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For more information, visit www.desatech.com

 

WARNING: If the information in this manual is not 

followed exactly, a fire or explosion may result causing 
property damage, personal injury, or loss of life.

—  Do  not  store  or  use  gasoline  or  other   flammable 

vapors and liquids in the  vicinity of this or any other 

appliance.

—  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 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.

—  Installation and service must be performed by a quali

-

fied installer, service agency, or the gas supplier.

INSTALLER:  Leave  this  manual  with  the  appliance.

 

CONSUMER: Retain this manual for future reference.

UNVENTED (VENT-FREE) GAS

COMPACT CLASSIC HEARTH

® 

FIREPLACE

OWNER’S OPERATION AND INSTALLATION MANUAL

REMOTE-READy MODELS

VMH26PRB AND VMH26NRB

Shown with 

optional cabinet 

mantel/hearth 

base accessory

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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