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107297

OWNER’S MANUAL

PRODUCT
IDENTIFICATION

LOCAL CODES

Install and use heater with care. Follow all
local codes. In the absence of local codes, use
the latest edition of National Fuel Gas Code
ANS Z223.1,
 also known as 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

Figure 1 - Vent-Free Propane/LP Gas Heater (Model FB-5B Shown)

Control Knob

PRODUCT
FEATURES

SAFETY DEVICE

This heater has a pilot with an Oxygen
Depletion 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
requires no matches, batteries, or other
sources to light heater.

THERMOSTATIC HEAT
CONTROL ON THERMOSTAT
MODELS FBS-3C AND FBS-5C

These heaters have a control valve with a
thermostat sensing bulb. This results in the
greatest heater comfort and may result in
lower gas bills.

UNPACKING

1.

Remove heater from carton.

2.

Remove all protective packaging ap-
plied to heater for shipment.

3.

Check heater for any shipping damage.
If heater is damaged, promptly inform
dealer where you bought heater.

Grill
Guard

Burners

Heater
Cabinet

Front
Panel

Содержание FBS-3B

Страница 1: ...ed by a qualified installer service agency or the gas supplier Aftermarket Completion of sale not for purpose of resale from the manufacturer WARNING This is an unvented gas fired heater It uses air o...

Страница 2: ...ir 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 Fresh Air for Combus tion a...

Страница 3: ...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 i...

Страница 4: ...rating of one perm 6 x 10 11 kg per pa sec m2 or less with open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to...

Страница 5: ...Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu...

Страница 6: ...ce To Crawl Space To Attic FRESH AIR FOR COMBUSTION AND VENTILATION Continued Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 12 12 Ventilation Grills into...

Страница 7: ...ing heater in rooms without enough ventilationairmaycausemildewtoformfrom too much moisture See Fresh Air for Com bustion and Ventilation pages 4 through 6 Continued CAUTION If you install the heater...

Страница 8: ...WARNING Maintainminimum clearances shown in Figure 8 If you can provide greater clear ancesfromfloorandjoiningwall INSTALLING HEATER TO WALL Mounting Bracket The mounting bracket is located on back p...

Страница 9: ...ocations using 9 64 drill bit 2 Place mounting bracket onto wall Line up last hole on each end of bracket with holes drilled in wall 3 Insert mounting screws through bracket and into wall studs 4 Tigh...

Страница 10: ...ts This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly IMPORTANT Hold pressure regulator with wrench when connecting it...

Страница 11: ...gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater column 3 and page 12 for non thermo stat models pages 13 and 14 for ther mostat models Check the...

Страница 12: ...qualified service person or supplier for repairs 6 Release downward pressure on con trol knob and turn clockwise to OFF position 7 Press in control knob and turn back to PILOT IGN This will cause the...

Страница 13: ...OFF ON PILOT IGN 1 7 3 5 4 6 2 Figure 23 Burner Patterns Temperature Control Setting Knob Knob FBS 3C FBS 5C ON OFF 3 Pushincontrolknobslightlyandturn clockwise to the OFF posi tion Be sure that the...

Страница 14: ...Turn Off Gas to Ap pliance page 12 for non thermostat mod els or page 13 for thermostat models see Troubleshooting pages 15 through 17 Figure 25 Incorrect Pilot Flame Pattern GRH OV 009 GOOD PILOT Fi...

Страница 15: ...ally clogged ODS pilot 6 Thermocouple damaged 7 Control valve damaged REMEDY 1 Replace ignitor 2 Replace ignitor 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tubing Keep i...

Страница 16: ...r replace burner orifice s 2 Replace burner 3 Replace gas regulator 1 Replace burner 2 Contact local propane LP gas company 3 Turn control knob until it locks at de sired setting 1 Problem will stop a...

Страница 17: ...OBLEM 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 Moisture condensationnoticedonwindows REMEDY 1 V...

Страница 18: ...n KY 42103 3414 270 846 1199 1 800 654 8534 Fax 1 800 846 0090 franktalk aol com Master Parts Dist 1251 Mound Ave NW Grand Rapids MI 49504 2672 616 791 0505 1 800 446 1446 Fax 616 791 8270 www nbmc co...

Страница 19: ...omthe address listed on the back page of this manual Send a check for 5 00 payable to DESA International SERVICE HINTS When Gas Pressure is Too Low pilot will not stay lit burner s will have delayed i...

Страница 20: ...97 INFRARED PROPANE LP GAS HEATER 26 19 25 25 24 7 2 7 1 20 21 22 23 3 4 See Detail ILLUSTRATED PARTS BREAKDOWN FB 3B Burner Assembly 11 10 6 16 7 9 14 7 13 12 8 17 15 5 4 18 18 18 5 1 5 2 ODS Pilot A...

Страница 21: ...98411 01 Ignitor Line 1 10 L98028 01 Control Valve Bracket 1 11 L98054 01 Control Valve Fixed Nut 1 12 L98059 01 Control Valve Main Inlet Nut 1 13 L98115 02 Main Inlet Tube Assembly 1 14 L98123 02 ODS...

Страница 22: ...HEATER ILLUSTRATED PARTS BREAKDOWN FB 5B Burner Assembly 31 24 30 30 29 7 2 4 See Detail 7 1 25 26 27 28 3 11 10 4 6 7 5 9 7 21 19 23 22 22 22 22 22 20 18 13 14 12 8 14 16 23 15 17 TO B1 TO B2 TO C1...

Страница 23: ...1 12 L98059 01 Control Valve Main Inlet Nut 1 13 L98115 01 Main Inlet Tube Assembly 1 14 L98123 01 ODS Gas Line Assembly 1 15 L98116 01 Burner Gas Line Assembly C 1 16 L98117 01 Burner Gas Line Assem...

Страница 24: ...PROPANE LP GAS HEATER ILLUSTRATED PARTS BREAKDOWN FBS 3C Burner Assembly 15 16 13 17 21 20 11 9 12 19 16 14 10 4 21 18 16 16 27 2 27 26 22 23 1 24 25 16 8 16 13 7 9 17 22 4 See Detail 3 5 6 14 1 14 2...

Страница 25: ...tor Bracket 1 12 L98057 01 4 Way Connector Fixed Nut 1 13 L98411 01 Ignitor Line 1 14 L98071 04 ODS Pilot 1 14 1 098514 01 Thermocouple 1 14 2 L98071 07 Ignitor Electrode 1 15 L98072 01 ODS Mounting B...

Страница 26: ...USTRATED PARTS BREAKDOWN FBS 5B Burner Assembly 12 11 4 15 16 14 13 16 24 22 26 23 19 26 25 25 25 25 25 20 17 10 18 21 9 TO B1 TO B2 TO C1 TO C2 16 16 32 2 32 31 27 28 1 29 30 16 8 16 13 7 9 17 27 4 S...

Страница 27: ...Assembly 1 14 1 098514 01 Thermocouple 1 14 2 L98071 07 Ignitor Electrode 1 15 L98072 01 ODS Mounting Bracket 1 16 L98817 01 Self Tapping Screw 14 17 L98123 03 ODS Gas Line Assembly 1 18 L98116 02 Bu...

Страница 28: ...shed 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...

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