Ultracom₂ sxi

New High Efficiency system boiler range with a choice of flexible control options available in 12, 18 & 30 kW outputs.

Designed with hassle free installation in mind, the brand new Ultracom₂range of High Efficiency system 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 Ultracom₂sxi offers complete flexibility providing perfect home comfort for every application. Also featuring a unique receiver slot located inside the boiler, the Ultracom₂sxi and the new Climapro₂RF wireless programmable room thermostat are the perfect combination for advanced heating control.

 

Key Features

• SEDBUK A and NOx Class 5 rated
• Plug in digital timer as an optional accessory
• 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 (18 & 30kW models)
• 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 Climapro₂RF and Smart Wiring Centre
• Unique receiver slot inside the boiler for easy installation of the Climapro₂RF
• 2 years parts and labour warranty

	12sxi	18sxi	30sxi
Size & Performance
Size
Casing dimension (h w d)(mm)	740x418x346	740x418x346	740x418x346
Weight (packed)	37.1kg	37.1kg	38.3kg
Performance
CH output (kW) Min/Max	3.9/12	4.9/18.2	8.5/30
SEDBUK rating	A	A	A
SEDBUK %	90.40	90.4	90.5
Nox class 5 (natural gas)	Yes	Yes	Yes
Adjestable to LPG	No	Yes	Yes
Construction  & Installation
Construction
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
Integrated hydrobloc	Yes	Yes	Yes
Installation
Suitable for sealed systems	Yes	Yes	Yes
Suitable for open-vent systems	No	No	No
Inbuilt system bypass	Yes	Yes	Yes
Inbuilt Condensate Trap/siphon	Yes	Yes	Yes
Inbuilt Boiler Frost Protection	2 Stage	2 Stage	2 Stage
Zero compartment Ventilation	Yes	Yes	Yes
Clearences & User Interface
Clearences
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	N/a	N/a	N/a
Optional Digital Timer Kit	Yes	Yes	Yes
Pipes & Flues
Pipes
Optional Prefixing jig***	Yes	Yes	Yes
Optional spacing frame	Yes	Yes	Yes
Water connections	2x22mm	2x22mm	2x22mm
Flues
Ø60/100 mm Horizontal	10m	10m	10m
Ø60/100 mm Vertical	10m	10m	10m
Ø80/125 mm Horizontal	20m	25m	25m
Ø80/125 mm Vertical	20m	25m	25m
Optional plume management kit	Yes	Yes	Yes
* This can be reduced to 5mm for removable panel
** Activated with additional of options board or Smart Wiring Centre
*** Upward and downward piping