CLAS HE
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Elegant, efficient and intelligent CLAS HE Pantone 187 CMYK 100m 79y 20k Cool Grey 7 30% Black Font family: DIN Adobe Garamond WALL-HUNG HIGH EFFICIENCY GAS BOILERS UK ONLY

2 The high efficiency boiler that saves onenergy and costs With specified intelligence, CLAS HE adapts to the householder's requirements The CLAS HE range of boilers incorporate Ariston’s innovative AUTO function, which enables the boiler to operate more efficiently by intelligently choosing the correct temperature for the central heating circuit. CLAS HE also features an LCD display which, as well as displaying information on the boiler's operation, will also display an error code in the event of a shut-down to help easily determine the cause.

3 Home comfort with CLAS HE n SEDBUK Band A n NOx Class 5 n High combi DHW flow rates 15.6 l/min ÆT = 35ºC (38kW model) n Compact dimensions n 5 year guarantee n Self diagnostic display n Multiple flue options n Extensive range of controls and accessories available n Stainless steel heat exchanger Easy to install and service The CLAS HE boiler has been designed with ease of installation in mind and the boiler features a simple connection kit, which includes a filling loop. And to ensure a tidy finish to the installation, CLAS HE also has a clip-on connection kit cover. With the range of...

4 The latest technology Maximum comfort Easy installation, hassle free servicing The CLAS HE range has been designed with the installer in mind. The dimensions between the pipe work connections and the flue has been reduced, allowing for a lower fixing height. The combi and system boiler versions feature a simple connection kit, which includes a filling loop as standard. All components are easily accessible and require a minimal amount of tools for servicing and maintenance.

5 Installer benefits n SEDBUK Band A n Filling loop (combi and system versions) n Mechanical time clock (combi versions) n Rear piping chassis available as an option (combi and system versions) n Reduced fixing height between pipe work and flue n Multiple flueing options n Easily accessible for servicing and maintenance n Wide range of control and installation accessories available Simple controls There is an extensive selection of easy to use controls available for the CLAS HE range. The controls are available as both wired and wireless (allowing installation without the need for a...

6 Weather Compensation - As Easy as Ariston Boiler & Controls The advanced AUTO function ensures intelligent management of the room temperature whilst guaranteeing maximum energy efficiency and offering energy savings. By pressing the AUTO button on the CLAS HE control panel, the boiler will automatically choose the ideal temperature for the central heating circuit by gradually increasing the temperature of the system water until the room reaches the set temperature, whilst guaranteeing no excessive peaks in the flow temperature. When used in conjunction with the extensive range of...

Advanced, intelligent functions 7 Modulating Room Sensor Signal Receiver Room Thermostat Outdoor Sensor Ariston also offers an extensive range of temperature controls for use with the CLAS HE range. These are available either as hard wired or wireless, and include on-off room thermostats, modulating room sensors, outdoor sensors and programmable room thermostats. The wireless controls can be fitted without the need for a qualified electrician. Multi-functional LCD interface Remote control Clima Manager 1 7 3 2 13 4 6 5 14 12 11 10 9 8 1 Information button 2 Auto/manual button 3...

8 CLAS HE COMBI WALL-HUNG HIGH EFFICIENCY GAS COMBINATION BOILERS 24 FF - 30 FF 38 FF n AUTO-DIAGNOSTIC SYSTEM n SIMPLE MAINTENANCE WITH ACCESS FROM THE FRONT OF THE APPLIANCE n ANTI-FROST AND ANTI-SCALE DEVICE n BUILT-IN AUTOMATIC BY-PASS n BUILT-IN MECHANICAL TIME CLOCK n INCLUDES CONNECTION KIT AND FILLING LOOP n CLIP-ON CONNECTION KIT COVER AS STANDARD n SEDBUK BAND A n AVAILABLE IN THREE OUTPUTS n HIGH HOT WATER FLOW RATES n COMPREHENSIVE RANGE OF WIRED AND WIRELESS CONTROLS n UNIQUE 'AUTO' FUNCTION OPTIMISES EFFICIENCY OF BOILER AND SYSTEM n COMFORT SWITCH (PRE-HEAT HOT WATER...

9 flow rate l/h 100 200 300 400 500 600 700 800 900 1000 1100 1200 13001400 100 200 300 400 500 600 mbar 1 2 Graph of boiler residual head ÆT20oC 1 High Speed 2 Low Speed NTC1 OT NTC2 A B C D E ROOM SEALED FAN FLUE maximum flexibility CLAS HE CLAS HE CLAS HE 24 FF 30 FF 38 FF EFFICIENCY SEDBUK Rating Band A A A SAP efficiency % 90.3 90.3 90.1 POWER & PERFORMANCE Heat input max. kW - Btu/h 27.8 - 94,500 33.3 - 113,600 42.2 - 144,000 Heat input min. kW - Btu/h 6.1 - 20,800 7.2 - 24,500 8.3 - 28,300 Heat output max. (C.H.) kW - Btu/h 21.0 - 71,600 27.0 - 92,100 30.0 - 102,300 Heat output max....

WALL-HUNG HIGH EFFICIENCY GAS SYSTEM BOILERS 10 CLAS HE SYSTEM 18 FF - 24 FF 30 FF n BUILT-IN AUTOMATIC BY-PASS n INCLUDES CONNECTION KIT AND FILLING LOOP n CLIP-ON CONNECTION KIT COVER AS STANDARD n SEDBUK BAND A n AVAILABLE IN THREE OUTPUTS n COMPREHENSIVE RANGE OF WIRED AND WIRELESS CONTROLS n UNIQUE 'AUTO' FUNCTION OPTIMISES EFFICIENCY OF BOILER AND SYSTEM n AUTO-DIAGNOSTIC SYSTEM n SIMPLE MAINTENANCE WITH ACCESS FROM THE FRONT OF THE APPLIANCE LEGEND A: Central heating flow 22mm compression C: Gas inlet 15mm compression E: Central heating return 22mm compression F: Flue (Ø mm) F1:...

11 flow rate l/h 100 200 300 400 500 600 700 800 900 1000 1100 1200 13001400 100 200 300 400 500 600 mbar 1 2 Graph of boiler residual head ÆT20oC 1 High Speed 2 Low Speed highly adaptable Technical Information CLAS HE SYSTEM CLAS HE SYSTEM CLAS HE SYSTEM 18 FF 24 FF 30 FF EFFICIENCY SEDBUK Rating Band A A A SAP efficiency % 90.2 90.4 90.4 POWER & PERFORMANCE Heat input max. kW-Btu/h 20.0 - 68,200 27.7 - 94,500 33.3 - 113,600 Heat input min. kW-Btu/h 5.0 - 17,000 6.1 - 20,800 7.2 - 24,500 Heat output max. (C.H.) kW-Btu/h 17.6 - 60,000 21.0 - 71,600 27.0 - 92,100 Heat output min. kW-Btu/h...

12 CLAS HE R WALL-HUNG HIGH EFFICIENCY GAS REGULAR BOILERS 12 FF - 18 FF 24 FF n SIMPLE MAINTENANCE WITH ACCESS FROM THE FRONT OF THE APPLIANCE n FOR USE ON OPEN VENTED AND SEALED SYSTEMS n ANTI-FROST PROTECTION n SEALED SYSTEM KIT AVAILABLE AS AN OPTIONAL EXTRA n 240V SWITCHING n SEDBUK BAND A n AVAILABLE IN THREE OUTPUTS n UNIQUE 'AUTO' FUNCTION OPTIMISES EFFICIENCY OF BOILER AND SYSTEM n TWO ZONE TEMPERATURE MANAGEMENT ALLOWS OPTIMISATION AND EASY UPGRADE OF STANDARD SYSTEMS n COMPATIBLE WITH OUTDOOR SENSOR n AUTO-DIAGNOSTIC SYSTEM LEGEND A: Central heating flow 22mm compression C: Gas...