Wolf CGB-2-75 Condensing Gas Boiler, Natural Gas E version

For operation with natural gas E, LL and LPG. Factory-set for natural gas E.
For space heating and domestic hot water preparation with separate hot water storage tank.
Tested according to EC directives and DIN EN 483 for heating systems according to DIN EN 12828 with flow temperatures up to 90°C and 6 bar permissible operating pressure.
Closed combustion chamber for room-air-dependent and room-air-independent operation.
Output controlled in modulating mode.
Continuously modulating heat output from 14.9 kW. Low CO and NOx emissions.
Premix burner for natural gas and LPG, control with gas burner control unit, electronic ignition and ionization flame supervision. Speed-controlled fan.
Optimal condensing value utilization through spread control. No minimum flow and no overflow valve required.
High-performance heat exchanger made of robust aluminum-silicon alloy with vertically arranged smooth fins.
Easy cleaning, high self-cleaning effect and long service life.
Easy maintenance and cleaning of the heating water heat exchanger under system pressure without draining the heating water.
Suitable for multiple occupancy according to DVGW worksheet G635 due to integrated flue gas backflow prevention,
Gas pressure switch (accessory) can be integrated.
Includes connection piece air/flue gas duct DN110/160 concentric with measuring ports.
Easy flue gas measurement from the outside without opening the appliance casing.
Electronic pressure sensor and automatic deaerator integrated.
One-piece condensate tray.
Casing white RAL 9016 powder-coated with design stripes.
Very quiet operation. Space-saving, as no side clearance is required for installation and maintenance.
Quick installation, easy operation and maintenance with convenient access to all components.
Easy installation and gas type conversion (accessory).
Easy wiring through cable ducts and easily accessible slots.
Fully integrated into the WOLF control system WRS-2 via eBus connection.
Prepared for the installation of the LAN/WLAN module WOLF Link home for remote maintenance. Compatible with building management systems, e.g. BACnet or KNX, via accessory.
Fivefold cascading possible in positive pressure. Hybrid-capable with WOLF heat pumps.
An operating module BM-2 or a display module AM is required for operation.
Technical data (natural gas E):
Energy efficiency class: Space heating A
Seasonal space heating energy efficiency: 95 %
Nominal heat output
at 80/60° C: 70.8 kW
at 50/30° C: 75.8 kW
Nominal load: 15.0 – 71.5 kW
Flue gas temperature (Qmax/Qmin)
at 80/60° C: 79° C / 60° C
at 50/30° C: 55° C / 36° C
Flow temperature max.: 90° C
Factory setting flow temperature: 80° C
Total overpressure max.: 6.0 bar
Heating water heat exchanger volume: 10 L
Electrical power consumption: 93 W
Sound power level indoors LWA: 47 dB(A)
Protection class: IP20
Connections: G 1 ½