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ecoFIT sustain 15, 18 and 30kW

Specification Open Vent 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

Open vent boiler range

The ecoFIT sustain range of open vent boilers offers an excellent size-to-output ratio, giving great comfort whilst ensuring a small footprint. Use of sustainable materials also means the boiler is 100% recyclable. The range features 15, 18 and 30kW models to suit all types of homeowner and tenant properties.

Key features and benefits

• 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

• ErP 'A' Rated product - Suitable for both refurbishment and new build with lower running cost to reduce heating bills

Specifications

Specifications

Technical dataUnit of measureecoFIT sustain 415ecoFIT sustain 418ecoFIT sustain 430
General   
Boiler type open ventopen ventopen vent
Signature model output 15kW18kW30kW
Article number 001002527400100252750010025276
Gas Council number 41-694-3341-694-3441-694-35
Boiler dimensions (HxWxD)mm602 x 375 x 295602 x 375 x 295602 x 375 x 295
Heating 
Nominal heat output range at 50/30˚C (Condensing mode)kW4.7 - 15.95.2 - 19.17.4 - 31.8
Nominal heat output range at 80/60˚C (Non condensing mode)kW4.5 - 15.25 - 18,37.1 - 30,5
Maximum flow temperature˚C808080
Flow temperature range˚C10 - 8010 - 8010 - 80
Flow temperature factory setting˚C757575
Approximate condensate volume at 50/30˚Clitres/hr1,531,843,06
Modulation (max/min)1 : X1:41:51:4.9
Domestic Hot Water  
Maximum heat output for water generationkW1825,235
Lowest water pressure to operate boilerbar0,30,30,3
Mechanical 
Expansion vessel sizelitres---
Gas inlet connection (pipe size)mm151515
Heating flow and return connections (pipe size)mm222222
Heat exchanger materialStainless/ AluminiumAluminiumAluminiumAluminium
Boiler lift weight (Dry boiler)kg222222
Maximum horizontal flue length 60/100m101010
Rear flue optionsYES / NOYesYesYes
Permissible flue classifications C13, C33, C43, C53C13, C33, C43, C53C13, C33, C43, C53
Performance 
NOx class 555
NOx (En 15502-2-1)mg/kWh333940
ErP efficiency%949494
ErP decibel rating (sound power)dBa484954
PCDB seasonal efficiency%89,889,789,8

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