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NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Millivolt SIT Systems

Propane Gas to Natural Gas

Conversion Kits

Models

Catalog No.

MLDVT-30

H665

MLDVT-35

H7293

MLDVT-40

H7675

MLDVT-45

85L66

Electronic DEXEN Systems

Natural Gas To Propane Gas

Conversion Kits

Models

Catalog No.

MLDVT-30

H7668

MLDVT-35

H7295

MLDVT-40

H7669

MLDVT-45

H7544

Millivolt SIT Systems

Natural Gas To Propane Gas

Conversion Kits

Models

Catalog No.

MLDVT-30

H7672

MLDVT-35

H7292

MLDVT-40

H7673

MLDVT-45

H7546

Electronic DEXEN Systems

 Propane Gas To Natural Gas

Conversion Kits

Models

Catalog No.

MLDVT-30

H670

MLDVT-35

H7296

MLDVT-40

H767

MLDVT-45

H7545

In Canada:

THE CONVERSION SHALL BE CARRIED OUT 

IN ACCORDANCE WITH THE REQUIREMENTS 

OF THE PROVINCIAL AUTHORITIES HAVING 

JURISDICTION AND IN ACCORDANCE WITH 

THE  REQUIREMENTS  OF  THE  CAN/CSA-

B49. INSTALLATION CODE.

LA  CONVERSION  DEVRA  ÊTRE  EFFECTUÉE 

CONFORMÉMENT  AUX  RECOMMANDA-

TIONS  DES  AUTORITÉS  PROVINCIALES 

AYANT  JURIDICTION  ET  CONFORMÉMENT 

AUX EXIGENCES DU CODE D'INSTALLATION 

CAN/CSA-B49..

Gas conversion kits are available to adapt your 

appliance from the use of one type of gas to 

the use of another. These kits contain all the 

necessary components needed to complete the 

task including labeling that must be affixed to 

ensure safe operation.

Kit part numbers are listed here  and the follow-

ing steps detail the conversion procedure.  Refer 

to the instructions provided with the conversion 

kit when performing any gas conversion.

GAS CONVERSION KITS

WARNING:    THIS  CONVERSION  KIT  SHALL  BE 

INSTALLED  BY  A  QUALIFIED  SERVICE  AGENCY 

IN  ACCORDANCE  WITH  THE  MANUFACTURER'S 

INSTRUCTIONS AND ALL APPLICABLE CODES AND 

REQUIREMENTS  OF  THE  AUTHORIZED  HAVING 

JURISDICTION.  IF THE INFORMATION IN THESE 

INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A 

FIRE, EXPLOSION OR PRODUCTION OF CARBON 

MONOXIDE  MAY  RESULT  CAUSING  PROPERTY 

DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.  

THE INSTALLATION IS NOT PROPER AND COM-

PLETE UNTIL THE OPERATION OF THE CONVERTED 

APPLIANCE  IS  CHECKED  AS  SPECIFIED  IN  THE 

OWNER INSTRUCTIONS SUPPLIED WITH THE KIT.

THE QUALIFIED SERVICE AGENCY PERFORMING 

THIS INSTALLATION ASSUMES RESPONSIBILITY 

FOR THIS CONVERSION.

AVERTISSEMENT: CET ÉQUIPEMENT DE CONVERSION 

SERA  INSTALLÉ  PAR  UNE  AGENCE  QUALIFIÉE  DE 

SERVICE  CONFORMÉMENT  AUX  INSTRUCTIONS  DU 

FABRICANT ET TOUTES EXIGENCES ET CODES APPLI-

CABLES DE L'AUTORISÉS AVOIR LA JURIDICTION.  SI 

L'INFORMATION DANS CETTE INSTRUCTION N'EST PAS 

SUIVIE EXACTEMENT, UN FEU, EXPLOSION OU PRODUC-

TION  DE  PROTOXYDE  DE  CARBONE  PEUT  RÉSULTER 

LE  DOMMAGES  CAUSER  DE  PROPRIÉTÉ,  PERTE  OU 

BLESSURE PERSONNELLE DE VIE.  L'AGENCE QUALI-

FIÉE DE SERVICE EST ESPONSABLE DE L'INSTALLATION 

PROPRE DE CET ÉQUIPMENT.  L'INSTALLATION N'EST 

PAS  PROPRE  ET  COMPLÉTE  JUSQU'à  L'OPÉRATION 

DE L'APPAREIL CONVERTI EST CHÉQUE SUIVANT LES 

CRITèRES ÉTABLIS DANS LES INSTRUCTIONS DE PRO-

PRIÉTAIRE PROVISIONNÉES AVEC L'ÉQUIPEMENT.

Step .

 Turn off the gas supply to the appliance.  

Step 2.

 Carefully remove the logs. 

Exercise care so as not to break the logs

.

Step 3.

 Refer to 

Figure 51

.

Remove the burner assembly with attached venturi tube.

Summary of Contents for Merit MLDVT-45NE

Page 1: ...FE DIRECT VENT MLDVT 30 35 40 45 SERIES Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not light any ap...

Page 2: ...owing vent com ponents only Secure Vent Direct Vent System Compo nents Secure Flex Flexible Vent Components manufactured by Security Chimneys Inter national and Z FLEX Model GA Venting Systems listed...

Page 3: ...pane tanks are at pressures that will cause damage to valve components Verify that the tanks have step down regulators to reduce the pressure to safe levels Do not use these appliances if any part has...

Page 4: ...re Tap Manifold Burner Stage Terminal Ground TP PILOT OUT VENT LO TH TP TH TP HI IN IN Regulator Mounting Screw Cold Climate Insulation For cold climate installations seal all cracks around the applia...

Page 5: ...bustible and combustible exterior sidewall This distance may be decreased to 2 5 mm for non combustible exterior sidewalls only if the SV4 5HT 2 termination is used Be aware that this is a heat produc...

Page 6: ...e c n a r a e l C H y l b m e s s a r o t a l u g e r r e t e m t e e f 5 f o t h g i e h a n i h t i w m c 9 t e e f 3 y l b m e s s a r o t a l u g e r r e t e m e h t e v o b a t e e f 5 f o t h g...

Page 7: ...sides as detailed inTable6 withthefollowingexception When the unit is installed with one side flush with a wall the wall on the other side of the unit must not extend beyond the front edge of the unit...

Page 8: ...box floor securing the glass door Remove the door by tilting it outward at the bottom and lifting it up Set the door aside protecting it from inadvertent damage See Figure 46 on Page 30 TYPICAL INSTAL...

Page 9: ...P VENT WITH ONE 90 ELBOW Framing should be constructed of 2x4 or larger lumber Inches mm D 30 D is the required framing depth dimension when the finish material drywall thickness is 2 in 3mm A 2 Frami...

Page 10: ...rlocalcode requirements i e arebelowgradepenetrations of the gas line allowed etc IMPORTANT Ifpropaneisused beawarethat if tank size is too small i e under 100 lbs if this is the only gas appliance in...

Page 11: ...ructions should be used as a guideline and do not supersede local codes in any way Install vent according to local codes theseinstructions thecurrentNational Fuel Gas Code ANSI Z223 1 in the USA or th...

Page 12: ...5 5 5 5 2 6 4 0 1 2 0 0 3 7 5 5 7 4 0 0 1 1 0 2 6 6 5 2 5 0 2 2 0 0 4 5 7 6 5 2 6 5 0 0 3 0 0 3 9 6 5 7 5 0 0 0 2 0 2 2 7 6 1 0 3 0 0 4 5 3 7 5 2 1 6 1 0 0 2 0 3 5 9 7 5 2 6 6 0 1 0 2 0 3 1 8 5 7 6 0...

Page 13: ...are available in net lengths of 4 1 2 114 mm 10 1 2 267 mm 22 1 2 572 mm 34 1 2 876 mm and 46 1 2 1181 mm Refer to the Vent Section Length Charts on Page 12 for an aidinselectinglengthcombinations El...

Page 14: ...supplied with the flashing over the vent flashing joint See Figure 21 Loosen the storm collar screw Slide collar down until it meets the top of the flashing Tighten the ad justingscrew Applynon combus...

Page 15: ...ERE AN ELBOW IS THE ONLY VERTICAL COMPONENT IN THE SYSTEM See Figure 29 uWhenusingSecureFlex useFirestop Spacer SF4 5VF uCeiling Firestop Spacer SV4 5VF A Vent Restrictor as shown in Figure 14 Page 11...

Page 16: ...2 3 0 914 20 6 096 4 1 219 H H1 20 feet 6 096 m Max V V1 H H1 60 ft 18 3 m Max Figure 25 Top Vent three elbows VERTICAL VENT FIGURES TABLES CONTINUED Horizontal Outside Wall Termination System Figure...

Page 17: ...ously connected vent sections See Figure 17 on Page 13 I Continue installation of horizontal inclined sections Continue with the installation of the straightventsectionsinhorizontal inclinedrun as des...

Page 18: ...nations have been designed to perform in a wide range of weather condi tions Our terminations meet or exceed industry standards When selecting the locations of your horizontal terminations do not plac...

Page 19: ...S THE ONLY VERTICAL COMPONENT IN THE SYSTEM See Figure 29 Use Table 10 as an aid in venting component selection for a particular range of exterior wall thicknesses HORIZONTAL VENT FIGURES TABLES Figur...

Page 20: ...6 096 m Max Figure 31 Top Vent TWO 90 DEGREE ELBOWS See Table 10 on Page 19 as an aid in venting component selection for a particular range of exterior wall thicknesses HORIZONTAL VENT FIGURES TABLES...

Page 21: ...Figure 29 V H H V vWall Firestop Spacer SV4 5HF uCeiling Firestop Spacer SV4 5VF uWhen using Secure Flex use Firestop Spacer SF4 5VF vWhen using Secure Flex use Firestop Spacer SF4 5HF vWall Firestop...

Page 22: ...mperature sealant Catalog No 10K81 to the inner adapter collar approximately 1 2 inch from the end 3 Pull and extend the inner flexible vent pipe 4 Slidetheinnerflexpipeovertheadaptercol lar Ensure th...

Page 23: ...he electrical inlet cover plate from the side of the unit by removing the plate s securing screws See Figure 12 on Page 9 3 Removethe coverplate sknockoutandthen feedthepowersupplywirethroughtheknocko...

Page 24: ...artment Accessthevalvecompartmentbyremovingthe lower control compartment panel see Figure 38 by lifting and pulling the panel forward The panel is mounted on supporting tabs at the extreme right and l...

Page 25: ...e gas lines are tested and leak free be sure to rinse off the leak testing solution D Observe the individual tongues of flame on the burner Make sure all ports are open and producing flame evenly acro...

Page 26: ...ted Dis tribute these pieces over the surface of the burner as shown in Figures 44 and 45 Do not use more than is necessary Ensure that the main burner slots remain uncovered by the ember material Pos...

Page 27: ...35 H7666 WARNING Logs get very hot and will remain hot up to one hour after gas supply is turned off Handle only when logs are cool Left Rear Log Bracket Right Rear Log Bracket Rockwool Do Not Place...

Page 28: ...ot Place Rockwool Over Burner Slots Log Rack Volcanic Stone Right Rear Log Bracket 1 Position on the left rear log bracket 4 2 3 Position the left front log 2 and the right front log 3 against the log...

Page 29: ...29 NOTES...

Page 30: ...with the bottom of the door held away from the fireplace Figure 46 Hook the top flange of the door frame over the top of the firebox frame 6 Let the bottom of the door frame swing gentlyintowardsthefi...

Page 31: ...ont glass panel are in place and sealed during adjustment 1 Locate adjustment rod and adjust air shutter to the standard set ting as shown in Figure 49 adjustment rod is located in the lower control c...

Page 32: ...7 7 B F 5 4 V S e l b a t s u j d A 2 1 2 1 o t 2 1 7 g n i h s a l F 1 8 L 7 7 6 C S 5 4 V S 6 s r a l l o C m r o t S x o b s r a l l o c 6 4 2 2 H F H 5 4 V S k c a p 0 1 r e c a p S p o t s e r i...

Page 33: ...o f n i m r e T l a c i t r e V x e l F h t i w 2 1 6 o t t a l f d i g i r f o n o i t c e s r e t p a d A r a l l o c t r o p p u s f o o r t n e v d n a g n i h s a l f f o o r y l b m e s s a r a...

Page 34: ...on kit when performing any gas conversion Gas Conversion Kits Warning This conversion kit shall be installed by a qualified service agency in accordance with the manufacturer s instructionsandallappli...

Page 35: ...o pressure regula tor mounting screws Remove the pressure regulatoranddiaphragm Discardallremoved components Ensure the provided diaphragm is installed properly onto the replacement pressure regulator...

Page 36: ...pe joint compounds on flare fittings PILOT OUT VENT LO TH TP TH TP HI IN IN Pilot Stage Terminal Pressure Tap Inlet Pilot Gas Outlet Supply Gas Inlet Pressure Tap Manifold Burner Stage Terminal Ground...

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