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1.1 INTRODUCTION
The cast iron boilers “1R/2R freestan-
ding” for gas-oil or gas has been desi-
gned in compliance with the European
Directives 90/396/CEE, 89/336/CEE,
73/23/CEE, 92/42/CEE.
The cast iron boilers “2R GT” for gas-oil
has been designed in compliance with
the European Directive 92/42/CEE.
The components for “1R/2R free-
standing” installation are supplied in
three separate packages: boiler body,
casing with enclosed documents and
control panel.
“2R GT” boilers are supplied in four
separate packages: boiler body, casing
with enclosed documents, control
panel and burner with instructions.
1BOILERDESCRIPTION
1R6 1R7 1R8 1R9
Output kW 64.8 74.0 84.0 93.3
kcal/h 55,700 63,600 72,200 80,200
Input kW 73.4 83.1 93.8 103.4
kcal/h 63,100 71,500 80,700 88,900
P (depth) mm 595 670 750 825
Sections n° 6 7 8 9
Maximum water head bar 4 4 4 4
Water content l37.542.046.551.0
Loss of head
Smoke mbar 0.20 0.16* 0.22* 0.30*
Water (Δt 10°C) mbar 30.0 34.0 40.0 45.5
Comb. chamber pressure mbar – 0.01 0.06 0.08 0.08
Suggested chimney depression
mbar 0.21 0.22 0.30 0.38
Smokes temperature °C 225 217 209 201
Smokes flow m
3
n/h 68.0 77.7 88.0 97.6
Adjustment range
Heating °C 30÷85 30÷85 30÷85 30÷85
Smokes volume dm
3
42 46 50 55
Weight kg 261 293 325 357
1.3 TECHNICAL FEATURES
1.3.1 “1R” boiler
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