7
21
7.4 - sIlver utIlIty - teCHnICal detaIls & dImensIons
Heat output
kW
15-20
20-26
26-35
ConneCtIons
Heating Flow
1” BSP
1” BSP
1” BSP
Heating Return
1” BSP
1” BSP
1” BSP
Drain Off Valve
1
/
2
”
BSP
1
/
2
”
BSP
1
/
2
”
BSP
Condensate Trap
22mm dia. plastic
Water Content
Boiler
24 litres
24 litres
24 litres
flue (Indoor Boilers)
Balanced Flue assembly
125 (5”) mm dia.
125 (5”) mm dia.
125 (5”) mm dia.
Max. Low Level Flue Length
1.5m
1.5m
1.5m
Max. High Level Balanced Flue Length
6m
6m
6m
HeatIng system (sealed)
Fit in accordance with BS 7074 Part 1, BS 5449, OFTeC standards and all other relevant legislation.
Preset Pressure Relief Valve
2 bar
Water sIde resIstanCe
12-20kW 20-26kW 26-35kW
flow rate to give a nominal output at 10K differential
Flow Rate Measured
1642 kg/h
2135 kg/h
2874 kg/h
Waterside Resistance
0.18 mbar
0.18 mbar
0.18 mbar
flow rate to give a nominal output at 20K differential
Flow Rate Measured
870 kg/h
1131 kg/h
1523 kg/h
Waterside Resistance
0.19 mbar
0.19 mbar
0.19 mbar
Pressure Jet oIl Burners
RIeLLO RDB 2.2
fuel
Kerosene 28 Second Class C
eleCtrICal suPPly
230V aC 50Hz 5a
temPerature Control
Boiler Central Heating Control
60˚C - 80˚C
Boiler Safety Limit
110˚C
Thermostats have an operating tolerance of ± 4˚C
Front View
Side View
Top View
W
D
F
G
H
A
C
E
B
model - silver
(output range)
Weight
kg
dimensions (mm)
H
W
d
a
B
C
e
f
g
silver utility 15-20kW
125
845
442
610
755
221
157
94
125
502
silver utility 20-26kW
128
845
442
610
755
221
157
94
125
502
silver utility 26-35kW
131
845
442
610
755
221
157
94
125
502
