Ultra Series 3 Gas Boiler
Ultra Series 3 delivers peace of mind, unmatched comfort and immediate payback in energy savings.
Models
UG-80, UG-105, UG-155, UG-230, UG-310Key Features
- Gas fired water boiler with cast aluminum heat exchanger
- Venturi mixing body mixes air and gas providing higher efficiency
- Designed to operate in low temperature condensing applications
- Outdoor reset and domestic hot water priority standard
- Negative regulated gas valve precisely delivers gas to the boiler
- U-Control gives you the power for easy set-up and maintenance
- Modulates with 5 to 1 turn-down ratio
- Variable speed motor matches combustion output to heating needs
- High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications
- Ultra 310 93.3% efficient rating is a gross output and combustion efficiency
Efficiency Rating Chart
| Model | A.G.A. Input (MBH) | DOE Heating Capacity (MBH) | Net I=B=R Ratings (MBH) | Min. Vent Size | Annual Fuel Utilization Efficiency (AFUE) |
|---|---|---|---|---|---|
| UG-80 | 80 | 71 | 62 | 2 in. PVC/ABS | 93% |
| UG-105 | 105 | 94 | 81 | 2 in. PVC/ABS | 92% |
| UG-155 | 155 | 139 | 123 | 3 in. PVC/ABS | 93% |
| UG-230 | 230 | 207 | 183 | 3 in. PVC/ABS | 92.8% |
| UG-310 | 310 | 289 | 252 | 4 in. PVC/ABS | 93.3% |
Ultra Presentation
Product Manuals and Literature
- Brochure
(42.99 MB) - Boiler Manual
(31.18 MB)
- User Manual
(3.04 MB)
Resources
- Easy-up Manifold
(924.8 KB)
Architects/Engineers
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