26/32
230V 50 Hz
IP 20
28mm
1
1
/
4
" BSP
15mm
22mm
1
1
/
4
" BSP
1
1
/
4
" BSP
10mm Compression
125mm (5in.)
Balanced Flue Kit (Sec. 7.3)
Below 100°C
76.1 litres (16.7 gal.)
30 m (98 ft.)
1 m (3.3 ft.)
190Kg (418lbs)
197Kg (434lbs)
855mm (33.7in)
670mm (26.4in)
600mm (23.6in)
Electro Oil Sterling 40
120 mbar
40 mbar
57 kg/hr
82.5%
Unrestricted
22 litres/min
(4.8 gallons/min.)
recommended
Not Required
40°C
at 22 litres/min.
1.5 bar
at 22 litres/min.
SPECIFICATIONS
Model 12/14 15/19 20/25
POWER SUPPLY 230V 50 Hz 230V 50 Hz 230V 50 Hz
IP RATING IP 20 IP 20 IP 20
HEATING FLOW 22mm 22mm 22mm
HEATING RETURN 1in. BSP 1in. BSP 1in. BSP
COLD WATER MAINS INLET 15mm 15mm 15mm
DOMESTIC HOT WATER OUTLET 22mm 22mm 22mm
CENTRAL HEATING VENT 1in. BSP 1in. BSP 1in. BSP
CENTRAL HEATING MAKE-UP 1in. BSP 1in. BSP 1in. BSP
FUEL LINE 10mm Compression 10mm Compression 10mm Compression
FLUE REQUIREMENT
CF 100mm (4in.) 100mm (4in.) 100mm (4in.)
RS
Balanced Flue Kit (Sec. 7.3) Balanced Flue Kit (Sec. 7.3) Balanced Flue Kit (Sec. 7.3)
HEARTH TEMPERATURE Below 100°C Below 100°C Below 100°C
PRIMARY WATER CAPACITY (TOTAL) 67 litres (14.7 gal.) 67 litres (14.7 gal.) 70.5 litres (15.57 gal.)
MAXIMUM STATIC HEAD 30 m (98 ft.) 30 m (98 ft.) 30 m (98 ft.)
MINIMUM STATIC HEAD 1 m (3.3 ft.) 1 m (3.3 ft.) 1 m (3.3 ft.)
WEIGHT
CF 130Kg (286lbs) 133Kg (293lbs) 145Kg (319lbs)
RS 134Kg (295lbs)
137
Kg (302lbs)
149
Kg (328lbs)
OVERALL APPLIANCE HEIGHT 855mm (33.7in) 855mm (33.7in) 855mm (33.7in)
OVERALL APPLIANCE WIDTH 520mm (20.5in) 520mm (20.5in) 520mm (20.5in)
OVERALL APPLIANCE DEPTH 600mm (23.6in) 600mm (23.6in) 600mm (23.6in)
BURNER Electro Oil Inter B9 A Electro Oil Inter B9 B Electro Oil Inter B11C
WATER SIDE RESISTANCE 10°C Difference 7 mbar 8 mbar 18 mbar
WATER SIDE RESISTANCE 20°C Difference 3 mbar 6 mbar 12 mbar
EXIT FLUE GAS MASS FLOW 24 kg/hr 35 kg/hr 43 kg/hr
SEDBUK RATING* ( SEDBUK BAND C ) 82.5% 82.8% 82.5%
MAXIMUM DOMESTIC HOT WATER FLOW RATE 15 litres/min. 15 litres/min. Unrestricted
(+ or - 15%) (+ or - 15%) 17 litres/min.
(3.3 gallons/min.) (3.3 gallons/min.) (3.7 gallons/min.)
recommended
FLOW RESTRICTOR Lime Green Lime Green Not Required
MAX. DOMESTIC HOT WATER TEMPERATURE RISE 37°C 40°C 40°C
FOR 90 litres (20 gallons) DRAW OFF at 15 litres/min. at 15 litres/min. at 17 litres/min.
MIN. INLET DOMESTIC WATER PRESSURE (DYNAMIC) 1.6 bar 1.6 bar 1.0 bar
FOR MAXIMUM HOT WATER FLOW at 17 litres/min.
CENTRAL HEATING CONTROL THERMOSTAT RANGE 55°C minimum Cut In to 82°C maximum Cut Out
DOMESTIC HOT WATER CONTROL THERMOSTAT RANGE 55°C minimum Cut In to 80°C maximum Cut Out
CENTRAL HEATING AND DOMESTIC HOT WATER
CONTROL THERMOSTAT DIFFERENTIAL
5°C
BOILER HIGH LIMIT THERMOSTAT SET POINT 95 ± 2°C
MANUAL RESET OVERHEAT THERMOSTAT 110 +0–6 °C Cut-out
Table 1
* The value is used in the UK Government Standard Assesment Procedure (SAP) for energy ratings for dwellings.
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