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117541-01B

Figure 31 - Operating Damper Handle

Damper 

Weight

To Close 
Damper

To Open 

Damper

Damper 

Weight

OpeRatiOn and 

Maintenance guidelineS

Continued

Open Position

Closed Position

Figure 32 - Outside Air Kit Lever

  WARNING:  Fireplaces 

equipped  with  glass  doors 

should  be  operated  only  with 

doors fully opened or doors fully 

closed. Doors, if left partly open, 

may draw gas and flame out of 

the  fireplace  opening  creating 

risks of both fire and smoke.

Cleaning Glass

Clean glass with any commercial glass cleaner or 

soap and water. Do not use any abrasive material 

to clean glass. Do not clean glass with any cool 

water if glass is still hot from the fire and smoke.

A gas line or gas log lighter may be installed for the 

purpose of installing a vented or vent-free deco

-

rative gas appliance incorporating an automatic 

shutoff device and complying with the S

tandard 

for Decorative Gas Appliances for Installation in 

Vented Fireplaces, ANSI Z21.60

 or 

American Gas 

Association draft requirements for Gas Fired Log 

Lighters for Wood Burning Fireplaces, Draft NO. 

4

 dated August, 1993.

If you wish to install an unvented (vent-free) gas 

log set, only unvented gas log sets which have been 

found to comply with the standard for unvented 

room heaters, ANSI Z21.11.2 are to be installed 

in this fireplace.

OUTSIDE AIR AND DAMPER 
HANDLE OPERATION

The damper handle, which opens and closes the 

damper blade, is located in the upper front face 

of the fireplace. Pushing the handle forward and 

up  through  the  keyway  slot  will  free  damper 

blade to automatically open. Pushing the handle 

forward and down will lock damper blade closed 

(see Figure 31).

The outside air kit lever is located at the left and 

right hand sides of fireplace (see Figure 32). Lift

-

ing lever up will free the outside air door to open. 

Pulling lever down will lock the door. 

 WARNING: Risk of fire! Re

-

place  grate  with  DESA  model 

117544-03  JM36,  117544-01 

JM42, 111754-02 JM50 grate only. 

This  grate  has  been  designed 

to  keep  the  operation  of  your 

fireplace safe and efficient.

Summary of Contents for JM36 Series

Page 1: ...for use with a vented gas log approved to ANS Z21 60 Z21 84 or RGA 2 72 standards or for use with a vent free gas log heater approved toANS Z21 11 2 standard This wood burning fireplace complies with...

Page 2: ...e of any component part not manufac tured or approved by DESAin combination with a DESA fireplace system Proper installation is the most important step in ensuring safe and continuous operation of the...

Page 3: ...2 AIR SPACE BACK AND SIDES 0 TO BOTTOM GAS LINE KNOCKOUTS 12 EACH SIDE COMBUSTIBLE WALL BOARD NO COMBUSTIBLE MATERIAL ON FACE MINIMUM 12 TO PERPENDICULAR SIDEWALL HEARTH EXTENSION 60 X 20 1 CHIMNEY AI...

Page 4: ...67 11 GAS LINE KNOCK OUTS AIR KIT KNOCK OUT LEFT SIDE OUTSIDE AIR 11 2 AIR SPACE BACK AND SIDES 0 TO BOTTOM GAS LINE KNOCKOUTS 12 EACH SIDE COMBUSTIBLE WALL BOARD NO COMBUSTIBLE MATERIAL ON FACE MINI...

Page 5: ...RIAL TERMINATION SQUARE CHASE TOP ROUND TOP TERMINATION COMBUSTIBLE WALL BOARD NO COMBUSTIBLE MATERIAL ON FACE 0 TO BOTTOM OUTSIDE AIR 11 2 AIR SPACE BACK AND SIDES GAS LINE KNOCKOUTS 12 EACH SIDE MIN...

Page 6: ...allation The minimum height of the chimney measured from the base of the fireplace to the flue gas outlet of the termination is 9 5 feet minimum of 4 feet of chimney pipe sections required for outdoor...

Page 7: ...hearth extension with a non combustible material see Figure 3 WARNING Hearthextension is to be installed only as shown in Figure 3 Fireplace Installation Continued Figure 3 Hearth Extension Seal Gap...

Page 8: ...imney together it is important to assure the joint between the chimney sections is locked Check by pulling chimney upward after locking The chimney will not come apart if properly locked It is not nec...

Page 9: ...3 4 4 OFFSET CHART 22 50 FT SYSTEM HEIGHT Figure 7 Typical Offset Terminations Return Elbow Offset Elbow Return Elbow Offset Elbow 6 Max 6 Max 6 Max 6 Max 6 Max 6 Max Return Elbow Offset Elbow Offset...

Page 10: ...ling Frame Firestop Spacer Screws or Staples Min of 8 Firestop Spacer Screws or Staples Min of 8 Penetrating the roof To maintain a 1 JM36 or 2 JM42 JM50 clear ance to the pipe on a roof with a pitch...

Page 11: ...f using 8 x 3 4 screws and then sealed with roof coating to prevent leakage through the screw holes A roof coating must also be applied around the perimeter of the flashing to provide a proper seal Na...

Page 12: ...her opening When overlapping with a noncombustible facing material use only noncombustible mortar or adhesive Optional Gas Line Installation Gas line hook up should be done by your supplier or a quali...

Page 13: ...s log the damper must be removed or permanently locked in the fully open position and the glass doors must be in the fully open position Figure 18 Gas Line Knockout Side Firebrick Finished Side Refrac...

Page 14: ...RIGHT PANEL HEARTH PANEL AH Q P AG AC AE AF FULL AF AF AP AC AG AT AG Q AI Q AI C C D D FULL C D C G FULL FULL G FULL FULL FULL FULL FULL H H I I M M AB L FULL D C AS C FULL FULL FULL FULL FULL FULL...

Page 15: ...Installation for Model V JM42 Brick Installation Continued See instruction on page 14 before installing brick AO REAR PANEL RIGHT PANEL HEARTH PANEL R FULL FULL FULL FULL FULL FULL FULL B D C A B C A...

Page 16: ...A AB AC AD Box 1 Hearth 36 2 Box 2 Rear 36 2 Box 3 Left or Right 36 1 2 Box 4 Left or Right 36 1 2 TOTAL 4 0 0 0 0 0 0 0 0 0 0 2 4 0 brick matrix for model V JM36 Continued Brick Matrix AE AF AG AH AI...

Page 17: ...W X Y Z AA AB AC AD Box 1 Hearth 42 2 2 2 2 2 2 Box 2 Rear 42 1 Box 3 Left or Right 42 1 1 Box 4 Left or Right 42 1 1 TOTAL 3 2 0 0 2 2 2 2 2 0 2 0 0 0 Brick Matrix V JM42 brick matrix for model V JM4...

Page 18: ...ix Q R S T U V W X Y Z AA AB AC AD Box 1 Hearth 50 Box 2 Rear 50 3 Box 3 Left or Right 50 1 1 Box 4 Left or Right 50 1 1 TOTAL 5 2 0 0 0 0 0 0 0 0 0 0 0 0 Brick Matrix V JM50 brick matrix for model V...

Page 19: ...of grout mixture This will keep the mixture moist and it will not dry out before use 5 Begin grouting by first doing a Filler Pass This is done by filling the joint about 3 4 full with grout mixture...

Page 20: ...door frame into face opening and tighten screws see Figure 25 door frame MODELS BDMO36E G C BDMO42E G C AND BDMO50E G C Installation 1 Remove screws from smoke shelf see Figure 26 2 Mount top door fra...

Page 21: ...he glass must be allowed to warm slowly and evenly The tempered glass will withstand a gradual temperature rise to 550 F which is more than a normal fire will generate Such materials as pitch wax lade...

Page 22: ...tallation in Vented Fireplaces ANSI Z21 60 or American Gas Association draft requirements for Gas Fired Log Lighters for Wood Burning Fireplaces Draft NO 4 dated August 1993 If you wish to install an...

Page 23: ...BDM42E 42 Ebony BDM42G 42 Pewter BDM42C 42 Oiled Bronze BDM50E 50 Ebony BDM50G 50 Pewter BDM50C 50 Oiled Bronze BDMO36E 36 Ebony BDMO36G 36 Pewter BDMO36C 36 Oiled Bronze BDMO42E 42 Ebony BDMO42G 42...

Page 24: ...OT A UPC 117541 01 Rev B 11 05 117541 01 Firestop Spacer FS 10 1100EFS 10DM for model GM36 Roof Flashing V6F 10DM 0 to 6 12 Pitch V12F 10DM 6 12 to 12 12 Pitch Replacement and Accessory Parts Continue...

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