Operation Manual

GTUC 337 GTUC 338 GTUC 339

Useful efficiency at rated heat output and high

temperature regime

(4)

% 92.5 92.2 92.1

Useful efficiency at 30% of rated heat output

and low temperature regime

(3)

% 98.8 98.1 97.9

Auxiliary electricity consumption

Full load

elmax

kW 0.556 0.556 1.006

Part load

elmin

kW 0.272 0.272 0.493

Stand-by

kW 0.006 0.006 0.006

Other characteristics

Standby heat loss

stby

kW 1.182 1.208 1.236

Emissions of nitrogen oxides NO

mg/kWh 101 101 98

(1) Low temperature means for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C return temperature (at

heater inlet).

(2) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.

See

The back cover for contact details.

1.3 Disposal and Recycling

Warning

Removal and disposal of the boiler must be carried out by a quali

fied installer in accordance with local and national regulations.

Fig.1 Recycling

MW-3000179-03

1 Specific information

4 300017846 - ErP01 - 31082015