Desa CFFP18NT Quick start guide

For more information, visit www.desatech.com

WARNING: If the information in this manual is not

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

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

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

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



— WHAT TO DO IF YOU SMELL GAS

 

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



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

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

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



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

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

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

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

ALL-IN-ONE UNVENTED (VENT-FREE) GAS FIREPLACE SYSTEM

OWNER’S OPERATION AND INSTALLATION MANUAL

MODELS CFFP18NT AND CFFP18PT

www.desatech.com 123779-01C2

SAFETY

 

 

alteration, service or

maintenance can cause

   -



for correct installation

  -

   

additional information

   -





WARNING: This is an

  -

    

from the room in which





and ventilation air must

Air

for Combustion and Ven-

tilation



-

stalled in an aftermarket,*

 

 

-





     

   

   

   



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

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

   

  

chemicals known to the State

of California to cause cancer or

-







    -

    

    

    

    -





TABLE OF CONTENTS

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

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

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

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

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

Assembly............................................................. 6

Air for Combustion and Ventilation ...................... 7

Installation ........................................................... 9

Operation........................................................... 16

Inspecting Burners............................................. 17

Cleaning ............................................................ 18

Troubleshooting................................................. 19

Specications .................................................... 23

Service Hints ..................................................... 23

Technical Service............................................... 23

Replacement Parts............................................ 23

Parts .................................................................. 24

Accessories ....................................................... 27

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

www.desatech.com

123779-01C 3





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

carbon monoxide poisoning resemble the u,

with headaches, 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 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 replace.

    





-







WARNING: Do not allow fans







    

   



    







SAFETY

Continued

  

    





    -

    



away from hot surfaces to avoid

-







   -

dren when they are in the room







-



    

-

-



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.

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 replace shall not be installed in a

bathroom.

www.desatech.com 123779-01C4

SAFETY

Continued

11. Keep all air openings in front and at bottom

of heater clear and free of debris. This will

insure enough air for proper combustion.

12. Do not run replace

• where ammable liquids or vapors are

used or stored.

• under dusty conditions.

13. Do not use this replace to cook food or

burn paper or other objects.

14. Never place any objects in the replace

or on logs.

15. Do not use replace if any part has been

under water. Immediately call a qualied

service technician to inspect the room

replace and to replace any part of the

control system and any gas control which

has been under water.

16. Turn off fireplace and let cool before

servicing. Only a qualied service person

should service and repair replace.

17. Operating replace above elevations of

4,500 feet could cause pilot outage.

18. Do not operate fireplace if any log is

broken. Do not operate replace if a log

is chipped (dime-sized or larger).

19. To prevent performance problems, do not

use propane/LP fuel tank of less than 100

lbs. capacity.

20. Provide adequate clearances around air

openings.

5. Do not use this replace as a wood-burn-

ing replace. Use only the logs provided

with the replace.

6. Do not add extra logs or ornaments such

as pine cones, vermiculite or rock wool.

Using these added items can cause soot-

ing. Do not add lava rock around base.

Rock and debris could fall into the control

area of replace.

7. This replace is designed to be smokeless.

If logs ever appear to smoke, turn off re-

place and call a qualied service person.

Note: During initial operation, slight smok-

ing could occur due to log curing and re-

place burning manufacturing residues.

8. To prevent the creation of soot, follow the

instructions in Cleaning, page 18.

9. Before using furniture polish, wax, carpet

cleaner or similar products, turn replace

off. If heated, the vapors from these prod-

ucts may create a white powder residue

within burner box or on adjacent walls or

furniture.

10. This replace needs fresh air ventilation to

run properly. This replace has an Oxygen

Depletion Sensing (ODS) safety shutoff

system. The ODS shuts down the re-

place if not enough fresh air is available.

See Air for Combustion and Ventilation,

page 7. If replace keeps shutting off, see

Troubleshooting, page 19.

LOCAL CODES

Install and use replace 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

State of Massachusetts: The installation

must be made by a licensed plumber or

gas tter in the Commonwealth of Mas-

sachusetts.

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

123779-01C 5

PRODUCT IDENTIFICATION

Screen

Control Knob and

Piezo Ignitor Behind

Access Door

Log

Figure 1 - All-In-One Fireplace (Mantel Not Shown)

PRODUCT FEATURES

Brick Liners

ALL-IN-ONE ASSEMBLY

This all-in-one assembly comes with the

replace already installed in the mantel for

easy installation.

UNPACKING

CAUTION: Do not remove



   -



1. Remove replace and mantel from carton.

Log is wrapped and inside replace. Do

not remove at this time.

2. Remove all protective packaging applied

to replace for shipment.

3. Make sure replace includes one hard-

ware packet.

4. Check replace for any shipping damage.

If replace is damaged call DESA Heat-

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

ment parts before returning to dealer.

5. Remove hood from shipping location

inside back of mantel. Discard screws.



This replace has a pilot with an Oxygen

Depletion Sensing (ODS) safety shutoff

system. The ODS/pilot is a required feature

for vent-free room replaces. The ODS/pilot

shuts off the replace if there is not enough

fresh air.

Gas Line

Access Hole

www.desatech.com 123779-01C6

WARNING: Always have



-

 





    







   





Tools Required:

• Phillips screwdriver

• 5/16" hex wrench

• slotted screwdriver

• scissors

1. Remove two screws that hold replace

screen in place for shipping. These

screws are located near top of screen.

Discard screws. Lift replace screen up

and pull out to remove (see Figure 2). Set

screen aside until installation has been

completed.

Screen

Shoulder

Screw

Figure 2 - Removing and Replacing

Screen (Mantel Not Shown)

ASSEMBLY

2. Remove all packaging from inside of

unit.

3. Remove bubble wrap from logs and dis-

card.

4. Check installation of brick liners. Brick

liners are in 4 pieces: 2 sides, 1 back and

1 top.

www.desatech.com

123779-01C 7

AIR FOR COMBUSTION AND VENTILATION

WARNING: This heater shall

      

-

    

  -

National Fuel Gas

Code, ANSI Z223.1/NFPA 54, the

International Fuel Gas Code, or





     

  



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 ap-

pliances 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 appli-

ances.





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 7 through 9 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.

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

construction where:

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

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

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

2



and

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

and

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

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



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

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

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



If your home meets all of these three cri-

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

  Ventilation Air From Outdoors,



If your home does not meet all of the three

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

Fresh-Air Flow For Fireplace Location,





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 ft3 per 1,000

Btu/hr (4.8 m3/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 ft3 per 1,000 Btu/hr

(4.8 m3/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 consid-

ered a part of the unconned space.

* Adjoining rooms are communicating only if

there are doorless passageways or ventilation

grills between them.

www.desatech.com 123779-01C8

AIR FOR COMBUSTION AND VENTILATION

Continued

Example: 35,840 Btu/Hr (maximum the

space can support)

40,000 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, page 9.

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.

WARNING:If the areainwhich





-





   National Fuel

Gas Code,ANSI Z223.1/NFPA54,

the International Fuel Gas Code,







This fresh air would come from an adjoining

unconned 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 3 on page 9). You can also

remove door into adjoining room (see option

3, Figure 3 on page 9). Follow the National

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

for Combustion and Ventilation for required

size of ventilation grills or ducts.

30,000

10,000

40,000

DETERMINING FRESH-AIR FLOW







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

doorless 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 16 ft. (length) x 14 ft.

(width) x 8 ft. (ceiling height) = 1792 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: 1792 cu. ft. (volume of space) x 20

= 35,840 (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.

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

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)

www.desatech.com

123779-01C 9



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

AIR FOR COMBUSTION AND VENTILATION

Continued

Figure 3 - Ventilation Air from Inside

Building

Remove

Door into

Adjoining

Room,

Option 3

V e ntilation Grills

Into Adjoining Room,

Option 2

12"

V e ntilation

Grills

into

Adjoining

Room,

Option 1

Figure 4 - Ventilation Air from Outdoors

Outlet

Air

V e ntilated

Attic

Outlet

Air

Inlet

Air

Inlet Air V e ntilated

Crawl Space

T o

Crawl

Space

T o Attic

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.

INSTALLATION

NOTICE: This heater is intended

    





     -



















   



WARNING: Never install the



 

 

   

   



-





 

 

 

www.desatech.com 123779-01C10

INSTALLATION ITEMS

Before installing replace, make sure you

have the items listed below.

• external regulator (supplied by installer, for

propane/LP units only)

• piping (check local codes)

• sealant (resistant to propane/LP gas)

• equipment shutoff valve *

• test gauge connection*

• ground joint union

• sediment trap

• tee joint

• pipe wrench

* A CSA design-certied equipment shutoff

valve with 1/8" NPT tap is an acceptable al-

ternative to test gauge connection. Purchase

optional CSA design-certified equipment

shutoff valve from your dealer.



WARNING: Maintain the

minimum clearances shown in

      





     -

    



   -



CAUTION: If you install the



 



 



For convenience and efciency, install re-

place

• where there is easy access for operation,

inspection and service

• in coldest part of room

-

    

currents move heat to wall sur-







    

    

   -



intheairexist,maydiscolorwalls



    

-





IMPORTANT: Vent-free replaces add mois-

ture to the air. Although this is benecial,

installing replace in rooms without enough

ventilation air may cause mildew to form from

too much moisture. See Air for Combustion

and Ventilation, page 7.

Note: Your replace is designed to be used in

zero clearance installations. Wall or framing

material can be placed directly against any

exterior surface on rear, sides or top of your

replace.



Use correct gas type (natural or propane/LP)

for your unit. If your gas supply is not correct,

do not install replace. Call dealer where you

bought replace for proper type replace.







-





INSTALLATION

Continued

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