Riello RTT 29, Instructions For The Installer

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1.3 Technical data
RTT CAST IRON BOILER
RTT 29
BOILER
RTT 39
BOILER
RTT 49
BOILER
RTT 59
BOILER
RTT 69
BOILER
RTT 79
BOILER
UM
Number of sections
3 4 5 6 7 8
pieces
Heat output
29.1 39.0 48.8 58.7 68.6 78.5
kW
25,000 33,500 42,000 50,500 59,000 67,500 kCal/h
Heat input
31.6 42.3 53.6 63.8 74.5 85.3
kW
Operating temperature
90
max °C
Temperature adjustment range
30-90
°C
Gas side resistor 0.31-0.46 0.42-0.59 0.61-0.89 0.84-1.25 1.02-1.37 1.19-1.56 mbar
Maximum operating pressure
4
max. bar
Boiler water capacity
13.74 17.38 21.02 24.66 28.30 31.94
litres
0.0137 0.0174 0.0210 0.0247 0.0283 0.0319 m
2
Diameter of combustion gases discharge pipe
130 150
mm
Combustion chamber dimensions
Ø
290
mm
L
280 380 480 580 680 780
mm
Water input-output coupling
G 1 1/4"
DN (*)
Boiler volume (gas side)
24.20 33.40 42.60 51.80 61.00 70.20
dm
3
(lt.)
0.024 0.033 0.043 0.052 0.061 0.070 m
2
Combustion chamber volume (gas side)
16.94 23.38 29.82 36.26 42.70 49.14
dm
3
(lt.)
0.017 0.023 0.030 0.036 0.043 0.049
m
2
Safety limit thermostat
100
°C
Type of boiler ON/OFF
Type of fuel
Natural gas (I2H) gas
Liquid Fuel (Extra Light Fuel Oil)
comb.
liquid
Flue gases output temperature
full load 181-187 175-185 170-182 169-181 167-180 163-176
°C
partial
load
160-163 157-160 155-157 152-155 146-150 143-147 °C
Mass flow rate of the flue gases
(%13Co
2
) %60
full load 49 65 82 98 115 131 kg/h
partial
load
29.215 39.148 49.081 59.015 68.948 78.881 kg/h
Type of burner short head
Dimensions of burner flange coupling 106 mm
Heat loss in stand-by
0.25 0.23 0.20 0.17 0.15 0.13
%
678 835 907 926 956 948 kCal/h
Boiler length (L)
540 640 740 840 940 1,010
mm
Dry weight 122 150 177 208 235 262 Kg