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ARI* CAPACITY RATINGS (cont)
ELECTRIC RESISTANCE HEATER DATA — 558F180-300
*Maximum number of stages using accessory low-ambient kit or head pressure control device and low-ambient kit.
NOTE:
Heaters are rated at 240, 480, and 600 v. Use the Multiplication Factors table below to determine heater capacity
for your particular voltage.
MULTIPLICATION FACTORS
NOTE:
The following equation converts kW of heat energy to Btuh:
kW x 3.413 = Btuh.
EXAMPLE: 34 kW (at 230 v) heater on 208 v
= 34.0 (.751 mult factor)
= 25.5 kW capacity at 208 v.
UNIT
558F
HEATER kW
HEATER
STAGES
HEAT
PER STAGE
MAXIMUM
STAGES*
MINIMUM
HEATING CFM
Unit Voltages
208 230 460 575 Cfm L/s
180
26 31 30 — 2 50/50 2
3750 177042 52 50 — 2 33/67 3
56 69 73 — 2 50/50 4
210
26 34 32 — 2 50/50 2
5400 254942 56 55 — 2 33/67 3
56 75 80 — 2 50/50 4
240
26 31 30 — 2 50/50 2
5000 236042 52 50 — 2 33/67 3
56 69 73 — 2 50/50 4
300
26 34 32 — 2 50/50 2
7000 330442 56 55 — 2 33/67 3
56 75 80 — 2 50/50 4
HEATER RATING
VOLTAGE
ACTUAL HEATER VOLTAGE
200 208 230 240 380 440 460 480 550 575 600
240
0.694 0.751 0.918 1.000 ———————
480
————0.626 0.840 0.918 1.000 ———
600
————————0.840 0.918 1.000
0TFQ004-012
558F180-300