Desa Hrb3624 Users Manual

HRB3624 1af57e6a-cb74-9ec4-c5ed-f8c5f94ce2e9

VUL18, VUL24, VUL30 to the manual 1af57e6a-cb74-9ec4-c5ed-f8c5f94ce2e9

2015-02-04

: Desa Desa-Hrb3624-Users-Manual-512126 desa-hrb3624-users-manual-512126 desa pdf

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WARNING: If the information in this manual is not fol-

lowed exactly, a re or explosion may result causing

property damage, personal injury or loss of life.

— Do not store or use gasoline or other ammable

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 re

department.

— Installation and service must be performed by a quali-

ed installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for future reference.

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

Remote-Ready Models VUL18/24/30(N,P)R, HRB3930/3924(N,P)R

and CRB2618/3624/3630(N,P)R

Thermostatically-Controlled Models VUL18/24/30(N,P)T and

HRB3624(N,P)T

Remote-Ready Models Also Design-Certied As

Vented Decorative Appliances

www.desatech.com 119426-01A2

SAFETy INFORMATION

TAbLE OF CONTENTS

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

Product Identication ........................................... 5

Local Codes......................................................... 5

Optional Remote Control Accessories ................. 5

Unpacking............................................................ 5

Product Features ................................................. 5

Air For Combustion and Ventilation ..................... 6

Installation ........................................................... 8

Operating Heater ............................................... 20

Inspecting Burners............................................. 25

Cleaning and Maintenance ................................ 26

Wiring Diagram .................................................. 27

Troubleshooting ................................................. 28

Optional Positioning of Thermostat

Sensing Bulb ................................................. 32

Specications .................................................... 33

Illustrated Parts Breakdown and Parts List........ 34

Service Hints ..................................................... 42

Technical Service............................................... 42

Replacement Parts ............................................ 42

Accessories ....................................................... 42

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

WARNING: Improper in-

stallation, adjustment, al-

teration, service or main-

tenance can cause injury

or property damage. Refer

to this manual for correct

installation and operation-

al procedures. For assis-

tance or additional infor-

mation consult a qualied

installer, service agency

or the gas supplier.

WARNING: This appliance

is for installation only in a

solid-fuel burning mason-

ry or UL127 factory-built

replace or in a listed vent-

less rebox enclosure. It is

design-certied for these

installations in accordance

with ANSI Z21.11.2. Excep-

tion: Do not install this

appliance in a factory-built

fireplace that includes

instructions stating it has

not been tested or should

not be used with unvented

gas logs.

WARNING: This is an

unvented gas-red heat-

er. It uses air (oxygen)

from the room in which

it is installed. Provisions

for adequate combustion

and ventilation air must

be provided. Refer to Air

for Combustion and Ven-

tilation section on page 6

of this manual.

This appliance may be in-

stalled in an aftermarket,*

permanently located,

manufactured (mobile)

home, where not prohib-

ited by local codes.

This appliance is only for

use with the type of gas

indicated on the rating

plate. This appliance is

not convertible for use

with other gases.

* Aftermarket: Completion of sale, not for

purpose of resale, from the manufacturer

www.desatech.com

119426-01A 3

WARNING: This product con-

tains and/or generates chemicals

known to the state of California

to cause cancer or birth defects

or other reproductive harm.

IMPORTANT: Read this owner’s

manual carefully and completely

before trying to assemble, op-

erate or service this replace.

Improper use of this replace

can cause serious injury or

death from burns, re, explo-

sion, 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 u, with head-

aches, dizziness or nausea. If you have these signs,

the replace may not be working properly. Get

fresh air at once! Have replace 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

inuence of alcohol and those at high altitudes.

Natural and Propane/LP

gases are odorless. An

odor-making agent is added to these gases. The

odor helps you detect a gas leak. However, the odor

added to the gas can fade. 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 replace.

WARNING: Any change to

this heater or its controls can

be dangerous.

WARNING: Do not use a

blower insert, heat exchanger

insert or other accessory not ap-

proved for use with this heater.

SAFETy INFORMATION

Continued WARNING: Do not allow fans

to blow directly into the replace.

Avoid any drafts that alter burner

ame patterns. Ceiling fans can

create drafts that alter burner

ame patterns. Altered burner

patterns can cause sooting.

Due to high temperatures, the

appliance should be located out

of trafc and away from furniture

and draperies.

Do not place clothing or other

ammable material on or near

the appliance. Never place any

objects on the heater.

Heater base assembly becomes

very hot when running heater.

Keep children and adults away

from hot surface to avoid burns

or clothing ignition. Heater

will remain hot for a time after

shutdown. Allow surface to cool

before touching.

Carefully supervise young chil-

dren when they are in the room

with heater. When using the hand-

held remote accessory (Remote-

Ready Models Only), keep selec-

tor switch in the OFF position to

prevent children from turning on

burners with remote.

You must operate this heater

with the replace screen and

hood in place. Make sure re-

place screen and hood are in

place before running heater.

Keep the appliance area clear

and free from combustible ma-

terials, gasoline and other am-

mable vapors and liquids.

www.desatech.com 119426-01A4

SAFETy INFORMATION

Continued

This appliance is only for use with the type of

gas indicated on the rating plate. This appliance

is not convertible for use with other gases.

2. Do not place propane/LP supply tank(s) in-

side any structure. Locate propane/LP supply

tank(s) outdoors (propane/LP units only).

3. 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 re department

4. This heater shall not be installed in a bedroom

or bathroom, unless installed as a vented appli-

ance. See Installing Damper Clamp Accessory

for Vented Operation, page 12 (Remote-Ready

Models Only).

5. Before installing in a solid fuel burning

replace, the chimney ue and rebox must

be cleaned of soot, creosote, ashes and loose

paint by a qualied chimney cleaner. Creosote

will ignite if highly heated. A dirty chimney

ue may create and distribute soot within

the house. Inspect chimney ue for damage.

If damaged, repair ue and rebox before

operating heater.

6. Do not burn solid-fuel in a masonry or UL127

factory-built replace in which a vent-free

room heater is installed.

7. If replace has glass doors, never operate this

heater with glass doors closed. If you operate

heater with doors closed, heat buildup inside

replace will cause glass to burst. Make sure

there are no obstructions across openings of

replace.

8. To prevent the creation of soot, follow the

instructions in Cleaning and Maintenance,

page 26.

9. Before using furniture polish, wax, carpet

cleaner or similar products, turn heater off. If

heated, the vapors from these products may

create a white powder residue within burner

box or on adjacent walls and furniture.

10. This heater needs fresh, outside air ventilation

to run properly. This heater has an Oxygen

Depletion Sensing (ODS) safety shutoff system.

The ODS shuts down the heater if enough fresh

air is not available. See Air for Combustion and

Ventilation, page 6. If heater keeps shutting off,

see Troubleshooting, page 28.

11. Do not run heater

• where ammable liquids or vapors are used

or stored

• under dusty conditions

12. Do not use this heater to cook food or burn

paper or other objects.

13. Do not use heater if any part has been exposed

to or under water. Immediately call a qualied

service technician to inspect the room heater

and to replace any part of the control system

and any gas control which has been under

water.

14. Do not operate heater if any log is broken. Do

not operate heater if a log is chipped (dime-

sized or larger).

15. Turn heater off and let cool before servicing,

installing or repairing. Make sure the selector

switch is in the OFF position (Remote-Ready

Models Only). Only a qualied service person

should install, service or repair heater.

16. Make sure the selector switch is in the OFF

position when you are away from home for

long periods of time (Remote-Ready Models

Only).

17. Remote-ready heaters must not be connected

to any external electrical source.

18. Operating heater above elevations of 4,500

feet may cause pilot outage.

19. To prevent performance problems, do not

use propane/LP fuel tank of less than 100 lb.

capacity (propane/LP units only).

20. Provide adequate clearances around air

openings.

UNPACkING

CAUTION: Do not remove the

data plates from the grate assembly.

The data plates contain important

warranty and safety information.

1. Remove logs and heater base assembly from

carton. Note: Do not pick up heater base as-

sembly by burners. This could damage heater.

Always handle base assembly by grate.

2. Remove all protective packaging applied to

logs and heater for shipment.

3. Check all items for any shipping damage. If

damaged, promptly inform dealer where you

bought heater.

www.desatech.com

119426-01A 5

PRODUCT

IDENTIFICATION

Figure 1 - Product Identication

Base

Assembly

Control Knob

Ignitor

Model VUL

Series Logs

Control

Knob Base

Assembly

Ignitor

Rear Burner

Flame

Adjustment

Knob

Remote

Control

(Optional)

OPTIONAL REMOTE

CONTROL ACCESSORIES

There are four optional remote controls that

can be purchased separately for Remote-Ready

Models Only:

• wall switch • hand-held ON/OFF remote

• wall thermostat • hand-held thermostat remote

See Accessories, page 42.

The wall thermostat or hand-held thermostat may not

be used where vented decorative listing is required.

PRODUCT FEATURES

OPERATION

This heater is clean burning. It requires no outside

venting. There is no heat loss out a vent or up a

chimney. Heat is generated by both realistic ames

and glowing coals. This heater is designed for vent-

free operation with ue damper closed. It has been

tested and approved to ANSI Z21.11.2 standard for

unvented heaters. State and local codes in some

areas prohibit the use of vent-free heaters. This

heater may also be operated as a vented decorative

(ANSI Z21.60) product by opening the ue damper

(Non-Thermostat Models Only).

SAFETY DEVICE

This heater has a pilot with an Oxygen Deple-

tion Sensing (ODS) safety shutoff system. The

ODS/pilot is a required feature for vent-free room

heaters. The ODS/pilot shuts off the heater if there

is not enough fresh air.

ELECTRONIC IGNITION SYSTEM

This heater has an electronic ignitor to light heater

fuel supply.

Model CRB and

HRB Series Logs

LOCAL CODES

Install and use heater with care. Follow all local

codes. In the absence of local codes, use the lat-

est edition of The National Fuel Gas Code, ANSI

Z223.1/NFPA 54*.

*Available from:

American National Standards Institute, Inc.

1430 Broadway

New York, NY 10018

National Fire Protection Association, Inc.

Batterymarch Park

Quincy, MA 02269

State of Massachusetts: The installa-

tion must be made by a licensed plumber

or gas fitter in the Commonwealth of

Massachusetts.

Sellers of unvented propane or natural

gas-red supplemental room heaters shall

provide to each purchaser a copy of 527

CMR 30 upon sale of the unit.

Vent-free gas products are prohibited for

bedroom and bathroom installation in the

Commonwealth of Massachusetts.

www.desatech.com 119426-01A6

AIR FOR COMbUSTION

AND VENTILATION

WARNING: This heater shall

not be installed in a conned

space or unusually tight construc-

tion unless provisions are provid-

ed for adequate combustion and

ventilation air. Read the following

instructions to insure proper fresh

air for this and other fuel-burning

appliances in your home.

Today’s homes are built more energy efcient

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 ef-

cient, your home needs to breathe. Fresh air must

enter your home. All fuel-burning appliances need

fresh air for proper combustion and ventilation.

Exhaust fans, replaces, clothes dryers and fuel

burning appliances draw air from the house to

operate. You must provide adequate fresh air for

these appliances. This will insure proper venting

of vented fuel-burning appliances.

PROVIDING ADEQUATE

VENTILATION

The following are excerpts from National Fuel

Gas Code, ANSI Z223.1/NFPA 54, Section 5.3,

Air for Combustion and Ventilation.

All spaces in homes fall into one of the three fol-

lowing ventilation classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

The information on pages 6 through 8 will help

you classify your space and provide adequate

ventilation.

Unusually Tight Construction

The air that leaks around doors and windows

may provide enough fresh air for combustion and

ventilation. However, in buildings of unusually

tight construction, you must provide additional

fresh air.

Unusually tight construction is dened as

construction where:

a. walls and ceilings exposed to the out-

side atmosphere have a continuous

water vapor retarder with a rating of

one perm (6 x 10-11 kg per pa-sec-m2) or

less with openings gasketed or sealed

and

b. weather stripping has been added on

openable windows and doors and

c. caulking or sealants are applied to

areas such as joints around window

and door frames, between sole plates

and oors, between wall-ceiling joints,

between wall panels, at penetrations

for plumbing, electrical and gas lines

and at other openings.

If your home meets all of the three criteria

above, you must provide additional fresh

air. See Ventilation Air From Outdoors,

page 8.

If your home does not meet all of the

three criteria above, proceed to Determin-

ing Fresh-Air Flow For Heater Location,

below.

Conned and Unconned Space

The National Fuel Gas Code, ANSI Z223.1/NFPA

54 denes a conned space as a space whose

volume is less than 50 cubic feet per 1,000 Btu

per hour (4.8 m3 per kw) of the aggregate input

rating of all appliances installed in that space and

an unconned space as a space whose volume is

not less than 50 cubic feet per 1,000 Btu per hour

(4.8 m3 per kw) of the aggregate input rating of

all appliances installed in that space. Rooms com-

municating directly with the space in which the

appliances are installed*, through openings not

furnished with doors, are considered a part of the

unconned space.

* Adjoining rooms are communicating only if

there are doorless passageways or ventilation grills

between them.

DETERMINING FRESH-AIR FLOW

FOR HEATER LOCATION

Determining if You Have a Conned or

Unconned Space

Use this work sheet to determine if you have a

conned or unconned space.

www.desatech.com

119426-01A 7

AIR FOR COMbUSTION

AND VENTILATION

Continued

Space: Includes the room in which you will install

replace plus any adjoining rooms with doorless pas-

sageways or ventilation grills between the rooms.

1. Determine the volume of the space (length x

width x height).

Length x Width x Height =__________cu. ft.

(volume of space)

Example: Space size 20 ft. (length) x 16 ft.

(width) x 8 ft. (ceiling height) = 2560 cu. ft.

(volume of space)

If additional ventilation to adjoining room is

supplied with grills or openings, add the volume

of these rooms to the total volume of the space.

2. Multiply the space volume by 20 to determine

the maximum Btu/Hr the space can support.

__________ (volume of space) x 20 = (Maxi-

mum Btu/Hr the space can support)

Example: 2560 cu. ft. (volume of space) x 20 =

51,200 (maximum Btu/Hr the space can support)

3. Add the Btu/Hr of all fuel burning appliances in

the space.

Vent-free replace ___________ Btu/Hr

Gas water heater* ___________ Btu/Hr

Gas furnace ___________ Btu/Hr

Vented gas heater ___________ Btu/Hr

Gas replace logs ___________ Btu/Hr

Other gas appliances* + __________ Btu/Hr

Total = __________ Btu/Hr

* Do not include direct-vent gas appliances. Di-

rect-vent draws combustion air from the outdoors

and vents to the outdoors.

Example:

Gas water heater ___________ Btu/Hr

Vent-free replace + __________ Btu/Hr

Total = __________ Btu/Hr

4. Compare the maximum Btu/Hr the space can

support with the actual amount of Btu/Hr used.

__________ Btu/Hr (maximum the space can support)

__________Btu/Hr (actual amount of Btu/Hr used)

Example: 51,200 Btu/Hr (maximum the space

can support)

73,000 Btu/Hr (actual amount of

Btu/Hr used)

The space in the above example is a conned space

because the actual Btu/Hr used is more than the maxi-

mum Btu/Hr the space can support. You must provide

additional fresh air. Your options are as follows:

A. Rework worksheet, adding the space of an adjoin-

ing room. If the extra space provides an unconned

space, remove door to adjoining room or add

ventilation grills between rooms. See Ventilation

Air From Inside Building.

B. Vent room directly to the outdoors. See Ventila-

tion Air From Outdoors, page 8.

C. Install a lower Btu/Hr replace, if lower Btu/Hr

size makes room unconned.

If the actual Btu/Hr used is less than the maximum

Btu/Hr the space can support, the space is an un-

conned space. You will need no additional fresh

air ventilation.

WARNING: If the area in

which the heater may be oper-

ated is smaller than that dened

as an unconned space or if the

building is of unusually tight

construction, provide adequate

combustion and ventilation air

by one of the methods described

in the National Fuel Gas Code,

ANSI Z223.1/NFPA 54 Section 5.3

or applicable local codes.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining un-

conned space. When ventilating to an adjoining

unconned space, you must provide two perma-

nent openings: one within 12" of the ceiling and

one within 12" of the oor on the wall connecting

the two spaces (see options 1 and 2, Figure 2). You

can also remove door into adjoining room (see

option 3, Figure 2). Follow the National Fuel Gas

Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for

Combustion and Ventilation for required size of

ventilation grills or ducts.

40,000

33,000

73,000

Figure 2 - Ventilation Air from Inside Building

Remove

Door into

Adjoining

Room,

Option

Ventilation Grills

Into Adjoining Room,

Option 2

Ventilation

Grills Into

Adjoining

Room,

Option 1

12"

www.desatech.com 119426-01A8

AIR FOR COMbUSTION

AND VENTILATION

Continued

Ventilation Air From Outdoors

Provide extra fresh air by using ventilation grills or

ducts. You must provide two permanent openings:

one within 12" of the ceiling and one within 12"

of the oor. Connect these items directly to the

outdoors or spaces open to the outdoors. These

spaces include attics and crawl spaces. Follow the

National Fuel Gas Code, ANSI Z223.1/NFPA 54,

Section 5.3, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

IMPORTANT: Do not provide openings for inlet

or outlet air into attic if attic has a thermostat-

controlled power vent. Heated air entering the attic

will activate the power vent.

Figure 3 - Ventilation Air from Outdoors

Outlet

Air

Ventilated

Attic

Outlet

Inlet

Air

Inlet Air Ventilated

Crawl Space

Crawl

Space

To Attic

INSTALLATION

NOTICE: This heater is intended

for use as supplemental heat.

Use this heater along with your

primary heating system. Do not

install this heater as your pri-

mary heat source. If you have a

central heating system, you may

run system’s circulating blower

while using heater. This will help

circulate the heat throughout the

house. In the event of a power

outage, you can use this heater

as your primary heat source.

WARNING: A qualied ser-

vice person must install heater.

Follow all local codes.

NOTICE: State or local codes

may only allow operation of this

appliance in a vented congura-

tion. Check your state or local

codes.

WARNING: Make sure the

selector switch is in the OFF

position before installing heater

(Remote-Ready Models Only).

WARNING: Before installing

in a solid fuel burning replace,

the chimney ue and rebox

must be cleaned of soot, creo-

sote, ashes and loose paint by

a qualified chimney cleaner.

Creosote will ignite if highly

heated. A dirty chimney ue may

create and distribute soot within

the house. Inspect chimney and

rebox ue for damage. If dam-

aged, repair ue and rebox

before operating heater.

WARNING: Seal any fresh

air vents or ash clean-out doors

located on oor or wall of re-

place. If not, drafting may cause

pilot outage or sooting. Use a

heat-resistant sealant. Do not

seal chimney ue damper.

WARNING: Never install the

heater

• in a bedroom or bathroom

unless installed as a vented

appliance, see page 12 (Re-

mote-Ready Models Only)

• in a recreational vehicle

•

where curtains, furniture, cloth-

ing or other ammable objects

are less than 42" from the front,

top or sides of the heater

• in high trafc areas

• in windy or drafty areas

www.desatech.com

119426-01A 9

MINIMUM FIREPLACE CLEARANCE TO

COMBUSTIBLE MATERIALS

Log Size 18", 24", 30"

Side Wall 16"

Ceiling 42"

Floor 5"

LOG SIZING REQUIREMENTS

Minimum Firebox Size

Log Front Rear*

Size Height Depth Width Width

18" 17" 14" 20" 14"

24" 17" 14" 26" 18"

30" 17" 14" 32" 22"

*Measured at 14" depth

CAUTION: This heater cre-

ates warm air currents. These

currents move heat to wall sur-

faces next to heater. Installing

heater next to vinyl or cloth wall

coverings or operating heater

where impurities (such as, but

not limited to, tobacco smoke,

aromatic candles, cleaning u-

ids, oil or kerosene lamps, etc.) in

the air exist, may discolor walls

or cause odors.

IMPORTANT: Vent-free heaters add moisture to

the air. Although this is benecial, installing heater

in rooms without enough ventilation air may cause

mildew to form from too much moisture. See Air

for Combustion and Ventilation, page 6.

CHECK GAS TYPE

Use the correct type of gas (natural or propane/LP).

If your gas supply is not the correct gas type, do

not install heater. Call dealer where you bought

heater for proper type heater.

WARNING: This appliance

is equipped for natural or pro-

pane/LP gas. Field conversion

is not permitted.

INSTALLATION AND CLEARANCES

FOR VENT-FREE OPERATION

WARNING: Maintain the

minimum clearances. If you

can, provide greater clearances

from oor, ceiling and adjoining

wall.

INSTALLATION

Continued

Carefully follow the instructions below. This will

ensure safe installation into a masonry, UL127-

listed manufactured replace or listed vent-free

rebox.

Minimum Clearances For Side

Combustible Material, Side Wall and

Ceiling

A. Clearances from the side of the fireplace

cabinet to any combustible material and wall

should follow diagram in Figure 4.

Example: The face of a mantel, bookshelf,

etc. is made of combustible material and

protrudes 3 1/2" from the wall. This combus-

tible material must be 4" from the side of the

replace cabinet (see Figure 4).

Note: When installing your gas logs into

a manufactured firebox, follow firebox

manufacturer’s instructions for minimum

clearances to combustible materials.

B. Clearances from the top of the fireplace

opening to the ceiling should not be less than

42".

Figure 4 - Minimum Clearance for

Combustible to Wall

*Minimum 16" from Side Wall

Example

www.desatech.com 119426-01A10

INSTALLATION

Continued

NOTICE: Manual control heaters

may be used as a vented product.

If so, you must always run heater

with chimney ue damper open.

If running heater with damper

open, noncombustible material

above replace opening is not

needed. Go to Installing Damper

Clamp Accessory for Vented

Operation, page 12.

Minimum Noncombustible Material

Clearances

If Not Using Mantel

Note: If using a mantel proceed to If Using Mantel.

If not using a mantel, follow the information on

this page.

You must have noncombustible material(s) above

the replace opening. Noncombustible materials

(such as slate, marble, tile, etc.) must be at least

1/2" thick. With sheet metal, you must have non-

combustible material behind it. Noncombustible

material must extend at least 8" up (for all models).

If noncombustible material is less than 12", you

must install the replace hood accessory (24" and

30" Models Only). See Figure 5 for minimum

clearances.

If Using Mantel

You must have noncombustible material(s) above

the replace opening. Noncombustible materials

(such as slate, marble, tile, etc.) must be at least

1/2" thick. With sheet metal, you must have non-

combustible material behind it. Noncombustible

material must extend at least 8" up (for all models).

If noncombustible material is less than 12", you

must install the replace hood accessory (24"

and 30" Models Only). Even if noncombustible

material is more than 12", you may need the hood

accessory to deect heat away from your mantel

shelf. See Figure 5 and Figures 6 and 7, page 9,

for minimum clearances.

IMPORTANT: If you cannot meet these minimum

clearances, you must operate heater with chimney

ue damper open. Go to Installing Damper Clamp

Accessory for Vented Operation, page 12.

Heat Resistant

Material

(A)

Figure 5 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

Noncombustible

Material Requirements for

Distance (A) Safe Installation

2" or more Noncombustible mate-

rial OK.

Between 8" and 12"

24" or 30" Models:

Install fireplace hood

accessory (GA6050,

GA6052 or GA6053 see

Accessories, page 42).

18" Model: Noncombus-

tible material OK.

Less than 8"

Noncombustible mate-

rial must be extended to

at least 8". See Between

8" and 12", above. If you

cannot extend material,

you must operate heater

with ue damper open.

MANTEL CLEARANCES

In addition to meeting noncombustible material

clearances, you must also meet required clearances

between replace opening and mantel shelf. If

you do not meet the clearances listed below, you

will need a hood.

Determining Minimum Mantel Clearance

If you meet minimum clearance between mantel

shelf and top of replace opening, a hood is not

required (see Figure 6, page 11).

Determining Minimum Mantel Clearance

When Using a Hood

If minimum clearances in Figure 6, page 11, are

not met, you must have a hood. When using a hood

there are still certain minimum mantel clearances

required. Follow minimum clearances shown in

Figure 7, page 11, when using hood.

www.desatech.com

119426-01A 11

INSTALLATION

Continued

NOTICE: Surface temperatures

of adjacent walls and mantels be-

come hot during operation. Walls

and mantels above the rebox

may become hot to the touch.

If installed properly, these tem-

peratures meet the requirement

of the national product standard.

Follow all minimum clearances

shown in this manual.

NOTICE: If your installation does

not meet the minimum clear-

ances shown, you must do one

of the following:

• operate the logs only with the

ue damper open

• raise the mantel to an accept-

able height

• remove the mantel

Figure 6 - Minimum Mantel Clearances

Without Using Hood

14"

Min.

Combustible

Material

Noncombustible Material

Figure 8 - Minimum Fireplace Clearances

If Installed at Floor Level

Figure 7 - Minimum Mantel Clearances

When Using Hood

Minimum Non-

Combustible

Material

Minimum Non-

Combustible

Material Height

Distances to

Underside of

Mantel

Top of

Fireplace

Opening

Underside of

Mantel Shelf

12"

(A)

18"

14"

20"

17"

22"

19"

24"

20"

All minimum

distances are

in inches

Log Set

24"/30"/36"

Models

18" Model

1/2

10"

Mantel Shelf

Minimum

Noncombustible

Material

Min.

12" 15" 18"

All minimum

distances are

in inches

Log Sets

18", 24",

& 30"

Models

20"

1/2

10"

12"

Distances to

Underside of

Mantel

Hood

(GA6050,

GA6052,

or GA6053)

Top of

Fireplace

Opening

Underside of

Mantel Shelf

FLOOR CLEARANCES

A. If installing appliance on the oor level, you

must maintain the minimum distance of 14"

to combustibles (see Figure 8).

B. If combustible materials are less than 14" to

the replace, you must install appliance at

least 5" above the combustible ooring (see

Figure 9).

Hearth

Min.

Combustible

Material

Figure 9 - Minimum Fireplace Clearances

Above Combustible Flooring

www.desatech.com 119426-01A12

INSTALLATION

Continued

INSTALLING DAMPER CLAMP

ACCESSORY FOR VENTED

OPERATION

Note: When used as a vented heater, appliance

must be installed only in a solid-fuel burning

replace with a working ue and constructed of

noncombustible material.

If your heater is a manually-controlled model, you

may use this heater as a vented product. There

are three reasons for operating your heater in the

vented mode.

1. The replace does not meet the clearance

to combustibles requirements for vent-free

operation.

2. State or local codes do not permit vent-free

operation.

3. You prefer vented operation.

If reasons number 1 or 2 above apply to you, you

must permanently open chimney ue damper. You

must install the damper clamp accessory (to order,

see Accessories, page 42). This will insure vented

operation (see Figure 10). The damper clamp will

keep damper open. Installation instructions are

included with clamp accessory.

See chart below for minimum permanent ue

opening you must provide. Attach damper clamp

so the minimum permanent ue opening will be

maintained at all times.

Area of Various Standard Round Flues

Diameter Are

5" 20 sq. inches

6" 29 sq. inches

7" 39 sq. inches

8" 51 sq. inches

Chimney Minimum Permanent

Height Flue Opening

6' to 15' 39 sq. inches

15' to 30' 29 sq. inches

Damper

Clamp

Damper

Clamp

Damper

Figure 10 - Attaching Damper Clamp

Manufactured Fireplace

Masonry Fireplace

INSTALLING HEATER BASE

ASSEMBLY

WARNING: You must secure

this heater to replace oor. If

not, heater will move when you

adjust controls. Moving heater

may cause a gas leak.

WARNING: If installing in a

sunken replace, special care

is needed. You must raise the

replace oor to allow access to

heater control panel. This will in-

sure adequate air ow and guard

against sooting and controls be-

ing damaged. Raise replace oor

with noncombustible material.

Make sure material is secure.

CAUTION: Do not pick up

heater base assembly by burn-

ers. This could damage heater.

Only handle base assembly by

grates.

www.desatech.com

119426-01A 13

INSTALLATION

Continued

IMPORTANT: Make sure the heater burners are

level. If heater is not level, heater will not work

properly. For thermostat models, avoid damage

to thermostat bulb. Avoid nicks or sharp bends

in thermostat bulb wire. Keep thermostat bulb

in mounting bracket until ready to mount base

to oor. See Optional Positioning Of Thermostat

Sensing Bulb, page 32.

Installation Items Needed

• hardware package (provided with heater)

• approved exible gas hose and ttings (not

provided) (if allowed by local codes)

• sealant (resistant to propane/LP gas, not pro-

vided)

• electric drill with 3/16” masonry drill bit

Note: Install optional GHRCTB Receiver and

Hand-Held Remote Control Kit (see Accessories,

page 42) before installing gas log heater (Remote-

Ready Models Only). See installation instructions

included with the kit.

1. Apply pipe joint sealant lightly to male threads

of gas tting (not provided). For Thermostati-

cally-Controlled Models connect approved

exible gas hose to gas regulator of heater

(see Figure 11). For Remote-Ready models

connect approved exible gas hose to inlet

side of gas control (see Figure 12). IMPOR-

TANT: Hold gas regulator with wrench when

connecting exible gas hose (Thermostati-

cally-Controlled Models Only).

2. Position heater base assembly in replace.

3. Mark screw locations through holes in front

panel of base (see Figure 13). If installing in a

brick-bottom replace, mark screw locations

in mortar joint of bricks.

4. Remove heater base from replace.

5. Drill holes at marked locations using 3/16"

drill bit.

Attach base, through holes in front panel of base,

to replace oor using masonry screws provided

in hardware package (see Figure 13).

7. Connect to gas supply. See Connecting To Gas

Supply, page 14.

Heater Gas

Regulator

Flexible Gas Hose (if

allowed by local codes)

Figure 11 - Attaching Flexible Gas Hose to

Heater Gas Regulator (Thermostatically-

Controlled Models Only)

Figure 12 - Attaching Flexible Gas Hose

to Heater Gas Regulator

(Remote-Ready Models Only)

Gas Control

Flexible Gas Hose

(if allowed by local

codes)

Figure 13 - Attaching Base to Fireplace

Floor (Remote-Ready Models Only)

Masonry Screw

www.desatech.com 119426-01A14

CONNECTING TO GAS SUPPLY

WARNING: This appliance

requires a 1/2" NPT (National

Pipe Thread) inlet connection to

the pressure regulator.

WARNING: A qualied ser-

vice person must connect heater

to gas supply. Follow all local

codes.

CAUTION: Never connect

propane/LP replace directly

to the propane/LP supply. This

heater requires an external regu-

lator (not supplied). Install the

external regulator between the

heater and propane/LP supply.

WARNING: Never connect

natural gas replace to private

(non-utility) gas wells. This

gas is commonly known as

wellhead gas.

Installation Items Needed

Before installing heater, make sure you have the

items listed below.

• external regulator (supplied by installer)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• test gauge connection *

• sediment trap

• tee joint

• pipe wrench

• approved exible gas line with gas connector

(if allowed by local codes) (not provided)

* A CSA design-certied equipment shutoff valve

with 1/8" NPT tap is an acceptable alternative to

test gauge connection. Purchase the optional CSA

design-certied equipment shutoff valve from your

dealer. See Accessories, page 42.

For propane/LP units, 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" of

water. If you do not reduce incoming gas pres-

sure, heater regulator damage could occur. Install

external regulator with the vent pointing down

as shown in Figure 14. Pointing the vent down

protects it from freezing rain or sleet.

CAUTION: Use only new,

black iron or steel pipe. In-

ternally-tinned copper tubing

may be used in certain areas.

Check your local codes. Use

pipe of 1/2" diameter or greater

to allow proper gas volume to

heater. If pipe is too small, undue

loss of volume will occur.

Propane/LP

Supply Tank External

Regulator

Figure 14 - External Regulator With Vent

Pointing Down

Vent

Pointing

Down

INSTALLATION

Continued

www.desatech.com

119426-01A 15

Pipe Cap Tee

Nipple Joint

INSTALLATION

Continued

Installation must include an equipment shutoff

valve, union and plugged 1/8" NPT tap. Locate

NPT tap within reach for test gauge hook up. NPT

tap must be upstream from heater (see Figures 15

or 16, depending on your model).

IMPORTANT: Install equipment shutoff valve

in an accessible location. The equipment shutoff

valve is for turning on or shutting off the gas to

the appliance.

Check your building codes for any special re-

quirements for locating equipment shutoff valve

to replaces.

Apply pipe joint sealant lightly to male NPT

threads. This will prevent excess sealant from

going into pipe. Excess sealant in pipe could result

in clogged heater valves.

WARNING: Use pipe joint

sealant that is resistant to liquid

petroleum (LP) gas.

We recommend that you install a sediment trap in

supply line as shown in Figures 15 or 16, depend-

ing on your model. Locate sediment trap where it is

within reach for cleaning. Install in piping system

between fuel supply and heater. 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.

CAUTION: Avoid damage to

regulator. Hold gas regulator

with wrench when connecting

it to gas piping and/or ttings

(Thermostatically-Controlled

Models Only).

CAUTION: Avoid damage to

gas control. Hold gas control

with wrench when connecting

it to gas piping and/or ttings

(Remote-Ready Models Only).

Figure 15 - Gas Connection

(Thermostatically-Controlled Models Only)

* Purchase the optional CSA design-certied

equipment shutoff valve from your dealer. See

Accessories, page 42.

**Minimum inlet pressure for purpose of input

adjustment.

Figure 16 - Gas Connection (Remote-

Ready Models Only)

Gas

Control

Tee Cap Pipe

Joint Nipple

3" Minimum

Gas

Regulator

PROPANE/LP

From External

Regulator

(11" W.C.**

to 14" W.C.

Pressure)

CSA Design-Certied

Equipment Shutoff Valve

With 1/8" NPT Tap*

Approved Flexible

Gas Hose (if

allowed by local

codes)

Sediment Trap

NATURAL

From Gas

Meter

(5" W.C.**

to 10.5"

W.C.

Pressure)

3" Minimum

Sediment Trap

CSA Design-Certied

Equipment Shutoff Valve

With 1/8" NPT Tap*

Approved Flexible

Gas Hose (if

allowed by local

codes)

PROPANE/LP

From External

Regulator

(11" W.C.**

to 14" W.C.

Pressure)

NATURAL

From Gas

Meter

(5" W.C.**

to 10.5"

W.C.

Pressure)

www.desatech.com 119426-01A16

CHECKING GAS CONNECTIONS

WARNING: Test all gas piping

and connections, internal and

external to unit, for leaks after

installing or servicing. Correct

all leaks at once.

WARNING: Never use an

open ame to check for a leak.

Apply a noncorrosive leak detec-

tion uid to all joints. Bubbles

forming show a leak. Correct all

leaks at once.

CAUTION: Make sure exter-

nal regulator has been installed

between propane/LP supply

and heater. See guidelines un-

der Connecting to Gas Supply,

page 14.

PRESSURE TESTING GAS SUPPLY

PIPING SYSTEM

Test Pressures In Excess Of 1/2 PSIG

(3.5 kPa)

1. Disconnect appliance with its appliance main

gas valve (control valve) and equipment

shutoff valve from gas supply piping system.

Pressures in excess of 1/2 psig will damage

heater regulator.

2. Cap off open end of gas pipe where equipment

shutoff valve was connected.

3. Pressurize supply piping system by either

opening propane/LP supply tank valve for

propane/LP gas or opening main gas valve

located on or near gas meter for natural gas

or using compressed air.

4. Check all joints of gas supply piping system.

Apply noncorrosive leak detection uid to all

joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment shutoff valve

to gas supply. Check reconnected ttings for

leaks.

Test Pressures Equal To or Less Than 1/2

PSIG (3.5 kPa)

Close equipment shutoff valve (see Figure 17).

2. Pressurize supply piping system by either

opening propane/LP supply tank valve for

propane/LP gas or opening main gas valve

located on or near gas meter for natural gas

or using compressed air.

3. Check all joints from gas meter to equipment

shutoff valve for natural gas or propane/LP

supply to equipment shutoff valve for pro-

pane/LP (see Figure 18 or 19, page 17). Apply

noncorrosive leak detection uid to all joints.

Bubbles forming show a leak.

4. Correct all leaks at once.

PRESSURE TESTING HEATER GAS

CONNECTIONS

Open equipment shutoff valve (see Figure 17).

2. Open main gas valve located on or near gas

meter for natural gas or open propane/LP

supply tank valve.

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

position.

4. Check all joints from equipment shutoff valve

to thermostat gas valve (Thermostat-Con-

trolled Models) or to gas control (Remote-

Ready Models) (see Figure 18 or 19, page

17). Apply noncorrosive leak detection uid

to all joints. Bubbles forming show a leak.

5. Correct all leaks at once.

6. Light heater (see Operating Heater, page 20

or 22, depending on your model). Check all

other internal joints for leaks.

Turn off heater (see To Turn Off Gas to Appli-

ance, page 21 for Thermostat-Controlled mod-

els or page 23 for Remote-Ready Models).

Figure 17 - Equipment Shutoff Valve

Open

Closed

Equipment

Shutoff

Valve

INSTALLATION

Continued

www.desatech.com

119426-01A 17

INSTALLATION

Continued

Figure 18 - Checking Gas Joints

(Propane/LP Only)

Thermostat Gas

Valve or Control

Valve Location

Propane/LP

Supply Tank

Equipment

Shutoff Valve

Gas Meter

Figure 19 - Checking Gas Joints (Natural

Gas Only)

Thermostat Gas

Valve or Control

Valve Location

Equipment

Shutoff Valve

INSTALLING OPTIONAL REMOTE

ACCESSORIES

Installing Remote Receiver

Remote control accessories are available sepa-

rately (see Accessories, page 42).

1. If unit is already installed in replace, continue

with these instructions. If unit has not been

installed in replace, go to step 6 and continue

installation of remote accessory.

WARNING: Turn off heater

and let cool before handling any

part of heater. Make sure gas is

turned of to unit.

2. Carefully remove logs and set aside.

3. Locate mounting screws on sides of heater

base assembly and remove screws. Set screws

aside for reinstallation.

4. Disconnect gas line from heater base as shown

in Figure 11 or 12, page 13.

WARNING: A qualied ser-

vice person must connect and

disconnect gas to heater. Follow

all local codes.

5. Remove heater base from replace.

6. Install receiver bracket to base with phillips

screws provided in hardware kit as shown in

Figure 20.

7. Disconnect jumper wire from control valve at

TPTH and TH locations (see Figure 21).

8. Install remote receiver into receiver bracket

using pads and push button clips provided

with receiver (see Figure 22).

Figure 22 - Installing Remote Receiver

Push

Button

Clips Bracket

Battery

Clip

9-Volt Battery

Terminal

Wires

Pad

Figure 21 - Disconnecting Jumper Wire

From Control Valve

Jumper

Wire

Control Valve

Figure 20 - Installing Remote Receiver

Bracket

Remote Receiver Bracket

Phillips

Screws

www.desatech.com 119426-01A18

INSTALLING LOGS

WARNING: Failure to posi-

tion the parts in accordance

with these diagrams or failure

to use only parts specically

approved with this heater may

result in property damage or

personal injury.

Each log is marked with a number. These numbers

will help you identify the log when installing. It

is very important to install these logs exactly as

instructed. Do not modify logs. Only use logs

supplied with heater.

VUL Model Logs Only

1. Place bottom log in center of the base assem-

bly as shown in Figure 25, page 19.

2. Rest rear log in back corner sections of base

assembly as shown in Figure 25, page 19.

Make sure log is completely vertical and not

leaning in toward burner where the ame will

touch the log.

3. Position front right log against right side of

grate prongs (see Figure 25, page 19).

4. Position front left log against left side of grate

prongs (see Figure 25, page 19).

5. Place middle right log over front right and

bottom logs as shown in Figure 26, page 19.

Be sure hole in middle right log seats over pin

in bottom log.

Figure 24 - Installing Battery in Hand-Held

Remote Control Unit

INSTALLATION

Continued

9. Connect wires to control valve at the TPTH

and TH locations as shown in Figure 23.

Note: Make sure excess wire does not inter-

fere with burner or pilot.

10.

If heater was removed from replace before

installation of remote accessory, see Install-

ing Heater Base Assembly on page 12 to rein-

stall heater into replace. Test gas connection

for leaks (see Checking Gas Connections,

page 16).

11. If logs were removed from heater for install

remote accessory, replace logs (see Installing

Logs, column 2).

Figure 23 - Connecting Wires

Control Valve

White Wire

From Receiver

Red Wire From

Receiver

Installing Batteries for Remote Receiver

and Hand Held Remote Control

Two 9-volt alkaline batteries (not included) are

required to operate this heater with the wireless

hand-held remote control set. One battery must be

installed in the receiver and one in the hand-held

remote control unit. Note: Only use alkaline

batteries.

Installing 9-Volt Battery in Receiver

1. Locate back of receiver behind receiver

bracket mounted on base assembly.

2. Locate the battery clip mounted on the back

of the receiver (see Figure 22, page 17).

3. Slide a 9-volt battery through the clip.

4. Attach the terminal wires to the battery.

Installing 9-Volt Battery (Not Included) in Hand-

Held Remote Control Unit

1. Remove battery cover on back of remote

control unit.

2. Attach terminal wires to the battery. Place

battery into the battery housing.

3. Replace battery cover onto remote control unit.

9-Volt Battery

Battery

Housing

Battery

Cover

Terminal

Wires

Remote Control Unit

www.desatech.com

119426-01A 19

INSTALLATION

Continued

Rear Log

Grate

Prongs

Figure 25 - Installing VUL Model Log Sets

Note: Your appliance may vary from model shown

but log placement will be the same.

Bottom

Log

Base Assembly Front Right

Log

Front Left Log

Place middle left log over front left and

bottom logs as show in Figure 26. Be sure

hole in middle left log seats over pin in

front left log.

CRB and HRB Model Logs Only

1. Place bottom log in center of the base assem-

bly as shown in Figure 27.

2. Rest rear log in back corner sections of base as-

sembly as shown in Figure 27. Make sure log is

completely vertical and not leaning in toward

burner where the ame will touch the log.

3. Position front log as shown in Figure 27,

making sure the grooves in the bottom of the

log t over the grate prongs.

Base

Assembly

Figure 27 - Installing CRB and HRB Model

Log Sets

Bottom

Log

Note: Your appliance may vary from model shown

but log placement will be the same.

Front Log

Figure 26 - Installing VUL Model Log Sets

Middle

Right

Log

Middle Left Log

Bottom

Log

Pin on Front

Left Log

www.desatech.com 119426-01A20

OPERATING HEATER

THERMOSTAT-CONTROLLED

MODELS

FOR YOUR SAFETY

READ BEFORE LIGHTING

WARNING: If you do not fol-

low these instructions exactly,

a re 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 oor because some gas is heavier than

air and will settle on the oor.

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 re 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 qualied service tech-

nician or gas supplier. Force or attempted

repair may result in a re or explosion.

D. Do not use this appliance if any part has

been under water. Immediately call a

qualied 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

WARNING:

• If replace has glass doors,

never operate this heater with

glass doors closed. If you op-

erate heater with doors closed,

heat buildup inside replace

will cause glass to burst. Make

sure there are no obstructions

across openings of replace.

•

You must operate this heater

with a replace screen in place.

Make sure replace screen is

closed before running heater.

NOTICE: During initial operation

of new heater, burning logs will

give off a paper-burning smell.

Orange ame will also be pres-

ent. Open damper or window to

vent smell. This will only last a

few hours.

Note: Home owners generally prefer to op-

erate their heater with the chimney damper

closed. This will put all the heat into the room.

However, there may be times you will desire

the full ames of the HI heat setting but will

nd the heat output excessive. You can open

the chimney damper (if you have one) fully or

partially to release some of the heat.

WARNING: Damper handle

will be hot if heater has been

running.

1. STOP! Read the safety information col-

umn 1.

2. Make sure equipment shutoff valve is fully

open.

3. Turn control knob clockwise to the

OFF position.

4. Wait ve (5) minutes to clear out any gas.

Then smell for gas, including near the oor.

If you smell gas, STOP! Follow “B” in the

safety information, column 1. If you don’t

smell gas, go to the next step.

www.desatech.com

119426-01A 21

5. Turn control knob counterclockwise

to the PILOT position. Press in control

knob for ve (5) seconds (see Figure 28).

Note: You may be running this heater for

the rst time after hooking up to gas sup-

ply. If so, the control knob may need to be

pressed in for 30 seconds or more. This will

allow air to bleed from the gas system.

6. With control knob pressed in, press and

release ignitor button. This will light pilot.

The pilot is attached to the front burner. If

needed, keep pressing ignitor button until

pilot lights.

Note: If pilot does not stay lit, contact a

qualied service person or gas supplier for

repairs. Until repairs are made, light pilot

with match. To light pilot with match, see

Manual Lighting Procedure.

7. Keep control knob pressed in for 30 seconds

after lighting pilot. After 30 seconds, release

control knob.

• If control knob does not pop out when

released, contact a qualied service person

or gas supplier for repairs.

Note: If pilot goes out, repeat steps 3

through 7. This heater has a safety interlock

system. Wait one (1) minute for system to

reset before lighting pilot again.

8. Turn control knob counterclockwise

to desired heating level. The burners should

light. Set control knob to any heat level

between HI and LO.

CAUTION: Do not try to ad-

just heating levels by using the

equipment shutoff valve.

OPERATING HEATER

Continued

Figure 28 - Control Knob and Ignitor

Button Location

Figure 29 - Pilot

Control Knob

Ignitor Button

Ignitor Electrode

Thermocouple Pilot

Burner

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

Turn control knob clockwise to the

OFF position.

Shutting Off Burners Only (pilot stays lit)

Turn control knob clockwise to the

PILOT position.

THERMOSTAT CONTROL

OPERATION

The thermostat control knob can be set to any

comfort level between HI and LO. The ther-

mostat will gradually modulate the heat output

and ame height from higher to lower settings

or pilot, in order to maintain the comfort level

you select. The ideal comfort setting will vary

by household depending upon the amount of

space to be heated, the output of the central

heating system, etc.

Note: Selecting the HI setting with the control

knob will cause the burner to remain fully on,

without modulating down in most cases.

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 5 under Lighting

Instructions, page 20 .

2. Depress control knob and light pilot with

match.

3. Keep control knob pressed in for 30 seconds

after lighting pilot. After 30 seconds, release

control knob. Now follow step 8 under

Lighting Instructions, column 1.

www.desatech.com 119426-01A22

LIGHTING

INSTRUCTIONS

WARNING:

• If replace has glass doors,

never operate this heater with

glass doors closed. If you op-

erate heater with doors closed,

heat buildup inside replace

will cause glass to burst. Make

sure there are no obstructions

across openings of replace.

•

You must operate this heater

with a replace screen in place.

Make sure replace screen is

closed before running heater.

NOTICE: During initial operation

of new heater, burning logs will

give off a paper-burning smell.

Orange ame will also be pres-

ent. Open damper or window to

vent smell. This will only last a

few hours.

Note: Home owners generally prefer to op-

erate their heater with the chimney damper

closed. This will put all the heat into the room.

However, there may be times you will desire

the full ames of the HI heat setting but will

nd the heat output excessive. You can open

the chimney damper (if you have one) fully or

partially to release some of the heat.

WARNING: Damper handle

will be hot if heater has been

running.

STOP! Read the safety information column 1.

Make sure equipment shutoff valve is fully

open.

3. Set selector switch in the OFF position.

4. Press in and turn control knob clockwise

to the OFF position (see Figure 30,

page 23).

WARNING: Burners will come

on automatically within one minute

when the selector switch is in the

ON position after the pilot is lit.

REMOTE-READy MODELS

FOR YOUR SAFETY READ

BEFORE LIGHTING

WARNING: If you do not fol-

low these instructions exactly,

a re 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 oor because some gas is heavier than

air and will settle on the oor.

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 re 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 qualied service tech-

nician or gas supplier. Force or attempted

repair may result in a re or explosion.

D. Do not use this appliance if any part has

been under water. Immediately call a

qualied service technician to inspect the

appliance and to replace any part of the

control system and any gas control which

has been under water.

OPERATING HEATER

Continued

www.desatech.com

119426-01A 23

5. Wait ve (5) minutes to clear out any gas.

Then smell for gas, including near the oor.

If you smell gas, STOP! Follow “B” in the

safety information, column 1, page 22. If

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

6. Press in and turn control knob counter-

clockwise to the PILOT position.

Press in control knob for ve (5) seconds

(see Figure 30).

Note: You may be running this heater for

the rst time after hooking up to gas sup-

ply. If so, the control knob may need to be

pressed in for 30 seconds or less. This will

allow air to bleed from the gas system.

7. With control knob pressed in, press and

release ignitor button. This will light pilot.

The pilot is attached to the front burner. If

needed, keep pressing ignitor button until

pilot lights.

Note: If pilot does not stay lit, contact a

qualied 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 24.

8. Keep control knob pressed in for 30 seconds

after lighting pilot. After 30 seconds, release

control knob.

• If control knob does not pop out when

released, contact a qualied service person

or gas supplier for repairs.

Note: If pilot goes out, repeat steps 4

through 8, page 22 and above.

9. Slightly push in and turn control knob coun-

terclockwise to the ON position.

10.

Wait one minute and switch selector switch to

the ON position to light burners. Note: AUTO

is only functional when using GWMT1 or

GWMS2 optional accessories.

11. Set ame adjustment knob to any level

between HI and LO.

OPERATING HEATER

Continued CAUTION: Do not try to ad-

just heating levels by using the

equipment shutoff valve.

WARNING: Make sure the se-

lector switch is in the OFF position

when you are away from home for

long periods of time. Heater will

come on automatically with selec-

tor switch in the ON position.

OFF

REMOTE

Figure 30 - Control Knob and Ignitor

Button Location

Control Knob

Ignitor

Button Selector Switch

in OFF Position

Flame

Adjustment

Knob

TO TURN OFF GAS

TO APPLIANCE

Shutting Off Heater

1. Turn control knob clockwise to the

OFF position.

2a. Set selector switch in the OFF position.

2b. If Using Optional Hand-Held Remote:

Set selector switch in the OFF position to

prevent draining battery.

Shutting Off Burners Only (pilot stays lit)

You may shut off the burners and keep the pilot

lit by doing one of the following:

1. Turn control knob clockwise to the

PILOT position.

2. Use remote control manual OFF button.

3. Set selector switch in the OFF position.

Figure 31 - Pilot (Propane/LP)

Ignitor

Electrode

Pilot

Burner

Figure 32 - Pilot (Natural)

Ignitor

Electrode

Pilot Burner

www.desatech.com 119426-01A24

OPERATING HEATER

Continued

MANUAL LIGHTING

PROCEDURE

1. Follow steps 1 through 6 under Lighting

Instructions, pages 22 and 23.

2. Depress control knob and light pilot with

match.

3. Keep control knob pressed in for 30 seconds

after lighting pilot. After 30 seconds, release

control knob. Now follow steps 9 through

11, Lighting Instructions, page 23.

OPTIONAL HAND-HELD

REMOTE OPERATION

Note: All remote control accessories must be

purchased separately (see Accessories, page

42). Follow instructions included with the

remote control.

NOTICE: You must light the pilot

before using the hand-held re-

mote control unit. See Lighting

Instructions on page 22.

After lighting, let pilot ame burn for about

one minute. Turn control knob to ON posi-

tion. Adjust ame adjustment knob anywhere

between HI and LO. Slide the selector switch to

the REMOTE position (see Figure 33). Note:

The burner may light if hand-held remote was

on when selector switch was last turned off.

You can now turn the burner on and off with

the hand-held remote control unit.

IMPORTANT: Do not leave the selector switch

in the REMOTE or ON position when the pilot

is not lit. This will drain the battery.

ON/OFF SERIES (MODEL HRC100)

Hold the control button on the hand-held remote

until burner turns on. Hold the control button

again until burner turns off (see Figure 34).

TO LOCK press both buttons on hand-held

remote control until light stops ashing. Hand-

held remote control is now locked. If the re is

on it will be turned off automatically. In the

locked state, the light will not light up when

any button is pressed.

TO UNLOCK press both buttons together

on hand-held remote control until the light

stops ashing. The hand-held remote is now

unlocked.

Figure 34 - On/Off Hand-Held Remote

Control Unit

Figure 35 - Thermostat Hand-Held

Remote Control Unit

Figure 33 - Setting the Selector switch,

Control Knob and Flame Adjustment

Knob for Remote Operation

OFF

REMOTE

Selector Toggle Switch (Optional

Hand-Held Remote Control)

Control Knob in

On Position

Flame Adjustment

Knob

Control

Button

Indicator

Light

LOCK

MANU AUTO

ºC/ºF

TEMP POWER

ROOM

TEMP

SET

TEMP

AUTO

Turns

Hand-Held

Remote On

or Off and

Allows You

to Choose

the Manual

Setting

Selects

AUTO

Mode

°C/°F Mode

Button

Locks

System to

Prevent

Accidental

Ignition

Turns

Burners

On or

Off

Increases

or Decreases Room

Temperature in

AUTO Mode

Digital Display Shows

Temperature and Settings

THERMOSTAT SERIES (MODEL

HRC200)

The hand-held remote can be operated using

either the manual mode (MANU) or thermo-

static mode (AUTO) (see Figure 35). To select

Fahrenheit/Centigrade mode display, carefully

press the ˚C/˚F mode button with the end of a

paper clip or similar blunt object.

www.desatech.com

119426-01A 25

Manual Mode

Press the POWER and LOCK buttons together

to turn on the hand-held remote control.

2. Press the MANU button to turn on the

replace.

3. Press the POWER and LOCK buttons

together to turn off the replace.

Auto (Thermostatic) Mode

Press the POWER and LOCK buttons together

to turn on the hand-held remote control.

2. Press AUTO button to select this mode.

3. Set the desired room temperature by press-

ing the TEMP + or - buttons.

4. Press the POWER and LOCK buttons

together to turn off the replace

Note: Do not leave the hand-held remote in the

AUTO mode close to the replace. The radiant

heat from the replace will turn off the replace.

Ideally, place the hand-held remote in the center

of the room facing towards the replace.

Note: Do not hold the hand-held remote for

a long time. Body temperature will affect its

operation in the AUTO mode.

Safety Features

When away from home for an extended period

of time or as a child safety feature to prevent

accidental ignition of the replace, the receiver

ON/OFF/REMOTE switch should be in the

OFF position.

Auto Shutoff Feature

1. If the average room temperature exceeds

82 degrees Fahrenheit (28 degrees Centi-

grade), the hand-held remote control will

perform a safety override and shut the

replace off. This feature is not available

in the MANU mode.

2. The receiver continuously receives signals

from the hand-held remote to control the

room temperature. If the hand-held remote

is misplaced, obstructed or for any reason

cannot transmit to the receiver, the receiver

will shut off the replace after 8 minutes.

Key Pad Lock Feature

This feature allows the user to lock/unlock

the keypad on the hand-held remote in the

MANU or AUTO mode to prevent inadvertent

operation (i.e. children operating the hand-held

remote control, etc.). The keypad is locked in

either on or off. Press the POWER and LOCK

buttons together to turn the unit on or off.

OPERATING HEATER

Continued

INSPECTING bURNERS

Check pilot ame pattern and burner ame pat-

terns often.

PILOT FLAME PATTERN

Figure 36 shows a correct pilot ame pattern.

Figure 37 shows an incorrect pilot ame pattern.

The incorrect pilot flame is not touching the

thermocouple. This will cause the thermocouple

to cool. When the thermocouple cools, the heater

will shut down.

If pilot ame pattern is incorrect, as shown in

Figure 37

• turn heater off (see To Turn Off Gas to Appli-

ance, page 21 [Thermostatically-Controlled

Models] or page 23 [Remote-Ready Models])

• see Troubleshooting, page 28

Note: The pilot ame on natural gas units will

have a slight curve, but ame should be blue and

have no yellow or orange color.

Figure 36 - Correct Pilot Flame Pattern

(Your pilot may vary from pilots shown)

Pilot Burner

Thermocouple

Figure 37 - Incorrect Pilot Flame Pattern

(Your pilot may vary from pilots shown)

Thermocouple

Pilot Burner

www.desatech.com 119426-01A26

FRONT BURNER FLAME PATTERN

Figure 38 shows correct front burner ame pat-

tern. Figure 39 shows incorrect front burner ame

pattern. The incorrect burner ame pattern shows

yellow tipping at top of blue ame.

WARNING: If yellow tipping

occurs, your heater could pro-

duce increased levels of carbon

monoxide. If front burner ame

pattern shows yellow tipping,

follow instructions at bottom of

this page. Yellow ame on rear

burner is normal.

NOTICE: Do not mistake orange

ames with yellow tipping. Dirt

or other ne particles are burned

by heater, causing brief patches

of orange ame.

If front burner ame pattern is incorrect, as shown

in Figure 39

• turn heater off (see To Turn Off Gas to Appli-

ance, page 21 [Thermostat-Controlled Models]

or page 23 [Remote-Ready Models])

• see Troubleshooting, page 28

INSPECTING bURNERS

Continued

Figure 38 - Correct Front Burner Flame

Pattern

Figure 39 - Incorrect Front Burner Flame

Pattern

Yellow Tipping At

Top of Blue Flame

CLEANING AND

MAINTENANCE

WARNING: Turn off heater

and let cool before cleaning.

CAUTION: You must keep

control areas, burners and

circulating air passageways

of heater clean. Inspect these

areas of heater before each use.

Have heater inspected yearly

by a qualied service person.

Heater may need more frequent

cleaning due to excessive lint

from carpeting, pet hair, bedding

material, etc.

WARNING: Failure to keep

the primary air opening(s) of

the burner(s) clean may result in

sooting and property damage.

BURNER INjECTOR HOLDER AND

PILOT AIR INLET HOLE

The primary air inlet holes allow the proper amount

of air to mix with the gas. This provides a clean

burning ame. Keep these holes clear of dust, dirt,

lint and pet hair. Clean these air inlet holes prior to

each heating season. Blocked air holes will create

soot. We recommend that you clean the unit every

three months during operation and have heater

inspected yearly by a qualied service person.

We also recommend that you keep the burner

tube and pilot assembly clean and free of dust and

dirt. To clean these parts we recommend using

compressed air no greater than 30 PSI. Your local

computer store, hardware store or home center

may carry compressed air in a can. You can use a

vacuum cleaner in the blow position. If using com-

pressed air in a can, please follow the directions on

the can. If you don’t follow directions on the can,

you could damage the pilot assembly.

1. Shut off the unit, including the pilot. Allow

the unit to cool for at least thirty minutes.

2. Inspect burner, pilot and primary air inlet holes

on injector holder for dust and dirt (see Figure

40, page 27).

3. Blow air through the ports/slots and holes in

the burner.

www.desatech.com

119426-01A 27

4. Check the injector holder located at the end

of the burner tube again. Remove any large

particles of dust, dirt, lint or pet hair with a

soft cloth or vacuum cleaner nozzle.

5. Blow air into the primary air holes on the

injector holder.

6. In case any large clumps of dust have now been

pushed into the burner repeat steps 3 and 4.

Clean the pilot assembly also. A yellow tip on the

pilot ame indicates dust and dirt in the pilot as-

sembly. There is a small pilot air inlet hole about

2" from where the pilot ame comes out of the

pilot assembly (see Figure 41). With the unit off,

lightly blow air through the air inlet hole. You may

blow through a drinking straw if compressed air

is not available.

CLEANING AND

MAINTENANCE

Continued

LOGS

• If you remove logs for cleaning, refer to Install-

ing Logs, page 18, to properly replace logs.

• Replace log(s) if broken or chipped (dime-sized

or larger).

MAIN BURNER

Periodically inspect all burner ame holes with

the heater running. All slotted burner ame holes

should be open with yellow ame present. All

round burner ame holes should be open with a

small blue ame present. Some burner ame holes

may become blocked by debris or rust, with no

ame present. If so, turn off heater and let cool.

Remove blockage, blocked burner ame holes

will create soot.

Figure 40 - Injector Holder On Outlet

Burner Tube

Burner

Tube

Injector Holder

Primary Air

Inlet Holes

Ports/Slots

Figure 41 - Pilot Inlet Air Hole (Your pilot

may vary from pilot shown)

Pilot Air

Inlet Hole

Pilot Assembly

WIRING DIAGRAM

(Remote-Ready Models Only)

Thermopile

www.desatech.com 119426-01A28

TROUbLESHOOTING

WARNING: Turn off heater and let cool before servicing. Only a

qualied service person should service and repair heater.

CAUTION: Never use a wire, needle or similar object to clean

ODS/pilot. This can damage ODS/pilot unit.

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

POSSIBLE CAUSE

1. Ignitor electrode not con-

nected to ignitor cable

2. Ignitor cable pinched or wet

3. Broken ignitor cable

4. Bad ignitor

5. Ignitor electrode positioned

wrong

6. Ignitor electrode broken

7. Battery not installed, battery

power low or battery not

installed correctly (electronic

ignition models only)

1. Gas supply turned off or equip-

ment shutoff valve closed

2. Control knob not in PILOT

position

3. Control knob not pressed in

while in PILOT position

Air in gas lines when installed

5. Depleted gas supply (pro-

pane/LP only)

6. ODS/pilot is clogged

7. Gas regulator setting is not

correct

REMEDY

1. Reconnect ignitor cable

2. Free ignitor cable if pinched

by any metal or tubing. Keep

ignitor cable dry

3. Replace ignitor cable

4. Replace ignitor

5. Replace pilot assembly

6. Replace pilot assembly

7. Install new alkaline battery

in electronic ignitor. Verify

battery is installed correctly

1. Turn on gas supply or open

equipment shutoff valve

2. Turn control knob to PILOT

position

3. Press in control knob while in

PILOT position

4. Continue holding down con-

trol knob. Repeat igniting op-

eration until air is removed

5. Contact local propane/LP gas

company

6. Clean ODS/pilot (see Cleaning

and Maintenance, page 26) or

replace ODS/pilot assembly

7. Replace gas regulator

OBSERVED PROBLEM

When ignitor button is pressed,

there is no spark at ODS/pilot

When ignitor button is pressed,

there is spark at ODS/pilot but

no ignition

www.desatech.com

119426-01A 29

POSSIBLE CAUSE

1. Control knob not fully pressed

2. Control knob not pressed in

long enough

3. Safety interlock system has

been triggered

4. Equipment shutoff valve not

fully open

5. Pilot ame not touching ther-

mocouple, which allows ther-

mocouple to cool, causing

pilot flame to go out. This

problem could be caused by

one or both of the following:

A) Low gas pressure

B) Dirty or partially clogged

ODS/pilot

6. Thermocouple connection

loose at control valve

7. Thermocouple damaged

8. Control valve damaged

1. Inlet gas pressure is too low

2. Burner orice(s) clogged

3. Mislocated crossover tube

Remote selector in OFF position

(Remote-Ready models only)

Wire disconnected from gas control

(Remote-Ready models only)

1. Manifold pressure is too low

2. Burner orice(s) clogged

3. Mislocated crossover tube

1. Burner orice is clogged or

damaged

2. Damaged burner

3. Gas regulator defective

1. Not enough air

2. Gas regulator defective

REMEDY

1. Press in control knob fully

2. After ODS/pilot lights, keep con-

trol knob pressed in 30 seconds

3. Wait one minute for safety in-

terlock system to reset. Repeat

ignition operation

4. Fully open equipment shutoff

valve

5. A) Contact local natural or

propane/LP gas company

B) Clean ODS/pilot (see

Cleaning and Maintenance,

page 26) or replace ODS/pilot

assembly

6. Hand tighten until snug, then

tighten 1/4 turn more

7. Replace pilot assembly

8. Replace control valve

1. Contact local natural or pro-

pane/LP gas company

2. Clean burner(s) (see Cleaning

and Maintenance, page 26) or

replace burner orice(s)

Contact qualied service person

4. Put remote selector in ON

position

See Wiring Diagram, page 27

1. Contact local natural or pro-

pane/LP gas company

2. Clean burner(s) (see Cleaning

and Maintenance, page 26) or

replace burner orice(s)

Contact qualied service person

1. Clean burner (see Cleaning

and Maintenance, page 26)

or replace burner orice

2. Replace damaged burner

3. Replace gas regulator

1. Check burner(s) for dirt

and debris. If found, clean

burner(s) (see Cleaning and

Maintenance, page 26)

2. Replace gas regulator

OBSERVED PROBLEM

ODS/pilot lights but flame

goes out when control knob is

released

One or both burners do not light

after ODS/pilot is lit

Delayed ignition of one or both

burners

Burner backring during com-

bustion

Yellow ame in front burner

during burner combustion

TROUbLESHOOTING

Continued

www.desatech.com 119426-01A30

POSSIBLE CAUSE

1. Residues from manufacturing

processes and logs curing

1. Turning control knob to HI

position when burners are

cold

2. Air in gas line

3. Air passageways on heater

blocked

4. Dirty or partially clogged

burner orice(s)

1. When heated, vapors from

furniture polish, wax, carpet

cleaners, etc. may turn into

white powder residue

1. Not enough combustion/ven-

tilation air

1. Battery is not installed. Bat-

tery power is low

1. Metal expanding while heating

or contracting while cooling

REMEDY

1. Problem will stop after a few

hours of operation

1. Turn control knob to LO

position and let warm up for

a minute

2. Operate burners until air is

removed from line. Have gas

line checked by local natural

or propane/LP gas company

3. Observe minimum installa-

tion clearances (see pages 9

through 11)

4. Clean burners (see Cleaning

and Maintenance, page 26)

or replace burner orice(s)

1. Turn heater off when using

furniture polish, wax, carpet

cleaners or similar products

1. Refer to Air for Combustion

and Ventilation requirements

(page 6)

1. Replace 9-volt batteries in re-

ceiver and hand-held remote

1. This is normal with most heat-

ers. If noise is excessive, contact

qualied service person

OBSERVED PROBLEM

Slight smoke or odor during

initial operation

Heater produces a whistling

noise when burners are lit

White powder residue forming

within burner box or on adjacent

walls or furniture

Moisture/condensation noticed

on windows

Remote does not function (Re-

mote-Ready Models Only)

Heater produces a clicking/tick-

ing noise just after burners are

lit or shut off

TROUbLESHOOTING

Continued

www.desatech.com

119426-01A 31

TROUbLESHOOTING

Continued

WARNING: 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. Fol-

low the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the re department.

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint,

paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These

fumes may mix with combustion air and create odors. These odors will disappear over time.

POSSIBLE CAUSE

Heater burning vapors from paint,

hair spray, glues, cleaners, chemi-

cals, new carpet, etc. (See IM-

PORTANT statement above)

2. Low fuel supply (propane/LP

only)

3. Gas leak. See Warning

statement at top of page

1. Not enough fresh air is avail-

able

2. Low line pressure

ODS/pilot is partially clogged

1. Gas leak. See Warning

statement at top of page

2. Control valve or gas control

defective

1. Foreign matter between con-

trol valve and burner

2. Gas leak. See Warning

statement at top of page

1. Thermostat sensing bulb needs

to be repositioned (Thermo-

stat-Controlled Models Only)

2. Hand-held remote control is

too close to heater (Remote-

Ready Models Only)

REMEDY

1. Open window to ventilate

room. Stop using odor caus-

ing products while heater is

running

2. Rell supply tank (propane/LP

only)

3. Locate and correct all leaks

(see Checking Gas Connec-

tions, page 16)

1. Open window and/or door for

ventilation

2. Contact local natural or pro-

pane/LP gas company

3. Clean ODS/pilot (see Cleaning

and Maintenance, page 26)

1. Locate and correct all leaks

(see Checking Gas Connec-

tions, page 16)

2. Replace control valve or gas

control

1. Take apart gas tubing and

remove foreign matter

2. Locate and correct all leaks

(see Checking Gas Connec-

tions, page 16)

1. Reposition thermostat sensing

bulb (see Optional Positioning

of Thermostat Sensing Bulb,

page 32)

2. Move hand-held remote con-

trol unit farther away from the

heater

OBSERVED PROBLEM

Heater produces unwanted

odors

Heater shuts off in use (ODS

operates)

Gas odor even when control

knob is in OFF position

Gas odor during combustion

Log set cycles to pilot, but room

temperature drops to a lower

than ideal level before log set

comes back on

www.desatech.com 119426-01A32

OPTIONAL POSITIONING

OF THERMOSTAT

SENSING bULb

(Thermostat-Controlled Models Only)

FOR MASONRY AND FACTORY-

BUILT METAL FIREPLACE

If your log set cycles to pilot, but the room tem-

perature drops to a lower than ideal comfort level

before the log set comes back on, you may want

to reposition the thermostat sensing bulb.

The thermostat sensing bulb is located on the gas

valve assembly. This location allows the ther-

mostat to keep the room temperature at an ideal

comfort level for most replace applications. For

positioning the thermostat sensing bulb elsewhere,

an adhesive-backed mounting clip is available

(see Figure 42).

Tools needed: 5/16" hex driver or socket

1. Locate the gas valve assembly and thermostat

sensing bulb (see Figure 43).

2. With 5/16” hex driver or socket, loosen the

thermostat screw. Carefully slide the thermo-

stat sensing bulb out of the retaining clamp

(see Figure 44).

Note: Do not remove the screw. Make sure

you tighten the screw after removing the

thermostat sensing bulb.

IMPORTANT: Do not force or bend the

thermostat sensing bulb or capillary.

Capillary

Screw Retaining Clamp

Thermostat

Sensing Bulb

Figure 43 - Location of Gas Valve

Assembly and Thermostat Sensing Bulb

Thermostat

Sensing Bulb

Gas Valve

Assembly

Figure 42 - Adhesive-backed Mounting

Clip

Figure 44 - Removing Thermostat

Sensing Bulb

Figure 45 - Locating Thermostat Sensing

Bulb on Masonry Fireplace

Figure 46 - Locating Thermostat Sensing

Bulb on Factory-built Metal Fireplace

Adhesive-backed

Mounting Clip

Thermostat

Sensing Bulb

Figure 47 - Installing Thermostat Sensing

Bulb Behind Glass Doors

Adhesive-

backed

Mounting Clip

Glass Doors

Thermostat

Sensing Bulb

Adhesive-backed

Mounting Clip

Thermostat

Sensing Bulb

(Unit Will

Differ From

Illustration)

(Unit Will

Differ From

Illustration)

The thermostat sensing bulb may be located

to the lower right front side of replace. De-

termine location of sensing bulb, but do not

mount sensing bulb until step 4. If you have a

masonry replace, see Figure 45 for location.

If you have a factory-built metal replace, see

Figure 46 for location.

If your replace has glass doors, position

sensing bulb directly behind door gap on right

bottom side (see Figure 47).

www.desatech.com

119426-01A 33

Figure 48 - Positioning the Thermostat

Sensing Bulb in the Vertical Position

with the Capillary at the Bottom

Capillary

Thermostat

Sensing Bulb

Do Not

Crimp

Capillary

Adhesive-

backed

Mounting

Clip

4. The mounting clip must be a minimum of 3"

from bottom of replace to prevent crimping

of capillary. Once you have decided on a

location, clean the area thoroughly. Remove

the paper backing from the adhesive on back

of mounting clip. Press the clip into the new

location so that the thermostat sensing bulb

will be positioned vertically with the capil-

lary at the bottom (see Figure 48). Slide the

thermostat sensing bulb into the clip.

IMPORTANT: Do not crimp capillary.

OPTIONAL POSITIONING OF THERMOSTAT SENSING bULb

Continued

SPECIFICATIONS

THERMOSTAT MODELS

VUL18PT

• Rating (Variable): 19,000/30,000 Btu/Hr

• Type Gas: Propane/LP

• Ignition: Electronic

• Manifold Pressure: 7.9" W.C.

• Inlet Gas Pressure (in. of water):

Max - 14" W.C., Min* - 11" W.C.

VUL18NT

• Rating (Variable): 19,000/28,000 Btu/Hr

• Type Gas: Natural

• Ignition: Electronic

• Manifold Pressure: 3.4" W.C.

• Inlet Gas Pressure (in. of water):

Max - 10.5" W.C., Min* - 5" W.C.

VUL24PT/VUL30PT/HRB3624PT

• Rating (Variable): 25,000/36,000 Btu/Hr

• Type Gas: Propane/LP

• Ignition: Electronic

• Manifold Pressure: 7.9" W.C.

• Inlet Gas Pressure (in. of water):

Max - 14" W.C., Min* - 11" W.C.

VUL24NT/VUL30NT/HRB3624NT

• Rating (Variable): 25,000/36,000 Btu/Hr

• Type Gas: Natural

• Ignition: Electronic

• Manifold Pressure: 3.4" W.C.

• Inlet Gas Pressure (in. of water):

Max - 10.5" W.C., Min* - 5" W.C.

*For purpose of input adjustment

REMOTE-READY MODELS

VUL18PR/CRB2618NR

• Rating (Variable): 19,000/30,000 Btu/Hr

• Type Gas: Propane/LP

• Ignition: Electronic

• Manifold Pressure: 7.9" W.C.

• Inlet Gas Pressure (in. of water):

Max - 14" W.C., Min* - 11" W.C.

VUL18NR/CRB2618NR

• Rating (Variable): 19,000/28,000 Btu/Hr

• Type Gas: Natural

• Ignition: Electronic

• Manifold Pressure: 3.4" W.C.

• Inlet Gas Pressure (in. of water):

Max - 10.5" W.C., Min* - 5" W.C.

VUL24PR/VUL30PR/CRB3624PR/

CRB3630PR/HRB3924PR/

HRB3930PR

• Rating (Variable): 25,000/36,000 Btu/Hr

• Type Gas: Propane/LP

• Ignition: Electronic

• Manifold Pressure: 7.9" W.C.

• Inlet Gas Pressure (in. of water):

Max - 14" W.C., Min* - 11" W.C.

VUL24NR/VUL30NR/CRB3624NR/

CRB3630NR/HRB3924NR/

HRB3930NR

• Rating (Variable): 25,000/36,000 Btu/Hr

• Type Gas: Natural

• Ignition: Electronic

• Manifold Pressure: 3.4" W.C.

• Inlet Gas Pressure (in. of water):

Max - 10.5" W.C., Min* - 5" W.C.

*For purpose of input adjustment

www.desatech.com 119426-01A34

KEY

NO.

PART NUMBER

DESCRIPTION QTY

VUL18NT

VUL18PT

VUL18NR

VUL18PR

VUL24NT

VUL24PT

VUL24NR

VUL24PR

VUL30NT

VUL30PT

VUL30NR

VUL30PR

1 113621-01 113621-07 113621-13 Front Right Log (#1) 1

2 113621-02 113621-08 113621-14 Front Left Log (#1) 1

3 113621-03 113621-09 113621-15 Middle Right Log (#2) 1

4 113621-04 113621-10 113621-16 Middle Left Log (#2) 1

5 113621-05 113621-11 113621-11 Bottom Log (#3 - Remote) 1

113621-05 113621-19 113621-19 Bottom Log (#3 - T-stat)

6 113621-06 113621-12 113621-18 Rear Log (#3) 1

ILLUSTRATED PARTS bREAkDOWN AND PARTS LIST

LOG MODELS

VUL18NT, VUL18PT, VUL24NT, VUL24PT, VUL30NT, VUL30PT, VUL18NR,

VUL18PR, VUL24NR, VUL24PR, VUL30NR AND VUL30PR

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions

listed under Replacement Parts on page 42 of this manual.

www.desatech.com

119426-01A 35

ILLUSTRATED PARTS bREAkDOWN AND PARTS LIST

LOG MODELS

CRB2618NR, CRB2618PR, CRB3624NR, CRB3624PR, CRB3630NR,

CRB3630PR, HRB3624NT, HRB3624PT, HRB3624NR AND HRB3624PR

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions

listed under Replacement Parts on page 42 of this manual.

1 3

KEY

NO.

PART NUMBER

DESCRIPTION QTY

CRB2618NR

CRB2618PR

HRB3624NT

HRB3624PT

HRB3924NR

HRB3924PR

CRB3624NR

CRB3624PR

CRB3630NR

CRB3630PR

1 113620-01 113620-04 113620-07 Top Log (#1) 1

2 113620-02 113620-05 113620-05 Bottom Log (#2) 1

3 113620-03 113620-06 113620-09 Back Log (#3) 1

www.desatech.com 119426-01A36

ILLUSTRATED PARTS bREAkDOWN

THERMOSTAT-CONTROLLED MODELS

VUL18NT, VUL18PT, VUL24NT, VUL24PT, VUL30NT, VUL30PT, HRB3624NT

AND HRB3624PT

LPG

www.desatech.com

119426-01A 37

PARTS LIST

THERMOSTAT-CONTROLLED MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions

listed under Replacement Parts on page 42 of this manual.

KEY

NO. PART NO. DESCRIPTION QTY.

1 ** Ramp Burner Base • • • • • • 1

2 111435-01 Electronic Ignitor • • • • • • 1

3 112465-01 Ramp Front Burner • • 1

112465-02 Ramp Front Burner • • • • 1

4 113242-01 Ramp Back Burner Kit • • 1

113242-02 Ramp Back Burner Kit • • • • 1

5 107485-01 O.D.S. Pilot, Natural Gas • • • 1

107486-01 O.D.S. Pilot, Propane/LP Gas • • • 1

6 112713-01 Pilot Bracket, Natural Gas • • • 1

112713-02 Pilot Bracket, Propane/LP Gas • • • 1

7 098249-01 Nut, ODS • • • • • • 2

8 M11084-26 Screw • • • • • • 10

9 112782-01 Air Deactor Bracket • • 1

112782-02 Air Deactor Bracket •••• 1

10 M11084-38 Screw • • • • • • 2

11 101004-11 Rear Burner Injector, Natural • 1

101004-10 Rear Burner Injector, Propane/LP • 1

101004-04 Rear Burner Injector, Natural • • 1

101004-02 Rear Burner Injector, Propane/LP • 1

101004-15 • 1

12 101004-11 Front Burner Injector, Natural • 1

101004-10 Front Burner Injector, Propane/LP • 1

101004-22 Front Burner Injector, Natural • • 1

101004-06 Front Burner Injector, Propane/LP • • 1

13 112708-02 Thermostat Burner Tube • • • • • • 1

14 099211-01 Screw • • • • • • 2

15 098544-01 Thermobulb Clip • • • • • • 1

16 099387-09 Pilot Tube • • 1

099387-14 Pilot Tube • • • • 1

17 101053-01 Adapter • • • • • • 1

18 101329-21 Thermostat Gas Valve (NG) • 1

101329-30 Thermostat Gas Valve (LP) • 1

101329-31 Thermostat Gas Valve (NG) • • 1

101329-26 Thermostat Gas Valve (LP) • • 1

19 100000-01 Cotter Pin • • • • • • 1

20 102013-01 Control Rod • • • • • • 1

21 098354-01 Control Knob • • • • • • 1

22 112714-01 Thermostat Valve Bracket • • • • • • 1

23 098271-12 Ignitor Cable • • • • • • 1

24 098867-09 Gas Regulator, Natural Gas • • • 1

098867-10 Gas Regulator, Propane/LP • • •

25 112712-01 Inlet Tube • • • • • • 1

PARTS AVAILABLE NOT SHOWN

100563-01 Warning Plate • • • • • • 1

101054-01 Lighting Instruction Plate • • • • • • 1

101137-02 Hardware Kit • • • • • • 1

GA6060 Lava Rock • • • • • • 1

102030-01 Auxiliary Thermostat Mtg. Clip • • • • • • 1

** Not a eld replaceable part.

VUL18NT

VUL18PT

VUL24/30NT

VUL24/30PT

HRB3624NT

HRB3624PT

www.desatech.com 119426-01A38

ILLUSTRATED PARTS bREAkDOWN

REMOTE-READY VARIABLE CONTROL MODELS

VUL18NR, VUL18PR, VUL24NR, VUL24PR, VUL30NR, VUL30PR

LPG

23 24

www.desatech.com

119426-01A 39

PARTS LIST

REMOTE-READY VARIABLE CONTROL MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions

listed under Replacement Parts on page 42 of this manual.

KEY

NO. PART NO. DESCRIPTION QTY.

1 ** Ramp Burner Base • • • • 1

2 111435-01 Electronic Ignitor • • • • 1

3 112465-01 Ramp Front Burner • • 1

112465-02 Ramp Front Burner • • 1

4 113242-01 Ramp Back Burner Kit • • 1

113242-02 Ramp Back Burner Kit • • 1

5 103779-01 O.D.S. Pilot, Natural Gas • • 1

103778-01 O.D.S. Pilot, Propane/LP Gas • • 1

6 112713-01 Pilot Bracket, Natural Gas • • 1

112713-03 Pilot Bracket, Propane/LP Gas • • 1

7 098249-01 Nut, ODS • • • • 2

8 M11084-26 Screw • • • • 8

9 112782-03 Air Deactor Bracket • • 1

112782-02 Air Deactor Bracket • • 1

10 101480-12 Jumper Wire • • • • 1

11 101004-11 Rear Burner Injector, Natural • 1

101004-10 Rear Burner Injector, Propane/LP • 1

101004-04 Rear Burner Injector, Natural • 1

101004-02 Rear Burner Injector, Propane/LP • 1

12 101004-11 Front Burner Injector, Natural • 1

101004-10 Front Burner Injector, Propane/LP • 1

101004-08 Front Burner Injector, Natural • 1

101004-06 Front Burner Injector, Propane/LP • 1

13 112708-01 Remote Burner Tube • • • • 1

14 M12461-26 Screw • • • • 5

15 099918-02 Pilot Regulator, Natural Gas • • 1

16 099387-12 Pilot Tube, Natural Gas • • 1

099387-09 Pilot Tube, Propane/LP • • 1

17 098264-02 Male Fitting • • • • 1

18 101329-21 Gas Control Valve (NG) • • 1

101329-30 Gas Control Valve (LP) • • 1

19 103784-01 Control Knob Extension • • • • 1

20 103784-02 Flame Adjustment Knob Extension • • • • 1

21 111173-01 Remote Valve Bracket • • • • 1

22 112715-01 Remote Knob Heat Shield • • • • 1

23 098271-12 Ignitor Cable • • • • 1

24 100609-01 Pilot Tube, Natural Gas • 1

099387-14 Pilot Tube, Natural Gas • 1

PARTS AVAILABLE NOT SHOWN

112717-01 Remote Sensor Bracket • • • • 1

100563-01 Warning Plate • • • • 1

103877-01 Lighting Instruction Plate • • • • 1

100639-02 Caution Decal • • • • 1

101137-02 Hardware Kit • • • • 1

GA6060 Lava Rock • • • • 1

** Not a eld replaceable part.

VUL18NR

VUL18PR

VUL24/30NR

VUL24P/30PR

www.desatech.com 119426-01A40

ILLUSTRATED PARTS bREAkDOWN

REMOTE-READY VARIABLE CONTROL MODELS

CRB2618NR, CRB2618PR, CRB3624NR, CRB3624PR, CRB3630NR,

CRB3630PR, HRB3624NR AND HRB3624PR

LPG

23 24

www.desatech.com

119426-01A 41

PARTS LIST

REMOTE-READY VARIABLE CONTROL MODELS

This list contains replaceable parts used in your heater. When ordering parts, follow the instructions

listed under Replacement Parts on page 42 of this manual.

KEY

NO. PART NO. DESCRIPTION QTY.

1 ** Ramp Burner Assembly • • • • 1

2 111435-01 Electronic Ignitor • • • • 1

3 112465-01 Ramp Front Burner • • 1

112465-02 Ramp Front Burner • • 1

4 113242-01 Ramp Back Burner Kit • • 1

113242-02 Ramp Back Burner Kit • • 1

5 103779-01 O.D.S. Pilot, Natural Gas • • 1

103778-01 O.D.S. Pilot, Propane/LP Gas • • 1

6 112713-01 Pilot Bracket, Natural Gas • • 1

112713-03 Pilot Bracket, Propane/LP Gas • • 1

7 098249-01 Nut, ODS • • • • 2

8 M11084-26 Screw • • • • 8

9 112782-01 Air Deactor Bracket • • 1

112782-02 Air Deactor Bracket • • 1

10 101480-12 Jumper Wire • • • • 1

11 101004-11 Rear Burner Injector, Natural • 1

101004-10 Rear Burner Injector, Propane/LP • 1

101004-04 Rear Burner Injector, Natural • 1

101004-02 Rear Burner Injector, Propane/LP • 1

12 101004-11 Front Burner Injector, Natural • 1

101004-10 Front Burner Injector, Propane/LP • 1

101004-08 Front Burner Injector, Natural • 1

101004-06 Front Burner Injector, Propane/LP • 1

13 112708-01 Remote Burner Tube • • • • 1

14 M12461-26 Screw • • • • 5

15 099918-02 Pilot Regulator, Natural Gas • • 1

16 099387-12 Pilot Tube, Natural Gas • • 1

099387-09 Pilot Tube, Propane/LP • • 1

17 098264-02 Male Fitting • • • • 1

18 103781-01 Gas Control Valve (NG) • • 1

103781-02 Gas Control Valve (LP) • • 1

19 103784-01 Control Knob Extension • • • • 1

20 103784-02 Flame Adjustment Knob Extension • • • • 1

21 111173-01 Remote Valve Bracket • • • • 1

22 112715-01 Remote Knob Heat Shield • • • • 1

23 098271-12 Ignitor Cable • • • • 1

24 100609-01 Pilot Tube, Natural Gas • 1

099387-14 Pilot Tube, Natural Gas • 1

PARTS AVAILABLE NOT SHOWN

112717-01 Remote Sensor Bracket • • • • 1

100563-01 Warning Plate • • • • 1

103877-01 Lighting Instruction Plate • • • • 1

100639-02 Caution Decal • • • • 1

101137-02 Hardware Kit • • • • 1

GA6060 Lava Rock • • • • 1

111910-01 Thermostat Remote Kit • • • • 1

** Not a eld replaceable part.

CRB2618NR

CRB2618PR

HRB3924NR/

CRB3624/30NR

HRB3924PR/

CRB3924/30PR

www.desatech.com 119426-01A42

SERVICE HINTS

When Gas Pressure Is Too Low

• pilot will not stay lit

• burners will have delayed ignition

• heater will not produce specied heat

• propane/LP gas supply may be low

You may feel your gas pressure is too low. If so, con-

tact your local propane/LP or natural gas supplier.

TECHNICAL SERVICE

You may have further questions about installation,

operation or troubleshooting. If so, contact DESA

Heating Products’ Technical Service Department

at 1-866-672-6040. When calling please have your

model and serial numbers of your heater ready.

You can also visit DESA Heating Products’ techni-

cal services web site at www.desatech.com.

REPLACEMENT PARTS

Note: Use only original replacement parts. This

will protect your warranty coverage for parts

replaced under warranty.

PARTS UNDER WARRANTY

Contact authorized dealers of this product. If

they can’t supply original replacement part(s),

call DESA Heating Products’ Technical Service

Department at 1-866-672-6040.

When calling DESA Heating Products, have

ready

• your name

• your address

• model and serial numbers of your heater

• how heater was malfunctioning

• type of gas used (propane/LP or natural gas)

• purchase date

Usually, we will ask you to return the part to the

factory.

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they

can’t supply original replacement part(s), call

DESA Heating Products at 1-866-672-6040 for

referral information.

When calling DESA Heating Products, have

ready

• model number of your heater

• the replacement part number

ACCESSORIES

Purchase these heater accessories from your local

dealer. If they can not supply these accessories,

call DESA Heating Products at 1-866-672-6040

for referral information. You can also write to the

address listed on the back page of this manual.

EQUIPMENT SHUTOFF VALVE

GA5010

For all models. Equipment shutoff valve with 1/8"

NPT tap. Fits 1/2" NPT pipe.

FIREPLACE HOOD

Black - GA6050

Brass - GA6052

Antique Brass - GA6053

For all models. Helps deect heat away from

mantel or wall above replace. Fits openings 28"

to 48" wide.

www.desatech.com

119426-01A 43

RECEIVER AND HAND-HELD

THERMOSTAT REMOTE CONTROL

KIT - HRC200

For all Remote-Ready Models. Allows the re-

place to be operated in a manually or thermostati-

cally controlled mode. You can turn the replace

on and off without ever leaving the comfort of

your easy chair. A wall-mount docking station

is included.

RECEIVER AND HAND-HELD

REMOTE CONTROL KIT - HRC100

For all Remote-Ready Models. Allows the re-

place to be turned on and off by using a hand-held

remote control. A wall-mount docking station is

included.

WALL-MOUNT THERMOSTAT

SWITCH - GWMT1

(Not Shown)

For all Remote-Ready Models. The desired com-

fort setting can be selected on the wall thermostat

and the log heater will automatically cycle from

pilot to the heat setting selected.

WALL-MOUNT ON/OFF SWITCH

GWMS2

(Not Shown)

For all Remote-Ready Models. Allows the gas

log heater to be turned on and off with a wall

switch.

ACCESSORIES

Continued

VENT-FREE LOGMATE® FIREBOXES

(Not Shown)

Available in 32", 36" and 42" models. Circu-

lating reboxes feature louvers and an optional

blower. Non-circulating, smooth face models are

ideal for custom trim applications such as stone

or marble.

FB32C (CIRCULATING), FB32NC

(NON-CIRCULATING) SERIES

FIREBOXES

(Not Shown)

For 18" and 24" log models.

FB36CA, FB42C SERIES CIRCULATING),

FB36NCA, FB42NC SERIES FIREBOXES

(NON-CIRCULATING)

(Not Shown)

For all log models.

DAMPER CLAMP - GA6080

(Not Shown)

For Remote-Ready Models. Permanently opens

chimney ue damper for vented operation.

LAVA ROCK - GA6060

(Not Shown)

For all models. Order when additional rock is

desired. (1.8 lb. bag)

CLEANING KIT - GCK

(Not Shown)

For all models. Your vent-free gas appliance re-

quires regular cleaning and maintenance to prevent

performance problems. This kit gives you the tools

and instructions to make it easy to clean all critical

areas of your appliance.

INFORMATION VIDEO - 108917-01

For all models. A care and maintenance video is

available by calling 1-866-672-6040. You may also

email your request to

productsupport@desaint.com.

FIRE CRACKLE - CF6-A

(Not Shown)

For all models. Creates the sound of a real burn-

ing re.

2701 Industrial Drive

P.O. Box 90004

Bowling Green, KY 42102-9004

www.desatech.com

NOT A UPC

WARRANTy INFORMATION

kEEP THIS WARRANTy

Model

Serial No.

Date Purchased

Always specify model and serial numbers when communicating with the factory.

We reserve the right to amend these specications at any time without notice. The only warranty applicable is our

standard written warranty. We make no other warranty, expressed or implied.

LIMITED WARRANTy

VENT-FREE GAS LOG HEATERS

DESA Heating Products warrants this product to be free from defects in materials and components for four (4) years

from the date of rst purchase, provided that the product has been properly installed, operated and maintained in

accordance with all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled check

must be presented.

This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required

to restore this heater to proper operating condition and an allowance for labor when provided by a DESA Heating

Products Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product

and/or DESA Heating Products who will provide original factory replacement parts. Failure to use original factory

replacement parts voids this warranty. The heater MUST be installed by a qualied installer in accordance with

all local codes and instructions furnished with the unit.

This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts

that fail or become damaged as a result of misuse, accidents, lack of proper maintenance or defects caused by

improper installation. Travel, diagnostic cost, labor, transportation and any and all such other costs related to

repairing a defective heater will be the responsibility of the owner.

TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE

OF THE PRODUCT; THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED

WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUD-

ING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR

(4) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA HEATING

PRODUCTS’ LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND

DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER

INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of

incidental or consequential damages, so the above limitation on implied warranties or exclusion or limitation on

damages may not apply to you.

This warranty gives you specic legal rights and you may also have other rights that vary from state to state.

For information about this warranty write:

119426-01

Rev. A

05/06

119426 01

Desa Hrb3624 Users Manual

HRB3624 1af57e6a-cb74-9ec4-c5ed-f8c5f94ce2e9

VUL18, VUL24, VUL30 to the manual 1af57e6a-cb74-9ec4-c5ed-f8c5f94ce2e9

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