Montigo R320-ST - Manual (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-ST & R420-ST 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:
Pre-Installation Checklist
■ Determine the desired install location of your fireplace.
■ See Section 1, Dimensions on Page 5, 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 (TMHIN48-40).
■ Your termination location should be selected to provide
the shortest possible 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 4 on Page 10, "Installing the Power
Vent" for details.
■ Montigo supplies 20' of low voltage wire, which can be
spliced to any length. This wire CANNOT run in conduit
with any other wire.
■ Refer to Section 5 on Page 18, for Wiring Details.
■ The gas connection is located on the bottom side of the
fireplace.
■ Refer to local codes and guidelines for installation
requirements.
■ Installation and repairs should be done by a qualified
contractor and must conform to:
•InstallationsinCanada must conform to the current
CAN/CGA B-149.1 and .2 Gas Installation Code and
local regulations.
•InstallationsintheUSA must conform to local
codes, or in the absence of local codes to the National
Fuel Gas Code, ANSI Z223.1-1988.
•SeeAppendixCforinstallationwithintheState
ofMassachusetts. This fireplace must comply with
NFPA-54 Chapter 10.
■ Refer to Section 6 Page 21, "Installing the Gas Line" for
Details.
Understanding the Basic Operation
Residential R320-ST & R420-ST fireplace
The control compartment of this fireplace is located in the bottom
of the fireplace right below the burner system. All models will
be supplied with a Honeywell smart valve gas control and will
not have a variable flame control. There are two air switches
that are controlling the gas control system, and are located in
the bottom of this fireplace. These gas valves, and pressure
switches communicate with the electrical control panel via a six
conductor cable supplied with the fireplace.
To operate the fireplace, Montigo has supplied and installed
twenty feet of low voltage wire to this electrical control panel.
Connect the two wire harness to a standard single pole ON/
Off switch located at a location of your choice. You may also
extent these wires to any length, as long as you select a wire
of equal quality.
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
WARNING
A barrier designed to reduce the risk of burns from hot viewing glass is provided with this
appliance and shall be installed for the protection of children and other at-risk individuals.
If the barrier becomes damaged, the barrier shall be replaced with the manufacturer’s
barrier for this appliance.
WARNING
Any safety screen, guard, or barrier removed for servicing an appliance must be replaced
prior to operating the appliance.
R320-ST & R420-ST Power Vent Indoor Gas Fireplace
Page 4
XG0774 - 150121
Section A: Before You Begin
Installation