Desa GVR50PA, GVR50BPA, GVR65BPA, GVR35PA, GVR65PA User Manual

®

VENTED PROPANE

GAS HEATERS

OWNER’S OPERATION AND INSTALLATION MANUAL

Models: GVR65BPA, GVR65PA, GVR50BPA, GVR50PA, GVR35PA

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.

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.

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

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury or loss of life. 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 .........................................................................	3
	Product Identification ....................................................................	5
	Local Codes ...................................................................................	6
	Unpacking ....................................................................................	6
	Product Features ............................................................................	6
	Installing Heater ............................................................................	6
	Check Gas Type ......................................................................	6
	Installation Items .....................................................................	6
	Locating Heater .......................................................................	7
	Venting Heater ........................................................................	8
	Connecting to Gas Supply ......................................................	11
	Checking Gas Connections .....................................................	13
	Installing Radiants ..................................................................	14
	Installing Glass Panel .............................................................	15
	Air For Combustion and Ventilation .............................................	17
	Determining Fresh-Air Flow for Heater Location
	Example 1: Locating Heater in Unconfined (Open) Area 18
	Draft Hood Spillage Test ............................................	18
	Providing Permanent Fresh-Air Ventilation ..............	19
	Example 2: Locating Heater in Confined (Closed) Area ..	20
	Ventilating Confined Area .........................................	20
	Operating Heater ...........................................................................	21
	For Your Safety Read Before Lighting ..................................	21
	Lighting Instructions ...............................................................	21
	Manual Lighting Procedure ....................................................	23
	Blower Operation (For Models with Blower) ........................	23
	To Turn Off Gas To Appliance ..............................................	23
	Inspecting Pilot and Burner Flame ................................................	24
	Pilot Flame Pattern ..................................................................	24
	Burner Flame Pattern ..............................................................	24
	Cleaning and Maintenance ............................................................	26
	Troubleshooting .............................................................................	27
	Service Procedures ........................................................................	32
	Removing Control Valve and Burner Tube ............................	32
	Removing Burner ....................................................................	33
	Changing Burner Orifice ........................................................	34
	Blower Wiring Diagram ................................................................	34
	Technical Service ..........................................................................	35
	Specifications ................................................................................	35
	Service Hints .................................................................................	35
	Ordering Replacement Parts ..........................................................	36
	Parts Centrals .................................................................................	36
	Accessories ....................................................................................	37
	Illustrated Parts List ......................................................................	38-41
	Warranty Information ....................................................................	Back Cover

2

100791

SAFETY
				WARNING ICON G 001 WARNINGS
INFORMATION			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
				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			3

100791

SAFETY INFORMATION

Continued

WARNINGS Continued

WARNING ICON

G 001

7.Provide the following minimum heater clearances from combustibles (as viewed from the front of heater):

Front: 48 inches

Back: 6 inches

Top: 53 inches

Right Side: 12 inches

Left Side: 6 inches

8.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.

4

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	PRODUCT	Control	Blower Switch
			(on models
	IDENTIFICATION
		Knob	equipped with
			blower)

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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	LOCAL CODES			Install and use heater with care. Follow all local codes. In the absence of local
				codes, use the latest edition of the following:
						• National Fuel Gas Code ANSI Z223.1, also known as NFPA 54 *
						• National Electrical Code ANSI/NFPA 70 *
						• National Standard of Canada CAN1-B149 **
				*Available from: American National Standards Institute, Inc., 1430 Broadway,
				New York, NY 10018; National Fire Protection Association, Inc., Batterymarch
				Park, Quincy, MA 02269.
				**Available from: Standards Council of Canada, 350 Sparks Street, Ottawa,
				Ontario K1R 7S8.
		UNPACKING		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.
		PRODUCT		Piezo Ignition System
				This heater has a piezo ignitor. This system requires no matches, batteries, or other
		FEATURES
				sources to light heater.
				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
							WARNING
		HEATER				WARNING ICON G 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
						(U.S.) or Canadian Electrical Code CSA C22.1 (Canada).
				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		•	test gauge connection * (see
					installer, see page 11)			Figure 7, page 12)
				•	piping (check local codes)		•	sediment trap
				•	sealant (resistant to propane gas)		•	tee joint
				• manual shutoff valve *			• pipe wrench
				•	ground joint union		•	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.
6				design-certified manual shutoff valve from your dealer. See Accessories, page 37.

100791

INSTALLING	LOCATING HEATER
HEATER		WARNING ICON G 001	WARNING
Continued		Maintain the minimum clearances shown in Figure 3,
		below. If you can, provide greater clearances.
		WARNING ICON G 001	WARNING
		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 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

G 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
6"
Minimum	53"
	Minimum

Left	Right
	Side
Side
		6" Minimum
		from Back
		12"
	48" Minimum from	Minimum
	Front of Heater	Continued
	Figure 3 - Heater Clearances		7

100791

INSTALLING	VENTING HEATER
HEATER	Note: Venting/chimney materials are not supplied with heater.
Continued
		WARNING ICON G 001 WARNING

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 prevent the heater from running. Follow all local codes.

WARNING

WARNING ICON

G 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

G 001

When venting this heater, follow the safety information listed below.

•Never vent heater to another room or inside a building. 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 prefabricated 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.

8

100791

INSTALLING HEATER

Continued

VENTING HEATER (continued)

WARNING

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

Heater must be vented to the out-

The vertical section of vent pipe must

doors. Never vent heater to another

extend at least two feet above the

room or inside a building.

highest point of any roof within ten

feet.

	Never extend vent pipe horizontally					Never extend vent pipe horizontally
						through a chimney or flue. You must
	through outside wall and terminate.
						connect a vertical run of vent pipe to
	You must connect a vertical run of
						the horizontal run. The vertical run
	vent pipe to the horizontal run. The
						must be at least 25% longer or five
	vertical run must be at least 25%
						feet minimum than the horizontal run.
	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		9

100791

Terminate at least 5' above draft hood. If vent extends over 5' above roof, support with guy wires or braces.

INSTALLING	VENTING HEATER (continued)
HEATER	Proper Size Vent

To safely vent heater, the vent connector pipe must be the same diameter as the draft Continued hood outlet on the rear of the heater. Pipe that is too small can cause flue gas to spill

from the heater. Fasten vent connector to the draft hood outlet with a sheet metal screw.

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 currently 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.

Vent Cap	Seal Around
	Collar and
Must Be At	Flashing
Least 2 Feet
Above
Highest Point
Within 10
Feet.

	Maintain Listed		Lock
	Clearance of Vent
			Joints
		Position	Support
		Firestop
	Support If		Laterals
	Necessary
	Lock Joints	Maintain Listed
		Clearance of	53"
	6"	Vent
5'			Min.
Min.	Min.
		Vertical Vent
	Lock Joints
	Heater	Heater
	Vent
	Connector

		Prefabricated or Masonry	Type-B Vent
		All-Fuel Chimney
		Figure 5 - Typical Construction of Venting Systems
	10

100791

INSTALLING	CONNECTING TO GAS SUPPLY
HEATER
		WARNING ICON G 001 WARNING
Continued
		A qualified service person must connect heater to gas
		supply. Follow all local codes.
		WARNING ICON G 001 CAUTION
		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 Pointing Down

Figure 6 - External Regulator with Vent Pointing Down

CAUTION

WARNING ICON

G 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 11

100791

INSTALLING	Installation must include a manual shutoff valve, ground joint union, plugged 1/8"
HEATER	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).
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.
							WARNING ICON G 001	CAUTION
		Use pipe joint sealant that is resistant to liquid petro-
		leum (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
		Control						of inlet gas
								line
		Valve

				From External
				Regulator (11"
			Manual	W.C. Min** to
				14" W.C. Max)
			Shutoff
	Ground		Valve *
	Joint
	Union			Preferred
				construction
				of inlet gas
		Reducer		line
		Bushing to
	Test	1/8" NPT
		1/8" NPT		From
	Gauge
				External
	Connection*	Plug Tap	Tee Joint
				Regulator
		Tee Joint
			Pipe	(11" W.C.
		Sediment		Min** to
			Nipple
		Trap		14" W.C.
			Cap	Max)
		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.
12	** For purposes of input adjustment.
				100791

INSTALLING CHECKING GAS CONNECTIONS
HEATER		WARNING ICON G 001 WARNING
Continued		Test all gas piping and connections for leaks after install-
		ing or servicing. Correct all leaks at once.
		WARNING ICON G 001 WARNING
		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.
		WARNING ICON G 001 CAUTION
		Make sure external regulator has been installed be-
		tween propane supply and heater. See guidelines under
		Connecting 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).

PO On Position

Off Position	Continued
Figure 8 - Manual Shutoff Valve	13

100791

INSTALLING	INSTALLING RADIANTS
HEATER	WARNING ICON G 001 WARNING
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	Lower Front
		Access Area
	Front Access
	Panel	Glass Retaining
		Channel
		Figure 9 - Location of Radiants
		Back Radiant Support
		Radiant

Burner

Front Radiant Support

Figure 10 - Position of Radiant

14

100791