UNICAL KON M C28 Kw CONDENSING BOILER WITH FLUE KIT

Vendor: Unical

Description:

UNICAL KON M C28 Kw CONDENSING BOILER WITH FLUE KIT, LOW NOX 6
Secondary heat exchanger: in 12-plate stainless steel with "thermal length", optimised for condensation: In AISI 316 stainless steel with 12 plates. The one present on KON stands out from others for its low pressure drops, thus optimising the circulation of hot water in the boiler.
Total premix burner with constant combustion ratio with modulating electropneumatic gas valve and modulating fan
Electronic ignition and single-electrode flame control
Modulation ratio 1:8
Minimum heat output adjustment for heating function
Three-way diverter valve
Safety limit thermostat
Operation down to -15°
Flow temperature sensor
Return temperature sensor
Domestic hot water temperature sensor (KON "C" model only)
Expansion vessel 8 litres
Automatic air vent
Safety pressure switch against lack of water
Safety valve 3 bar
Control panel equipped with display with function selector and temperature adjustment potentiometer and unlock button
Hydrometer
Burner inspection and heat exchanger cleaning system using quick-release closures
Paper mounting template for hydraulic connection preparation
Fixing plugs
Condensate drain trap
Fixed flow circulator with air vent: Robust, powerful and reliable with excellent flow and head characteristics.


Patented heat exchanger: It is made of a special Aluminium/Silicon/Magnesium alloy which ensures its efficiency and resistance, so much so that it is guaranteed by Unical for 5 years. Thanks to the internal heat exchange configuration, efficiencies above 107% are achieved in condensing mode, which means great economic savings for the user and a very low environmental impact.

HWS "Hot Water Speed": to eliminate the delay in DHW production: The transition from the heating function to DHW production normally occurs with a delay of about 6 seconds or more, depending on the switching of the priority valve that switches off the pump and burner. In fact, it happens that the user has to wait uncomfortably in the shower for the system to restart. The new electronics adopted here, however, perform "on-the-fly" changes with the burner and pump always running, significantly improving user comfort.

2-zone management with 2 thermostats: KON also offers installation flexibility. Ideal for all systems, thanks to the electronics that allow managing 2 heating zones at different temperatures (high for radiators and fan coils, low for radiant panel systems) by controlling them with both modulating and on-off dedicated thermostats.

Electronic anti-freeze function: activates at 5°C and works for both domestic hot water and heating, bringing the boiler temperature to 15°C. This prevents the risk of KON freezing if low temperatures persist in the room where it is installed. If there is a gas shortage, a fault message will be displayed.

Pump anti-blocking function: even after long periods of inactivity, KON's electronics send a 5-second control pulse every 24 hours of downtime, starting the pump rotor and thus preventing oxidation from blocking it.

Pump post-circulation function: 15 seconds, controls the thermal balance between flow and return in all conditions, even after intense DHW withdrawals, while in heating, with a duration of 5 minutes, it allows all residual thermal inertia to be dissipated.

Chimney sweep function: facilitates combustion adjustment operations. By pressing the unlock button for more than 5 seconds, it is possible to operate at minimum or maximum power for 15 minutes to analyse combustion.

Sliding temperature operation for maximum economic management.

You can contact us by phone at: +39 081 576 60 33 or +39 331 471 43 86

All shipments generally take place within 24/48 hours of order confirmation. In the case of payments by bank transfer, the shipment will be entrusted to the courier within 24/48 hours of receipt of payment.

Returns are accepted within 14 days from the date of receipt of the order. The return policy is applicable only to end consumers (i.e., a natural person who purchases goods for purposes not related to their professional activity, or who does not make the purchase by indicating a VAT number reference in the order form to Worldclima).

More information on returns here.