Boiler Specifications
Comprehensive technical specifications for boiler systems.
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Performance Ratings
- AFUE Rating: 80-98%
- Heat Output: 40-300 MBH
- Operating Press: 12-30 PSI
- Water Temp: 140-180°F
- Steam Press: 0.5-15 PSI
- Thermal Efficiency: 85-95%
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System Components
- Heat Exchanger: SS316L
- Burner Type: Modulating
- Control: PID Logic
- Pump Head: 20-50 ft
- Flow Rate: 4-12 GPM
- Venting: Category IV
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Safety Features
- LWCO: Dual Probe
- Relief Valve: ASME
- Flame Safeguard: UV
- High Limit: Manual Reset
- Flow Switch: Paddle
- Gas Valve: Dual
Load Calculations
Critical specifications for system sizing:
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Heat Loss Factors
- Wall Factor: 0.2-0.4 BTU/ft²
- Window Loss: 1.0-2.0 BTU/ft²
- Roof Loss: 0.05-0.15 BTU/ft²
- Air Changes: 0.5-1.0 ACH
- Infiltration: 0.2-0.4 ACH
- Design Temp: -10 to 20°F
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System Design
- Pickup Factor: 1.15-1.3
- Diversity: 0.65-0.85
- Piping Loss: 10-15%
- EDR/Sq.Ft: 150-250
- GPM/MBH: 1.5-2.0
- Head Loss: 4 ft/100ft
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Zone Control
- Delta T: 20°F
- Min Flow: 0.5 GPM
- Max Velocity: 4 ft/s
- Circuit Length: 300 ft
- Zone Size: 250-500 ft²
- Response Time: 3-5 min
Operation Parameters
Key specifications for system operation:
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Control Settings
- Reset Ratio: 1:1.5
- Differential: 5-10°F
- Cycle Rate: 6/hour
- Night Setback: 10°F
- Lead/Lag: 100 hrs
- Min Runtime: 5 min
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Water Quality
- pH Level: 7.5-8.5
- TDS: <350 ppm
- Hardness: <7 grain
- Chlorides: <50 ppm
- Iron: <0.3 ppm
- Oxygen: <0.1 ppm
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Maintenance Specs
- Service Interval: 2000 hrs
- Combustion Test: Monthly
- Water Test: Quarterly
- Cleanout: Annual
- Parts Life: 15-20 yrs
- Efficiency Drop: 1%/yr