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11

105566

OWNER’S MANUAL

CHECKING GAS
CONNECTIONS

Pressure Testing Gas Supply
Piping System

Test Pressures In Excess Of 1/2 PSIG
(3.5 K Pa)

1.

Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply pip-
ing 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
using compressed air or opening main gas
valve located on or near gas meter.

4.

Check all joints of gas supply piping
system. Apply mixture of liquid soap
and water to gas joints. Bubbles form-
ing show a leak.

5.

Correct all leaks at once.

6.

Reconnect heater and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks.

Test Pressures Equal To or Less Than 1/2
PSIG (3.5 K Pa)

1.

Close equipment shutoff valve (see Fig-
ure 15).

2.

Pressurize supply piping system by either
using compressed air or opening main gas
valve located on or near gas meter.

3.

Check all joints from gas meter to equip-
ment shutoff valve (see Figure 16). Ap-
ply mixture of liquid soap and water to
gas joints. Bubbles forming show a leak.

4.

Correct all leaks at once.

 WARNING: Never use an open

flame to check for a leak. Apply a
mixture of liquid soap and water
to all joints. Bubbles forming show
a leak. Correct all leaks at once.

 WARNING: Test all gas pip-

ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.

Pressure Testing Heater Gas
Connections

1.

Open equipment shutoff valve (see Fig-
ure 15).

2.

Open main gas valve located on or near
gas meter.

3.

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

4.

Check all joints from equipment shutoff
valve to control valve (see Figure 15).
Apply mixture of liquid soap and wa-
ter to gas joints. Bubbles forming show
a leak.

5.

Correct all leaks at once.

6.

Light heater (see Operating Heater,
pages 11 and 12 for non-thermostat
models or pages 13 and 14 for thermo-
stat models). Check the rest of the in-
ternal joints for leaks.

7.

Turn off heater (see To Turn Off Gas
to Appliance
, page 12 for non-thermo-
stat models or page 13 for thermostat
models).

8.

Replace front panel.

Figure 15 - Equipment Shutoff Valve

Figure 16 - Checking Gas Joints

Gas Meter

OPERATING
HEATER

NON-THERMOSTAT MODELS
FA-3B AND FA-5B

INSTALLATION

Continued

Continued

FOR YOUR SAFETY

READ BEFORE

LIGHTING

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 floor because
some gas is heavier than air and will
settle on the floor.

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 sup-

plier, call the fire 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
qualified service technician or gas
supplier. Force or attempted repair
may result in a fire or explosion.

D. Do not use this appliance if any part

has been under water. Immediately call
a qualified service technician to inspect
the appliance and to replace any part
of the control system and any gas con-
trol which has been under water.

 WARNING: If you do not fol-

low these instructions exactly, a
fire or explosion may result caus-
ing property damage, personal
injury or loss of life.

Control Valve Location
Non-Thermostat Models

Control Valve Location
Thermostat Models

O

POS

P

Equipment
Shutoff
Valve

Closed

Open

Equipment
Shutoff
Valve

Summary of Contents for Glo-Warm FA-3B

Page 1: ...be performed 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...

Page 2: ...Oxygen Depletion Sensor ODS safety shutoff system The ODS shuts down the heater if not enough fresh air is available See Fresh Air for Combus tion and Ventilation pages 4 through 6 6 Keep all air open...

Page 3: ...afety 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 ig...

Page 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 a...

Page 5: ...Btu Hr 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...

Page 6: ...e 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 A...

Page 7: ...s 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 in a home garage h...

Page 8: ...RNING 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 pane...

Page 9: ...rked locations 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...

Page 10: ...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 IMPORTANT Hold pressure regulat...

Page 11: ...oap and wa ter to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater pages 11 and 12 for non thermostat models or pages 13 and 14 for thermo stat mo...

Page 12: ...alified 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 pi...

Page 13: ...he piezo ignitor to spark and light the pilot gas Keep control knob de pressed for 10 seconds before releas ing If needed repeat steps 5 through 7 until pilot lights Note If pilot does not stay lit re...

Page 14: ...c WARNING Turn off heater and let cool before servicing OPERATING HEATER Continued MANUAL LIGHTING PROCEDURE 1 Follow steps 1 through 5 under Light ing Instructions page 13 2 With control knob pressed...

Page 15: ...or partially 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 tubin...

Page 16: ...eplace burner orifice s 2 Replace burner 3 Replace gas regulator 1 Replace burner 2 Contact local natural gas company 3 Turn control knob until it locks at de sired setting 1 Problem will stop after a...

Page 17: ...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 Moisture condensationnoticedonwindows REMEDY 1...

Page 18: ...03 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 com Washer...

Page 19: ...aservicemanualfromthe 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 wil...

Page 20: ...INFRARED NATURAL GAS HEATER 28 21 27 27 26 7 2 7 1 22 23 24 25 3 4 See Detail ILLUSTRATED PARTS BREAKDOWN FA 3B Burner Assembly 11 10 6 18 16 15 14 7 9 7 13 12 8 19 17 5 4 20 20 20 5 1 5 2 ODS Pilot...

Page 21: ...ve 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 L98124 02 Valve to Regulator Line Assembly 1 15 L98914 01 Pil...

Page 22: ...ATER ILLUSTRATED PARTS BREAKDOWN FA 5B Burner Assembly 33 26 32 32 31 7 2 4 See Detail 7 1 27 28 29 30 3 11 10 4 6 7 5 9 7 23 21 25 24 24 24 24 24 22 20 13 12 8 14 18 25 17 19 15 16 TO B1 TO B2 TO C1...

Page 23: ...L98115 01 Main Inlet Tube Assembly 1 14 L98124 01 Valve to Regulator Line Assembly 1 15 L98914 01 Pilot Regulator Assembly 1 16 L98125 01 Regulator to ODS Line Assembly 1 17 L98116 01 Burner Gas Line...

Page 24: ...ATURAL GAS HEATER ILLUSTRATED PARTS BREAKDOWN FAS 3C Burner Assembly 15 16 13 19 23 22 11 9 12 21 16 14 10 4 23 20 17 18 16 16 29 2 29 28 24 25 1 26 27 16 8 16 13 7 9 17 24 4 See Detail 3 5 6 14 1 14...

Page 25: ...t 1 13 L98411 01 Ignitor Line 1 14 L98071 03 ODS Pilot 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 7 17 L9812...

Page 26: ...TED PARTS BREAKDOWN FAS 5C Burner Assembly 12 11 4 15 16 14 13 16 26 24 28 25 21 28 27 27 27 27 27 22 18 17 19 10 20 23 9 TO B1 TO B2 TO C1 TO C2 16 16 34 2 34 33 29 30 1 31 32 16 8 16 13 7 9 17 29 4...

Page 27: ...1 07 Ignitor Electrode 1 15 L98072 01 ODS Mounting Bracket 1 16 L98817 01 Self Tapping Screw 14 17 L98124 03 Valve to Regulator Gas Line Assembly 1 18 L98914 01 Pilot Regulator Assembly 1 19 L98125 03...

Page 28: ...e 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 main...

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