Filter
Top Products
15
HEATING CAPACITIES AND EFFICIENCIES — 581C024-060 (cont)
208/230/460-3-60 — SINGLE-STAGE GAS HEAT — LOW NOx
208/230/460/575-3-60 — 2-STAGE GAS HEAT
AFUE — Annual Fuel Utilization Efficiency
NOTE: Capacities for stainless steel heat exchanger units (S/R/T) are the same
as standard units (D/E/F).
UNIT INPUT CAPACITY OUTPUT CAPACITY TEMPERATURE MINIMUM HEATING EFFICIENCY
581C 1st Stage 2nd Stage 1st Stage 2nd Stage RISE (°F) AIRFLOW (CFM) AFUE (%) Steady State (%)
036060N 60,000 — 50,000 — 20-50 930 80.20 81
036090N 90,000 — 74,000 — 30-60 1150 81.00 81
048060N 60,000 — 50,000 — 20-50 930 80.20 81
048090N 90,000 — 74,000 — 30-60 1150 81.00 81
048120N 120,000 — 101,000 — 40-70 1340 80.70 82
060060N 60,000 — 50,000 — 20-50 930 80.20 81
060090N 90,000 — 74,000 — 30-60 1150 81.00 81
060120N 120,000 — 101,000 — 40-70 1340 80.70 82
UNIT INPUT CAPACITY OUTPUT CAPACITY TEMPERATURE MINIMUM HEATING EFFICIENCY
581C 1st Stage 2nd Stage
1st
Stage
2nd Stage RISE (°F) AIRFLOW (CFM) AFUE (%) Steady State (%)
036072 50,000 72,000 41,000 59,040 25-55 1004 82.80 82
036115 82,000 115,000 65,600 93,150 55-85 1002 80.00 80
048072 50,000 72,000 41,000 59,040 25-55 1094 82.80 82
048115 82,000 115,000 66,420 93,150 35-65 1330 81.00 81
048150 120,000 150,000 96,000 120,000 50-80 1390 80.40 80
060072 50,000 72,000 41,000 59,040 25-55 1004 82.80 82
060115 82,000 115,000 66,420 93,150 35-65 1330 81.00 81
060150 120,000 150,000 96,000 120,000 50-80 1370 80.40 80