4
4.3 systeMPaC - teCHniCal Details
29
teCHniCal sPeCiFiCation
Heat Output
kW
12-20 + 20-26
26-35
35-44
COnneCtiOns
-
-
-
Heating Flow
22 mm dia.
28 mm dia.
1 ½” BSP
Heating Return
1” BSP
1” BSP
1 ½” BSP
Mains Cold Feed (Copper)
15 mm dia.
15 mm dia.
15 mm dia.
Drain Off Valve
½” BSP
½” BSP
½” BSP
Safety Pressure Valve Outlet (Copper)
15 mm dia.
15 mm dia.
15 mm dia.
Condensate Trap
22 mm dia. plastic
22 mm dia. plastic
22 mm dia. plastic
CirCulating pump
25/60
25/60
25/80
Integral Expansion Vessel Normal
Capacity
12 litres
12 litres
18 litres
Expansion Vessel Pre-charge Pressure
1 bar
1 bar
1 bar
Low Pressure Water Switch?
✔
✔
✔
Filling Loop Included?
✔
✔
✔
Water COntent
-
-
-
Boiler
24 litres
24 litres
45 litres
Flue (indOOr BOilers)
-
-
-
Balanced Flue Assembly
125 (5”) mm dia.
125 (5”) mm dia.
150 (6”) 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.
Max. Operating Pressure
2 bar
2 bar
2 bar
Max. System Pressure Cold
1.5 bar
1.5 bar
1.5 bar
Min. System Pressure Cold
0.5 bar
0.5 bar
0.5 bar
Preset Pressure Relief Valve
3 bar
3 bar
3 bar
Water side resistanCe
Flow rate to give a nominal Output at 10K differential
20kW
26kW
35kW
44kW
Flow Rate Measured
1642
kg/h
2135
kg/h
2874
kg/h
3613
kg/h
Waterside Resistance
0.18
mbar
0.18
mbar
0.18
mbar
0.22
mbar
Flow rate to give a nominal Output at 20K differential
20kW
26kW
35kW
44kW
Flow Rate Measured
870 kg/h
1131
kg/h
1523
kg/h
2915
kg/h
Waterside Resistance
0.19
mbar
0.19
mbar
0.19
mbar
0.24
mbar
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