Ultracom2 cxi
Combination Boiler
Available in 24, 30 & 35kW-
- High Efficiency & NOx Class 5
- Simple new in-built filling loop
- Clear fault code explanation
- One way fit, simple wiring connections
- 2 years parts and labour warranty
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Downloads
Product overview
Ultracom2 cxi
New High Efficiency combination boiler range with a choice of flexible control options available in 24, 30 & 35 kW outputs.Designed with hassle free installation in mind, the brand new Ultracom₂range of High Efficiency combi boilers offers a spacious internal design with easy access to all components without the need to remove the side panels meaning no side clearances are required.
Combined with one way wiring connections and a unique, simple filling loop design meaning you don’t have to remove any parts, installation and servicing is both straightforward and quick. The High Definition plain text display ensures hassle free and simple commissioning, whilst the advanced stainless steel heat exchanger reduces noise so much, the Ultracom₂is so quiet you’ll barely know it’s there.
Flexible controls
With a choice of plug in digital timer or external eBus controls the Ultracom₂cxi offers complete flexibility providing perfect home comfort for every application. Also featuring a unique receiver slot located inside the boiler, the Ultracom₂cxi and the new Climapro₂RF wireless programmable room thermostat are the perfect combination for advanced heating control.
Key Features
- High Efficiency and NOx Class 5 rated
- 5 second hot water delivery (measured at tap 1m from the boiler)
- Choice of plug in analogue or digital timer as optional accessory
- Simple new in-built filling loop design enabling filling without the need to remove any parts
- One way fit, simple wiring connections
- Easy access to all components from the front without the need to remove side panels meaning no side clearances are required
- Enhanced commissioning features - boiler self-check routine – initial pre-purge feature
- Clear fault code explanation – detailed plain text display helps use and commissioning
- Extremely quiet operation
- LPG compatible without conversion kit
- Flexible pre-fixing jig (optional accessory) - 1 jig for upward or downward piping
- Spacing frame available as an optional accessory
- Compatible with Glow-worm eBus controls including Climapro2 RF
- Unique receiver slot inside the boiler for easy installation of the Climapro2 RF
- years parts and labour warranty
Name Download File Flue Installation Instructions PDF (5 MB)
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Size & Performance
Size 24cxi 30cxi 35cxi Casing dimension (h w d)(mm) 726x418x346 726x418x346 726x418x346 Weight (packed) 37.1kg 37.1kg 38.3kg -
Performance
CH output (kW) Min/Max 4.9/18.5 5.9/24.5 8.4/30.0 DHW Output (Kw) Min/Max 25.5 30.6 35.7 CH Condensing Max output (Kw) N/a N/a N/a DHW Flow Rate I/MIN. 35oC rise 10.4 12.5 14.6 DHW response* 5 seconds* 5 seconds* 5 seconds* SEDBUK rating 2005 90.3 90.3 90.4 SEDBUK rating 2009 89.0 89.3 89.3 NOx class 5 (natural gas) Yes Yes Yes Adjustable to LPG Yes Yes Yes 24cxi 30cxi 35cxi -
Construction & Installation
Construction 24cxi 30cxi 35cxi Main heat exchanger type Coiled Tube Coiled Tube Coiled Tube Heat Exchanger material Stainless Steel isothermic Stainless Steel isothermic Stainless Steel isothermic Burner Type Pre-mixed Pre-mixed Pre-mixed Fully modulating Yes Yes Yes DHW plate heat exchanger Yes Yes Yes Integrated hydrobloc Yes Yes Yes Installation Suitable for sealed systems Yes Yes Yes Suitable for open-vent systems No No No Filling Loop inbuilt inbuilt inbuilt Flow restrictor Yes 8 l/min Yes 10 l/min Yes 12 l/min Inbuilt system bypass Yes Yes Yes Inbuilt Condensate Trap/siphon Yes Yes Yes Inbuilt Boiler Frost Protection Two Stage Two Stage Two Stage Continua Electronics N/a N/a N/a Zero compartment Ventilation Yes Yes Yes -
Clearences & User Interface
Clearences 24cxi 30cxi 35cxi Top (mm) (from top of boiler) 150 150 150 Side (mm) 0 0 0 Bottom (mm) 200 200 200 Front (mm)** 600** 600** 600** User Interface User display Digital Plan Text Digital Plan Text Digital Plan Text Diagnostics Advanced/ Intuitive Advanced/ Intuitive Advanced/ Intuitive User adjustable CH Temp control Yes Yes Yes User adjustable DHW Temp control Yes Yes Yes Eco Setting on DHW Yes Yes Yes Optional inbuilt timer N/a N/a N/a Optional programmer N/a N/a N/a Optional Timer N/a N/a N/a Optional Analogue Timer Kit Yes Yes Yes Optional Digital Timer Kit Yes Yes Yes Pre-fitted analogue timer -
Pipes & Flues
Pipes 24cxi 30cxi 35cxi Prefixing jig with DIN Layout N/a N/a N/a Optional Prefixing jig*** Yes*** Yes*** Yes*** Optional spacing frame Yes Yes Yes Optional rear piping kit N/a N/a N/a Water connections 2 x 22mm 2 x 15mm 2 x 22mm 2 x 15mm 2 x 22mm 2 x 15mm Flues Max horizontal Ø60/100 mm 10m 10m 10m Max vertical Ø60/100 mm 10m 10m 10m Max horizontal Ø80/125 mm 25m 25m 25m Max vertical Ø80/125 mm 25m 25m 25m Max direct rear flue N/a N/a N/a Optional plume management kit Ø60/100 Yes Yes Yes







