Wolf CGS-2-20/160L Gas Condensing Boiler with High-Performance Stratified Cylinder

Wolf CGS-2 gas condensing central unit consisting of a gas condensing boiler for operation with natural gas E, LL or LPG with a stainless steel domestic hot water heat exchanger and stratified storage tank in a modular design.
Factory-set for natural gas E, LL, convertible to LPG.
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 3 bar permissible operating pressure, suitable for continuously lowered operation down to room temperature.
Power modulated, gas-adaptive, self-calibrating combustion control with premix burner for extremely low pollutant emissions and changing gas quality, closed combustion chamber for room air dependent and independent operation.
Speed-controlled fan.
Casing white RAL 9016 powder-coated.
High standard efficiency up to 110% (Hi) / 99% (Hs) for best possible energy utilization.
Conditions of the "Blue Angel" eco-label according to RAL UZ61 when operating with natural gas.
Low CO and NOx emissions.
Continuously modulating heat output from 1.8 kW.
Lowest power consumption in standby mode of 3W.
Modulating high-efficiency pump (EEI < 0.23) for automatic adaptation of the volume flow.
For maintenance, the heating water heat exchanger can be swiveled out under system pressure without draining heating water.
Easy maintenance thanks to coated heating water heat exchanger Wolf "ALUPro".
Quick installation, simple operation and maintenance with convenient access to all components.
Easy exhaust gas measurement from the outside without opening the device.
Optimal condensing value utilization through spread control without overflow valve.
Suitable for multiple occupancy according to DVGW worksheet G635 due to integrated flue gas backflow prevention.
Warning message for low water pressure by electronic heating water pressure sensor.
Integrated 3-way diverter valve for switching between heating and domestic hot water operation.
Control unit with gas burner control, electronic ignition and ionization flame monitoring, 10l expansion vessel, hanging brackets, pressure gauge for the heating circuit, electronic pressure sensor, integrated connection piece for the air/flue gas duct with concentric connection 60/100 mm with measuring openings.
Stratified storage tank made of steel, enameled.
The "Turbostop system" in the stratified storage tank ensures comfortable domestic hot water preparation, which outperforms a coiled-tube storage water heater with 120, 160 or 200 liters.
Controlled storage tank charging for highest energy efficiency through effective condensing value utilization (European patent granted).
High performance factor NL = 1.3 to 2.5 when heating from 10° C to 60° C.
Lowest heat losses due to highly efficient insulation technology, only 1.0 kWh energy consumption in 24 hours.
Compact design as a condensing unit with stratified storage tank.
Easily separable into two modules of 35 kg and 49 kg for installation.
Prepared for the installation of the LAN/WLAN module ISM-7i for communication via smartphone, laptop, PC or the Internet.
An operating module BM-2 or a display module AM is required for operation.
Technical data:
Energy efficiency class: Space heating A, domestic hot water A
Coated heat exchanger
Rated heat output (heating/domestic hot water operation)
at 80/60°C: 3.8 - 18.9kW
at 50/30°C: 4.4 - 20.4kW
Rated load: 19.6/23.0kW
min. heat load (mod.) 3.9/6.9kW
Flue gas temperature (Qmax/Qmin)
at 80/60°C: 70/50°C
at 50/30°C: 30/25°C
Standard efficiency (HI/Hs)
at 40/30°C: 110/99%
at 75/60°C: 107/96%
Max. flow temperature: 90°C
Max. total overpressure: Heating circuit: 3.0bar, domestic hot water: 10bar
Expansion vessel capacity: 10L
Heating water heat exchanger capacity: 1.3L
Residual head for high-efficiency pump EEI