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121353-01F

4

SAFETY

Continued

12. This heater needs fresh, outside air ven

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tilation to run properly. This heater has an 
oxygen depletion sensing (ODS) pilot light 

safety system. The ODS shuts down the 

heater if not enough fresh air is available. 
See 

Air for Combustion and Ventilation

page 6. If heater keeps shutting off, see 

Troubleshooting

, page 24.

13. Do not run heater

• where flammable liquids or vapors are 

used or stored

• under dusty conditions

14. Do not use this heater to cook food or burn 

paper or other objects.

15. Do not use heater if any part has been ex-

posed to or under water. Immediately call 
a qualified service technician to inspect 

the room heater and to replace any part 
of the control system and any gas control 

which has been under water.

16. Do not operate heater if any log is broken. 

Do not operate heater if a log is chipped 

(dime-sized or larger).

17. Turn heater off and let cool before servic-

ing, installing, or repairing. Make sure the 
selector switch is in the OFF position. Only 
a qualified service person should install, 
service, or repair heater.

18. Make  sure  the  selector  switch  is  in  the 

OFF  position  when  you  are  away  from 

home for long periods of time.

19. This heater must not be connected to any 

external electrical source.

20. Operating  heater  above  elevations  of 

4,500 feet could cause pilot outage.

21. Provide adequate clearances around air 

openings.

22. Keep  burner  and  control  compartment 

clean.

23. Solid fuels shall not be burned in a fire

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place in which an unvented room heater 

is installed.

4.  If you smell gas

• shut off gas supply
• do not try to light any appliance
• do not touch any electrical 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  supplier, 

call the fire department

5.  This  heater  shall  not  be  installed  in  a 

bedroom or bathroom unless installed as 
a vented appliance (see 

Installing Damper 

Clamp Accessory for Vented Operation

page  11).  This  gas  log  set  may  not  be 
installed as a vented appliance in a bed-

room or bathroom in the Commonwealth 

of Massachusetts.

6.  Before installing in a solid fuel burning fire

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place, the chimney flue and firebox must 
be cleaned of soot, creosote, ashes and 
loose paint by a qualified chimney cleaner. 
Creosote will ignite if highly heated. A dirty 
chimney  flue  may  create  and  distribute 
soot  within  the  house.  Inspect  chimney 
flue for damage. If damaged, repair flue 
and firebox before operating heater.

7.  Do  not  burn  solid-fuel  in  a  masonry  or 

UL127  factory-built  fireplace  in  which  a 

vent-free room heater is installed.

8.  If fireplace has glass doors, never operate 

this heater with glass doors closed. If you 
operate  heater  with  doors  closed,  heat 
buildup inside fireplace will cause glass to 

burst. Make sure there are no obstructions 

across openings of fireplace.

9.  This log heater is designed to be smoke-

less. If logs ever appear to smoke, turn off 
heater and call a qualified service person. 

Note:

 During initial operation, slight smok

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ing  could  occur  due  to  log  curing  and 
heater burning manufacturing residues.

10. To prevent the creation of soot, follow the 

instructions in 

Cleaning and Maintenance,

 

page 23.

11. 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 residue 
within burner box or on adjacent walls or 

furniture.

Summary of Contents for FLAME-MAX VYM27NR

Page 1: ...you cannot reach your gas supplier call the fire department Installation and service must be performed by a quali fied installer service agency or the gas supplier UNVENTED VENT FREE GAS LOG HEATER O...

Page 2: ...t prohib ited by local codes 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 Aftermarket Completion of sale...

Page 3: ...g fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting Due to high temperatures the appliance should be located out oftrafficandawayfromfurniture and drape...

Page 4: ...touch any electrical 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 supplie...

Page 5: ...Application These multisided logs are designed to be equally beautiful when viewed from any angle They are designed specifically for use in see through peninsula and island fireboxes with multiple op...

Page 6: ...sidered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them There are 4 optional controls that can be pur chased...

Page 7: ...pace can support _______ Btu Hr actual amount of Btu Hr used 40 000 33 000 73 000 Example 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu Hr used The space in this examp...

Page 8: ...attic will activate the power vent NOTICE Thisheater isintended for use as supplemental heat Use this heater along with your primary heating system Do not install this heater as your pri mary heat so...

Page 9: ...tural gas or propane LP gas but not both Gas type is indicated on the rat ingplate Fieldconversionisnot permitted INSTALLATION Continued INSTALLATION AND CLEARANCES Vent Free Operation Only WARNING Ma...

Page 10: ...for minimum clearances IMPORTANT If you cannot meet these mini mum clearances you must operate heater with chimney flue damper open Go to Install ing Damper Clamp Accessory for Vented Operation page 1...

Page 11: ...op of Fireplace Opening Underside of Mantel Shelf Mantel Shelf 12 A 18 20 22 24 All minimum distances are in inches 2 1 2 6 8 10 Figure 7 Minimum Mantel Clearances When Using Hood Minimum Noncombustib...

Page 12: ...nce on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 abov...

Page 13: ...ble material Make sure material is secure CAUTION Do not pick up heater base assembly by the burner This could damage heater Only handle base as sembly by grates IMPORTANT Make sure the heater burner...

Page 14: ...pplied Install the exter nalregulatorbetweentheheater and propane LP supply Figure 13 External Regulator With Vent Pointing Down Propane LP gas only Propane LP Supply Tank External Regulator with Vent...

Page 15: ...uipment Shutoff Valve With 1 8 NPT Tap Approved Flexible Gas Hose if allowed by local codes Pipe Tee Nipple Cap Joint Sediment Trap Natural Gas From Gas Meter 5 W C to 10 5 W C Pressure Propane LP Gas...

Page 16: ...iance main gas valve control valve and equip ment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pipe where equip me...

Page 17: ...ylog If so reposition logs according to the log installation instructions in this manual Flames contact ing logs will create soot It is very important to install the logs exactly as instructed Do not...

Page 18: ...whentheselectorswitch is in the ON position after the pilot is lit 4 Press in and turn control knob clockwise to the OFF position FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low the...

Page 19: ...release control knob If control knob does not pop out when released contact a qualified service person or gas supplier for repairs Note If pilot goes out repeat steps 4 through 8 9 Slightly push in an...

Page 20: ...ctor switch to the REMOTE position see Figure 25 Note The burner may light if hand held re mote was on when selector switch was last turned off You can now turn the burner on and off with the hand hel...

Page 21: ...held remote in the AUTO mode close to the fireplace The radiant heat from the fireplace will turn off the fireplace Ideally place the hand held remote in the center of the room facing towards the fir...

Page 22: ...rn off heater and let cool Remove blockage blocked burner flame holes will create soot Burner FLAME PATTERN Figure 30 shows a correct burner flame pat tern Figure 31 shows an incorrect burner flame pa...

Page 23: ...ollow the directions on the can If you don t follow directions on the can you could dam age the pilot assembly 1 Shut off unit including pilot Allow unit to cool for at least thirty minutes 2 Inspect...

Page 24: ...OT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP gas 6 ODS pilot is clogged 7 Gas regulator setting is not correct...

Page 25: ...position 1 Manifold pressure is too low 2 Burner orifice clogged 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective REMEDY 1 Press in control knob fully 2 After ODS pilo...

Page 26: ...et cleaners etc may turn into white powder residue 1 Battery is not installed Bat tery power is low 1 Metal expanding while heating or contracting while cooling REMEDY 1 Check burner for dirt and debr...

Page 27: ...ee Checking Gas Con nections page 15 1 Open window and or door for ventilation 2 Contact local natural or propane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 23 1 Locate and cor...

Page 28: ...ter how heater was malfunctioning purchase date Usually we will ask you to return the part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply origi...

Page 29: ...OL KIT HRC200 Allows the fireplace to be operated in a manu ally or thermostatically controlled mode You can turn the fireplace on and off without ever leaving the comfort of your easy chair A wall mo...

Page 30: ...w desatech com 121353 01F 30 Parts Models VYM27NR and VYM27PR 5 1a 1b 1c 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 Note Part numbers 22 and 23 are for natural gas model onl...

Page 31: ...ator to Pilot 1 099387 13 Pilot Tube Regulator to Pilot 1 10 103781 01 Gas Control Valve 1 103781 02 Gas Control Valve 1 11 104611 01 Lower Bracket 1 12 098304 01 Screw 8 x 0 38 7 13 Painted Base Asse...

Page 32: ...proved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use origin...

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