

Lower

Front Access

Glass Retaining

Panel

Channel

Figure 9 - Location of Radiants

Back Radiant Support

Radiant

Burner

Front Radiant Support

Figure 10 - Position of Radiant

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INSTALLING GLASS PANEL

For Radiant Models Only

1. Locate the glass panel package inside the back of the heater.

INSTALLING

HEATER

Continued

CAUTION

WARNING ICON

001

Before installing glass panels, inspect the edges. If you

notice any chips or cracks, do not install. If the surface on

either side is deeply scratched, do not install. If these

conditions exist, call DESA International’s Technical Ser-

vice Department at 1-800-323-5190 for replacement glass

panels.

CAUTION

WARNING ICON

001

Do not operate heater without glass panels installed.

Operating heater without glass panels will damage front

of heater due to excess temperatures.

CAUTION

WARNING ICON

001

Glass panels may have sharp edges. Handle with care.

2. Remove lower front access panel of heater by removing two screws at upper

corners of panel. The lower front access panel covers the lower front access

area (see Figure 9, page 14).

3. Remove two screws on glass guard. Remove glass guard (see Figure 11).

4. Carefully insert one glass panel up through lower front access area (see Figure 11).

5. Carefully slip glass panel behind hearth assembly (see Figure 11).

Glass

Guard

Screw

Hearth

Assembly

Glass

Panel

Lower Front

Access Area

Figure 11 - Inserting Glass Panels

Continued

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6. Insert top edge of glass panel into the upper glass retaining channel (see Figure 12).

INSTALLING

HEATER

CAUTION

WARNING ICON

001

Continued

Make sure you insert top edge of glass panels into the

upper glass retaining channel. Do not install glass

panels with top edge of glass in front of the upper glass

retaining channel. Glass panels will not automatically

go into the channel. You must guide the glass panels

into it. Incorrect installation will damage front of heater

due to excess temperatures.

Upper Glass

Retaining Channel

Glass

Panel

Lower Glass

Retaining Channel

Lower Front Access Area

Figure 12 - Inserting Top Edge of Glass Panel into

Upper Glass Retaining Channel

7. Lower glass into lower glass retaining channel. Slide glass panel all the way to the

left side.

Note: If you have chipped or cracked a glass panel during installation, do not

use. Contact DESA International’s Technical Service Department at 1-800-

323-5190 for a replacement glass panel.

8. Repeat steps 4 through 7 for all glass panels.

Glass

Panel

Lower Glass

Retaining

Channel

Figure 13 - Inserting Glass into Lower Retaining Channel

9. Reinstall glass guard. Reinstall lower front access panel of heater.

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AIR FOR

COMBUSTION

AND

WARNING

WARNING ICON

001

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. Read the following

instructions to insure proper fresh air for this and other

fuel-burning appliances in your home.

VENTILATION

Today’s homes are built more energy efficient than ever. New materials, increased

insulation, and new construction methods help reduce heat loss in homes. Home

owners weather strip and caulk around windows and doors to keep the cold air out

and the warm air in. During heating months, home owners want their homes as

airtight as possible.

While it is good to make your home energy efficient, it is not good to make it too

airtight. Your home needs to breath. If your home is too airtight, fresh air has little

chance of entering in. This could be dangerous if you have fuel-burning appliances.

These appliances need fresh, outside air for proper combustion and ventilation.

Exhaust fans, fireplaces, clothes dryers, and fuel-burning appliances draw air from

the house to operate. This heater is a fuel-burning appliance. It uses air from inside

the house for combustion. It also uses this air as a draft for venting. This draft air

helps move combustion gases through the vent pipe to the outdoors. If your house

is too airtight, there is not enough fresh air for these items to use. Fresh air may

draw back into the house through venting flues and chimneys. This will keep fuel-

burning appliances from venting properly. This may cause them to release poison-

ous carbon monoxide gas into your home. It is very important to provide enough

fresh air to run all fuel-burning appliances.

DANGER

WARNING ICON

001

Carbon monoxide poisoning may lead to death!

Carbon monoxide is a colorless, odorless gas. Early signs of carbon monoxide

poisoning resemble the flu, with headaches, dizziness, and/or nausea. If you have

these signs, the heater may not be operating or venting properly. Get fresh air at

once! Have heater or heater venting system serviced. Some people are more

affected by carbon monoxide than others. These include pregnant women, persons

with heart and lung disease and anemia, those under the influence of alcohol, and

those at high altitudes.

Continued

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In the absence of local codes, use the following excerpts from the National Fuel

Gas Code NFPA 54/ANSI Z223.1, Air for Combustion and Ventilation.

AIR FOR

COMBUSTION

AND

DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION

Example 1: Locating Heater in Unconfined (Open) Area

VENTILATION

NOTICE

Continued

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). Include adjoining rooms only if there

are no doors between the rooms or if you add ventila-

tion grills between the rooms (see Ventilating Confined

Area, page 20).

In an open area, the air that leaks around doors and windows may provide enough

fresh air for combustion and ventilation.

Draft Hood Spillage Test

Follow the steps below to see if enough fresh air is available.

1. Close all windows and doors.

2. If you have a fireplace, start a fire. Build fire until flames are burning strongly.

3. Turn on all exhaust fans. These include exhaust fans for kitchen, bathroom,

water heaters (gas or electric), etc.

4. Turn on all vented gas appliances. These include any room heaters, water

heaters, clothes dryer, etc.

5. Wait ten minutes for drafts to regulate.

6. Check for draft-hood spillage at each vented gas appliance. Do this by holding

a lit match two inches from the draft opening (see Figure 14). If match flame

pulls toward the draft hood, there is no spillage. If match flame blows away

from the draft hood, there is spillage. This is a hazardous condition. See Draft

Hood Spillage, page 19.

Vent Pipe

Draft Hood

Match

Heater

Typical

Water

Match

Heater

Draft Hood

Opening

Figure 14 - Checking for Draft Spillage

No Draft Hood Spillage: This shows there is enough fresh air in area for

appliances. Turn off all exhaust fans and appliances if desired.

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Draft Hood Spillage: This is a hazardous situation. Draft hood spillage re-

leases poisonous carbon monoxide gas into your home.

AIR FOR

COMBUSTION

AND

DANGER

WARNING ICON

001

Carbon monoxide poisoning may lead to death!

VENTILATION

If draft hood spillage occurs, check for blocked flue connectors, vent pipes, and

chimneys. If you find blockage, remove. Test again for spillage. If spillage still

occurs or there was no blockage, you need more fresh, outside air in the house. You

must provide additional fresh-air ventilation. Follow the steps below at once.

Continued

A. Open a window near the appliance(s) at least two inches. Test again for

spillage. If spillage does not stop, open window more and retest. If spillage

stops, keep window open while running appliance(s). Supply fresh, outside

air by a permanent method as soon as possible. If spillage still occurs, leave

window open and go to next step.

B. If you have a fireplace, open a window or door near it at least two inches.

Test again for spillage. If spillage does not stop, open window or door more

and retest. If spillage stops, keep window or door open while using fire-

place. Supply fresh, outside air by a permanent method as soon as possible.

If spillage still occurs, leave window or door open and go to next step.

C. If you have kitchen and bathroom exhaust fans, turn them off. Test again for

spillage. If spillage stops, do not use exhaust fans. Turn off circuit breakers for

fans if possible. Permanently supply fresh, outside air as soon as possible.

Providing Permanent Fresh-Air Ventilation

If draft hood spillage occurs, you must permanently supply fresh, outside air to the

inside of your house. Provide extra fresh air by using ventilation grills or ducts.

Connect these items directly to the outdoors or spaces open to the outdoors. These

spaces include attics and crawl spaces. If you install this heater in an area with

other gas appliances, you must total the BTU/Hr input rating of all appliances.

Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1. It lists fresh-air

requirements for fuel-burning appliances.

IMPORTANT

Do not provide openings for inlet or outlet air into attic

if attic has a thermostat controlled power vent.

Chimney

or Gas

Vent

Ventilated

Attic

Outlet

Air

Outlet

Air

To Attic

Crawl

Space

Inlet

Air

Ventilated

Crawl Space

Inlet Air

Continued

Figure 15 - Ventilation Air from Outdoors

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Example 2: Locating Heater in Confined (Closed) Area

AIR FOR

COMBUSTION

AND

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.

VENTILATION

Continued

If you install this heater in a confined area, you must provide additional fresh air.

Ventilating Confined Area

This fresh air would come from an adjoining open area or outdoors.

WARNING

WARNING ICON

001

The adjoining open area must have enough fresh,

outside air ventilation to supply any appliance in that

area plus the confined area. Follow instructions under

Example 1: Locating Heater in Unconfined (Open) Area,

page 18 to make sure fresh air ventilation is adequate.

When ventilating to an adjoining open area, you must provide two permanent

openings: one within 12" of the ceiling and one within 12" of the floor on the wall

connecting the two areas. Follow the National Fuel Gas Code NFPA 54/ANSI

Z223.1. It lists fresh-air requirements for fuel-burning appliances.

12"

Ventilation Grills

Connecting Two Rooms

to Meet Unconfined Space

Ventilation

Grills into

Closet for

Hot Water

Heater

12"

Recommended

Fresh Air Duct

into Crawl Space in

Furnace Area or in

Closet with Water Heater

Figure 16 - Ventilation Air from Inside Building

After providing ventilation between rooms, check for draft hood spillage (see Draft

Hood Spillage Test, page 18). If draft hood spillage still occurs, provide more

ventilation between rooms or provide permanent ventilation from outdoors. See

Providing Permanent Fresh-Air Ventilation, page 19.

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OPERATING

HEATER

WARNING

WARNING ICON

001

Heater and venting system surfaces are very hot during

operation. Keep children and adults away from hot sur-

facestoavoidburnsandclothingignition. Carefullysuper-

vise young children when they are in the same room as

heater.Heaterwillremainhotforatimeaftershutdown.Let

surface cool before touching.

NOTICE

If operating heater for the first time, a slight odor will occur.

This odor will go away after a few hours of operation.

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING

WARNING ICON

001

If you do not follow these instructions exactly, a fire or

explosion may result causing property damage, per-

sonal 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. If heater is equipped with a blower, turn off all electric power to the heater.

3. Make sure manual shutoff valve is fully open.

4. Locate control knob on top of heater. Fully depress control knob in any position

other than PILOT to shut off burner and pilot.

DEPRESS

FOR OFF

Ignitor Button

PILOT

VEILLEUSE

APPUYER POUR

ARRÊTER

Control Knob

LOW

BAS

HIGH

HAUT

Continued

Figure 17 - Control Knob and Ignitor Button

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

OPERATING

HEATER

Continued

6. Remove lower front access panel on heater.

7. Turn control knob clockwise

knob for five seconds.

to the PILOT position. Fully depress control

Clockwise

Note: You may be running this heater for the first time after hooking up to gas

supply. If so, you may need to depress control knob in for 15 seconds. This

allows air to bleed from the gas system.

8. With control knob depressed, push down and release ignitor button. This will

light pilot. The pilot is attached to the front of burner. You can see pilot with front

access panel of heater removed (see Figure 17, page 21). If needed, keep pressing

ignitor button until pilot lights.

Note: If pilot does not stay lit, refer to Troubleshooting, pages 27 through 31.

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 23.

9. Keep control knob depressed for 30 seconds after lighting pilot. After 30 seconds,

release control knob.

• If control knob does not pop up when released, contact a qualified service

person or gas supplier for repairs.

• Shut off gas immediately.

Note: If pilot goes out, repeat steps 4 through 9.

10. Replace lower front access panel on heater.

11. If heater is equipped with a blower, turn on all electrical power to the heater.

12. Turn control knob counterclockwise

to desired setting.

C-clockwise

13. If equipped, turn blower control to the AUTO or ON position (if desired).

CAUTION

WARNING ICON

001

Do not try to adjust heating levels by using the manual

shutoff valve.

Figure 18 - Viewing Pilot

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MANUAL LIGHTING PROCEDURE

OPERATING

HEATER

1. Remove lower front access panel on heater.

Continued

2. Locate pilot. Pilot is attached to the front of burner.

3. Follow steps 1 through 7 under Lighting Instructions, pages 21 and 22.

4. With control knob depressed, strike match. Hold match to pilot until pilot lights.

5. Follow steps 9 through 13 under Lighting Instructions, page 22.

BLOWER OPERATION

(For Models with Blower)

WARNING

WARNING ICON

001

This heater has a three-prong, grounded electrical plug.

This plug helps protect you against electrical shock.

Only connect plug to a properly grounded, three-prong

receptacle. Do not cut or remove the grounding prong

from this plug.

1. Plug power cord into a standard 115 volt, 60 hertz outlet.

2. Turn the blower control to either the AUTO or ON position. In the AUTO position,

as the heater begins to heat, the blower will automatically come on. The blower will

remain on until the burner shuts off and cools down. In the ON position, the blower

will stay on constantly. Turn the blower control to the OFF position to stop the

blower at any time.

TO TURN OFF GAS TO APPLIANCE

Shutting Off Heater

1. Fully depress control knob in any position other than PILOT to shut off burner

and pilot.

2. If equipped, turn blower control to OFF position.

Shutting Off Burner Only (pilot stays lit)

1. Turn control knob to the PILOT position. At this setting, only the pilot remains lit.

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Check pilot flame pattern and burner flame pattern often.

INSPECTING

PILOT AND

BURNER

PILOT FLAME PATTERN

Figure 19 shows a correct pilot flame pattern. Figure 20 shows an incorrect pilot

flame pattern. The incorrect pilot flame is not touching the thermocouple. This will

prevent the thermocouple from getting hot, causing the heater to shut down.

FLAME

Thermocouple

Figure 19 - Correct Pilot

Flame Pattern

Figure 20 - Incorrect

Pilot Flame Pattern

If pilot flame pattern is incorrect, as shown in Figure 20

• turn heater off (see To Turn Off Gas to Appliance, page 23)

• contact a qualified service person

BURNER FLAME PATTERN

Note: To view burner flame, look through front glass of heater.

Figure 21, page 25, shows a correct burner flame pattern. Figure 22, page 25, shows

two incorrect burner flame patterns. The two incorrect flame patterns show ragged

yellow flames and flames lifting off of burner.

WARNING

WARNING ICON

001

If ragged yellow flame occurs, your heater could produce

increased levels of carbon monoxide. If burner flame is

incorrect, follow instructions on page 25.

NOTICE

Do not mistake orange flames with yellow flame. Dirt or

other fine dust particles enter the heater and burn

causing brief patches of orange flame.

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INSPECTING

PILOT AND

BURNER

Sharp Blue

Flame

FLAME

Continued

Figure 21 - Correct Burner Flame Pattern

Ragged

Yellow

Flame

Lifting

Off of

Burner

Figure 22 - Incorrect Burner Flame Patterns

If burner flame pattern is incorrect, as shown in Figure 22

• turn heater off (see To Turn Off Gas to Appliance, page 23)

• see Troubleshooting, pages 27 through 31.

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CLEANING

AND

WARNING

WARNING ICON

001

Turn off heater and let cool before cleaning or servicing.

MAINTENANCE

WARNING

WARNING ICON

001

Keep heater clear and free from combustible materials,

gasoline, and other flammable vapors and liquids.

CAUTION

WARNING ICON

001

You must keep control areas, burner, and circulating air

passageways of heater clean. Inspect these areas of

heater before each use. Have heater and venting system

inspected yearly by a qualified service person. Heater

may need more frequent cleaning due to excessive lint

from carpeting, bedding material, etc.

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.

COMBUSTION CHAMBER AND BURNER

Clean the combustion chamber and burner if you have run the heater with a high

yellow flame. Incomplete combustion from lack of air causes the yellow flame.

This will deposit soot inside the combustion chamber and on the burner. To clean

combustion chamber and burner, you must remove the burner from heater. See

Service Procedures, page 33, to remove burner. After removing burner, blow inside

of combustion chamber clean with compressed air. Clean burner with a steel-wire

brush. Blow soot from burner with compressed air.

PILOT

Use a vacuum cleaner, compressed air, or small, soft-bristled brush to clean.

BURNER ORIFICE

Use a vacuum cleaner, compressed air, or small, soft-bristled brush to clean. You

can also use a tooth pick to clean orifice. Do not enlarge or damage orifice hole.

PILOT AND BURNER FLAME

Check the pilot and burner flame monthly. Make sure pilot and burner flame is

burning correctly. See Inspecting Pilot and Burner Flame, page 24.

VENTING SYSTEM

Check the venting system at least once a year. Make sure joints are secure and vent

pipe is in good condition. Do not obstruct combustion and ventilation air entering

the rear of heater.

BLOWER MOTOR (For Models with Blower)

The motor on a new blower is properly lubricated at the factory. The first heating

season, the motor will need no additional care. At the beginning of each season

afterwards, place a few drops of SAE 20 motor oil in the lubrication holes of motor.

Locate the lubrication holes at front and rear of motor on motor casing.

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TROUBLE-

SHOOTING

WARNING

WARNING ICON

001

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.

Note: Alltroubleshootingitems

are listed in order of operation.

CAUTION

WARNING ICON

001

Never use a wire, needle, or similar object to clean pilot.

This can damage pilot.

OBSERVED

PROBLEM

POSSIBLE

CAUSE

REMEDY

When ignitor button

is pressed, there is no 2. Ignitor electrode posi-

1. Incorrect spark gap.

1. Adjustsparkgapto1/16".

2. Replace ignitor.

spark at pilot.

tioned wrong.

3. Ignitor electrode broken. 3. Replace ignitor.

4. Ignitor electrode not con- 4. Reconnect ignitor cable.

nected to ignitor cable.

5. Ignitor cable pinched or

wet.

5. Free ignitor cable if

pinched by any metal or

tubing. Keep ignitor

cable dry.

6. Piezo ignitor nut is loose. 6. Tighten nut holding piezo

ignitor to heater cabinet.

Nut is located inside

heater cabinet at top.

7. Broken or frayed ignitor

cable.

7. Replace ignitor cable.

8. Loose ignitor cable.

9. Bad piezo ignitor.

8. Reconnect ignitor cable.

9. Replace piezo ignitor.

When ignitor button

is pressed, there is

spark at pilot but no

ignition.

1. Gas supply turned off or

manual shutoff valve

closed.

2. Control knob not in

PILOT position.

1. Turn on gas supply or

open manual shutoff

valve.

2. Turn control knob to

PILOT position.

3. Control knob not

pressed in while in

PILOT position.

3. Press in control knob

while in PILOT position.

4. Air in gas lines when

installed.

4. Continue holding down

control knob. Repeat

igniting operation until

air is removed.

5. Depleted gas supply.

6. Pilot is clogged.

5. Contact local propane

gas company.

6. Clean pilot (see Clean-

ing and Maintenance,

page 26) or replace pilot

assembly.

7. Gas regulator setting is

not correct.

7. Replace control valve.

Continued

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OBSERVED

PROBLEM

POSSIBLE

CAUSE

TROUBLE-

REMEDY

SHOOTING

Pilot lights but flame

goes out when

control knob is

released.

1. Manual shutoff valve

not fully open.

2. Control knob not fully

pressed in.

1. Fully open manual

shut-off valve.

2. Press in control knob

fully.

Continued

3. Control knob not

pressed in long enough.

3. After pilot lights, keep

control knob pressed in

30 seconds.

4. Safety interlock system

has been triggered.

4. Wait one minute for

safety interlock system

toreset.Repeatignition.

5. Hand tighten until

snug, then tighten 1/4

turn more.

5. Thermocouple connec-

tion loose at control

valve.

6. Pilotflamenottouching

thermocouple, which

allows thermocouple to

cool, causing pilot

flame to go out. This

problem could be

caused by any or all of

the following:

6. A) Contact qualified

service person to

properly adjust pilot

flame.

B) Contact local

propane gas company.

C) Clean pilot (see

Cleaning and Mainte-

nance, page 26) or

replace pilot assembly.

A) Improperly ad-

justed pilot flame

B) Low gas pressure

C) Dirty or partially

clogged pilot

7. Thermocouple dam-

aged.

8. Control valve damaged.

7. Replace thermocouple.

8. Replace control valve.

Burner does not light

after pilot is lit.

1. Safety interlock

system has been

inadvertently trig-

gered.

1. Fully depress control

knob in any position

otherthanpilot. Waitone

minute for safety inter-

lock system to reset. Re-

peat ignition.

2. Burner orifice is

clogged.

2. Clean burner (see

Cleaning and Mainte-

nance, page 26) or

replace burner orifice

(see Changing Burner

Orifice, page 34).

3. Burner orifice diameter

is too small.

3. Replace burner orifice

(see Changing Burner

Orifice, page 34).

4. Inlet gas pressure is

too low.

4. Contact local propane

gas company.

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OBSERVED

PROBLEM

POSSIBLE

CAUSE

TROUBLE-

REMEDY

SHOOTING

Delayed ignition of

burner.

1. Manifold pressure is

too low.

1. Contact local propane

gas company.

Continued

2. Burner orifice is

clogged.

2. Clean burner (see

Cleaning and Mainte-

nance, page 26) or

replace burner orifice

(see Changing Burner

Orifice, page 34).

Burner backfiring

during combustion.

1. Burner orifice is

clogged or damaged.

1. Clean burner (see

Cleaning and Mainte-

nance, page 26) or

replace burner orifice

(see Changing Burner

Orifice, page 34).

2. Burner damaged.

2. Replace burner.

3. Gas regulator defective. 3. Replace control valve.

4. Delayed ignition.

4. See above.

Yellow flame during

burner combustion

1. Not enough air.

1. Check burner for dirt

and debris. If found,

clean burner (see

Cleaning and Mainte-

nance, page 26).

2. Gas regulator defective. 2. Replace control valve.

Flame lifting during

combustion.

1. Burner orifice is

clogged or damaged.

1. Clean burner (see

Cleaning and Mainte-

nance, page 26) or

replace burner orifice

(see Changing Burner

Orifice, page 34).

2. Manifold pressure too

high/defective gas

regulator

2. Replace control valve

(see Removing Control

Valve and Burner Tube,

page 32).

Slight smoke or odor

during initial opera-

tion.

1. Residues from manu-

facturing processes.

1. Problem will stop after a

few hours of operation.

Continued

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OBSERVED

PROBLEM

POSSIBLE

CAUSE

TROUBLE-

REMEDY

SHOOTING

Burner fails to

respond to thermo-

stat.

1. Pilot flame not lit.

1. Light pilot burner (see

Lighting Instructions,

page 21).

Continued

2. Pilot flame not prop-

erly heating end of

thermocouple.

3. Pilot burner orifice

clogged or damaged.

2. Pilot flame needs

adjusting. Contact a

qualified service person.

3. Clean pilot burner (see

Cleaning and Mainte-

nance, page 26).

4. Control valve defec-

tive.

4. Replace control valve.

5. Temperature at ther-

mostat bulb satisfied.

Heater produces a

whistling noise when

burner is lit.

1. Air in gas line.

1. Operate burner until air

is removed from line.

Have gas line checked

by local propane gas

company.

2. Air passageways on

heater blocked.

2. Observe minimum

installation clearances

(see Figure 3, page 7).

3. Clean burner (see

Cleaning and Mainte-

nance, page 26) or

3. Dirty or partially

clogged burner orifice.

replace burner orifice

(see Changing Burner

Orifice, page 34).

Heater produces a

clicking/ticking noise

just after burner is lit

or shut off.

1. Metal expanding while

heating or contracting

while cooling.

1. This is common with

most heaters. If noise is

excessive, contact

qualified service person.

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TROUBLE-

SHOOTING

WARNING

WARNING ICON

001

If you smell gas

• Shut off gas supply.

• Do not try to light any appliance.

• Donottouchanyelectricalswitch;donotuse

any phone in your building.

• Immediately call your gas supplier from a

neighbor’s phone. Follow the gas supplier’s

instructions.

• Ifyoucannotreachyourgassupplier, callthe

fire department.

OBSERVED

PROBLEM

POSSIBLE

CAUSE

REMEDY

1. Ventilate room. Stop

using odor causing

Heater produces

unwanted odors.

1. Heater burning vapors

from paint, hair spray,

glues, etc.

products while heater is

running.

2. Refill supply tank.

3. Find and correct all

leaks (see Checking Gas

Connections, page 13).

2. Low fuel supply

3. Gas leak. See Warn-

ing statement at

top of page.

1. Check venting system.

If damaged or blocked,

repair. If venting system

is OK, have qualified

service person replace

vent safety switch, wire

harness, or thermo-

couple interrupter.

Heater shuts off in

use.

1. Heater not venting

correctly. Vent safety

switch shuts off

heater.

2. Contact local propane

gas company.

2. Low line pressure.

3. Clean pilot (see Clean-

ing and Maintenance,

page 26).

3. Pilot partially clogged.

1. Find and correct all

leaks (see Checking Gas

Connections, page 13).

Gas odor even when

control knob is in

OFF position.

1. Gas leak. See Warn-

ing statement at

top of page.

2. Replace control valve.

2. Control valve damaged.

1. Take apart gas tubing

and remove foreign

matter.

Gas odor during

combustion.

1. Foreign matter be-

tween control valve

and burner.

2. Find and correct all

leaks (see Checking Gas

Connections, page 13).

3. Ventilate area around

heater to remove any

foreign fumes.

2. Gas leak. See Warn-

ing statement at

top of page.

3. Foreign fumes in area

of heater being drawn

through burner com-

bustion.

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SERVICE

WARNING

WARNING ICON

001

PROCEDURES

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.

Removing Control Valve

and Burner Tube

1. Shut off gas supply to

heater.

Control Rod

2. Remove lower front

access panel on heater.

3. Disconnect burner tube

from orifice holder (see

Figure 23).

4. Remove pilot gas line

from control valve (see

Figure 23).

Cotter Pin

Control Valve

Bracket

5. Disconnect wire connec-

tors from thermocouple

interrupter (see Figure

23).

6. Remove thermocouple

and thermocouple inter-

rupter from control valve.

7. Remove cotter pin from

control valve. This

Mounting

Screw

Orifice

Holder

Burner

Tube

releases the control rod

from valve (see Figure

23).

Wire Connector

8. Remove the two mounting

screws from control valve

mounting bracket (see

Figure 23).

Thermocouple

Interrupter

9. Remove assembly from

the rear of heater.

Thermocouple

10. To reinstall, reverse above

steps. Turn on gas to

heater and check for gas

leaks. Apply a mixture of

liquid soap and water to

all joints. Bubbles forming

show a leak. Correct all

leaks at once.

Pilot Gas Line

Wire Connector

Figure 23 - Removing Control Valve and Burner Tube

11. Replace lower front

access panel.

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SERVICE

PROCEDURES

Continued

Removing Burner

1. Shut off gas supply to

heater.

Burner

2. Remove lower front

access panel on heater.

3. Disconnect burner tube

from orifice holder (see

Figure 24).

4. Remove orifice holder

from burner (see Figure

24).

Burner

Tube

5. Remove pilot burner

bracket nuts and remove

pilot assembly (see Figure

24).

6. Move burner to the right

for clearance. Rotate

burner 90° and remove

burner through lower front

access opening.

7. To reinstall, reverse above

steps. Turn on gas to

heater and check for gas

leaks. Apply a mixture of

liquid soap and water to

all joints. Bubbles form-

ing show a leak. Correct

all leaks at once.

Pilot Burner

Assembly

Pilot Burner

Bracket Nut

Orifice

Holder

Figure 24 - Removing Burner Tube, Orifice Holder, and Pilot Burner Assembly

(35,000 BTU/Hr Burner Shown)

Continued

8. Replace lower front

access panel.

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SERVICE

PROCEDURES

Continued

Burner

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 25).

4. Remove orifice holder

from burner (see Figure

25).

Orifice

Burner

Tube

5. Use socket or open-end

wrench to remove the old

orifice from the orifice

holder.

Orifice

Holder

6. Clean and replace orifice,

or replace with new

orifice.

Figure 25 - Orifice Location (35,000 BTU/Hr Burner Shown)

7. Turn on gas to heater and

check for gas leaks. Apply

a mixture of liquid soap

and water to all joints.

Bubbles forming show a

leak. Correct all leaks at

once.

8. Replace lower front

access panel.

Figure 26 - Orifice

Fan Switch

(Off/On/Auto)

Auto

BLOWER

WIRING

Off

DIAGRAM

(For Models With

Blower Assembly)

Fan

Switch

(N.O.)

Red

Black

Blue

Black

Blower

Motor

110/115 V.A.C.

Black

Red

White

Green

White

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You may have further questions about installation, operation, or troubleshooting.

If so, contact DESA International’s Technical Service Department at 1-800-323-

5190.

TECHNICAL

SERVICE

35,000 BTU/Hr 50,000 BTU/Hr 65,000 BTU/Hr

SPECIFICATIONS

Model

BTU

35,000

50,000

65,000

Type Gas

Ignition

Propane Only

Piezo

Propane Only

Piezo

Propane Only

Piezo

Pressure Regulator Setting 10.5" W.C.

Inlet Gas Pressure

10.5" W.C.

Maximum

Minimum

14" W.C.

11" W.C.

14" W.C.

11" W.C.

14" W.C.

11" W.C.

Dimensions, Inches

Heater (H x W x D) 25 x 27 ¹/4 x 16 27 x 32 ¹/2 x 16

31 x 37 ³/4 x 16

158**/145

5" dia.

Shipping Weight (pounds) 97

Flue Vent Size

Orifice Size

133**/120

4" dia.

52 drill, ø .0635 46 drill, ø .081

2.4 mm, ø .0945

** When equipped with blower

Note: These heaters are certified for elevations of 0-4500 feet above sea level. For

elevations above 2000 feet, de-rate heater 4% for each 1000 feet above sea level.

When gas pressure is too low

• pilot will not stay lit

SERVICE

HINTS

• burner will have delayed ignition

• heater will not produce specified heat

• propane gas supply may be low

When gas quality is bad

• pilot will not stay lit

• burner will produce yellow 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 propane gas supplier.

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Note: Use only original replacement parts. This will protect your warranty cover-

age for parts replaced under warranty.

ORDERING

REPLACEMENT

PARTS

Parts Under Warranty

Contact your nearest dealer or call DESA International’s Technical Service De-

partment at 1-800-323-5190.

When calling DESA International, 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 your nearest dealer. If they can’t supply original replacement part(s),

either contact your nearest Parts Central (below) or call DESA International’s Parts

Department at 1-800-972-7879 for information.

When calling DESA International, have ready

• model number of your heater

• the replacement part number

These Parts Centrals are privately owned businesses. They have agreed to support

our customer’s needs by providing original replacement parts and accessories. For

certain parts, some Parts Centrals may refer you to a dealer in your area. When

calling a Parts Central, ask for the Parts Department.

PARTS

CENTRALS

Howard Industries

1514 South Maple Ave.

Los Angeles, CA 90015

213-747-5121

Washer Equipment Co.

1715 Main Street

Kansas City, MO 64108

KS, MO, AR

Warmer Image

208 Carter Drive, Unit 21

West Chester, PA 19382

215-696-2670

816-842-3911

1-800-368-0803

Victor Manufacturing

42 Rumsey Road

E. Hartford, CT 06108

NY, NJ, DE, PA, MD

203-289-4223

Controls, Inc.

LaPorte’s Parts & Service

2444 North 5th Street

Hartsville, SC 29550

803-879-3009

6820 Glenwood Ave.

Raleigh, NC 27612

NC, SC, VA, MD

919-787-2242

Parts Department

Controlled Engineering

299 Roosevelt Road

Glen Ellyn, IL 60137

708-469-7300

1-800-334-5886

Cans Unlimited, Inc.

P. O. Box 645

Taylor, SC 29687

All States

803-879-3009

1-800-845-5301

Taratin Tank Co.

P.O. Box 6129

Freehold, NJ 07728

908-780-9340

Portable Heater Parts

342 N. Country Rd. 400E

Valparaiso, IN 46383

All States

219-462-7441

1-800-362-6951

East Coast Energy

833 Broadway

W. Long Branch, NJ 07764

908-870-8809

Dealers LP Equip. Co.

P.O. Box 341145

Bartlett, TN 38184

AL, TN

1-800-755-8809

FBD

901-386-8780

601 Hope Street

Bowling Green, KY 42101

502-796-8406

1-800-654-8534

ATP Services

990 Avenue of Americas

New York, NY 10018

212-967-6255

Capitol Hydronic Supply

104 West Jefferson Street

Falls Church, VA 22046

703-532-1622

American Air Dist.

537 W. 62nd Street

Shreveport, LA 71108

318-861-0634

Dayton Hardware

P. O. Box 275

North Dayton Station

Dayton, OH 45404

All States

Tuco Industrial Products

P.O. Box 5076

Lynwood, WA 98046

206-743-9533

Master Service Center

1184 Wilson

Grand Rapids, MI 49504

616-791-4760

513-258-3721

OH only 1-800-762-3426

1-800-735-1268

Auer Steel Supply

2935 W. Silver Spring Dr.

Milwaukee, WI 53209

414-463-1234

Central Air Supply

424 North Rockwell

Oklahoma City, OK 73127

405-495-0014

1-800-446-1446

100793

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Purchase these heater accessories from your local dealer. If they can not supply

these accessories, contact your nearest Parts Central (see page 36). You can also

write to the address listed on the back page of this manual for information.

ACCESSORIES

BLOWER KIT - PART NUMBER GA6010

For all models. Provides better heat distribution.

Makes heater more efficient. Complete installation

and operating instructions provided with blower.

MANUAL SHUTOFF

VALVE - GA5010

For all models. Manual shutoff valve

with 1/8" NPT tap.

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Thislistcontainsreplaceablepartsusedinyourheater. Whenorderingparts, followthe

instructions listed under Ordering Replacement Parts on page 36 of this manual.

ILLUSTRATED

PARTS LIST

Blower

Assembly

PART NUMBER FOR

KEY

NO. CGR65BPA

CGR65PA

——

CGR50BPA

099998-01

100045-01

231942

CGR50PA

——

CGR35PA

——

DESCRIPTION

Fan Switch

QTY.

099998-01

100045-01

231942

——

Wire Harness

——

Fan Limit Switch

Screw, #8-18 x 3/8"

Blower

M11084-38

100121-01

M11084-26

531001

——

M11084-38

100121-01

M11084-26

531001

——

Screw, #10-16 x 3/8"

Blower Pan

——

098304-01

099123-01

——

098304-01

099123-01

——

Screw, #10-24 x 3/8"

Thermobulb Clip

——

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instructions listed under Ordering Replacement Parts on page 36 of this manual.

ILLUSTRATED

PARTS LIST

Cabinet

Assembly for

Radiant Models

PART NUMBER FOR

KEY

NO. CGR65BPA

CGR65PA

CGR50BPA

CGR50PA

CGR35PA

DESCRIPTION

QTY.

100202-03

098304-01

100202-03

098304-01

100202-02

098304-01

100202-02

098304-01

100202-01

098304-01

Lower Front Panel

Screw, #10-16 x 3/8"

100053-03BS 100053-03BS 100053-02BS 100053-02BS 100053-01BS Hearth Assembly

(includes items 5 & 7)

Top Panel

100204-03

098304-02

M11084-26

——

100204-03

098304-02

M11084-26

——

100204-02

098304-02

M11084-26

——

100204-02

098304-02

M11084-26

——

100204-01

098304-02

——

Screw, #6-20 x 3/8"

Screw, #10-16 x 3/8"

M11084-26

100205-03BS 100205-03BS 100205-02BS 100205-02BS 100205-01BS Glass Guard

100203-03

099123-01

100203-03

099123-01

100203-02

099123-01

100203-02

099123-01

100203-01

099123-01

Cabinet Assembly

Thermobulb Clip

100101-03BS 100101-03BS 100101-02BS 100101-02BS 100101-01BS Cabinet Back

——

099997-01

——

099997-01

Switch Plug

PARTS AVAILABLE - NOT SHOWN

099988-02

Lighting Instructions

Decal

099987-02

100154-02

099987-02

100154-02

099987-02

100154-02

099987-02

100154-02

099987-02

100154-02

Control Position Decal

Warning Decal

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ILLUSTRATED

PARTS LIST

Burner

Assembly for

Radiant Models

50 and 65

Models

35 Model

Only

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Thislistcontainsreplaceablepartsusedinyourheater. Whenorderingparts, followthe

instructions listed under Ordering Replacement Parts on page 36 of this manual.

PARTS LIST

Burner

Assembly for

Radiant Models

PART NUMBER FOR

KEY

NO. CGR65BPA

CGR65PA

CGR50BPA

CGR50PA

CGR35PA

DESCRIPTION

QTY.

100729-03

098324-02

097159-01

098271-05

099974-03

063017

100729-03

098324-02

097159-01

098271-05

099974-03

063017

100729-02

098324-02

097159-01

098271-05

099974-02

100481-01

——

100729-02

098324-02

097159-01

098271-05

099974-02

100481-01

——

100729-01

098324-02

097159-01

098271-05

099974-01

063015

Combustion Chamber

Control Knob

Piezo Ignitor

Ignitor Cable

Control Rod

Limit Switch Bracket

Screw, #10-16 x 3/8"

Wire Assembly

Cotter Pin

M11084-26

——

M11084-26

——

M11084-26

——

M11084-26

099986-01

100000-01

231939

M11084-26

099986-01

100000-01

231939

099986-02

100000-01

231939

099986-02

100000-01

231939

099986-01

100000-01

231940

Limit Switch

M11084-38

——

M11084-38

——

M11084-38

——

M11084-38

——

Screw, #8-18 x 3/8"

Screw, #10-16 x 2 1/4"

Control Valve

M11084-38

099211-01

100207-02

098265-01

098936-02

100028-02

100307-01

171176

099211-01

100207-02

098265-01

098936-02

100028-02

100307-01

171176

099211-01

100207-02

098265-01

098936-02

100028-02

100307-01

171176

099211-01

100207-02

098265-01

098936-02

100028-02

100307-01

171176

099211-01

100207-02

098265-01

098936-02

100028-02

100307-01

171176

Elbow

Thermocouple Interrupter

Pilot Tubing

Thermocouple

Burner Tube

530988

Control Bracket

Orifice Holder

100309-01

180252

100309-01

180252

100309-01

530124

100309-01

530124

100309-01

100469-01

100384-01

100310-01

100308-02

M12461-25

098249-01

101342-01

Orifice

100706-01

100310-01

100308-02

M12461-25

098249-01

101342-03

100706-01

100310-01

100308-02

M12461-25

098249-01

101342-03

100385-01

100310-01

100308-02

M12461-25

098249-01

101342-02

100385-01

100310-01

100308-02

M12461-25

098249-01

101342-02

Burner Assembly

Pilot Mounting Bracket

Pilot (Includes 30 & 31)

Screw, 10-32 x 1/4"

Nut, M5 x 0.8

Glass Panel Package

(Includes Retainer)

Radiant

100772-01

——

100772-01

——

100772-01

——

100772-01

——

Radiant

——

100772-01

530192

Radiant

530192

100468-01

100465-01

530192

100468-01

100465-01

530192

Glass Spring

100468-01

100465-01

100468-01

100465-01

100468-01

100465-01

Pilot Electrode

Electrode Nut

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_________________________________________________________________

NOTES

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_________________________________________________________________

NOTES

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WARRANTY INFORMATION

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 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. It is the responsibility of

the consumer/owner to establish the warranty period. You are required to furnish proof of installation date, which may be a Bill of Sales

orotherpaymentrecordwhichverifiestheoriginalinstallation. Aneworremanufacturedparttoreplaceanydefectivepartwillbeprovided,

at DESA’s sole option, without charge for the part itself, FOB the shipping point. The exchanged part will be warranted for only the

unexpired portion of the original warranty. Defective parts must be returned to DESA, transportation charges prepaid, (DESA is not

responsible for any freight charges), where DESA will establish to its sole satisfaction that the part was or became defective under normal

useandmaintenance. Noreimbursementwillbemadefortransportation, diagnostics, shipping, handling, orotherincidentalexpenses. This

warranty applies only to the product in its original installation location and is voided if the product is reinstalled elsewhere.

LIMITED FOUR YEAR WARRANTY ON COMBUSTION CHAMBER

During the second through fifth years after the date of original installation, DESA further warrants the combustion chamber against defects

in material and workmanship under normal use and maintenance. A replacement combustion chamber will be provided under the same

conditions as stated in the one year warranty.

LIMITATION OF WARRANTIES

All implied warranties (including implied warranties of merchantability) are hereby limited in duration to the period for which each limited

warranty is given. Some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to

you. The expressed warranties made in this warranty are exclusive and may not be altered, enlarged, or changed by any distributor, dealer,

or other person whomsoever.

DESA WILL NOT BE RESPONSIBLE FOR:

1. Normal maintenance as outlined in the owner’s operation and installation manual including cleaning of component parts; such as,

orifices and burners.

2. Failure to start and/or operate due to voltage or gas condition, blown fuses, open circuit breakers, loose or disconnected wires, low gas

pressure, or other damages due to inadequacy or interruption of electrical service or gas supply.

3. Damage or repairs required as a consequence of faulty or incorrect installation not in conformance with DESA instructions.

4. Damage as a result of floods, winds, lightning, accidents, corrosive atmosphere, or other conditions beyond the control of DESA.

5. Parts or accessories not supplied by DESA.

6. Costs incurred in gaining access to the heater.

7. Damage or repairs needed as a consequence of any misapplication, abuse, unreasonable use, unauthorized alteration, improper

servicing, improper operation, or failure to provide reasonable and necessary maintenance.

8. Freight charges incurred from parts replacement.

9. DESA product installed outside the Continental U.S.A. and Alaska.

10. DESA products whose serial number has been altered, defaced, or removed.

11. Fuel or electricity costs or increases in such costs from any reason whatsoever.

12. Any special, indirect or consequential property, economic, or commercial damage of any nature whatsoever. Some states do not allow

the exclusion of incidental or consequential damages, so the above limitation may not apply to you.

No representative, dealer, or other person is authorized to assume for DESA International any additional, different, or other liability in

connection with the sale of this DESA product.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

For more information about this warranty, write:

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

100793-01

REV. D

11/94

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