Desa VF-24N-PDG, VF-24P-PDG, VF-18NPDG, VF-18N-BTB User Manual

0 (0)
UNVENTED (VENT-FREE) GAS LOG HEAT ER
OWNER’S OP ER A TION AND IN STAL LA TION MANUAL
For more information, visit www.desatech.com
VF-24N-PDG, VF-24P-PDG,
VF-18N-PDG, VF-18P-PDG
Design Dynamics Ventfree Mod els Also De sign-Cer ti fi ed As Vented Dec o ra tive Ap pli anc es
WARNING: If the information in this man u al is not followed exactly, a fi re or explosion may result caus ing prop er ty damage, per­ son al in ju ry, or loss of life.
fl ammable vapors and liq uids in the vicinity of this or any other ap pli ance.
WARNING: Improper in stal la tion, ad just ­ment, al tera tion, service, or main te nance can cause injury or prop er ty dam age. Re fer to this man u al for cor rect in stal la tion and op er a tion al pro ce dures. For as sis tance or ad di tional in for ma tion con sult a quali­fi ed in stall er, ser vice agen cy, or the gas sup plier.
VF-24N-BTB, VF-24P-BTB,
VF-18N-BTB, VF-18P-BTB
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your build ing.
• Immediately call your gas sup pli er from a neigh bor’s phone. Follow the gas sup­ pli er’s in struc tions.
• If you cannot reach y our gas sup plier , call the fi re de part ment.
— Installation and service must be per formed
by a qualifi ed installer, ser vice agen cy, or the gas supplier.
WARNING: This appliance is for in stal ­la tion only in a solid-fuel burning masonry or UL127 factory-built fi replace, or in an ap proved ventless fi rebox. It is design­cer ti fi ed for these installations in ac cor ­dance with ANSI Z21.11.2. Exception: Do not in stall this ap pli ance in a factory-built fi re place that in cludes instructions stat ing it has not been tested or should not be used with unvented gas logs.
W ARNING: This is an unvented gas-fi red heat er. It uses air (o x y gen) from the room in which it is installed. Pro vi sions for ad e quate com bus tion and ven ti la tion air must be pro vid ed. Refer to Air for Com bus tion and Ven ti la tion sec tion on page 4 of this manual.
This appliance may be installed in an aftermarket,* manufactured (mobile) home, where not pro hib it ed by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This ap pli ance is not convertible for use with other gases.
Warning: This product must be installed by a Licensed Plumber or Gas Fitter when installed within The Commonwealth of Massachusetts.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
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TABLE OF CONTENTS
2
SAFETY INFORMATION
TABLE OF CONTENTS
SAFETY INFORMATION..............................................................2
PRODUCT IDENTIFICATION.......................................................3
OPTIONAL REMOTE CONTROL ACCESSORIES......................4
LOCAL CODES............................................................................4
UNPACKING.................................................................................4
PRODUCT FEATURES................................................................4
AIR FOR COMBUSTION AND VENTILATION.............................4
INSTALLATION.............................................................................7
OPERATING HEATER................................................................14
INSPECTING BURNERS...........................................................17
CLEANING AND MAINTENANCE .............................................18
SAFETY INFORMATION
TROUBLESHOOTING................................................................19
SPECIFICATIONS......................................................................22
WIRING DIAGRAM ...................................................................23
SERVICE HINTS........................................................................23
TECHNICAL SERVICE...............................................................23
REPLACEMENT PARTS............................................................23
ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST.........25
ACCESSORIES..........................................................................27
WARRANTY INFORMATION ......................................Back Cover
WARNINGS
IMPORTANT: Read this owner’s manual carefully and completely be fore trying to assemble, op er ate, or ser­ vice this heater. Im prop er use of this heater can cause serious injury or death from burns, fi re, ex plo sion, elec­trical shock, and carbon monoxide poi son ing.
D ANGER: Carbon mono xide poisoning ma y lead
to death!
Carbon Monoxide Poisoning: Early signs of carbon monoxide
poi son ing re sem ble the fl u, with head aches, dizziness, or nausea. If you have these signs, the heater may not be work ing properly. Get fresh air at once! Have heater serviced. Some people are more af fect ed by carbon monoxide than others. These include pregnant women, peo ple with heart or lung disease or anemia, those under the in fl u ence of alcohol, and those at high altitudes.
Natural and Propane/LP Gas: Natural and propane/LP gases are
odor less. An odor-making agent is add ed to the gas. The odor helps you detect a gas leak. How ev er, 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 heater.
WARNING: Any change to this heater or its controls
can be dangerous.
WARNING: Do not use a blow er insert, heat ex­ chang er insert, or other accessory not ap proved for use with this heater.
WARNING: Do not allow fans to blow directly into the fi replace. Avoid any drafts that al ter burner fl ame patterns. Ceiling fans can create drafts that alter burner fl ame pat terns. Altered burner patterns can cause sooting.
Due to high temperatures, the appliance should be located out of traffi c and away from fur ni ture and drap er ies.
Do not place clothing or other fl ammable material on or near the appliance. Nev er place any objects on the heater.
Heater base assembly be comes very hot when run­ ning heater . Keep chil dren and adults away from hot surface to avoid burns or c lothing ignition. Heat er will remain hot for a time after shut down. Allow surface to cool be fore touching.
Carefully supervise young chil dren when they are in the room with heater. When using the hand-held remote accessory (Remote-Ready Models Only), keep se lec tor switch in the OFF position to prevent chil dren from turn ing on burners with remote.
You must operate this heat er with a fi re place screen in place. Make sure fi re place screen is closed bef ore run ning heater.
Keep the appliance area clear and free from com­ bus ti ble materials, gasoline, and other fl ammable vapors and liquids.
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111826-01
SAFETY INFORMATION
Continued
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. Lo cate propane/LP supply tank(s) outdoors (propane/LP units only).
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touch any elec tri cal switch; do not use any phone in
your build ing
• 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 fi re de part -
ment
4. This heater shall not be installed in a bed room or bathroom, unless installed as a vented appliance. See Installing Damp er Clamp Accessory for Vented Op er a tion, page 10.
5. Before installing in a solid fuel burn ing fi replace, the chim­ney fl ue and fi re box must be cleaned of soot, creosote, ashes and loose paint by a qualifi ed chimney cleaner. Creosote will ig nite if highly heat ed. Inspect chimney fl ue for damage. If damaged, repair fl ue damper before operating heater.
6. If fi replace has glass doors, never op er ate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside fi replace will cause glass to burst. Also if fi re place open ing has vents at the bottom, you must open the vents before op er at ing heater.
7. T o prevent the creation of soot, follo w the instructions in Clean- ing and Main te nance, page 18.
8. Before using furniture polish, wax, car pet cleaner, or similar products, turn heater off. If heated, the vapors from these prod­ ucts may create a white pow der residue within burner box or on adjacent walls and furniture.
9. This heater needs fresh, outside air ven ti la tion to run properly. This heater has an Oxygen Depletion Sensing (ODS) safe ty shutoff sys tem. The ODS shuts down the heat er if enough fresh air is not available. See Air for Com bus tion and Ven ti la tion, pages 4 through 6. If heat er keeps shut ting off, see Trou ble - shoot ing, pages 19 through 21.
10. Do not run heater
• where fl ammable liquids or vapors are used or stored
• under dusty conditions
11. Do not use this heater to cook food or burn paper or other ob­ jects.
12. Do not use heater if any part has been exposed to or under water . Im me di ate ly call a qualifi ed service technician to in spect the room heater and to replace any part of the control sys tem and any gas control which has been under wa ter.
13. Do not operate heater if any log is bro ken. Do not operate heat er if a log is chipped (dime-sized or larger).
SAFETY INFORMATION
PRODUCT IDENTIFICATION
3
3
14. Turn heater off and let cool before ser vic ing, installing, or re pair ing. Make sure the selector switch is in the OFF position (Remote-Ready Models Only). Only a qual i fi ed ser vice per son should install, ser vice, or repair heater.
15. Make sure the se lec tor switch is in the OFF po si tion when you are away from home for long periods of time (Remote-Ready Mod els Only).
16. Remote-Ready heaters do not to be connected to any ex ter nal elec tri cal source.
17. Operating heater abo ve elev ations of 4,500 feet may cause pi lot outage.
18. To pre vent performance problems, do not use propane/LP fuel tank of less than 100 lb. capacity (propane/LP units only).
19. Provide adequate clearances around air openings.
PRODUCT IDENTIFICATION
Log Set
Lava Rock
Piezo Ignitor
Log Set
Piezo Ignitor
Remote Control
Figure 1 - Product Identifi cation
Control Knobs
Chassis Assembly
Control Knobs
REMOTE CONTROLLED MODELS
REMOTE READY MODELS
Remote Reciever
Chassis Assembly
Log Scraps
Lava Rock
Log Scraps
111826-01
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OPTIONAL REMOTE CONTROL ACCESSORIES
4
LOCAL CODES UNPACKING PRODUCT FEATURES AIR FOR COMBUSTION AND VENTILATION
Providing Adequate V entilation
OPTIONAL REMOTE CONTROL ACCESSORIES
There are four optional remote controls that can be purchased separately for Remote-Ready Models Only:
• wall switch • hand-held ON/OFF remote
• wall thermostat • hand-held ther mo stat remote. See Accessories, page 27.
The wall thermostat or hand-held ther mo stat may not be used where vented dec o ra tive listing is required.
LOCAL CODES
Install and use heater 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 In sti tute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
Note: Where listed vented dec o ra tive logs are required, ther mo stat op er a tion is not permitted.
UNPACKING
CA UTION: Do not remove the data plates from the grate assembly. The data plates con tain im por tant warranty and safety in for ma tion.
1. Remove log set as sem bly from carton. Note: Do not pick up
assembly by logs. This could dam age the unit. Alw ays handle assembly by grate.
2. Remove control cover fl oor media components.
3. Remove all protective packaging ap plied to log set for ship­ment.
4. Check all items for any shipping dam age. If damaged, prompt ly inform deal er where you bought heater.
PRODUCT FEATURES
OPERATION
This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by both realistic fl ames and glowing coals. This heater is designed for vent-free op er a tion with fl ue damper closed. It has been tested and approved to ANSI Z21.11.2 stan dard for unvented heaters. State and local codes in some areas pro hib it the use of vent-free heaters. This heater may also be op er at ed as a vented decorative (ANSI Z21.60) product by opening the fl ue damper (Non-Thermostat Mod els Only).
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff sys tem. The ODS/pilot is a re quired fea ture for vent­free room heat ers. 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 sourc es to light heater.
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall not be installed in a confi ned space or unusually tight con struc tion un­ less pro vi sions are pro vid ed for ad e quate com bus tion and ven ti la tion air. Read the fol low ing in struc tions to in sure prop er fresh air for this and other fuel-burning ap pli anc es in your home.
Today’s homes are built more energy ef fi cient than ever. New ma te ri als, increased in su la tion, and new construction methods help reduce heat loss in homes. Home own ers 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 pos si ble.
While it is good to make your home energy effi cient, your home needs to breathe. Fresh air must enter your home. All fuel-b urning appliances need fresh air for proper com bus tion and ven ti la tion.
Exhaust fans, fi replaces, clothes dryers, and fuel burning appliances draw air from the house to operate. Y ou must provide ad e quate fresh air for these ap pli anc es. This will insure proper venting of vented fuel-burning appliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Sec tion 5.3, Air for Combustion and Ven ti ­la tion.
All spaces in homes fall into one of the three following ventilation classifi cations:
1. Unusually Tight Construction
2. Unconfi ned Space
3. Confi ned Space The information on pages 4 through 6 will help you classify your
space and provide ad e quate ven ti la tion.
Unusually Tight Construction
The air that leaks around doors and win dows may provide enough fresh air for combustion and ventilation. Howe ver, in buildings of un­usually tight construction, you must provide additional fresh air.
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111826-01
AIR FOR COMBUSTION AND VENTILATION
Providing Adequate V entilation (Cont.)
Determining Fresh-Air Flow for Heater Location
5
5
AIR FOR COMBUSTION AND VENTILATION
Continued
Unusually tight construction is de fi ned as construction where:
a. walls and ceilings exposed to the outside at mo sphere
have a con tin u ous water vapor retarder with a rating of one perm (6 x 10 open ings gasketed or sealed and
b. weather stripping has been add ed on openable win-
dows and doors and
c. caulking or sealants are applied to areas such as
joints around window and door frames, be tween sole plates and fl oors, be tween wall-ceiling joints, be tween wall panels, at pen e tra tions for plumb ing, electrical, and gas lines, and at other openings.
If your home meets all of the three criteria above, y ou
must pro vide ad di tion al fresh air . See Ventilation Air From Outdoors, page 6.
If your home does not meet all of the three criteria above, proceed to De ter min ing Fresh-Air Flow For Heater Lo- ca tion, below.
Confi ned and Unconfi ned Space
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defi nes a con fi ned space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the ag gre gate input rating of all ap pli anc es in stalled in that space and an un con fi ned space as a space whose vol ume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the ag gre gate input rating of all appli­ances in stalled in that space. Rooms com mu ni cat ing di rect ly with the space in which the ap pli anc es are in stalled*, through openings not fur nished with doors, are con sid ered a part of the unconfi ned space.
* Adjoining rooms are communicating only if there are doorless passageways or ven ti la tion grills between them.
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confi ned or Unconfi ned Space
Use this work sheet to determine if you have a confi ned or un con fi ned 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. (vol ume of space) Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceil ing
height) = 2560 cu. ft. (vol ume of space)
-11
kg per pa-sec-m2) or less with
If additional ventilation to adjoining room is supplied with grills or open-
ings, add the volume of these rooms to the total vol ume 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 = (Maximum Btu/Hr the space
can sup port)
Example: 2560 cu. ft. (volume of space) x 20 = 51,200 (max i mum
Btu/Hr the space can sup port)
3. Add the Btu/Hr of all fuel burning ap pli anc es in the space.
Vent-free heater _____________ Btu/Hr Gas wa ter heater* _____________ Btu/Hr Gas fur nace _____________ Btu/Hr Vented gas heater _____________ Btu/Hr Gas fi re place logs _____________ Btu/Hr Other gas appliances* + _____________ Btu/Hr Total = _____________ Btu/Hr * Do not include direct-vent gas ap pli anc es. Direct-vent draws com-
bus tion air from the outdoors and vents to the outdoors.
Example: Gas water heater _____________ Btu/Hr Vent-free heater + _____________ 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 sup port) ____________________Btu/Hr (actual amount of Btu/Hr used) Example: 51,200 Btu/Hr (max i mum the space can support) 73,000 Btu/Hr (actual amount of Btu/Hr used) The space in the above example is a con fi ned space because the actual
Btu/Hr used is more than the maximum Btu/Hr the space can sup port. You must provide additional fresh air. Your op tions are as follows:
A. Rework worksheet, adding the space of an adjoining room. If the ex tra
space provides an unconfi ned space, remov e door to ad join ing room or add ven ti la tion grills between rooms. See Ven ti la tion Air From Inside Building, page 6.
B. V ent room directly to the outdoors. See Ventilation Air Fr om Out doors,
page 6.
C. Install a lower Btu/Hr heater, if lower Btu/Hr size makes room un con -
fi ned.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can sup­ port, the space is an unconfi ned space. You will need no additional fresh air ven ti la tion.
40,000 33,000 73,000
WARNING: If the area in which the heater ma y be operated is smaller than that defi ned as an un con fi ned space or if the building is of unusually tight construc­tion, provide ad e quate com bus tion and ven ti la tion air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 Sec tion 5.3 or applicable local codes.
111826-01
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I
AIR FOR COMBUSTION AND VENTILATION
6
V entilation Air
AIR FOR COMBUSTION AND VENTILATION
Continued
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfi ned space. When ventilating to an adjoining unconfi ned space, you must pro vide two permanent open ings: one within 12" of the ceiling and one within 12" of the fl oor on the wall con nect ing the 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, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ventilation grills or ducts.
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills or ducts. You must provide two per ma nent open ings: one within 12" of the ceil­ing and one within 12" of the fl oor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation for required size of ven ti la tion grills or ducts.
IMPORTANT: Do not provide openings for inlet or outlet air into attic if attic has a ther mo stat-controlled power vent. Heated air entering the attic will activate the power vent.
12"
Ventilation
Grills
nto Adjoining
Room,
Option 1
Figure 2 - Ventilation Air from Inside Building
Outlet Air
Or
Remove Door into Adjoining
Room, Option
3
12"
Outlet Air
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilated Attic
To Attic
To
Crawl
Inlet Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
Ventilated
Crawl Space
Space
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111826-01
INSTALLATION
INSTALLATION
Check Gas Type
Installation and Clearances for Vent-Free Operation
7
7
NOTICE: This heater is in tend ed for use as sup ple ­men tal heat. Use this heater along with your pri ma ry heat ing system. Do not in stall this heat er as your pri­ ma ry heat source. If you have a central heating system, you may run sys tem’ s cir cu lat ing blower while us ing heater. This will help cir cu late the heat throughout the house. In the event of a pow er out age, you can use this heat er as your pri ma ry heat source.
WARNING: A qualifi ed ser vice per son must in stall
heater. Fol low all lo cal codes.
NOTICE: State or local codes may only allow op er a tion of this ap pli ance in a vented confi guration. Check your state or local codes.
W ARNING: Make sure the selector switch is in the
OFF po si tion before installing heater .
WARNING: Before installing in a solid fuel burn­ ing fi replace, the chimney fl ue and fi rebox must be cleaned of soot, creosote, ash es and loose paint by a qual i fi ed chim ney cleaner. Creosote will ignite if highly heated. A dirty chimney fl ue may create and dis trib ute soot within the house. In spect chim ney fl ue for damage. If damaged, repair fl ue damper before operating heater.
WARNING: Seal an y fresh air vents or ash c lean­out doors lo cat ed on fl oor or wall of fi replace. If not, drafting may cause pilot outage or sooting. Use a heat­resistant sealant. Do not seal chimney fl ue damp er.
WARNING: Never install the heater
• in a bedroom or bathroom un less installed as a
vented ap pli ance, see page 10
• in a recreational vehicle
• where curtains, furniture, cloth ing, or other fl am-
ma ble ob jects are less than 42 inches from the front, top, or sides of the heater
• in high traffi c areas
• in windy or drafty areas
CAUTION: This heater cre ates warm air currents.
These currents move heat to wall sur fac es next to heater. Installing heater next to vinyl or cloth wall cov­ er ings or operating heater where im pu ri ties (such as, but not limited to, to bac co smoke, ar o mat ic can dles, cleaning fl u ids, oil or kerosene lamps, etc.) in the air exist, may dis col or walls or cause odors.
IMPORTANT: Vent-free heaters add mois ture to the air. Although this is ben e fi cial, installing heater in rooms without enough ven ti ­la tion air may cause mildew to form from too much moisture. See Air for Com bus tion and Ventilation, pages 4 through 6.
CHECK GAS TYPE
Use the correct gas type (natural or pro pane/LP) for your unit. If your gas supply is not correct, do not install fi replace. Call dealer where you bought fi replace for prop er type fi re place.
INSTALLATION AND CLEARANCES FOR VENT-FREE OPERATION
WARNING: Maintain the min i mum clearances. If you can, pro vide greater clear anc es from fl oor, ceil­ ing, and adjoining wall.
MINIMUM FIREPLACE
CLEARANCE TO
COMBUSTIBLE MATERIALS
Log Size 18", 24" Side Wall 16" Ceiling 42" Floor 5"
LOG SIZING REQUIREMENTS
Minimum Firebox Size
Log Front Rear* Size Height Depth Width Width
18" 17" 14" 20" 15" 24" 17" 14" 26" 18"
111826-01
*Measured at 14" depth
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INSTALLATION
8
Installation and Clearances for Vent-Free Operation (Cont.)
INSTALLATION
Continued
Carefully follow the instructions below. This will ensure safe in­ stal la tion into a masonry, UL127-listed manufactured fi replace, or list ed vent-free fi re box.
Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling
A. Clearances from the side of the fi re place cabinet to any com-
bus ti ble ma te ri al and wall should follow di a gram in Figure 4.
Example: The face of a mantel, book shelf, etc. is made of
com bus ti ble ma te ri al and protrudes 3 1/2" from the wall. This com bus ti ble material must be 4" from the side of the fi replace cabinet (see Fig ure 4).
Note: When installing your gas logs into a manufactured fi re-
box, follow fi re box manufacturer’s instructions for min i mum clear anc es to combustible ma te ri als.
B. Clearances from the top of the fi re place opening to the ceiling
should not be less than 42 inches.
Example
*
*Minimum 16 inches from Side Wall
Figure 4 - Minimum Clearance for Combustible to Wall
NOTICE: Non thermostat controlled heaters maybe used as a vented product. If so, you must always run heater with chimney fl ue damper open. If running heater with damper open, noncombustible material above fi replace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operataion, page 10.
noncom bus ti ble ma te ri al behind it. Noncombustible ma te ri al must extend at least 8" up (for all mod els). If noncombustible ma te ri al is less than 12", you must install the fi re place hood accessory (24" and 30" Models Only). See Figure 5 for min i mum clear anc es.
If Using Mantel
You must have noncombustible material(s) above the fi replace opening. Noncom bus ti ble materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncom bus ti ble ma te ri al behind it. Noncombustible ma te ri al must extend at least 8 inches up (for all models). If noncombus­tible ma te ri al is less than 12", you must install the fi re place hood ac ces so ry (24" Models Only). Even if noncombustible material is more than 12", you may need the hood accessory to defl ect heat away from your mantel shelf. See Fig ure 5 and Figures 6 and 7, page 9, for min i mum clear anc es.
IMPORTANT: If you cannot meet these minimum clearances, you must operate heat er with chimney fl ue damper open. Go to In stall ing Damper Clamp Accessory for Vented Op er a tion, page 10.
Noncombustible Requirements for Material Distance (A) Safe Installation
12" or more Noncombustible material OK. Between 8" and 12" 24" Models: Install fi re place hood
accessory (GA6050, GA6052, or GA6053 see Ac ces so ries, page 36).
18" Model: Noncombustible mate-
rial OK.
Less than 8" Noncombustible material must be ex-
tended to at least 8". See Be tween 8" and 12", above. If you cannot extend material, you must operate heater with fl ue damper open.
Heat Resistant Material
(A)
Minimum Noncombustible Material Clearances
If Not Using Mantel
Note: If using a mantel proceed to If Using Mantel. If not using a mantel, follow the in for ma tion on this page.
Y ou must have noncombustible material(s) abov e the fi replace open­ ing. Noncom bus ti ble materials (such as slate, marble, tile, etc.) must be at least 1/2 inch thick. With sheet metal, you must have
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Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace
111826-01
INSTALLATION
Continued
MANTEL CLEARANCES
In addition to meeting noncom bus ti ble ma te ri al clearances, you must also meet required clearances between fi replace open ing and mantel shelf. If you do not meet the clear anc es listed below, you will need a hood.
Determining Minimum Mantel Clearance
If you meet min i mum clear ance be tween mantel shelf and top of fi re place open ing, a hood is not required (see Figure 6).
Determining Minimum Mantel Clearance When Using a Hood
If minimum clearances in Figure 6 are not met, you must have a hood. When using a hood there are still certain min i mum mantel clearances required. Fol low minimum clear anc es shown in Fig ure 7 when using hood.
Minimum Non-
Combustible
Material
10" 8" 6"
1
/2
"
2
(A)
12" 8"
Minimum Non­Combustible Material Height
18" 14"
INSTALLATION
Mantel Clearances
Floor Clearances
Mantel Shelf
20"
22"
17"
19"
Distances to Underside of Mantel
24" 20"
Underside of Mantel Shelf
All minimum distances are in inches
Log Set
24" Models 18" Model
Top of Fireplace Opening
9
9
NOTICE: Surface temperatures of ad ja cent walls and mantels be come hot dur ing operation. Walls and man­tels above the fi rebox may become hot to the touch. If installed properly, these tem per a tures meet the re­ quire ment of the national prod uct stan dard. Fol low all minimum clear anc es shown in this manual.
NOTICE: If your installation does not meet the min­ i mum clear anc es shown, you must do one of the fol low ing:
• operate the logs only with the fl ue damper open
• raise the mantel to an ac cept able height
• remove the mantel
FLOOR CLEARANCES
A. If installing appliance on the fl oor lev el, you must maintain the
min i mum dis tance of 14" to combustibles (see Fig ure 8).
B. If combustible materials are less than 14" to the fi replace, you
must install ap pli ance at least 5" above the com bus ti ble fl oor ing (see Figure 9).
Figure 6 - Minimum Mantel Clearances Without Using Hood
Mantel Shelf
"
8" Min.
12" 15"
Distances to Underside of Mantel
18"
Underside of Mantel Shelf
20"
Top of Fireplace Opening
All minimum distances are in inches
Log Set
18"-24" Models
Minimum Non­Combustible Material
12" 10"
8" 6"
1
/2
2
Hood (GA6050,GA6052, or GA6052)
Figure 7 - Minimum Mantel Clearances When Using Hood
Combustible
14" Min.
Material
Non-Combustible Material
Hearth
5" Min.
Combustible Material
111826-01
Figure 8 - Minimum Fireplace Clearances If Installed at Floor Level
For more information, visit www.desatech.com
Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring
INSTALLATION
10
Installing Damper Clamp Accessory for Vented Operation Installing Heater Assembly
INSTALLATION
Continued
INSTALLING HEATER ASSEMBLY
INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERA TION
Note: When used as a vented decorati ve, ap pli ance must be installed only in a solid-fuel burning fi replace with a working fl ue and con­structed of noncombustible material.
If your heater is a non-thermostatically-controlled mod el, you may use this heater as a vented prod uct. There are three reasons for op er ­at ing your heater in the vented mode.
1. The fi replace does not meet the clear ance to com bus ti bles re quire ments for vent-free operation.
2. State or local codes do not permit vent-free operation.
3. You prefer vented operation.
If reasons number 1 or 2 above apply to you, you must permanently open chim ney fl ue damper. You must install the damper clamp ac­cessory (to order, see Accessories, page 27). This will insure vented op er a tion (see Figure 10). The damper clamp will keep damper open. Installation instructions are included with clamp accessory.
See chart below for minimum permanent fl ue opening you must provide. Attach damp er clamp so the minimum permanent fl ue opening will be main tained at all times.
Area of Various Standard
Round Flues
Diameter (ins.) Area (sq. ins.)
5" 20 sq. inches 6" 29 sq. inches 7" 39 sq. inches 8" 51 sq. inches
WARNING: If installing in a sunken fi re place, special care is needed. You must raise the fi re place fl oor to allow access to heat er control panel. This will in sure ad e quate air fl ow and guard against soot ing. Raise fi replace fl oor with noncom bus ti ble ma te ri al. Make sure material is secure.
CAUTION: Do not pick up heat er as sem bly by logs. This could damage unit. Only handle assembly by grates.
IMPORTANT: Make sure the heater burn ers are level. If heater is not level, heater will not work properly.
Installation Items Needed
• control cover kit (provided with heater)
• approved fl exible gas hose and fi ttings (pro vid ed with heater) (if al lowed by lo cal codes)
• sealant (resistant to propane/LP gas, not pro vid ed)
Note: Install optional GHRCTA Receiver and Hand-Held Remote Control Kit (see Ac ces so ries, page 27) before in stall ing gas log heater (Remote-Ready Models Only). See installation in struc tions in clud ed with the kit.
1. Apply pipe joint sealant lightly to male threads of gas fi tting
(not provided). Connect ap proved fl exible gas hose to inlet side of gas con trol (see Figure 11).
2. Position heater assembly in fi re place.
3. Connect to gas supply. See Con nect ing To Gas Supply, (see
Figure 12, page 11).
Chimney Minimum Permanent Height (ft.) Flue Opening (sq. ins.)
6' to 15' 39 sq. inches 15' to 30' 29 sq. inches
Damper Clamp
Damper
Masonry Fire place
Figure 10 - Attaching Damper Clamp
Manufactured Fire place
Damper
Flexible Gas Hose (if allowed
Damper Clamp
Damper
Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator
by local codes)
For more information, visit www.desatech.com
Gas Control
111826-01
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