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123779-01C

18

INSpEcTING BURNERS

Continued 

bURNER FLAME PATTERN

Figure 18 shows a correct burner flame pat

-

tern.  Figure  19  shows  an  incorrect  burner 

flame  pattern.  The  incorrect  burner  flame 
pattern  shows  sporadic,  irregular  flame  tip

-

ping. The flame should not be dark or have 

an orange/reddish tinge.

Note: When using the fireplace the first time, 
the flame will be orange for approximately one 

hour until the log cures.

If burner flame pattern is incorrect, as shown 

in Figure 21

•  turn fireplace off (see 

To Turn Off Gas to 

Appliance

, page 17)

•  see 

Troubleshooting

, page 19

Figure 18 - Correct Burner Flame Pattern

Figure 19 - Incorrect Burner Flame Pattern 

cLEANING

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. If using compressed air in a can, please 

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

follow directions on the can, you could dam

-

age the pilot assembly.

1.  Shut off unit, including pilot. Allow 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 20).

3.  Blow air through the ports/slots and holes 

in the burner.

4.  Check 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.

 WARNING: Turn off fireplace 

and let cool before cleaning.

  CAUTION:  You  must  keep 

control  areas,  burner  and  cir

-

culating  air  passageways  of 

fireplace  clean.  Inspect  these 

areas  of  fireplace  before  each 

use.  Have  fireplace  inspected 

yearly  by  a  qualified  service 

person.  Fireplace  may  need 

more frequent cleaning due to 

excessive  lint  from  carpeting, 

pet hair, bedding material, etc.

  WARNING:  Failure  to  keep 

primary  air  opening  of  burner 

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 pro-

vides a clean burning flame. 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  rec-
ommend that you clean the unit every three 

months during operation, or as needed, and 
have fireplace inspected yearly by a qualified 

service person.

Figure 20 - Injector Holder On Outlet 

Burner Tube

Burner 
Tube

Injector 
Holder

Primary 
Air Inlet 
Holes

Ports/Slots

Summary of Contents for CFFP18NT

Page 1: ...y appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your...

Page 2: ...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 WARNING...

Page 3: ...tered burner patterns can cause sooting Due to high temperatures the appliance should be located out oftrafficandawayfromfurniture and draperies SAFETY Continued Do not place clothing or other flammab...

Page 4: ...ea of fireplace 7 This fireplace is designed to be smokeless If logs ever appear to smoke turn off fire place and call a qualified service person Note During initial operation slight smok ing could oc...

Page 5: ...ton Log is wrapped and inside fireplace Do not remove at this time 2 Remove all protective packaging applied to fireplace for shipment 3 Make sure fireplace includes one hard ware packet 4 Check firep...

Page 6: ...hillips screwdriver 5 16 hex wrench slotted screwdriver scissors 1 Remove two screws that hold fireplace screen in place for shipping These screws are located near top of screen Discard screws Lift fi...

Page 7: ...e 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 mus...

Page 8: ...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 FOR FI...

Page 9: ...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 wi...

Page 10: ...and service in coldest part of room CAUTION This fireplace cre ates warm air currents These currents move heat to wall sur faces next to fireplace Installing fireplacenexttovinylorclothwall coverings...

Page 11: ...Combustible to Wall Minimum 16 from Side Wall Example NOTICE Surface temperatures ofadjacentwallsandmantelsbe comehotduringoperation Walls and mantels above the firebox may become hot to the touch If...

Page 12: ...e gas line to fireplace gas regulator See Connecting to Gas Supply 5 Check all gas connections for leaks See Checking Gas Connections page 14 CONNECTING TO GAS SUPPLY WARNING This appliance requires a...

Page 13: ...Gas Line from Fireplace Gas Regulator Provided With Fireplace To Gas Regulator Equipment Shutoff Valve Propane LP To External Regulator NaturAL To Gas Supply CONNECTING Fireplace to Gas Supply Install...

Page 14: ...e 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 sys tem Apply noncorrosive leak detection fluid to all j...

Page 15: ...lve to gas regulator see Figure 11 page 14 or Figure 12 Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light fireplace see Operation pa...

Page 16: ...he screen in place Make sure fireplace screen is installed before run ning fireplace Figure 14 Control Knob In the OFF Position Piezo Ignitor Control Knob NOTICE During initial opera tion of new firep...

Page 17: ...ghting Instructions page 16 2 With control knob pressed in strike match Hold match to pilot until pilot lights 3 Keep control knob pressed in for 30 sec onds after lighting pilot After 30 seconds rele...

Page 18: ...pect burner pilot and primary air inlet holes on injector holder for dust and dirt see Figure 20 3 Blow air through the ports slots and holes in the burner 4 Check injector holder located at the end o...

Page 19: ...ctrode not con nected to ignitor cable 2 Ignitor cable pinched or wet 3 Broken ignitor cable 4 Bad ignitor 5 Ignitor electrode posi tioned wrong 6 Ignitor electrode broken REMEDY 1 Reconnect ignitor c...

Page 20: ...ow gas pressure B Dirty or partially clogged ODS pilot 5 Thermocouple connection loose at control valve 6 Thermocouple damaged 7 Control valve damaged 1 Inlet gas pressure is too low 2 Burner orifice...

Page 21: ...heated vapors from furniture polish wax carpet cleaners etc may turn into white powder residue 1 Not enough combustion ventilation air REMEDY 1 Contact local natural or propane LP gas company 2 Clean...

Page 22: ...2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warning statement at top of page 2 Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning...

Page 23: ...on tact DESA Heating LLC at 1 866 672 6040 When calling please have your model and serial numbers of your heater ready You can also visit DESA Heating LLC s web site at www desatech com Replacement Pa...

Page 24: ...www desatech com 123779 01C 24 Parts Firebox Models CFFP18NT AND CFFP18PT Not shown to scale 1 2 4 3 5 6 7 9 10 11 10 8 16 17 12 13 14 15...

Page 25: ...1 124043 01 Top Trim Panel 1 2 123698 01 21 Fireplace Wrapper 1 3 123701 01 Firebox Hood 1 4 123700 01 Heat Deflector 1 5 118941 04 Top Liner 1 6 118941 02 Left Side Liner 1 7 118941 01 Rear Liner 1 8...

Page 26: ...www desatech com 123779 01C 26 Parts Burner Models CFFP18NT AND CFFP18PT 1 4 5 6 8 16 9 10 11 15 12 7 2 3 17 13 14...

Page 27: ...ur fireplace When ordering parts follow the instructions listed under Replacement Parts on page 23 of this manual KEY NO PART NO DESCRIPTION QTY 1 119310 01 Burner 1 2 112881 05 Pilot Shield 1 3 12063...

Page 28: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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