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                        -V b eNt deCoratIVe Gas FIrePla Ce
oWNer’s oPeratIoN aNd INstallatIoN maNal u
o-tl rePort # 114-F-16-4
Natural Gas models
m36(b,h), m42(b,h), Vm36(b ,h) 
aNd Vm42(b ,h) 
ProP aNe/lP Gas models
m36P(b,h), m42P(b,h), 
Vm36P(b ,h) aNd Vm42P(b ,h) 
	 W ARNING:	 If	 the	 information	 in	 these	 instructions	
is	 not	 follow ed	 exactly ,	 a	 fire	 or	 explosion	 may	 result	
causing	property	damage,	personal	injury	or	death.
FOR YOUR SAFETY
—	 Do	 not	 store	 or	 use	 gasoline	 or	 any	 other	 flamma
                    
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                        	 W ARNING: 	 Improper 	 installation, 	 adjustment, 	 al- teration,	 service	 or	 maintenance	 can	 cause	 injury	 or	 property	 damage.	 Refer	 to	 this	 manual	 for	 correct	 in- stallation and operational procedures. For assistance  or	 additional	 information	 consult	 a	 qualified	 installer ,	 service agency or the gas supplier. NOT FOR USE WITH SOLID FUEL CHECK LOCAL CODES PRIOR TO INSTALLATION SAVE THIS BOOK This	 book	 is	 valuable.	 In	 addition	 to	 instructing	 you	 on	 how	 to	 ins
                    
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                        saFety 1. This appliance is only for use with the type   WARNING: This product con- of gas indicated on the rating plate. This  appliance is not convertible for use with  tain s 	 an d/o r	 generates	 ch emicals	 other gases unless a certified kit is used. known	to	 the 	 State	 of	 California	 2. For propane/LP fireplace, do not place  to	 cause 	 cancer	 or	 birth	 defects	 propane/LP supply tank(s) inside any  or	other	reproductive	harm. structure. Locate propane/LP supply  tank(s) outdoors. 
                    
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                        saFety Continued 11. Keep the area around your fireplace adequate clearances around air open- clear of combustible materials, gasoline ings into the combustion chamber along  and other flammable vapor and liquids. with adequate accessibility clearance for  Do not run fireplace where these are servicing and proper operation. used or stored. Do not place items such  16. Do not install fireplace directly on carpet- as clothing or decorations on or around  ing, vinyl tile or any combustible material
                    
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                        INtroduCtIoN Continued The installation must conform with local codes  or, in the absence of local codes, with the cur-  CAUTION: Do not connect  rent National Fuel Gas Code, ANSI Z223.1/ appliance	 before	 pressure	 test- NFPA 54. This appliance complies with ANSI  ing	 gas	 piping.	 Damage	 to	 gas	 Z21.50/CSA 2.22. valve	 may	 result	 and	 an	 unsafe  condition	may	be	caused.  WARNING: Installation of  this	 appliance	 should	 be	 done	 The appliance and it’s individual shutoff valve  must be
                    
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                        ProduCt sPeCIFICatIoNs GAS RATING - NATURAL M36(B,H),	VM36(B,H) M42(B,H),	VM42(B,H) Max. Input Rating: 40,000 Btu/Hr 45,000 Btu/Hr Manifold Pressure: 3.5" WC (.87 kPa) 3.5" WC (.87 kPa) Minimum Supply Pressure: 4.5" WC (1.12 kPa) 4.5" WC (1.12 kPa) Maximum Supply Pressure: 10.5" WC (2.66 kPa) 10.5" WC (2.66 kPa) Orifice Size: # 30 # 29 GAS RATING - PROPANE/LP M36P(B,H),	VM36P(B,H) M42P(B,H),	VM42P(B,H) Max. Input Rating: 40,000 Btu/Hr 45,000 Btu/Hr Manifold Pressure: 10" WC (2.49 kPa) 10" WC (2.
                    
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                        Pre-INstallatIoN PreP aratIoN CLEARANCES MANTEL CLEARANCES AND WALL  Minimum clearances to combustibles are: DETAILS Back and Sides of Outer Surround 0" min. A combustible mantle shelf maybe installed  a maximum 12" (22.9 cm) from the wall.  Drywall to Sides of Front Face  Figures 5 and 6 show the minimum allow-     (Nailing Flanges) 0" min. able distances from various combustible  “B” Vent Surfaces 1" min. mantle components in relation to fireplace  Ceiling to Opening 42" min. opening. Floor 0"
                    
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                        Pre-INstallatIoN PreP aratIoN Continued FRAMING 1. Frame appliance enclosure as illustrated  in Figures 7 and 8.  Note: If a wall covering is used to line the  enclosure, then all measurements must  be from the surface of the covering. 2. Place the appliance into the framing and A secure it. B  Note: If appliance is to be raised above  floor level, a platform must be built to  C support the appliance. 3. Install the supply line to the appliance  M36(B,H),	 M42(B,H),	 using a 1/2" NPT black iron 
                    
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                        Pre-INstallatIoN PreP aratIoN Continued B-Vent Piping INSTALLING TRANSITION PIPE AND  STARTER COLLAR The transition pipe and starter collar shown Starter Collar in Figure 9 are supplied with the fireplace,  unattached and ready for installation. Re- move starter collar and set aside. Slide  Transition Pipe transition pipe over vent collar and attach  with a minimum of three screws. Replace  starter collar over transition pipe and attach  Vent Collar using four screws located on leg stands (five 
                    
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                        VeNtING INstallatIoN Continued Listed Vent Cap Listed Listed Vent Cap Vent Cap Maintain Maintain Listed Listed Clearance Clearance Maintain Maintain Listed Support Each Clearance Lateral At Listed Least Every Clearance 45° 60° 6 Feet 12' Min. 45° 8' Position 10' Position 6' Firestop Firestop Position 12' Min. 12' Min. 45° Firestop Maintain Maintain Maintain Listed Listed Listed Clearance Clearance Clearance EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 Figure 10 - Typical B-Vent Configuration Some codes areas a
                    
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                        VeNtING INstallatIoN Continued CHECKING FOR PROPER VENTING  NOTICE: This appliance is  After completing and checking electrical,  e q u i p p e d 	 w i t h 	 a 	 v e n t 	 s a f e t y	 gas and vent connections, follow the lighting  shutoff	 switch	 which	 will	 shut	 instructions and allow main burner to run  down	 the	 appliance	 in	 the	 case	 for approximately 5 minutes. Hold a lighted  of	 a	 venting	 problem.	 Do	 not	 match or cigarette near the top edge of fire- place opening and play it 
                    
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                        O  IN OUT  INstallatIoN Continued 4. Connect wires to control circuit. Connect  OPTIONAL WIRELESS HAND-HELD  white wire to terminal marked TH/TP on  REMOTE CONTROL INSTALLATION control valve. Connect red wire to male  Note: If using optional wireless hand-held  blade connector provided at open end of  remote control, the wall switch is no longer  safety circuit wiring (see Wiring Diagram,  operational.  page 22). Installing Receiver 5. Locate battery clip mounted on back of  1. Remove front refr
                    
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                        INstallatIoN Continued Installing 9-Volt Battery in Hand-Held DESA Heating, LLC recommends that a black  Remote	Control	Unit	 iron gas line be routed from the gas source,  1. Remove battery cover on back of remote through a sediment trap (see Figure 20) and  control unit. into appliance. Once connected through ap- pliance, a flexible gas line may be used for  2. Attach terminal wires to battery (not  ease of installation to gas control valve (see  included). Place battery into battery hous- Figu
                    
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                        INstallatIoN Continued Complete your gas installation by connect- ing incoming gas line with flexible gas line.  	 C A U T I O N : 	 C o m p o u n d s 	 u s e d	 Secure tightly with wrench but DO NOT  on	 threaded	 joints	 of	 gas	 piping	 OVERTIGHTEN. shall	 be	 resistant	 to	 the	 action	 of	 Liquefied	 Petroleum	 (LP 	 or	 EMBER AND PAN MATERIAL  propane)	 and	 should	 be	 applied	 PLACEMENT lightly	 to	 ensure	 excess	 sealant	 1. Open bag(s) of vermiculite and fill entire  burner pan until 
                    
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                        INstallatIoN Continued Grate Pan and Ember  NOTICE:	 Do	 not	 put	 lava	 rock	 in-  0.5" Material s i d e 	 b u r n e r 	 p a n 	 o r 	 a r o u n d 	 t h e 	 a i r	 mixer	 fitting.	 Placing	 lava	 rock	 inside	 burner	 pan	 or	 blocking	 openings of the propane/LP air- 0.5"  mixer	 could	 cause	 performance	 problems. Burner Pan Figure 24 - Pan and Ember Material  Log 4 Clearances LOG	PLACEMENT	FOR	M36,	M36P ,	 Log 3 VM36 AND VM36P MODELS Log 2 1. Place small front right log (log 1) on right  No
                    
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                        INstallatIoN Continued 5. Place upper end of log 5 into notch on top  LOG	PLACEMENT	FOR	M42,	M42P ,	 inner right of log 1 (see Figure 31). Rest  VM42 AND VM42P MODELS lower end of log 5 on middle grate finger  1. Place large back log (log 1) onto grate  as shown in Figure 32. making sure notches rest over grate (see  6. Place log 6 into notch on top right of log  Figure 29). 1 (see Figure 31). Rest lower end of log  2. Insert lower end of log 2A between first  6 on top of log 2B (see Figure 32).
                    
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                        INstallatIoN Continued COMBUSTION AIR KIT MODEL AK4 INSTALLING OPTIONAL GLASS  (OPTIONAL) DOOR ACCESSORY The outside air kit may be installed on the left   CAUTION: Use only glass  side of fireplace only. The vent can be installed  through any outside wall a minimum of three doors	 certified	 for	 use	 with	 this	 feet below fireplace termination cap. The  appliance. handle to operate damper door for outside  air inlet will be located inside the left “screen Note: Glass door may be heavy for som
                    
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                        INstallatIoN Continued 6. Repeat the process for the opposite door Spring  Hold-Down  Clip assembly. Screw 7. To adjust doors, slide them partially open.  Side  Using a screwdriver, loosen hold-down  Front  screws in the spring clip (see Figure 36)  Face and pivot plate. 8. Close both doors until evenly joined at the  Partially  middle and note the gap at outer edges of  Opened  face. Door 9. Reopen one door at a time and retighten  Figure 36 - Adjusting Glass Doors upper and lower hold-down scr
                    
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                        oPeratIoN FOR YOUR SAFETY 1. STOP! Read the safety information, col- umn 1. READ BEFORE LIGHTING 2. Turn wall switch to the OFF position.  WARNING: If you do not fol- 3. Turn off all electric power to appliance. low	 these	 instructions	 exactly ,	 4. Fully open glass doors if installed. 5. Remove front refractory brick access  a	 fire	 or	 explosion	 may	 result	 panel. causing	 property	 damage,	 per- 6. Turn gas control knob clockwise   sonal	injury	or	loss	of	life. to the OFF position (see F
                    
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                        oPeratIoN Continued  Note: Burner may light if hand-held remote  TO TURN OFF GAS  was on when selector switch was last  TO APPLIANCE turned off. You can now turn burner on  1. Turn off wall switch. and off with the hand-held remote control  2. Turn off all electric power to appliance if  unit.  service is to be performed.  IMPORTANT: Do not leave selector switch  3. Fully open glass doors if installed. in the REMOTE or ON position when pilot  4. Remove front hearth brick and control  is not lit.