G34 Internal Mid Efficiency Gas Furnace
Multipositional furnace suitable for upflow, downflow or horizontal applications.
Lennox add-on evaporator coils, electronic air cleaners and power humidifiers can be easily added to the furnace.
Units are shipped factory assembled with all controls installed and wired.
All units are factory run tested to ensure dependable operation.
Crimp-Tite ™ Aluminised Steel Heat Exchanger
Aluminised steel construction ensures superior resistance to corrosion and oxidation. This compact design allows complete exposure of heating surfaces to supply air stream. The compact design reduces space requirements in unit cabinet.
Induced Draft Combustion Blower
Induced draft blower pre-purges heat exchanger and safely vents flue products with negative pressure, relative to air stream
pressure, assuring maximum safety. The Induced draft blower operates only during heating cycle.
Burner venturi mixes air and gas in correct proportion for proper combustion.
Burner assembly is removable from the unit as a single component for ease of service and each burner may be removed individually.
Gas Control Valve
24 volt redundant combination single stage gas control valve combines a manual main shutoff valve, pressure regulation and
automatic electric valve into one compact combination control.
Direct Spark Ignition
Solid-state electronic direct spark ignition control provides positive and safe main burner ignition. The spark is intermittent and occurs only when required.
Constructed of heavy gauge, cold rolled steel with a primed and pre-painted topcoat finish. The cabinet surface temperatures are low due to foil faced fibreglass insulation on side and back panels of heat section.
Factory installed and accurately located limit controls provide protection from abnormal operating conditions.
Direct Drive Blower
Quiet multi-speed direct drive blower.
Furnace Control Centre Board
Furnished and factory installed near access door. The solid- state board contains all necessary controls and relays to operate blower, gas valve, combustion air blower and ignition.
Flame Rollout Switches
Manual reset switch is furnished as standard and is factory installed on the burner box. Switch prevents unit operation in the
event combustion products’ passage through the flueway is reduced or blocked.
24 volt (40VA) control transformer is furnished as standard equipment and is factory installed on control panel.
LPG/Propane Conversion Kit (Optional)
For propane models a conversion kit is required for field changeover from natural gas.
Kit is not furnished and must be ordered extra. Contact your Lennox Dealer for order number.
Heating thermostat is not furnished and must be ordered extra. Contact your Lennox Dealer for order number.
For all season applications, heating and cooling thermostat is also available with or without automatic programming features.
Evaporator Coils (Optional)
Cooling Coils are available for field installation in supply air duct.
Lennox Humidifier range is fully compatible and is available for attachment.
Electronic Air Filter (Optional)
Lennox Electronic air filters are fully compatible and are available for attachment.