Technical data

Page 32
5.4.5 U-Series Utility – Combi (UCHE)
MODEL
UC70HE
UC90HE
UC120HE
Nominal
Heat Output
kW
Btu/hr
14.7
50,000
17.6
60,000
21.0
71,650
21.0
71,560
23.5
80,000
27.1
92,380
27.1
92,380
29.0
99,050
32.7
111,600
Nominal
Heat Input
kW
Btu/hr
15.3
52,150
18.4
62,600
22.0
75,000
22.0
75,000
24.4
83,175
28.0
95,550
28.0
95,550
30.0
102,400
34.0
116,000
Burner
RDB 2.2 15-21
RDB 2.2 21-26
RDB 2.2 26-33
Head
T1SH
T2SH
T5S
Secondary Air Damper
B
N/A
N/A
Conventional
Flue Diameter
mm
in
100 or 125
4 or 5
100 or 125
4 or 5
100 or 125
4 or 5
Flue Gas Temp.
0
C
86
88
90
90
93
95
95
98
110
Smoke
Bacarach
0
0
0
Kerosene Settings
Nozzle
make
Danfoss 60°ES
Danfoss 60°ES
Danfoss 60°ES
size
0.5
0.5
0.6
0.6
0.65
0.75
0.75
0.85
0.85
Oil Pump
Pressure
bar
psi
7.0
102
9.0
130
8.0
116
8.0
116
8.0
116
7.0
102
7.0
102
8.0
116
10.0
145
Max CO
2
%
11.5
11.5
11.5
11.5
11.5
11.5
11.5
11.5
11.5
Approx Fuel
Flow Rate
litres/h
Gals/h
1.65
0.36
1.98
0.44
2.35
0.52
2.35
0.52
2.65
0.58
2.98
0.65
2.98
0.65
3.40
0.75
3.81
0.84
Water
Content
litres
gals
74
16.3
74
16.3
74
16.3
Boiler Weight Dry
kg
140
140
140
Boiler Weight Wet
kg
214
214
214
Domestic Hot Water (DHW) Production
Minimum Inlet Dynamic
Pressure for Maximum
DHW Flow Rate
bar
psi
1.8
26
1.8
26
1.8
26
Maximum Achievable DHW Flow
Rate
Unrestricted
Unrestricted
Unrestricted
Maximum Recommended
DHW Flow Rate
litres/m
gal/m
18
4.0
18
4.0
18
4.0
Factory Set
DHW Flow Rate
litres/m
gal/m
18
4.0
18
4.0
18
4.0
Minimum
DHW Flow Rate
litres/m
gal/m
2.5
0.55
2.5
0.55
2.5
0.55
DHW Temperature Rise
(at Maximum Output)
32°C @ 18 litres/min
for 120 litre draw-off
32°C @ 24 litres/min
for 120 litre draw-off
32°C @ 24 litres/min
for 120 litre draw-off
Pressure Relief
bar
psi
2.5
0.55
2.5
0.55
2.5
0.55
Cold Water Mains Inlet Connection
Minimum 15mm Unrestricted
Minimum 15mm Unrestricted
Minimum 15mm Unrestricted
DHW Outlet Connection
22mm Copper
22mm Copper
22mm Copper
Flow Connection
22mm Copper
22mm Copper
28mm Compression
Return Connection
1” BSP Female
1” BSP Female
1” BSP Female
SEDBUK Efficiency 2009
89.1%
89.1%
89.1%
Factory Settings
Highlighted in bold