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5

104190

OWNER’S MANUAL

FRESH AIR FOR
COMBUSTION AND
VENTILATION

Continued

DETERMINING FRESH-AIR
FLOW FOR HEATER
LOCATION

Determining if You Have a
Confined or Unconfined Space

Use this worksheet to determine if you have
a confined or unconfined space.

Space:

 Includes the room in which you

will install heater 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 20 ft. (length) x

16 ft. (width) x 8 ft. (ceiling height) =
2560 cu. ft. (volume of space)

If additional ventilation to adjoining
room is supplied with grills or open-
ings, add the volume of these rooms to
the total volume of the space.

2.

Divide the space volume by 50 cubic
feet to determine the maximum Btu/Hr
the space can support.

_______________ (volume of space)

÷ 50 cu. ft. = (Maximum Btu/Hr  the
space can support)

Example:

  2560 cu. ft. (volume of

space) ÷ 50 cu. ft. = 51.2 or 51,200
(maximum Btu/Hr the space can sup-
port)

3.

Add the Btu/Hr of all fuel burning ap-
pliances in the space.

Vent-free heater __________ Btu/Hr

Gas water heater* ________ Btu/Hr

Gas furnace _____________ Btu/Hr

Vented gas heater _________ Btu/Hr

Gas fireplace logs ________ Btu/Hr

Other gas appliances* + ___ Btu/Hr

Total                            = ___ Btu/Hr

Example:

Gas water heater

40,000 Btu/Hr

Vent-free heater       + 20,000 Btu/Hr
Total                        = 60,000 Btu/Hr

* Do not include direct-vent gas appli-
ances. 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/Hr used.

__________ Btu/Hr (maximum the

space can support)

__________ Btu/Hr (actual amount of

Btu/Hr used)

Example:

  51,200 Btu/Hr (maximum

the space can support)60,000 Btu/Hr
(actual amount of Btu/Hr used)

The space in the above example is a con-
fined 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 unconfined space, remove
door to adjoining room or add ventila-
tion grills between rooms. See Ventila-
tion Air From Inside Building,
 page 6.

B. Vent room directly to the outdoors. See

Ventilation Air From Outdoors, page 6.

C. Install a lower Btu/Hr heater, if lower

Btu/Hr size makes room unconfined.

If the actual Btu/Hr used is less than the
maximum Btu/Hr the space can support, the
space is an unconfined space. You will need
no additional fresh air ventilation.

Continued

Summary of Contents for Comfort Glow CGN20TA

Page 1: ...ighbor s phone Follow the gas supplier s instructions Ifyoucannotreachyourgassupplier callthe fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING This is an unvented gas fired heater It uses air oxygen from the room in which it is installed Provisions for adequate combustion must be pro vided Refer to page 4 of this manual ...

Page 2: ...ons if you cannot reach your gas supplier call the fire department 3 This heater shall not be installed in a bedroom or bathroom 4 Never install the heater in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater as a fireplace insert in high traffic areas in windy or drafty areas 5 This heater needs fr...

Page 3: ... 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 PRODUCT FEATURES Safety Device This heater has a pilot with an Oxygen Depletion Sensor Shutoff System ODS TheODS pilotisarequiredfeatureforvent free room heaters The ODS pilot shuts off the heater if there i...

Page 4: ...a walls and ceilings exposed to the outside atmosphere have a con tinuous water vapor retarder with a rating of one perm 6x10 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 areas such as joints around window and door frames be tween sole plates and floors be tween wall ceil...

Page 5: ...________ Btu Hr Vented gas heater_________ Btu Hr Gas fireplace logs ________ Btu Hr Other gas appliances ___ Btu Hr Total ___ Btu Hr Example Gas water heater 40 000 Btu Hr Vent free heater 20 000 Btu Hr Total 60 000 Btu Hr Do not include direct vent gas appli ances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with ...

Page 6: ...e two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see op tion 3 Figure 2 Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts Figure 2 Ventilation Air from Inside Building WARNING Rework work sheet adding the space of the adjoining unconfined space The combined spac...

Page 7: ...n a recreational vehicle where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater as a fireplace insert in high traffic areas in windy or drafty areas CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl or cloth wall coverings or operating heate...

Page 8: ...olid walls concrete or ma sonry Decidewhichmethodbettersuitsyourneeds Eithermethodwillprovideasecureholdfor the mounting bracket Figure 5 Attaching Thermostat Sensing Bulb Clamp Thermostat Sensing Bulb Removing Front Panel Of Heater 1 Remove two screws near bottom cor ners of front panel 2 Liftstraightupongrillguarduntilitstops Grill guard will slide up about 1 4 3 Pull bottom of front panel forwa...

Page 9: ...4 un der Attaching To Wall Anchor Method column 1 If installing bottom mounting screw into wall stud drill holes at marked lo cations using 9 64 drill bit 5 Replace heater onto mounting bracket 6 Place spacers between bottom mount ing holes and wall anchor or drilled hole 7 Hold spacer in place with one hand With other hand insert mounting screw through bottom mounting hole and spacer Place tip of...

Page 10: ... must be upstream from heater see Figure 13 Installsedimenttrapinsupplylineasshown in Figure 13 Locate sediment trap where it is within reach for cleaning Locate sedi ment trap where trapped matter is not likely to freeze A sediment 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 properl...

Page 11: ... Equal To or Less Than 1 2 PSIG 1 Close manual shutoff valve see Fig ure 14 2 Pressurize supply piping system by ei ther using compressed air or opening main gas valve located on or near gas meter 3 Check all joints from gas meter to manual shutoff valve see Figure 15 Apply mixture of liquid soap and wa ter to gas joints Bubbles forming show a leak 4 Correct all leaks at once PRESSURE TESTING HEAT...

Page 12: ...f valve is fully open 3 Turn control knob clockwise Clockwise to the OFF position 4 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety in formation in column 1 If you don t smell gas go to the next step 5 Turn control knob counterclockwise C clockwise to the PILOT position Press in control knob for five 5 sec onds see F...

Page 13: ...TERN Figure 18 shows a correct pilot flame pat tern Figure 19 shows an incorrect pilot flame pattern The incorrect pilot flame is not touching the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down Thermocouple Pilot Burner Figure 18 Correct Pilot Flame Pattern Pilot Burner Thermocouple Figure 19 Incorrect Pilot Flame Pattern If pilot flame ...

Page 14: ... one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot 7 Thermocouple damaged 8 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 ignitor cable dry 5 Tighten nut holding piezo ignitor to heater cabinet Nut is located inside heater cabinet at top 6 Replace ignitor ca...

Page 15: ...und clean burner see Cleaning and Maintenance page 17 2 Replace gas regulator 1 Problem will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Operate burner until air is removed from line Have gas line checked by local natural gas company 3 Observe minimum installation clear ances see Figure 4 page 7 4 Clean burner see Cleaning and Mainte nance ...

Page 16: ...licking ticking noise just after burner is lit or shut off 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 This is common with most heaters If noise is excessive contact qualified ser vice person 1 Ventilate room Stop using odor caus ing products while he...

Page 17: ...th dampened with a mild soap and water mixture Wipe the cabi net to remove dust WARNING Turn off heater and let cool before cleaning CAUTION You must keep controlareas burner andcircu latingairpassagewaysofheater clean Inspect these areas of heater before each use Have heater inspected yearly by a qualified service person Heater may need more frequent clean ing due to excessive lint from carpeting...

Page 18: ...vice Center 1184 Wilson NW Walker MI 49504 616 791 4760 1 800 446 1446 Washer Equipment Co 1715 Main Street Kansas City MO 64108 KS MO AR 816 842 3911 East Coast Energy Products 833 Broadway W Long Branch NJ 07764 908 870 8809 1 800 755 8809 Tarantin Tank Co P O Box 6129 Freehold NJ 07728 908 780 9340 1 800 922 0724 Albany Ladder 1586 90 Central Avenue Albany NY 12205 NY MA VT 518 869 5335 1 800 3...

Page 19: ...ck page of this manual MANUAL SHUTOFF VALVE GA5010 Forallmodels Manualshutoffvalvewith1 8 NPT tap FLOOR MOUNTING STAND GA4500 Champagne For locating heater on the floor away from a wall Complete installation instructions included FAN KITS GA3100A AND GA3200TA For all models Provides better heat distri bution Makes heater more efficient Com plete installation and operating instructions included Man...

Page 20: ...20 104190 Blue Flame Vent Free Natural Gas Heater CGN20TA ILLUSTRATED PARTS BREAKDOWN CGN20TA 12 ODS Pilot Assembly 12 1 12 2 1 2 3 4 5 6 7 8 9 10 10 11 12 13 14 15 17 19 20 21 22 23 24 26 25 18 16 ...

Page 21: ...52 04BR Deflector Unit 1 10 098271 02 Ignitor Cable 1 11 098249 01 Nut M5 2 12 099440 05 ODS Pilot Assembly 1 12 1 098514 01 Thermocouple 1 12 2 098515 01 Ignitor Electrode 1 13 099120 02 Burner 1 14 098517 01 3 16 Pilot Tubing 1 15 098250 01 Injector Holder 1 16 098251 09 Injector 1 17 099415 07 Pressure Regulator 1 18 099553 01 Pilot Shield 1 19 103255 01 3 8 Outlet Burner Tubing 1 20 103256 01 ...

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Page 23: ...____________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________________________________________________________...

Page 24: ...d any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICUL...

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