Montigo R320 Installation & Maintenance Manual Download Page 4

Installation and repairs should be done by an authorized gas fireplace service technician. 

The appliance should be inspected before use and at least annually by a professional. More 

frequent cleaning may be required due to excessive lint from carpeting, bedding material, 

etc. It is imperative that control compartments, burners and circulating air passageways of 

the fireplace are kept clean.

NOTICE

IMPORTANT MESSAGE: SAVE THESE INSTRUCTIONS

The 

R320* & R420* 

Power Vent fireplaces must be installed 

in accordance with these Instructions. Carefully read all the 

instructions in this manual first. Consult the Local Gas Branch to 

determine the need for a permit prior to starting the installation. 

It is the responsibility of the installer to ensure this fireplace is 

installed in compliance with the manufacturers instructions and 

all applicable codes.

BEFORE YOU START:

Installation Checklist

 

■  Determine the desired install location of your fireplace.

 

■   See Section 1, Dimensions and refer to the Framing 

Section 2 for details. 

 

■   Select  your  type  and  location  of  your  Power  Vent 

run:  Roof  Mounted  (PVVEX58-300),  External  Wall 

Mounted (PVHEX58-300), Flush Louver Wall Mounted 

(PVHFL58-300). Inline Power Vent (PVHIN58-300) with 

flush louvered termination (TMHIN58-40).

 

■   Your termination location should be selected to provide 

the most efficient vent run.

 

■   Lay out the Vent run; calculating the required elbows 

and straight runs of 5"/8" flex and/or rigid pipe.

 

■   Refer to the Section 3, "Venting" for details.

 

■   Montigo supplies 20' of low voltage wire, which can be 

spliced to a maximum of 100' with wire of equal quality. 

This wire CANNOT run in conduit with any other wire.

 

■   Refer to Section 4, for Wiring Details.

 

■   The gas connection is located on the bottom right side 

(pilot burner side) of the fireplace.

 

■   Refer  to  local  codes  and  guidelines  for  installation 

requirements.

 

■  Refer to Section 5, "Installing the Gas Line" for details.

 

■   Installation and repairs should be done by a qualified 

contractor and must conform to:

 

  • 

Installations in Canada

 must conform to the local 

codes or in the absence of local codes to the current version 

of  Natural  Gas  and  Propane  Installation  Code,  CSA  B149. 

Electrical Installations must conform to the local codes or, in 

the absence of local codes, to the current version of Canadian 

Electrical Code, CSA C22.1.1

 

• 

Installations in the USA 

must conform to the local 

codes or in the absence of local codes to the current version 

of National Fuel Gas Code, ANSI Z223.1/NFPA 54. Electrical 

Installations must conform to the local codes or, in the absence 

of local codes, to the current version of the National Electrical 

Code, ANSI/NFPA 70.  See 

Appendix C

 for installation within 

the State of Massachusetts.

Due to high operating temperatures, this appliance should  be located out of traffic & 

away from furniture and draperies.

Children and adults should be alerted to the hazards of the high surface temperature, 

which could cause burns or clothing ignition.

Young children should be carefully supervised when they are in the same room as the 

appliance.

Clothing or other flammable materials should not be placed on or near the appliance.

CAUTION

When this appliance is installed directly on any combustible material other than wood 

flooring, it must be installed on a metal or wood panel extending the full width and 

depth of the appliance or a fire will occur causing serious injury,  property damage or 

even death.

DANGER

Young children should be carefully supervised when they are 

in the same room as the applicance. Toddlers, young children 

and others may be susceptible to accidental contact burns.  A 

physical barrier is recommended if there are at risk individuals 

in the house.  To restrict access to a fireplace or stove, install 

an adjustable safety gate to keep toddles, young children and 

other at risk individuals out of the room and away from hot 

surfaces.

CAUTION

R320 & R420  Power Vent Indoor Gas Fireplace

Page 4

XG0770 - 100614

Section A: Before You Begin 

Installation

Summary of Contents for R320

Page 1: ...ter Entrapment hazard Battery hazard Rotating parts Low temperature Strong magnetic field Optical radiation Non ionizing radiation Radiation Hazardous to the Environment Danger of harming your hands Irritant Cutting Watch your step Slippery floor High temperatures Glass hazard Danger of suffocation High voltage Toxic Flammable materials Corrosive Fork lift trucks Danger overhead crane Explosion ri...

Page 2: ... Mounted Power Vent 18 Section 3 4 Venting components 19 Section 3 5 Heat Shields 20 Section 4 Wiring 21 Installing the Fireplace Control Box 21 Installation of Electrical Supply 22 Installing the Remote Switch 22 Section 5 Installing the gas line 24 Section 6 Testing the system 25 Section 7 Finishing the fireplace 26 Finishing Around the Fireplace 27 Mantels Surrounds 27 Section 8 Removing Instal...

Page 3: ...bility for the following actions Modification of the fireplace and or components including Direct Vent assembly or glass doors Use of any component part not manufactured or approved by Montigo in combination with this Montigo fireplace system Installation other than as instructed in this manual ConsultyourlocalGasInspectionBranchoninstallationrequirements for factory built gas fireplaces Installat...

Page 4: ...details Installation and repairs should be done by a qualified contractor and must conform to Installations in Canada must conform to the local codes or in the absence of local codes to the current version of Natural Gas and Propane Installation Code CSA B149 Electrical Installations must conform to the local codes or in the absence of local codes to the current version of Canadian Electrical Code...

Page 5: ...on Basic Operation Thegascontrolcomponentsofthisfireplacearelocatedinthebottom of the firebox below the burner system All models are supplied with a Honeywell smart valve gas control and do NOT have a variable flame control There are two air switches that control the gas control system located in the bottom of the firebox These gas valves and pressure switches communicate with the electrical contr...

Page 6: ...sions Tolerance 48 11 16 38 1 16 16 10 13 16 19 3 4 37 1 8 12 3 8 16 1 8 OD 15 3 16 8 3 16 5 7 16 5 7 8 4 7 8 7 7 8 31 15 16 Gas Inlet Combustion Air Switch Sensor Line 37 1 4 OD 9 1 2 41 9 16 24 5 16 Installation R320 R420 Power Vent Indoor Gas Fireplace Page 6 XG0770 100614 Installation ...

Page 7: ...Top View 4 7 8 7 7 8 15 3 16 5 7 16 5 7 8 8 3 16 12 3 8 16 1 8 OD 31 15 16 Gas Inlet Combustion Air Switch Sensor Line 53 9 16 49 1 4 OD 9 1 2 30 5 16 16 60 11 16 38 1 16 49 1 8 10 13 16 19 3 4 R320 R420 Power Vent Indoor Gas Fireplace Page 7 XG0770 100614 Installation ...

Page 8: ...ear Vent Sides Floor Mantel Top Top Vent Note Clearance from top of fireplace to a combustible ceiling within the fireplace enclosure Unprotectedcombustiblewallswhichareperpendiculartothefireplace opening must maintain 6 clearance see figure 20 Figure 2 Clearances for rear vented installation with elbow Figure 2a Clearances for top or rear vented installation straight vent run or with elbow s Vent...

Page 9: ...rm See Figure 1 or 1a U is 29 for straight out the back vent run installations Raised Installation Maximum Platform Height Minimum Required Ceiling Height 24 8 48 10 Figure 2b Clearances for straight rear vented installation with PVHEX58 300 24 610 38 3 4 983 18 1 4 463 PVHFL58 300 Stud Wall Rear Fireplace Floor Header Termination Mounting Flange 24 610 34 863 8 203 PVHEX58 300 Stud Wall Rear Fire...

Page 10: ...ore fastening in place line up the front face of the fireplace top and bottom Figure 4 Then secure in place with 1 4 bolts and washers to the platform Figure 4 Fireplace installation Inlet Gas Power Vent Installing the Fireplace 1 2 Supply Gas connection Intake Exhaust Vent Pipe 5 8 2 Clearance 2 Clearance R320 R420 Power Vent Indoor Gas Fireplace Page 10 XG0770 100614 Installation ...

Page 11: ...e horizontal piece Step 3 Cut and install four vertical 2x4 s Place 2 on each side of the fireplace throat Step 4 Install supplied steel header 1 above the throat Attach steel header to vertical 2x4 s as shown in figure 5 Step 5 Cut and install one horizontal 2x4 below the top frame 1 clearance 1 clearance Model Supplied Steel Header Measurements R320 46 1 2 x 3 R420 58 1 2 x 3 Steel header suppli...

Page 12: ...um clearance can be reduced to 3 for uncarpeted flooring Discolouration may occur due to high temperatures Figure 6 Recessed Fireplace installation 6 clearance 1 clearance Recessed Floor Steel header supplied by Montigo 2 pcs 2 x 4 vertical Both Sides Typ 1 clearance 1 clearance 2 x 4 horizontal 2 x 4 Vertical 1 clearance 1 clearance 2 x 4 horizontal R320 R420 Power Vent Indoor Gas Fireplace Page ...

Page 13: ...wer Vent Designated Venting originates from the top or rear of the unit Venting can terminate through the roof or exterior wall Foradetaileddiagramofallowedterminationlocations see Appendix A Once the termination location has been established refer to the appropriate section for installation details All fireplaces are shipped Top Vent from the factory Ensure there is a minimum vent run of 2 of str...

Page 14: ...must be removed and replaced with supplied Rear Vent pressure sensing tube and air baffle must be relocated as described below 1 Remove two screws from the air baffle installed over the Top Vent from inside the firebox Once air baffle is removed replace the two screws back into the same position Note Not all models are equipped with an air baffle Only convert if available 2 Remove Top Vent pressur...

Page 15: ...re the planned Power vent location is acceptable Refer to the table below for vent run requirements Section 3 2 Installing a Roof Mounted Vent System Vent Configuration Refer to Figure Maximum Vent Run Horizontal Vertical Maximum Elbows Straight Vertical Top or Rear Vent Figure 10 100 Feet Six 90 or equivalent Multi Elbow Top or Rear Vent Figure 10a Multi Elbow with 6 downward vent run Top or Rear...

Page 16: ...unted power vent Note See Power Vent manual for installation instructions Note See Appendix A for clearance to exterior structures R320 R420 Power Vent Indoor Gas Fireplace Page 16 XG0770 100614 Installation D D Section 3 2 1 Installing Roof Mounted Power Vent PVVEX58 300 ...

Page 17: ... runisthroughthewall RefertoAppendixA PowerVentlocations to ensure the planned Power vent location is acceptable Refer to the table below for vent run requirements Section 3 3 Installing a Wall Mounted Vent System Vent Configuration Refer to Figure Maximum Vent Run Horizontal Vertical Maximum Elbows Straight Horizontal Top or Rear Vent Figure 12 100 Feet Six 90 or equivalent Multi Elbow Top or Rea...

Page 18: ...Power Vent manual for installation instructions Note See Appendix A for clearance to exterior structures Section 3 3 1 Installing Wall Mounted Power Vent PVHEX58 300 and Flush Louvered Wall Mounted Power Vent PVHFL58 300 R320 R420 Power Vent Indoor Gas Fireplace Page 18 XG0770 100614 Installation D ...

Page 19: ...ners and joints be sealed with exterior caulking However we encourage you to consult your Building Envelope Engineer or Waterproofing Consultant for further recommendations Use any combination of rigid and flex pipe as required and in any orientation Male connectors can face in any direction Flex sections may be stretched up to 50 of their total length e g a 24 section maybe stretched to 36 Ensure...

Page 20: ...lace with a minimum of three sheet metal screws From the outside slide the RHS101 outer section on To complete the installation fasten the Heat Shield Outer Section inner section to the structure See Figure 14 Figure 14 RHS101 Installation Install by sliding over vent pipe where it passes through the combustible construction Outer Shield 10 1 4 3 8 Min Both sides Typical 3 8 Min 3 8 Min Combustibl...

Page 21: ... the Fireplace Control Box in an accessible location The location should be where maintenance adjustments and service may be made easily Control Box Horizontal Power Vent Termination Vertical Power Vent Termination Power cable Installatio n required for either Horizontal or Vertical Termination Vent 115Vac 60 Hz supply from Distribution Panel Wall Switch Power Vent 20 foot control cable to firepla...

Page 22: ...uality InstallationsinCanadamustbeelectricallygroundedinaccordance withCSAC22 1CanadianElectricalCodePart1and orLocalCodes InstallationsintheUSAmustbeelectricallygroundedinaccordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 Installation of Electrical Supply The R320 R420 is supplied with an external electrical control panel pre wired by the f...

Page 23: ...Harness Connector Honeywell Gas Control SV9501M Gas Control onnector Conduit Wiring clearances 1 Clearance Note If any of the original wire supplied with the appliance is replaced it must be with the same or its equivalent Connect the power vent power cord as outlined in the previous section Ensure that the proper clearances are maintained for the wiring and conduit When installing the wiring it m...

Page 24: ...state province or other governing body in which the fireplace is being installed GAS CONNECTION See Figure 16 below for location of gas line access Flexible gas connectors must not exceed 3 feet in length unless allowable within local regulations Connect incoming gas line to the 1 2 Male NPT gas inlet Purge all air out of gas line before connecting port Check appliance connection valve and valve t...

Page 25: ...framing the Fireplace This test can be done quickly and efficiently to ensure all systems function according to the design specifications Thefireplaceshouldbeinstalledontherough inframe Figure3with the Power Vent Module and the Vent run connected Section 6 Testing the system 6 1 Testing the system before gas connection If the red LED is illuminated beside the fuse you have power to the panel If no...

Page 26: ...lied by Montigo Non Combustible cement board supplied by Montigo or Equiv Pre drill for Nail fasteners Combustible framing Sheet metal Screws to attach Non Combustible cement board to Steel header 1 8 Clearance required for expansion of the fireplace when in operation Section 7 Finishing the fireplace Wall board Gyproc or Equiv Bottom Sides Cut standard Gyproc Drywall board to complete the install...

Page 27: ...lwillriseabovenormal room temperature and walls above fireplace may be hot to touch We recommend careful consideration be given to the effects of elevated mantel temperatures which may be in excess of product design for example candles plastic or pictures This can cause melting deformation discoloration or premature failure of T V and radio components Side wall clearances are 6 Combustible surroun...

Page 28: ...the four previous steps to re install the R Series fireplace door Step 1 Remove glass suction cups from box and place on Glass door The tool may not be exactly as shown Step 2 Place the suction cups on the glass door spaced evenly Ensure they are firmly attached and secured Step 3 Lifting the glass panel Hold the Tools firmly and lift the glass panel up and out of the lower track Into the upper tr...

Page 29: ...ropane gas fireplace with designer glass Firestones surrounding burner tray Optional River Rocks The R320 R420 has the option of installing the cultured rocks which mimic real stone These may be spaced at random or in a visual pattern of your preference See the Montigo web site for photographs and ideas www montigo com Do not operate this fireplace without the glass door or with a broken glass doo...

Page 30: ...ot use any phone in your building Immediately call your gas supplier from a neighbour s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the Fire Department C Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control whic...

Page 31: ...e coatings on new metal Glass must be cleaned periodically to remove any film which is a normal by product of combustion which may be visible Film can easily be removed by removing the door as shown on Page 29 Handle the door carefully and clean it with non abrasive non ammonia based glass cleaners One of the most effective products is Kel Kem Siliconesealsoninnerdoorduringinitialfiringwill offgas...

Page 32: ...tructionsonthisterminationseeinstructionguide for the PVVEX58 300 PVVEX58 300 Vertical Power Vent Detail Front View Not Acceptable Side View Front View Top View 24 24 Wall Wall 18 40 1016 mm 18 Min Wall 24 610 mm 610 mm 610 mm 457 mm Figure 24 PVVEX58 300 Figure 24a PVVEX58 300 clearances Figure 24b PVVEX58 300 restrictions ...

Page 33: ...J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance 6in 15 cm for appliances 10 000 Btuh 3 kW 12 in 30 cm for appliances 10 000 Btuh 3 kW and 100 000 Btuh 30 kW 36 in 91 cm for appliances 100 000 Btuh 30 kW Canadian Installations US Installations 1 2 6in 15 cm for appliances 10 000 Btuh 3 kW 9 in 23 cm for appliances 10 000 Btuh 3 kW and 50 ...

Page 34: ...dix Forinstallationinstructionsonthisterminationseeinstructionguide for the PVHEX58 300 PVHEX58 300 Horizontal Power Vent Detail Eaves Overhang Wal l 14 355mm 32 813mm 16 6 6 Side View 152mm 152mm 406mm Figure 25 PVHEX58 300 Figure 25a PVHEX58 300 Termination Clearances ...

Page 35: ...ervice regulator vent outlet 3 ft 91 cm J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance 6in 15 cm for appliances 10 000 Btuh 3 kW 12 in 30 cm for appliances 10 000 Btuh 3 kW and 100 000 Btuh 30 kW 36 in 91 cm for appliances 100 000 Btuh 30 kW Canadian Installations US Installations 1 2 6in 15 cm for appliances 10 000 Btuh 3 kW 9 in 23 cm...

Page 36: ...ix PVHFL58 300 Horizontal Power Vent Detail Front View Eaves Overhang Wall 24 610mm 24 15 15 24 610mm 152mm 152mm 622mm Forinstallationinstructionsonthisterminationseeinstructionguide for the PVHFL58 300 Figure 26 PVHFL58 300 Figure 26a PVHFL58 300 Termination Clearances ...

Page 37: ...o service regulator vent outlet 3 ft 91 cm J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance 6in 15 cm for appliances 10 000 Btuh 3 kW 12 in 30 cm for appliances 10 000 Btuh 3 kW and 100 000 Btuh 30 kW 36 in 91 cm for appliances 100 000 Btuh 30 kW Canadian Installations US Installations 1 2 6in 15 cm for appliances 10 000 Btuh 3 kW 9 in 23...

Page 38: ...614 Appendix PVHIN58 300 Inline Power Vent with TMHIN58 40 Detail Forinstallationinstructionsonthispowerventandterminationseeinstructionguide for the PVHIN58 300 with TMHIN58 40 Figure 27 PVHIN58 300 Inline power vent with TMHIN58 40 Termination with vanity ring Figure 27a TMHIN58 40 Termination Clearances without vanity ring 20 3 4 527 13 330 6 153 1 26 14 356 Eaves Overhang Wall ...

Page 39: ...service regulator vent outlet 3 ft 91 cm J Clearance to nonmechanical air supply inlet to building or the combustion air inlet to any other appliance 6in 15 cm for appliances 10 000 Btuh 3 kW 12 in 30 cm for appliances 10 000 Btuh 3 kW and 100 000 Btuh 30 kW 36 in 91 cm for appliances 100 000 Btuh 30 kW Canadian Installations US Installations 1 2 6in 15 cm for appliances 10 000 Btuh 3 kW 9 in 23 c...

Page 40: ... are designed to burn gas only Burning conventional fireplace fuels such as wood coal or any other solid fuel will cause damage to the Gas Appliance will produce excessive temperatures and will result in a fire hazard Limitations On Liability It is expressly agreed and understood that The Companies sole obligation and purchaser s exclusive remedy under this Warranty under any other warranty expres...

Page 41: ...vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless upon inspection the inspector observes carbon monoxide detectors and signage ...

Page 42: ...XG0770 100614 R320 R420 Single Sided Gas Fireplace ...

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