19
20
2
16
17
15
14
12
11
10
13
TABLE 2
Lift Weight
Total Weight
Gas connection
Heating and return
Domestic hot water
Safety valve
Safety valve discharge
Water content
Expansion vessel capacity 8 litres (1.76 gallons)
Heating cold fill
pressure minimum
Ball valves are fitted in water and gas connections, plus a drain point on all water connections.
Boiler starts at an inlet pressure of 0.6bar but requires 0.8bar for maximum output.
For larger systems use an additional expansion vessel, see Section 4.
221474C
Supplied By www.heating spares.co Tel. 0161 620 6677
1 General Data
21
4
1
3
5
6
18
9
8
7
39.0 kg (85.98 lb)
52.8 kg (116.40 lb)
Rc
1
/
(
1
/
in BSPT)
2
2
22mm compression
15mm compression
Preset 3bar (43.5lbf/in
15mm copper
1.74 litres (0.38 gallon)
0.7bar
2
(10.1lbf/in
)
KEY
1 - Heat Exchanger
2 - Main Burner
3 - Ignition Electrode
4 - Automatic Air Vent
5 - Expansion Vessel
6 - Pump
7 - D.H.W. Hot Outlet
8 - C.H. Return
9 - Gas Supply
10 - C.H. Flow
11 - D.H.W. Cold Inlet
12 - Safety Valve
TABLE 1
NOMINAL
kW
HEAT
INPUT(NET)
NOMINAL
kW
HEAT
OUTPUT
BURNER
mbar
PRESSURE
p
3
APPROX.
m
/h
GAS RATE
FACTORY PRESET TO 17.6 kW
FACTORY PRESET TO 2.7 mbar
D.H.W
working pressure
Maximum Heating
system water
content using
fitted expansion vessel.
Domestic hot water
flow rate for a
2
)
temperature rise of: 30
Electrical supply
Electrical rating
Internal Fuse rating:
8
13 - Safety Valve Discharge
14 - Water Throttle
15 - Mini Expansion Vessel
16 - Flow Sensor
17 - Multi-Functional Control
incorporating Gas/Air
Ratio Unit
18 - Pressure Switch-Water
19 - Venturi
20 - Flue Collector
21 - Pressure Sensing Probe
Diagram 1.2
D.H.W Max
C.H. Max
MIN
39.2
26.2
10.2
35.2
23.5
8.8
16.8
8.0
1.2
4.1
2.8
1.0
0.6 to 10bar
(8.70 to 188lbf/in
119 litres
(26.2 gallons) with
a cold fill pressure
of 0.7bar
0
C 16.8 litres/min.(3.7 gals)
35
0
C 14.4 litres/min.(3.17 gals)
230V~50Hz
130W
Fuse 1
Type 2AT
Fuse 2 Type 3.15AT
2
)
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