LF25-045A, Garage Unit Heater, Aluminized Steel, Compact

Cat # : 18C67

Model/Part # : LF25-045A

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Brand
Lennox
Catalog Number
18C67
Model/Part Number
LF25-045A
Minimum Order Quantity
0.0
Base Unit of Measure
Unit(S)
Product Depth
27.5 IN
Product Height
12.5 IN
Product Width
29 IN
Product Voltage
115v 1ph 60 hz
Type
Compact Horizontal Gas Unit Heater
Gross Weight
65 LB
Family
LF25
Heating Capacity
45, 000 Btuh
Efficiency
83.7 AFUE

Product Overview

Lennox LF25-030-105 Low Profile Compact Gas Unit Heaters

Cabinet:

  • Constructed of pre-painted heavy gauge cold rolled steel
  • Hinged, reversible door for easy access
  • Adjustable louvers are furnished on cabinet for control of air flow direction
  • Wiring junction box is conveniently located outside unit cabinet for easy field wiring connections
  • Hanging brackets for suspending unit are furnished for field installation
  • Unit may be rotated 180 degrees (top for bottom) for ease of installation of gas, electrical and flue locations

Tubular Aluminized Steel Heat Exchanger:

  • Tubular heat exchanger is constructed of aluminized steel for superior resistance to corrosion and oxidation
  • Curving design of heat exchanger allows complete exposure of heating surfaces to supply air stream
  • Dimpled tubes with wrinkle bends allow for maximum heat transfer
  • Compact design reduces space requirements in unit cabinet. Heat exchanger has been laboratory life cycle tested

Inshot Burner Assembly:

  • Aluminized steel inshot burners provide efficient trouble free operation
  • 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

Gas Control Valve:

  • 24 volt redundant combination gas control valve combines manual shut off switch (On-Off), automatic electric valve (dual) and gas pressure regulation into a compact combination control

Combustion Air Inducer:

  • Prepurges heat exchanger and safely vents combustion products
  • Operates only during heating cycle
  • Blower motor has ball bearings and is thermally protected

Pressure Switch:

  • Pressure switch prevents unit operation in case of blocked flue outlet

Limit Control(s):

  • Factory installed and accurately located
  • Limit control has fixed temperature setting and protects heating system from abnormal operating conditions

Flame Rollout Switch:

  • Automatic reset switch is factory installed on the top of the burner box

Controls:

  • Combination Direct Spark Ignition/Fan Timer Control Ignition Control
  • Electronic direct spark ignition control provides positive and safe main burner ignition.
  • Spark is intermittent and occurs only when required.
  • Separate electronic flame sensor control assures safe and reliable operation.
  • Should loss of flame occur, flame sensor controls will initiate 5 attempts at re-ignition before locking out unit operation.
  • Control board contains all necessary controls and relays to operate unit.
  • Includes: Fan timer control - fan on 30 seconds (fixed), fan off 150 seconds (fixed), terminal strip for thermostat connections, diagnostic LED for troubleshooting.
  • Direct plug-in wiring harness.
  • 120V/24V transformer furnished as standard