ecoFIT sustain 15, 18 and 30kW
Specification System boiler range
- Designed for specification in the new build and social housing market
- Compact cupboard fit with rear flue option
- High efficiency ErP 'A' rated product with strong SAP ratings
- Compatible with the full range of Vaillant controls and accessories
- High quality lightweight aluminium heat exchanger with excellent power to weight ratio
Overview
System Boiler Range
The ecoFIT sustain range of combination boilers offers an excellent size-to-output ratio, providing great comfort whilst ensuring a small footprint. Use of sustainable materials also means the boiler is 100% recyclable. The range features 25, 30 and 35kW models to suit all types of homeowner and tenant properties.
Key features and benefits
• Compact, cupboard fit solution – A smaller boiler footprint (702mm x 390mm x 295mm) means the ecoFIT Sustain offers siting flexibility, including cupboard fit
• Top and rear flue options - For flexible siting options in a wide variety of properties
• High SAP performance - Helps reduce new build cost. Highly efficient and economical to run up to an 89.3% efficiency rating (SAP 2009)
• High-quality lightweight aluminium heat exchanger - Lightweight, compact design offers long life with an excellent power-to-weight ratio makes installs/maintenance easier
• Patented 4 sided cooling - Reduces stress on all components to minimise the cost of maintenance over the life of the product
• Familiar Vaillant diagnostics - Offers quick and easy maintenance for your maintenance team
• Patented condensate trap - Easy install with a safety back-up
• Fully modulating low NOx burner and fan - For improved energy efficiency
• Recognised Grundfos high-efficiency pump - Modulating high-torque pump uses low energy to deliver a balanced output to meet the boiler demand helping to reduce energy consumption
• Built-in two-stage frost protection - To ensure optimal performance all year round
• Warm start function - Provides tenants with instant hot water
• Modulation range up to a 1:5 - Ensuring low energy consumption and maximum efficiency
• Clear bright LCD display - Easy to read boiler wherever it is sited
• Up to 10m flue lengths - Allows maximum flexibility for location of the boiler
• Controls compatibility - The wide range of Vaillant room thermostats, wired & wireless controls including the vSMART™ app-based controls with weather compensation to lower running costs for tenants
• Quiet Mark accredited - Thanks to being ultra-quiet whilst in operation
• ErP 'A' Rated product - Suitable for both refurbishment and new build with lower running cost to reduce heating bills
Specifications
Specifications
| Technical data | Unit of measure | ecoFIT sustain 615 | ecoFIT sustain 618 | ecoFIT sustain 630 |
|---|---|---|---|---|
| General | ||||
| Boiler type | system | system | system | |
| Signature model output | 15kW | 18kW | 30kW | |
| Article number | 0010025271 | 0010025272 | 0010025273 | |
| Gas Council number | 41-694-30 | 41-694-31 | 41-694-32 | |
| Boiler dimensions (HxWxD) | mm | 702 x 390 x 295 | 702 x 390 x 295 | 702 x 390 x 295 |
| Heating | ||||
| Nominal heat output range at 50/30˚C (Condensing mode) | kW | 4.7 - 15.9 | 5.2 - 19.1 | 7.5 - 31.8 |
| Nominal heat output range at 80/60˚C (Non condensing mode) | kW | 4.5 - 15.2 | 5 - 18.3 | 7.2 - 30.5 |
| Maximum flow temperature | ˚C | 80 | 80 | 80 |
| Flow temperature range | ˚C | 10 - 80 | 10 - 80 | 10 - 80 |
| Flow temperature factory setting | ˚C | 75 | 75 | 75 |
| Approximate condensate volume at 50/30˚C | litres/hr | 1.53 | 1.84 | 3.06 |
| Modulation (max/min) | 1 : X | 1:4 | 1:5 | 1:4.9 |
| Domestic Hot Water | ||||
| Maximum heat output for water generation | kW | 18 | 25.2 | 35 |
| Lowest water pressure to operate boiler | bar | 0.3 | 0.3 | 0.3 |
| Lowest water flow for operation | l/min | - | - | - |
| Lowest water pressure for maximum flow rate | bar | - | - | - |
| Domestic hot water flow rate (at DT = Δ35K) * | l/min | - | - | - |
| Domestic hot water flow rate (at DT = Δ42K) | l/min | - | - | - |
| Hot water output temperature range | ˚C | - | - | - |
| Mechanical | ||||
| Expansion vessel size | litres | 8 | 8 | 8 |
| Gas inlet connection (pipe size) | mm | 15 | 15 | 15 |
| Heating flow and return connections (pipe size) | mm | 22 | 22 | 22 |
| Hot and cold water connections (pipe size) | mm | - | - | - |
| Heat exchanger material | Stainless/ Aluminium | Aluminium | Aluminium | Aluminium |
| Boiler lift weight (Dry boiler) | kg | 31 | 31 | 32 |
| Performance | ||||
| NOx class | 5 | 5 | 5 | |
| NOx (En 15502-2-1) | mg/kWh | 33 | 39 | 40 |
| ErP efficiency | % | 94 | 94 | 94 |
| ErP decibel rating (sound power) | dBa | 48 | 49 | 54 |
| Fluing options | ||||
| Maximum horizontal flue length 60/100 | m | 10 | 10 | 10 |
| Maximum vertical flue length 60/100 | m | 10 | 10 | 10 |
| Maximum horizontal flue length 80/125 | m | 25 | 25 | 25 |
| Maximum vertical flue length 80/125 | m | 25 | 25 | 25 |
| Rear flue options | YES/NO | Yes | Yes | Yes |
* flow restrictor fitted to achieve a Δ42K rise