DeDietrich GT 2204/160, Installation And Service Manual, Page: 6 / 28

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GT 220 - GT 2200 22/01/09 - 300008281-001-E
2. Description
2.4 Technical characteristics
12.5 % on fuel oil and 9.5 % on natural gas
- Flow temperature: 80 °C.
- Return temperature: 60 °C.
- Maximum operating pressure: 4 bar
- Maximum operating temperature: 100 °C
- Boiler thermostat setting: 30 - 90 °C
- Setting the safety thermostat: 110 °C
Boiler type
GT 224
GT 2204
160
GT 2204
250
GT 225
GT 2205
160
GT 2205
250 GT 226 GT 227 GT 228
Nominal output Pn kW 50 50 64 64 78 92 100
Useful output range kW 40-50 40-50 50-64 50-64 64-78 78-92 92-100
Input range kW 43.2-54.5 43.2-54.5 54.0-69.7 54.0-69.7 69.7-84.8 84.2-100.1 99.6-108.9
PCI efficiency - at 100% Pn
(Average temperature: 70 °C)
% 91.7 91.7 91.8 91.8 92.0 91.9 91.8
PCI efficiency - at 30% Pn
(Average temperature: 50 °C)
% 93.9 93.9 93.7 93.7 93.6 93.8 94.1
PCI efficiency - at 30% Pn
(Average temperature: 40 °C)
% 94.1 94.1 94.3 94.3 94.6 94.6 94.7
Fuel oil burner (Option)
1 stage
M200/1S(1) M200/1S(1) M200/1S(1) M200/1S(1) M201/2S M201/2S M201/2S
1 stage
M201/2N M201/2N M201/2N M201/2N
2 stages
M202/2S(1) M202/2S(1) M202/2S(1)
1 stage (Belgium)
M100/3S M100/3S M100/3S(2) M100/3S(2)
1 stage
G200/1S G200/1S G200/1S G200/1S G200/1S(3)
Gas burner (Option) 1 stage
G201/2N(4) G201/2N G201/2N
2-stage or modulating
G203/2N(4) G203/2N G203/2N
Number of cast iron parts 4 4 5 5 6 7 8
Nominal water flow (Nominal output)
∆
T = 20K
m
3
/h
2.151 2.151 2.754 2.754 3.356 3.959 4.303
Stand-by losses ∆
T = 30K
W 197 197 213 213 226 238 247
Losses through the outer casing
∆
T = 30K
% 64 64 68 68 70 72 73
Auxiliary electrical power
( Nominal output - ex circulating pump)
W 10 10 10 10 10 10 10
Water content litres 36 36 43 43 50 57 64
Water resistance
∆
T = 15K mbar* 11.0 11.0 17.8 17.8 26.5 36.7 43.4
Flue gas circuit volume litres 54 54 68 68 83 97 111
Combustion chamber
Inscribed Ø mm 309 309 309 309 309 309 309
Depth mm 446 446 573 573 700 827 954
Volume litres 33 33 42 42 51 60 69
Mass flue gas flow rate
Fuel oil Kg/h 83 83 106 106 129 152 166
Gas Kg/h 91 91 117 117 143 168 183
Pressure in the furnace for nozzle pressure = 0 mbar mbar 0.2-0.5 0.2-0.5 0.3-0.6 0.3-0.6 0.3-0.8 0.4-0.8 0.6-0.9
Smoke temperature (Boiler temperature
=70 °C)
°C <195 <195 <195 <195 <195 <205 <205
Weight (empty)
GT 220 kg 218 218 257 257 297 336 375
GT 2200 kg 318 348 357 387 - - -
Tank capacity GT 2200 litres 160 250 160 250 - - -
Power exchanged
(5) (7)
GT 2200 kW 28 36 28 36
Specific flow **
(6) (7)
∆
T = 30K
litres per
min.
20.5 30 20.5 30
Flow per hour **
(6) (7)
∆
T = 35K l/h 690 885 690 885
Flow in 10 minutes***
(6) (7)
∆
T = 30K
litres per
10 min.
255 385 255 385
Cooling constant Cr
Wh/
24h·L·K
0.26 0.23 0.26 0.23
Losses through the outer casing (DHW)
∆
T = 45K kW 78 108 78 108 690 810 690
Auxiliary electrical power (DHW) kW 80 80 80 80 255 385 255