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Ratings for Model FCX are provided in the following table:
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| 8QLWV |
| 3URGXFW5DWLQJ |
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Rated Output |
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| BTUH |
| 76,000 |
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Rated Input |
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| BTUH |
| 81,250 |
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Combustion Chamber Length |
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| Inches |
| 8.98 |
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Combustion Chamber Diameter |
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| Inches |
| 11.5 |
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Combustion Chamber Volume |
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| Cu. Inches |
| 915 |
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Combustion Prod. Circuit Volume |
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| Cu. Inches |
| 3051 |
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Flue Pressure Drop |
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| Inches H2O |
| 0.10 |
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Maximum Heating Service Pressure |
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| Psig |
| 43.5 |
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Max Heating circuit water temperature |
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| Deg. F |
| 176 |
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Water Overheating Safety Thermostat Setting |
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| Deg. F |
| 230 |
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Combustion Prod. Overheating Safety Thermostat Setting |
| Deg. F |
| 248 | |
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Heating Circuit Water Capacity |
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| Gallons |
| 4.23 |
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Primary Water Flow Rate (60/80 deg. C) |
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| Gal/hr |
| 254 |
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Water Pressure Drop (at nominal flow rate) |
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| MCE |
| 1.4 |
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Power Absorbed (with burner, without circulator) |
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| KW |
| 0.22 |
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Packaged Weight |
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| Lb. |
| 267 |
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Ratings are for the boiler when connected to stan- |
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dard option coaxial flue system components. |
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Electrical Power Supply | 115 volts, single phase, 60 Hz |
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Full Load Current |
| 3.0 Amps FLA |
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Max Fuse/ Circuit Breaker Size |
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| 15 Amps |
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Combustion Products | 3.15 / 4.92 | Inch |
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Water Heating Supply/Return | 1 | Inch |
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Domestic Hot Water or Second Heating Circuit | 1 | Inch |
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Condensate Drain | 1 | Inch |
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Heating Water Drain | ½ | Inch |
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Air Bleed | 3/8 | Inch |
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Safety pressure relief valve | 3/4 | inch |
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