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113110-01H

18

INSTALLATION

Continued

* Purchase the optional CSA design-certified 

equipment shutoff valve from your dealer. 

Figure 22 - Gas Connection

CSA Design-Certified 

Equipment Shutoff Valve 

With 1/8" NPT Tap*

3" Minimum

Approved 

Flexible Gas 

Line

Pipe Nipple   Cap   Tee Joint

Propane/LP

From External 

Regulator (11" 

W.C.** to 14" W.C. 

Pressure)

NATURAL

From Gas Meter

 

(5" W.C.** to 10.5" 

W.C. Pressure)

Sediment Trap

CONNECTING FIREPLACE TO GAS 
SUPPLY

Installation Items Needed

•  Phillips screwdriver 
•  sealant (resistant to propane/LP gas, not 

provided)

1.  Remove screws that attach branch sup

-

port to fireplace (see Figure 23). Carefully 

lift  up  branch  support  and  remove  from 

fireplace (see Figure 23).

NOTICE:  Most  building  codes 

do  not  permit  concealed  gas 

connections. A flexible gas line 

is provided to allow accessibility 

from the fireplace (see Figure 23). 

The flexible gas supply line con

-

nection to the equipment shutoff 

valve should be accessible.

Figure 23 - Removing Branch Support 

From Fireplace

Flexible 

Gas Line

Branch Support

We  recommend  that  you  install  a  sediment 

trap in supply line as shown in Figure 22. Lo

-

cate 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. A sediment 

trap  traps  moisture  and  contaminants.  This 

keeps them from going into fireplace controls. 

If sediment trap is not installed or is installed 

wrong, fireplace may not run properly.

2. 

Route  flexible  gas  line,  included,  from 

fireplace  control  to  equipment  shutoff 
valve through side or rear access holes 
in outer casing.

3.  Apply  pipe  joint  sealant  lightly  to  male 

threads  of  gas  connector  attached  to 

flexible gas line/equipment shutoff valve 

(see Figure 24).

 CAUTION: Avoid damage to 

gas  control.  Hold  gas  control 

with wrench when connecting it 

to gas piping and/or fittings.

4.  Check all gas connections for leaks. See 

Checking Gas Connections, 

page 19.

5.  Replace branch support back into fireplace. 

Feed flexible gas line into fireplace base area 
while replacing branch support. Make sure 
the entire flexible gas line is in fireplace base 
area. Reattach branch support to fireplace 
with screws removed in step 1.

Figure 24 - Attaching Flexible Gas Line 

to Equipment Shutoff Valve

Flexible Gas Line 
from Fireplace Gas 

Regulator Provided 
With Fireplace

To Control 
Valve

Equipment 
Shutoff Valve

PROPANE/LP

To External 
Regulator

NATURAL

To Gas Supply

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 39: ..._____________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____...

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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