Carrier Owners Manual - Enlarge page 1 of 12
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From inside (document excerpt):
Product Data ® 58BLA, 58BMA, and 58BTA Oil-Fired Furnaces 58BLA Low-Boy IN D EP EN DENT LAB OR OR AT AN Y IN G FOR P U B LI C SA ama 58BMA 3-Way Multipoise 58BTA Upflow/Horizontal 1996 Carrier Corporation FE TY ® TE ST Form 58B-6PD Model number nomenclature 58B Oil-Fired Furnace L A 105 12 Airflow (400 CFM per ton) 12 — 3 ton 16 — 4 ton 20 — 5 ton Furnace Orientation L — Low-Boy M — 3-Way Multipoise T — Upflow/Horizontal Series A — Original Input 075 — 105 — 125 — 155 — 210 — 172,000 Btuh 105,000 Btuh 125,000 Btuh 154,000 Btuh 210,000 Btuh Typical oil furnace components 1 2 6 7 3 8 4 5 A96337 1 2 3 4 Aluminized Heat Exchangers (Inside) Alumina-Silica Fiber Combustion Chamber (Inside) Beckett Oil Burner Electronic Control Center 5 6 7 8 Blower and PSC Motor Cleanout Ports (Not on 58BTA model) Safety Sensor and Control Inspection Port 2 58BLA This line of furnaces provides the latest technology in oil furnaces.
The 58BLA Furnace is designed for top performance to provide years of reliable, comfortable home heating. The 58BLA is a Low-Boy style oil furnace that can be installed in limited overhead areas for greater application coverage. All sizes achieve a minimum of 80.5% Annual Fuel Utilization Efficiency (AFUE). The heat exchanger is backed by a Limited Lifetime Warranty. FEATURES Low-Boy Cabinet Style — The 58BLA allows easy installation in low overhead areas such as crawlspaces and sub-basements. Aluminized Heat Exchanger — The primary and secondary heat exchangers are constructed of aluminized steel for outstanding reliability and backed by a Limited Lifetime Warranty. The heat exchangers utilize crimped seams instead of welds for corrosion resistance. All internal surfaces are accessible for any field maintenance without removing the heat exchanger. Cleanout Ports– Allow easy cleaning of secondary heat exchanger tubes without disassembly of the furnace or heat exchanger. Controls — The Beckett oil burner is equipped with an electronic primary relay for added reliability. Integrated fan timer control board with low-voltage terminal strip and 40-va transformer make air conditioning installation easy. Heavy Duty Blower — Blower motors are PSC type and 3 speed. The direct-drive blowers eliminate belt adjustments in the field. The constant lowspeed blower option provides air circulation during “off ” cycles for indoor air filtration. Durable Cabinet — The casing is constructed of prepainted steel for years of attractiveness.