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www.desatech.com

111115-01F

19

oPERAting HEAtER

FOR YOUR SAFETY 

READ BEFORE LIGHTING

 WARNING: If you do not fol-

low  these  instructions  exactly, 

a  fire  or  explosion  may  result 

causing property damage, per

-

sonal injury or loss of life.

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 supplier, 

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 tech

-

nician 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 control which 

has been under water.

LIGHTING 

INSTRUCTIONS

 WARNING:

•  If  fireplace  has  glass  doors, 

never operate this heater with 

glass doors closed. If you op

-

erate heater with doors closed, 

heat  buildup  inside  fireplace 

will cause glass to burst. Make 

sure there are no obstructions 

across openings of fireplace.

•  You must operate this heater 

with  a  fireplace  screen  in 

place.  Make  sure  fireplace 

screen  is  closed  before  run

-

ning heater. 

NOTICE: During initial operation 

of new heater, burning logs will 

give off a paper-burning smell. 

Orange flame will also be pres

-

ent. Open damper or window to 

vent smell. This will only last a 

few hours. 

Note:

 Home owners generally prefer to op-

erate their heater with the chimney damper 

closed. This will put all the heat into the room. 

However, there may be times you will desire 

the full flames of the HI heat setting but will 

find the heat output excessive. You can open 

the chimney damper (if you have one) fully or 

partially to release some of the heat.

  WARNING:  Damper  handle 

will  be  hot  if  heater  has  been 

running.

 WARNING: Burner will come 

on automatically within one min-

ute when control valve is in the 

ON position after pilot is lit.

1.  STOP! Read the safety information col-

umn 1.

2.  Make  sure  equipment  shutoff  valve  is 

fully open.

Summary of Contents for FLAME-MAX VML27NR

Page 1: ...e any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and...

Page 2: ...RNING This appliance is for installation only in a solid fuel burning mason ry or UL127 factory built fireplace or in a listed vent less firebox enclosure It is design certified for these installation...

Page 3: ...eep 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 blower insert heat ex...

Page 4: ...heated the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture safety information Continued 11 Thisheaterneedsfresh outsideairventilationto...

Page 5: ...no outside venting There is no heat loss out a vent or up a chimney Heat is generated by realistic dancing yellow flames This heater is designed for vent free operation with flue damper closed It has...

Page 6: ...Includes the room in which you will install heater plus any adjoining rooms with doorless pas sageways or ventilation grills between the rooms 1 Determine the volume of the space length x width x hei...

Page 7: ...Your options are as follows A Rework worksheet adding the space of an adjoin ingroom Iftheextraspaceprovidesanunconfined space remove door to adjoining room or add ventilation grills between rooms Se...

Page 8: ...oor or wall of fire place If not drafting may cause pilot outage or sooting Use a heat resistant sealant Do not seal chimney flue damper WARNING Never install the heater in a bedroom or bathroom un le...

Page 9: ...REMENTS Log Minimum Firebox Size Height Depth Width 27 17 19 32 MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall Ceiling 27 16 42 Carefully follow the instructions below This wi...

Page 10: ...may need the hood accessory to deflect heat away from your mantel shelf See Figure 5 and 6 and Figure 7 page 9 for minimum clearances IMPORTANT If you cannot meet these minimum clearances you must ope...

Page 11: ...become hot to the touch If installed properly these tem peratures meet the requirement ofthenationalproductstandard Follow all minimum clearances shown in this manual INSTALLATION Continued NOTICE Ify...

Page 12: ...er Damper INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note When used as a vented heater appliance must be installed only in a solid fuel burning fireplace with a working flue and constructe...

Page 13: ...ill not work properly Installation Items Needed hardware package provided with heater approved flexible gas hose not provided if allowed by local codes sealant resistant to propane LP gas not pro vide...

Page 14: ...lips Bracket Battery Clip 9 Volt Battery Terminal Wires Pad Installing Batteries for Remote Receiver and Hand Held Remote Control Two 9 volt alkaline batteries not included are required to operate thi...

Page 15: ...n Continued For propane LP units the installer must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 of...

Page 16: ...r Connecting to Gas Supply page 14 pressure testing gas supply piping system Test Pressures In Excess Of 1 2 PSIG 3 5 kPa 1 Disconnect appliance with its appliance main gas valve control valve and equ...

Page 17: ...es forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater page 19 Check all other internal joints for leaks 7 Turn off heater see To Turn Off Gas to Appli ance page 20 INS...

Page 18: ...f base log see Figure 26 6 Place lava rock around base of heater Installation Continued O F F P I L O T O N H I L O O F F P I L O T O N H I L O Figure 22 Installing Bottom Log 1 Bottom Log 1 Burner Gr...

Page 19: ...ualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water lighting instructions WARNING If fireplace has glass d...

Page 20: ...pilot with match see Manual Lighting Procedure on page 21 8 Keep control knob pressed in for30 seconds after lighting pilot After 30 seconds release control knob If control knob does not pop out when...

Page 21: ...ute TurncontrolknobtoONposition Adjust flameadjustmentknobanywherebetweenHIand LO Slide the selector switch to the REMOTE position see Figure 30 Note The burner may light if hand held remote was on wh...

Page 22: ...tigrade the hand held remote control will perform a safetyoverrideandshutthefireplaceoff This feature is not available in the MANU mode 2 The receiver continuously receives signals from the hand held...

Page 23: ...air inlet holes allow the proper amount of air to mix with the gas This provides a clean burning flame Keep these holes clear of dust dirt lint and pet hair Clean these air inlet holes prior to each...

Page 24: ...Warranty Contact authorized dealers of this product If they can t supply original replacement part s call DESA Heating Products Technical Service Department at 1 866 672 6040 When calling DESA Heatin...

Page 25: ...in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct OBSERVED PROBLEM When ignitor button is pressed there is no spark at ODS pilot When igni...

Page 26: ...tter and receiver 1 Contact local natural or pro pane LP gas company 2 Clean burner see Cleaning and Maintenance page 23 or replace burner orifice 1 Clean burner see Cleaning and Maintenance page 23 o...

Page 27: ...n into white powder residue 1 Battery is not installed Bat tery power is low 1 Metal expanding while heat ing or contracting while cooling REMEDY 1 Check burner for dirt and debris If found clean burn...

Page 28: ...statement at top of page 1 Not enough fresh air is avail able 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warning statement at top of page 2 Control valve or gas control defec...

Page 29: ...tting 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 GWMS2 Not Shown For all Remote Ready Models Al...

Page 30: ...rated Parts Breakdown Models VML27PR and VML27NR 1 2 27 5 3 4 23 18 17 5 6 12 11 7 7 20 8 8 7 7 13 14 15 19 27 1 27 3 27 4 7 26 27 2 7 16 7 8 8 25 8 9 9 21 22 10 NG Only 24 NG Only O F F P I L O T O N...

Page 31: ...1 Piezo Ignitor 1 14 102334 01 Palnut Fastener 1 15 111022 01 Rear Burner Bracket 1 16 110792 01FB Rear Flat Burner Bracket 1 17 098249 01 ODS Nut 2 18 103778 01 ODS Pilot 1 19 110793 01 Piezo Bracket...

Page 32: ...e 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 nor...

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