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                        C
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E
R
G
T
I
INSTALLER/CONSUMER
SAFETY INFORMATION
PLEASE READ THIS MANUAL 
BEFORE INSTALLING AND 
USING APPLIANCE
Direct Vent Insert 
WARNING! 
IF THE INFORMATION IN THIS 
Models: LHERDV20
MANUAL IS NOT FOLLOWED 
EXACTLY, A FIRE OR EXPLO-
 LHERDV30
SION MAY RESULT CAUSING 
PROPERTY DAMAGE, PER-
 LHECDV20
SONAL INJURY OR LOSS OF 
LIFE.
 LHECDV30
FOR YOUR SAFETY
Installation and service must 
be performed by a qualified 
installer, service agency or 
the gas supplier.
WHAT TO DO IF YOU SMELL GAS:
                    
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                        LHEDV Series Direct Vent Insert Table of Contents PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THIS APPLIANCE.  Thank you and congratulations on your purchase of a CFM Corporation fireplace insert. IMPORTANT - Read all instructions and warnings carefully before starting installation. Failure to follow these  instructions may result in a possible fire hazard and will void the manufacturers' warranty. Installation Instruction  Important Curing/Burning Instructions .............
                    
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                        LHEDV Series Direct Vent Insert Installation & Operating Instructions This gas appliance should be installed by a qualified installer in  WARNING: Check with your electronics manufacturer  accordance with local building codes and with current CSA- before installing a television or other electronic de- B149.1 Installation codes for Gas Burning Appliances and  vice above this fireplace. Equipment. FOR U.S. Installations follow local codes and/or the  current National Fuel Gas Code ANSI Z223.1/NFPA 5
                    
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                        LHEDV Series Direct Vent Insert Fireplace & Trim Dimensions 3" (75mm)  B D Dia. J A A G I L H     B K C Zero Clearance Kit   M   Insulation P U Q E V T 4894 O LHEDV SPEC F S 4/03 R Minimum Fireplace  N Insert Opening 1" Air Circulating Channel Gas Inlet Knockout 1 = LHESSB    Q - Fireplace opening height U - Firebox depth at insert back height (V) 2 = LHESLB/LHEABSL/LHESLGA 3 = LHECSLB/LHECSLMB/LHECSLSA R - Fireplace opening width V - Insert back height 4 =  LHEACNSS S - Depth of insert NOTE: LH
                    
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                        LHEDV Series Direct Vent Insert Mantels When the unit is installed into a woodburning fireplace,  37 ¹⁄₄" (946mm) the minimum distance the mantel can be placed above  the fireplace is governed by local building codes appli- cable to woodburning fireplaces. Consult local authori- ties having jurisdiction for these clearances. For applications requiring the use of a Zero Clearance 35" (889mm) Kit, the minimum height a mantel can be installed above  the fireplace is 24" (610 mm) from the top of the upp
                    
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                        LHEDV Series Direct Vent Insert Gas Specifications LHECDV20 / LHERDV20     Max. Min. Air Shutter LHEDV30 / LHERDV30      Gas Input  Input Setting Certified To  Model Fuel Control Btu/h Btu/h Front Rear  LHECDV20RN Natural Millivolt  20,000 14,000 Fully Closed  ANSI Z 21.88-2005 / CSA 2.33-2005    Hi/Lo   Open 50% Vented Gas Fireplace Heaters  LHECDV20RP Propane Millivolt 20,000 15,000 Fully Closed     Hi/Lo   Open 80% Preparation  LHECDV20RFN Natural Comfort  20,000 14,000 Fully Closed     Control
                    
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                        LHEDV Series Direct Vent Insert 1/2" Gas Supply Fan Removal Instructions 1/2" x 3/8" Shut Off Valve 1. Turn off gas and electricity. 3/8" Nipple 2. Remove the front glass. 3/8" Union 3. Remove the logs. 3/8" Nip- ple CAUTION: Logs may be hot! 4. For Model LHECDV20: remove burner assembly  FP297 and bracket rear log. For Model LHECDV30: remove  Fig. 4  Typical gas supply installation. bracket rear log and cover fan. 5. Remove the fan mounting nuts (2 nuts). (Fig. 5) Gas Supply Pressures 6. Slip o
                    
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                        L I P TP TH THTP LHEDV Series Direct Vent Insert Right Side Installation Left Side Installation Venting Installation 1. The fireplace may be installed in and vented  On/Off  Switch As- through any solid fuel fireplace that has a minimum  On/Off  sembly Switch As- fireplace opening 25 ¹⁄₄"W x 17 ¹⁄₂" H x 13 ¹⁄₂"D (641  sembly x 438 x 343 mm) for LHECDV20 and LHERDV20 or  28 ³⁄₄"W x 21"H x 15 ¹⁄₂"D (730 x 533 x 394 mm)  for  LHECDV30 and LHERDV30 and has been installed  Wiring from  in accordance wit
                    
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                        LHEDV Series Direct Vent Insert Flue gas exits  Liner Installation through the  1) Attach flexible pipe  vent termination  The collar extending down from the termination base  to rain cap rain cap 2) Secure with clamp is the air intake connector. Be sure the flex vent, which  3) Attach raincap to  is connected to this collar, is also connected to the  vent termiantion us- Outside combustion  ing three screws air enters through the  labelled air intake flue collar on the fireplace. Make sure  lower l
                    
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                        LHEDV Series Direct Vent Insert Flue gas exits  Damper through the vent  3" Flex Vent  termination rain  Two Pieces 1) Attach flexible pipe  cap to rain cap 2) Secure with clamp Clamps &  3) Attach raincap to  Screw vent termination using  Outside combus- three screws tion air enters Fastener  through the lower Plate level of the vent  Pull flexible pipe  termination Gasket through vent  termination Secure with  clamp and  three screws A or B Vent with  7" Inside Minimum and  14" Outside Maximum F
                    
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                        LHEDV Series Direct Vent Insert Round Vent Termination Installation Ceramic Refractory Installation Round Vent Termination Model HEDVRT is designed to  1. Remove front glass. be installed onto the LHECDV20, LHERDV20, LH- 2. Remove logs from unit. ECDV30 and LHERDV30 direct vent insert fireplaces.  3. Remove refractory from package. This round vent termination is built to be installed onto  Refractory are fragile and must be handled  any type A-vent round chimney or B-vent round chim- with care. W
                    
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                        LHEDV Series Direct Vent Insert Venting Components 8" x 12" Vent Termination Kit  Model: HEDVT (8" x 12" ) B (Fit typical 8" x 12" and 9" x 13" flue tile) Kit Includes: A  A - 8" x 12" Vent Termination (x1) C  B - Stainless Steel Clamps (x4)  C - Hardware Package (x1) High Temperature Sealant  D - High Temperature Sealant (x1) D 12" x 12" Vent Termination Kit  Model: HEDVT (12" x 12") FP1298  (Fit typical 12"-13" x 12"-13" flue tile) RHEDV B Kit Includes: vent components 2/03 A - Vent Termination 
                    
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                        LHEDV Series Direct Vent Insert Operating Instructions LHECDV30 and LHERDV30 General Glass Information 1. Unhook the frame window by pulling the handle of  Only ceramic glass approved by CFM Cor- the two (2) latches at the bottom part of the window  poration may be used for replacement on  frame; pull the left side latch counterclockwise and  this unit. the right side latch, clockwise. (Fig. 21) 1.  The use of substitute glass will void all product  2. Lift and unhook the glass frame at the top.
                    
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                        I �� L LHEDV Series Direct Vent Insert e. Place the burner lava rock on the  JR7 front area of the burner housing.  JR8 (Fig. 22) LHECDV30, LHERDV30 (Fig. 23) a. Place the rear center log (KR24).  Use the log's bottom holes to lo- JR10 cate it onto the two (2) pin studs  of the rear log bracket on the  center. JR9 b. Place rear left log (KR22). Use  the log's bottom holes to locate it  onto the two (2) pin studs of the  rear log bracket on the left.  c. Place rear right log (KR23). Use  the log'
                    
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                        LHEDV Series Direct Vent Insert First Firing Flame Characteristics Upon completing the gas line connection, a small  It is important to periodically perform a visual check of  amount of air will be in the lines. When first lighting unit  the pilot and the burner flames. Compare them to the  with pilot light, it will take a few minutes to purge them- Figure 26 and Figure 27 or 28. If any of the flames ap- selves of this air. Once the purging is complete, the  pear abnormal call a service person. pil
                    
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                        O 3 2 ON 1 T O LHEDV Series Direct Vent Insert Lighting and Operating Instructions FOR YOUR SAFETY READ BEFORE LIGHTING WARNING:If you do not follow these instructions exactly, a fire or explosion  may result causing property damage, personal injury or loss of life. A. This heater has a pilot which must be lit manu- instructions. ally. When lighting the pilot follow these instruc- • If you cannot reach your gas supplier, call  tions exactly. the Fire Department B. BEFORE LIGHTING smell all around
                    
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                        LHEDV Series Direct Vent Insert Troubleshooting the Gas Control System SIT NOVA 820 Millivolt Valve NOTE:  Before trouble shooting the gas control system, be sure external gas shut off is in the “On” position. WARNING:  Before doing any gas control service work, remove glass front.   SYMPTOM  POSSIBLE CAUSES  CORRECTIVE ACTION 1. Spark ignitor will not light A. Defective or misaligned  Using a match, light pilot. If pilot lights, turn off        electrode at pilot. pilot and push the red button 
                    
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                        LHEDV Series Direct Vent Insert Troubleshooting the Gas Control System Honeywell Millivolt Valve START CHECK Gas Supply On Supply Line Hooked Up NO Shutoff Valve Open YES Lockout Has Engaged. Wait  60 Seconds And Try Again. For Spark At Electrode While  Pilot Lights With  Depressing Piezo — 1/8" Gap To  NO Piezo Ignitor Pilot Hood Needed. All Wiring Connections Replace Piezo Ignitor YES For Air In The Lines Thermopile Needs A Minimum  325mv. Adjust Pilot Flame Height. All Wiring Connections. Rep
                    
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                        LHEDV Series Direct Vent Insert 7. If the manual switch is in the LOCAL position, the  Instructions for RF Comfort Control Valve valve will be at the highest fixed pressure setting.  The transmitter will control the fan only. The Comfort Control Valve allows remote control of  temperature, fan and flame appearance. Shut Off Procedure NOTE: The antenna should hang in free air away from  If the manual switch is in the REMOTE position, the  transmitter can shut off the main burner and fan. How- groun
                    
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                        LHEDV Series Direct Vent Insert Delay Timer Mode Pilot As- Fan sembly The shut off delay timer has a maximum of 2 hours and  a minimum of zero minutes. To change the timer level,  press the time key followed by an arrow key. Pushing  the key once will change the timer by 10 minutes. Auto Mode   In the AUTO mode, the room temperature, set tem- perature, flame and fan levels will be shown. AUTO will  appear next to both the flame and fan icons. When the control is in the AUTO mode, the main burner