Desa HDVF3018N Quick start guide

UNVENTED (VENT-FREE) GAS LOG HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL



VARIAbLE MANUALLy-

CONTROLLED MODELS

HDVF3018P AND HDVF3018N



OFF

PILOT

For more information, visit www.desatech.com







         





— WHAT TO DO IF YOU SMELL GAS

 

 



 



 



 -







www.desatech.com 119421-01E2

SAFETy

  

 

  

  

   -



  

  -

   

 

   -





   -

   

    -

   

  



   

   -





    -

   

  









    







  

  -

  

Refer to Air for Combustion

and Ventilation



-



 

 

-





     

   

   

   







   

  

    



-



TAbLE OF CONTENTS

Safety .................................................................. 2

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

Product Identication........................................... 5

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

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

Air for Combustion and Ventilation ...................... 5

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

Operation........................................................... 17

Inspecting Burners ............................................ 19

Cleaning and Maintenance................................ 19

Troubleshooting................................................. 21

Specications .................................................... 24

Replacement Parts............................................ 25

Technical Service............................................... 25

Service Hints ..................................................... 25

Accessories ....................................................... 25

Parts .................................................................. 26

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

www.desatech.com

119421-01E 3





   

    



    

   

   







   Early signs

of carbon monoxide poisoning resemble the

u, with headaches, dizziness or nausea. If

you have these signs, the heater may not be

working properly.  Have

heater serviced. Some people are more af-

fected by carbon monoxide than others. These

include pregnant women, people with heart or

lung disease or anemia, those under the inu-

ence of alcohol and those at high altitudes.

Natural and

propane/LP gases are odorless. An odor-

making agent is added to the gas. 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 heater.

    

     











    

   



SAFETy

Continued

     

   

-



    







 

    







    





   







-





    



    



    

-

-



1. 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)

inside any structure. Locate propane/LP

supply tank(s) outdoors (propane/LP units

only).

www.desatech.com 119421-01E4

3. To prevent performance problems, do

not use propane/LP fuel tank of less than

100 lb. capacity (propane/LP units only).

4. If you smell gas

• shut off gas supply

• do not try to light any appliance

• do not touch any electrical switch; do not

use any phone in your building

• immediately call your gas supplier from

a neighbor’s phone. Follow the gas sup-

plier’s instructions

• if you cannot reach your gas supplier,

call the re department

5. This heater shall not be installed in a

bedroom or bathroom unless installed as

a vented appliance (see Installing Damper

Clamp Accessory for Vented Operation,

page 11). This gas log set may not be

installed as a vented appliance in a bed-

room or bathroom in the Commonwealth

of Massachusetts.

6. Before installing in a solid fuel burning re-

place, 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.

7. Do not burn solid-fuel in a masonry or

UL127 factory-built replace in which a

vent-free room heater is installed.

8. 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.

9. This log heater is designed to be smoke-

less. If logs ever appear to smoke, turn off

heater and call a qualied service person.

Note: During initial operation, slight smok-

ing could occur due to log curing and

heater burning manufacturing residues.

10. To prevent the creation of soot, follow the

instructions in Cleaning and Maintenance,

page 19.

11. 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 or furniture.

12. This heater needs fresh, outside air ven-

tilation to run properly. This heater has an

Oxygen Depletion Sensing (ODS) safety

shutoff system. The ODS shuts down the

heater if not enough fresh air is available.

See Air for Combustion and Ventilation,

page 5. If heater keeps shutting off, see

Troubleshooting, page 21.

13. Do not run heater

• where ammable liquids or vapors are

used or stored

• under dusty conditions

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

paper or other objects.

15. Do not use heater if any part has been ex-

posed 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.

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

Do not operate heater if a log is chipped

(dime-sized or larger).

17. Turn heater off and let cool before servic-

ing. Only a qualied service person should

service and repair heater.

18. Operating heater above elevations of

4,500 feet could cause pilot outage.

19. Provide adequate clearances around air

openings.

SAFETy

Continued

LOCAL CODES

Install and use heater with care. Follow all

local codes. In the absence of local codes,

use the latest 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

   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

119421-01E 5

Figure 1 - Vent-Free Gas Log Heater

Base

Grate

Log Set

Control

Knob Burner

Piezo

Ignitor

PRODUCT IDENTIFICATION

Note: Do not pick up heater base assem-

bly 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 heater for any shipping damage.

If heater is damaged call DESA Heat-

ing, LLC at 1-866-672-6040 for replace-

ment parts before returning to dealer.

UNPACkING



     -





1. Remove logs and heater base assembly

from carton.

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 realistic

dancing, yellow ames. 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.

SAFETY PILOT

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.

PIEZO IGNITION SYSTEM

This heater has a piezo ignitor. This system re-

quires no matches, batteries or other sources

to light heater.

AIR FOR COMbUSTION AND VENTILATION





National Fuel Gas Code, ANSI Z223.1/

NFPA 54, the International Fuel Gas Code,





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.

www.desatech.com 119421-01E6

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.



The following are excerpts from National Fuel

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

Combustion and Ventilation.

All spaces in homes fall into one of the three

following ventilation classications:

1. Unusually Tight Construction

2. Unconned Space

3. Conned Space

The information on pages 5 through 7 will help

you classify your space and provide adequate

ventilation.



The air that leaks around doors and windows

may provide enough fresh air for combustion

and ventilation. However, in buildings of un-

usually tight construction, you must provide

additional fresh air.





 -

    







 



      

     





    









See Ventilation Air From Outdoors



    Determining

Fresh-Air Flow for Heater Location



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/

hr (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/hr

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

all appliances installed in that space. Rooms

communicating 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





Use this work sheet to determine if you have

a conned or unconned space.

Includes the room in which you will install

replace plus any adjoining rooms with door-

less passageways 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) = 2,560 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: 2,560 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

AIR FOR COMbUSTION AND VENTILATION

Continued

www.desatech.com

119421-01E 7

* Do not include direct-vent gas appliances.

Direct-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

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 used)

Example: 51,200 Btu/Hr (maximum the

space can support)

79,000 Btu/Hr (actual amount of

Btu/Hr used)

The space in the example is a conned space

because the actual Btu/Hr used is more than the

maximum 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

adjoining room. If the extra space provides

an unconned space, remove door to adjoin-

ing room or add ventilation grills between

rooms. See Ventilation Air From Inside

Building.

B. Vent room directly to the outdoors. See

Ventilation Air From Outdoors.

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 maxi-

mum Btu/Hr the space can support, the space is

an unconned space. You will need no additional

fresh air ventilation.







-





   National Fuel

Gas Code,ANSI Z223.1/NFPA 54,

the International Fuel Gas Code,







This fresh air would come from an adjoining

unconfined space. When ventilating to an

adjoining unconned space, you must provide

two permanent 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, Air for Combustion and Ventilation for

required size of ventilation grills or ducts.

AIR FOR COMbUSTION AND VENTILATION

Continued

40,000

39,000

79,000

Figure 3 - Ventilation Air from Outdoors

Figure 2 - Ventilation Air from Inside

Building

Outlet

Air

V e ntilated

Attic

Outlet

Inlet

Air

Inlet Air V e ntilated

Crawl Space

T o

Crawl

Space

T o Attic

Remove

Door into

Adjoining

Room,

Option

Ve ntilation Grills

Into Adjoining Room,

Option 2

Ve ntilation

Grills Into

Adjoining

Room,

Option 1

12"



Provide extra fresh air by using ventilation

grills or ducts. You must provide two perma-

nent 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, 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 thermo-

stat-controlled power vent. Heated air entering

the attic will activate the power vent.

www.desatech.com 119421-01E8

INSTALLATION





     

    



 

   

   







 

 

 -

    

-

    



   





-







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 Ventila-

tion, page 5.

CHECK GAS TYPE

Use the correct gas type (natural or propane/

LP) for your unit. If your gas supply is not cor-

rect, do not install heater. Call dealer where

you bought heater for proper type heater.







-







    





     -



















 -







-

    







    

-



   

    









    



    



-



     

   



www.desatech.com

119421-01E 9

INSTALLATION AND CLEARANCES



   

   







MINIMUM FIREPLACE CLEARANCE



Side Wall 16", Ceiling 42"





Height  Front







17" 14" 24" 20"

* Measured at 14" depth.

Carefully follow the instructions below. This

will ensure safe installation into a masonry,

UL127-listed manufactured replace or certi-

ed vent-free rebox.





Ceiling

A. Clearances from the side of the replace

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 com-

bustible material must be 4" from the side

of the replace opening (see Figure 4).

Note: When installing your gas logs into

a manufactured rebox, follow rebox

manufacturer’s instructions for minimum

clearances to combustible materials.

B. Clearances from the top of the replace

opening to the ceiling should not be less

than 42".

INSTALLATION

Continued

Figure 4 - Minimum Clearance for

Combustible to Wall

*Minimum 16" from Side Wall

Example









    





Installing Damper

Clamp Accessory for Vented

Operation







Note: If using a mantel, proceed to If Using

Mantel, page 10. If not using a mantel, follow

the information below.

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 noncombustible material be-

hind it. Noncombustible material must extend

at least 8" up. If noncombustible material is

less than 12", you must install the replace

hood accessory. See Figure 5, page 10 for

minimum clearances.

IMPORTANT: If you cannot meet these mini-

mum clearances, you must operate heater

with chimney ue damper open. Go to Install-

ing Damper Clamp Accessory for Vented

Operation, page 11.

www.desatech.com 119421-01E10



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 noncombustible material be-

hind it. Noncombustible material must extend

at least 8" up. Even if noncombustible material

is more than 12", you may need the hood ac-

cessory to deect heat away from your mantel

shelf. See Figure 5 and 6 and Figure 7 on

page 11 for minimum clearances.

MANTEL CLEARANCES

In addition to meeting noncombustible mate-

rial clearances, you must also meet required

clearances between replace opening and

mantel shelf. If you do not meet the clearances

in Figure 6 you will need a hood.



If you meet minimum clearance between

mantel shelf and top of replace opening, a

hood is not required (see Figure 6).





If minimum clearances in Figure 6 are not

met, you must have a hood. When using a

hood there are still certain minimum mantel

clearances required. Follow minimum clear-

ances shown in Figure 7, page 11 when

using hood.



    

   

    

    



   

   

   





INSTALLATION

Continued











12" or more Noncombustible material

okay.

Between 8"

and 12"

Noncombustible material

okay.

Less than 8" Noncombustible material

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.

IMPORTANT: If you cannot meet these mini-

mum clearances, you must operate heater

with chimney ue damper open. Go to Install-

ing Damper Clamp Accessory for Vented

Operation, page 11.

Heat Resistant

Material

(A)

Figure 5 - Heat Resistant Material (Slate,

Marble, Tile, etc.) Above Fireplace

Figure 6 - Minimum Mantel Clearances

Without Using Hood

Minimum

Noncombustible

Material

Minimum

Noncombustible

Material Height

Distances to

Underside of

Mantel

T o p of

Fireplace

Opening

Underside of

Mantel Shelf

(A)

8" 14" 17" 20"

All minimum

distances are

in inches

2 1/2"

10"

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