1.2 Technical Data
Hot water
Input ..._....................................... 28.90 kW 98612 Btulh
Output . .......................... . ....... 23.00 kW 78480 Btulh
Water flow raised
45 “C (81
"F)
.............................. 7.4 I/min
Water iIow raised
35 ‘C (63 “F) .............................. 9.5 Vmin
Water flow raised
30 “C (54 “F). ............................. 11.1 Ymin
Maximum temperature.. ............. 60 T
Maximum pressure.. ................... 10 bar
Minimum working pressure.. ...... .6 bar
Gas rate ...................................... 2.743 m3/h
Burner pressure .......................... 11.8 mbar
1.7 ga.I/min
2.1 gaI/min
2.5 gaI/min
140 OF
150 psi
9 psi
96.87 fi3h
4.7 in wg
Central heating
Maximum input.. ........................ 27.64kW 94313 Btti
Maximum output.. ...................... 22.00 kW 75068 Btti
Gas rate (maximum) ................... 2.63 m3/h 92.98 @lh
.lrner pressure.. ........................ 11.2 mbar 4.5 in wg
.,rinimum input ........................... 10.85 kW 37020 Btuih
Minimum output.. ....................... 7.64 kW 26062 Btu/h
Gas rate (minimum) ................... 1.0 m3/h 35.31 ft3/h
Burner pressure.. ........................ 1.5 mbar 0.6 in wg
Minimum flow rate ..................... 300 lib 1.1 gal/min
Maximum pressure.. ................... 2.5 bar 36.5 psi
At the maximum pressrrre loss of the fiue
Temperature of the products of
combustion : ... .............. . ....... 98 T 208 OF
The CO content of the dry free air
products of combustion : .. ...... 0.0136%
Natural gas Pressure switch - DUNGS 88 Pa I 49 Pa
Connections
Gas.............................................................. 22 mm copper
Heating flow ................................................ 22 mm copper
Heating return.. ............................................ 22 mm copper
Mains cold water inlet.. ................................ 15 mm copper
Hot water outlet.. ......................................... 15 mm copper
Electrical supply 240 V - 50 Hz, fused at 3A.
Electrical consumption ..................._............. 195 watts
Internally fused, two at 2A (BS 4265)
Weight .... ...... ._.._.._........_.......................... 42 kg 92.4 lb
Water capacity ............ ._.,......................... 4 Iitres 7 pints
Ignition - ANSTOSS continuous spark generator
Ignition electrode - SAPCO
Ignition probe - SAPCO
Thermistor - SIEMENS
Boiler fiiit thermostat - SOPAC /JAEGER (85X)
Hot water limit thermostat - SOPAC /JAEGER (57°C + 3°C)
Safety overheat thermostat (TOKOSWHCH - (105°C)
(manual reset) (ELMWOOD
Overheat high- Iiit thermostat (TOKOSWITCH - (1lO’C)
(automatic reset) (ELMWOOD - (105’C)
Gas valve - AEMF
Fan motor - SEL
Manifold injectors 14 of ..... . .. . 1.28 mm 0.05 in
Gas section restrictors 213 valves 4.4 mm 0.17 in I Pump head - GRUNDFOS UP 15/60
l/3 valve.. .... 2.3 mm 0.09 in C.H. expansion vessel initial charge pressure - 0.65 bar (9.6 psi)
security valve ...... no restricior fitted Domestic expansion vesseI initii charge pressure . 2 bar (30 psi)
3 Minimum clearances around Boiler
Top above air duct ......... 50 mm (2 in)
Bottom below case. ......... 150mm (6in)
Sides ..... . .... . . . . ........ 100mm (4in)
Front. .. . .. .... ................ 6OOmm(24in)
1.4 Wall Thicknesses
The standard fIue assembly can accomodate the folrowing thicknesses.
Rear : from 55 mm to 576 mm
Side : from 55 mm to 392 mm
(this allows for a minimum dearance of 100 mm between the appliance and the side wall. As this dimension
increases, so the maximum side waII thickness available decreases).
Extension flue assemblies are available to accomodate waII thicknesses of:
Rear : from 577 mm to 2876 mm
Side : from 393 mm to 2692 mm
See figs. 2 and 3 for details of number of extensions required.
IMPORTANT NOTE : The extension ducts supplied. up to a maximum of 3, wiII in fact permit a greater length than
indicated to be covered. The ducts MUST be cut so that the maximum length from the centre Iine of the flue turret to
the outermost point of the air duct DOES NOT EXCEED 3 metres horizontal. Greater length must not be used.
See sections 1.4.1. 1.4.2. 1.4.3.
3
