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110398-01A

For more information, visit www.desatech.com

For more information, visit www.desatech.com

6

AIR FOR COMBUSTION
AND VENTILATION

Continued

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 ventilation grills between rooms. See Ventilation Air From
Inside Building
 below.

B.

Vent room directly to the outdoors. See Ventilation Air From Out-
doors
.

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.

 WARNING: If the area in which the heater may be

operated is smaller than that defined as an uncon-
fined space or if the building is of unusually tight
construction, provide adequate combustion and ven-
tilation 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.

VENTILATION AIR

Ventilation Air From Inside Building

This fresh air would come from an adjoining unconfined space.
When ventilating to an adjoining unconfined space, you must
provide two permanent openings: one within 12" of the ceiling and
one within 12" of the floor on the wall connecting the two spaces
(see options 1 and 2, Figure 2). You can also remove door into
adjoining room (see option 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 permanent openings: one within 12" of the ceiling and
one within 12" of the floor. 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 ventilation grills or ducts.

IMPORTANT:

 Do not provide openings for inlet or outlet air into

attic if attic has a thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.

Figure 3 - Ventilation Air from Outdoors

Figure 2 - Ventilation Air from Inside Building

Outlet
Air

Ventilated
Attic 

Outlet
Air

Inlet
Air

Inlet Air

Ventilated 

Crawl Space

To 

Crawl

Space

To Attic

Or

Remove

Door into
Adjoining

Room,
Option

3

Ventilation Grills 

Into Adjoining Room,

Option 2

Ventilation

Grills 

Into Adjoining 

Room,

Option 1

12"

12"

AIR FOR COMBUSTION AND VENTILATION

Determining Fresh-Air Flow For Heater Location (Cont.)
Ventilation

Содержание VYM27NR/PR

Страница 1: ...n consult a qualified installer service agency or the gas supplier WARNING Thisapplianceisforinstalla tiononlyinasolid fuelburningmasonry or UL127 factory built fireplace or in an approved ventless fi...

Страница 2: ...or service this fireplace Improper use of this fireplace can cause serious injury or death from burns fire explosions electrical shock and carbon monoxide poisoning WARNINGS DANGER Carbon monoxide po...

Страница 3: ...ons in Clean ing and Maintenance page 17 10 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these prod ucts may create a white powder res...

Страница 4: ...tiple openings You may also install this log heater in a standard firebox REMOTE CONTROL ACCESSORIES There are four optional remote controls that can be purchased separately for this log heater wall s...

Страница 5: ...nished with doors are considered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them AIR FOR COMBUSTION AND VENTI...

Страница 6: ...within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 Follow th...

Страница 7: ...to vinyl or cloth wall coveringsoroperatingheaterwhereimpurities such as but not limited to tobacco smoke aromatic candles cleaning fluids oil or kerosene lamps etc in the air exist may discolor wall...

Страница 8: ...with damper open noncombustible material above fire place opening is not needed Go to Installing Damper Clamp Accessory for Vented Operation page 10 Figure 5 Heat Resistant Material Slate Marble Tile...

Страница 9: ...ening Underside of Mantel Shelf Mantel Shelf 12 A 18 20 22 24 All minimum distances are in inches 2 1 2 6 8 10 Minimum Non Combustible Material 8 Min 12 15 18 All minimum distances are in inches 20 2...

Страница 10: ...HEATER BASE ASSEMBLY WARNING Ifinstallinginasunkenfireplace special care is needed You must raise the fireplace floor to allow access to heater control panel This will insure adequate air flow and gu...

Страница 11: ...commonly known as wellhead gas INSTALLATION Installing Heater Base Assembly Cont Connecting To Gas Supply A CSA design certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative...

Страница 12: ...cess Of 1 2 PSIG 3 5 kPa 1 Disconnect appliance with its appliance main gas valve con trol valve and equipment shutoff valve from gas supply pip ing system Pressures in excess of 1 2 psig will damage...

Страница 13: ...2 on grate to fit as illus trated in Figure 18 2 Place center insert log 3 as illustrated in Figure 19 3 Place top left log 4 and top right log 5 as illustrated in Figure 20 4 Make sure open areas of...

Страница 14: ...ntheventsbefore operating heater Youmustoperatethisheaterwithafireplacescreen in place Make sure fireplace screen is closed before running heater NOTICE Duringinitialoperationofnewheater burning logsw...

Страница 15: ...OFF position MANUAL LIGHTING PROCEDURE Note All remote control accessories must be purchased sepa rately see Accessories page 24 Follow instructions included with the remote control Thermostat Control...

Страница 16: ...Held Remote Control Unit Selections GHRCTA only Figure 25 Setting the Selector Switch Control Knob and Flame Adjustment Knob for Remote Operation Selector Switch in Remote Position Optional Remote Co...

Страница 17: ...nd using compressed air no greater than 30 PSI Your local computer store hardware store or home center may carry compressed air in a can You can use a vacuum cleaner in the blow position If using comp...

Страница 18: ...d 7 Control valve damaged REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 3 Tighten nut holding piezo ignitor to base panel of log set Nu...

Страница 19: ...o Air for Combustion and Venti lation requirements page 4 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...

Страница 20: ...disappear over time REMEDY 1 This is common with most heaters If noise is excessive contact qualified ser vice person 1 Open window and ventilate room Stop using odor causing products while heater is...

Страница 21: ...model and serial numbers of your heater ready You can also visit DESA International s technical services web site at www desatech com WIRING DIAGRAM Note For proper operation of optional accessories t...

Страница 22: ...T O N H I L O O F F P I L O T O N H I L O 1 3 1 1 1 5 1 4 1 2 9 3 2 13 12 15 14 18 17 12 12 16 21 12 19 6 8 7 4 11 12 20 10 9 23 22 ILLUSTRATED PARTS BREAKDOWN VYM27NR VYM27PR FVFM27NR FVFM27PR NOTE...

Страница 23: ...urner Clip 1 7 099056 16 099056 17 Burner Orifice Injector 1 8 104591 01 104591 01 Burner 1 9 100609 01 099387 13 Pilot Tube Regulator to Pilot 1 10 103781 01 103781 02 Gas Control Valve 1 11 104611 0...

Страница 24: ...Shown For all models The desired comfort setting can be selected on the wall thermostat and the log heater will automatically cycle from pilot to the heat setting selected WALL MOUNT ON OFF SWITCH GWM...

Страница 25: ...ted College Completed Graduate School 13 Age of Purchaser Under 20 20 29 30 39 40 49 50 59 60 or Over 14 Buyer s total annual household income Under 15 000 15 000 to 19 999 20 000 to 34 999 35 000 to...

Страница 26: ...110398 01A For more information visit www desatech com For more information visit www desatech com 26 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 Postage Required TM TAPE TAPE...

Страница 27: ...________________________________________________________ _______________________________________________________________________________________________ _______________________________________________...

Страница 28: ...be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of no...

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