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General Notes Regarding Conversion

The conversion may be done before or after the 

appliance is installed into the cavity. However, if the unit 

has been installed, it must be removed from the cavity 

(see below). Also, the gas must be connected to set the 

manifold pressure.

 Prepare the Appliance

1.  Locate gas shut o

  valve and isolate gas supply. 

2.  Remove any installed trims, fronts, and doors.
3.  Remove the window.
4. If the 

fi

 replace is already installed: 

a.  Remove the fuel bed. Be careful with fuel bed 

as components are fra

g

ile.

b.  Remove liner panels.
c.  Disconnect the exhaust slide screws (2 screws 

at top front of unit).

d.  Pull the unit out while disconnectin

g

 the 

exhaust slide. Leave the vents and slider 

han

g

in

g

 in the chimney.

5.  Remove left shroud (2 screws).

6.  Remove the side cover (2 screws at left, 3 at the 

front).

7.  Remove burner cover (2 screws).

Note

Consult your Installation Manual for details on the 

steps in this section.

2

Summary of Contents for G4 780MNGK

Page 1: ...s ONLY INSTALLATION MANUAL G4 Series 4007968 02 2021 Miles Industries Ltd Kit Contents 1 Pilot injector 1 Main burner injector elbow 1 Air shutter 1 Pilot shield 1 Minimum rate bypass screw 1 Set of c...

Page 2: ...led trims fronts and doors 3 Remove the window 4 If the fireplace is already installed a Remove the fuel bed Be careful with fuel bed as components are fragile b Remove liner panels c Disconnect the e...

Page 3: ...Unscrew the nut at the end of the burner fuel supply line and lift the burner and supports out of the fireplace complete with injector elbow at tached 3 Unscrew and disengage the injector elbow Be aw...

Page 4: ...ld not be removed 3 Unscrew the pilot injector using an Allen key Dis card the old pilot injector 4 Replace with the appropriate pilot injector see Specifications table on page 1 the pilot injector nu...

Page 5: ...nection joints that were taken apart and reassembled Bubbles forming indicate a gas leak Bypass screw Valve WARNING NEVER use an open flame to check for leaks Correct any leak detected immediately Set...

Page 6: ...d liners and window installed and evaluating the flame picture after a 15 minute warm up Airshutter open Airshutter closed Fit the Specifications Label 1 Complete the required details of the new label...

Page 7: ...ION S rie G4 Contenu du kit 1 Injecteur de veilleuse 1 Injecteur coude du br leur 1 Obturateur d air 1 cran de veilleuse 1 Vis d indice minimum 1 Ensemble d tiquettes de conversion Outils requis Cl s...

Page 8: ...er est d j install a Enlevez le lit de combustion Faites attention car les pi ces sont fragiles b Enlevez les panneaux int rieurs c D tachez l appareil de sa plaque d vent 2 vis au dessus de la caisse...

Page 9: ...levez les vis retenant le br leur sa plaque 4 vis 2 En soutenant l injecteur coude d vissez l crou retenant la conduite de gaz pour la d brancher Sortez le rail du br leur de la bo te de foyer avec l...

Page 10: ...illeuse pour l enlever 3 Enlevez l injecteur de la veilleuse avec une cl Allen et jetez le 4 Remplacez le avec l injecteur appropri voir le tableau Sp cifications la page 7 Installez le nouvel injecte...

Page 11: ...AIS UTILISER une flamme vive pour v rifier s il y a des fuites Corrigez imm diatement toute fuite d tect e R glez et v rifiez la pression d admission 1 Fixez un manom tre la connexion de v rification...

Page 12: ...le de l avant du foyer m me avec la devanture install e 1 Rep rez le levier d ajustement de l obturateur 2 Ajustez la position de l obturateur D pendamment du lit d alimentation utilis de l altitude e...

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