Unical ALKON 70 kW Instruction Manual download pdf (Page 7)

Technical features and dimensions

2.1 - TECHNICAL FEATURES

The ALKON 50/70 boilers are a thermals gas fired units with

an atmospheric fully pre-mixed burner.

They are supplied only in heating version.

These boilers have an input head power of: 50 or 70 kW,

These boilers are designed for use on gas category II2H3P.

The ALKON boilers are supplied complete with all the safety

and control devices in accordance with all the current

regulations and the following European directives:

– Gas Directive 90/396 CEE

– Efficiency Directive 92/42 CEE

– Electromagnetic Compatibility Directive 2004/108 CEE

– Low Voltage Directive 2006/95 CEE.

Moreover, the boilers of the ALKON range are classified as

“CONDENSING BOILERS” according to the Directive 92/42

CEE appendix 2 (4 stars).

DESCRIPTION OF COMPONENTS AND FEATURES

• Aluminium heat exchanger/condenser;

• Fully premixed burner working at constant CO2;

• Electronic ignition;

• Safety high limit thermostat;

• Flow temperature sensor;

• Return temperature sensor;

615

930

266

85 110 110 132 100 78

430 107

125

179

RMG

Scf

R CH system return 1’’ (1 ¼’’ for 70 kW)

M CH flow system 1’’ (1 ¼’’ for 70 kW)

G Gas Inlet Ø ¾’’

Sc Outlet condensate drain siphon (corpo alluminio)

135

180

266

Scf Outlet condensate drain siphon (proveniente dal tubo scarico fumi)

SV Safety valve outlet

A Air intake

S Flue Outlet

TECHNICAL FEATURES

AND DIMENSIONS

2.2 - DIMENSIONS

• Automatic air vent;

• Drain condensate siphon

• Control panel with electrical protection IP X4D;

• eBUS device;

• CH temperature selector switch: 30 ÷ 85°C;

• Flame modulation in function of the absorbed power;

• Pump overrun function;

• Additional functions : diagnostics of operation parameters

and troubles, antifreeze, technical functions and digital in-

dication of failures.

• Constant combustion ratio

• Self adapting output depending on the length of flue ducts

• Modulating pump for ALKON 70

OPTIONAL KITS:

• Kit of manidold for additional safety devices

• Kit of additional safety devices

• Krömschröder controller E8/Expansion modules and

modulating thermostats

(case for wall mounting)

• Kit of boiler pump (at constant or modulating flow rate:

only for ALKON 50)

• Mixing bottle Kit

• Chimney for single, battery or cascade mounting

• Supporting frames

• Kit for D.H.W. priority

• Kit of blind flanges and hydraulic manifolds

• Kit of wiring harness for external D.H.W. tank

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Unical ALKON 70 kW Instruction Manual Page 7

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