Operation Manual

22
GTU C 330 16/09/2015 - 300017846-02
9. Technical specifications
9 Technical specifications
(1) Stand-by losses, according to the standard EN 304
(2) as a % of stand-by losses
(3) At nominal output
(4) Maintenance consumption, as a % of the input - according to the
standard EN15034

1 mbar = 10 mmWG = 10 daPa.
Conditions of use: Test conditions:
Maximum operating temperature: 90 °C
CO
²
Fuel oil = 13%
Maximum operating pressure: 4 bar Ambient temperature: 20 °C
Thermostat adjustable from 30 to 90°C
Safety thermostat: 110 °C
80°C limiter thermostat - Condenser
Flue gas temperature safety thermostat: 120 °C
Boiler GTU C 334 335 336 337 338 339
Nominal output Pn at 50/30°C kW 93.4 120.3 157.3 192.7 239.7 291.2
LHV efficiency - 100 % Pn - Average temperature:
70 °C
% 97.8 96.9 96.4 98.1 97.7 97.6
LHV efficiency - 30 % Pn - Return temperature:
50 °C
% 101.5 101.4 101.1 102.2 101.8 101.5
LHV efficiency - 30 % Pn - Return temperature:
30 °C
% 103.0 102.8 103.0 104.7 104.0 103.8
Nominal water flow (Nominal output) - ∆T = 20K
m
3
/h
4.019 5.178 6.769 8.293 10.312 12.530
Stand-by losses (1) , ∆T =
30K
W 315 335 350 495 500 510
Losses through the outer
casing (2)
%697378838793
Auxiliary electrical power (3) W 325 435 650 625 625 1100
Useful output range at 50/30°C kW 56.7-93.4 93.7-120.3 120.2-157.3 155.4-192.7 191.7-239.7 238.4-291.2
Useful output range at 80/60°C kW 55-90 90-115 115-150 150-185 185-230 230-280
Water content l 113 133 153 177 197 217
Loss of load hydraulic circuit
∆T = 10K (1) mbar 11 18 31 46 68 105
∆T = 15K (1) mbar 4.6 7.4 14.2 19.5 30.1 46
∆T = 20K (1) mbar 2.6 4.2 8.0 11 17 26
Combustion chamber
Inscribed diameter mm 377 377 377 377 377 377
Length mm 613 718 854 993 1117 1245
Volume
m
3
0.096 0.122 0.148 0.174 0.200 0.226
Number of sections 4 5 6 7 8 9
Number of baffle plates 6 10 10 10 12 12
Mass flue gas flow rate (3) - at 50/30°C Kg/h 149 191 248 306 381 463
Flue gas temperature (3) °C 50 55 61 62 63 65
Pressure available at the flue gas nozzle mbar 1.0 0.6 1.8 1.9 1.6 1.7
Loss of load flue gas side mbar 0.45 0.8 1.0 1.3 1.6 2.3
Maintenance consumption (4) ∆ T = 30K % 0.38 0.32 0.25 0.28 0.23 0.19
Burner type M202-2S M302-1S M302-3S M302-3S M302-4S M302-5S
Weight (empty) kg 678 802 912 1117 1239 1366