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113110-01H

28

CLEANING AND MAINTENANCE

 WARNING: Turn off fireplace 

and let cool before cleaning.

  CAUTION:  You  must  keep 

control  areas,  burner,  and  cir

-

culating  air  passageways  of 

fireplace  clean.  Inspect  these 

areas  of  fireplace  before  each 

use.  Have  fireplace  inspected 

yearly  by  a  qualified  service 

person.  Fireplace  may  need 

more frequent cleaning due to 

excessive  lint  from  carpeting, 

pet hair, bedding material, etc.

  WARNING:  Failure  to  keep 

the  primary  air  opening(s)  of 

the burner(s) clean may result in 

sooting and property damage.

BURNER INjECTOR HOLDER AND 

PILOT AIR INLET HOLE

The  primary  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 in

-

let holes prior to each heating season. Blocked 

air holes will create soot. We recommend that 

you clean the unit every three months during 

operation and have fireplace inspected yearly 
by a qualified service person.

We also recommend that you keep the burner 
tube and pilot assembly clean and free of dust 

and dirt. To clean these parts we recommend 

using compressed air no greater than 30 PSI. 

Your local computer store, hardware store, or 

home center may carry compressed air in a 

can. If using compressed air in a can, please 
follow 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 burner, pilot, and primary air inlet 

holes on injector holder for dust and dirt 

(see Figure 47).

3.  Blow air through ports/slots and holes in 

burner.

4.  Check  injector  holder  located  at  end  of 

burner  tube  again.  Remove  any  large 

particles of dust, dirt, lint, or pet hair with 
a soft cloth or vacuum cleaner nozzle.

5.  Blow air into primary air holes on injector 

holder.

6.  In case any large clumps of dust have now 

been pushed into burner repeat steps 3 
and 4.

Clean pilot assembly also. A yellow tip on pilot 
flame indicates dust and dirt in pilot assembly. 
There is a small pilot air inlet hole about 2" from 
where pilot flame comes out of pilot assembly 

(see Figures 48 or 49 depending on model). 

With unit off, lightly blow air through air inlet 
hole. You may blow through a drinking straw 

if compressed air is not available.

Figure 47 - Injector Holder On Outlet 

Burner Tube

Burner Tube

Injector 

Holder

Primary Air 
Inlet Holes

Ports/Slots

Figure 48 - Pilot Inlet Air Hole

(Propane/LP Gas)

Pilot Assembly

Pilot Air Inlet Hole

Pilot Air 
Inlet Hole

Figure 49 - Pilot Inlet Air Hole

(Natural Gas)

Pilot Assembly

Summary of Contents for Unvented (Vent-Free) Gas Compact Classic Hearth Fireplace VMH26NRB

Page 1: ...al switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire departmen...

Page 2: ...s 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 not for purpose of resale from...

Page 3: ...the OFF position to prevent children from turning on burners with remote You must operate this fireplace withthefireplacescreeninplace Make sure fireplace screen is closed before running fireplace Ke...

Page 4: ...that can be purchased separately wall switch hand held ON OFF remote wall thermostat hand held thermostat remote See Accessories page 35 Local Codes Install and use fireplace with care Follow all loca...

Page 5: ...udes one hardware packet Assembly Local Codes Continued 4 Check fireplace for any shipping dam age If heater is damaged call DESA Heating LLC at 1 866 672 6040 for replacement parts before returning t...

Page 6: ...from the house to operate You must provide adequate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are e...

Page 7: ...th x Width x Height __________cu ft volume of space Example Space size 16 ft length x 14 ft width x 8 ft ceiling height 1792 cu ft volume of space AIR FOR COMBUSTION AND VENTILATION Continued If addit...

Page 8: ...adjoining room see option 3 Figure 4 Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Air for Combustion and Ventilation for required size of ventilation grills or ducts AIR FOR COMBUSTION AND V...

Page 9: ...clearance installations Wall or framing ma terial can be placed directly against any exterior surfaceontherear sides ortopofyourfireplace except where standoff spacers are integrally at tached If stan...

Page 10: ...in Figure 6 Example The face of a mantel bookshelf etc is made of combustible material and protrudes 3 1 2 from the wall This com bustible material must be 4 from the side of the fireplace opening se...

Page 11: ...lve The flexible gas line must be the last item installed on the gas piping Nails or Wood Screws Nailing Flanges Figure 9 Attaching Fireplace to Wall Studs Wall Studs 4 If you have not assembled fireb...

Page 12: ...ollowing raise the mantel to an accept able height remove the mantel Figure 10 Minimum Mantel Clearances for Built In Installation OPTIONAL MANTEL Installation Refer to instructions provided with the...

Page 13: ...shoulder screws Align fireplace in mantel assembly so the trim overlaps mantel evenly on all three sides 12 Lower bottom louver door Use 3 wood screws provided with mantel accessory to attach fireplac...

Page 14: ...oles in the rear of the valve cover shieldandthroughtherectangularholeinthe front of shield see Figure 16 page 15 8 Reconnect red wire to switch position 3 Reconnect blue wire to switch position 1 Rec...

Page 15: ...tch Plate Blue Red Valve Cover Shield Snap Bushing Black Blower Mounting Holes Lower Louver Door Power Cord Figure 17 Wiring Diagram For Blower Accessory Standard Installation Red Red Fan Switch Auto...

Page 16: ...t In Installation WARNING A licensed elec trician must connect the wiring harness to electrical supply followingalllocalcodes Electri cianmustprovideaclamponthe box cover to secure the wiring Wiringsh...

Page 17: ...f you do not reduce incoming gas pressure fireplace regulator damage could occur Install external regula tor with the vent pointing down as shown in Figure 21 Pointing the vent down protects it from f...

Page 18: ...te sediment trap where it is within reach for cleaning Install in piping system between fuel supply and heater Locate sediment trap where trapped matter is not likely to freeze Asediment trap traps mo...

Page 19: ...flame to check for a leak Apply a noncorrosive leak detection fluid toalljoints Bubblesformingshow a leak Correct all leaks at once CAUTION Make sure exter nal regulator has been installed betweenprop...

Page 20: ...e Figure 28 Discard switch plate after removing Save the screws 4 Locate battery clip mounted on back of receiver see Figure 29 5 Slide 9 volt battery not included through the clip 6 Attach terminal w...

Page 21: ...side of base see Figure 33 WARNING Do not con nect the thermostat to a power source Electrical shock and or a fire hazard will occur 6 Connect one bare wire end to each terminal W and R of the thermos...

Page 22: ...see Figure 32 page 21 2 Connect remaining wire terminal to TH terminal on control valve Make sure that wire terminals are in the positions on your unit as pictured in Figure 32 page 21 If wires are n...

Page 23: ...this fireplace with the fireplace screen in place Make sure fire place screen is installed before running fireplace Figure 36 Control Knob and Ignitor Button Location Shown as Supplied No Control Opt...

Page 24: ...e the selector switch is in the OFF positionwhenyouareawayfrom home for long periods of time Fireplacewillcomeonautomati cally with selector switch in the ON position TO TURN OFF GAS TO APPLIANCE Shut...

Page 25: ...rol 2 Press MANU button to turn on fireplace 3 Press POWER and LOCK buttons to gether to turn off fireplace Auto Thermostatic Mode 1 Press POWER and LOCK buttons together to turn on hand held remote c...

Page 26: ...red setting Thermostat has been electronically calibrated at the factory and requires no adjustment or leveling Upon installation thermostat must be allowed to stabilize at room temperature for a mini...

Page 27: ...liance page 24 see Troubleshooting page 30 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color BURNER FLAME PATTERN Figure 45...

Page 28: ...re hardware store or home center may carry compressed air in a can If using compressed air in a can please follow the directions on the can If you don t follow directions on the can you could dam age...

Page 29: ...remove one piece log set for clean ing refer to Installing Log Set and Screen page 22 for placement instructions Replace log set if broken or chipped dime sized or larger CABINET Air Passageways Use...

Page 30: ...in PILOT position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Reconnect ignitor cable 2 Free ignit...

Page 31: ...trol knob pressed in 30 seconds 3 Wait one minute for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shut off valve 5 A Contact local natural or propane LP gas compa...

Page 32: ...ne checked by local natural gas company 3 Observe minimum instal lation clearances see page 10 4 Clean burner see Cleaning and Maintenance page 28 or replace burner orifice 1 Turn fireplace off when u...

Page 33: ...each your gas supplier call the fire department IMPORTANT Operating fireplace where impurities in air exist may create odors Cleaning supplies paint paint remover cigarette smoke cements and glues new...

Page 34: ...t s call DESA Heating LLC at 1 866 672 6040 When calling DESA Heating LLC have ready your name your address model and serial numbers of your heater how heater was malfunctioning purchase date Usually...

Page 35: ...Unfinished Traditional Design W26TO Oak Finished Traditional Design W26GO Oak Finished Georgian Design Mantel features clean classic lines Available in a stained oak or unfinished hardwood ready to s...

Page 36: ...atech com 113110 01H 36 Parts MODELS VMH26PRB and VMH26NRB 39 37 38 4 22 40 32 11 28 30 12 7 35 25 10 9 7 23 1 2 20 20 8 14 8 24 33 34 13 41 21 26 18 15 27 20 3 20 29 16 18 3 17 42 36 6 4 20 19 31 31...

Page 37: ...01 Injector 1 20 M11084 26 Screw Hex Head 10 x 3 8 25 21 098249 01 Nut M5 6 22 103781 01 Gas Valve 1 103781 02 Gas Valve 1 23 102639 01 Baffle 1 24 101628 01 Flexible Connector 1 25 104305 01 Control...

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Page 40: ...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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